diff options
Diffstat (limited to 'sysdeps/i386/bsd-setjmp.S')
| -rw-r--r-- | sysdeps/i386/bsd-setjmp.S | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/sysdeps/i386/bsd-setjmp.S b/sysdeps/i386/bsd-setjmp.S deleted file mode 100644 index 5710e1f42b..0000000000 --- a/sysdeps/i386/bsd-setjmp.S +++ /dev/null @@ -1,66 +0,0 @@ -/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. i386 version. - Copyright (C) 1994-2017 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, see - <http://www.gnu.org/licenses/>. */ - -/* This just does a tail-call to `__sigsetjmp (ARG, 1)'. - We cannot do it in C because it must be a tail-call, so frame-unwinding - in setjmp doesn't clobber the state restored by longjmp. */ - -#include <sysdep.h> -#include <jmpbuf-offsets.h> -#include <stap-probe.h> - -#define PARMS 4 /* no space for saved regs */ -#define JMPBUF PARMS -#define SIGMSK JMPBUF+4 - -ENTRY (setjmp) - /* Note that we have to use a non-exported symbol in the next - jump since otherwise gas will emit it as a jump through the - PLT which is what we cannot use here. */ - - movl JMPBUF(%esp), %eax - - /* Save registers. */ - movl %ebx, (JB_BX*4)(%eax) - movl %esi, (JB_SI*4)(%eax) - movl %edi, (JB_DI*4)(%eax) - leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return. */ -#ifdef PTR_MANGLE - PTR_MANGLE (%ecx) -#endif - movl %ecx, (JB_SP*4)(%eax) - movl 0(%esp), %ecx /* Save PC we are returning to now. */ - LIBC_PROBE (setjmp, 3, 4@%eax, -4@$1, 4@%ecx) -#ifdef PTR_MANGLE - PTR_MANGLE (%ecx) -#endif - movl %ecx, (JB_PC*4)(%eax) - movl %ebp, (JB_BP*4)(%eax) /* Save caller's frame pointer. */ - - /* Call __sigjmp_save. */ - pushl $1 - cfi_adjust_cfa_offset (4) - pushl 8(%esp) - cfi_adjust_cfa_offset (4) - call __sigjmp_save - popl %ecx - cfi_adjust_cfa_offset (-4) - popl %edx - cfi_adjust_cfa_offset (-4) - ret -END (setjmp) |