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convert to go buildpack

This commit is contained in:
Cadey Ratio 2017-12-13 10:43:58 -08:00
parent 3b4b6cede9
commit 3a21ef1926
524 changed files with 90147 additions and 2420 deletions
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1
.buildpacks Normal file
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https://github.com/heroku/heroku-buildpack-go

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# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
branch = "master"
name = "github.com/GeertJohan/go.rice"
packages = [".","embedded"]
revision = "c02ca9a983da5807ddf7d796784928f5be4afd09"
[[projects]]
branch = "master"
name = "github.com/Xe/gopreload"
packages = ["."]
revision = "a00a8beb369cafd88bb7b32f31fc4ff3219c3565"
[[projects]]
branch = "master"
name = "github.com/Xe/jsonfeed"
packages = ["."]
revision = "e21591505612b9064436351ffc9acddfa3b583e8"
[[projects]]
name = "github.com/Xe/ln"
packages = ["."]
revision = "466e05b2ef3e48ce08a367b6aaac09ee29a124e5"
version = "v0.1"
[[projects]]
branch = "master"
name = "github.com/daaku/go.zipexe"
packages = ["."]
revision = "a5fe2436ffcb3236e175e5149162b41cd28bd27d"
[[projects]]
name = "github.com/google/gops"
packages = ["agent","internal","signal"]
revision = "57e77c5c37da1f4e1af49f9d1fe760f146c1579e"
version = "v0.3.2"
[[projects]]
name = "github.com/gorilla/feeds"
packages = ["."]
revision = "4b936b5221c53c99fcd4b15ac0b8c38ff490ab89"
version = "v1.0.0"
[[projects]]
branch = "master"
name = "github.com/jtolds/qod"
packages = ["."]
revision = "3abb44dfc7ba8b5cdfdb634786f57e78c7004e1c"
[[projects]]
branch = "master"
name = "github.com/kardianos/osext"
packages = ["."]
revision = "ae77be60afb1dcacde03767a8c37337fad28ac14"
[[projects]]
name = "github.com/magefile/mage"
packages = ["mg","types"]
revision = "ab3ca2f6f85577d7ec82e0a6df721147a2e737f9"
version = "v2.0.1"
[[projects]]
name = "github.com/pkg/errors"
packages = ["."]
revision = "645ef00459ed84a119197bfb8d8205042c6df63d"
version = "v0.8.0"
[[projects]]
name = "github.com/russross/blackfriday"
packages = ["."]
revision = "cadec560ec52d93835bf2f15bd794700d3a2473b"
version = "v2.0.0"
[[projects]]
branch = "master"
name = "github.com/shurcooL/sanitized_anchor_name"
packages = ["."]
revision = "86672fcb3f950f35f2e675df2240550f2a50762f"
[[projects]]
branch = "master"
name = "github.com/tj/front"
packages = ["."]
revision = "739be213b0a1c496dccaf9e5df1514150c9548e4"
[[projects]]
branch = "v1"
name = "gopkg.in/yaml.v1"
packages = ["."]
revision = "9f9df34309c04878acc86042b16630b0f696e1de"
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "0689be1827bc408bc22bad70a56fe65f0d7986f4b7a01376fd4c9420f54aac18"
solver-name = "gps-cdcl"
solver-version = 1

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# Gopkg.toml example
#
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
# for detailed Gopkg.toml documentation.
#
# required = ["github.com/user/thing/cmd/thing"]
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
#
# [[constraint]]
# name = "github.com/user/project"
# version = "1.0.0"
#
# [[constraint]]
# name = "github.com/user/project2"
# branch = "dev"
# source = "github.com/myfork/project2"
#
# [[override]]
# name = "github.com/x/y"
# version = "2.4.0"
[[constraint]]
branch = "master"
name = "github.com/GeertJohan/go.rice"
[[constraint]]
branch = "master"
name = "github.com/Xe/gopreload"
[[constraint]]
branch = "master"
name = "github.com/Xe/jsonfeed"
[[constraint]]
name = "github.com/Xe/ln"
version = "0.1.0"
[[constraint]]
name = "github.com/google/gops"
version = "0.3.2"
[[constraint]]
name = "github.com/gorilla/feeds"
version = "1.0.0"
[[constraint]]
branch = "master"
name = "github.com/jtolds/qod"
[[constraint]]
name = "github.com/magefile/mage"
version = "2.0.1"
[[constraint]]
name = "github.com/pkg/errors"
version = "0.8.0"
[[constraint]]
name = "github.com/russross/blackfriday"
version = "2.0.0"
[[constraint]]
branch = "master"
name = "github.com/tj/front"
[metadata.heroku]
root-package = "github.com/Xe/site"
install = [ "." ]
ensure = "false"

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web: site

15
vendor-log
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c02ca9a983da5807ddf7d796784928f5be4afd09 github.com/GeertJohan/go.rice
c02ca9a983da5807ddf7d796784928f5be4afd09 github.com/GeertJohan/go.rice/embedded
a00a8beb369cafd88bb7b32f31fc4ff3219c3565 github.com/Xe/gopreload
b685d4edebe855f8edbb4e605c0bf74e1e60b0e9 github.com/Xe/jsonfeed
f759b797c0ff6b2c514202198fe5e8ba90094c14 github.com/Xe/ln
a5fe2436ffcb3236e175e5149162b41cd28bd27d github.com/daaku/go.zipexe
62f833fc9f6c4d3223bdb37bd0c2f8951bed8596 github.com/google/gops/agent
62f833fc9f6c4d3223bdb37bd0c2f8951bed8596 github.com/google/gops/internal
62f833fc9f6c4d3223bdb37bd0c2f8951bed8596 github.com/google/gops/signal
441264de03a8117ed530ae8e049d8f601a33a099 github.com/gorilla/feeds
c2c54e542fb797ad986b31721e1baedf214ca413 github.com/kardianos/osext
ff09b135c25aae272398c51a07235b90a75aa4f0 github.com/pkg/errors
0ba0f2b6ed7c475a92e4df8641825cb7a11d1fa3 github.com/russross/blackfriday
739be213b0a1c496dccaf9e5df1514150c9548e4 github.com/tj/front
9f9df34309c04878acc86042b16630b0f696e1de gopkg.in/yaml.v1

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vendor/github.com/GeertJohan/go.rice/.gitignore generated vendored Normal file
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/example/example
/example/example.exe
/rice/rice
/rice/rice.exe
*.rice-box.go
*.rice-box.syso
.wercker

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vendor/github.com/GeertJohan/go.rice/.travis.yml generated vendored Normal file
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language: go
go:
- master
- 1.x.x
- 1.8.x
- 1.7.x
- 1.6.x
- 1.5.x
install:
- go get -t ./...
- env
- if [ "${TRAVIS_GO_VERSION%.*}" != "1.5" ]; then go get github.com/golang/lint/golint; fi
script:
- go build -x ./...
- go test -cover ./...
- go vet ./...
- if [ "${TRAVIS_GO_VERSION%.*}" != "1.5" ]; then golint .; fi

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vendor/github.com/GeertJohan/go.rice/AUTHORS generated vendored Normal file
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Geert-Johan Riemer <geertjohan@geertjohan.net>
Paul Maddox <paul.maddox@gmail.com>
Vincent Petithory <vincent.petithory@gmail.com>

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vendor/github.com/GeertJohan/go.rice/LICENSE generated vendored Normal file
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Copyright (c) 2013, Geert-Johan Riemer
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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vendor/github.com/GeertJohan/go.rice/README.md generated vendored Normal file
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## go.rice
[![Build Status](https://travis-ci.org/GeertJohan/go.rice.png)](https://travis-ci.org/GeertJohan/go.rice)
[![Godoc](https://img.shields.io/badge/godoc-go.rice-blue.svg?style=flat-square)](https://godoc.org/github.com/GeertJohan/go.rice)
go.rice is a [Go](http://golang.org) package that makes working with resources such as html,js,css,images and templates very easy. During development `go.rice` will load required files directly from disk. Upon deployment it is easy to add all resource files to a executable using the `rice` tool, without changing the source code for your package. go.rice provides several methods to add resources to a binary.
### What does it do?
The first thing go.rice does is finding the correct absolute path for your resource files. Say you are executing go binary in your home directory, but your `html-files` are located in `$GOPATH/src/yourApplication/html-files`. `go.rice` will lookup the correct path for that directory (relative to the location of yourApplication). The only thing you have to do is include the resources using `rice.FindBox("html-files")`.
This only works when the source is available to the machine executing the binary. Which is always the case when the binary was installed with `go get` or `go install`. It might occur that you wish to simply provide a binary, without source. The `rice` tool analyses source code and finds call's to `rice.FindBox(..)` and adds the required directories to the executable binary. There are several methods to add these resources. You can 'embed' by generating go source code, or append the resource to the executable as zip file. In both cases `go.rice` will detect the embedded or appended resources and load those, instead of looking up files from disk.
### Installation
Use `go get` to install the package the `rice` tool.
```
go get github.com/GeertJohan/go.rice
go get github.com/GeertJohan/go.rice/rice
```
### Package usage
Import the package: `import "github.com/GeertJohan/go.rice"`
**Serving a static content folder over HTTP with a rice Box**
```go
http.Handle("/", http.FileServer(rice.MustFindBox("http-files").HTTPBox()))
http.ListenAndServe(":8080", nil)
```
**Service a static content folder over HTTP at a non-root location**
```go
box := rice.MustFindBox("cssfiles")
cssFileServer := http.StripPrefix("/css/", http.FileServer(box.HTTPBox()))
http.Handle("/css/", cssFileServer)
http.ListenAndServe(":8080", nil)
```
Note the *trailing slash* in `/css/` in both the call to
`http.StripPrefix` and `http.Handle`.
**Loading a template**
```go
// find a rice.Box
templateBox, err := rice.FindBox("example-templates")
if err != nil {
log.Fatal(err)
}
// get file contents as string
templateString, err := templateBox.String("message.tmpl")
if err != nil {
log.Fatal(err)
}
// parse and execute the template
tmplMessage, err := template.New("message").Parse(templateString)
if err != nil {
log.Fatal(err)
}
tmplMessage.Execute(os.Stdout, map[string]string{"Message": "Hello, world!"})
```
Never call `FindBox()` or `MustFindBox()` from an `init()` function, as the boxes might have not been loaded at that time.
### Tool usage
The `rice` tool lets you add the resources to a binary executable so the files are not loaded from the filesystem anymore. This creates a 'standalone' executable. There are several ways to add the resources to a binary, each has pro's and con's but all will work without requiring changes to the way you load the resources.
#### embed-go
**Embed resources by generating Go source code**
This method must be executed before building. It generates a single Go source file called *rice-box.go* for each package, that is compiled by the go compiler into the binary.
The downside with this option is that the generated go source files can become very large, which will slow down compilation and require lots of memory to compile.
Execute the following commands:
```
rice embed-go
go build
```
*A Note on Symbolic Links*: `embed-go` uses the `os.Walk` function
from the standard library. The `os.Walk` function does **not** follow
symbolic links. So, when creating a box, be aware that any symbolic
links inside your box's directory will not be followed. **However**,
if the box itself is a symbolic link, its actual location will be
resolved first and then walked. In summary, if your box location is a
symbolic link, it will be followed but none of the symbolic links in
the box will be followed.
#### embed-syso
**Embed resources by generating a coff .syso file and some .go source code**
** This method is experimental and should not be used for production systems just yet **
This method must be executed before building. It generates a COFF .syso file and Go source file that are compiled by the go compiler into the binary.
Execute the following commands:
```
rice embed-syso
go build
```
#### append
**Append resources to executable as zip file**
This method changes an already built executable. It appends the resources as zip file to the binary. It makes compilation a lot faster and can be used with large resource files.
Downsides for appending are that it requires `zip` to be installed and does not provide a working Seek method.
Run the following commands to create a standalone executable.
```
go build -o example
rice append --exec example
```
**Note: requires zip command to be installed**
On windows, install zip from http://gnuwin32.sourceforge.net/packages/zip.htm or cygwin/msys toolsets.
#### Help information
Run `rice -h` for information about all options.
You can run the -h option for each sub-command, e.g. `rice append -h`.
### Order of precedence
When opening a new box, the rice package tries to locate the resources in the following order:
- embedded in generated go source
- appended as zip
- 'live' from filesystem
### License
This project is licensed under a Simplified BSD license. Please read the [LICENSE file][license].
### TODO & Development
This package is not completed yet. Though it already provides working embedding, some important featuers are still missing.
- implement Readdir() correctly on virtualDir
- in-code TODO's
- find boxes in imported packages
Less important stuff:
- idea, os/arch dependent embeds. rice checks if embedding file has _os_arch or build flags. If box is not requested by file without buildflags, then the buildflags are applied to the embed file.
### Package documentation
You will find package documentation at [godoc.org/github.com/GeertJohan/go.rice][godoc].
[license]: https://github.com/GeertJohan/go.rice/blob/master/LICENSE
[godoc]: http://godoc.org/github.com/GeertJohan/go.rice

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vendor/github.com/GeertJohan/go.rice/config_test.go generated vendored Normal file
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package rice
import (
"fmt"
"io/ioutil"
"testing"
"github.com/GeertJohan/go.rice/embedded"
)
// For all test code in this package, define a set of test boxes.
var eb1 *embedded.EmbeddedBox
var ab1, ab2 *appendedBox
var fsb1, fsb2, fsb3 string // paths to filesystem boxes
func init() {
var err error
// Box1 exists in all three locations.
eb1 = &embedded.EmbeddedBox{Name: "box1"}
embedded.RegisterEmbeddedBox(eb1.Name, eb1)
ab1 = &appendedBox{Name: "box1"}
appendedBoxes["box1"] = ab1
fsb1, err = ioutil.TempDir("", "box1")
if err != nil {
panic(err)
}
// Box2 exists in only appended and FS.
ab2 = &appendedBox{Name: "box2"}
appendedBoxes["box2"] = ab2
fsb2, err = ioutil.TempDir("", "box2")
if err != nil {
panic(err)
}
// Box3 exists only on disk.
fsb3, err = ioutil.TempDir("", "box3")
if err != nil {
panic(err)
}
// Also, replace the default filesystem lookup path to directly support the
// on-disk temp directories.
resolveAbsolutePathFromCaller = func(name string, n int) (string, error) {
if name == "box1" {
return fsb1, nil
} else if name == "box2" {
return fsb2, nil
} else if name == "box3" {
return fsb3, nil
}
return "", fmt.Errorf("Unknown box name: %q", name)
}
}
func TestDefaultLookupOrder(t *testing.T) {
// Box1 exists in all three, so the default order should find the embedded.
b, err := FindBox("box1")
if err != nil {
t.Fatalf("Expected to find box1, got error: %v", err)
}
if b.embed != eb1 {
t.Fatalf("Expected to find embedded box, but got %#v", b)
}
// Box2 exists in appended and FS, so find the appended.
b2, err := FindBox("box2")
if err != nil {
t.Fatalf("Expected to find box2, got error: %v", err)
}
if b2.appendd != ab2 {
t.Fatalf("Expected to find appended box, but got %#v", b2)
}
// Box3 exists only on FS, so find it there.
b3, err := FindBox("box3")
if err != nil {
t.Fatalf("Expected to find box3, got error: %v", err)
}
if b3.absolutePath != fsb3 {
t.Fatalf("Expected to find FS box, but got %#v", b3)
}
}
func TestConfigLocateOrder(t *testing.T) {
cfg := Config{LocateOrder: []LocateMethod{LocateFS, LocateAppended, LocateEmbedded}}
fsb := []string{fsb1, fsb2, fsb3}
// All 3 boxes have a FS backend, so we should always find that.
for i, boxName := range []string{"box1", "box2", "box3"} {
b, err := cfg.FindBox(boxName)
if err != nil {
t.Fatalf("Expected to find %q, got error: %v", boxName, err)
}
if b.absolutePath != fsb[i] {
t.Fatalf("Expected to find FS box, but got %#v", b)
}
}
cfg.LocateOrder = []LocateMethod{LocateAppended, LocateFS, LocateEmbedded}
{
b, err := cfg.FindBox("box3")
if err != nil {
t.Fatalf("Expected to find box3, got error: %v", err)
}
if b.absolutePath != fsb3 {
t.Fatalf("Expected to find FS box, but got %#v", b)
}
}
{
b, err := cfg.FindBox("box2")
if err != nil {
t.Fatalf("Expected to find box2, got error: %v", err)
}
if b.appendd != ab2 {
t.Fatalf("Expected to find appended box, but got %#v", b)
}
}
// What if we don't list all the locate methods?
cfg.LocateOrder = []LocateMethod{LocateEmbedded}
{
b, err := cfg.FindBox("box2")
if err == nil {
t.Fatalf("Expected not to find box2, but something was found: %#v", b)
}
}
{
b, err := cfg.FindBox("box1")
if err != nil {
t.Fatalf("Expected to find box2, got error: %v", err)
}
if b.embed != eb1 {
t.Fatalf("Expected to find embedded box, but got %#v", b)
}
}
}

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test content
break

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vendor/github.com/GeertJohan/go.rice/example/example-templates/message.tmpl generated vendored Normal file
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I have a message for you: {{.Message}}

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vendor/github.com/GeertJohan/go.rice/example/example.go generated vendored Normal file
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package main
import (
"encoding/hex"
"fmt"
"log"
"net/http"
"os"
"text/template"
"github.com/GeertJohan/go.rice"
"github.com/davecgh/go-spew/spew"
)
func main() {
conf := rice.Config{
LocateOrder: []rice.LocateMethod{rice.LocateEmbedded, rice.LocateAppended, rice.LocateFS},
}
box, err := conf.FindBox("example-files")
if err != nil {
log.Fatalf("error opening rice.Box: %s\n", err)
}
// spew.Dump(box)
contentString, err := box.String("file.txt")
if err != nil {
log.Fatalf("could not read file contents as string: %s\n", err)
}
log.Printf("Read some file contents as string:\n%s\n", contentString)
contentBytes, err := box.Bytes("file.txt")
if err != nil {
log.Fatalf("could not read file contents as byteSlice: %s\n", err)
}
log.Printf("Read some file contents as byteSlice:\n%s\n", hex.Dump(contentBytes))
file, err := box.Open("file.txt")
if err != nil {
log.Fatalf("could not open file: %s\n", err)
}
spew.Dump(file)
// find/create a rice.Box
templateBox, err := rice.FindBox("example-templates")
if err != nil {
log.Fatal(err)
}
// get file contents as string
templateString, err := templateBox.String("message.tmpl")
if err != nil {
log.Fatal(err)
}
// parse and execute the template
tmplMessage, err := template.New("message").Parse(templateString)
if err != nil {
log.Fatal(err)
}
tmplMessage.Execute(os.Stdout, map[string]string{"Message": "Hello, world!"})
http.Handle("/", http.FileServer(box.HTTPBox()))
go func() {
fmt.Println("Serving files on :8080, press ctrl-C to exit")
err := http.ListenAndServe(":8080", nil)
if err != nil {
log.Fatalf("error serving files: %v", err)
}
}()
select {}
}

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vendor/github.com/GeertJohan/go.rice/rice/append.go generated vendored Normal file
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package main
import (
"archive/zip"
"fmt"
"go/build"
"io"
"os"
"path/filepath"
"strings"
"time"
zipexe "github.com/daaku/go.zipexe"
)
func operationAppend(pkgs []*build.Package) {
// create tmp zipfile
tmpZipfileName := filepath.Join(os.TempDir(), fmt.Sprintf("ricebox-%d-%s.zip", time.Now().Unix(), randomString(10)))
verbosef("Will create tmp zipfile: %s\n", tmpZipfileName)
tmpZipfile, err := os.Create(tmpZipfileName)
if err != nil {
fmt.Printf("Error creating tmp zipfile: %s\n", err)
os.Exit(1)
}
defer func() {
tmpZipfile.Close()
os.Remove(tmpZipfileName)
}()
// find abs path for binary file
binfileName, err := filepath.Abs(flags.Append.Executable)
if err != nil {
fmt.Printf("Error finding absolute path for executable to append: %s\n", err)
os.Exit(1)
}
verbosef("Will append to file: %s\n", binfileName)
// check that command doesn't already have zip appended
if rd, _ := zipexe.Open(binfileName); rd != nil {
fmt.Printf("Cannot append to already appended executable. Please remove %s and build a fresh one.\n", binfileName)
os.Exit(1)
}
// open binfile
binfile, err := os.OpenFile(binfileName, os.O_WRONLY, os.ModeAppend)
if err != nil {
fmt.Printf("Error: unable to open executable file: %s\n", err)
os.Exit(1)
}
defer binfile.Close()
binfileInfo, err := binfile.Stat()
if err != nil {
fmt.Printf("Error: unable to stat executable file: %s\n", err)
os.Exit(1)
}
// create zip.Writer
zipWriter := zip.NewWriter(tmpZipfile)
// write the zip offset into the zip data
zipWriter.SetOffset(binfileInfo.Size())
for _, pkg := range pkgs {
// find boxes for this command
boxMap := findBoxes(pkg)
// notify user when no calls to rice.FindBox are made (is this an error and therefore os.Exit(1) ?
if len(boxMap) == 0 {
fmt.Printf("no calls to rice.FindBox() or rice.MustFindBox() found in import path `%s`\n", pkg.ImportPath)
continue
}
verbosef("\n")
for boxname := range boxMap {
appendedBoxName := strings.Replace(boxname, `/`, `-`, -1)
// walk box path's and insert files
boxPath := filepath.Clean(filepath.Join(pkg.Dir, boxname))
filepath.Walk(boxPath, func(path string, info os.FileInfo, err error) error {
if info == nil {
fmt.Printf("Error: box \"%s\" not found on disk\n", path)
os.Exit(1)
}
// create zipFilename
zipFileName := filepath.Join(appendedBoxName, strings.TrimPrefix(path, boxPath))
// write directories as empty file with comment "dir"
if info.IsDir() {
_, err := zipWriter.CreateHeader(&zip.FileHeader{
Name: zipFileName,
Comment: "dir",
})
if err != nil {
fmt.Printf("Error creating dir in tmp zip: %s\n", err)
os.Exit(1)
}
return nil
}
// create zipFileWriter
zipFileHeader, err := zip.FileInfoHeader(info)
if err != nil {
fmt.Printf("Error creating zip FileHeader: %v\n", err)
os.Exit(1)
}
zipFileHeader.Name = zipFileName
zipFileWriter, err := zipWriter.CreateHeader(zipFileHeader)
if err != nil {
fmt.Printf("Error creating file in tmp zip: %s\n", err)
os.Exit(1)
}
srcFile, err := os.Open(path)
if err != nil {
fmt.Printf("Error opening file to append: %s\n", err)
os.Exit(1)
}
_, err = io.Copy(zipFileWriter, srcFile)
if err != nil {
fmt.Printf("Error copying file contents to zip: %s\n", err)
os.Exit(1)
}
srcFile.Close()
return nil
})
}
}
err = zipWriter.Close()
if err != nil {
fmt.Printf("Error closing tmp zipfile: %s\n", err)
os.Exit(1)
}
err = tmpZipfile.Sync()
if err != nil {
fmt.Printf("Error syncing tmp zipfile: %s\n", err)
os.Exit(1)
}
_, err = tmpZipfile.Seek(0, 0)
if err != nil {
fmt.Printf("Error seeking tmp zipfile: %s\n", err)
os.Exit(1)
}
_, err = binfile.Seek(0, 2)
if err != nil {
fmt.Printf("Error seeking bin file: %s\n", err)
os.Exit(1)
}
_, err = io.Copy(binfile, tmpZipfile)
if err != nil {
fmt.Printf("Error appending zipfile to executable: %s\n", err)
os.Exit(1)
}
}

33
vendor/github.com/GeertJohan/go.rice/rice/clean.go generated vendored Normal file
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@ -0,0 +1,33 @@
package main
import (
"fmt"
"go/build"
"os"
"path/filepath"
"strings"
)
func operationClean(pkg *build.Package) {
filepath.Walk(pkg.Dir, func(filename string, info os.FileInfo, err error) error {
if err != nil {
fmt.Printf("error walking pkg dir to clean files: %v\n", err)
os.Exit(1)
}
if info.IsDir() {
return nil
}
verbosef("checking file '%s'\n", filename)
if filepath.Base(filename) == "rice-box.go" ||
strings.HasSuffix(filename, ".rice-box.go") ||
strings.HasSuffix(filename, ".rice-box.syso") {
err := os.Remove(filename)
if err != nil {
fmt.Printf("error removing file (%s): %s\n", filename, err)
os.Exit(-1)
}
verbosef("removed file '%s'\n", filename)
}
return nil
})
}

161
vendor/github.com/GeertJohan/go.rice/rice/embed-go.go generated vendored Normal file
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@ -0,0 +1,161 @@
package main
import (
"bytes"
"fmt"
"go/build"
"go/format"
"io"
"io/ioutil"
"log"
"os"
"path/filepath"
"strings"
)
const boxFilename = "rice-box.go"
func writeBoxesGo(pkg *build.Package, out io.Writer) error {
boxMap := findBoxes(pkg)
// notify user when no calls to rice.FindBox are made (is this an error and therefore os.Exit(1) ?
if len(boxMap) == 0 {
fmt.Println("no calls to rice.FindBox() found")
return nil
}
verbosef("\n")
var boxes []*boxDataType
for boxname := range boxMap {
// find path and filename for this box
boxPath := filepath.Join(pkg.Dir, boxname)
// Check to see if the path for the box is a symbolic link. If so, simply
// box what the symbolic link points to. Note: the filepath.Walk function
// will NOT follow any nested symbolic links. This only handles the case
// where the root of the box is a symbolic link.
symPath, serr := os.Readlink(boxPath)
if serr == nil {
boxPath = symPath
}
// verbose info
verbosef("embedding box '%s' to '%s'\n", boxname, boxFilename)
// read box metadata
boxInfo, ierr := os.Stat(boxPath)
if ierr != nil {
return fmt.Errorf("Error: unable to access box at %s\n", boxPath)
}
// create box datastructure (used by template)
box := &boxDataType{
BoxName: boxname,
UnixNow: boxInfo.ModTime().Unix(),
Files: make([]*fileDataType, 0),
Dirs: make(map[string]*dirDataType),
}
if !boxInfo.IsDir() {
return fmt.Errorf("Error: Box %s must point to a directory but points to %s instead\n",
boxname, boxPath)
}
// fill box datastructure with file data
err := filepath.Walk(boxPath, func(path string, info os.FileInfo, err error) error {
if err != nil {
return fmt.Errorf("error walking box: %s\n", err)
}
filename := strings.TrimPrefix(path, boxPath)
filename = strings.Replace(filename, "\\", "/", -1)
filename = strings.TrimPrefix(filename, "/")
if info.IsDir() {
dirData := &dirDataType{
Identifier: "dir" + nextIdentifier(),
FileName: filename,
ModTime: info.ModTime().Unix(),
ChildFiles: make([]*fileDataType, 0),
ChildDirs: make([]*dirDataType, 0),
}
verbosef("\tincludes dir: '%s'\n", dirData.FileName)
box.Dirs[dirData.FileName] = dirData
// add tree entry (skip for root, it'll create a recursion)
if dirData.FileName != "" {
pathParts := strings.Split(dirData.FileName, "/")
parentDir := box.Dirs[strings.Join(pathParts[:len(pathParts)-1], "/")]
parentDir.ChildDirs = append(parentDir.ChildDirs, dirData)
}
} else {
fileData := &fileDataType{
Identifier: "file" + nextIdentifier(),
FileName: filename,
ModTime: info.ModTime().Unix(),
}
verbosef("\tincludes file: '%s'\n", fileData.FileName)
fileData.Content, err = ioutil.ReadFile(path)
if err != nil {
return fmt.Errorf("error reading file content while walking box: %s\n", err)
}
box.Files = append(box.Files, fileData)
// add tree entry
pathParts := strings.Split(fileData.FileName, "/")
parentDir := box.Dirs[strings.Join(pathParts[:len(pathParts)-1], "/")]
if parentDir == nil {
return fmt.Errorf("Error: parent of %s is not within the box\n", path)
}
parentDir.ChildFiles = append(parentDir.ChildFiles, fileData)
}
return nil
})
if err != nil {
return err
}
boxes = append(boxes, box)
}
embedSourceUnformated := bytes.NewBuffer(make([]byte, 0))
// execute template to buffer
err := tmplEmbeddedBox.Execute(
embedSourceUnformated,
embedFileDataType{pkg.Name, boxes},
)
if err != nil {
return fmt.Errorf("error writing embedded box to file (template execute): %s\n", err)
}
// format the source code
embedSource, err := format.Source(embedSourceUnformated.Bytes())
if err != nil {
return fmt.Errorf("error formatting embedSource: %s\n", err)
}
// write source to file
_, err = io.Copy(out, bytes.NewBuffer(embedSource))
if err != nil {
return fmt.Errorf("error writing embedSource to file: %s\n", err)
}
return nil
}
func operationEmbedGo(pkg *build.Package) {
// create go file for box
boxFile, err := os.Create(filepath.Join(pkg.Dir, boxFilename))
if err != nil {
log.Printf("error creating embedded box file: %s\n", err)
os.Exit(1)
}
defer boxFile.Close()
err = writeBoxesGo(pkg, boxFile)
if err != nil {
log.Printf("error creating embedded box file: %s\n", err)
os.Exit(1)
}
}

