diff options
author | Mike Frysinger <vapier@gentoo.org> | 2005-02-15 01:33:05 +0000 |
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committer | Mike Frysinger <vapier@gentoo.org> | 2005-02-15 01:33:05 +0000 |
commit | fc59b6ec5140386c0072cae932d2812015016a5b (patch) | |
tree | 5d131ce249cfc8d2058e033b5feea39b64e7b7cb /libc/sysdeps/linux/x86_64/__longjmp.S | |
parent | 1fef64b22811709b2e640d341237bce1c8081203 (diff) |
some source files for x86_64
Diffstat (limited to 'libc/sysdeps/linux/x86_64/__longjmp.S')
-rw-r--r-- | libc/sysdeps/linux/x86_64/__longjmp.S | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/x86_64/__longjmp.S b/libc/sysdeps/linux/x86_64/__longjmp.S new file mode 100644 index 000000000..40e459e27 --- /dev/null +++ b/libc/sysdeps/linux/x86_64/__longjmp.S @@ -0,0 +1,45 @@ +/* Copyright (C) 2001, 2004 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 _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + +/* Jump to the position specified by ENV, causing the + setjmp call there to return VAL, or 1 if VAL is 0. + void __longjmp (__jmp_buf env, int val). */ +.globl __longjmp; +.type __longjmp,@function; +.align 16; +__longjmp: + /* Restore registers. */ + movq (JB_RBX*8)(%rdi),%rbx + movq (JB_RBP*8)(%rdi),%rbp + movq (JB_R12*8)(%rdi),%r12 + movq (JB_R13*8)(%rdi),%r13 + movq (JB_R14*8)(%rdi),%r14 + movq (JB_R15*8)(%rdi),%r15 + /* Set return value for setjmp. */ + test %esi,%esi + mov $01,%eax + cmove %eax,%esi + mov %esi, %eax + movq (JB_PC*8)(%rdi),%rdx + movq (JB_RSP*8)(%rdi),%rsp + jmpq *%rdx +.size __longjmp,.-__longjmp; |