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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-02-27 22:21:58 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-02-27 22:21:58 +0000 |
| commit | ee055d4068587282af49054a36194c9a4237a2f2 (patch) | |
| tree | be7ee5618d4e11bd2a665ea02e2211cb4ec1f20d /gcc/defaults.h | |
| parent | a37f5734ff1fcdec50ba474bfc0aa7ae4e440167 (diff) | |
| download | gcc-ee055d4068587282af49054a36194c9a4237a2f2.tar.gz | |
* frame.h: Update some comments.
* defaults.h (TARGET_ATTRIBUTE_WEAK): Define.
* crtstuff.c (__register_frame_info, __deregister_frame_info): Declare
using TARGET_WEAK_ATTRIBUTE.
(__do_global_dtors_aux): Check if __deregister_frame_info is
zero before calling it.
(__do_global_dtors): Likewise.
(frame_dummy): Check if __register_frame_info is zero before
calling it.
(__frame_dummy): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25487 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/defaults.h')
| -rw-r--r-- | gcc/defaults.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/defaults.h b/gcc/defaults.h index 0fbf2b92af8..a0e3bfca57a 100644 --- a/gcc/defaults.h +++ b/gcc/defaults.h @@ -133,6 +133,22 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG); \ #endif #endif +/* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to + provide a weak attribute. Else define it to nothing. + + This would normally belong in gansidecl.h, but SUPPORTS_WEAK is + not available at that time. + + Note, this is only for use by target files which we know are to be + compiled by GCC. */ +#ifndef TARGET_ATTRIBUTE_WEAK +# if SUPPORTS_WEAK +# define TARGET_ATTRIBUTE_WEAK __attribute__ ((weak)) +# else +# define TARGET_ATTRIBUTE_WEAK +# endif +#endif + /* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that the rest of the DWARF 2 frame unwind support is also provided. */ #if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX) |