680
vendor/github.com/GeertJohan/go.rice/rice/embed-go_test.go generated vendored Normal file
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@ -0,0 +1,680 @@
package main
import (
"bytes"
"fmt"
"go/ast"
"go/parser"
"go/token"
"path"
"path/filepath"
"strconv"
"strings"
"testing"
)
type registeredDir struct {
Filename string
ModTime int
ChildFiles []*registeredFile
ChildDirs []*registeredDir
}
type registeredFile struct {
Filename string
ModTime int
Content string
}
type registeredBox struct {
Name string
Time int
// key is path
Dirs map[string]*registeredDir
// key is path
Files map[string]*registeredFile
}
// isSimpleSelector returns true if expr is pkgName.ident
func isSimpleSelector(pkgName, ident string, expr ast.Expr) bool {
if sel, ok := expr.(*ast.SelectorExpr); ok {
if pkgIdent, ok := sel.X.(*ast.Ident); ok && pkgIdent.Name == pkgName && sel.Sel != nil && sel.Sel.Name == ident {
return true
}
}
return false
}
func isIdent(ident string, expr ast.Expr) bool {
if expr, ok := expr.(*ast.Ident); ok && expr.Name == ident {
return true
}
return false
}
func getIdentName(expr ast.Expr) (string, bool) {
if expr, ok := expr.(*ast.Ident); ok {
return expr.Name, true
}
return "", false
}
func getKey(expr *ast.KeyValueExpr) string {
if ident, ok := expr.Key.(*ast.Ident); ok {
return ident.Name
}
return ""
}
// parseModTime parses a time.Unix call, and returns the unix time.
func parseModTime(expr ast.Expr) (int, error) {
if expr, ok := expr.(*ast.CallExpr); ok {
if !isSimpleSelector("time", "Unix", expr.Fun) {
return 0, fmt.Errorf("ModTime is not time.Unix: %#v", expr.Fun)
}
if len(expr.Args) == 0 {
return 0, fmt.Errorf("not enough args to time.Unix")
}
arg0 := expr.Args[0]
if lit, ok := arg0.(*ast.BasicLit); ok && lit.Kind == token.INT {
return strconv.Atoi(lit.Value)
}
}
return 0, fmt.Errorf("not time.Unix: %#v", expr)
}
func parseString(expr ast.Expr) (string, error) {
if expr, ok := expr.(*ast.CallExpr); ok && isIdent("string", expr.Fun) && len(expr.Args) == 1 {
return parseString(expr.Args[0])
}
if lit, ok := expr.(*ast.BasicLit); ok && lit.Kind == token.STRING {
return strconv.Unquote(lit.Value)
}
return "", fmt.Errorf("not string: %#v", expr)
}
// parseDir parses an embedded.EmbeddedDir literal.
// It can be either a variable name or a composite literal.
// Returns nil if the literal is not embedded.EmbeddedDir.
func parseDir(expr ast.Expr, dirs map[string]*registeredDir, files map[string]*registeredFile) (*registeredDir, []error) {
if varName, ok := getIdentName(expr); ok {
dir, ok := dirs[varName]
if !ok {
return nil, []error{fmt.Errorf("unknown variable %v", varName)}
}
return dir, nil
}
lit, ok := expr.(*ast.CompositeLit)
if !ok {
return nil, []error{fmt.Errorf("dir is not a composite literal: %#v", expr)}
}
var errors []error
if !isSimpleSelector("embedded", "EmbeddedDir", lit.Type) {
return nil, nil
}
ret := &registeredDir{}
for _, el := range lit.Elts {
if el, ok := el.(*ast.KeyValueExpr); ok {
key := getKey(el)
if key == "" {
continue
}
switch key {
case "DirModTime":
var err error
ret.ModTime, err = parseModTime(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("DirModTime %s", err))
}
case "Filename":
var err error
ret.Filename, err = parseString(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("Filename %s", err))
}
case "ChildDirs":
var errors2 []error
ret.ChildDirs, errors2 = parseDirsSlice(el.Value, dirs, files)
errors = append(errors, errors2...)
case "ChildFiles":
var errors2 []error
ret.ChildFiles, errors2 = parseFilesSlice(el.Value, files)
errors = append(errors, errors2...)
default:
errors = append(errors, fmt.Errorf("Unknown field: %v: %#v", key, el.Value))
}
}
}
return ret, errors
}
// parseFile parses an embedded.EmbeddedFile literal.
// It can be either a variable name or a composite literal.
// Returns nil if the literal is not embedded.EmbeddedFile.
func parseFile(expr ast.Expr, files map[string]*registeredFile) (*registeredFile, []error) {
if varName, ok := getIdentName(expr); ok {
file, ok := files[varName]
if !ok {
return nil, []error{fmt.Errorf("unknown variable %v", varName)}
}
return file, nil
}
lit, ok := expr.(*ast.CompositeLit)
if !ok {
return nil, []error{fmt.Errorf("file is not a composite literal: %#v", expr)}
}
var errors []error
if !isSimpleSelector("embedded", "EmbeddedFile", lit.Type) {
return nil, nil
}
ret := &registeredFile{}
for _, el := range lit.Elts {
if el, ok := el.(*ast.KeyValueExpr); ok {
key := getKey(el)
if key == "" {
continue
}
switch key {
case "FileModTime":
var err error
ret.ModTime, err = parseModTime(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("DirModTime %s", err))
}
case "Filename":
var err error
ret.Filename, err = parseString(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("Filename %s", err))
}
case "Content":
var err error
ret.Content, err = parseString(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("Content %s", err))
}
default:
errors = append(errors, fmt.Errorf("Unknown field: %v: %#v", key, el.Value))
}
}
}
return ret, errors
}
func parseRegistration(lit *ast.CompositeLit, dirs map[string]*registeredDir, files map[string]*registeredFile) (*registeredBox, []error) {
var errors []error
if !isSimpleSelector("embedded", "EmbeddedBox", lit.Type) {
return nil, nil
}
ret := &registeredBox{
Dirs: make(map[string]*registeredDir),
Files: make(map[string]*registeredFile),
}
for _, el := range lit.Elts {
if el, ok := el.(*ast.KeyValueExpr); ok {
key := getKey(el)
if key == "" {
continue
}
switch key {
case "Time":
var err error
ret.Time, err = parseModTime(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("Time %s", err))
}
case "Name":
var err error
ret.Name, err = parseString(el.Value)
if err != nil {
errors = append(errors, fmt.Errorf("Name %s", err))
}
case "Dirs":
var errors2 []error
ret.Dirs, errors2 = parseDirsMap(el.Value, dirs, files)
errors = append(errors, errors2...)
case "Files":
var errors2 []error
ret.Files, errors2 = parseFilesMap(el.Value, files)
errors = append(errors, errors2...)
default:
errors = append(errors, fmt.Errorf("Unknown field: %v: %#v", key, el.Value))
}
}
}
return ret, errors
}
func parseDirsSlice(expr ast.Expr, dirs map[string]*registeredDir, files map[string]*registeredFile) (childDirs []*registeredDir, errors []error) {
valid := false
lit, ok := expr.(*ast.CompositeLit)
if ok {
if arrType, ok := lit.Type.(*ast.ArrayType); ok {
if star, ok := arrType.Elt.(*ast.StarExpr); ok {
if isSimpleSelector("embedded", "EmbeddedDir", star.X) {
valid = true
}
}
}
}
if !valid {
return nil, []error{fmt.Errorf("not a []*embedded.EmbeddedDir: %#v", expr)}
}
for _, el := range lit.Elts {
child, childErrors := parseDir(el, dirs, files)
errors = append(errors, childErrors...)
childDirs = append(childDirs, child)
}
return
}
func parseFilesSlice(expr ast.Expr, files map[string]*registeredFile) (childFiles []*registeredFile, errors []error) {
valid := false
lit, ok := expr.(*ast.CompositeLit)
if ok {
if arrType, ok := lit.Type.(*ast.ArrayType); ok {
if star, ok := arrType.Elt.(*ast.StarExpr); ok {
if isSimpleSelector("embedded", "EmbeddedFile", star.X) {
valid = true
}
}
}
}
if !valid {
return nil, []error{fmt.Errorf("not a []*embedded.EmbeddedFile: %#v", expr)}
}
for _, el := range lit.Elts {
child, childErrors := parseFile(el, files)
errors = append(errors, childErrors...)
childFiles = append(childFiles, child)
}
return
}
func parseDirsMap(expr ast.Expr, dirs map[string]*registeredDir, files map[string]*registeredFile) (childDirs map[string]*registeredDir, errors []error) {
valid := false
lit, ok := expr.(*ast.CompositeLit)
if ok {
if mapType, ok := lit.Type.(*ast.MapType); ok {
if star, ok := mapType.Value.(*ast.StarExpr); ok {
if isSimpleSelector("embedded", "EmbeddedDir", star.X) && isIdent("string", mapType.Key) {
valid = true
}
}
}
}
if !valid {
return nil, []error{fmt.Errorf("not a map[string]*embedded.EmbeddedDir: %#v", expr)}
}
childDirs = make(map[string]*registeredDir)
for _, el := range lit.Elts {
kv, ok := el.(*ast.KeyValueExpr)
if !ok {
errors = append(errors, fmt.Errorf("not a KeyValueExpr: %#v", el))
continue
}
key, err := parseString(kv.Key)
if err != nil {
errors = append(errors, fmt.Errorf("key %s", err))
continue
}
child, childErrors := parseDir(kv.Value, dirs, files)
errors = append(errors, childErrors...)
childDirs[key] = child
}
return
}
func parseFilesMap(expr ast.Expr, files map[string]*registeredFile) (childFiles map[string]*registeredFile, errors []error) {
valid := false
lit, ok := expr.(*ast.CompositeLit)
if ok {
if mapType, ok := lit.Type.(*ast.MapType); ok {
if star, ok := mapType.Value.(*ast.StarExpr); ok {
if isSimpleSelector("embedded", "EmbeddedFile", star.X) && isIdent("string", mapType.Key) {
valid = true
}
}
}
}
if !valid {
return nil, []error{fmt.Errorf("not a map[string]*embedded.EmbeddedFile: %#v", expr)}
}
childFiles = make(map[string]*registeredFile)
for _, el := range lit.Elts {
kv, ok := el.(*ast.KeyValueExpr)
if !ok {
errors = append(errors, fmt.Errorf("not a KeyValueExpr: %#v", el))
continue
}
key, err := parseString(kv.Key)
if err != nil {
errors = append(errors, fmt.Errorf("key %s", err))
continue
}
child, childErrors := parseFile(kv.Value, files)
errors = append(errors, childErrors...)
childFiles[key] = child
}
return
}
// unpoint returns the expression expr points to
// if expr is a & unary expression.
func unpoint(expr ast.Expr) ast.Expr {
if expr, ok := expr.(*ast.UnaryExpr); ok {
if expr.Op == token.AND {
return expr.X
}
}
return expr
}
func validateBox(t *testing.T, box *registeredBox, files []sourceFile) {
dirsToBeChecked := make(map[string]struct{})
filesToBeChecked := make(map[string]string)
for _, file := range files {
if !strings.HasPrefix(file.Name, box.Name) {
continue
}
pathParts := strings.Split(file.Name, "/")
dirs := pathParts[:len(pathParts)-1]
dirPath := ""
for _, dir := range dirs {
if dir != box.Name {
dirPath = path.Join(dirPath, dir)
}
dirsToBeChecked[dirPath] = struct{}{}
}
filesToBeChecked[path.Join(dirPath, pathParts[len(pathParts)-1])] = string(file.Contents)
}
if len(box.Files) != len(filesToBeChecked) {
t.Errorf("box %v has incorrect number of files; expected %v, got %v", box.Name, len(filesToBeChecked), len(box.Files))
}
if len(box.Dirs) != len(dirsToBeChecked) {
t.Errorf("box %v has incorrect number of dirs; expected %v, got %v", box.Name, len(dirsToBeChecked), len(box.Dirs))
}
for name, content := range filesToBeChecked {
f, ok := box.Files[name]
if !ok {
t.Errorf("file %v not present in box %v", name, box.Name)
continue
}
if f.Filename != name {
t.Errorf("box %v: filename mismatch: key: %v; Filename: %v", box.Name, name, f.Filename)
}
if f.Content != content {
t.Errorf("box %v: file %v content does not match: got %v, expected %v", box.Name, name, f.Content, content)
}
dirPath, _ := path.Split(name)
dirPath = strings.TrimSuffix(dirPath, "/")
dir, ok := box.Dirs[dirPath]
if !ok {
t.Errorf("directory %v not present in box %v", dirPath, box.Name)
continue
}
found := false
for _, file := range dir.ChildFiles {
if file == f {
found = true
}
}
if !found {
t.Errorf("file %v not found in directory %v in box %v", name, dirPath, box.Name)
continue
}
}
for name := range dirsToBeChecked {
d, ok := box.Dirs[name]
if !ok {
t.Errorf("directory %v not present in box %v", name, box.Name)
continue
}
if d.Filename != name {
t.Errorf("box %v: filename mismatch: key: %v; Filename: %v", box.Name, name, d.Filename)
}
if name != "" {
dirPath, _ := path.Split(name)
dirPath = strings.TrimSuffix(dirPath, "/")
dir, ok := box.Dirs[dirPath]
if !ok {
t.Errorf("directory %v not present in box %v", dirPath, box.Name)
continue
}
found := false
for _, dir := range dir.ChildDirs {
if dir == d {
found = true
}
}
if !found {
t.Errorf("directory %v not found in directory %v in box %v", name, dirPath, box.Name)
continue
}
}
}
}
func TestEmbedGo(t *testing.T) {
sourceFiles := []sourceFile{
{
"boxes.go",
[]byte(`package main
import (
"github.com/GeertJohan/go.rice"
)
func main() {
rice.MustFindBox("foo")
}
`),
},
{
"foo/test1.txt",
[]byte(`This is test 1`),
},
{
"foo/test2.txt",
[]byte(`This is test 2`),
},
{
"foo/bar/test1.txt",
[]byte(`This is test 1 in bar`),
},
{
"foo/bar/baz/test1.txt",
[]byte(`This is test 1 in bar/baz`),
},
{
"foo/bar/baz/backtick`.txt",
[]byte(`Backtick filename`),
},
{
"foo/bar/baz/\"quote\".txt",
[]byte(`double quoted filename`),
},
{
"foo/bar/baz/'quote'.txt",
[]byte(`single quoted filename`),
},
{
"foo/`/`/`.txt",
[]byte(`Backticks everywhere!`),
},
{
"foo/new\nline",
[]byte("File with newline in name. Yes, this is possible."),
},
}
pkg, cleanup, err := setUpTestPkg("foobar", sourceFiles)
defer cleanup()
if err != nil {
t.Error(err)
return
}
var buffer bytes.Buffer
err = writeBoxesGo(pkg, &buffer)
if err != nil {
t.Error(err)
return
}
t.Logf("Generated file: \n%s", buffer.String())
fset := token.NewFileSet()
f, err := parser.ParseFile(fset, filepath.Join(pkg.Dir, "rice-box.go"), &buffer, 0)
if err != nil {
t.Error(err)
return
}
var initFunc *ast.FuncDecl
for _, decl := range f.Decls {
if decl, ok := decl.(*ast.FuncDecl); ok && decl.Name != nil && decl.Name.Name == "init" {
initFunc = decl
break
}
}
if initFunc == nil {
t.Fatal("init function not found in generated file")
}
if initFunc.Body == nil {
t.Fatal("init function has no body in generated file")
}
var registrations []*ast.CallExpr
directories := make(map[string]*registeredDir)
files := make(map[string]*registeredFile)
_ = directories
_ = files
for _, stmt := range initFunc.Body.List {
if stmt, ok := stmt.(*ast.ExprStmt); ok {
if call, ok := stmt.X.(*ast.CallExpr); ok {
registrations = append(registrations, call)
}
continue
}
if stmt, ok := stmt.(*ast.AssignStmt); ok {
for i, rhs := range stmt.Rhs {
// Rhs can be EmbeddedDir or EmbeddedFile.
var literal *ast.CompositeLit
literal, ok := unpoint(rhs).(*ast.CompositeLit)
if !ok {
continue
}
if lhs, ok := stmt.Lhs[i].(*ast.Ident); ok {
// variable
edir, direrrs := parseDir(literal, directories, files)
efile, fileerrs := parseFile(literal, files)
abort := false
for _, err := range direrrs {
t.Error("error while parsing dir: ", err)
abort = true
}
for _, err := range fileerrs {
t.Error("error while parsing file: ", err)
abort = true
}
if abort {
return
}
if edir == nil && efile == nil {
continue
}
if edir != nil {
directories[lhs.Name] = edir
} else {
files[lhs.Name] = efile
}
} else if lhs, ok := stmt.Lhs[i].(*ast.SelectorExpr); ok {
selName, ok := getIdentName(lhs.Sel)
if !ok || selName != "ChildDirs" {
continue
}
varName, ok := getIdentName(lhs.X)
if !ok {
t.Fatalf("cannot parse ChildDirs assignment: %#v", lhs)
}
dir, ok := directories[varName]
if !ok {
t.Fatalf("variable %v not found", varName)
}
var errors []error
dir.ChildDirs, errors = parseDirsSlice(rhs, directories, files)
abort := false
for _, err := range errors {
t.Errorf("error parsing child dirs: %s", err)
abort = true
}
if abort {
return
}
}
}
}
}
if len(registrations) == 0 {
t.Fatal("could not find registration of embedded box")
}
boxes := make(map[string]*registeredBox)
for _, call := range registrations {
if isSimpleSelector("embedded", "RegisterEmbeddedBox", call.Fun) {
if len(call.Args) != 2 {
t.Fatalf("incorrect arguments to embedded.RegisterEmbeddedBox: %#v", call.Args)
}
boxArg := unpoint(call.Args[1])
name, err := parseString(call.Args[0])
if err != nil {
t.Fatalf("first argument to embedded.RegisterEmbeddedBox incorrect: %s", err)
}
boxLit, ok := boxArg.(*ast.CompositeLit)
if !ok {
t.Fatalf("second argument to embedded.RegisterEmbeddedBox is not a composite literal: %#v", boxArg)
}
abort := false
box, errors := parseRegistration(boxLit, directories, files)
for _, err := range errors {
t.Error("error while parsing box: ", err)
abort = true
}
if abort {
return
}
if box == nil {
t.Fatalf("second argument to embedded.RegisterEmbeddedBox is not an embedded.EmbeddedBox: %#v", boxArg)
}
if box.Name != name {
t.Fatalf("first argument to embedded.RegisterEmbeddedBox is not the same as the name in the second argument: %v, %#v", name, boxArg)
}
boxes[name] = box
}
}
// Validate that all boxes are present.
if _, ok := boxes["foo"]; !ok {
t.Error("box \"foo\" not found")
}
for _, box := range boxes {
validateBox(t, box, sourceFiles)
}
}

204
vendor/github.com/GeertJohan/go.rice/rice/embed-syso.go generated vendored Normal file
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@ -0,0 +1,204 @@
package main
import (
"bytes"
"encoding/gob"
"fmt"
"go/build"
"io"
"io/ioutil"
"os"
"path/filepath"
"regexp"
"strings"
"text/template"
"github.com/GeertJohan/go.rice/embedded"
"github.com/akavel/rsrc/coff"
)
type sizedReader struct {
*bytes.Reader
}
func (s sizedReader) Size() int64 {
return int64(s.Len())
}
var tmplEmbeddedSysoHelper *template.Template
func init() {
var err error
tmplEmbeddedSysoHelper, err = template.New("embeddedSysoHelper").Parse(`package {{.Package}}
// ############# GENERATED CODE #####################
// ## This file was generated by the rice tool.
// ## Do not edit unless you know what you're doing.
// ##################################################
// extern char _bricebox_{{.Symname}}[], _ericebox_{{.Symname}};
// int get_{{.Symname}}_length() {
// return &_ericebox_{{.Symname}} - _bricebox_{{.Symname}};
// }
import "C"
import (
"bytes"
"encoding/gob"
"github.com/GeertJohan/go.rice/embedded"
"unsafe"
)
func init() {
ptr := unsafe.Pointer(&C._bricebox_{{.Symname}})
bts := C.GoBytes(ptr, C.get_{{.Symname}}_length())
embeddedBox := &embedded.EmbeddedBox{}
err := gob.NewDecoder(bytes.NewReader(bts)).Decode(embeddedBox)
if err != nil {
panic("error decoding embedded box: "+err.Error())
}
embeddedBox.Link()
embedded.RegisterEmbeddedBox(embeddedBox.Name, embeddedBox)
}`)
if err != nil {
panic("could not parse template embeddedSysoHelper: " + err.Error())
}
}
type embeddedSysoHelperData struct {
Package string
Symname string
}
func operationEmbedSyso(pkg *build.Package) {
regexpSynameReplacer := regexp.MustCompile(`[^a-z0-9_]`)
boxMap := findBoxes(pkg)
// notify user when no calls to rice.FindBox are made (is this an error and therefore os.Exit(1) ?
if len(boxMap) == 0 {
fmt.Println("no calls to rice.FindBox() found")
return
}
verbosef("\n")
for boxname := range boxMap {
// find path and filename for this box
boxPath := filepath.Join(pkg.Dir, boxname)
boxFilename := strings.Replace(boxname, "/", "-", -1)
boxFilename = strings.Replace(boxFilename, "..", "back", -1)
boxFilename = strings.Replace(boxFilename, ".", "-", -1)
// verbose info
verbosef("embedding box '%s'\n", boxname)
verbosef("\tto file %s\n", boxFilename)
// read box metadata
boxInfo, ierr := os.Stat(boxPath)
if ierr != nil {
fmt.Printf("Error: unable to access box at %s\n", boxPath)
os.Exit(1)
}
// create box datastructure (used by template)
box := &embedded.EmbeddedBox{
Name: boxname,
Time: boxInfo.ModTime(),
EmbedType: embedded.EmbedTypeSyso,
Files: make(map[string]*embedded.EmbeddedFile),
Dirs: make(map[string]*embedded.EmbeddedDir),
}
// fill box datastructure with file data
filepath.Walk(boxPath, func(path string, info os.FileInfo, err error) error {
if err != nil {
fmt.Printf("error walking box: %s\n", err)
os.Exit(1)
}
filename := strings.TrimPrefix(path, boxPath)
filename = strings.Replace(filename, "\\", "/", -1)
filename = strings.TrimPrefix(filename, "/")
if info.IsDir() {
embeddedDir := &embedded.EmbeddedDir{
Filename: filename,
DirModTime: info.ModTime(),
}
verbosef("\tincludes dir: '%s'\n", embeddedDir.Filename)
box.Dirs[embeddedDir.Filename] = embeddedDir
// add tree entry (skip for root, it'll create a recursion)
if embeddedDir.Filename != "" {
pathParts := strings.Split(embeddedDir.Filename, "/")
parentDir := box.Dirs[strings.Join(pathParts[:len(pathParts)-1], "/")]
parentDir.ChildDirs = append(parentDir.ChildDirs, embeddedDir)
}
} else {
embeddedFile := &embedded.EmbeddedFile{
Filename: filename,
FileModTime: info.ModTime(),
Content: "",
}
verbosef("\tincludes file: '%s'\n", embeddedFile.Filename)
contentBytes, err := ioutil.ReadFile(path)
if err != nil {
fmt.Printf("error reading file content while walking box: %s\n", err)
os.Exit(1)
}
embeddedFile.Content = string(contentBytes)
box.Files[embeddedFile.Filename] = embeddedFile
}
return nil
})
// encode embedded box to gob file
boxGobBuf := &bytes.Buffer{}
err := gob.NewEncoder(boxGobBuf).Encode(box)
if err != nil {
fmt.Printf("error encoding box to gob: %v\n", err)
os.Exit(1)
}
verbosef("gob-encoded embeddedBox is %d bytes large\n", boxGobBuf.Len())
// write coff
symname := regexpSynameReplacer.ReplaceAllString(boxname, "_")
createCoffSyso(boxname, symname, "386", boxGobBuf.Bytes())
createCoffSyso(boxname, symname, "amd64", boxGobBuf.Bytes())
// write go
sysoHelperData := embeddedSysoHelperData{
Package: pkg.Name,
Symname: symname,
}
fileSysoHelper, err := os.Create(boxFilename + ".rice-box.go")
if err != nil {
fmt.Printf("error creating syso helper: %v\n", err)
os.Exit(1)
}
err = tmplEmbeddedSysoHelper.Execute(fileSysoHelper, sysoHelperData)
if err != nil {
fmt.Printf("error executing tmplEmbeddedSysoHelper: %v\n", err)
os.Exit(1)
}
}
}
func createCoffSyso(boxFilename string, symname string, arch string, data []byte) {
boxCoff := coff.NewRDATA()
switch arch {
case "386":
case "amd64":
boxCoff.FileHeader.Machine = 0x8664
default:
panic("invalid arch")
}
boxCoff.AddData("_bricebox_"+symname, sizedReader{bytes.NewReader(data)})
boxCoff.AddData("_ericebox_"+symname, io.NewSectionReader(strings.NewReader("\000\000"), 0, 2)) // TODO: why? copied from rsrc, which copied it from as-generated
boxCoff.Freeze()
err := writeCoff(boxCoff, boxFilename+"_"+arch+".rice-box.syso")
if err != nil {
fmt.Printf("error writing %s coff/.syso: %v\n", arch, err)
os.Exit(1)
}
}

150
vendor/github.com/GeertJohan/go.rice/rice/find.go generated vendored Normal file
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@ -0,0 +1,150 @@
package main
import (
"fmt"
"go/ast"
"go/build"
"go/parser"
"go/token"
"os"
"path/filepath"
"strings"
)
func badArgument(fileset *token.FileSet, p token.Pos) {
pos := fileset.Position(p)
filename := pos.Filename
base, err := os.Getwd()
if err == nil {
rpath, perr := filepath.Rel(base, pos.Filename)
if perr == nil {
filename = rpath
}
}
msg := fmt.Sprintf("%s:%d: Error: found call to rice.FindBox, "+
"but argument must be a string literal.\n", filename, pos.Line)
fmt.Println(msg)
os.Exit(1)
}
func findBoxes(pkg *build.Package) map[string]bool {
// create map of boxes to embed
var boxMap = make(map[string]bool)
// create one list of files for this package
filenames := make([]string, 0, len(pkg.GoFiles)+len(pkg.CgoFiles))
filenames = append(filenames, pkg.GoFiles...)
filenames = append(filenames, pkg.CgoFiles...)
// loop over files, search for rice.FindBox(..) calls
for _, filename := range filenames {
// find full filepath
fullpath := filepath.Join(pkg.Dir, filename)
if strings.HasSuffix(filename, "rice-box.go") {
// Ignore *.rice-box.go files
verbosef("skipping file %q\n", fullpath)
continue
}
verbosef("scanning file %q\n", fullpath)
fset := token.NewFileSet()
f, err := parser.ParseFile(fset, fullpath, nil, 0)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
var riceIsImported bool
ricePkgName := "rice"
for _, imp := range f.Imports {
if strings.HasSuffix(imp.Path.Value, "go.rice\"") {
if imp.Name != nil {
ricePkgName = imp.Name.Name
}
riceIsImported = true
break
}
}
if !riceIsImported {
// Rice wasn't imported, so we won't find a box.
continue
}
if ricePkgName == "_" {
// Rice pkg is unnamed, so we won't find a box.
continue
}
// Inspect AST, looking for calls to (Must)?FindBox.
// First parameter of the func must be a basic literal.
// Identifiers won't be resolved.
var nextIdentIsBoxFunc bool
var nextBasicLitParamIsBoxName bool
var boxCall token.Pos
var variableToRemember string
var validVariablesForBoxes map[string]bool = make(map[string]bool)
ast.Inspect(f, func(node ast.Node) bool {
if node == nil {
return false
}
switch x := node.(type) {
// this case fixes the var := func() style assignments, not assignments to vars declared separately from the assignment.
case *ast.AssignStmt:
var assign = node.(*ast.AssignStmt)
name, found := assign.Lhs[0].(*ast.Ident)
if found {
variableToRemember = name.Name
composite, first := assign.Rhs[0].(*ast.CompositeLit)
if first {
riceSelector, second := composite.Type.(*ast.SelectorExpr)
if second {
callCorrect := riceSelector.Sel.Name == "Config"
packageName, third := riceSelector.X.(*ast.Ident)
if third && callCorrect && packageName.Name == ricePkgName {
validVariablesForBoxes[name.Name] = true
verbosef("\tfound variable, saving to scan for boxes: %q\n", name.Name)
}
}
}
}
case *ast.Ident:
if nextIdentIsBoxFunc || ricePkgName == "." {
nextIdentIsBoxFunc = false
if x.Name == "FindBox" || x.Name == "MustFindBox" {
nextBasicLitParamIsBoxName = true
boxCall = x.Pos()
}
} else {
if x.Name == ricePkgName || validVariablesForBoxes[x.Name] {
nextIdentIsBoxFunc = true
}
}
case *ast.BasicLit:
if nextBasicLitParamIsBoxName {
if x.Kind == token.STRING {
nextBasicLitParamIsBoxName = false
// trim "" or ``
name := x.Value[1 : len(x.Value)-1]
boxMap[name] = true
verbosef("\tfound box %q\n", name)
} else {
badArgument(fset, boxCall)
}
}
default:
if nextIdentIsBoxFunc {
nextIdentIsBoxFunc = false
}
if nextBasicLitParamIsBoxName {
badArgument(fset, boxCall)
}
}
return true
})
}
return boxMap
}

302
vendor/github.com/GeertJohan/go.rice/rice/find_test.go generated vendored Normal file
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@ -0,0 +1,302 @@
package main
import (
"fmt"
"go/build"
"io/ioutil"
"os"
"path/filepath"
"testing"
)
type sourceFile struct {
Name string
Contents []byte
}
func expectBoxes(expected []string, actual map[string]bool) error {
if len(expected) != len(actual) {
return fmt.Errorf("expected %v, got %v", expected, actual)
}
for _, box := range expected {
if _, ok := actual[box]; !ok {
return fmt.Errorf("expected %v, got %v", expected, actual)
}
}
return nil
}
func setUpTestPkg(pkgName string, files []sourceFile) (*build.Package, func(), error) {
temp, err := ioutil.TempDir("", "go.rice-test")
if err != nil {
return nil, func() {}, err
}
cleanup := func() {
os.RemoveAll(temp)
}
dir := filepath.Join(temp, pkgName)
if err := os.Mkdir(dir, 0770); err != nil {
return nil, cleanup, err
}
for _, f := range files {
fullPath := filepath.Join(dir, f.Name)
if err := os.MkdirAll(filepath.Dir(fullPath), 0770); err != nil {
return nil, cleanup, err
}
if err := ioutil.WriteFile(fullPath, f.Contents, 0660); err != nil {
return nil, cleanup, err
}
}
pkg, err := build.ImportDir(dir, 0)
return pkg, cleanup, err
}
func TestFindOneBox(t *testing.T) {
pkg, cleanup, err := setUpTestPkg("foobar", []sourceFile{
{
"boxes.go",
[]byte(`package main
import (
"github.com/GeertJohan/go.rice"
)
func main() {
rice.MustFindBox("foo")
}
`),
},
})
defer cleanup()
if err != nil {
t.Error(err)
return
}
expectedBoxes := []string{"foo"}
boxMap := findBoxes(pkg)
if err := expectBoxes(expectedBoxes, boxMap); err != nil {
t.Error(err)
}
}
func TestFindOneBoxViaVariable(t *testing.T) {
pkg, cleanup, err := setUpTestPkg("foobar", []sourceFile{
{
"boxes.go",
[]byte(`package main
import (
"github.com/GeertJohan/go.rice"
)
func main() {
conf := rice.Config{
LocateOrder: []rice.LocateMethod{rice.LocateEmbedded, rice.LocateAppended, rice.LocateFS},
}
conf.MustFindBox("foo")
}
`),
},
})
defer cleanup()
if err != nil {
t.Error(err)
return
}
expectedBoxes := []string{"foo"}
boxMap := findBoxes(pkg)
if err := expectBoxes(expectedBoxes, boxMap); err != nil {
t.Error(err)
}
}
func TestFindMultipleBoxes(t *testing.T) {
pkg, cleanup, err := setUpTestPkg("foobar", []sourceFile{
{
"boxes.go",
[]byte(`package main
import (
"github.com/GeertJohan/go.rice"
)
func main() {
rice.MustFindBox("foo")
rice.MustFindBox("bar")
}
`),
},
})
defer cleanup()
if err != nil {
t.Error(err)
return
}
expectedBoxes := []string{"foo", "bar"}
boxMap := findBoxes(pkg)
if err := expectBoxes(expectedBoxes, boxMap); err != nil {
t.Error(err)
}
}
func TestNoBoxFoundIfRiceNotImported(t *testing.T) {
pkg, cleanup, err := setUpTestPkg("foobar", []sourceFile{
{
"boxes.go",
[]byte(`package main
type fakerice struct {}
func (fr fakerice) FindBox(s string) {
}
func main() {
rice := fakerice{}
rice.FindBox("foo")
}
`),
},
})
defer cleanup()
if err != nil {
t.Error(err)
return
}
boxMap := findBoxes(pkg)
if _, ok := boxMap["foo"]; ok {
t.Errorf("Unexpected box %q was found", "foo")
}
}
func TestUnrelatedBoxesAreNotFound(t *testing.T) {
pkg, cleanup, err := setUpTestPkg("foobar", []sourceFile{
{
"boxes.go",
[]byte(`package foobar
import (
_ "github.com/GeertJohan/go.rice"
)
type fakerice struct {}
func (fr fakerice) FindBox(s string) {
}
func FindBox(s string) {
}
func LoadBoxes() {
rice := fakerice{}
rice.FindBox("foo")
FindBox("bar")
}
`),
},
})
defer cleanup()
if err != nil {
t.Error(err)
return
}
boxMap := findBoxes(pkg)
for _, box := range []string{"foo", "bar"} {
if _, ok := boxMap[box]; ok {
t.Errorf("Unexpected box %q was found", box)
}
}
}
func TestMixGoodAndBadBoxes(t *testing.T) {
pkg, cleanup, err := setUpTestPkg("foobar", []sourceFile{
{
"boxes1.go",
[]byte(`package foobar
import (
_ "github.com/GeertJohan/go.rice"
)
type fakerice struct {}
func (fr fakerice) FindBox(s string) {
}
func FindBox(s string) {
}
func LoadBoxes1() {
rice := fakerice{}
rice.FindBox("foo")
FindBox("bar")
}
`),
},
{
"boxes2.go",
[]byte(`package foobar
import (
noodles "github.com/GeertJohan/go.rice"
)
func LoadBoxes2() {
FindBox("baz")
noodles.FindBox("veggies")
}
`),
},
{
"boxes3.go",
[]byte(`package foobar
import (
"github.com/GeertJohan/go.rice"
)
func LoadBoxes3() {
rice.FindBox("fish")
}
`),
},
{
"boxes4.go",
[]byte(`package foobar
import (
. "github.com/GeertJohan/go.rice"
)
func LoadBoxes3() {
MustFindBox("chicken")
}
`),
},
})
defer cleanup()
if err != nil {
t.Error(err)
return
}
boxMap := findBoxes(pkg)
for _, box := range []string{"foo", "bar", "baz"} {
if _, ok := boxMap[box]; ok {
t.Errorf("Unexpected box %q was found", box)
}
}
for _, box := range []string{"veggies", "fish", "chicken"} {
if _, ok := boxMap[box]; !ok {
t.Errorf("Expected box %q not found", box)
}
}
}

80
vendor/github.com/GeertJohan/go.rice/rice/flags.go generated vendored Normal file
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@ -0,0 +1,80 @@
package main
import (
"fmt"
"go/build"
"os"
goflags "github.com/jessevdk/go-flags" // rename import to `goflags` (file scope) so we can use `var flags` (package scope)
)
// flags
var flags struct {
Verbose bool `long:"verbose" short:"v" description:"Show verbose debug information"`
ImportPaths []string `long:"import-path" short:"i" description:"Import path(s) to use. Using PWD when left empty. Specify multiple times for more import paths to append"`
Append struct {
Executable string `long:"exec" description:"Executable to append" required:"true"`
} `command:"append"`
EmbedGo struct{} `command:"embed-go" alias:"embed"`
EmbedSyso struct{} `command:"embed-syso"`
Clean struct{} `command:"clean"`
}
// flags parser
var flagsParser *goflags.Parser
// initFlags parses the given flags.
// when the user asks for help (-h or --help): the application exists with status 0
// when unexpected flags is given: the application exits with status 1
func parseArguments() {
// create flags parser in global var, for flagsParser.Active.Name (operation)
flagsParser = goflags.NewParser(&flags, goflags.Default)
// parse flags
args, err := flagsParser.Parse()
if err != nil {
// assert the err to be a flags.Error
flagError := err.(*goflags.Error)
if flagError.Type == goflags.ErrHelp {
// user asked for help on flags.
// program can exit successfully
os.Exit(0)
}
if flagError.Type == goflags.ErrUnknownFlag {
fmt.Println("Use --help to view available options.")
os.Exit(1)
}
if flagError.Type == goflags.ErrRequired {
os.Exit(1)
}
fmt.Printf("Error parsing flags: %s\n", err)
os.Exit(1)
}
// error on left-over arguments
if len(args) > 0 {
fmt.Printf("Unexpected arguments: %s\nUse --help to view available options.", args)
os.Exit(1)
}
// default ImportPath to pwd when not set
if len(flags.ImportPaths) == 0 {
pwd, err := os.Getwd()
if err != nil {
fmt.Printf("error getting pwd: %s\n", err)
os.Exit(1)
}
verbosef("using pwd as import path\n")
// find non-absolute path for this pwd
pkg, err := build.ImportDir(pwd, build.FindOnly)
if err != nil {
fmt.Printf("error using current directory as import path: %s\n", err)
os.Exit(1)
}
flags.ImportPaths = append(flags.ImportPaths, pkg.ImportPath)
verbosef("using import paths: %s\n", flags.ImportPaths)
return
}
}

14
vendor/github.com/GeertJohan/go.rice/rice/identifier.go generated vendored Normal file
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@ -0,0 +1,14 @@
package main
import (
"strconv"
"github.com/GeertJohan/go.incremental"
)
var identifierCount incremental.Uint64
func nextIdentifier() string {
num := identifierCount.Next()
return strconv.FormatUint(num, 36) // 0123456789abcdefghijklmnopqrstuvwxyz
}

68
vendor/github.com/GeertJohan/go.rice/rice/main.go generated vendored Normal file
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@ -0,0 +1,68 @@
package main
import (
"fmt"
"go/build"
"log"
"os"
)
func main() {
// parser arguments
parseArguments()
// find package for path
var pkgs []*build.Package
for _, importPath := range flags.ImportPaths {
pkg := pkgForPath(importPath)
pkgs = append(pkgs, pkg)
}
// switch on the operation to perform
switch flagsParser.Active.Name {
case "embed", "embed-go":
for _, pkg := range pkgs {
operationEmbedGo(pkg)
}
case "embed-syso":
log.Println("WARNING: embedding .syso is experimental..")
for _, pkg := range pkgs {
operationEmbedSyso(pkg)
}
case "append":
operationAppend(pkgs)
case "clean":
for _, pkg := range pkgs {
operationClean(pkg)
}
}
// all done
verbosef("\n")
verbosef("rice finished successfully\n")
}
// helper function to get *build.Package for given path
func pkgForPath(path string) *build.Package {
// get pwd for relative imports
pwd, err := os.Getwd()
if err != nil {
fmt.Printf("error getting pwd (required for relative imports): %s\n", err)
os.Exit(1)
}
// read full package information
pkg, err := build.Import(path, pwd, 0)
if err != nil {
fmt.Printf("error reading package: %s\n", err)
os.Exit(1)
}
return pkg
}
func verbosef(format string, stuff ...interface{}) {
if flags.Verbose {
log.Printf(format, stuff...)
}
}

