Commit Graph

3 Commits

Author SHA1 Message Date
Adhemerval Zanella
1775babf2b More fixes for unsafe compiler optimization
GCC 4.9 -ftree-loop-distribute-patterns now may transform loops in
memcpy.  Add the alias to internal GLIBC symbol to avoid PLT creation.
2014-04-30 08:41:42 -05:00
Adhemerval Zanella
6a97b62a5b Fix unsafe compiler optimization
GCC 4.8 enables -ftree-loop-distribute-patterns at -O3 by default and
this optimization may transform loops into memset/memmove calls. Without
proper handling this may generate unexpected PLT calls on GLIBC.
This patch fixes by create memset/memmove alias to internal GLIBC
__GI_memset/__GI_memmove symbols.
2013-06-12 10:21:22 -05:00
Ulrich Drepper
b30542fb71 Update.
2004-03-08  Ulrich Drepper  <drepper@redhat.com>

	* Makerules: Use extra-modules.mk if modules-names is defined.
	* extra-modules.mk: New file.
	* dlfcn/Makefile (CPPFLAGS-modcxaatexit.c): Removed.
	* elf/Makefile (CFLAGS-interp.c): Add -DNOT_IN_libc=1.
	* csu/Makefile ($(objpfx)version-info.h): Pass -DNOT_IN_libc=1 to
	compiler.
	* Makefile (distribute): Add symbol-hacks.h.
	* sysdeps/generic/symbol-hacks.h: New file.
	* sysdeps/wordsize-32/symbol-hacks.h: New file.
	* sysdeps/wordsize-32/divdi3.c: Define *_internal aliases for __divdi3,
	__moddi3, __udivdi3, and __umoddi3.
	* include/libc-symbols.h: Include <symbol-hacks.h>.
2004-03-08 21:31:23 +00:00