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author | Mike Frysinger <vapier@gentoo.org> | 2005-02-15 01:27:10 +0000 |
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committer | Mike Frysinger <vapier@gentoo.org> | 2005-02-15 01:27:10 +0000 |
commit | 1fef64b22811709b2e640d341237bce1c8081203 (patch) | |
tree | 1ae6ea157aa30281b73e42ed1607ebc6a601faaf /libc/sysdeps/linux/x86_64/bits/setjmp.h | |
parent | dc3e0e4695d9cf5700ab4b3b245f227be21b907a (diff) | |
download | uClibc-alpine-1fef64b22811709b2e640d341237bce1c8081203.tar.bz2 uClibc-alpine-1fef64b22811709b2e640d341237bce1c8081203.tar.xz |
headers for x86_64
Diffstat (limited to 'libc/sysdeps/linux/x86_64/bits/setjmp.h')
-rw-r--r-- | libc/sysdeps/linux/x86_64/bits/setjmp.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/x86_64/bits/setjmp.h b/libc/sysdeps/linux/x86_64/bits/setjmp.h new file mode 100644 index 000000000..96646efdd --- /dev/null +++ b/libc/sysdeps/linux/x86_64/bits/setjmp.h @@ -0,0 +1,78 @@ +/* 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Define the machine-dependent type `jmp_buf'. x86-64 version. */ +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#if !defined _SETJMP_H && !defined _PTHREAD_H +# 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) +# 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. */ +# 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 */ |