98
vendor/github.com/GeertJohan/go.rice/rice/templates.go generated vendored Normal file
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@ -0,0 +1,98 @@
package main
import (
"fmt"
"os"
"text/template"
)
var tmplEmbeddedBox *template.Template
func init() {
var err error
// parse embedded box template
tmplEmbeddedBox, err = template.New("embeddedBox").Parse(`package {{.Package}}
import (
"github.com/GeertJohan/go.rice/embedded"
"time"
)
{{range .Boxes}}
func init() {
// define files
{{range .Files}}{{.Identifier}} := &embedded.EmbeddedFile{
Filename: {{.FileName | printf "%q"}},
FileModTime: time.Unix({{.ModTime}}, 0),
Content: string({{.Content | printf "%q"}}),
}
{{end}}
// define dirs
{{range .Dirs}}{{.Identifier}} := &embedded.EmbeddedDir{
Filename: {{.FileName | printf "%q"}},
DirModTime: time.Unix({{.ModTime}}, 0),
ChildFiles: []*embedded.EmbeddedFile{
{{range .ChildFiles}}{{.Identifier}}, // {{.FileName | printf "%q"}}
{{end}}
},
}
{{end}}
// link ChildDirs
{{range .Dirs}}{{.Identifier}}.ChildDirs = []*embedded.EmbeddedDir{
{{range .ChildDirs}}{{.Identifier}}, // {{.FileName | printf "%q"}}
{{end}}
}
{{end}}
// register embeddedBox
embedded.RegisterEmbeddedBox(` + "`" + `{{.BoxName}}` + "`" + `, &embedded.EmbeddedBox{
Name: ` + "`" + `{{.BoxName}}` + "`" + `,
Time: time.Unix({{.UnixNow}}, 0),
Dirs: map[string]*embedded.EmbeddedDir{
{{range .Dirs}}{{.FileName | printf "%q"}}: {{.Identifier}},
{{end}}
},
Files: map[string]*embedded.EmbeddedFile{
{{range .Files}}{{.FileName | printf "%q"}}: {{.Identifier}},
{{end}}
},
})
}
{{end}}`)
if err != nil {
fmt.Printf("error parsing embedded box template: %s\n", err)
os.Exit(-1)
}
}
type embedFileDataType struct {
Package string
Boxes []*boxDataType
}
type boxDataType struct {
BoxName string
UnixNow int64
Files []*fileDataType
Dirs map[string]*dirDataType
}
type fileDataType struct {
Identifier string
FileName string
Content []byte
ModTime int64
}
type dirDataType struct {
Identifier string
FileName string
Content []byte
ModTime int64
ChildDirs []*dirDataType
ChildFiles []*fileDataType
}

22
vendor/github.com/GeertJohan/go.rice/rice/util.go generated vendored Normal file
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package main
import (
"math/rand"
"time"
)
// randomString generates a pseudo-random alpha-numeric string with given length.
func randomString(length int) string {
rand.Seed(time.Now().UnixNano())
k := make([]rune, length)
for i := 0; i < length; i++ {
c := rand.Intn(35)
if c < 10 {
c += 48 // numbers (0-9) (0+48 == 48 == '0', 9+48 == 57 == '9')
} else {
c += 87 // lower case alphabets (a-z) (10+87 == 97 == 'a', 35+87 == 122 = 'z')
}
k[i] = rune(c)
}
return string(k)
}

42
vendor/github.com/GeertJohan/go.rice/rice/writecoff.go generated vendored Normal file
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package main
import (
"fmt"
"os"
"reflect"
"github.com/akavel/rsrc/binutil"
"github.com/akavel/rsrc/coff"
)
// copied from github.com/akavel/rsrc
// LICENSE: MIT
// Copyright 2013-2014 The rsrc Authors. (https://github.com/akavel/rsrc/blob/master/AUTHORS)
func writeCoff(coff *coff.Coff, fnameout string) error {
out, err := os.Create(fnameout)
if err != nil {
return err
}
defer out.Close()
w := binutil.Writer{W: out}
// write the resulting file to disk
binutil.Walk(coff, func(v reflect.Value, path string) error {
if binutil.Plain(v.Kind()) {
w.WriteLE(v.Interface())
return nil
}
vv, ok := v.Interface().(binutil.SizedReader)
if ok {
w.WriteFromSized(vv)
return binutil.WALK_SKIP
}
return nil
})
if w.Err != nil {
return fmt.Errorf("Error writing output file: %s", w.Err)
}
return nil
}

1
vendor/github.com/Xe/gopreload/.gitignore generated vendored Normal file
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*.so

19
vendor/github.com/Xe/gopreload/LICENSE generated vendored Normal file
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@ -0,0 +1,19 @@
Copyright (c) 2017 Christine Dodrill <me@christine.website>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

51
vendor/github.com/Xe/gopreload/README.md generated vendored Normal file
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gopreload
=========
An emulation of the linux libc `LD_PRELOAD` except for use with Go plugins for
the addition of instrumentation and debugging utilities.
## Pluginizer
`pluginizer` is a bit of glue that makes it easier to turn underscore imports
into plugins:
```console
$ go get github.com/Xe/gopreload/cmd/pluginizer
$ pluginizer -help
Usage of pluginizer:
-dest string
destination package to generate
-pkg string
package to underscore import
$ pluginizer -pkg github.com/lib/pq -dest github.com/Xe/gopreload/database/postgres
To build this plugin:
$ go build -buildmode plugin -o /path/to/output.so github.com/Xe/gopreload/database/postgres
```
### Database drivers
I have included plugin boilerplate autogenned versions of the sqlite, postgres
and mysql database drivers.
## Manhole
[`manhole`][manhole] is an example of debugging and introspection tooling that has
been useful when debugging past issues with long-running server processes.
## Security Implications
This package assumes that programs run using it are never started with environment
variables that are set by unauthenticated users. Any errors in loading the plugins
will be logged using the standard library logger `log` and ignored.
This has about the same security implications as [`LD_PRELOAD`][ld-preload] does in most
Linux distributions, but the risk is minimal compared to the massive benefit for
being able to have arbitrary background services all be able to be dug into using
the same tooling or being able to have metric submission be completely separated
from the backend metric creation. Common logging setup processes can be _always_
loaded, making the default logger settings into the correct settings.
---
[manhole]: https://github.com/Xe/gopreload/tree/master/manhole
[ld-preload]: https://rafalcieslak.wordpress.com/2013/04/02/dynamic-linker-tricks-using-ld_preload-to-cheat-inject-features-and-investigate-programs/

56
vendor/github.com/Xe/gopreload/cmd/pluginizer/main.go generated vendored Normal file
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package main
import (
"flag"
"fmt"
"log"
"os"
"path/filepath"
_ "github.com/Xe/gopreload"
)
var (
pkgName = flag.String("pkg", "", "package to underscore import")
destPkgName = flag.String("dest", "", "destination package to generate")
)
const codeTemplate = `//+build go1.8
package main
import _ "$PACKAGE_PATH"`
func main() {
flag.Parse()
if *pkgName == "" || *destPkgName == "" {
log.Fatal("must set -pkg and -dest")
}
srcDir := filepath.Join(os.Getenv("GOPATH"), "src", *destPkgName)
err := os.MkdirAll(srcDir, os.ModePerm)
if err != nil {
log.Fatal(err)
}
fout, err := os.Create(srcDir + "/main.go")
if err != nil {
log.Fatal(err)
}
defer fout.Close()
codeBody := os.Expand(codeTemplate, func(s string) string {
if s == "PACKAGE_PATH" {
return *pkgName
}
return "no idea man"
})
fmt.Fprintln(fout, codeBody)
fmt.Println("To build this plugin: ")
fmt.Println(" $ go build -buildmode plugin -o /path/to/output.so " + *destPkgName)
}

5
vendor/github.com/Xe/gopreload/database/mysql/main.go generated vendored Normal file
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//+build go1.8
package main
import _ "github.com/go-sql-driver/mysql"

5
vendor/github.com/Xe/gopreload/database/postgres/main.go generated vendored Normal file
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@ -0,0 +1,5 @@
//+build go1.8
package main
import _ "github.com/lib/pq"

5
vendor/github.com/Xe/gopreload/database/sqlite3/main.go generated vendored Normal file
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@ -0,0 +1,5 @@
//+build go1.8
package main
import _ "github.com/mattn/go-sqlite3"

56
vendor/github.com/Xe/gopreload/manhole/README.md generated vendored Normal file
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# manhole
An opinionated HTTP manhole into Go processes.
## Assumptions This Package Makes
- Make each server instance have a unique HTTP port that is randomized by default.
This makes it very hard to accidentally route this manhole to the outside world.
If more assurance is required I personally suggest using [yubikey totp][yktotp],
but do research.
- Application code does not touch [`http.DefaultServeMux`][default-servemux]'. This is so that
administative control rods can be dynamically flipped in the case they are
needed.
- [pprof][pprof] endpoints added to `http.DefaultServeMux`. This allows easy
access to [pprof runtime tracing][pprof-tracing] to debug issues on long-running
applications like HTTP services.
- Make the manhole slightly inconvenient to put into place in production. This
helps make sure that this tool remains a debugging tool and not a part of a
long-term production rollout.
## Usage
Compile this as a plugin:
```console
$ go get -d github.com/Xe/gopreload/manhole
$ go build -buildmode plugin -o manhole.so github.com/Xe/gopreload/manhole
```
Then add [`gopreload`][gopreload] to your application:
```go
// gopreload.go
package main
/*
This file is separate to make it very easy to both add into an application, but
also very easy to remove.
*/
import _ "github.com/Xe/gopreload"
```
And at runtime add the `manhole.so` file you created earlier to the target system
somehow and add the following environment variable to its run configuration:
```sh
GO_PRELOAD=/path/to/manhole.so
```
---
[pprof]: https://godoc.org/net/http/pprof
[default-servemux]: https://godoc.org/net/http#pkg-variables
[yktotp]: https://github.com/GeertJohan/yubigo
[gopreload]: https://github.com/Xe/gopreload

22
vendor/github.com/Xe/gopreload/manhole/server.go generated vendored Normal file
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package main
import (
"log"
"net"
"net/http"
_ "net/http/pprof"
"net/rpc"
)
func init() {
l, err := net.Listen("tcp", "127.0.0.2:0")
if err != nil {
log.Printf("manhole: cannot bind to 127.0.0.2:0: %v", err)
return
}
log.Printf("manhole: Now listening on http://%s", l.Addr())
rpc.HandleHTTP()
go http.Serve(l, nil)
}

55
vendor/github.com/Xe/gopreload/sample/main.go generated vendored Normal file
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@ -0,0 +1,55 @@
package main
import (
"fmt"
"math/rand"
"net/http"
"runtime"
"time"
_ "github.com/Xe/gopreload"
"github.com/Xe/ln"
)
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
spew()
ln.Log(ln.F{"action": "gc_spew", "who": r.RemoteAddr})
fmt.Fprintln(w, "done")
})
http.ListenAndServe(":9184", nil)
}
func makeBuffer() []byte {
return make([]byte, rand.Intn(5000000)+5000000)
}
func spew() {
pool := make([][]byte, 20)
var m runtime.MemStats
makes := 0
for _ = range make([]struct{}, 50) {
b := makeBuffer()
makes += 1
i := rand.Intn(len(pool))
pool[i] = b
time.Sleep(time.Millisecond * 250)
bytes := 0
for i := 0; i < len(pool); i++ {
if pool[i] != nil {
bytes += len(pool[i])
}
}
runtime.ReadMemStats(&m)
fmt.Printf("%d,%d,%d,%d,%d,%d\n", m.HeapSys, bytes, m.HeapAlloc,
m.HeapIdle, m.HeapReleased, makes)
}
}

36
vendor/github.com/Xe/gopreload/sample/runtimeStatLogs/main.go generated vendored Normal file
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package main
import (
"runtime"
"time"
"github.com/Xe/ln"
)
func init() {
ln.Log(ln.F{
"action": "started_up",
"every": "20_seconds",
"what": "gc_metrics",
})
go func() {
for {
time.Sleep(20 * time.Second)
gatherMetrics()
}
}()
}
func gatherMetrics() {
stats := &runtime.MemStats{}
runtime.ReadMemStats(stats)
ln.Log(ln.F{
"gc-collections": stats.NumGC,
"gc-stw-pause-total": stats.PauseTotalNs,
"live-object-count": stats.Mallocs - stats.Frees,
"heap-bytes": stats.Alloc,
"stack-bytes": stats.StackInuse,
})
}

17
vendor/github.com/Xe/jsonfeed/.travis.yml generated vendored Normal file
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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/
language: go
go:
- 1.8.1
before_install:
- go get -t -v ./...
script:
- go test -race -coverprofile=coverage.txt -covermode=atomic
after_success:
- bash <(curl -s https://codecov.io/bash)

363
vendor/github.com/Xe/jsonfeed/LICENSE generated vendored Normal file
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Mozilla Public License, version 2.0
1. Definitions
1.1. "Contributor"
means each individual or legal entity that creates, contributes to the
creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used by a
Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached the
notice in Exhibit A, the Executable Form of such Source Code Form, and
Modifications of such Source Code Form, in each case including portions
thereof.
1.5. "Incompatible With Secondary Licenses"
means
a. that the initial Contributor has attached the notice described in
Exhibit B to the Covered Software; or
b. that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the terms of
a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in a
separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible, whether
at the time of the initial grant or subsequently, any and all of the
rights conveyed by this License.
1.10. "Modifications"
means any of the following:
a. any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered Software; or
b. any new file in Source Code Form that contains any Covered Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the License,
by the making, using, selling, offering for sale, having made, import,
or transfer of either its Contributions or its Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU Lesser
General Public License, Version 2.1, the GNU Affero General Public
License, Version 3.0, or any later versions of those licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that controls, is
controlled by, or is under common control with You. For purposes of this
definition, "control" means (a) the power, direct or indirect, to cause
the direction or management of such entity, whether by contract or
otherwise, or (b) ownership of more than fifty percent (50%) of the
outstanding shares or beneficial ownership of such entity.
2. License Grants and Conditions
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
a. under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
b. under Patent Claims of such Contributor to make, use, sell, offer for
sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
a. for any code that a Contributor has removed from Covered Software; or
b. for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
c. under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights to
grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
Section 2.1.
3. Responsibilities
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
a. such Covered Software must also be made available in Source Code Form,
as described in Section 3.1, and You must inform recipients of the
Executable Form how they can obtain a copy of such Source Code Form by
reasonable means in a timely manner, at a charge no more than the cost
of distribution to the recipient; and
b. You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter the
recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty, or
limitations of liability) contained within the Source Code Form of the
Covered Software, except that You may alter any license notices to the
extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
If it is impossible for You to comply with any of the terms of this License
with respect to some or all of the Covered Software due to statute,
judicial order, or regulation then You must: (a) comply with the terms of
this License to the maximum extent possible; and (b) describe the
limitations and the code they affect. Such description must be placed in a
text file included with all distributions of the Covered Software under
this License. Except to the extent prohibited by statute or regulation,
such description must be sufficiently detailed for a recipient of ordinary
skill to be able to understand it.
5. Termination
5.1. The rights granted under this License will terminate automatically if You
fail to comply with any of its terms. However, if You become compliant,
then the rights granted under this License from a particular Contributor
are reinstated (a) provisionally, unless and until such Contributor
explicitly and finally terminates Your grants, and (b) on an ongoing
basis, if such Contributor fails to notify You of the non-compliance by
some reasonable means prior to 60 days after You have come back into
compliance. Moreover, Your grants from a particular Contributor are
reinstated on an ongoing basis if such Contributor notifies You of the
non-compliance by some reasonable means, this is the first time You have
received notice of non-compliance with this License from such
Contributor, and You become compliant prior to 30 days after Your receipt
of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
license agreements (excluding distributors and resellers) which have been
validly granted by You or Your distributors under this License prior to
termination shall survive termination.
6. Disclaimer of Warranty
Covered Software is provided under this License on an "as is" basis,
without warranty of any kind, either expressed, implied, or statutory,
including, without limitation, warranties that the Covered Software is free
of defects, merchantable, fit for a particular purpose or non-infringing.
The entire risk as to the quality and performance of the Covered Software
is with You. Should any Covered Software prove defective in any respect,
You (not any Contributor) assume the cost of any necessary servicing,
repair, or correction. This disclaimer of warranty constitutes an essential
part of this License. No use of any Covered Software is authorized under
this License except under this disclaimer.
7. Limitation of Liability
Under no circumstances and under no legal theory, whether tort (including
negligence), contract, or otherwise, shall any Contributor, or anyone who
distributes Covered Software as permitted above, be liable to You for any
direct, indirect, special, incidental, or consequential damages of any
character including, without limitation, damages for lost profits, loss of
goodwill, work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses, even if such party shall have been
informed of the possibility of such damages. This limitation of liability
shall not apply to liability for death or personal injury resulting from
such party's negligence to the extent applicable law prohibits such
limitation. Some jurisdictions do not allow the exclusion or limitation of
incidental or consequential damages, so this exclusion and limitation may
not apply to You.
8. Litigation
Any litigation relating to this License may be brought only in the courts
of a jurisdiction where the defendant maintains its principal place of
business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions. Nothing
in this Section shall prevent a party's ability to bring cross-claims or
counter-claims.
9. Miscellaneous
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides that
the language of a contract shall be construed against the drafter shall not
be used to construe this License against a Contributor.
10. Versions of the License
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses If You choose to distribute Source Code Form that is
Incompatible With Secondary Licenses under the terms of this version of
the License, the notice described in Exhibit B of this License must be
attached.
Exhibit A - Source Code Form License Notice
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular file,
then You may include the notice in a location (such as a LICENSE file in a
relevant directory) where a recipient would be likely to look for such a
notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
This Source Code Form is "Incompatible
With Secondary Licenses", as defined by
the Mozilla Public License, v. 2.0.

8
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@ -0,0 +1,8 @@
# JSONFeed - Go Package to parse JSON Feed streams
[![Build Status](https://travis-ci.org/st3fan/jsonfeed.svg?branch=master)](https://travis-ci.org/st3fan/jsonfeed) [![Go Report Card](https://goreportcard.com/badge/github.com/st3fan/jsonfeed)](https://goreportcard.com/report/github.com/st3fan/jsonfeed) [![codecov](https://codecov.io/gh/st3fan/jsonfeed/branch/master/graph/badge.svg)](https://codecov.io/gh/st3fan/jsonfeed)
*Stefan Arentz, May 2017*
Work in progress. Minimal package to parse JSON Feed streams. Please file feature requests.

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@ -2,10 +2,6 @@
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/
/*
Package jsonfeed is a set of types and convenience functions for reading and
parsing JSON Feed version 1 as defined here: https://jsonfeed.org/version/1
*/
package jsonfeed
import (
@ -14,224 +10,59 @@ import (
"time"
)
// CurrentVersion will point to the current specification of JSON feed
// that this package implements.
const CurrentVersion = "https://jsonfeed.org/version/1"
// Item is a single article or link in a JSON Feed.
type Item struct {
// ID is unique for that item for that feed over time. If an item
// is ever updated, the id should be unchanged. New items should
// never use a previously-used id. If an id is presented as a number
// or other type, a JSON Feed reader must coerce it to a string.
// Ideally, the id is the full URL of the resource described by the
// item, since URLs make great unique identifiers.
ID string `json:"id"`
// URL is the URL of the resource described by the item. It’s the
// permalink. This may be the same as the id — but should be present
// regardless.
URL string `json:"url,omitempty"`
// ExternalURL is the URL of a page elsewhere. This is especially
// useful for linkblogs. If url links to where you’re talking about
// a thing, then this links to the thing you’re talking about.
ExternalURL string `json:"external_url,omitempty"`
// Title (optional, string) is plain text. Microblog items in
// particular may omit titles.
Title string `json:"title,omitempty"`
// ContentHTML and ContentText are each optional strings — but one
// or both must be present. This is the HTML or plain text of the
// item. Important: the only place HTML is allowed in this format
// is in content_html. A Twitter-like service might use content_text,
// while a blog might use content_html. Use whichever makes sense
// for your resource. (It doesn’t even have to be the same for each
// item in a feed.)
ContentHTML string `json:"content_html,omitempty"`
ContentText string `json:"content_text,omitempty"`
// Summary is a plain text sentence or two describing the item.
// This might be presented in a timeline, for instance, where a
// detail view would display all of ContentHTML or ContentText.
Summary string `json:"summary,omitempty"`
// Image is the URL of the main image for the item. This image
// may also appear in the content_html — if so, it’s a hint to
// the feed reader that this is the main, featured image. Feed
// readers may use the image as a preview (probably resized as
// a thumbnail and placed in a timeline).
Image string `json:"image,omitempty"`
// BannerImage is the URL of an image to use as a banner. Some
// blogging systems (such as Medium) display a different banner
// image chosen to go with each post, but that image wouldn’t
// otherwise appear in the content_html. A feed reader with a
// detail view may choose to show this banner image at the top
// of the detail view, possibly with the title overlaid.
BannerImage string `json:"banner_image,omitempty"`
// DatePublished specifies the date of this Item's publication.
DatePublished time.Time `json:"date_published,omitempty"`
// DateModified specifies the date of this Item's last modification
// (if applicable)
DateModified time.Time `json:"date_modified,omitempty"`
// Author has the same structure as the top-level author. If not
// specified in an item, then the top-level author, if present,
// is the author of the item.
Author *Author `json:"author,omitempty"`
// Tags can have any plain text values you want. Tags tend to be
// just one word, but they may be anything. Note: they are not
// the equivalent of Twitter hashtags. Some blogging systems and
// other feed formats call these categories.
Tags []string `json:"tags,omitempty"`
// Attachments (optional, array) lists related resources. Podcasts,
// for instance, would include an attachment that’s an audio or
// video file.
Attachments []Attachment `json:"attachments,omitempty"`
ID string `json:"id"`
URL string `json:"url"`
ExternalURL string `json:"external_url"`
Title string `json:"title"`
ContentHTML string `json:"content_html"`
ContentText string `json:"content_text"`
Summary string `json:"summary"`
Image string `json:"image"`
BannerImage string `json:"banner_image"`
DatePublished time.Time `json:"date_published"`
DateModified time.Time `json:"date_modified"`
Author Author `json:"author"`
Tags []string `json:"tags"`
}
// Author specifies the feed author. The author object has several members.
// These are all optional, but if you provide an author object, then at
// least one is required.
type Author struct {
// Name is the author's name.
Name string `json:"name,omitempty"`
// URL is the URL of a site owned by the author. It could be a
// blog, micro-blog, Twitter account, and so on. Ideally the linked-to
// page provides a way to contact the author, but that’s not
// required. The URL could be a mailto: link, though we suspect
// that will be rare.
URL string `json:"url,omitempty"`
// Avatar is the URL for an image for the author. As with icon,
// it should be square and relatively large — such as 512 x 512 —
// and should use transparency where appropriate, since it may
// be rendered on a non-white background.
Avatar string `json:"avatar,omitempty"`
Name string `json:"name"`
URL string `json:"url"`
Avatar string `json:"avatar"`
}
// Hub describes endpoints that can be used to subscribe to real-time
// notifications from the publisher of this feed. Each object has a type
// and url, both of which are required.
type Hub struct {
Type string `json:"type"`
URL string `json:"url"`
}
// Attachment is a related resource to an Item. If the Feed describes a
// podcast, this would refer to the episodes of said podcast.
type Attachment struct {
// URL specifies the location of the attachment.
URL string `json:"url"`
// MIMEType specifies the type of the attachment, such as "audio/mpeg".
MIMEType string `json:"mime_type"`
// Title is a name for the attachment. Important: if there are multiple
// attachments, and two or more have the exact same title (when title
// is present), then they are considered as alternate representations
// of the same thing. In this way a podcaster, for instance, might
// provide an audio recording in different formats.
Title string `json:"title,omitifempty"`
// SizeInBytes specifies the attachment filesize in bytes.
SizeInBytes int64 `json:"size_in_bytes,omitempty"`
// DurationInSeconds specifies how long the attachment takes to listen
// to or watch.
DurationInSeconds int64 `json:"duration_in_seconds,omitempty"`
URL string `json:"url"`
MIMEType string `json:"mime_type"`
Title string `json:"title"`
SizeInBytes int64 `json:"size_in_bytes"`
DurationInSeconds int64 `json:"duration_in_seconds"`
}
// Feed is a list that may change over time, and the individual items in the
// list may change.
//
// Think of a blog or microblog, Twitter or Facebook timeline, set of commits
// to a repository, or even a server log. These are all lists, and each could
// be described by a Feed.
//
// A JSON Feed starts with some info at the top: it says where the Feed comes
// from, and may say who created it and so on.
type Feed struct {
// Version is the URL of the version of the format the Feed uses.
Version string `json:"version"`
// Title is the name of the Feed, which will often correspond to the
// name of the website (blog, for instance), though not necessarily.
Title string `json:"title"`
// HomePageURL is the URL of the resource that the Feed describes.
// This resource may or may not actually be a “home” page, but it
// should be an HTML page. If a Feed is published on the public web,
// this should be considered as required. But it may not make sense
// in the case of a file created on a desktop computer, when that
// file is not shared or is shared only privately.
//
// This field is strongly reccomended, but not required.
HomePageURL string `json:"home_page_url,omitempty"`
// FeedURL is the URL of the Feed, and serves as the unique identifier
// for the Feed. As with home_page_url, this should be considered
// required for Feeds on the public web.
//
// This field is strongly reccomended, but not required.
FeedURL string `json:"feed_url,omitempty"`
// Description provides more detail, beyond the title, on what the Feed
// is about. A Feed reader may display this text.
Description string `json:"description,omitempty"`
// UserComment is a description of the purpose of the Feed. This is for
// the use of people looking at the raw JSON, and should be ignored by
// Feed readers.
UserComment string `json:"user_comment,omitempty"`
// NextURL is the URL of a Feed that provides the next n items, where
// n is determined by the publisher. This allows for pagination, but
// with the expectation that reader software is not required to use it
// and probably won’t use it very often. next_url must not be the same
// as Feed_url, and it must not be the same as a previous next_url
// (to avoid infinite loops).
NextURL string `json:"next_url,omitempty"`
// Icon is the URL of an image for the Feed suitable to be used in a
// timeline, much the way an avatar might be used. It should be square
// and relatively large — such as 512 x 512 — so that it can be scaled-down
// and so that it can look good on retina displays. It should use transparency
// where appropriate, since it may be rendered on a non-white background.
Icon string `json:"icon,omitempty"`
// Favicon is the URL of an image for the Feed suitable to be used in a
// source list. It should be square and relatively small, but not smaller
// than 64 x 64 (so that it can look good on retina displays). As with icon,
// this image should use transparency where appropriate, since it may be
// rendered on a non-white background.
Favicon string `json:"favicon,omitempty"`
// Author specifies the Feed author.
Author Author `json:"author,omitempty"`
// Expired specifies if the Feed will never update again. A Feed for a
// temporary event, such as an instance of the Olympics, could expire.
// If the value is true, then it’s expired. Any other value, or the
// absence of expired, means the Feed may continue to update.
Expired bool `json:"expired,omitempty"`
// Hubs describes endpoints that can be used to subscribe to real-time
// notifications from the publisher of this Feed.
Hubs []Hub `json:"hubs,omitempty"`
// Items is the list of Items in this Feed.
Items []Item `json:"items"`
Version string `json:"version"`
Title string `json:"title"`
HomePageURL string `json:"home_page_url"`
FeedURL string `json:"feed_url"`
Description string `json:"description"`
UserComment string `json:"user_comment"`
NextURL string `json:"next_url"`
Icon string `json:"icon"`
Favicon string `json:"favicon"`
Author Author `json:"author"`
Expired bool `json:"expired"`
Hubs []Hub `json:"hubs"`
Items []Item `json:"items"`
}
// Parse reads a JSON feed object out of a reader.
func Parse(r io.Reader) (Feed, error) {
var feed Feed
decoder := json.NewDecoder(r)

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@ -0,0 +1,43 @@
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/
package jsonfeed_test
import (
"os"
"testing"
"time"
"github.com/st3fan/jsonfeed"
"github.com/stretchr/testify/assert"
)
func Test_ParseSimple(t *testing.T) {
r, err := os.Open("testdata/feed.json")
assert.NoError(t, err, "Could not open testdata/feed.json")
feed, err := jsonfeed.Parse(r)
assert.NoError(t, err, "Could not parse testdata/feed.json")
assert.Equal(t, "https://jsonfeed.org/version/1", feed.Version)
assert.Equal(t, "JSON Feed", feed.Title)
assert.Equal(t, "JSON Feed is a ...", feed.Description)
assert.Equal(t, "https://jsonfeed.org/", feed.HomePageURL)
assert.Equal(t, "https://jsonfeed.org/feed.json", feed.FeedURL)
assert.Equal(t, "This feed allows ...", feed.UserComment)
assert.Equal(t, "https://jsonfeed.org/graphics/icon.png", feed.Favicon)
assert.Equal(t, "Brent Simmons and Manton Reece", feed.Author.Name)
assert.Equal(t, 1, len(feed.Items))
assert.Equal(t, "https://jsonfeed.org/2017/05/17/announcing_json_feed", feed.Items[0].ID)
assert.Equal(t, "https://jsonfeed.org/2017/05/17/announcing_json_feed", feed.Items[0].URL)
assert.Equal(t, "Announcing JSON Feed", feed.Items[0].Title)
assert.Equal(t, "<p>We ...", feed.Items[0].ContentHTML)
datePublished, err := time.Parse("2006-01-02T15:04:05-07:00", "2017-05-17T08:02:12-07:00")
assert.NoError(t, err, "Could not parse timestamp")
assert.Equal(t, datePublished, feed.Items[0].DatePublished)
}

21
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@ -0,0 +1,21 @@
{
"version": "https://jsonfeed.org/version/1",
"title": "JSON Feed",
"description": "JSON Feed is a ...",
"home_page_url": "https://jsonfeed.org/",
"feed_url": "https://jsonfeed.org/feed.json",
"user_comment": "This feed allows ...",
"favicon": "https://jsonfeed.org/graphics/icon.png",
"author": {
"name": "Brent Simmons and Manton Reece"
},
"items": [
{
"id": "https://jsonfeed.org/2017/05/17/announcing_json_feed",
"url": "https://jsonfeed.org/2017/05/17/announcing_json_feed",
"title": "Announcing JSON Feed",
"content_html": "<p>We ...",
"date_published": "2017-05-17T08:02:12-07:00"
}
]
}

25
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@ -0,0 +1,25 @@
Copyright (c) 2015, Andrew Gwozdziewycz
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

29
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@ -0,0 +1,29 @@
# ln: The Natural Logger for Go
`ln` provides a simple interface to logging, and metrics, and
obviates the need to utilize purpose built metrics packages, like
`go-metrics` for simple use cases.
The design of `ln` centers around the idea of key-value pairs, which
can be interpreted on the fly, but "Filters" to do things such as
aggregated metrics, and report said metrics to, say Librato, or
statsd.
"Filters" are like WSGI, or Rack Middleware. They are run "top down"
and can abort an emitted log's output at any time, or continue to let
it through the chain. However, the interface is slightly different
than that. Rather than encapsulating the chain with partial function
application, we utilize a simpler method, namely, each plugin defines
an `Apply` function, which takes as an argument the log event, and
performs the work of the plugin, only if the Plugin "Applies" to this
log event.
If `Apply` returns `false`, the iteration through the rest of the
filters is aborted, and the log is dropped from further processing.
## Current Status: Initial Development / Concept
## Copyright
(c) 2015, Andrew Gwozdziewycz, BSD Licensed. See LICENSE for more
info.

