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Update v-vvork-in-progress-2020-01-03.markdown

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@ -177,7 +177,21 @@ main.v:1:14: cannot import module "mymodule" (not found)
3| fn main() { 3| fn main() {
``` ```
...oh dear. Can we recover this with gcc? ...oh dear. Can we recover this with gcc? Let's get the symbol name with `nm`:
```console
$ nm hellomodule.o | grep print_1_1'$'
0000000000000000 T hellomodule__print_1_1
```
So the first print function is exported as `hellomodule__print_1_1`, and it was
declared as:
```v
pub fn print_1_1() { println('hello, 1 1!') }
```
This means we should be able to declare/use it like we would a normal C function:
``` ```
// main.c // main.c
@ -192,7 +206,8 @@ void main__main() {
I copied hellomodule.o to the current working directory to test this. I also I copied hellomodule.o to the current working directory to test this. I also
used the C output of the `hello world` program below and replaced the used the C output of the `hello world` program below and replaced the
`main__main` function with a forward declaration. I called this `main__main` function with a forward declaration. I called this
[hello.c](https://clbin.com/7Yisp). [hello.c](https://clbin.com/7Yisp). This is a very horrible no good hack but
it worked enough to pass the linker's muster.
```console ```console
$ gcc -o main.o -c main.c $ gcc -o main.o -c main.c
@ -345,3 +360,12 @@ Overall, V is a work in progress. It has made a lot of progress since the last
time I talked about it, but the 1.0 release promise has been shattered. If I was time I talked about it, but the 1.0 release promise has been shattered. If I was
going to suggest anything to the V author, don't give release dates or going to suggest anything to the V author, don't give release dates or
timetables. This kind of thing needs to be ready when it's ready and no sooner. timetables. This kind of thing needs to be ready when it's ready and no sooner.
Also if you are writing a compiler and posting benchmarks, please make my life
easier when trying to verify them. Put the entire repo you're using for the
benchmarks somewhere. Include the exact commands you used to collect those
benchmarks. Make it obvious how they were collected, what hardware they were run
on, etc. This stuff really helps a lot when trying to verify them. Otherwise I
have to guess, and I might get it wrong. I don't know if my benchmark is an entirely
fair one, but given the lack of information on how to replicate it it's probably
going to have to do.