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* sysdeps/unix/sysv/linux/x86_64/sysdep.h (PTR_MANGLE): Define C

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version for inside ld.so.

	* elf/rtld.c (dl_main): Don't use hp timing code unless it's available.
This commit is contained in:
Ulrich Drepper 2005-12-18 21:09:20 +00:00
parent d87921ee19
commit 7725f8749a
3 changed files with 12 additions and 3 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2005-12-18 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (PTR_MANGLE): Define C
version for inside ld.so.
* elf/rtld.c (dl_main): Don't use hp timing code unless it's available.
* sysdeps/powerpc/powerpc32/setjmp-common.S [IS_IN_rtld]: Avoid
call to __sigjmp_save.
* sysdeps/powerpc/powerpc64/setjmp-common.S: Likewise.

6
elf/rtld.c
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@ -1837,10 +1837,12 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
if (GLRO(dl_pointer_guard))
{
// XXX If it is cheap, we should use a separate value.
uintptr_t pointer_chk_guard;
uintptr_t pointer_chk_guard = stack_chk_guard;
#ifndef HP_TIMING_NONAVAIL
hp_timing_t now;
HP_TIMING_NOW (now);
pointer_chk_guard = stack_chk_guard ^ now;
pointer_chk_guard ^= now;
#endif
#ifdef THREAD_SET_POINTER_GUARD
THREAD_SET_POINTER_GUARD (pointer_chk_guard);
#endif

4
sysdeps/unix/sysv/linux/x86_64/sysdep.h
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@ -320,7 +320,9 @@
# define PTR_MANGLE(reg) xorq __pointer_chk_guard_local(%rip), reg
# define PTR_DEMANGLE(reg) PTR_MANGLE (reg)
# else
# error "Define these if necessary"
# define PTR_MANGLE(reg) asm ("xorq __pointer_chk_guard_local(%%rip), %0"\
: "=r" (reg) : "0" (reg))
# define PTR_DEMANGLE(reg) PTR_MANGLE (reg)
# endif
#else
# ifdef __ASSEMBLER__