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vendor/github.com/Xe/ln/action.go generated vendored Normal file
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@ -0,0 +1,11 @@
package ln
// Action is a convenience helper for logging the "action" being performed as
// part of a log line.
//
// It is a convenience wrapper for the following:
//
// ln.Log(ctx, fer, f, ln.Action("writing frozberry sales reports to database"))
func Action(act string) Fer {
return F{"action": act}
}

38
vendor/github.com/Xe/ln/context.go generated vendored Normal file
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@ -0,0 +1,38 @@
package ln
import (
"context"
)
type ctxKey int
const (
fKey = iota
)
// WithF stores or appends a given F instance into a context.
func WithF(ctx context.Context, f F) context.Context {
pf, ok := FFromContext(ctx)
if !ok {
return context.WithValue(ctx, fKey, f)
}
pf.Extend(f)
return context.WithValue(ctx, fKey, pf)
}
// FFromContext fetches the `F` out of the context if it exists.
func FFromContext(ctx context.Context) (F, bool) {
fvp := ctx.Value(fKey)
if fvp == nil {
return nil, false
}
f, ok := fvp.(F)
if !ok {
return nil, false
}
return f, true
}

25
vendor/github.com/Xe/ln/doc.go generated vendored Normal file
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@ -0,0 +1,25 @@
/*
Package ln is the Natural Logger for Go
`ln` provides a simple interface to logging, and metrics, and
obviates the need to utilize purpose built metrics packages, like
`go-metrics` for simple use cases.
The design of `ln` centers around the idea of key-value pairs, which
can be interpreted on the fly, but "Filters" to do things such as
aggregated metrics, and report said metrics to, say Librato, or
statsd.
"Filters" are like WSGI, or Rack Middleware. They are run "top down"
and can abort an emitted log's output at any time, or continue to let
it through the chain. However, the interface is slightly different
than that. Rather than encapsulating the chain with partial function
application, we utilize a simpler method, namely, each plugin defines
an `Apply` function, which takes as an argument the log event, and
performs the work of the plugin, only if the Plugin "Applies" to this
log event.
If `Apply` returns `false`, the iteration through the rest of the
filters is aborted, and the log is dropped from further processing.
*/
package ln

7
vendor/github.com/Xe/ln/ex/doc.go generated vendored Normal file
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@ -0,0 +1,7 @@
/*
Package ex is a set of extensions and middleware for ln.
This package will (inevitably) have a lot of third-party dependencies and
as such might be broken apart into other packages in the future.
*/
package ex

68
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@ -0,0 +1,68 @@
package ex
import (
"context"
"log"
"github.com/Xe/ln"
"golang.org/x/net/trace"
)
type goEventLogger struct {
ev trace.EventLog
}
// NewGoEventLogger will log ln information to a given trace.EventLog instance.
func NewGoEventLogger(ev trace.EventLog) ln.Filter {
return &goEventLogger{ev: ev}
}
func (gel *goEventLogger) Apply(ctx context.Context, e ln.Event) bool {
data, err := ln.DefaultFormatter.Format(ctx, e)
if err != nil {
log.Printf("wtf: error in log formatting: %v", err)
return false
}
if everr := e.Data["err"]; everr != nil {
gel.ev.Errorf("%s", string(data))
return true
}
gel.ev.Printf("%s", string(data))
return true
}
func (gel *goEventLogger) Close() { gel.ev.Finish() }
func (gel *goEventLogger) Run() {}
type sst string
func (s sst) String() string { return string(s) }
func goTraceLogger(ctx context.Context, e ln.Event) bool {
sp, ok := trace.FromContext(ctx)
if !ok {
return true // no trace in context
}
data, err := ln.DefaultFormatter.Format(ctx, e)
if err != nil {
log.Printf("wtf: error in log formatting: %v", err)
return false
}
if everr := e.Data["err"]; everr != nil {
sp.SetError()
}
sp.LazyLog(sst(string(data)), false)
return true
}
// NewGoTraceLogger will log ln information to a golang.org/x/net/trace.Trace
// if it is present in the context of ln calls.
func NewGoTraceLogger() ln.Filter {
return ln.FilterFunc(goTraceLogger)
}

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@ -0,0 +1,36 @@
package ex
import (
"net"
"net/http"
"time"
"github.com/Xe/ln"
)
func HTTPLog(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
host, _, _ := net.SplitHostPort(r.RemoteAddr)
f := ln.F{
"remote_ip": host,
"x_forwarded_for": r.Header.Get("X-Forwarded-For"),
"path": r.URL.Path,
}
ctx := ln.WithF(r.Context(), f)
st := time.Now()
next.ServeHTTP(w, r.WithContext(ctx))
af := time.Now()
f["request_duration"] = af.Sub(st)
ws, ok := w.(interface {
Status() int
})
if ok {
f["status"] = ws.Status()
}
ln.Log(r.Context(), f)
})
}

25
vendor/github.com/Xe/ln/ex/l2met.go generated vendored Normal file
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@ -0,0 +1,25 @@
package ex
import (
"time"
"github.com/Xe/ln"
)
// This file deals with formatting of [l2met] style metrics.
// [l2met]: https://r.32k.io/l2met-introduction
// Counter formats a value as a metrics counter.
func Counter(name string, value int) ln.Fer {
return ln.F{"count#" + name: value}
}
// Gauge formats a value as a metrics gauge.
func Gauge(name string, value int) ln.Fer {
return ln.F{"gauge#" + name: value}
}
// Measure formats a value as a metrics measure.
func Measure(name string, ts time.Time) ln.Fer {
return ln.F{"measure#" + name: time.Since(ts)}
}

51
vendor/github.com/Xe/ln/example/http.go generated vendored Normal file
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@ -0,0 +1,51 @@
// +build ignore
package main
import (
"context"
"flag"
"net/http"
"time"
"github.com/Xe/ln"
"github.com/Xe/ln/ex"
"github.com/facebookgo/flagenv"
"golang.org/x/net/trace"
)
var (
port = flag.String("port", "2145", "http port to listen on")
tracingFamily = flag.String("trace-family", "ln example", "tracing family to use for x/net/trace")
)
func main() {
flagenv.Parse()
flag.Parse()
ln.DefaultLogger.Filters = append(ln.DefaultLogger.Filters, ex.NewGoTraceLogger())
http.HandleFunc("/", handleIndex)
http.ListenAndServe(":"+*port, middlewareSpan(ex.HTTPLog(http.DefaultServeMux)))
}
func middlewareSpan(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
sp := trace.New(*tracingFamily, "HTTP request")
defer sp.Finish()
ctx, cancel := context.WithTimeout(r.Context(), 30*time.Second)
defer cancel()
ctx = trace.NewContext(ctx, sp)
next.ServeHTTP(w, r.WithContext(ctx))
})
}
func handleIndex(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
ln.Log(ctx, ln.Action("index"), ln.F{"there_is": "no_danger"})
http.Error(w, "There is no danger citizen", http.StatusOK)
}

15
vendor/github.com/Xe/ln/filter.go generated vendored
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@ -1,23 +1,24 @@
package ln
import (
"context"
"io"
"sync"
)
// Filter interface for defining chain filters
type Filter interface {
Apply(Event) bool
Apply(ctx context.Context, e Event) bool
Run()
Close()
}
// FilterFunc allows simple functions to implement the Filter interface
type FilterFunc func(e Event) bool
type FilterFunc func(ctx context.Context, e Event) bool
// Apply implements the Filter interface
func (ff FilterFunc) Apply(e Event) bool {
return ff(e)
func (ff FilterFunc) Apply(ctx context.Context, e Event) bool {
return ff(ctx, e)
}
// Run implements the Filter interface
@ -45,8 +46,8 @@ func NewWriterFilter(out io.Writer, format Formatter) *WriterFilter {
}
// Apply implements the Filter interface
func (w *WriterFilter) Apply(e Event) bool {
output, err := w.Formatter.Format(e)
func (w *WriterFilter) Apply(ctx context.Context, e Event) bool {
output, err := w.Formatter.Format(ctx, e)
if err == nil {
w.Lock()
w.Out.Write(output)
@ -63,4 +64,4 @@ func (w *WriterFilter) Run() {}
func (w *WriterFilter) Close() {}
// NilFilter is safe to return as a Filter, but does nothing
var NilFilter = FilterFunc(func(e Event) bool { return true })
var NilFilter = FilterFunc(func(_ context.Context, e Event) bool { return true })

5
vendor/github.com/Xe/ln/formatter.go generated vendored
View File

@ -2,6 +2,7 @@ package ln
import (
"bytes"
"context"
"fmt"
"time"
)
@ -13,7 +14,7 @@ var (
// Formatter defines the formatting of events
type Formatter interface {
Format(Event) ([]byte, error)
Format(ctx context.Context, e Event) ([]byte, error)
}
// DefaultFormatter is the default way in which to format events
@ -36,7 +37,7 @@ func NewTextFormatter() Formatter {
}
// Format implements the Formatter interface
func (t *TextFormatter) Format(e Event) ([]byte, error) {
func (t *TextFormatter) Format(_ context.Context, e Event) ([]byte, error) {
var writer bytes.Buffer
writer.WriteString("time=\"")

95
vendor/github.com/Xe/ln/logger.go generated vendored
View File

@ -1,7 +1,7 @@
package ln
import (
"fmt"
"context"
"os"
"time"
@ -30,14 +30,28 @@ func init() {
DefaultLogger = &Logger{
Filters: defaultFilters,
}
}
// F is a key-value mapping for structured data.
type F map[string]interface{}
// Extend concatentates one F with one or many Fer instances.
func (f F) Extend(other ...Fer) {
for _, ff := range other {
for k, v := range ff.F() {
f[k] = v
}
}
}
// F makes F an Fer
func (f F) F() F {
return f
}
// Fer allows any type to add fields to the structured logging key->value pairs.
type Fer interface {
F() map[string]interface{}
F() F
}
// Event represents an event
@ -48,8 +62,7 @@ type Event struct {
}
// Log is the generic logging method.
func (l *Logger) Log(xs ...interface{}) {
var bits []interface{}
func (l *Logger) Log(ctx context.Context, xs ...Fer) {
event := Event{Time: time.Now()}
addF := func(bf F) {
@ -62,18 +75,14 @@ func (l *Logger) Log(xs ...interface{}) {
}
}
// Assemble the event
for _, b := range xs {
if bf, ok := b.(F); ok {
addF(bf)
} else if fer, ok := b.(Fer); ok {
addF(F(fer.F()))
} else {
bits = append(bits, b)
}
for _, f := range xs {
addF(f.F())
}
event.Message = fmt.Sprint(bits...)
ctxf, ok := FFromContext(ctx)
if ok {
addF(ctxf)
}
if os.Getenv("LN_DEBUG_ALL_EVENTS") == "1" {
frame := callersFrame()
@ -85,19 +94,19 @@ func (l *Logger) Log(xs ...interface{}) {
event.Data["_filename"] = frame.filename
}
l.filter(event)
l.filter(ctx, event)
}
func (l *Logger) filter(e Event) {
func (l *Logger) filter(ctx context.Context, e Event) {
for _, f := range l.Filters {
if !f.Apply(e) {
if !f.Apply(ctx, e) {
return
}
}
}
// Error logs an error and information about the context of said error.
func (l *Logger) Error(err error, xs ...interface{}) {
func (l *Logger) Error(ctx context.Context, err error, xs ...Fer) {
data := F{}
frame := callersFrame()
@ -113,12 +122,37 @@ func (l *Logger) Error(err error, xs ...interface{}) {
xs = append(xs, data)
l.Log(xs...)
l.Log(ctx, xs...)
}
// Fatal logs this set of values, then exits with status code 1.
func (l *Logger) Fatal(xs ...interface{}) {
l.Log(xs...)
func (l *Logger) Fatal(ctx context.Context, xs ...Fer) {
xs = append(xs, F{"fatal": true})
l.Log(ctx, xs...)
os.Exit(1)
}
// FatalErr combines Fatal and Error.
func (l *Logger) FatalErr(ctx context.Context, err error, xs ...Fer) {
xs = append(xs, F{"fatal": true})
data := F{}
frame := callersFrame()
data["_lineno"] = frame.lineno
data["_function"] = frame.function
data["_filename"] = frame.filename
data["err"] = err
cause := errors.Cause(err)
if cause != nil {
data["cause"] = cause.Error()
}
xs = append(xs, data)
l.Log(ctx, xs...)
os.Exit(1)
}
@ -126,16 +160,21 @@ func (l *Logger) Fatal(xs ...interface{}) {
// Default Implementation
// Log is the generic logging method.
func Log(xs ...interface{}) {
DefaultLogger.Log(xs...)
func Log(ctx context.Context, xs ...Fer) {
DefaultLogger.Log(ctx, xs...)
}
// Error logs an error and information about the context of said error.
func Error(err error, xs ...interface{}) {
DefaultLogger.Error(err, xs...)
func Error(ctx context.Context, err error, xs ...Fer) {
DefaultLogger.Error(ctx, err, xs...)
}
// Fatal logs this set of values, then exits with status code 1.
func Fatal(xs ...interface{}) {
DefaultLogger.Fatal(xs...)
func Fatal(ctx context.Context, xs ...Fer) {
DefaultLogger.Fatal(ctx, xs...)
}
// FatalErr combines Fatal and Error.
func FatalErr(ctx context.Context, err error, xs ...Fer) {
DefaultLogger.FatalErr(ctx, err, xs...)
}

111
vendor/github.com/Xe/ln/logger_test.go generated vendored Normal file
View File

@ -0,0 +1,111 @@
package ln
import (
"bytes"
"context"
"fmt"
"testing"
"time"
)
var ctx context.Context
func setup(t *testing.T) (*bytes.Buffer, func()) {
ctx = context.Background()
out := bytes.Buffer{}
oldFilters := DefaultLogger.Filters
DefaultLogger.Filters = []Filter{NewWriterFilter(&out, nil)}
return &out, func() {
DefaultLogger.Filters = oldFilters
}
}
func TestSimpleError(t *testing.T) {
out, teardown := setup(t)
defer teardown()
Log(ctx, F{"err": fmt.Errorf("This is an Error!!!")}, F{"msg": "fooey", "bar": "foo"})
data := []string{
`err="This is an Error!!!"`,
`fooey`,
`bar=foo`,
}
for _, line := range data {
if !bytes.Contains(out.Bytes(), []byte(line)) {
t.Fatalf("Bytes: %s not in %s", line, out.Bytes())
}
}
}
func TestTimeConversion(t *testing.T) {
out, teardown := setup(t)
defer teardown()
var zeroTime time.Time
Log(ctx, F{"zero": zeroTime})
data := []string{
`zero=0001-01-01T00:00:00Z`,
}
for _, line := range data {
if !bytes.Contains(out.Bytes(), []byte(line)) {
t.Fatalf("Bytes: %s not in %s", line, out.Bytes())
}
}
}
func TestDebug(t *testing.T) {
out, teardown := setup(t)
defer teardown()
// set priority to Debug
Error(ctx, fmt.Errorf("This is an Error!!!"), F{})
data := []string{
`err="This is an Error!!!"`,
`_lineno=`,
`_function=ln.TestDebug`,
`_filename=github.com/Xe/ln/logger_test.go`,
`cause="This is an Error!!!"`,
}
for _, line := range data {
if !bytes.Contains(out.Bytes(), []byte(line)) {
t.Fatalf("Bytes: %s not in %s", line, out.Bytes())
}
}
}
func TestFer(t *testing.T) {
out, teardown := setup(t)
defer teardown()
underTest := foobar{Foo: 1, Bar: "quux"}
Log(ctx, underTest)
data := []string{
`foo=1`,
`bar=quux`,
}
for _, line := range data {
if !bytes.Contains(out.Bytes(), []byte(line)) {
t.Fatalf("Bytes: %s not in %s", line, out.Bytes())
}
}
}
type foobar struct {
Foo int
Bar string
}
func (f foobar) F() F {
return F{
"foo": f.Foo,
"bar": f.Bar,
}
}

21
vendor/github.com/daaku/go.zipexe/license generated vendored Normal file
View File

@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright © 2012-2015 Carlos Castillo
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the “Software”), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

5
vendor/github.com/daaku/go.zipexe/readme.md generated vendored Normal file
View File

@ -0,0 +1,5 @@
go.zipexe
=========
This module was taken as-is from https://github.com/cookieo9/resources-go.
Documentation: https://godoc.org/github.com/daaku/go.zipexe

15
vendor/github.com/google/gops/.circleci/config.yml generated vendored Normal file
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@ -0,0 +1,15 @@
# Golang CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-go/ for more details
version: 2
jobs:
build:
docker:
- image: circleci/golang:1.9
working_directory: /go/src/github.com/google/gops
steps:
- checkout
# specify any bash command here prefixed with `run: `
- run: go test -v ./...

33
vendor/github.com/google/gops/Gopkg.lock generated vendored Normal file
View File

@ -0,0 +1,33 @@
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
branch = "master"
name = "github.com/kardianos/osext"
packages = ["."]
revision = "ae77be60afb1dcacde03767a8c37337fad28ac14"
[[projects]]
branch = "master"
name = "github.com/keybase/go-ps"
packages = [".","darwincgo"]
revision = "668c8856d9992f97248b3177d45743d2cc1068db"
[[projects]]
branch = "master"
name = "golang.org/x/arch"
packages = ["arm/armasm","ppc64/ppc64asm","x86/x86asm"]
revision = "f185940480d2c897e1ca8cf2f1be122e1258341b"
[[projects]]
name = "rsc.io/goversion"
packages = ["version"]
revision = "84cd9d26d7efce780a7aaafd0944961371da741f"
version = "v1.0.0"
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "4b494828d559e89fc1fe70b9bfdd0f5c8ad62ee16258a3b2bcf1028c140faa32"
solver-name = "gps-cdcl"
solver-version = 1

34
vendor/github.com/google/gops/Gopkg.toml generated vendored Normal file
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@ -0,0 +1,34 @@
# Gopkg.toml example
#
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
# for detailed Gopkg.toml documentation.
#
# required = ["github.com/user/thing/cmd/thing"]
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
#
# [[constraint]]
# name = "github.com/user/project"
# version = "1.0.0"
#
# [[constraint]]
# name = "github.com/user/project2"
# branch = "dev"
# source = "github.com/myfork/project2"
#
# [[override]]
# name = "github.com/x/y"
# version = "2.4.0"
[[constraint]]
branch = "master"
name = "github.com/kardianos/osext"
[[constraint]]
branch = "master"
name = "github.com/keybase/go-ps"
[[constraint]]
branch = "master"
name = "golang.org/x/arch"

27
vendor/github.com/google/gops/LICENSE generated vendored Normal file
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@ -0,0 +1,27 @@
Copyright (c) 2016 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

150
vendor/github.com/google/gops/README.md generated vendored Normal file
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@ -0,0 +1,150 @@
# gops
[![Build status](https://circleci.com/gh/google/gops/tree/master.svg?style=shield&circle-token=2637dc1e57d5407ae250480a86a2e553a7d20482)](https://circleci.com/gh/google/gops)
[![GoDoc](https://godoc.org/github.com/google/gops/agent?status.svg)](https://godoc.org/github.com/google/gops/agent)
gops is a command to list and diagnose Go processes currently running on your system.
```
$ gops
983 uplink-soecks (/usr/local/bin/uplink-soecks)
52697 gops (/Users/jbd/bin/gops)
4132* foops (/Users/jbd/bin/foops)
51130 gocode (/Users/jbd/bin/gocode)
```
## Installation
```
$ go get -u github.com/google/gops
```
## Diagnostics
For processes that starts the diagnostics agent, gops can report
additional information such as the current stack trace, Go version, memory
stats, etc.
In order to start the diagnostics agent, see the [hello example](https://github.com/google/gops/blob/master/examples/hello/main.go).
``` go
package main
import (
"log"
"time"
"github.com/google/gops/agent"
)
func main() {
if err := agent.Listen(nil); err != nil {
log.Fatal(err)
}
time.Sleep(time.Hour)
}
```
### Manual
It is possible to use gops tool both in local and remote mode.
Local mode requires that you start the target binary as the same user that runs gops binary.
To use gops in a remote mode you need to know target's agent address.
In Local mode use process's PID as a target; in Remote mode target is a `host:port` combination.
#### 0. Listing all processes running locally
To print all go processes, run `gops` without arguments:
```sh
$ gops
983 uplink-soecks (/usr/local/bin/uplink-soecks)
52697 gops (/Users/jbd/bin/gops)
4132* foops (/Users/jbd/bin/foops)
51130 gocode (/Users/jbd/bin/gocode)
```
Note that processes running the agent are marked with `*` next to the PID (e.g. `4132*`).
#### $ gops stack (\<pid\>|\<addr\>)
In order to print the current stack trace from a target program, run the following command:
```sh
$ gops stack (<pid>|<addr>)
gops stack 85709
goroutine 8 [running]:
runtime/pprof.writeGoroutineStacks(0x13c7bc0, 0xc42000e008, 0xc420ec8520, 0xc420ec8520)
/Users/jbd/go/src/runtime/pprof/pprof.go:603 +0x79
runtime/pprof.writeGoroutine(0x13c7bc0, 0xc42000e008, 0x2, 0xc428f1c048, 0xc420ec8608)
/Users/jbd/go/src/runtime/pprof/pprof.go:592 +0x44
runtime/pprof.(*Profile).WriteTo(0x13eeda0, 0x13c7bc0, 0xc42000e008, 0x2, 0xc42000e008, 0x0)
/Users/jbd/go/src/runtime/pprof/pprof.go:302 +0x3b5
github.com/google/gops/agent.handle(0x13cd560, 0xc42000e008, 0xc420186000, 0x1, 0x1, 0x0, 0x0)
/Users/jbd/src/github.com/google/gops/agent/agent.go:150 +0x1b3
github.com/google/gops/agent.listen()
/Users/jbd/src/github.com/google/gops/agent/agent.go:113 +0x2b2
created by github.com/google/gops/agent.Listen
/Users/jbd/src/github.com/google/gops/agent/agent.go:94 +0x480
# ...
```
#### $ gops memstats (\<pid\>|\<addr\>)
To print the current memory stats, run the following command:
```sh
$ gops memstats (<pid>|<addr>)
```
#### $ gops gc (\<pid\>|\<addr\>)
If you want to force run garbage collection on the target program, run `gc`.
It will block until the GC is completed.
#### $ gops version (\<pid\>|\<addr\>)
gops reports the Go version the target program is built with, if you run the following:
```sh
$ gops version (<pid>|<addr>)
devel +6a3c6c0 Sat Jan 14 05:57:07 2017 +0000
```
#### $ gops stats (\<pid\>|\<addr\>)
To print the runtime statistics such as number of goroutines and `GOMAXPROCS`.
#### Profiling
##### Pprof
gops supports CPU and heap pprof profiles. After reading either heap or CPU profile,
it shells out to the `go tool pprof` and let you interatively examine the profiles.
To enter the CPU profile, run:
```sh
$ gops pprof-cpu (<pid>|<addr>)
```
To enter the heap profile, run:
```sh
$ gops pprof-heap (<pid>|<addr>)
```
##### Execution trace
gops allows you to start the runtime tracer for 5 seconds and examine the results.
```sh
$ gops trace (<pid>|<addr>)
```

67
vendor/github.com/google/gops/agent/agent_test.go generated vendored Normal file
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@ -0,0 +1,67 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package agent
import (
"os"
"testing"
)
func TestListen(t *testing.T) {
err := Listen(nil)
if err != nil {
t.Fatal(err)
}
Close()
}
func TestAgentClose(t *testing.T) {
err := Listen(nil)
if err != nil {
t.Fatal(err)
}
Close()
_, err = os.Stat(portfile)
if !os.IsNotExist(err) {
t.Fatalf("portfile = %q doesn't exist; err = %v", portfile, err)
}
if portfile != "" {
t.Fatalf("got = %q; want empty portfile", portfile)
}
}
func TestAgentListenMultipleClose(t *testing.T) {
err := Listen(nil)
if err != nil {
t.Fatal(err)
}
Close()
Close()
Close()
Close()
}
func TestFormatBytes(t *testing.T) {
tests := []struct {
val uint64
want string
}{
{1023, "1023 bytes"},
{1024, "1.00KB (1024 bytes)"},
{1024*1024 - 100, "1023.90KB (1048476 bytes)"},
{1024 * 1024, "1.00MB (1048576 bytes)"},
{1024 * 1025, "1.00MB (1049600 bytes)"},
{1024 * 1024 * 1024, "1.00GB (1073741824 bytes)"},
{1024*1024*1024 + 430*1024*1024, "1.42GB (1524629504 bytes)"},
{1024 * 1024 * 1024 * 1024 * 1024, "1.00PB (1125899906842624 bytes)"},
{1024 * 1024 * 1024 * 1024 * 1024 * 1024, "1024.00PB (1152921504606846976 bytes)"},
}
for _, tt := range tests {
result := formatBytes(tt.val)
if result != tt.want {
t.Errorf("formatBytes(%v) = %q; want %q", tt.val, result, tt.want)
}
}
}

185
vendor/github.com/google/gops/cmd.go generated vendored Normal file
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@ -0,0 +1,185 @@
package main
import (
"errors"
"fmt"
"io"
"io/ioutil"
"net"
"os"
"os/exec"
"strconv"
"strings"
"github.com/google/gops/internal"
"github.com/google/gops/signal"
)
var cmds = map[string](func(addr net.TCPAddr) error){
"stack": stackTrace,
"gc": gc,
"memstats": memStats,
"version": version,
"pprof-heap": pprofHeap,
"pprof-cpu": pprofCPU,
"stats": stats,
"trace": trace,
}
func stackTrace(addr net.TCPAddr) error {
return cmdWithPrint(addr, signal.StackTrace)
}
func gc(addr net.TCPAddr) error {
_, err := cmd(addr, signal.GC)
return err
}
func memStats(addr net.TCPAddr) error {
return cmdWithPrint(addr, signal.MemStats)
}
func version(addr net.TCPAddr) error {
return cmdWithPrint(addr, signal.Version)
}
func pprofHeap(addr net.TCPAddr) error {
return pprof(addr, signal.HeapProfile)
}
func pprofCPU(addr net.TCPAddr) error {
fmt.Println("Profiling CPU now, will take 30 secs...")
return pprof(addr, signal.CPUProfile)
}
func trace(addr net.TCPAddr) error {
fmt.Println("Tracing now, will take 5 secs...")
out, err := cmd(addr, signal.Trace)
if err != nil {
return err
}
if len(out) == 0 {
return errors.New("nothing has traced")
}
tmpfile, err := ioutil.TempFile("", "trace")
if err != nil {
return err
}
defer os.Remove(tmpfile.Name())
if err := ioutil.WriteFile(tmpfile.Name(), out, 0); err != nil {
return err
}
fmt.Printf("Trace dump saved to: %s\n", tmpfile.Name())
cmd := exec.Command("go", "tool", "trace", tmpfile.Name())
cmd.Env = os.Environ()
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}
func pprof(addr net.TCPAddr, p byte) error {
tmpDumpFile, err := ioutil.TempFile("", "profile")
if err != nil {
return err
}
{
out, err := cmd(addr, p)
if err != nil {
return err
}
if len(out) == 0 {
return errors.New("failed to read the profile")
}
defer os.Remove(tmpDumpFile.Name())
if err := ioutil.WriteFile(tmpDumpFile.Name(), out, 0); err != nil {
return err
}
}
// Download running binary
tmpBinFile, err := ioutil.TempFile("", "binary")
if err != nil {
return err
}
{
out, err := cmd(addr, signal.BinaryDump)
if err != nil {
return fmt.Errorf("failed to read the binary: %v", err)
}
if len(out) == 0 {
return errors.New("failed to read the binary")
}
defer os.Remove(tmpBinFile.Name())
if err := ioutil.WriteFile(tmpBinFile.Name(), out, 0); err != nil {
return err
}
}
fmt.Printf("Profiling dump saved to: %s\n", tmpDumpFile.Name())
fmt.Printf("Binary file saved to: %s\n", tmpBinFile.Name())
cmd := exec.Command("go", "tool", "pprof", tmpBinFile.Name(), tmpDumpFile.Name())
cmd.Env = os.Environ()
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}
func stats(addr net.TCPAddr) error {
return cmdWithPrint(addr, signal.Stats)
}
func cmdWithPrint(addr net.TCPAddr, c byte) error {
out, err := cmd(addr, c)
if err != nil {
return err
}
fmt.Printf("%s", out)
return nil
}
// targetToAddr tries to parse the target string, be it remote host:port
// or local process's PID.
func targetToAddr(target string) (*net.TCPAddr, error) {
if strings.Index(target, ":") != -1 {
// addr host:port passed
var err error
addr, err := net.ResolveTCPAddr("tcp", target)
if err != nil {
return nil, fmt.Errorf("couldn't parse dst address: %v", err)
}
return addr, nil
}
// try to find port by pid then, connect to local
pid, err := strconv.Atoi(target)
if err != nil {
return nil, fmt.Errorf("couldn't parse PID: %v", err)
}
port, err := internal.GetPort(pid)
addr, _ := net.ResolveTCPAddr("tcp", "127.0.0.1:"+port)
return addr, nil
}
func cmd(addr net.TCPAddr, c byte) ([]byte, error) {
conn, err := cmdLazy(addr, c)
if err != nil {
return nil, fmt.Errorf("couldn't get port by PID: %v", err)
}
all, err := ioutil.ReadAll(conn)
if err != nil {
return nil, err
}
return all, nil
}
func cmdLazy(addr net.TCPAddr, c byte) (io.Reader, error) {
conn, err := net.DialTCP("tcp", nil, &addr)
if err != nil {
return nil, err
}
if _, err := conn.Write([]byte{c}); err != nil {
return nil, err
}
return conn, nil
}

19
vendor/github.com/google/gops/examples/hello/main.go generated vendored Normal file
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@ -0,0 +1,19 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"log"
"time"
"github.com/google/gops/agent"
)
func main() {
if err := agent.Listen(nil); err != nil {
log.Fatal(err)
}
time.Sleep(time.Hour)
}

