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| author | Ulrich Drepper <drepper@redhat.com> | 2005-06-26 18:14:26 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-06-26 18:14:26 +0000 |
| commit | 35f1e82763326f196fd068e92343643d8ed54ee3 (patch) | |
| tree | 74c6d155ca2e7c32503231b8ce186a0752bc924b /elf/stackguard-macros.h | |
| parent | 2f37117b013f77df863b198c3408555c49596174 (diff) | |
| download | glibc-35f1e82763326f196fd068e92343643d8ed54ee3.tar.gz glibc-35f1e82763326f196fd068e92343643d8ed54ee3.tar.xz glibc-35f1e82763326f196fd068e92343643d8ed54ee3.zip | |
* Versions.def (ld): Add GLIBC_2.4.
* configure.in: Add --enable-stackguard-randomization option.
(ENABLE_STACKGUARD_RANDOMIZE): New define.
* config.h.in (ENABLE_STACKGUARD_RANDOMIZE): Add.
* sysdeps/unix/sysv/linux/dl-osinfo.h: Include stdint.h.
(_dl_setup_stack_chk_guard): New inline function.
* sysdeps/generic/dl-osinfo.h: Include stdint.h.
(_dl_setup_stack_chk_guard): New inline function.
* elf/rtld.c (__stack_chk_guard): New variable.
(dl_main): Remove all traces of TLS_INIT_TP_EXPENSIVE.
Set __stack_chk_guard to _dl_setup_stack_chk_guard (),
use THREAD_SET_STACK_GUARD if defined.
* elf/Versions (ld): Export __stack_chk_guard@@GLIBC_2.4.
* sysdeps/generic/libc-start.c (__stack_chk_guard): New variable.
(__libc_start_main): Set __stack_chk_guard to
_dl_setup_stack_chk_guard (), use THREAD_SET_STACK_GUARD if defined.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Remove all
traces of TLS_INIT_TP_EXPENSIVE.
* debug/Versions (libc): Export __stack_chk_fail@@GLIBC_2.4.
* debug/Makefile (routines): Add stack_chk_fail.
(static-only-routines): Add stack_chk_fail_local.
* debug/stack_chk_fail_local.c: New file.
* debug/stack_chk_fail.c: New file.
* elf/Makefile: Add rules to build and run tst-stackguard1{,-static}
tests.
* elf/tst-stackguard1.c: New file.
* elf/tst-stackguard1-static.c: New file.
* elf/stackguard-macros.h: New file.
Diffstat (limited to 'elf/stackguard-macros.h')
| -rw-r--r-- | elf/stackguard-macros.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/elf/stackguard-macros.h b/elf/stackguard-macros.h new file mode 100644 index 0000000000..0fbf4d2c0b --- /dev/null +++ b/elf/stackguard-macros.h @@ -0,0 +1,30 @@ +#include <stdint.h> + +#ifdef __i386__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("movl %%gs:0x14, %0" : "=r" (x)); x; }) +#elif defined __x86_64__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("movq %%fs:0x28, %0" : "=r" (x)); x; }) +#elif defined __powerpc64__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("ld %0,-28688(13)" : "=r" (x)); x; }) +#elif defined __powerpc__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("lwz %0,-28680(2)" : "=r" (x)); x; }) +#elif defined __sparc__ && defined __arch64__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("ldx [%%g7+0x28], %0" : "=r" (x)); x; }) +#elif defined __sparc__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("ld [%%g7+0x14], %0" : "=r" (x)); x; }) +#elif defined __s390x__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("ear %0,%a0; sllg %0,%0,32; ear %0,%a1; lg %0,0x28(%0)" : "=r" (x)); x; }) +#elif defined __s390__ +# define STACK_CHK_GUARD \ + ({ uintptr_t x; asm ("ear %0,%%a0; l %0,0x14(%0)" : "=r" (x)); x; }) +#else +extern uintptr_t __stack_chk_guard; +# define STACK_CHK_GUARD __stack_chk_guard +#endif |