diff options
Diffstat (limited to 'sys-libs/glibc/files/setjmp.S')
| -rw-r--r-- | sys-libs/glibc/files/setjmp.S | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/sys-libs/glibc/files/setjmp.S b/sys-libs/glibc/files/setjmp.S deleted file mode 100644 index 40710be1ef51..000000000000 --- a/sys-libs/glibc/files/setjmp.S +++ /dev/null @@ -1,77 +0,0 @@ -/* setjmp for i386, ELF version. - Copyright (C) 1995, 1996, 1997, 2000 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <sysdep.h> -#define _ASM -#define _SETJMP_H -#include <bits/setjmp.h> - - /* We include the BSD entry points here as well but we make - them weak. */ -ENTRY (setjmp) - .weak C_SYMBOL_NAME (setjmp) - popl %eax /* Pop return PC. */ - popl %ecx /* Pop jmp_buf argument. */ - pushl $1 /* Push second argument of zero. */ - pushl %ecx /* Push back first argument. */ - pushl %eax /* Push back return PC. */ - /* 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. */ - jmp .Linternal_sigsetjmp -END (setjmp) - - /* Binary compatibility entry point. */ -ENTRY (_setjmp) - .weak C_SYMBOL_NAME (_setjmp) -ENTRY (__setjmp) - popl %eax /* Pop return address. */ - popl %ecx /* Pop jmp_buf. */ - pushl $0 /* Push zero argument. */ - pushl %ecx /* Push jmp_buf. */ - pushl %eax /* Push back return address. */ - -ENTRY (__sigsetjmp) -.Linternal_sigsetjmp = __sigsetjmp - movl 4(%esp), %eax /* User's jmp_buf in %eax. */ - /* Save registers. */ - movl %ebx, (JB_BX*4)(%eax) - movl %esi, (JB_SI*4)(%eax) - movl %edi, (JB_DI*4)(%eax) - movl %ebp, (JB_BP*4)(%eax) - leal 4(%esp), %ecx /* Save SP as it will be after we return. */ - movl %ecx, (JB_SP*4)(%eax) - movl 0(%esp), %ecx /* Save PC we are returning to now. */ - movl %ecx, (JB_PC*4)(%eax) - - /* Make a tail call to __sigjmp_save; it takes the same args. */ -#ifdef PIC - /* We cannot use the PLT, because it requires that %ebx be set, but - we can't save and restore our caller's value. Instead, we do an - indirect jump through the GOT, using for the temporary register - %ecx, which is call-clobbered. */ - call here -here: popl %ecx - addl $_GLOBAL_OFFSET_TABLE_+[.-here], %ecx - movl C_SYMBOL_NAME(__sigjmp_save@GOT)(%ecx), %ecx - jmp *%ecx -#else - jmp __sigjmp_save -#endif -END (__sigsetjmp) |