112
vendor/github.com/google/gops/goprocess/gp.go generated vendored Normal file
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@ -0,0 +1,112 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package goprocess reports the Go processes running on a host.
package goprocess
import (
"os"
"sync"
goversion "rsc.io/goversion/version"
"github.com/google/gops/internal"
ps "github.com/keybase/go-ps"
)
// P represents a Go process.
type P struct {
PID int
PPID int
Exec string
Path string
BuildVersion string
Agent bool
}
// FindAll returns all the Go processes currently running on this host.
func FindAll() []P {
var results []P
pss, err := ps.Processes()
if err != nil {
return results
}
var wg sync.WaitGroup
wg.Add(len(pss))
for _, pr := range pss {
pr := pr
go func() {
defer wg.Done()
path, version, agent, ok, err := isGo(pr)
if err != nil {
// TODO(jbd): Return a list of errors.
}
if !ok {
return
}
results = append(results, P{
PID: pr.Pid(),
PPID: pr.PPid(),
Exec: pr.Executable(),
Path: path,
BuildVersion: version,
Agent: agent,
})
}()
}
wg.Wait()
return results
}
// Find finds info about the process identified with the given PID.
func Find(pid int) (p P, ok bool, err error) {
pr, err := ps.FindProcess(pid)
if err != nil {
return P{}, false, err
}
path, version, agent, ok, err := isGo(pr)
if !ok {
return P{}, false, nil
}
return P{
PID: pr.Pid(),
PPID: pr.PPid(),
Exec: pr.Executable(),
Path: path,
BuildVersion: version,
Agent: agent,
}, true, nil
}
// isGo looks up the runtime.buildVersion symbol
// in the process' binary and determines if the process
// if a Go process or not. If the process is a Go process,
// it reports PID, binary name and full path of the binary.
func isGo(pr ps.Process) (path, version string, agent, ok bool, err error) {
if pr.Pid() == 0 {
// ignore system process
return
}
path, err = pr.Path()
if err != nil {
return
}
var versionInfo goversion.Version
versionInfo, err = goversion.ReadExe(path)
if err != nil {
return
}
ok = true
version = versionInfo.Release
pidfile, err := internal.PIDFile(pr.Pid())
if err == nil {
_, err := os.Stat(pidfile)
agent = err == nil
}
return path, version, agent, ok, nil
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package dwarf generates DWARF debugging information.
// DWARF generation is split between the compiler and the linker,
// this package contains the shared code.
package dwarf
import (
"fmt"
)
// InfoPrefix is the prefix for all the symbols containing DWARF info entries.
const InfoPrefix = "go.info."
// Sym represents a symbol.
type Sym interface {
}
// A Var represents a local variable or a function parameter.
type Var struct {
Name string
Abbrev int // Either DW_ABRV_AUTO or DW_ABRV_PARAM
Offset int32
Type Sym
Link *Var
}
// A Context specifies how to add data to a Sym.
type Context interface {
PtrSize() int
AddInt(s Sym, size int, i int64)
AddBytes(s Sym, b []byte)
AddAddress(s Sym, t interface{}, ofs int64)
AddSectionOffset(s Sym, size int, t interface{}, ofs int64)
AddString(s Sym, v string)
SymValue(s Sym) int64
}
// AppendUleb128 appends v to b using DWARF's unsigned LEB128 encoding.
func AppendUleb128(b []byte, v uint64) []byte {
for {
c := uint8(v & 0x7f)
v >>= 7
if v != 0 {
c |= 0x80
}
b = append(b, c)
if c&0x80 == 0 {
break
}
}
return b
}
// AppendSleb128 appends v to b using DWARF's signed LEB128 encoding.
func AppendSleb128(b []byte, v int64) []byte {
for {
c := uint8(v & 0x7f)
s := uint8(v & 0x40)
v >>= 7
if (v != -1 || s == 0) && (v != 0 || s != 0) {
c |= 0x80
}
b = append(b, c)
if c&0x80 == 0 {
break
}
}
return b
}
var encbuf [20]byte
// AppendUleb128 appends v to s using DWARF's unsigned LEB128 encoding.
func Uleb128put(ctxt Context, s Sym, v int64) {
b := AppendUleb128(encbuf[:0], uint64(v))
ctxt.AddBytes(s, b)
}
// AppendUleb128 appends v to s using DWARF's signed LEB128 encoding.
func Sleb128put(ctxt Context, s Sym, v int64) {
b := AppendSleb128(encbuf[:0], v)
ctxt.AddBytes(s, b)
}
/*
* Defining Abbrevs. This is hardcoded, and there will be
* only a handful of them. The DWARF spec places no restriction on
* the ordering of attributes in the Abbrevs and DIEs, and we will
* always write them out in the order of declaration in the abbrev.
*/
type dwAttrForm struct {
attr uint16
form uint8
}
// Go-specific type attributes.
const (
DW_AT_go_kind = 0x2900
DW_AT_go_key = 0x2901
DW_AT_go_elem = 0x2902
DW_AT_internal_location = 253 // params and locals; not emitted
)
// Index into the abbrevs table below.
// Keep in sync with ispubname() and ispubtype() below.
// ispubtype considers >= NULLTYPE public
const (
DW_ABRV_NULL = iota
DW_ABRV_COMPUNIT
DW_ABRV_FUNCTION
DW_ABRV_VARIABLE
DW_ABRV_AUTO
DW_ABRV_PARAM
DW_ABRV_STRUCTFIELD
DW_ABRV_FUNCTYPEPARAM
DW_ABRV_DOTDOTDOT
DW_ABRV_ARRAYRANGE
DW_ABRV_NULLTYPE
DW_ABRV_BASETYPE
DW_ABRV_ARRAYTYPE
DW_ABRV_CHANTYPE
DW_ABRV_FUNCTYPE
DW_ABRV_IFACETYPE
DW_ABRV_MAPTYPE
DW_ABRV_PTRTYPE
DW_ABRV_BARE_PTRTYPE // only for void*, no DW_AT_type attr to please gdb 6.
DW_ABRV_SLICETYPE
DW_ABRV_STRINGTYPE
DW_ABRV_STRUCTTYPE
DW_ABRV_TYPEDECL
DW_NABRV
)
type dwAbbrev struct {
tag uint8
children uint8
attr []dwAttrForm
}
var abbrevs = [DW_NABRV]dwAbbrev{
/* The mandatory DW_ABRV_NULL entry. */
{0, 0, []dwAttrForm{}},
/* COMPUNIT */
{
DW_TAG_compile_unit,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_language, DW_FORM_data1},
{DW_AT_low_pc, DW_FORM_addr},
{DW_AT_high_pc, DW_FORM_addr},
{DW_AT_stmt_list, DW_FORM_data4},
{DW_AT_comp_dir, DW_FORM_string},
},
},
/* FUNCTION */
{
DW_TAG_subprogram,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_low_pc, DW_FORM_addr},
{DW_AT_high_pc, DW_FORM_addr},
{DW_AT_external, DW_FORM_flag},
},
},
/* VARIABLE */
{
DW_TAG_variable,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_location, DW_FORM_block1},
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_external, DW_FORM_flag},
},
},
/* AUTO */
{
DW_TAG_variable,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_location, DW_FORM_block1},
{DW_AT_type, DW_FORM_ref_addr},
},
},
/* PARAM */
{
DW_TAG_formal_parameter,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_location, DW_FORM_block1},
{DW_AT_type, DW_FORM_ref_addr},
},
},
/* STRUCTFIELD */
{
DW_TAG_member,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_data_member_location, DW_FORM_block1},
{DW_AT_type, DW_FORM_ref_addr},
},
},
/* FUNCTYPEPARAM */
{
DW_TAG_formal_parameter,
DW_CHILDREN_no,
// No name!
[]dwAttrForm{
{DW_AT_type, DW_FORM_ref_addr},
},
},
/* DOTDOTDOT */
{
DW_TAG_unspecified_parameters,
DW_CHILDREN_no,
[]dwAttrForm{},
},
/* ARRAYRANGE */
{
DW_TAG_subrange_type,
DW_CHILDREN_no,
// No name!
[]dwAttrForm{
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_count, DW_FORM_udata},
},
},
// Below here are the types considered public by ispubtype
/* NULLTYPE */
{
DW_TAG_unspecified_type,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
},
},
/* BASETYPE */
{
DW_TAG_base_type,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_encoding, DW_FORM_data1},
{DW_AT_byte_size, DW_FORM_data1},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* ARRAYTYPE */
// child is subrange with upper bound
{
DW_TAG_array_type,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_byte_size, DW_FORM_udata},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* CHANTYPE */
{
DW_TAG_typedef,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_go_kind, DW_FORM_data1},
{DW_AT_go_elem, DW_FORM_ref_addr},
},
},
/* FUNCTYPE */
{
DW_TAG_subroutine_type,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
// {DW_AT_type, DW_FORM_ref_addr},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* IFACETYPE */
{
DW_TAG_typedef,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* MAPTYPE */
{
DW_TAG_typedef,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_go_kind, DW_FORM_data1},
{DW_AT_go_key, DW_FORM_ref_addr},
{DW_AT_go_elem, DW_FORM_ref_addr},
},
},
/* PTRTYPE */
{
DW_TAG_pointer_type,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_type, DW_FORM_ref_addr},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* BARE_PTRTYPE */
{
DW_TAG_pointer_type,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
},
},
/* SLICETYPE */
{
DW_TAG_structure_type,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_byte_size, DW_FORM_udata},
{DW_AT_go_kind, DW_FORM_data1},
{DW_AT_go_elem, DW_FORM_ref_addr},
},
},
/* STRINGTYPE */
{
DW_TAG_structure_type,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_byte_size, DW_FORM_udata},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* STRUCTTYPE */
{
DW_TAG_structure_type,
DW_CHILDREN_yes,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_byte_size, DW_FORM_udata},
{DW_AT_go_kind, DW_FORM_data1},
},
},
/* TYPEDECL */
{
DW_TAG_typedef,
DW_CHILDREN_no,
[]dwAttrForm{
{DW_AT_name, DW_FORM_string},
{DW_AT_type, DW_FORM_ref_addr},
},
},
}
// GetAbbrev returns the contents of the .debug_abbrev section.
func GetAbbrev() []byte {
var buf []byte
for i := 1; i < DW_NABRV; i++ {
// See section 7.5.3
buf = AppendUleb128(buf, uint64(i))
buf = AppendUleb128(buf, uint64(abbrevs[i].tag))
buf = append(buf, byte(abbrevs[i].children))
for _, f := range abbrevs[i].attr {
buf = AppendUleb128(buf, uint64(f.attr))
buf = AppendUleb128(buf, uint64(f.form))
}
buf = append(buf, 0, 0)
}
return append(buf, 0)
}
/*
* Debugging Information Entries and their attributes.
*/
// DWAttr represents an attribute of a DWDie.
//
// For DW_CLS_string and _block, value should contain the length, and
// data the data, for _reference, value is 0 and data is a DWDie* to
// the referenced instance, for all others, value is the whole thing
// and data is null.
type DWAttr struct {
Link *DWAttr
Atr uint16 // DW_AT_
Cls uint8 // DW_CLS_
Value int64
Data interface{}
}
// DWDie represents a DWARF debug info entry.
type DWDie struct {
Abbrev int
Link *DWDie
Child *DWDie
Attr *DWAttr
Sym Sym
}
func putattr(ctxt Context, s Sym, abbrev int, form int, cls int, value int64, data interface{}) error {
switch form {
case DW_FORM_addr: // address
ctxt.AddAddress(s, data, value)
case DW_FORM_block1: // block
if cls == DW_CLS_ADDRESS {
ctxt.AddInt(s, 1, int64(1+ctxt.PtrSize()))
ctxt.AddInt(s, 1, DW_OP_addr)
ctxt.AddAddress(s, data, 0)
break
}
value &= 0xff
ctxt.AddInt(s, 1, value)
p := data.([]byte)[:value]
ctxt.AddBytes(s, p)
case DW_FORM_block2: // block
value &= 0xffff
ctxt.AddInt(s, 2, value)
p := data.([]byte)[:value]
ctxt.AddBytes(s, p)
case DW_FORM_block4: // block
value &= 0xffffffff
ctxt.AddInt(s, 4, value)
p := data.([]byte)[:value]
ctxt.AddBytes(s, p)
case DW_FORM_block: // block
Uleb128put(ctxt, s, value)
p := data.([]byte)[:value]
ctxt.AddBytes(s, p)
case DW_FORM_data1: // constant
ctxt.AddInt(s, 1, value)
case DW_FORM_data2: // constant
ctxt.AddInt(s, 2, value)
case DW_FORM_data4: // constant, {line,loclist,mac,rangelist}ptr
if cls == DW_CLS_PTR { // DW_AT_stmt_list
ctxt.AddSectionOffset(s, 4, data, 0)
break
}
ctxt.AddInt(s, 4, value)
case DW_FORM_data8: // constant, {line,loclist,mac,rangelist}ptr
ctxt.AddInt(s, 8, value)
case DW_FORM_sdata: // constant
Sleb128put(ctxt, s, value)
case DW_FORM_udata: // constant
Uleb128put(ctxt, s, value)
case DW_FORM_string: // string
str := data.(string)
ctxt.AddString(s, str)
// TODO(ribrdb): verify padded strings are never used and remove this
for i := int64(len(str)); i < value; i++ {
ctxt.AddInt(s, 1, 0)
}
case DW_FORM_flag: // flag
if value != 0 {
ctxt.AddInt(s, 1, 1)
} else {
ctxt.AddInt(s, 1, 0)
}
// In DWARF 2 (which is what we claim to generate),
// the ref_addr is the same size as a normal address.
// In DWARF 3 it is always 32 bits, unless emitting a large
// (> 4 GB of debug info aka "64-bit") unit, which we don't implement.
case DW_FORM_ref_addr: // reference to a DIE in the .info section
if data == nil {
return fmt.Errorf("dwarf: null reference in %d", abbrev)
} else {
ctxt.AddSectionOffset(s, ctxt.PtrSize(), data, 0)
}
case DW_FORM_ref1, // reference within the compilation unit
DW_FORM_ref2, // reference
DW_FORM_ref4, // reference
DW_FORM_ref8, // reference
DW_FORM_ref_udata, // reference
DW_FORM_strp, // string
DW_FORM_indirect: // (see Section 7.5.3)
fallthrough
default:
return fmt.Errorf("dwarf: unsupported attribute form %d / class %d", form, cls)
}
return nil
}
// PutAttrs writes the attributes for a DIE to symbol 's'.
//
// Note that we can (and do) add arbitrary attributes to a DIE, but
// only the ones actually listed in the Abbrev will be written out.
func PutAttrs(ctxt Context, s Sym, abbrev int, attr *DWAttr) {
Outer:
for _, f := range abbrevs[abbrev].attr {
for ap := attr; ap != nil; ap = ap.Link {
if ap.Atr == f.attr {
putattr(ctxt, s, abbrev, int(f.form), int(ap.Cls), ap.Value, ap.Data)
continue Outer
}
}
putattr(ctxt, s, abbrev, int(f.form), 0, 0, nil)
}
}
// HasChildren returns true if 'die' uses an abbrev that supports children.
func HasChildren(die *DWDie) bool {
return abbrevs[die.Abbrev].children != 0
}
// PutFunc writes a DIE for a function to s.
// It also writes child DIEs for each variable in vars.
func PutFunc(ctxt Context, s Sym, name string, external bool, startPC Sym, size int64, vars *Var) {
Uleb128put(ctxt, s, DW_ABRV_FUNCTION)
putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_string, DW_CLS_STRING, int64(len(name)), name)
putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_addr, DW_CLS_ADDRESS, 0, startPC)
putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_addr, DW_CLS_ADDRESS, size+ctxt.SymValue(startPC), startPC)
var ev int64
if external {
ev = 1
}
putattr(ctxt, s, DW_ABRV_FUNCTION, DW_FORM_flag, DW_CLS_FLAG, ev, 0)
names := make(map[string]bool)
for v := vars; v != nil; v = v.Link {
var n string
if names[v.Name] {
n = fmt.Sprintf("%s#%d", v.Name, len(names))
} else {
n = v.Name
}
names[n] = true
Uleb128put(ctxt, s, int64(v.Abbrev))
putattr(ctxt, s, v.Abbrev, DW_FORM_string, DW_CLS_STRING, int64(len(n)), n)
loc := append(encbuf[:0], DW_OP_call_frame_cfa)
if v.Offset != 0 {
loc = append(loc, DW_OP_consts)
loc = AppendSleb128(loc, int64(v.Offset))
loc = append(loc, DW_OP_plus)
}
putattr(ctxt, s, v.Abbrev, DW_FORM_block1, DW_CLS_BLOCK, int64(len(loc)), loc)
putattr(ctxt, s, v.Abbrev, DW_FORM_ref_addr, DW_CLS_REFERENCE, 0, v.Type)
}
Uleb128put(ctxt, s, 0)
}

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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package dwarf
// Cut, pasted, tr-and-awk'ed from tables in
// http://dwarfstd.org/doc/Dwarf3.pdf
// Table 18
const (
DW_TAG_array_type = 0x01
DW_TAG_class_type = 0x02
DW_TAG_entry_point = 0x03
DW_TAG_enumeration_type = 0x04
DW_TAG_formal_parameter = 0x05
DW_TAG_imported_declaration = 0x08
DW_TAG_label = 0x0a
DW_TAG_lexical_block = 0x0b
DW_TAG_member = 0x0d
DW_TAG_pointer_type = 0x0f
DW_TAG_reference_type = 0x10
DW_TAG_compile_unit = 0x11
DW_TAG_string_type = 0x12
DW_TAG_structure_type = 0x13
DW_TAG_subroutine_type = 0x15
DW_TAG_typedef = 0x16
DW_TAG_union_type = 0x17
DW_TAG_unspecified_parameters = 0x18
DW_TAG_variant = 0x19
DW_TAG_common_block = 0x1a
DW_TAG_common_inclusion = 0x1b
DW_TAG_inheritance = 0x1c
DW_TAG_inlined_subroutine = 0x1d
DW_TAG_module = 0x1e
DW_TAG_ptr_to_member_type = 0x1f
DW_TAG_set_type = 0x20
DW_TAG_subrange_type = 0x21
DW_TAG_with_stmt = 0x22
DW_TAG_access_declaration = 0x23
DW_TAG_base_type = 0x24
DW_TAG_catch_block = 0x25
DW_TAG_const_type = 0x26
DW_TAG_constant = 0x27
DW_TAG_enumerator = 0x28
DW_TAG_file_type = 0x29
DW_TAG_friend = 0x2a
DW_TAG_namelist = 0x2b
DW_TAG_namelist_item = 0x2c
DW_TAG_packed_type = 0x2d
DW_TAG_subprogram = 0x2e
DW_TAG_template_type_parameter = 0x2f
DW_TAG_template_value_parameter = 0x30
DW_TAG_thrown_type = 0x31
DW_TAG_try_block = 0x32
DW_TAG_variant_part = 0x33
DW_TAG_variable = 0x34
DW_TAG_volatile_type = 0x35
// Dwarf3
DW_TAG_dwarf_procedure = 0x36
DW_TAG_restrict_type = 0x37
DW_TAG_interface_type = 0x38
DW_TAG_namespace = 0x39
DW_TAG_imported_module = 0x3a
DW_TAG_unspecified_type = 0x3b
DW_TAG_partial_unit = 0x3c
DW_TAG_imported_unit = 0x3d
DW_TAG_condition = 0x3f
DW_TAG_shared_type = 0x40
// Dwarf4
DW_TAG_type_unit = 0x41
DW_TAG_rvalue_reference_type = 0x42
DW_TAG_template_alias = 0x43
// User defined
DW_TAG_lo_user = 0x4080
DW_TAG_hi_user = 0xffff
)
// Table 19
const (
DW_CHILDREN_no = 0x00
DW_CHILDREN_yes = 0x01
)
// Not from the spec, but logically belongs here
const (
DW_CLS_ADDRESS = 0x01 + iota
DW_CLS_BLOCK
DW_CLS_CONSTANT
DW_CLS_FLAG
DW_CLS_PTR // lineptr, loclistptr, macptr, rangelistptr
DW_CLS_REFERENCE
DW_CLS_ADDRLOC
DW_CLS_STRING
)
// Table 20
const (
DW_AT_sibling = 0x01 // reference
DW_AT_location = 0x02 // block, loclistptr
DW_AT_name = 0x03 // string
DW_AT_ordering = 0x09 // constant
DW_AT_byte_size = 0x0b // block, constant, reference
DW_AT_bit_offset = 0x0c // block, constant, reference
DW_AT_bit_size = 0x0d // block, constant, reference
DW_AT_stmt_list = 0x10 // lineptr
DW_AT_low_pc = 0x11 // address
DW_AT_high_pc = 0x12 // address
DW_AT_language = 0x13 // constant
DW_AT_discr = 0x15 // reference
DW_AT_discr_value = 0x16 // constant
DW_AT_visibility = 0x17 // constant
DW_AT_import = 0x18 // reference
DW_AT_string_length = 0x19 // block, loclistptr
DW_AT_common_reference = 0x1a // reference
DW_AT_comp_dir = 0x1b // string
DW_AT_const_value = 0x1c // block, constant, string
DW_AT_containing_type = 0x1d // reference
DW_AT_default_value = 0x1e // reference
DW_AT_inline = 0x20 // constant
DW_AT_is_optional = 0x21 // flag
DW_AT_lower_bound = 0x22 // block, constant, reference
DW_AT_producer = 0x25 // string
DW_AT_prototyped = 0x27 // flag
DW_AT_return_addr = 0x2a // block, loclistptr
DW_AT_start_scope = 0x2c // constant
DW_AT_bit_stride = 0x2e // constant
DW_AT_upper_bound = 0x2f // block, constant, reference
DW_AT_abstract_origin = 0x31 // reference
DW_AT_accessibility = 0x32 // constant
DW_AT_address_class = 0x33 // constant
DW_AT_artificial = 0x34 // flag
DW_AT_base_types = 0x35 // reference
DW_AT_calling_convention = 0x36 // constant
DW_AT_count = 0x37 // block, constant, reference
DW_AT_data_member_location = 0x38 // block, constant, loclistptr
DW_AT_decl_column = 0x39 // constant
DW_AT_decl_file = 0x3a // constant
DW_AT_decl_line = 0x3b // constant
DW_AT_declaration = 0x3c // flag
DW_AT_discr_list = 0x3d // block
DW_AT_encoding = 0x3e // constant
DW_AT_external = 0x3f // flag
DW_AT_frame_base = 0x40 // block, loclistptr
DW_AT_friend = 0x41 // reference
DW_AT_identifier_case = 0x42 // constant
DW_AT_macro_info = 0x43 // macptr
DW_AT_namelist_item = 0x44 // block
DW_AT_priority = 0x45 // reference
DW_AT_segment = 0x46 // block, loclistptr
DW_AT_specification = 0x47 // reference
DW_AT_static_link = 0x48 // block, loclistptr
DW_AT_type = 0x49 // reference
DW_AT_use_location = 0x4a // block, loclistptr
DW_AT_variable_parameter = 0x4b // flag
DW_AT_virtuality = 0x4c // constant
DW_AT_vtable_elem_location = 0x4d // block, loclistptr
// Dwarf3
DW_AT_allocated = 0x4e // block, constant, reference
DW_AT_associated = 0x4f // block, constant, reference
DW_AT_data_location = 0x50 // block
DW_AT_byte_stride = 0x51 // block, constant, reference
DW_AT_entry_pc = 0x52 // address
DW_AT_use_UTF8 = 0x53 // flag
DW_AT_extension = 0x54 // reference
DW_AT_ranges = 0x55 // rangelistptr
DW_AT_trampoline = 0x56 // address, flag, reference, string
DW_AT_call_column = 0x57 // constant
DW_AT_call_file = 0x58 // constant
DW_AT_call_line = 0x59 // constant
DW_AT_description = 0x5a // string
DW_AT_binary_scale = 0x5b // constant
DW_AT_decimal_scale = 0x5c // constant
DW_AT_small = 0x5d // reference
DW_AT_decimal_sign = 0x5e // constant
DW_AT_digit_count = 0x5f // constant
DW_AT_picture_string = 0x60 // string
DW_AT_mutable = 0x61 // flag
DW_AT_threads_scaled = 0x62 // flag
DW_AT_explicit = 0x63 // flag
DW_AT_object_pointer = 0x64 // reference
DW_AT_endianity = 0x65 // constant
DW_AT_elemental = 0x66 // flag
DW_AT_pure = 0x67 // flag
DW_AT_recursive = 0x68 // flag
DW_AT_lo_user = 0x2000 // ---
DW_AT_hi_user = 0x3fff // ---
)
// Table 21
const (
DW_FORM_addr = 0x01 // address
DW_FORM_block2 = 0x03 // block
DW_FORM_block4 = 0x04 // block
DW_FORM_data2 = 0x05 // constant
DW_FORM_data4 = 0x06 // constant, lineptr, loclistptr, macptr, rangelistptr
DW_FORM_data8 = 0x07 // constant, lineptr, loclistptr, macptr, rangelistptr
DW_FORM_string = 0x08 // string
DW_FORM_block = 0x09 // block
DW_FORM_block1 = 0x0a // block
DW_FORM_data1 = 0x0b // constant
DW_FORM_flag = 0x0c // flag
DW_FORM_sdata = 0x0d // constant
DW_FORM_strp = 0x0e // string
DW_FORM_udata = 0x0f // constant
DW_FORM_ref_addr = 0x10 // reference
DW_FORM_ref1 = 0x11 // reference
DW_FORM_ref2 = 0x12 // reference
DW_FORM_ref4 = 0x13 // reference
DW_FORM_ref8 = 0x14 // reference
DW_FORM_ref_udata = 0x15 // reference
DW_FORM_indirect = 0x16 // (see Section 7.5.3)
)
// Table 24 (#operands, notes)
const (
DW_OP_addr = 0x03 // 1 constant address (size target specific)
DW_OP_deref = 0x06 // 0
DW_OP_const1u = 0x08 // 1 1-byte constant
DW_OP_const1s = 0x09 // 1 1-byte constant
DW_OP_const2u = 0x0a // 1 2-byte constant
DW_OP_const2s = 0x0b // 1 2-byte constant
DW_OP_const4u = 0x0c // 1 4-byte constant
DW_OP_const4s = 0x0d // 1 4-byte constant
DW_OP_const8u = 0x0e // 1 8-byte constant
DW_OP_const8s = 0x0f // 1 8-byte constant
DW_OP_constu = 0x10 // 1 ULEB128 constant
DW_OP_consts = 0x11 // 1 SLEB128 constant
DW_OP_dup = 0x12 // 0
DW_OP_drop = 0x13 // 0
DW_OP_over = 0x14 // 0
DW_OP_pick = 0x15 // 1 1-byte stack index
DW_OP_swap = 0x16 // 0
DW_OP_rot = 0x17 // 0
DW_OP_xderef = 0x18 // 0
DW_OP_abs = 0x19 // 0
DW_OP_and = 0x1a // 0
DW_OP_div = 0x1b // 0
DW_OP_minus = 0x1c // 0
DW_OP_mod = 0x1d // 0
DW_OP_mul = 0x1e // 0
DW_OP_neg = 0x1f // 0
DW_OP_not = 0x20 // 0
DW_OP_or = 0x21 // 0
DW_OP_plus = 0x22 // 0
DW_OP_plus_uconst = 0x23 // 1 ULEB128 addend
DW_OP_shl = 0x24 // 0
DW_OP_shr = 0x25 // 0
DW_OP_shra = 0x26 // 0
DW_OP_xor = 0x27 // 0
DW_OP_skip = 0x2f // 1 signed 2-byte constant
DW_OP_bra = 0x28 // 1 signed 2-byte constant
DW_OP_eq = 0x29 // 0
DW_OP_ge = 0x2a // 0
DW_OP_gt = 0x2b // 0
DW_OP_le = 0x2c // 0
DW_OP_lt = 0x2d // 0
DW_OP_ne = 0x2e // 0
DW_OP_lit0 = 0x30 // 0 ...
DW_OP_lit31 = 0x4f // 0 literals 0..31 = (DW_OP_lit0 + literal)
DW_OP_reg0 = 0x50 // 0 ..
DW_OP_reg31 = 0x6f // 0 reg 0..31 = (DW_OP_reg0 + regnum)
DW_OP_breg0 = 0x70 // 1 ...
DW_OP_breg31 = 0x8f // 1 SLEB128 offset base register 0..31 = (DW_OP_breg0 + regnum)
DW_OP_regx = 0x90 // 1 ULEB128 register
DW_OP_fbreg = 0x91 // 1 SLEB128 offset
DW_OP_bregx = 0x92 // 2 ULEB128 register followed by SLEB128 offset
DW_OP_piece = 0x93 // 1 ULEB128 size of piece addressed
DW_OP_deref_size = 0x94 // 1 1-byte size of data retrieved
DW_OP_xderef_size = 0x95 // 1 1-byte size of data retrieved
DW_OP_nop = 0x96 // 0
DW_OP_push_object_address = 0x97 // 0
DW_OP_call2 = 0x98 // 1 2-byte offset of DIE
DW_OP_call4 = 0x99 // 1 4-byte offset of DIE
DW_OP_call_ref = 0x9a // 1 4- or 8-byte offset of DIE
DW_OP_form_tls_address = 0x9b // 0
DW_OP_call_frame_cfa = 0x9c // 0
DW_OP_bit_piece = 0x9d // 2
DW_OP_lo_user = 0xe0
DW_OP_hi_user = 0xff
)
// Table 25
const (
DW_ATE_address = 0x01
DW_ATE_boolean = 0x02
DW_ATE_complex_float = 0x03
DW_ATE_float = 0x04
DW_ATE_signed = 0x05
DW_ATE_signed_char = 0x06
DW_ATE_unsigned = 0x07
DW_ATE_unsigned_char = 0x08
DW_ATE_imaginary_float = 0x09
DW_ATE_packed_decimal = 0x0a
DW_ATE_numeric_string = 0x0b
DW_ATE_edited = 0x0c
DW_ATE_signed_fixed = 0x0d
DW_ATE_unsigned_fixed = 0x0e
DW_ATE_decimal_float = 0x0f
DW_ATE_lo_user = 0x80
DW_ATE_hi_user = 0xff
)
// Table 26
const (
DW_DS_unsigned = 0x01
DW_DS_leading_overpunch = 0x02
DW_DS_trailing_overpunch = 0x03
DW_DS_leading_separate = 0x04
DW_DS_trailing_separate = 0x05
)
// Table 27
const (
DW_END_default = 0x00
DW_END_big = 0x01
DW_END_little = 0x02
DW_END_lo_user = 0x40
DW_END_hi_user = 0xff
)
// Table 28
const (
DW_ACCESS_public = 0x01
DW_ACCESS_protected = 0x02
DW_ACCESS_private = 0x03
)
// Table 29
const (
DW_VIS_local = 0x01
DW_VIS_exported = 0x02
DW_VIS_qualified = 0x03
)
// Table 30
const (
DW_VIRTUALITY_none = 0x00
DW_VIRTUALITY_virtual = 0x01
DW_VIRTUALITY_pure_virtual = 0x02
)
// Table 31
const (
DW_LANG_C89 = 0x0001
DW_LANG_C = 0x0002
DW_LANG_Ada83 = 0x0003
DW_LANG_C_plus_plus = 0x0004
DW_LANG_Cobol74 = 0x0005
DW_LANG_Cobol85 = 0x0006
DW_LANG_Fortran77 = 0x0007
DW_LANG_Fortran90 = 0x0008
DW_LANG_Pascal83 = 0x0009
DW_LANG_Modula2 = 0x000a
// Dwarf3
DW_LANG_Java = 0x000b
DW_LANG_C99 = 0x000c
DW_LANG_Ada95 = 0x000d
DW_LANG_Fortran95 = 0x000e
DW_LANG_PLI = 0x000f
DW_LANG_ObjC = 0x0010
DW_LANG_ObjC_plus_plus = 0x0011
DW_LANG_UPC = 0x0012
DW_LANG_D = 0x0013
// Dwarf4
DW_LANG_Python = 0x0014
// Dwarf5
DW_LANG_Go = 0x0016
DW_LANG_lo_user = 0x8000
DW_LANG_hi_user = 0xffff
)
// Table 32
const (
DW_ID_case_sensitive = 0x00
DW_ID_up_case = 0x01
DW_ID_down_case = 0x02
DW_ID_case_insensitive = 0x03
)
// Table 33
const (
DW_CC_normal = 0x01
DW_CC_program = 0x02
DW_CC_nocall = 0x03
DW_CC_lo_user = 0x40
DW_CC_hi_user = 0xff
)
// Table 34
const (
DW_INL_not_inlined = 0x00
DW_INL_inlined = 0x01
DW_INL_declared_not_inlined = 0x02
DW_INL_declared_inlined = 0x03
)
// Table 35
const (
DW_ORD_row_major = 0x00
DW_ORD_col_major = 0x01
)
// Table 36
const (
DW_DSC_label = 0x00
DW_DSC_range = 0x01
)
// Table 37
const (
DW_LNS_copy = 0x01
DW_LNS_advance_pc = 0x02
DW_LNS_advance_line = 0x03
DW_LNS_set_file = 0x04
DW_LNS_set_column = 0x05
DW_LNS_negate_stmt = 0x06
DW_LNS_set_basic_block = 0x07
DW_LNS_const_add_pc = 0x08
DW_LNS_fixed_advance_pc = 0x09
// Dwarf3
DW_LNS_set_prologue_end = 0x0a
DW_LNS_set_epilogue_begin = 0x0b
DW_LNS_set_isa = 0x0c
)
// Table 38
const (
DW_LNE_end_sequence = 0x01
DW_LNE_set_address = 0x02
DW_LNE_define_file = 0x03
DW_LNE_lo_user = 0x80
DW_LNE_hi_user = 0xff
)
// Table 39
const (
DW_MACINFO_define = 0x01
DW_MACINFO_undef = 0x02
DW_MACINFO_start_file = 0x03
DW_MACINFO_end_file = 0x04
DW_MACINFO_vendor_ext = 0xff
)
// Table 40.
const (
// operand,...
DW_CFA_nop = 0x00
DW_CFA_set_loc = 0x01 // address
DW_CFA_advance_loc1 = 0x02 // 1-byte delta
DW_CFA_advance_loc2 = 0x03 // 2-byte delta
DW_CFA_advance_loc4 = 0x04 // 4-byte delta
DW_CFA_offset_extended = 0x05 // ULEB128 register, ULEB128 offset
DW_CFA_restore_extended = 0x06 // ULEB128 register
DW_CFA_undefined = 0x07 // ULEB128 register
DW_CFA_same_value = 0x08 // ULEB128 register
DW_CFA_register = 0x09 // ULEB128 register, ULEB128 register
DW_CFA_remember_state = 0x0a
DW_CFA_restore_state = 0x0b
DW_CFA_def_cfa = 0x0c // ULEB128 register, ULEB128 offset
DW_CFA_def_cfa_register = 0x0d // ULEB128 register
DW_CFA_def_cfa_offset = 0x0e // ULEB128 offset
DW_CFA_def_cfa_expression = 0x0f // BLOCK
DW_CFA_expression = 0x10 // ULEB128 register, BLOCK
DW_CFA_offset_extended_sf = 0x11 // ULEB128 register, SLEB128 offset
DW_CFA_def_cfa_sf = 0x12 // ULEB128 register, SLEB128 offset
DW_CFA_def_cfa_offset_sf = 0x13 // SLEB128 offset
DW_CFA_val_offset = 0x14 // ULEB128, ULEB128
DW_CFA_val_offset_sf = 0x15 // ULEB128, SLEB128
DW_CFA_val_expression = 0x16 // ULEB128, BLOCK
DW_CFA_lo_user = 0x1c
DW_CFA_hi_user = 0x3f
// Opcodes that take an addend operand.
DW_CFA_advance_loc = 0x1 << 6 // +delta
DW_CFA_offset = 0x2 << 6 // +register (ULEB128 offset)
DW_CFA_restore = 0x3 << 6 // +register
)

