equivalent of __attribute__((constructor))

[Jacob Carlborg]

On 2013-05-23 06:27, Ellery Newcomer wrote:
> In the context of shared libraries, with gcc
>
> __attribute__((constructor))
> void myfunc() { .. }
>
> is used to make myfunc be called upon loading of the shared library (you
> can tell I know what I am talking about here) via some field in the ELF
> headers, apparently. Is there any way to get our trusty d compilers to
> do the equivalent?
>
> Sure, Ellery, we have this awesome feature called module constructors.
> Check em out.
>
> Ehh, I would be using this to initialize druntime...
>
> You could just define _init, couldn't you?
>
> Yes, but there is only one _init, while the above can be used with
> multiple functions and thus wouldn't inadvertently cause important code
> to not run. If I don't have to, I'd rather not.
>
> Wait, why are you initializing druntime?
>
> Because druntime isn't set up to do it yet for c main calling d shared
> lib. You'd think it would need the same sort of functionality when it
> does implement it, though.

I don't know if it's automatically linked but here you go:

https://github.com/D-Programming-Language/druntime/blob/master/src/rt/dylib_fixes.c

-- 
/Jacob Carlborg