diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
| commit | a334319f6530564d22e775935d9c91663623a1b4 (patch) | |
| tree | b5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/x86_64/bits/setjmp.h | |
| parent | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff) | |
| download | glibc-a334319f6530564d22e775935d9c91663623a1b4.zip glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.bz2 | |
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/x86_64/bits/setjmp.h')
| -rw-r--r-- | sysdeps/x86_64/bits/setjmp.h | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/sysdeps/x86_64/bits/setjmp.h b/sysdeps/x86_64/bits/setjmp.h index c9b98b2..96646ef 100644 --- a/sysdeps/x86_64/bits/setjmp.h +++ b/sysdeps/x86_64/bits/setjmp.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001,2002,2003,2005,2006 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2002, 2003 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 @@ -26,6 +26,36 @@ #include <bits/wordsize.h> +#if __WORDSIZE == 64 + +/* We only need to save callee-saved registers plus stackpointer and + program counter. */ +# if defined __USE_MISC || defined _ASM +# define JB_RBX 0 +# define JB_RBP 1 +# define JB_R12 2 +# define JB_R13 3 +# define JB_R14 4 +# define JB_R15 5 +# define JB_RSP 6 +# define JB_PC 7 +# define JB_SIZE (8*8) +# endif + +#else + +# if defined __USE_MISC || defined _ASM +# define JB_BX 0 +# define JB_SI 1 +# define JB_DI 2 +# define JB_BP 3 +# define JB_SP 4 +# define JB_PC 5 +# define JB_SIZE 24 +# endif + +#endif + #ifndef _ASM # if __WORDSIZE == 64 @@ -34,6 +64,15 @@ typedef long int __jmp_buf[8]; typedef int __jmp_buf[6]; # endif +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +# if __WORDSIZE == 64 +# define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_RSP]) +# else +# define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_SP]) +# endif #endif #endif /* bits/setjmp.h */ |