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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package goobj implements reading of Go object files and archives.
//
// TODO(rsc): Decide where this package should live. (golang.org/issue/6932)
// TODO(rsc): Decide the appropriate integer types for various fields.
// TODO(rsc): Write tests. (File format still up in the air a little.)
package goobj
import (
"bufio"
"bytes"
"errors"
"fmt"
"io"
"strconv"
"strings"
"github.com/google/gops/internal/obj"
)
// A SymKind describes the kind of memory represented by a symbol.
type SymKind int
// This list is taken from include/link.h.
// Defined SymKind values.
// TODO(rsc): Give idiomatic Go names.
// TODO(rsc): Reduce the number of symbol types in the object files.
const (
// readonly, executable
STEXT = SymKind(obj.STEXT)
SELFRXSECT = SymKind(obj.SELFRXSECT)
// readonly, non-executable
STYPE = SymKind(obj.STYPE)
SSTRING = SymKind(obj.SSTRING)
SGOSTRING = SymKind(obj.SGOSTRING)
SGOFUNC = SymKind(obj.SGOFUNC)
SRODATA = SymKind(obj.SRODATA)
SFUNCTAB = SymKind(obj.SFUNCTAB)
STYPELINK = SymKind(obj.STYPELINK)
SITABLINK = SymKind(obj.SITABLINK)
SSYMTAB = SymKind(obj.SSYMTAB) // TODO: move to unmapped section
SPCLNTAB = SymKind(obj.SPCLNTAB)
SELFROSECT = SymKind(obj.SELFROSECT)
// writable, non-executable
SMACHOPLT = SymKind(obj.SMACHOPLT)
SELFSECT = SymKind(obj.SELFSECT)
SMACHO = SymKind(obj.SMACHO) // Mach-O __nl_symbol_ptr
SMACHOGOT = SymKind(obj.SMACHOGOT)
SWINDOWS = SymKind(obj.SWINDOWS)
SELFGOT = SymKind(obj.SELFGOT)
SNOPTRDATA = SymKind(obj.SNOPTRDATA)
SINITARR = SymKind(obj.SINITARR)
SDATA = SymKind(obj.SDATA)
SBSS = SymKind(obj.SBSS)
SNOPTRBSS = SymKind(obj.SNOPTRBSS)
STLSBSS = SymKind(obj.STLSBSS)
// not mapped
SXREF = SymKind(obj.SXREF)
SMACHOSYMSTR = SymKind(obj.SMACHOSYMSTR)
SMACHOSYMTAB = SymKind(obj.SMACHOSYMTAB)
SMACHOINDIRECTPLT = SymKind(obj.SMACHOINDIRECTPLT)
SMACHOINDIRECTGOT = SymKind(obj.SMACHOINDIRECTGOT)
SFILE = SymKind(obj.SFILE)
SFILEPATH = SymKind(obj.SFILEPATH)
SCONST = SymKind(obj.SCONST)
SDYNIMPORT = SymKind(obj.SDYNIMPORT)
SHOSTOBJ = SymKind(obj.SHOSTOBJ)
)
var symKindStrings = []string{
SBSS: "SBSS",
SCONST: "SCONST",
SDATA: "SDATA",
SDYNIMPORT: "SDYNIMPORT",
SELFROSECT: "SELFROSECT",
SELFRXSECT: "SELFRXSECT",
SELFSECT: "SELFSECT",
SFILE: "SFILE",
SFILEPATH: "SFILEPATH",
SFUNCTAB: "SFUNCTAB",
SGOFUNC: "SGOFUNC",
SGOSTRING: "SGOSTRING",
SHOSTOBJ: "SHOSTOBJ",
SINITARR: "SINITARR",
SMACHO: "SMACHO",
SMACHOGOT: "SMACHOGOT",
SMACHOINDIRECTGOT: "SMACHOINDIRECTGOT",
SMACHOINDIRECTPLT: "SMACHOINDIRECTPLT",
SMACHOPLT: "SMACHOPLT",
SMACHOSYMSTR: "SMACHOSYMSTR",
SMACHOSYMTAB: "SMACHOSYMTAB",
SNOPTRBSS: "SNOPTRBSS",
SNOPTRDATA: "SNOPTRDATA",
SPCLNTAB: "SPCLNTAB",
SRODATA: "SRODATA",
SSTRING: "SSTRING",
SSYMTAB: "SSYMTAB",
STEXT: "STEXT",
STLSBSS: "STLSBSS",
STYPE: "STYPE",
STYPELINK: "STYPELINK",
SITABLINK: "SITABLINK",
SWINDOWS: "SWINDOWS",
SXREF: "SXREF",
}
func (k SymKind) String() string {
if k < 0 || int(k) >= len(symKindStrings) {
return fmt.Sprintf("SymKind(%d)", k)
}
return symKindStrings[k]
}
// A Sym is a named symbol in an object file.
type Sym struct {
SymID // symbol identifier (name and version)
Kind SymKind // kind of symbol
DupOK bool // are duplicate definitions okay?
Size int // size of corresponding data
Type SymID // symbol for Go type information
Data Data // memory image of symbol
Reloc []Reloc // relocations to apply to Data
Func *Func // additional data for functions
}
// A SymID - the combination of Name and Version - uniquely identifies
// a symbol within a package.
type SymID struct {
// Name is the name of a symbol.
Name string
// Version is zero for symbols with global visibility.
// Symbols with only file visibility (such as file-level static
// declarations in C) have a non-zero version distinguishing
// a symbol in one file from a symbol of the same name
// in another file
Version int
}
func (s SymID) String() string {
if s.Version == 0 {
return s.Name
}
return fmt.Sprintf("%s<%d>", s.Name, s.Version)
}
// A Data is a reference to data stored in an object file.
// It records the offset and size of the data, so that a client can
// read the data only if necessary.
type Data struct {
Offset int64
Size int64
}
// A Reloc describes a relocation applied to a memory image to refer
// to an address within a particular symbol.
type Reloc struct {
// The bytes at [Offset, Offset+Size) within the containing Sym
// should be updated to refer to the address Add bytes after the start
// of the symbol Sym.
Offset int
Size int
Sym SymID
Add int
// The Type records the form of address expected in the bytes
// described by the previous fields: absolute, PC-relative, and so on.
// TODO(rsc): The interpretation of Type is not exposed by this package.
Type obj.RelocType
}
// A Var describes a variable in a function stack frame: a declared
// local variable, an input argument, or an output result.
type Var struct {
// The combination of Name, Kind, and Offset uniquely
// identifies a variable in a function stack frame.
// Using fewer of these - in particular, using only Name - does not.
Name string // Name of variable.
Kind int // TODO(rsc): Define meaning.
Offset int // Frame offset. TODO(rsc): Define meaning.
Type SymID // Go type for variable.
}
// Func contains additional per-symbol information specific to functions.
type Func struct {
Args int // size in bytes of argument frame: inputs and outputs
Frame int // size in bytes of local variable frame
Leaf bool // function omits save of link register (ARM)
NoSplit bool // function omits stack split prologue
Var []Var // detail about local variables
PCSP Data // PC → SP offset map
PCFile Data // PC → file number map (index into File)
PCLine Data // PC → line number map
PCData []Data // PC → runtime support data map
FuncData []FuncData // non-PC-specific runtime support data
File []string // paths indexed by PCFile
}
// TODO: Add PCData []byte and PCDataIter (similar to liblink).
// A FuncData is a single function-specific data value.
type FuncData struct {
Sym SymID // symbol holding data
Offset int64 // offset into symbol for funcdata pointer
}
// A Package is a parsed Go object file or archive defining a Go package.
type Package struct {
ImportPath string // import path denoting this package
Imports []string // packages imported by this package
SymRefs []SymID // list of symbol names and versions referred to by this pack
Syms []*Sym // symbols defined by this package
MaxVersion int // maximum Version in any SymID in Syms
Arch string // architecture
}
var (
archiveHeader = []byte("!<arch>\n")
archiveMagic = []byte("`\n")
goobjHeader = []byte("go objec") // truncated to size of archiveHeader
errCorruptArchive = errors.New("corrupt archive")
errTruncatedArchive = errors.New("truncated archive")
errCorruptObject = errors.New("corrupt object file")
errNotObject = errors.New("unrecognized object file format")
)
// An objReader is an object file reader.
type objReader struct {
p *Package
b *bufio.Reader
f io.ReadSeeker
err error
offset int64
dataOffset int64
limit int64
tmp [256]byte
pkgprefix string
}
// importPathToPrefix returns the prefix that will be used in the
// final symbol table for the given import path.
// We escape '%', '"', all control characters and non-ASCII bytes,
// and any '.' after the final slash.
//
// See ../../../cmd/ld/lib.c:/^pathtoprefix and
// ../../../cmd/gc/subr.c:/^pathtoprefix.
func importPathToPrefix(s string) string {
// find index of last slash, if any, or else -1.
// used for determining whether an index is after the last slash.
slash := strings.LastIndex(s, "/")
// check for chars that need escaping
n := 0
for r := 0; r < len(s); r++ {
if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
n++
}
}
// quick exit
if n == 0 {
return s
}
// escape
const hex = "0123456789abcdef"
p := make([]byte, 0, len(s)+2*n)
for r := 0; r < len(s); r++ {
if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
p = append(p, '%', hex[c>>4], hex[c&0xF])
} else {
p = append(p, c)
}
}
return string(p)
}
// init initializes r to read package p from f.
func (r *objReader) init(f io.ReadSeeker, p *Package) {
r.f = f
r.p = p
r.offset, _ = f.Seek(0, io.SeekCurrent)
r.limit, _ = f.Seek(0, io.SeekEnd)
f.Seek(r.offset, io.SeekStart)
r.b = bufio.NewReader(f)
r.pkgprefix = importPathToPrefix(p.ImportPath) + "."
}
// error records that an error occurred.
// It returns only the first error, so that an error
// caused by an earlier error does not discard information
// about the earlier error.
func (r *objReader) error(err error) error {
if r.err == nil {
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
r.err = err
}
// panic("corrupt") // useful for debugging
return r.err
}
// readByte reads and returns a byte from the input file.
// On I/O error or EOF, it records the error but returns byte 0.
// A sequence of 0 bytes will eventually terminate any
// parsing state in the object file. In particular, it ends the
// reading of a varint.
func (r *objReader) readByte() byte {
if r.err != nil {
return 0
}
if r.offset >= r.limit {
r.error(io.ErrUnexpectedEOF)
return 0
}
b, err := r.b.ReadByte()
if err != nil {
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
r.error(err)
b = 0
} else {
r.offset++
}
return b
}
// read reads exactly len(b) bytes from the input file.
// If an error occurs, read returns the error but also
// records it, so it is safe for callers to ignore the result
// as long as delaying the report is not a problem.
func (r *objReader) readFull(b []byte) error {
if r.err != nil {
return r.err
}
if r.offset+int64(len(b)) > r.limit {
return r.error(io.ErrUnexpectedEOF)
}
n, err := io.ReadFull(r.b, b)
r.offset += int64(n)
if err != nil {
return r.error(err)
}
return nil
}
// readInt reads a zigzag varint from the input file.
func (r *objReader) readInt() int {
var u uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
r.error(errCorruptObject)
return 0
}
c := r.readByte()
u |= uint64(c&0x7F) << shift
if c&0x80 == 0 {
break
}
}
v := int64(u>>1) ^ (int64(u) << 63 >> 63)
if int64(int(v)) != v {
r.error(errCorruptObject) // TODO
return 0
}
return int(v)
}
// readString reads a length-delimited string from the input file.
func (r *objReader) readString() string {
n := r.readInt()
buf := make([]byte, n)
r.readFull(buf)
return string(buf)
}
// readSymID reads a SymID from the input file.
func (r *objReader) readSymID() SymID {
i := r.readInt()
return r.p.SymRefs[i]
}
func (r *objReader) readRef() {
name, vers := r.readString(), r.readInt()
// In a symbol name in an object file, "". denotes the
// prefix for the package in which the object file has been found.
// Expand it.
name = strings.Replace(name, `"".`, r.pkgprefix, -1)
// An individual object file only records version 0 (extern) or 1 (static).
// To make static symbols unique across all files being read, we
// replace version 1 with the version corresponding to the current
// file number. The number is incremented on each call to parseObject.
if vers != 0 {
vers = r.p.MaxVersion
}
r.p.SymRefs = append(r.p.SymRefs, SymID{name, vers})
}
// readData reads a data reference from the input file.
func (r *objReader) readData() Data {
n := r.readInt()
d := Data{Offset: r.dataOffset, Size: int64(n)}
r.dataOffset += int64(n)
return d
}
// skip skips n bytes in the input.
func (r *objReader) skip(n int64) {
if n < 0 {
r.error(fmt.Errorf("debug/goobj: internal error: misuse of skip"))
}
if n < int64(len(r.tmp)) {
// Since the data is so small, a just reading from the buffered
// reader is better than flushing the buffer and seeking.
r.readFull(r.tmp[:n])
} else if n <= int64(r.b.Buffered()) {
// Even though the data is not small, it has already been read.
// Advance the buffer instead of seeking.
for n > int64(len(r.tmp)) {
r.readFull(r.tmp[:])
n -= int64(len(r.tmp))
}
r.readFull(r.tmp[:n])
} else {
// Seek, giving up buffered data.
_, err := r.f.Seek(r.offset+n, io.SeekStart)
if err != nil {
r.error(err)
}
r.offset += n
r.b.Reset(r.f)
}
}
// Parse parses an object file or archive from r,
// assuming that its import path is pkgpath.
func Parse(r io.ReadSeeker, pkgpath string) (*Package, error) {
if pkgpath == "" {
pkgpath = `""`
}
p := new(Package)
p.ImportPath = pkgpath
var rd objReader
rd.init(r, p)
err := rd.readFull(rd.tmp[:8])
if err != nil {
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
return nil, err
}
switch {
default:
return nil, errNotObject
case bytes.Equal(rd.tmp[:8], archiveHeader):
if err := rd.parseArchive(); err != nil {
return nil, err
}
case bytes.Equal(rd.tmp[:8], goobjHeader):
if err := rd.parseObject(goobjHeader); err != nil {
return nil, err
}
}
return p, nil
}
// trimSpace removes trailing spaces from b and returns the corresponding string.
// This effectively parses the form used in archive headers.
func trimSpace(b []byte) string {
return string(bytes.TrimRight(b, " "))
}
// parseArchive parses a Unix archive of Go object files.
// TODO(rsc): Need to skip non-Go object files.
// TODO(rsc): Maybe record table of contents in r.p so that
// linker can avoid having code to parse archives too.
func (r *objReader) parseArchive() error {
for r.offset < r.limit {
if err := r.readFull(r.tmp[:60]); err != nil {
return err
}
data := r.tmp[:60]
// Each file is preceded by this text header (slice indices in first column):
// 0:16 name
// 16:28 date
// 28:34 uid
// 34:40 gid
// 40:48 mode
// 48:58 size
// 58:60 magic - `\n
// We only care about name, size, and magic.
// The fields are space-padded on the right.
// The size is in decimal.
// The file data - size bytes - follows the header.
// Headers are 2-byte aligned, so if size is odd, an extra padding
// byte sits between the file data and the next header.
// The file data that follows is padded to an even number of bytes:
// if size is odd, an extra padding byte is inserted betw the next header.
if len(data) < 60 {
return errTruncatedArchive
}
if !bytes.Equal(data[58:60], archiveMagic) {
return errCorruptArchive
}
name := trimSpace(data[0:16])
size, err := strconv.ParseInt(trimSpace(data[48:58]), 10, 64)
if err != nil {
return errCorruptArchive
}
data = data[60:]
fsize := size + size&1
if fsize < 0 || fsize < size {
return errCorruptArchive
}
switch name {
case "__.PKGDEF":
r.skip(size)
default:
oldLimit := r.limit
r.limit = r.offset + size
if err := r.parseObject(nil); err != nil {
return fmt.Errorf("parsing archive member %q: %v", name, err)
}
r.skip(r.limit - r.offset)
r.limit = oldLimit
}
if size&1 != 0 {
r.skip(1)
}
}
return nil
}
// parseObject parses a single Go object file.
// The prefix is the bytes already read from the file,
// typically in order to detect that this is an object file.
// The object file consists of a textual header ending in "\n!\n"
// and then the part we want to parse begins.
// The format of that part is defined in a comment at the top
// of src/liblink/objfile.c.
func (r *objReader) parseObject(prefix []byte) error {
r.p.MaxVersion++
h := make([]byte, 0, 256)
h = append(h, prefix...)
var c1, c2, c3 byte
for {
c1, c2, c3 = c2, c3, r.readByte()
h = append(h, c3)
// The new export format can contain 0 bytes.
// Don't consider them errors, only look for r.err != nil.
if r.err != nil {
return errCorruptObject
}
if c1 == '\n' && c2 == '!' && c3 == '\n' {
break
}
}
hs := strings.Fields(string(h))
if len(hs) >= 4 {
r.p.Arch = hs[3]
}
// TODO: extract OS + build ID if/when we need it
r.readFull(r.tmp[:8])
if !bytes.Equal(r.tmp[:8], []byte("\x00\x00go17ld")) {
return r.error(errCorruptObject)
}
b := r.readByte()
if b != 1 {
return r.error(errCorruptObject)
}
// Direct package dependencies.
for {
s := r.readString()
if s == "" {
break
}
r.p.Imports = append(r.p.Imports, s)
}
r.p.SymRefs = []SymID{{"", 0}}
for {
if b := r.readByte(); b != 0xfe {
if b != 0xff {
return r.error(errCorruptObject)
}
break
}
r.readRef()
}
dataLength := r.readInt()
r.readInt() // n relocations - ignore
r.readInt() // n pcdata - ignore
r.readInt() // n autom - ignore
r.readInt() // n funcdata - ignore
r.readInt() // n files - ignore
r.dataOffset = r.offset
r.skip(int64(dataLength))
// Symbols.
for {
if b := r.readByte(); b != 0xfe {
if b != 0xff {
return r.error(errCorruptObject)
}
break
}
typ := r.readInt()
s := &Sym{SymID: r.readSymID()}
r.p.Syms = append(r.p.Syms, s)
s.Kind = SymKind(typ)
flags := r.readInt()
s.DupOK = flags&1 != 0
s.Size = r.readInt()
s.Type = r.readSymID()
s.Data = r.readData()
s.Reloc = make([]Reloc, r.readInt())
for i := range s.Reloc {
rel := &s.Reloc[i]
rel.Offset = r.readInt()
rel.Size = r.readInt()
rel.Type = obj.RelocType(r.readInt())
rel.Add = r.readInt()
rel.Sym = r.readSymID()
}
if s.Kind == STEXT {
f := new(Func)
s.Func = f
f.Args = r.readInt()
f.Frame = r.readInt()
flags := r.readInt()
f.Leaf = flags&1 != 0
f.NoSplit = r.readInt() != 0
f.Var = make([]Var, r.readInt())
for i := range f.Var {
v := &f.Var[i]
v.Name = r.readSymID().Name
v.Offset = r.readInt()
v.Kind = r.readInt()
v.Type = r.readSymID()
}
f.PCSP = r.readData()
f.PCFile = r.readData()
f.PCLine = r.readData()
f.PCData = make([]Data, r.readInt())
for i := range f.PCData {
f.PCData[i] = r.readData()
}
f.FuncData = make([]FuncData, r.readInt())
for i := range f.FuncData {
f.FuncData[i].Sym = r.readSymID()
}
for i := range f.FuncData {
f.FuncData[i].Offset = int64(r.readInt()) // TODO
}
f.File = make([]string, r.readInt())
for i := range f.File {
f.File[i] = r.readSymID().Name
}
}
}
r.readFull(r.tmp[:7])
if !bytes.Equal(r.tmp[:7], []byte("\xffgo17ld")) {
return r.error(errCorruptObject)
}
return nil
}
func (r *Reloc) String(insnOffset uint64) string {
delta := r.Offset - int(insnOffset)
s := fmt.Sprintf("[%d:%d]%s", delta, delta+r.Size, r.Type)
if r.Sym.Name != "" {
if r.Add != 0 {
return fmt.Sprintf("%s:%s+%d", s, r.Sym.Name, r.Add)
}
return fmt.Sprintf("%s:%s", s, r.Sym.Name)
}
if r.Add != 0 {
return fmt.Sprintf("%s:%d", s, r.Add)
}
return s
}

28
vendor/github.com/google/gops/internal/goobj/read_test.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package goobj
import "testing"
var importPathToPrefixTests = []struct {
in string
out string
}{
{"runtime", "runtime"},
{"sync/atomic", "sync/atomic"},
{"golang.org/x/tools/godoc", "golang.org/x/tools/godoc"},
{"foo.bar/baz.quux", "foo.bar/baz%2equux"},
{"", ""},
{"%foo%bar", "%25foo%25bar"},
{"\x01\x00\x7F☺", "%01%00%7f%e2%98%ba"},
}
func TestImportPathToPrefix(t *testing.T) {
for _, tt := range importPathToPrefixTests {
if out := importPathToPrefix(tt.in); out != tt.out {
t.Errorf("importPathToPrefix(%q) = %q, want %q", tt.in, out, tt.out)
}
}
}

27
vendor/github.com/google/gops/internal/obj/addrtype_string.go generated vendored Normal file
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// Code generated by "stringer -type AddrType cmd/internal/obj"; DO NOT EDIT
package obj
import "fmt"
const (
_AddrType_name_0 = "TYPE_NONE"
_AddrType_name_1 = "TYPE_BRANCHTYPE_TEXTSIZETYPE_MEMTYPE_CONSTTYPE_FCONSTTYPE_SCONSTTYPE_REGTYPE_ADDRTYPE_SHIFTTYPE_REGREGTYPE_REGREG2TYPE_INDIRTYPE_REGLIST"
)
var (
_AddrType_index_0 = [...]uint8{0, 9}
_AddrType_index_1 = [...]uint8{0, 11, 24, 32, 42, 53, 64, 72, 81, 91, 102, 114, 124, 136}
)
func (i AddrType) String() string {
switch {
case i == 0:
return _AddrType_name_0
case 6 <= i && i <= 18:
i -= 6
return _AddrType_name_1[_AddrType_index_1[i]:_AddrType_index_1[i+1]]
default:
return fmt.Sprintf("AddrType(%d)", i)
}
}

338
vendor/github.com/google/gops/internal/obj/arm/a.out.go generated vendored Normal file
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// Inferno utils/5c/5.out.h
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5c/5.out.h
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package arm
import "github.com/google/gops/internal/obj"
//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p arm
const (
NSNAME = 8
NSYM = 50
NREG = 16
)
/* -1 disables use of REGARG */
const (
REGARG = -1
)
const (
REG_R0 = obj.RBaseARM + iota // must be 16-aligned
REG_R1
REG_R2
REG_R3
REG_R4
REG_R5
REG_R6
REG_R7
REG_R8
REG_R9
REG_R10
REG_R11
REG_R12
REG_R13
REG_R14
REG_R15
REG_F0 // must be 16-aligned
REG_F1
REG_F2
REG_F3
REG_F4
REG_F5
REG_F6
REG_F7
REG_F8
REG_F9
REG_F10
REG_F11
REG_F12
REG_F13
REG_F14
REG_F15
REG_FPSR // must be 2-aligned
REG_FPCR
REG_CPSR // must be 2-aligned
REG_SPSR
MAXREG
REGRET = REG_R0
/* compiler allocates R1 up as temps */
/* compiler allocates register variables R3 up */
/* compiler allocates external registers R10 down */
REGEXT = REG_R10
/* these two registers are declared in runtime.h */
REGG = REGEXT - 0
REGM = REGEXT - 1
REGCTXT = REG_R7
REGTMP = REG_R11
REGSP = REG_R13
REGLINK = REG_R14
REGPC = REG_R15
NFREG = 16
/* compiler allocates register variables F0 up */
/* compiler allocates external registers F7 down */
FREGRET = REG_F0
FREGEXT = REG_F7
FREGTMP = REG_F15
)
const (
C_NONE = iota
C_REG
C_REGREG
C_REGREG2
C_REGLIST
C_SHIFT
C_FREG
C_PSR
C_FCR
C_RCON /* 0xff rotated */
C_NCON /* ~RCON */
C_SCON /* 0xffff */
C_LCON
C_LCONADDR
C_ZFCON
C_SFCON
C_LFCON
C_RACON
C_LACON
C_SBRA
C_LBRA
C_HAUTO /* halfword insn offset (-0xff to 0xff) */
C_FAUTO /* float insn offset (0 to 0x3fc, word aligned) */
C_HFAUTO /* both H and F */
C_SAUTO /* -0xfff to 0xfff */
C_LAUTO
C_HOREG
C_FOREG
C_HFOREG
C_SOREG
C_ROREG
C_SROREG /* both nil and R */
C_LOREG
C_PC
C_SP
C_HREG
C_ADDR /* reference to relocatable address */
// TLS "var" in local exec mode: will become a constant offset from
// thread local base that is ultimately chosen by the program linker.
C_TLS_LE
// TLS "var" in initial exec mode: will become a memory address (chosen
// by the program linker) that the dynamic linker will fill with the
// offset from the thread local base.
C_TLS_IE
C_TEXTSIZE
C_GOK
C_NCLASS /* must be the last */
)
const (
AAND = obj.ABaseARM + obj.A_ARCHSPECIFIC + iota
AEOR
ASUB
ARSB
AADD
AADC
ASBC
ARSC
ATST
ATEQ
ACMP
ACMN
AORR
ABIC
AMVN
/*
* Do not reorder or fragment the conditional branch
* opcodes, or the predication code will break
*/
ABEQ
ABNE
ABCS
ABHS
ABCC
ABLO
ABMI
ABPL
ABVS
ABVC
ABHI
ABLS
ABGE
ABLT
ABGT
ABLE
AMOVWD
AMOVWF
AMOVDW
AMOVFW
AMOVFD
AMOVDF
AMOVF
AMOVD
ACMPF
ACMPD
AADDF
AADDD
ASUBF
ASUBD
AMULF
AMULD
ADIVF
ADIVD
ASQRTF
ASQRTD
AABSF
AABSD
ANEGF
ANEGD
ASRL
ASRA
ASLL
AMULU
ADIVU
AMUL
ADIV
AMOD
AMODU
AMOVB
AMOVBS
AMOVBU
AMOVH
AMOVHS
AMOVHU
AMOVW
AMOVM
ASWPBU
ASWPW
ARFE
ASWI
AMULA
AWORD
AMULL
AMULAL
AMULLU
AMULALU
ABX
ABXRET
ADWORD
ALDREX
ASTREX
ALDREXD
ASTREXD
APLD
ACLZ
AMULWT
AMULWB
AMULAWT
AMULAWB
ADATABUNDLE
ADATABUNDLEEND
AMRC // MRC/MCR
ALAST
// aliases
AB = obj.AJMP
ABL = obj.ACALL
)
/* scond byte */
const (
C_SCOND = (1 << 4) - 1
C_SBIT = 1 << 4
C_PBIT = 1 << 5
C_WBIT = 1 << 6
C_FBIT = 1 << 7 /* psr flags-only */
C_UBIT = 1 << 7 /* up bit, unsigned bit */
// These constants are the ARM condition codes encodings,
// XORed with 14 so that C_SCOND_NONE has value 0,
// so that a zeroed Prog.scond means "always execute".
C_SCOND_XOR = 14
C_SCOND_EQ = 0 ^ C_SCOND_XOR
C_SCOND_NE = 1 ^ C_SCOND_XOR
C_SCOND_HS = 2 ^ C_SCOND_XOR
C_SCOND_LO = 3 ^ C_SCOND_XOR
C_SCOND_MI = 4 ^ C_SCOND_XOR
C_SCOND_PL = 5 ^ C_SCOND_XOR
C_SCOND_VS = 6 ^ C_SCOND_XOR
C_SCOND_VC = 7 ^ C_SCOND_XOR
C_SCOND_HI = 8 ^ C_SCOND_XOR
C_SCOND_LS = 9 ^ C_SCOND_XOR
C_SCOND_GE = 10 ^ C_SCOND_XOR
C_SCOND_LT = 11 ^ C_SCOND_XOR
C_SCOND_GT = 12 ^ C_SCOND_XOR
C_SCOND_LE = 13 ^ C_SCOND_XOR
C_SCOND_NONE = 14 ^ C_SCOND_XOR
C_SCOND_NV = 15 ^ C_SCOND_XOR
/* D_SHIFT type */
SHIFT_LL = 0 << 5
SHIFT_LR = 1 << 5
SHIFT_AR = 2 << 5
SHIFT_RR = 3 << 5
)

108
vendor/github.com/google/gops/internal/obj/arm/anames.go generated vendored Normal file
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// Generated by stringer -i a.out.go -o anames.go -p arm
// Do not edit.
package arm
import "github.com/google/gops/internal/obj"
var Anames = []string{
obj.A_ARCHSPECIFIC: "AND",
"EOR",
"SUB",
"RSB",
"ADD",
"ADC",
"SBC",
"RSC",
"TST",
"TEQ",
"CMP",
"CMN",
"ORR",
"BIC",
"MVN",
"BEQ",
"BNE",
"BCS",
"BHS",
"BCC",
"BLO",
"BMI",
"BPL",
"BVS",
"BVC",
"BHI",
"BLS",
"BGE",
"BLT",
"BGT",
"BLE",
"MOVWD",
"MOVWF",
"MOVDW",
"MOVFW",
"MOVFD",
"MOVDF",
"MOVF",
"MOVD",
"CMPF",
"CMPD",
"ADDF",
"ADDD",
"SUBF",
"SUBD",
"MULF",
"MULD",
"DIVF",
"DIVD",
"SQRTF",
"SQRTD",
"ABSF",
"ABSD",
"NEGF",
"NEGD",
"SRL",
"SRA",
"SLL",
"MULU",
"DIVU",
"MUL",
"DIV",
"MOD",
"MODU",
"MOVB",
"MOVBS",
"MOVBU",
"MOVH",
"MOVHS",
"MOVHU",
"MOVW",
"MOVM",
"SWPBU",
"SWPW",
"RFE",
"SWI",
"MULA",
"WORD",
"MULL",
"MULAL",
"MULLU",
"MULALU",
"BX",
"BXRET",
"DWORD",
"LDREX",
"STREX",
"LDREXD",
"STREXD",
"PLD",
"CLZ",
"MULWT",
"MULWB",
"MULAWT",
"MULAWB",
"DATABUNDLE",
"DATABUNDLEEND",
"MRC",
"LAST",
}

73
vendor/github.com/google/gops/internal/obj/arm/anames5.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package arm
var cnames5 = []string{
"NONE",
"REG",
"REGREG",
"REGREG2",
"REGLIST",
"SHIFT",
"FREG",
"PSR",
"FCR",
"RCON",
"NCON",
"SCON",
"LCON",
"LCONADDR",
"ZFCON",
"SFCON",
"LFCON",
"RACON",
"LACON",
"SBRA",
"LBRA",
"HAUTO",
"FAUTO",
"HFAUTO",
"SAUTO",
"LAUTO",
"HOREG",
"FOREG",
"HFOREG",
"SOREG",
"ROREG",
"SROREG",
"LOREG",
"PC",
"SP",
"HREG",
"ADDR",
"C_TLS_LE",
"C_TLS_IE",
"TEXTSIZE",
"GOK",
"NCLASS",
"SCOND = (1<<4)-1",
"SBIT = 1<<4",
"PBIT = 1<<5",
"WBIT = 1<<6",
"FBIT = 1<<7",
"UBIT = 1<<7",
"SCOND_XOR = 14",
"SCOND_EQ = 0 ^ C_SCOND_XOR",
"SCOND_NE = 1 ^ C_SCOND_XOR",
"SCOND_HS = 2 ^ C_SCOND_XOR",
"SCOND_LO = 3 ^ C_SCOND_XOR",
"SCOND_MI = 4 ^ C_SCOND_XOR",
"SCOND_PL = 5 ^ C_SCOND_XOR",
"SCOND_VS = 6 ^ C_SCOND_XOR",
"SCOND_VC = 7 ^ C_SCOND_XOR",
"SCOND_HI = 8 ^ C_SCOND_XOR",
"SCOND_LS = 9 ^ C_SCOND_XOR",
"SCOND_GE = 10 ^ C_SCOND_XOR",
"SCOND_LT = 11 ^ C_SCOND_XOR",
"SCOND_GT = 12 ^ C_SCOND_XOR",
"SCOND_LE = 13 ^ C_SCOND_XOR",
"SCOND_NONE = 14 ^ C_SCOND_XOR",
"SCOND_NV = 15 ^ C_SCOND_XOR",
}

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vendor/github.com/google/gops/internal/obj/arm/asm5.go generated vendored Normal file
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vendor/github.com/google/gops/internal/obj/arm/list5.go generated vendored Normal file
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// Inferno utils/5c/list.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/5c/list.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package arm
import (
"fmt"
"github.com/google/gops/internal/obj"
)
func init() {
obj.RegisterRegister(obj.RBaseARM, MAXREG, Rconv)
obj.RegisterOpcode(obj.ABaseARM, Anames)
}
func Rconv(r int) string {
if r == 0 {
return "NONE"
}
if r == REGG {
// Special case.
return "g"
}
if REG_R0 <= r && r <= REG_R15 {
return fmt.Sprintf("R%d", r-REG_R0)
}
if REG_F0 <= r && r <= REG_F15 {
return fmt.Sprintf("F%d", r-REG_F0)
}
switch r {
case REG_FPSR:
return "FPSR"
case REG_FPCR:
return "FPCR"
case REG_CPSR:
return "CPSR"
case REG_SPSR:
return "SPSR"
}
return fmt.Sprintf("Rgok(%d)", r-obj.RBaseARM)
}
func DRconv(a int) string {
s := "C_??"
if a >= C_NONE && a <= C_NCLASS {
s = cnames5[a]
}
var fp string
fp += s
return fp
}

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// cmd/7c/7.out.h from Vita Nuova.
// https://code.google.com/p/ken-cc/source/browse/src/cmd/7c/7.out.h
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package arm64
import "github.com/google/gops/internal/obj"
const (
NSNAME = 8
NSYM = 50
NREG = 32 /* number of general registers */
NFREG = 32 /* number of floating point registers */
)
// General purpose registers, kept in the low bits of Prog.Reg.
const (
// integer
REG_R0 = obj.RBaseARM64 + iota
REG_R1
REG_R2
REG_R3
REG_R4
REG_R5
REG_R6
REG_R7
REG_R8
REG_R9
REG_R10
REG_R11
REG_R12
REG_R13
REG_R14
REG_R15
REG_R16
REG_R17
REG_R18
REG_R19
REG_R20
REG_R21
REG_R22
REG_R23
REG_R24
REG_R25
REG_R26
REG_R27
REG_R28
REG_R29
REG_R30
REG_R31
// scalar floating point
REG_F0
REG_F1
REG_F2
REG_F3
REG_F4
REG_F5
REG_F6
REG_F7
REG_F8
REG_F9
REG_F10
REG_F11
REG_F12
REG_F13
REG_F14
REG_F15
REG_F16
REG_F17
REG_F18
REG_F19
REG_F20
REG_F21
REG_F22
REG_F23
REG_F24
REG_F25
REG_F26
REG_F27
REG_F28
REG_F29
REG_F30
REG_F31
// SIMD
REG_V0
REG_V1
REG_V2
REG_V3
REG_V4
REG_V5
REG_V6
REG_V7
REG_V8
REG_V9
REG_V10
REG_V11
REG_V12
REG_V13
REG_V14
REG_V15
REG_V16
REG_V17
REG_V18
REG_V19
REG_V20
REG_V21
REG_V22
REG_V23
REG_V24
REG_V25
REG_V26
REG_V27
REG_V28
REG_V29
REG_V30
REG_V31
// The EQ in
// CSET EQ, R0
// is encoded as TYPE_REG, even though it's not really a register.
COND_EQ
COND_NE
COND_HS
COND_LO
COND_MI
COND_PL
COND_VS
COND_VC
COND_HI
COND_LS
COND_GE
COND_LT
COND_GT
COND_LE
COND_AL
COND_NV
REG_RSP = REG_V31 + 32 // to differentiate ZR/SP, REG_RSP&0x1f = 31
)
// Not registers, but flags that can be combined with regular register
// constants to indicate extended register conversion. When checking,
// you should subtract obj.RBaseARM64 first. From this difference, bit 11
// indicates extended register, bits 8-10 select the conversion mode.
const REG_EXT = obj.RBaseARM64 + 1<<11
const (
REG_UXTB = REG_EXT + iota<<8
REG_UXTH
REG_UXTW
REG_UXTX
REG_SXTB
REG_SXTH
REG_SXTW
REG_SXTX
)
// Special registers, after subtracting obj.RBaseARM64, bit 12 indicates
// a special register and the low bits select the register.
const (
REG_SPECIAL = obj.RBaseARM64 + 1<<12 + iota
REG_DAIF
REG_NZCV
REG_FPSR
REG_FPCR
REG_SPSR_EL1
REG_ELR_EL1
REG_SPSR_EL2
REG_ELR_EL2
REG_CurrentEL
REG_SP_EL0
REG_SPSel
REG_DAIFSet
REG_DAIFClr
)
// Register assignments:
//
// compiler allocates R0 up as temps
// compiler allocates register variables R7-R25
// compiler allocates external registers R26 down
//
// compiler allocates register variables F7-F26
// compiler allocates external registers F26 down
const (
REGMIN = REG_R7 // register variables allocated from here to REGMAX
REGRT1 = REG_R16 // ARM64 IP0, for external linker, runtime, duffzero and duffcopy
REGRT2 = REG_R17 // ARM64 IP1, for external linker, runtime, duffcopy
REGPR = REG_R18 // ARM64 platform register, unused in the Go toolchain
REGMAX = REG_R25
REGCTXT = REG_R26 // environment for closures
REGTMP = REG_R27 // reserved for liblink
REGG = REG_R28 // G
REGFP = REG_R29 // frame pointer, unused in the Go toolchain
REGLINK = REG_R30
// ARM64 uses R31 as both stack pointer and zero register,
// depending on the instruction. To differentiate RSP from ZR,
// we use a different numeric value for REGZERO and REGSP.
REGZERO = REG_R31
REGSP = REG_RSP
FREGRET = REG_F0
FREGMIN = REG_F7 // first register variable
FREGMAX = REG_F26 // last register variable for 7g only
FREGEXT = REG_F26 // first external register
)
const (
BIG = 2048 - 8
)
const (
/* mark flags */
LABEL = 1 << iota
LEAF
FLOAT
BRANCH
LOAD
FCMP
SYNC
LIST
FOLL
NOSCHED
)
const (
C_NONE = iota
C_REG // R0..R30
C_RSP // R0..R30, RSP
C_FREG // F0..F31
C_VREG // V0..V31
C_PAIR // (Rn, Rm)
C_SHIFT // Rn<<2
C_EXTREG // Rn.UXTB<<3
C_SPR // REG_NZCV
C_COND // EQ, NE, etc
C_ZCON // $0 or ZR
C_ADDCON0 // 12-bit unsigned, unshifted
C_ADDCON // 12-bit unsigned, shifted left by 0 or 12
C_MOVCON // generated by a 16-bit constant, optionally inverted and/or shifted by multiple of 16
C_BITCON // bitfield and logical immediate masks
C_ABCON0 // could be C_ADDCON0 or C_BITCON
C_ABCON // could be C_ADDCON or C_BITCON
C_MBCON // could be C_MOVCON or C_BITCON
C_LCON // 32-bit constant
C_VCON // 64-bit constant
C_FCON // floating-point constant
C_VCONADDR // 64-bit memory address
C_AACON // ADDCON offset in auto constant $a(FP)
C_LACON // 32-bit offset in auto constant $a(FP)
C_AECON // ADDCON offset in extern constant $e(SB)
// TODO(aram): only one branch class should be enough
C_SBRA // for TYPE_BRANCH
C_LBRA
C_NPAUTO // -512 <= x < 0, 0 mod 8
C_NSAUTO // -256 <= x < 0
C_PSAUTO // 0 to 255
C_PPAUTO // 0 to 504, 0 mod 8
C_UAUTO4K // 0 to 4095
C_UAUTO8K // 0 to 8190, 0 mod 2
C_UAUTO16K // 0 to 16380, 0 mod 4
C_UAUTO32K // 0 to 32760, 0 mod 8
C_UAUTO64K // 0 to 65520, 0 mod 16
C_LAUTO // any other 32-bit constant
C_SEXT1 // 0 to 4095, direct
C_SEXT2 // 0 to 8190
C_SEXT4 // 0 to 16380
C_SEXT8 // 0 to 32760
C_SEXT16 // 0 to 65520
C_LEXT
// TODO(aram): s/AUTO/INDIR/
C_ZOREG // 0(R)
C_NPOREG // mirror NPAUTO, etc
C_NSOREG
C_PSOREG
C_PPOREG
C_UOREG4K
C_UOREG8K
C_UOREG16K
C_UOREG32K
C_UOREG64K
C_LOREG
C_ADDR // TODO(aram): explain difference from C_VCONADDR
// The GOT slot for a symbol in -dynlink mode.
C_GOTADDR
// TLS "var" in local exec mode: will become a constant offset from
// thread local base that is ultimately chosen by the program linker.
C_TLS_LE
// TLS "var" in initial exec mode: will become a memory address (chosen
// by the program linker) that the dynamic linker will fill with the
// offset from the thread local base.
C_TLS_IE
C_ROFF // register offset (including register extended)
C_GOK
C_TEXTSIZE
C_NCLASS // must be last
)
const (
C_XPRE = 1 << 6 // match arm.C_WBIT, so Prog.String know how to print it
C_XPOST = 1 << 5 // match arm.C_PBIT, so Prog.String know how to print it
)
//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p arm64
const (
AADC = obj.ABaseARM64 + obj.A_ARCHSPECIFIC + iota
AADCS
AADCSW
AADCW
AADD
AADDS
AADDSW
AADDW
AADR
AADRP
AAND
AANDS
AANDSW
AANDW
AASR
AASRW
AAT
ABFI
ABFIW
ABFM
ABFMW
ABFXIL
ABFXILW
ABIC
ABICS
ABICSW
ABICW
ABRK
ACBNZ
ACBNZW
ACBZ
ACBZW
ACCMN
ACCMNW
ACCMP
ACCMPW
ACINC
ACINCW
ACINV
ACINVW
ACLREX
ACLS
ACLSW
ACLZ
ACLZW
ACMN
ACMNW
ACMP
ACMPW
ACNEG
ACNEGW
ACRC32B
ACRC32CB
ACRC32CH
ACRC32CW
ACRC32CX
ACRC32H
ACRC32W
ACRC32X
ACSEL
ACSELW
ACSET
ACSETM
ACSETMW
ACSETW
ACSINC
ACSINCW
ACSINV
ACSINVW
ACSNEG
ACSNEGW
ADC
ADCPS1
ADCPS2
ADCPS3
ADMB
ADRPS
ADSB
AEON
AEONW
AEOR
AEORW
AERET
AEXTR
AEXTRW
AHINT
AHLT
AHVC
AIC
AISB
ALDAR
ALDARB
ALDARH
ALDARW
ALDAXP
ALDAXPW
ALDAXR
ALDAXRB
ALDAXRH
ALDAXRW
ALDP
ALDXR
ALDXRB
ALDXRH
ALDXRW
ALDXP
ALDXPW
ALSL
ALSLW
ALSR
ALSRW
AMADD
AMADDW
AMNEG
AMNEGW
AMOVK
AMOVKW
AMOVN
AMOVNW
AMOVZ
AMOVZW
AMRS
AMSR
AMSUB
AMSUBW
AMUL
AMULW
AMVN
AMVNW
ANEG
ANEGS
ANEGSW
ANEGW
ANGC
ANGCS
ANGCSW
ANGCW
AORN
AORNW
AORR
AORRW
APRFM
APRFUM
ARBIT
ARBITW
AREM
AREMW
AREV
AREV16
AREV16W
AREV32
AREVW
AROR
ARORW
ASBC
ASBCS
ASBCSW
ASBCW
ASBFIZ
ASBFIZW
ASBFM
ASBFMW
ASBFX
ASBFXW
ASDIV
ASDIVW
ASEV
ASEVL
ASMADDL
ASMC
ASMNEGL
ASMSUBL
ASMULH
ASMULL
ASTXR
ASTXRB
ASTXRH
ASTXP
ASTXPW
ASTXRW
ASTLP
ASTLPW
ASTLR
ASTLRB
ASTLRH
ASTLRW
ASTLXP
ASTLXPW
ASTLXR
ASTLXRB
ASTLXRH
ASTLXRW
ASTP
ASUB
ASUBS
ASUBSW
ASUBW
ASVC
ASXTB
ASXTBW
ASXTH
ASXTHW
ASXTW
ASYS
ASYSL
ATBNZ
ATBZ
ATLBI
ATST
ATSTW
AUBFIZ
AUBFIZW
AUBFM
AUBFMW
AUBFX
AUBFXW
AUDIV
AUDIVW
AUMADDL
AUMNEGL
AUMSUBL
AUMULH
AUMULL
AUREM
AUREMW
AUXTB
AUXTH
AUXTW
AUXTBW
AUXTHW
AWFE
AWFI
AYIELD
AMOVB
AMOVBU
AMOVH
AMOVHU
AMOVW
AMOVWU
AMOVD
AMOVNP
AMOVNPW
AMOVP
AMOVPD
AMOVPQ
AMOVPS
AMOVPSW
AMOVPW
ABEQ
ABNE
ABCS
ABHS
ABCC
ABLO
ABMI
ABPL
ABVS
ABVC
ABHI
ABLS
ABGE
ABLT
ABGT
ABLE
AFABSD
AFABSS
AFADDD
AFADDS
AFCCMPD
AFCCMPED
AFCCMPS
AFCCMPES
AFCMPD
AFCMPED
AFCMPES
AFCMPS
AFCVTSD
AFCVTDS
AFCVTZSD
AFCVTZSDW
AFCVTZSS
AFCVTZSSW
AFCVTZUD
AFCVTZUDW
AFCVTZUS
AFCVTZUSW
AFDIVD
AFDIVS
AFMOVD
AFMOVS
AFMULD
AFMULS
AFNEGD
AFNEGS
AFSQRTD
AFSQRTS
AFSUBD
AFSUBS
ASCVTFD
ASCVTFS
ASCVTFWD
ASCVTFWS
AUCVTFD
AUCVTFS
AUCVTFWD
AUCVTFWS
AWORD
ADWORD
AFCSELS
AFCSELD
AFMAXS
AFMINS
AFMAXD
AFMIND
AFMAXNMS
AFMAXNMD
AFNMULS
AFNMULD
AFRINTNS
AFRINTND
AFRINTPS
AFRINTPD
AFRINTMS
AFRINTMD
AFRINTZS
AFRINTZD
AFRINTAS
AFRINTAD
AFRINTXS
AFRINTXD
AFRINTIS
AFRINTID
AFMADDS
AFMADDD
AFMSUBS
AFMSUBD
AFNMADDS
AFNMADDD
AFNMSUBS
AFNMSUBD
AFMINNMS
AFMINNMD
AFCVTDH
AFCVTHS
AFCVTHD
AFCVTSH
AAESD
AAESE
AAESIMC
AAESMC
ASHA1C
ASHA1H
ASHA1M
ASHA1P
ASHA1SU0
ASHA1SU1
ASHA256H
ASHA256H2
ASHA256SU0
ASHA256SU1
ALAST
AB = obj.AJMP
ABL = obj.ACALL
)
const (
// shift types
SHIFT_LL = 0 << 22
SHIFT_LR = 1 << 22
SHIFT_AR = 2 << 22
)

