diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2003-09-17 08:47:44 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-09-17 08:47:44 +0000 |
| commit | a4db3439f1177cf5c5ceb80bfa3f3a2cef00fc0e (patch) | |
| tree | e21a8cd5a2222281888d37b530d360e92995abd7 /sysdeps/i386/Makefile | |
| parent | 6c052003bda07641309dcd4fe4a5158d24f5d607 (diff) | |
Update.
2003-09-15 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/Makefile (sysdep-CFLAGS): If not in math or csu
subdir, add -mpreferred-stack-boundary=4, with few exceptions.
2003-09-17 Jakub Jelinek <jakub@redhat.com>
* Makeconfig (stack-align-test-flags): Set.
* stdlib/Makefile (CFLAGS-tst-bsearch.c): Add
$(stack-align-test-flags).
* stdlib/tst-bsearch.c: Include tst-stack-align.h.
(align_check): New var.
(comp): Use TEST_STACK_ALIGN macro.
(do_test): Fail if align_check != 1.
* sysdeps/generic/tst-stack-align.h: New file.
* sysdeps/i386/i686/Makefile (stack-align-test-flags): Add -msse.
* sysdeps/i386/i686/tst-stack-align.h: New file.
Diffstat (limited to 'sysdeps/i386/Makefile')
| -rw-r--r-- | sysdeps/i386/Makefile | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile index ba0d21f13f..56027703ce 100644 --- a/sysdeps/i386/Makefile +++ b/sysdeps/i386/Makefile @@ -20,3 +20,38 @@ CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused CFLAGS-dl-load.c += -Wno-unused CFLAGS-dl-reloc.c += -Wno-unused endif + +# Most of the glibc routines don't ever call user defined callbacks +# nor use any FPU or SSE* and as such don't need bigger %esp alignment +# than 4 bytes. +# Lots of routines in math will use FPU, so make math subdir an exception +# here. +ifeq ($(subdir),math) +sysdep-CFLAGS += -mpreferred-stack-boundary=4 +else +ifeq ($(subdir),csu) +sysdep-CFLAGS += -mpreferred-stack-boundary=4 +else +sysdep-CFLAGS += -mpreferred-stack-boundary=2 +# Likewise, any function which calls user callbacks +uses-callbacks += -mpreferred-stack-boundary=4 +endif +endif + +# And a couple of other routines +ifeq ($(subdir),stdlib) +CFLAGS-exit.c += -mpreferred-stack-boundary=4 +endif +ifeq ($(subdir),elf) +CFLAGS-dl-init.c += -mpreferred-stack-boundary=4 +CFLAGS-dl-fini.c += -mpreferred-stack-boundary=4 +CFLAGS-dl-open.c += -mpreferred-stack-boundary=4 +CFLAGS-dl-close.c += -mpreferred-stack-boundary=4 +CFLAGS-dl-error.c += -mpreferred-stack-boundary=4 +endif +ifeq ($(subdir),dlfcn) +CFLAGS-dlopen.c += -mpreferred-stack-boundary=4 +CFLAGS-dlopenold.c += -mpreferred-stack-boundary=4 +CFLAGS-dlclose.c += -mpreferred-stack-boundary=4 +CFLAGS-dlerror.c += -mpreferred-stack-boundary=4 +endif |