PATCH RFC: Remove fork from collect2

[Andrew Pinski]

On Mar 20, 2004, at 06:50, Ian Lance Taylor wrote:

> Ian Lance Taylor <ian@wasabisystems.com> writes:
>
>> 3) Add restFP and saveFP to FSF gcc.  Overall consistency would appear
>>    to be a good thing.
>
> Upon reflection, I believe that this would be the solution to the
> issue.  Besides fixing this problem, it would permit FSF gcc to
> consistently link files compiled by Darwin gcc, which seems like a
> good thing to me.
>
> Unfortunately, since I don't have a Darwin system, I can't easily
> write a patch.  However, it's easy to do for anybody who has the
> source code for the Darwin compiler.  Just add a file like
> rs6000/darwin-tramp.asm and put in the definitions of saveFP and
> restFP.  Then add the name of the file to LIB2FUNCS_EXTRA in
> rs6000/t-darwin.  It sounds like saveFP and restFP will normally be
> used together, so it should be fine to put both functions in the same
> file.


Here is the patch to add saveFP/restFP and other asm functions which
Apple's libgcc exports (saveVEC/restVEC/saveVEC_vr11/restVEC_vr10
[the save/restore functions for altivec] and
save_world/rest_world/eh_rest_world_r10/rest_world_eh_r7r8
[functions which is used for exception-handling]).  They are all
private_extern functions (aka hidden).

Ok? Bootstrapped all languages (except for java as there is another
bootstrap problem which I am going to fix) and tested on
powerpc-apple-darwin7.2.0?

Thanks,
Andrew Pinski

ChangeLog:

	* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Add darwin-fpsave.asm,
	darwin-vecsave.asm, and darwin-world.asm.
	(TARGET_LIBGCC2_CFLAGS): Add -Wa,-force_cpusubtype_ALL as the asm files
	contain altivec instructions.
	* config/rs6000/darwin-fpsave.asm: New file.
	* config/rs6000/darwin-vecsave.asm: New file.
	* config/rs6000/darwin-world.asm: New file.
Patch:
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