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// Generated by stringer -i a.out.go -o anames.go -p arm64
// Do not edit.
package arm64
import "github.com/google/gops/internal/obj"
var Anames = []string{
obj.A_ARCHSPECIFIC: "ADC",
"ADCS",
"ADCSW",
"ADCW",
"ADD",
"ADDS",
"ADDSW",
"ADDW",
"ADR",
"ADRP",
"AND",
"ANDS",
"ANDSW",
"ANDW",
"ASR",
"ASRW",
"AT",
"BFI",
"BFIW",
"BFM",
"BFMW",
"BFXIL",
"BFXILW",
"BIC",
"BICS",
"BICSW",
"BICW",
"BRK",
"CBNZ",
"CBNZW",
"CBZ",
"CBZW",
"CCMN",
"CCMNW",
"CCMP",
"CCMPW",
"CINC",
"CINCW",
"CINV",
"CINVW",
"CLREX",
"CLS",
"CLSW",
"CLZ",
"CLZW",
"CMN",
"CMNW",
"CMP",
"CMPW",
"CNEG",
"CNEGW",
"CRC32B",
"CRC32CB",
"CRC32CH",
"CRC32CW",
"CRC32CX",
"CRC32H",
"CRC32W",
"CRC32X",
"CSEL",
"CSELW",
"CSET",
"CSETM",
"CSETMW",
"CSETW",
"CSINC",
"CSINCW",
"CSINV",
"CSINVW",
"CSNEG",
"CSNEGW",
"DC",
"DCPS1",
"DCPS2",
"DCPS3",
"DMB",
"DRPS",
"DSB",
"EON",
"EONW",
"EOR",
"EORW",
"ERET",
"EXTR",
"EXTRW",
"HINT",
"HLT",
"HVC",
"IC",
"ISB",
"LDAR",
"LDARB",
"LDARH",
"LDARW",
"LDAXP",
"LDAXPW",
"LDAXR",
"LDAXRB",
"LDAXRH",
"LDAXRW",
"LDP",
"LDXR",
"LDXRB",
"LDXRH",
"LDXRW",
"LDXP",
"LDXPW",
"LSL",
"LSLW",
"LSR",
"LSRW",
"MADD",
"MADDW",
"MNEG",
"MNEGW",
"MOVK",
"MOVKW",
"MOVN",
"MOVNW",
"MOVZ",
"MOVZW",
"MRS",
"MSR",
"MSUB",
"MSUBW",
"MUL",
"MULW",
"MVN",
"MVNW",
"NEG",
"NEGS",
"NEGSW",
"NEGW",
"NGC",
"NGCS",
"NGCSW",
"NGCW",
"ORN",
"ORNW",
"ORR",
"ORRW",
"PRFM",
"PRFUM",
"RBIT",
"RBITW",
"REM",
"REMW",
"REV",
"REV16",
"REV16W",
"REV32",
"REVW",
"ROR",
"RORW",
"SBC",
"SBCS",
"SBCSW",
"SBCW",
"SBFIZ",
"SBFIZW",
"SBFM",
"SBFMW",
"SBFX",
"SBFXW",
"SDIV",
"SDIVW",
"SEV",
"SEVL",
"SMADDL",
"SMC",
"SMNEGL",
"SMSUBL",
"SMULH",
"SMULL",
"STXR",
"STXRB",
"STXRH",
"STXP",
"STXPW",
"STXRW",
"STLP",
"STLPW",
"STLR",
"STLRB",
"STLRH",
"STLRW",
"STLXP",
"STLXPW",
"STLXR",
"STLXRB",
"STLXRH",
"STLXRW",
"STP",
"SUB",
"SUBS",
"SUBSW",
"SUBW",
"SVC",
"SXTB",
"SXTBW",
"SXTH",
"SXTHW",
"SXTW",
"SYS",
"SYSL",
"TBNZ",
"TBZ",
"TLBI",
"TST",
"TSTW",
"UBFIZ",
"UBFIZW",
"UBFM",
"UBFMW",
"UBFX",
"UBFXW",
"UDIV",
"UDIVW",
"UMADDL",
"UMNEGL",
"UMSUBL",
"UMULH",
"UMULL",
"UREM",
"UREMW",
"UXTB",
"UXTH",
"UXTW",
"UXTBW",
"UXTHW",
"WFE",
"WFI",
"YIELD",
"MOVB",
"MOVBU",
"MOVH",
"MOVHU",
"MOVW",
"MOVWU",
"MOVD",
"MOVNP",
"MOVNPW",
"MOVP",
"MOVPD",
"MOVPQ",
"MOVPS",
"MOVPSW",
"MOVPW",
"BEQ",
"BNE",
"BCS",
"BHS",
"BCC",
"BLO",
"BMI",
"BPL",
"BVS",
"BVC",
"BHI",
"BLS",
"BGE",
"BLT",
"BGT",
"BLE",
"FABSD",
"FABSS",
"FADDD",
"FADDS",
"FCCMPD",
"FCCMPED",
"FCCMPS",
"FCCMPES",
"FCMPD",
"FCMPED",
"FCMPES",
"FCMPS",
"FCVTSD",
"FCVTDS",
"FCVTZSD",
"FCVTZSDW",
"FCVTZSS",
"FCVTZSSW",
"FCVTZUD",
"FCVTZUDW",
"FCVTZUS",
"FCVTZUSW",
"FDIVD",
"FDIVS",
"FMOVD",
"FMOVS",
"FMULD",
"FMULS",
"FNEGD",
"FNEGS",
"FSQRTD",
"FSQRTS",
"FSUBD",
"FSUBS",
"SCVTFD",
"SCVTFS",
"SCVTFWD",
"SCVTFWS",
"UCVTFD",
"UCVTFS",
"UCVTFWD",
"UCVTFWS",
"WORD",
"DWORD",
"FCSELS",
"FCSELD",
"FMAXS",
"FMINS",
"FMAXD",
"FMIND",
"FMAXNMS",
"FMAXNMD",
"FNMULS",
"FNMULD",
"FRINTNS",
"FRINTND",
"FRINTPS",
"FRINTPD",
"FRINTMS",
"FRINTMD",
"FRINTZS",
"FRINTZD",
"FRINTAS",
"FRINTAD",
"FRINTXS",
"FRINTXD",
"FRINTIS",
"FRINTID",
"FMADDS",
"FMADDD",
"FMSUBS",
"FMSUBD",
"FNMADDS",
"FNMADDD",
"FNMSUBS",
"FNMSUBD",
"FMINNMS",
"FMINNMD",
"FCVTDH",
"FCVTHS",
"FCVTHD",
"FCVTSH",
"AESD",
"AESE",
"AESIMC",
"AESMC",
"SHA1C",
"SHA1H",
"SHA1M",
"SHA1P",
"SHA1SU0",
"SHA1SU1",
"SHA256H",
"SHA256H2",
"SHA256SU0",
"SHA256SU1",
"LAST",
}

70
vendor/github.com/google/gops/internal/obj/arm64/anames7.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package arm64
var cnames7 = []string{
"NONE",
"REG",
"RSP",
"FREG",
"VREG",
"PAIR",
"SHIFT",
"EXTREG",
"SPR",
"COND",
"ZCON",
"ADDCON0",
"ADDCON",
"MOVCON",
"BITCON",
"ABCON0",
"ABCON",
"MBCON",
"LCON",
"VCON",
"FCON",
"VCONADDR",
"AACON",
"LACON",
"AECON",
"SBRA",
"LBRA",
"NPAUTO",
"NSAUTO",
"PSAUTO",
"PPAUTO",
"UAUTO4K",
"UAUTO8K",
"UAUTO16K",
"UAUTO32K",
"UAUTO64K",
"LAUTO",
"SEXT1",
"SEXT2",
"SEXT4",
"SEXT8",
"SEXT16",
"LEXT",
"ZOREG",
"NPOREG",
"NSOREG",
"PSOREG",
"PPOREG",
"UOREG4K",
"UOREG8K",
"UOREG16K",
"UOREG32K",
"UOREG64K",
"LOREG",
"ADDR",
"GOTADDR",
"TLS_LE",
"TLS_IE",
"ROFF",
"GOK",
"TEXTSIZE",
"NCLASS",
}

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vendor/github.com/google/gops/internal/obj/arm64/list7.go generated vendored Normal file
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// cmd/7l/list.c and cmd/7l/sub.c from Vita Nuova.
// https://code.google.com/p/ken-cc/source/browse/
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package arm64
import (
"fmt"
"github.com/google/gops/internal/obj"
)
var strcond = [16]string{
"EQ",
"NE",
"HS",
"LO",
"MI",
"PL",
"VS",
"VC",
"HI",
"LS",
"GE",
"LT",
"GT",
"LE",
"AL",
"NV",
}
func init() {
obj.RegisterRegister(obj.RBaseARM64, REG_SPECIAL+1024, Rconv)
obj.RegisterOpcode(obj.ABaseARM64, Anames)
}
func Rconv(r int) string {
if r == REGG {
return "g"
}
switch {
case REG_R0 <= r && r <= REG_R30:
return fmt.Sprintf("R%d", r-REG_R0)
case r == REG_R31:
return "ZR"
case REG_F0 <= r && r <= REG_F31:
return fmt.Sprintf("F%d", r-REG_F0)
case REG_V0 <= r && r <= REG_V31:
return fmt.Sprintf("V%d", r-REG_V0)
case COND_EQ <= r && r <= COND_NV:
return strcond[r-COND_EQ]
case r == REGSP:
return "RSP"
case r == REG_DAIF:
return "DAIF"
case r == REG_NZCV:
return "NZCV"
case r == REG_FPSR:
return "FPSR"
case r == REG_FPCR:
return "FPCR"
case r == REG_SPSR_EL1:
return "SPSR_EL1"
case r == REG_ELR_EL1:
return "ELR_EL1"
case r == REG_SPSR_EL2:
return "SPSR_EL2"
case r == REG_ELR_EL2:
return "ELR_EL2"
case r == REG_CurrentEL:
return "CurrentEL"
case r == REG_SP_EL0:
return "SP_EL0"
case r == REG_SPSel:
return "SPSel"
case r == REG_DAIFSet:
return "DAIFSet"
case r == REG_DAIFClr:
return "DAIFClr"
}
return fmt.Sprintf("badreg(%d)", r)
}
func DRconv(a int) string {
if a >= C_NONE && a <= C_NCLASS {
return cnames7[a]
}
return "C_??"
}

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vendor/github.com/google/gops/internal/obj/data.go generated vendored Normal file
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// Derived from Inferno utils/6l/obj.c and utils/6l/span.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/span.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package obj
import (
"log"
"math"
)
// Grow increases the length of s.P to lsiz.
func (s *LSym) Grow(lsiz int64) {
siz := int(lsiz)
if int64(siz) != lsiz {
log.Fatalf("LSym.Grow size %d too long", lsiz)
}
if len(s.P) >= siz {
return
}
// TODO(dfc) append cap-len at once, rather than
// one byte at a time.
for cap(s.P) < siz {
s.P = append(s.P[:cap(s.P)], 0)
}
s.P = s.P[:siz]
}
// GrowCap increases the capacity of s.P to c.
func (s *LSym) GrowCap(c int64) {
if int64(cap(s.P)) >= c {
return
}
if s.P == nil {
s.P = make([]byte, 0, c)
return
}
b := make([]byte, len(s.P), c)
copy(b, s.P)
s.P = b
}
// prepwrite prepares to write data of size siz into s at offset off.
func (s *LSym) prepwrite(ctxt *Link, off int64, siz int) {
if off < 0 || siz < 0 || off >= 1<<30 {
log.Fatalf("prepwrite: bad off=%d siz=%d", off, siz)
}
if s.Type == SBSS || s.Type == STLSBSS {
ctxt.Diag("cannot supply data for BSS var")
}
l := off + int64(siz)
s.Grow(l)
if l > s.Size {
s.Size = l
}
}
// WriteFloat32 writes f into s at offset off.
func (s *LSym) WriteFloat32(ctxt *Link, off int64, f float32) {
s.prepwrite(ctxt, off, 4)
ctxt.Arch.ByteOrder.PutUint32(s.P[off:], math.Float32bits(f))
}
// WriteFloat64 writes f into s at offset off.
func (s *LSym) WriteFloat64(ctxt *Link, off int64, f float64) {
s.prepwrite(ctxt, off, 8)
ctxt.Arch.ByteOrder.PutUint64(s.P[off:], math.Float64bits(f))
}
// WriteInt writes an integer i of size siz into s at offset off.
func (s *LSym) WriteInt(ctxt *Link, off int64, siz int, i int64) {
s.prepwrite(ctxt, off, siz)
switch siz {
default:
ctxt.Diag("WriteInt: bad integer size: %d", siz)
case 1:
s.P[off] = byte(i)
case 2:
ctxt.Arch.ByteOrder.PutUint16(s.P[off:], uint16(i))
case 4:
ctxt.Arch.ByteOrder.PutUint32(s.P[off:], uint32(i))
case 8:
ctxt.Arch.ByteOrder.PutUint64(s.P[off:], uint64(i))
}
}
// WriteAddr writes an address of size siz into s at offset off.
// rsym and roff specify the relocation for the address.
func (s *LSym) WriteAddr(ctxt *Link, off int64, siz int, rsym *LSym, roff int64) {
if siz != ctxt.Arch.PtrSize {
ctxt.Diag("WriteAddr: bad address size %d in %s", siz, s.Name)
}
s.prepwrite(ctxt, off, siz)
r := Addrel(s)
r.Off = int32(off)
if int64(r.Off) != off {
ctxt.Diag("WriteAddr: off overflow %d in %s", off, s.Name)
}
r.Siz = uint8(siz)
r.Sym = rsym
r.Type = R_ADDR
r.Add = roff
}
// WriteOff writes a 4 byte offset to rsym+roff into s at offset off.
// After linking the 4 bytes stored at s+off will be
// rsym+roff-(start of section that s is in).
func (s *LSym) WriteOff(ctxt *Link, off int64, rsym *LSym, roff int64) {
s.prepwrite(ctxt, off, 4)
r := Addrel(s)
r.Off = int32(off)
if int64(r.Off) != off {
ctxt.Diag("WriteOff: off overflow %d in %s", off, s.Name)
}
r.Siz = 4
r.Sym = rsym
r.Type = R_ADDROFF
r.Add = roff
}
// WriteString writes a string of size siz into s at offset off.
func (s *LSym) WriteString(ctxt *Link, off int64, siz int, str string) {
if siz < len(str) {
ctxt.Diag("WriteString: bad string size: %d < %d", siz, len(str))
}
s.prepwrite(ctxt, off, siz)
copy(s.P[off:off+int64(siz)], str)
}
// WriteBytes writes a slice of bytes into s at offset off.
func (s *LSym) WriteBytes(ctxt *Link, off int64, b []byte) int64 {
s.prepwrite(ctxt, off, len(b))
copy(s.P[off:], b)
return off + int64(len(b))
}
func Addrel(s *LSym) *Reloc {
s.R = append(s.R, Reloc{})
return &s.R[len(s.R)-1]
}
func Setuintxx(ctxt *Link, s *LSym, off int64, v uint64, wid int64) int64 {
if s.Type == 0 {
s.Type = SDATA
}
if s.Size < off+wid {
s.Size = off + wid
s.Grow(s.Size)
}
switch wid {
case 1:
s.P[off] = uint8(v)
case 2:
ctxt.Arch.ByteOrder.PutUint16(s.P[off:], uint16(v))
case 4:
ctxt.Arch.ByteOrder.PutUint32(s.P[off:], uint32(v))
case 8:
ctxt.Arch.ByteOrder.PutUint64(s.P[off:], v)
}
return off + wid
}

115
vendor/github.com/google/gops/internal/obj/flag.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package obj
import (
"flag"
"fmt"
"os"
"strconv"
)
func Flagfn2(string, string, func(string, string)) { panic("flag") }
func Flagcount(name, usage string, val *int) {
flag.Var((*count)(val), name, usage)
}
func Flagint32(name, usage string, val *int32) {
flag.Var((*int32Value)(val), name, usage)
}
func Flagint64(name, usage string, val *int64) {
flag.Int64Var(val, name, *val, usage)
}
func Flagstr(name, usage string, val *string) {
flag.StringVar(val, name, *val, usage)
}
func Flagfn0(name, usage string, f func()) {
flag.Var(fn0(f), name, usage)
}
func Flagfn1(name, usage string, f func(string)) {
flag.Var(fn1(f), name, usage)
}
func Flagprint(fd int) {
if fd == 1 {
flag.CommandLine.SetOutput(os.Stdout)
}
flag.PrintDefaults()
}
func Flagparse(usage func()) {
flag.Usage = usage
flag.Parse()
}
// count is a flag.Value that is like a flag.Bool and a flag.Int.
// If used as -name, it increments the count, but -name=x sets the count.
// Used for verbose flag -v.
type count int
func (c *count) String() string {
return fmt.Sprint(int(*c))
}
func (c *count) Set(s string) error {
switch s {
case "true":
*c++
case "false":
*c = 0
default:
n, err := strconv.Atoi(s)
if err != nil {
return fmt.Errorf("invalid count %q", s)
}
*c = count(n)
}
return nil
}
func (c *count) IsBoolFlag() bool {
return true
}
type int32Value int32
func (i *int32Value) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 64)
*i = int32Value(v)
return err
}
func (i *int32Value) Get() interface{} { return int32(*i) }
func (i *int32Value) String() string { return fmt.Sprint(*i) }
type fn0 func()
func (f fn0) Set(s string) error {
f()
return nil
}
func (f fn0) Get() interface{} { return nil }
func (f fn0) String() string { return "" }
func (f fn0) IsBoolFlag() bool {
return true
}
type fn1 func(string)
func (f fn1) Set(s string) error {
f(s)
return nil
}
func (f fn1) String() string { return "" }

48
vendor/github.com/google/gops/internal/obj/funcdata.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package obj
// This file defines the IDs for PCDATA and FUNCDATA instructions
// in Go binaries. It is included by assembly sources, so it must
// be written using #defines.
//
// The Go compiler also #includes this file, for now.
//
// symtab.go also contains a copy of these constants.
// Pseudo-assembly statements.
// GO_ARGS, GO_RESULTS_INITIALIZED, and NO_LOCAL_POINTERS are macros
// that communicate to the runtime information about the location and liveness
// of pointers in an assembly function's arguments, results, and stack frame.
// This communication is only required in assembly functions that make calls
// to other functions that might be preempted or grow the stack.
// NOSPLIT functions that make no calls do not need to use these macros.
// GO_ARGS indicates that the Go prototype for this assembly function
// defines the pointer map for the function's arguments.
// GO_ARGS should be the first instruction in a function that uses it.
// It can be omitted if there are no arguments at all.
// GO_ARGS is inserted implicitly by the linker for any function
// that also has a Go prototype and therefore is usually not necessary
// to write explicitly.
// GO_RESULTS_INITIALIZED indicates that the assembly function
// has initialized the stack space for its results and that those results
// should be considered live for the remainder of the function.
// NO_LOCAL_POINTERS indicates that the assembly function stores
// no pointers to heap objects in its local stack variables.
// ArgsSizeUnknown is set in Func.argsize to mark all functions
// whose argument size is unknown (C vararg functions, and
// assembly code without an explicit specification).
// This value is generated by the compiler, assembler, or linker.
const (
PCDATA_StackMapIndex = 0
FUNCDATA_ArgsPointerMaps = 0
FUNCDATA_LocalsPointerMaps = 1
ArgsSizeUnknown = -0x80000000
)

86
vendor/github.com/google/gops/internal/obj/go.go generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package obj
import (
"fmt"
"os"
"strings"
)
// go-specific code shared across loaders (5l, 6l, 8l).
var (
framepointer_enabled int
Fieldtrack_enabled int
)
// Toolchain experiments.
// These are controlled by the GOEXPERIMENT environment
// variable recorded when the toolchain is built.
// This list is also known to cmd/gc.
var exper = []struct {
name string
val *int
}{
{"fieldtrack", &Fieldtrack_enabled},
{"framepointer", &framepointer_enabled},
}
func addexp(s string) {
// Could do general integer parsing here, but the runtime copy doesn't yet.
v := 1
name := s
if len(name) > 2 && name[:2] == "no" {
v = 0
name = name[2:]
}
for i := 0; i < len(exper); i++ {
if exper[i].name == name {
if exper[i].val != nil {
*exper[i].val = v
}
return
}
}
fmt.Printf("unknown experiment %s\n", s)
os.Exit(2)
}
func init() {
framepointer_enabled = 1 // default
for _, f := range strings.Split(goexperiment, ",") {
if f != "" {
addexp(f)
}
}
}
func Framepointer_enabled(goos, goarch string) bool {
return framepointer_enabled != 0 && goarch == "amd64" && goos != "nacl"
}
func Nopout(p *Prog) {
p.As = ANOP
p.Scond = 0
p.From = Addr{}
p.From3 = nil
p.Reg = 0
p.To = Addr{}
}
func Expstring() string {
buf := "X"
for i := range exper {
if *exper[i].val != 0 {
buf += "," + exper[i].name
}
}
if buf == "X" {
buf += ",none"
}
return "X:" + buf[2:]
}

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vendor/github.com/google/gops/internal/obj/ld.go generated vendored Normal file
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// Derived from Inferno utils/6l/obj.c and utils/6l/span.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/obj.c
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/span.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package obj
/*
* add library to library list.
* srcref: src file referring to package
* objref: object file referring to package
* file: object file, e.g., /home/rsc/go/pkg/container/vector.a
* pkg: package import path, e.g. container/vector
*/
const (
LOG = 5
)
func mkfwd(sym *LSym) {
var dwn [LOG]int32
var cnt [LOG]int32
var lst [LOG]*Prog
for i := 0; i < LOG; i++ {
if i == 0 {
cnt[i] = 1
} else {
cnt[i] = LOG * cnt[i-1]
}
dwn[i] = 1
lst[i] = nil
}
i := 0
for p := sym.Text; p != nil && p.Link != nil; p = p.Link {
i--
if i < 0 {
i = LOG - 1
}
p.Forwd = nil
dwn[i]--
if dwn[i] <= 0 {
dwn[i] = cnt[i]
if lst[i] != nil {
lst[i].Forwd = p
}
lst[i] = p
}
}
}
func Copyp(ctxt *Link, q *Prog) *Prog {
p := ctxt.NewProg()
*p = *q
return p
}
func Appendp(ctxt *Link, q *Prog) *Prog {
p := ctxt.NewProg()
p.Link = q.Link
q.Link = p
p.Lineno = q.Lineno
p.Mode = q.Mode
return p
}

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vendor/github.com/google/gops/internal/obj/line_test.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package obj
import (
"fmt"
"testing"
)
func TestLineHist(t *testing.T) {
ctxt := new(Link)
ctxt.Hash = make(map[SymVer]*LSym)
ctxt.LineHist.Push(1, "a.c")
ctxt.LineHist.Push(3, "a.h")
ctxt.LineHist.Pop(5)
ctxt.LineHist.Update(7, "linedir", 2)
ctxt.LineHist.Pop(9)
ctxt.LineHist.Push(11, "b.c")
ctxt.LineHist.Pop(13)
var expect = []string{
0: "??:0",
1: "a.c:1",
2: "a.c:2",
3: "a.h:1",
4: "a.h:2",
5: "a.c:3",
6: "a.c:4",
7: "linedir:2",
8: "linedir:3",
9: "??:0",
10: "??:0",
11: "b.c:1",
12: "b.c:2",
13: "??:0",
14: "??:0",
}
for i, want := range expect {
f, l := linkgetline(ctxt, int32(i))
have := fmt.Sprintf("%s:%d", f.Name, l)
if have != want {
t.Errorf("linkgetline(%d) = %q, want %q", i, have, want)
}
}
}

