diff options
Diffstat (limited to 'sysdeps/x86_64/bits')
| -rw-r--r-- | sysdeps/x86_64/bits/setjmp.h | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/sysdeps/x86_64/bits/setjmp.h b/sysdeps/x86_64/bits/setjmp.h index be39482d09..ba5dd2c112 100644 --- a/sysdeps/x86_64/bits/setjmp.h +++ b/sysdeps/x86_64/bits/setjmp.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2002 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 @@ -22,26 +22,53 @@ # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." #endif +#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) +# 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 typedef long int __jmp_buf[8]; +# else +typedef int __jmp_buf[6]; +# endif /* Test if longjmp to JMPBUF would unwind the frame containing a local variable at ADDRESS. */ -#define _JMPBUF_UNWINDS(jmpbuf, 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 |