[Issue 15060] Can't load a D shared library first, then load a C shared library

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15060

--- Comment #10 from Jacob Carlborg <doob at me.com> ---
(In reply to ponce from comment #9)
> If this need back-end support, maybe Walter could implement global ctor/dtor
> like in LDC?

DMD already does what's necessary for ELF (Linux, FreeBSD). Just do the same
for Mach-O and OS X.

> FWIW, I'm having problem with the workaround (calling
> dyld_register_image_state_change_handler crash). It's as if
> dyld_register_image_state_change_handler has a different signature or
> calling convention in 32-bit.

The declaration of dyld_register_image_state_change_handler is available here
[1]. The declaration of "dyld_image_info" [2] and "mach_header" [3].

Looking at your implementation, both the function pointer for the callback and
the function it points to need to be declared as extern(C).

[1]
http://www.opensource.apple.com/source/dyld/dyld-96.2/include/mach-o/dyld_priv.h
[2]
http://opensource.apple.com/source/dyld/dyld-132.13/include/mach-o/dyld_images.h
[3]
http://www.opensource.apple.com/source/xnu/xnu-1456.1.26/EXTERNAL_HEADERS/mach-o/loader.h

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