974
vendor/github.com/google/gops/internal/obj/link.go generated vendored Normal file
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// Derived from Inferno utils/6l/l.h and related files.
// https://bitbucket.org/inferno-os/inferno-os/src/default/utils/6l/l.h
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package obj
import (
"bufio"
"fmt"
"github.com/google/gops/internal/sys"
)
// An Addr is an argument to an instruction.
// The general forms and their encodings are:
//
// sym±offset(symkind)(reg)(index*scale)
// Memory reference at address &sym(symkind) + offset + reg + index*scale.
// Any of sym(symkind), ±offset, (reg), (index*scale), and *scale can be omitted.
// If (reg) and *scale are both omitted, the resulting expression (index) is parsed as (reg).
// To force a parsing as index*scale, write (index*1).
// Encoding:
// type = TYPE_MEM
// name = symkind (NAME_AUTO, ...) or 0 (NAME_NONE)
// sym = sym
// offset = ±offset
// reg = reg (REG_*)
// index = index (REG_*)
// scale = scale (1, 2, 4, 8)
//
// $<mem>
// Effective address of memory reference <mem>, defined above.
// Encoding: same as memory reference, but type = TYPE_ADDR.
//
// $<±integer value>
// This is a special case of $<mem>, in which only ±offset is present.
// It has a separate type for easy recognition.
// Encoding:
// type = TYPE_CONST
// offset = ±integer value
//
// *<mem>
// Indirect reference through memory reference <mem>, defined above.
// Only used on x86 for CALL/JMP *sym(SB), which calls/jumps to a function
// pointer stored in the data word sym(SB), not a function named sym(SB).
// Encoding: same as above, but type = TYPE_INDIR.
//
// $*$<mem>
// No longer used.
// On machines with actual SB registers, $*$<mem> forced the
// instruction encoding to use a full 32-bit constant, never a
// reference relative to SB.
//
// $<floating point literal>
// Floating point constant value.
// Encoding:
// type = TYPE_FCONST
// val = floating point value
//
// $<string literal, up to 8 chars>
// String literal value (raw bytes used for DATA instruction).
// Encoding:
// type = TYPE_SCONST
// val = string
//
// <register name>
// Any register: integer, floating point, control, segment, and so on.
// If looking for specific register kind, must check type and reg value range.
// Encoding:
// type = TYPE_REG
// reg = reg (REG_*)
//
// x(PC)
// Encoding:
// type = TYPE_BRANCH
// val = Prog* reference OR ELSE offset = target pc (branch takes priority)
//
// $±x-±y
// Final argument to TEXT, specifying local frame size x and argument size y.
// In this form, x and y are integer literals only, not arbitrary expressions.
// This avoids parsing ambiguities due to the use of - as a separator.
// The ± are optional.
// If the final argument to TEXT omits the -±y, the encoding should still
// use TYPE_TEXTSIZE (not TYPE_CONST), with u.argsize = ArgsSizeUnknown.
// Encoding:
// type = TYPE_TEXTSIZE
// offset = x
// val = int32(y)
//
// reg<<shift, reg>>shift, reg->shift, reg@>shift
// Shifted register value, for ARM and ARM64.
// In this form, reg must be a register and shift can be a register or an integer constant.
// Encoding:
// type = TYPE_SHIFT
// On ARM:
// offset = (reg&15) | shifttype<<5 | count
// shifttype = 0, 1, 2, 3 for <<, >>, ->, @>
// count = (reg&15)<<8 | 1<<4 for a register shift count, (n&31)<<7 for an integer constant.
// On ARM64:
// offset = (reg&31)<<16 | shifttype<<22 | (count&63)<<10
// shifttype = 0, 1, 2 for <<, >>, ->
//
// (reg, reg)
// A destination register pair. When used as the last argument of an instruction,
// this form makes clear that both registers are destinations.
// Encoding:
// type = TYPE_REGREG
// reg = first register
// offset = second register
//
// [reg, reg, reg-reg]
// Register list for ARM.
// Encoding:
// type = TYPE_REGLIST
// offset = bit mask of registers in list; R0 is low bit.
//
// reg, reg
// Register pair for ARM.
// TYPE_REGREG2
//
// (reg+reg)
// Register pair for PPC64.
// Encoding:
// type = TYPE_MEM
// reg = first register
// index = second register
// scale = 1
//
type Addr struct {
Reg int16
Index int16
Scale int16 // Sometimes holds a register.
Type AddrType
Name int8
Class int8
Offset int64
Sym *LSym
// argument value:
// for TYPE_SCONST, a string
// for TYPE_FCONST, a float64
// for TYPE_BRANCH, a *Prog (optional)
// for TYPE_TEXTSIZE, an int32 (optional)
Val interface{}
Node interface{} // for use by compiler
}
type AddrType uint8
const (
NAME_NONE = 0 + iota
NAME_EXTERN
NAME_STATIC
NAME_AUTO
NAME_PARAM
// A reference to name@GOT(SB) is a reference to the entry in the global offset
// table for 'name'.
NAME_GOTREF
)
const (
TYPE_NONE AddrType = 0
TYPE_BRANCH AddrType = 5 + iota
TYPE_TEXTSIZE
TYPE_MEM
TYPE_CONST
TYPE_FCONST
TYPE_SCONST
TYPE_REG
TYPE_ADDR
TYPE_SHIFT
TYPE_REGREG
TYPE_REGREG2
TYPE_INDIR
TYPE_REGLIST
)
// Prog describes a single machine instruction.
//
// The general instruction form is:
//
// As.Scond From, Reg, From3, To, RegTo2
//
// where As is an opcode and the others are arguments:
// From, Reg, From3 are sources, and To, RegTo2 are destinations.
// Usually, not all arguments are present.
// For example, MOVL R1, R2 encodes using only As=MOVL, From=R1, To=R2.
// The Scond field holds additional condition bits for systems (like arm)
// that have generalized conditional execution.
//
// Jump instructions use the Pcond field to point to the target instruction,
// which must be in the same linked list as the jump instruction.
//
// The Progs for a given function are arranged in a list linked through the Link field.
//
// Each Prog is charged to a specific source line in the debug information,
// specified by Lineno, an index into the line history (see LineHist).
// Every Prog has a Ctxt field that defines various context, including the current LineHist.
// Progs should be allocated using ctxt.NewProg(), not new(Prog).
//
// The other fields not yet mentioned are for use by the back ends and should
// be left zeroed by creators of Prog lists.
type Prog struct {
Ctxt *Link // linker context
Link *Prog // next Prog in linked list
From Addr // first source operand
From3 *Addr // third source operand (second is Reg below)
To Addr // destination operand (second is RegTo2 below)
Pcond *Prog // target of conditional jump
Opt interface{} // available to optimization passes to hold per-Prog state
Forwd *Prog // for x86 back end
Rel *Prog // for x86, arm back ends
Pc int64 // for back ends or assembler: virtual or actual program counter, depending on phase
Lineno int32 // line number of this instruction
Spadj int32 // effect of instruction on stack pointer (increment or decrement amount)
As As // assembler opcode
Reg int16 // 2nd source operand
RegTo2 int16 // 2nd destination operand
Mark uint16 // bitmask of arch-specific items
Optab uint16 // arch-specific opcode index
Scond uint8 // condition bits for conditional instruction (e.g., on ARM)
Back uint8 // for x86 back end: backwards branch state
Ft uint8 // for x86 back end: type index of Prog.From
Tt uint8 // for x86 back end: type index of Prog.To
Isize uint8 // for x86 back end: size of the instruction in bytes
Mode int8 // for x86 back end: 32- or 64-bit mode
}
// From3Type returns From3.Type, or TYPE_NONE when From3 is nil.
func (p *Prog) From3Type() AddrType {
if p.From3 == nil {
return TYPE_NONE
}
return p.From3.Type
}
// From3Offset returns From3.Offset, or 0 when From3 is nil.
func (p *Prog) From3Offset() int64 {
if p.From3 == nil {
return 0
}
return p.From3.Offset
}
// An As denotes an assembler opcode.
// There are some portable opcodes, declared here in package obj,
// that are common to all architectures.
// However, the majority of opcodes are arch-specific
// and are declared in their respective architecture's subpackage.
type As int16
// These are the portable opcodes.
const (
AXXX As = iota
ACALL
ADUFFCOPY
ADUFFZERO
AEND
AFUNCDATA
AJMP
ANOP
APCDATA
ARET
ATEXT
ATYPE
AUNDEF
AUSEFIELD
AVARDEF
AVARKILL
AVARLIVE
A_ARCHSPECIFIC
)
// Each architecture is allotted a distinct subspace of opcode values
// for declaring its arch-specific opcodes.
// Within this subspace, the first arch-specific opcode should be
// at offset A_ARCHSPECIFIC.
//
// Subspaces are aligned to a power of two so opcodes can be masked
// with AMask and used as compact array indices.
const (
ABase386 = (1 + iota) << 10
ABaseARM
ABaseAMD64
ABasePPC64
ABaseARM64
ABaseMIPS64
ABaseS390X
AllowedOpCodes = 1 << 10 // The number of opcodes available for any given architecture.
AMask = AllowedOpCodes - 1 // AND with this to use the opcode as an array index.
)
// An LSym is the sort of symbol that is written to an object file.
type LSym struct {
Name string
Type SymKind
Version int16
Attribute
RefIdx int // Index of this symbol in the symbol reference list.
Args int32
Locals int32
Size int64
Gotype *LSym
Autom *Auto
Text *Prog
Pcln *Pcln
P []byte
R []Reloc
}
// Attribute is a set of symbol attributes.
type Attribute int16
const (
AttrDuplicateOK Attribute = 1 << iota
AttrCFunc
AttrNoSplit
AttrLeaf
AttrSeenGlobl
AttrOnList
// MakeTypelink means that the type should have an entry in the typelink table.
AttrMakeTypelink
// ReflectMethod means the function may call reflect.Type.Method or
// reflect.Type.MethodByName. Matching is imprecise (as reflect.Type
// can be used through a custom interface), so ReflectMethod may be
// set in some cases when the reflect package is not called.
//
// Used by the linker to determine what methods can be pruned.
AttrReflectMethod
// Local means make the symbol local even when compiling Go code to reference Go
// symbols in other shared libraries, as in this mode symbols are global by
// default. "local" here means in the sense of the dynamic linker, i.e. not
// visible outside of the module (shared library or executable) that contains its
// definition. (When not compiling to support Go shared libraries, all symbols are
// local in this sense unless there is a cgo_export_* directive).
AttrLocal
)
func (a Attribute) DuplicateOK() bool { return a&AttrDuplicateOK != 0 }
func (a Attribute) MakeTypelink() bool { return a&AttrMakeTypelink != 0 }
func (a Attribute) CFunc() bool { return a&AttrCFunc != 0 }
func (a Attribute) NoSplit() bool { return a&AttrNoSplit != 0 }
func (a Attribute) Leaf() bool { return a&AttrLeaf != 0 }
func (a Attribute) SeenGlobl() bool { return a&AttrSeenGlobl != 0 }
func (a Attribute) OnList() bool { return a&AttrOnList != 0 }
func (a Attribute) ReflectMethod() bool { return a&AttrReflectMethod != 0 }
func (a Attribute) Local() bool { return a&AttrLocal != 0 }
func (a *Attribute) Set(flag Attribute, value bool) {
if value {
*a |= flag
} else {
*a &^= flag
}
}
// The compiler needs LSym to satisfy fmt.Stringer, because it stores
// an LSym in ssa.ExternSymbol.
func (s *LSym) String() string {
return s.Name
}
type Pcln struct {
Pcsp Pcdata
Pcfile Pcdata
Pcline Pcdata
Pcdata []Pcdata
Funcdata []*LSym
Funcdataoff []int64
File []*LSym
Lastfile *LSym
Lastindex int
}
// A SymKind describes the kind of memory represented by a symbol.
type SymKind int16
// Defined SymKind values.
//
// TODO(rsc): Give idiomatic Go names.
// TODO(rsc): Reduce the number of symbol types in the object files.
//go:generate stringer -type=SymKind
const (
Sxxx SymKind = iota
STEXT
SELFRXSECT
// Read-only sections.
STYPE
SSTRING
SGOSTRING
SGOFUNC
SGCBITS
SRODATA
SFUNCTAB
SELFROSECT
SMACHOPLT
// Read-only sections with relocations.
//
// Types STYPE-SFUNCTAB above are written to the .rodata section by default.
// When linking a shared object, some conceptually "read only" types need to
// be written to by relocations and putting them in a section called
// ".rodata" interacts poorly with the system linkers. The GNU linkers
// support this situation by arranging for sections of the name
// ".data.rel.ro.XXX" to be mprotected read only by the dynamic linker after
// relocations have applied, so when the Go linker is creating a shared
// object it checks all objects of the above types and bumps any object that
// has a relocation to it to the corresponding type below, which are then
// written to sections with appropriate magic names.
STYPERELRO
SSTRINGRELRO
SGOSTRINGRELRO
SGOFUNCRELRO
SGCBITSRELRO
SRODATARELRO
SFUNCTABRELRO
// Part of .data.rel.ro if it exists, otherwise part of .rodata.
STYPELINK
SITABLINK
SSYMTAB
SPCLNTAB
// Writable sections.
SELFSECT
SMACHO
SMACHOGOT
SWINDOWS
SELFGOT
SNOPTRDATA
SINITARR
SDATA
SBSS
SNOPTRBSS
STLSBSS
SXREF
SMACHOSYMSTR
SMACHOSYMTAB
SMACHOINDIRECTPLT
SMACHOINDIRECTGOT
SFILE
SFILEPATH
SCONST
SDYNIMPORT
SHOSTOBJ
SDWARFSECT
SDWARFINFO
SSUB = SymKind(1 << 8)
SMASK = SymKind(SSUB - 1)
SHIDDEN = SymKind(1 << 9)
SCONTAINER = SymKind(1 << 10) // has a sub-symbol
)
// ReadOnly are the symbol kinds that form read-only sections. In some
// cases, if they will require relocations, they are transformed into
// rel-ro sections using RelROMap.
var ReadOnly = []SymKind{
STYPE,
SSTRING,
SGOSTRING,
SGOFUNC,
SGCBITS,
SRODATA,
SFUNCTAB,
}
// RelROMap describes the transformation of read-only symbols to rel-ro
// symbols.
var RelROMap = map[SymKind]SymKind{
STYPE: STYPERELRO,
SSTRING: SSTRINGRELRO,
SGOSTRING: SGOSTRINGRELRO,
SGOFUNC: SGOFUNCRELRO,
SGCBITS: SGCBITSRELRO,
SRODATA: SRODATARELRO,
SFUNCTAB: SFUNCTABRELRO,
}
type Reloc struct {
Off int32
Siz uint8
Type RelocType
Add int64
Sym *LSym
}
type RelocType int32
//go:generate stringer -type=RelocType
const (
R_ADDR RelocType = 1 + iota
// R_ADDRPOWER relocates a pair of "D-form" instructions (instructions with 16-bit
// immediates in the low half of the instruction word), usually addis followed by
// another add or a load, inserting the "high adjusted" 16 bits of the address of
// the referenced symbol into the immediate field of the first instruction and the
// low 16 bits into that of the second instruction.
R_ADDRPOWER
// R_ADDRARM64 relocates an adrp, add pair to compute the address of the
// referenced symbol.
R_ADDRARM64
// R_ADDRMIPS (only used on mips64) resolves to the low 16 bits of an external
// address, by encoding it into the instruction.
R_ADDRMIPS
// R_ADDROFF resolves to a 32-bit offset from the beginning of the section
// holding the data being relocated to the referenced symbol.
R_ADDROFF
R_SIZE
R_CALL
R_CALLARM
R_CALLARM64
R_CALLIND
R_CALLPOWER
// R_CALLMIPS (only used on mips64) resolves to non-PC-relative target address
// of a CALL (JAL) instruction, by encoding the address into the instruction.
R_CALLMIPS
R_CONST
R_PCREL
// R_TLS_LE, used on 386, amd64, and ARM, resolves to the offset of the
// thread-local symbol from the thread local base and is used to implement the
// "local exec" model for tls access (r.Sym is not set on intel platforms but is
// set to a TLS symbol -- runtime.tlsg -- in the linker when externally linking).
R_TLS_LE
// R_TLS_IE, used 386, amd64, and ARM resolves to the PC-relative offset to a GOT
// slot containing the offset from the thread-local symbol from the thread local
// base and is used to implemented the "initial exec" model for tls access (r.Sym
// is not set on intel platforms but is set to a TLS symbol -- runtime.tlsg -- in
// the linker when externally linking).
R_TLS_IE
R_GOTOFF
R_PLT0
R_PLT1
R_PLT2
R_USEFIELD
// R_USETYPE resolves to an *rtype, but no relocation is created. The
// linker uses this as a signal that the pointed-to type information
// should be linked into the final binary, even if there are no other
// direct references. (This is used for types reachable by reflection.)
R_USETYPE
// R_METHODOFF resolves to a 32-bit offset from the beginning of the section
// holding the data being relocated to the referenced symbol.
// It is a variant of R_ADDROFF used when linking from the uncommonType of a
// *rtype, and may be set to zero by the linker if it determines the method
// text is unreachable by the linked program.
R_METHODOFF
R_POWER_TOC
R_GOTPCREL
// R_JMPMIPS (only used on mips64) resolves to non-PC-relative target address
// of a JMP instruction, by encoding the address into the instruction.
// The stack nosplit check ignores this since it is not a function call.
R_JMPMIPS
// R_DWARFREF resolves to the offset of the symbol from its section.
R_DWARFREF
// Platform dependent relocations. Architectures with fixed width instructions
// have the inherent issue that a 32-bit (or 64-bit!) displacement cannot be
// stuffed into a 32-bit instruction, so an address needs to be spread across
// several instructions, and in turn this requires a sequence of relocations, each
// updating a part of an instruction. This leads to relocation codes that are
// inherently processor specific.
// Arm64.
// Set a MOV[NZ] immediate field to bits [15:0] of the offset from the thread
// local base to the thread local variable defined by the referenced (thread
// local) symbol. Error if the offset does not fit into 16 bits.
R_ARM64_TLS_LE
// Relocates an ADRP; LD64 instruction sequence to load the offset between
// the thread local base and the thread local variable defined by the
// referenced (thread local) symbol from the GOT.
R_ARM64_TLS_IE
// R_ARM64_GOTPCREL relocates an adrp, ld64 pair to compute the address of the GOT
// slot of the referenced symbol.
R_ARM64_GOTPCREL
// PPC64.
// R_POWER_TLS_LE is used to implement the "local exec" model for tls
// access. It resolves to the offset of the thread-local symbol from the
// thread pointer (R13) and inserts this value into the low 16 bits of an
// instruction word.
R_POWER_TLS_LE
// R_POWER_TLS_IE is used to implement the "initial exec" model for tls access. It
// relocates a D-form, DS-form instruction sequence like R_ADDRPOWER_DS. It
// inserts to the offset of GOT slot for the thread-local symbol from the TOC (the
// GOT slot is filled by the dynamic linker with the offset of the thread-local
// symbol from the thread pointer (R13)).
R_POWER_TLS_IE
// R_POWER_TLS marks an X-form instruction such as "MOVD 0(R13)(R31*1), g" as
// accessing a particular thread-local symbol. It does not affect code generation
// but is used by the system linker when relaxing "initial exec" model code to
// "local exec" model code.
R_POWER_TLS
// R_ADDRPOWER_DS is similar to R_ADDRPOWER above, but assumes the second
// instruction is a "DS-form" instruction, which has an immediate field occupying
// bits [15:2] of the instruction word. Bits [15:2] of the address of the
// relocated symbol are inserted into this field; it is an error if the last two
// bits of the address are not 0.
R_ADDRPOWER_DS
// R_ADDRPOWER_PCREL relocates a D-form, DS-form instruction sequence like
// R_ADDRPOWER_DS but inserts the offset of the GOT slot for the referenced symbol
// from the TOC rather than the symbol's address.
R_ADDRPOWER_GOT
// R_ADDRPOWER_PCREL relocates two D-form instructions like R_ADDRPOWER, but
// inserts the displacement from the place being relocated to the address of the
// the relocated symbol instead of just its address.
R_ADDRPOWER_PCREL
// R_ADDRPOWER_TOCREL relocates two D-form instructions like R_ADDRPOWER, but
// inserts the offset from the TOC to the address of the the relocated symbol
// rather than the symbol's address.
R_ADDRPOWER_TOCREL
// R_ADDRPOWER_TOCREL relocates a D-form, DS-form instruction sequence like
// R_ADDRPOWER_DS but inserts the offset from the TOC to the address of the the
// relocated symbol rather than the symbol's address.
R_ADDRPOWER_TOCREL_DS
// R_PCRELDBL relocates s390x 2-byte aligned PC-relative addresses.
// TODO(mundaym): remove once variants can be serialized - see issue 14218.
R_PCRELDBL
// R_ADDRMIPSU (only used on mips64) resolves to the sign-adjusted "upper" 16
// bits (bit 16-31) of an external address, by encoding it into the instruction.
R_ADDRMIPSU
// R_ADDRMIPSTLS (only used on mips64) resolves to the low 16 bits of a TLS
// address (offset from thread pointer), by encoding it into the instruction.
R_ADDRMIPSTLS
)
// IsDirectJump returns whether r is a relocation for a direct jump.
// A direct jump is a CALL or JMP instruction that takes the target address
// as immediate. The address is embedded into the instruction, possibly
// with limited width.
// An indirect jump is a CALL or JMP instruction that takes the target address
// in register or memory.
func (r RelocType) IsDirectJump() bool {
switch r {
case R_CALL, R_CALLARM, R_CALLARM64, R_CALLPOWER, R_CALLMIPS, R_JMPMIPS:
return true
}
return false
}
type Auto struct {
Asym *LSym
Link *Auto
Aoffset int32
Name int16
Gotype *LSym
}
// Auto.name
const (
A_AUTO = 1 + iota
A_PARAM
)
type Pcdata struct {
P []byte
}
// symbol version, incremented each time a file is loaded.
// version==1 is reserved for savehist.
const (
HistVersion = 1
)
// Link holds the context for writing object code from a compiler
// to be linker input or for reading that input into the linker.
type Link struct {
Headtype HeadType
Arch *LinkArch
Debugasm int32
Debugvlog int32
Debugdivmod int32
Debugpcln int32
Flag_shared bool
Flag_dynlink bool
Flag_optimize bool
Bso *bufio.Writer
Pathname string
Hash map[SymVer]*LSym
LineHist LineHist
Imports []string
Plists []*Plist
Sym_div *LSym
Sym_divu *LSym
Sym_mod *LSym
Sym_modu *LSym
Plan9privates *LSym
Curp *Prog
Printp *Prog
Blitrl *Prog
Elitrl *Prog
Rexflag int
Vexflag int
Rep int
Repn int
Lock int
Asmode int
AsmBuf AsmBuf // instruction buffer for x86
Instoffset int64
Autosize int32
Armsize int32
Pc int64
DiagFunc func(string, ...interface{})
Mode int
Cursym *LSym
Version int
Errors int
Framepointer_enabled bool
// state for writing objects
Text []*LSym
Data []*LSym
// Cache of Progs
allocIdx int
progs [10000]Prog
}
func (ctxt *Link) Diag(format string, args ...interface{}) {
ctxt.Errors++
ctxt.DiagFunc(format, args...)
}
func (ctxt *Link) Logf(format string, args ...interface{}) {
fmt.Fprintf(ctxt.Bso, format, args...)
ctxt.Bso.Flush()
}
// The smallest possible offset from the hardware stack pointer to a local
// variable on the stack. Architectures that use a link register save its value
// on the stack in the function prologue and so always have a pointer between
// the hardware stack pointer and the local variable area.
func (ctxt *Link) FixedFrameSize() int64 {
switch ctxt.Arch.Family {
case sys.AMD64, sys.I386:
return 0
case sys.PPC64:
// PIC code on ppc64le requires 32 bytes of stack, and it's easier to
// just use that much stack always on ppc64x.
return int64(4 * ctxt.Arch.PtrSize)
default:
return int64(ctxt.Arch.PtrSize)
}
}
type SymVer struct {
Name string
Version int // TODO: make int16 to match LSym.Version?
}
// LinkArch is the definition of a single architecture.
type LinkArch struct {
*sys.Arch
Preprocess func(*Link, *LSym)
Assemble func(*Link, *LSym)
Follow func(*Link, *LSym)
Progedit func(*Link, *Prog)
UnaryDst map[As]bool // Instruction takes one operand, a destination.
}
// HeadType is the executable header type.
type HeadType uint8
const (
Hunknown HeadType = iota
Hdarwin
Hdragonfly
Hfreebsd
Hlinux
Hnacl
Hnetbsd
Hopenbsd
Hplan9
Hsolaris
Hwindows
Hwindowsgui
)
func (h *HeadType) Set(s string) error {
switch s {
case "darwin":
*h = Hdarwin
case "dragonfly":
*h = Hdragonfly
case "freebsd":
*h = Hfreebsd
case "linux", "android":
*h = Hlinux
case "nacl":
*h = Hnacl
case "netbsd":
*h = Hnetbsd
case "openbsd":
*h = Hopenbsd
case "plan9":
*h = Hplan9
case "solaris":
*h = Hsolaris
case "windows":
*h = Hwindows
case "windowsgui":
*h = Hwindowsgui
default:
return fmt.Errorf("invalid headtype: %q", s)
}
return nil
}
func (h *HeadType) String() string {
switch *h {
case Hdarwin:
return "darwin"
case Hdragonfly:
return "dragonfly"
case Hfreebsd:
return "freebsd"
case Hlinux:
return "linux"
case Hnacl:
return "nacl"
case Hnetbsd:
return "netbsd"
case Hopenbsd:
return "openbsd"
case Hplan9:
return "plan9"
case Hsolaris:
return "solaris"
case Hwindows:
return "windows"
case Hwindowsgui:
return "windowsgui"
}
return fmt.Sprintf("HeadType(%d)", *h)
}
// AsmBuf is a simple buffer to assemble variable-length x86 instructions into.
type AsmBuf struct {
buf [100]byte
off int
}
// Put1 appends one byte to the end of the buffer.
func (a *AsmBuf) Put1(x byte) {
a.buf[a.off] = x
a.off++
}
// Put2 appends two bytes to the end of the buffer.
func (a *AsmBuf) Put2(x, y byte) {
a.buf[a.off+0] = x
a.buf[a.off+1] = y
a.off += 2
}
// Put3 appends three bytes to the end of the buffer.
func (a *AsmBuf) Put3(x, y, z byte) {
a.buf[a.off+0] = x
a.buf[a.off+1] = y
a.buf[a.off+2] = z
a.off += 3
}
// Put4 appends four bytes to the end of the buffer.
func (a *AsmBuf) Put4(x, y, z, w byte) {
a.buf[a.off+0] = x
a.buf[a.off+1] = y
a.buf[a.off+2] = z
a.buf[a.off+3] = w
a.off += 4
}
// PutInt16 writes v into the buffer using little-endian encoding.
func (a *AsmBuf) PutInt16(v int16) {
a.buf[a.off+0] = byte(v)
a.buf[a.off+1] = byte(v >> 8)
a.off += 2
}
// PutInt32 writes v into the buffer using little-endian encoding.
func (a *AsmBuf) PutInt32(v int32) {
a.buf[a.off+0] = byte(v)
a.buf[a.off+1] = byte(v >> 8)
a.buf[a.off+2] = byte(v >> 16)
a.buf[a.off+3] = byte(v >> 24)
a.off += 4
}
// PutInt64 writes v into the buffer using little-endian encoding.
func (a *AsmBuf) PutInt64(v int64) {
a.buf[a.off+0] = byte(v)
a.buf[a.off+1] = byte(v >> 8)
a.buf[a.off+2] = byte(v >> 16)
a.buf[a.off+3] = byte(v >> 24)
a.buf[a.off+4] = byte(v >> 32)
a.buf[a.off+5] = byte(v >> 40)
a.buf[a.off+6] = byte(v >> 48)
a.buf[a.off+7] = byte(v >> 56)
a.off += 8
}
// Put copies b into the buffer.
func (a *AsmBuf) Put(b []byte) {
copy(a.buf[a.off:], b)
a.off += len(b)
}
// Insert inserts b at offset i.
func (a *AsmBuf) Insert(i int, b byte) {
a.off++
copy(a.buf[i+1:a.off], a.buf[i:a.off-1])
a.buf[i] = b
}
// Last returns the byte at the end of the buffer.
func (a *AsmBuf) Last() byte { return a.buf[a.off-1] }
// Len returns the length of the buffer.
func (a *AsmBuf) Len() int { return a.off }
// Bytes returns the contents of the buffer.
func (a *AsmBuf) Bytes() []byte { return a.buf[:a.off] }
// Reset empties the buffer.
func (a *AsmBuf) Reset() { a.off = 0 }
// Peek returns the byte at offset i.
func (a *AsmBuf) Peek(i int) byte { return a.buf[i] }

375
vendor/github.com/google/gops/internal/obj/mips/a.out.go generated vendored Normal file
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// cmd/9c/9.out.h from Vita Nuova.
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package mips
import "github.com/google/gops/internal/obj"
//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p mips
/*
* mips 64
*/
const (
NSNAME = 8
NSYM = 50
NREG = 32 /* number of general registers */
NFREG = 32 /* number of floating point registers */
)
const (
REG_R0 = obj.RBaseMIPS64 + iota
REG_R1
REG_R2
REG_R3
REG_R4
REG_R5
REG_R6
REG_R7
REG_R8
REG_R9
REG_R10
REG_R11
REG_R12
REG_R13
REG_R14
REG_R15
REG_R16
REG_R17
REG_R18
REG_R19
REG_R20
REG_R21
REG_R22
REG_R23
REG_R24
REG_R25
REG_R26
REG_R27
REG_R28
REG_R29
REG_R30
REG_R31
REG_F0
REG_F1
REG_F2
REG_F3
REG_F4
REG_F5
REG_F6
REG_F7
REG_F8
REG_F9
REG_F10
REG_F11
REG_F12
REG_F13
REG_F14
REG_F15
REG_F16
REG_F17
REG_F18
REG_F19
REG_F20
REG_F21
REG_F22
REG_F23
REG_F24
REG_F25
REG_F26
REG_F27
REG_F28
REG_F29
REG_F30
REG_F31
REG_HI
REG_LO
// co-processor 0 control registers
REG_M0
REG_M1
REG_M2
REG_M3
REG_M4
REG_M5
REG_M6
REG_M7
REG_M8
REG_M9
REG_M10
REG_M11
REG_M12
REG_M13
REG_M14
REG_M15
REG_M16
REG_M17
REG_M18
REG_M19
REG_M20
REG_M21
REG_M22
REG_M23
REG_M24
REG_M25
REG_M26
REG_M27
REG_M28
REG_M29
REG_M30
REG_M31
// FPU control registers
REG_FCR0
REG_FCR1
REG_FCR2
REG_FCR3
REG_FCR4
REG_FCR5
REG_FCR6
REG_FCR7
REG_FCR8
REG_FCR9
REG_FCR10
REG_FCR11
REG_FCR12
REG_FCR13
REG_FCR14
REG_FCR15
REG_FCR16
REG_FCR17
REG_FCR18
REG_FCR19
REG_FCR20
REG_FCR21
REG_FCR22
REG_FCR23
REG_FCR24
REG_FCR25
REG_FCR26
REG_FCR27
REG_FCR28
REG_FCR29
REG_FCR30
REG_FCR31
REG_LAST = REG_FCR31 // the last defined register
REG_SPECIAL = REG_M0
REGZERO = REG_R0 /* set to zero */
REGSP = REG_R29
REGSB = REG_R28
REGLINK = REG_R31
REGRET = REG_R1
REGARG = -1 /* -1 disables passing the first argument in register */
REGRT1 = REG_R1 /* reserved for runtime, duffzero and duffcopy */
REGRT2 = REG_R2 /* reserved for runtime, duffcopy */
REGCTXT = REG_R22 /* context for closures */
REGG = REG_R30 /* G */
REGTMP = REG_R23 /* used by the linker */
FREGRET = REG_F0
)
const (
BIG = 32766
)
const (
/* mark flags */
FOLL = 1 << 0
LABEL = 1 << 1
LEAF = 1 << 2
SYNC = 1 << 3
BRANCH = 1 << 4
LOAD = 1 << 5
FCMP = 1 << 6
NOSCHED = 1 << 7
NSCHED = 20
)
const (
C_NONE = iota
C_REG
C_FREG
C_FCREG
C_MREG /* special processor register */
C_HI
C_LO
C_ZCON
C_SCON /* 16 bit signed */
C_UCON /* 32 bit signed, low 16 bits 0 */
C_ADD0CON
C_AND0CON
C_ADDCON /* -0x8000 <= v < 0 */
C_ANDCON /* 0 < v <= 0xFFFF */
C_LCON /* other 32 */
C_DCON /* other 64 (could subdivide further) */
C_SACON /* $n(REG) where n <= int16 */
C_SECON
C_LACON /* $n(REG) where int16 < n <= int32 */
C_LECON
C_DACON /* $n(REG) where int32 < n */
C_STCON /* $tlsvar */
C_SBRA
C_LBRA
C_SAUTO
C_LAUTO
C_SEXT
C_LEXT
C_ZOREG
C_SOREG
C_LOREG
C_GOK
C_ADDR
C_TLS
C_TEXTSIZE
C_NCLASS /* must be the last */
)
const (
AABSD = obj.ABaseMIPS64 + obj.A_ARCHSPECIFIC + iota
AABSF
AABSW
AADD
AADDD
AADDF
AADDU
AADDW
AAND
ABEQ
ABFPF
ABFPT
ABGEZ
ABGEZAL
ABGTZ
ABLEZ
ABLTZ
ABLTZAL
ABNE
ABREAK
ACMPEQD
ACMPEQF
ACMPGED
ACMPGEF
ACMPGTD
ACMPGTF
ADIV
ADIVD
ADIVF
ADIVU
ADIVW
AGOK
ALUI
AMOVB
AMOVBU
AMOVD
AMOVDF
AMOVDW
AMOVF
AMOVFD
AMOVFW
AMOVH
AMOVHU
AMOVW
AMOVWD
AMOVWF
AMOVWL
AMOVWR
AMUL
AMULD
AMULF
AMULU
AMULW
ANEGD
ANEGF
ANEGW
ANOR
AOR
AREM
AREMU
ARFE
ASGT
ASGTU
ASLL
ASRA
ASRL
ASUB
ASUBD
ASUBF
ASUBU
ASUBW
ASYSCALL
ATLBP
ATLBR
ATLBWI
ATLBWR
AWORD
AXOR
/* 64-bit */
AMOVV
AMOVVL
AMOVVR
ASLLV
ASRAV
ASRLV
ADIVV
ADIVVU
AREMV
AREMVU
AMULV
AMULVU
AADDV
AADDVU
ASUBV
ASUBVU
/* 64-bit FP */
ATRUNCFV
ATRUNCDV
ATRUNCFW
ATRUNCDW
AMOVWU
AMOVFV
AMOVDV
AMOVVF
AMOVVD
ALAST
// aliases
AJMP = obj.AJMP
AJAL = obj.ACALL
ARET = obj.ARET
)

113
vendor/github.com/google/gops/internal/obj/mips/anames.go generated vendored Normal file
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// Generated by stringer -i a.out.go -o anames.go -p mips
// Do not edit.
package mips
import "github.com/google/gops/internal/obj"
var Anames = []string{
obj.A_ARCHSPECIFIC: "ABSD",
"ABSF",
"ABSW",
"ADD",
"ADDD",
"ADDF",
"ADDU",
"ADDW",
"AND",
"BEQ",
"BFPF",
"BFPT",
"BGEZ",
"BGEZAL",
"BGTZ",
"BLEZ",
"BLTZ",
"BLTZAL",
"BNE",
"BREAK",
"CMPEQD",
"CMPEQF",
"CMPGED",
"CMPGEF",
"CMPGTD",
"CMPGTF",
"DIV",
"DIVD",
"DIVF",
"DIVU",
"DIVW",
"GOK",
"LUI",
"MOVB",
"MOVBU",
"MOVD",
"MOVDF",
"MOVDW",
"MOVF",
"MOVFD",
"MOVFW",
"MOVH",
"MOVHU",
"MOVW",
"MOVWD",
"MOVWF",
"MOVWL",
"MOVWR",
"MUL",
"MULD",
"MULF",
"MULU",
"MULW",
"NEGD",
"NEGF",
"NEGW",
"NOR",
"OR",
"REM",
"REMU",
"RFE",
"SGT",
"SGTU",
"SLL",
"SRA",
"SRL",
"SUB",
"SUBD",
"SUBF",
"SUBU",
"SUBW",
"SYSCALL",
"TLBP",
"TLBR",
"TLBWI",
"TLBWR",
"WORD",
"XOR",
"MOVV",
"MOVVL",
"MOVVR",
"SLLV",
"SRAV",
"SRLV",
"DIVV",
"DIVVU",
"REMV",
"REMVU",
"MULV",
"MULVU",
"ADDV",
"ADDVU",
"SUBV",
"SUBVU",
"TRUNCFV",
"TRUNCDV",
"TRUNCFW",
"TRUNCDW",
"MOVWU",
"MOVFV",
"MOVDV",
"MOVVF",
"MOVVD",
"LAST",
}

44
vendor/github.com/google/gops/internal/obj/mips/anames0.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mips
var cnames0 = []string{
"NONE",
"REG",
"FREG",
"FCREG",
"MREG",
"HI",
"LO",
"ZCON",
"SCON",
"UCON",
"ADD0CON",
"AND0CON",
"ADDCON",
"ANDCON",
"LCON",
"DCON",
"SACON",
"SECON",
"LACON",
"LECON",
"DACON",
"STCON",
"SBRA",
"LBRA",
"SAUTO",
"LAUTO",
"SEXT",
"LEXT",
"ZOREG",
"SOREG",
"LOREG",
"GOK",
"ADDR",
"TLS",
"TEXTSIZE",
"NCLASS",
}

1783
vendor/github.com/google/gops/internal/obj/mips/asm0.go generated vendored Normal file
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vendor/github.com/google/gops/internal/obj/mips/list0.go generated vendored Normal file
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// cmd/9l/list.c from Vita Nuova.
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package mips
import (
"fmt"
"github.com/google/gops/internal/obj"
)
func init() {
obj.RegisterRegister(obj.RBaseMIPS64, REG_LAST&^1023+1024, Rconv)
obj.RegisterOpcode(obj.ABaseMIPS64, Anames)
}
func Rconv(r int) string {
if r == 0 {
return "NONE"
}
if r == REGG {
// Special case.
return "g"
}
if r == REGSB {
// Special case.
return "RSB"
}
if REG_R0 <= r && r <= REG_R31 {
return fmt.Sprintf("R%d", r-REG_R0)
}
if REG_F0 <= r && r <= REG_F31 {
return fmt.Sprintf("F%d", r-REG_F0)
}
if REG_M0 <= r && r <= REG_M31 {
return fmt.Sprintf("M%d", r-REG_M0)
}
if REG_FCR0 <= r && r <= REG_FCR31 {
return fmt.Sprintf("FCR%d", r-REG_FCR0)
}
if r == REG_HI {
return "HI"
}
if r == REG_LO {
return "LO"
}
return fmt.Sprintf("Rgok(%d)", r-obj.RBaseMIPS64)
}
func DRconv(a int) string {
s := "C_??"
if a >= C_NONE && a <= C_NCLASS {
s = cnames0[a]
}
var fp string
fp += s
return fp
}

1497
vendor/github.com/google/gops/internal/obj/mips/obj0.go generated vendored Normal file
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