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| author | Ulrich Drepper <drepper@redhat.com> | 2005-12-18 06:58:22 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-12-18 06:58:22 +0000 |
| commit | 827b70873b41363c864fb65e99829204595d0f85 (patch) | |
| tree | 5d2e3811b6b0da44f18a7c8920dffdc524e3cd66 /sysdeps/x86_64/setjmp.S | |
| parent | 8292f6fc71a60e92a23be053c500f504c6802c54 (diff) | |
| download | glibc-827b70873b41363c864fb65e99829204595d0f85.tar.gz glibc-827b70873b41363c864fb65e99829204595d0f85.tar.xz glibc-827b70873b41363c864fb65e99829204595d0f85.zip | |
* elf/Versions [GLIBC_PRIVATE]: Export __pointer_chk_guard if defined.
* elf/rtld.c: Define __pointer_chk_guard_local and if necessary __pointer_chk_guard. (_rtld_global_ro): Initialize _dl_pointer_guard. (dl_main): Initialize __pointer_chk_guard_local and either __pointer_chk_guard or TLS value if necessary. (process_envvars): Recognize and handle LD_POINTER_GUARD. * sysdeps/generic/ldsodefs.h (rtld_global_ro): Add _dl_pointer_guard. * sysdeps/i386/__longjmp.S: Use PTR_DEMANGLE for PC if defined. * sysdeps/x86_64/__longjmp.S: Likewise. * sysdeps/i386/bsd-_setjmp.S: Use PTR_MANGLE for PC if defined. * sysdeps/i386/bsd-_setjmp.S: Likewise. * sysdeps/i386/setjmp.S: Likewise. [IS_IN_rtld]: Avoid call to __sigjmp_save. * sysdeps/i386/setjmp.S: Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h: Define PTR_MANGLE and PTR_DEMANGLE. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise. * sysdeps/i386/elf/setjmp.S: Removed. * sysdeps/i386/elf/bsd-setjmp.S: Removed.
Diffstat (limited to 'sysdeps/x86_64/setjmp.S')
| -rw-r--r-- | sysdeps/x86_64/setjmp.S | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/sysdeps/x86_64/setjmp.S b/sysdeps/x86_64/setjmp.S index 811ab1d913..8af5502042 100644 --- a/sysdeps/x86_64/setjmp.S +++ b/sysdeps/x86_64/setjmp.S @@ -1,5 +1,5 @@ /* setjmp for x86-64. - Copyright (C) 2001, 2003 Free Software Foundation, Inc. + Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -34,13 +34,22 @@ ENTRY (__sigsetjmp) leaq 8(%rsp), %rdx /* Save SP as it will be after we return. */ movq %rdx, (JB_RSP*8)(%rdi) movq (%rsp), %rax /* Save PC we are returning to now. */ +#ifdef PTR_MANGLE + PTR_MANGLE (%rax) +#endif movq %rax, (JB_PC*8)(%rdi) +#if defined NOT_IN_libc && defined IS_IN_rtld + /* In ld.so we never save the signal mask. */ + xorl %eax, %eax + retq +#else /* Make a tail call to __sigjmp_save; it takes the same args. */ -#ifdef PIC +# ifdef PIC jmp C_SYMBOL_NAME (BP_SYM (__sigjmp_save))@PLT -#else +# else jmp BP_SYM (__sigjmp_save) +# endif #endif END (BP_SYM (__sigsetjmp)) hidden_def (__sigsetjmp) |