1995-02-18 02:27:10 +01:00
|
|
|
/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. i386 version.
|
2000-06-30 00:55:31 +02:00
|
|
|
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
1997-03-20 03:20:57 +01:00
|
|
|
This file is part of the GNU C Library.
|
1995-02-18 02:27:10 +01:00
|
|
|
|
1997-03-20 03:20:57 +01:00
|
|
|
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.
|
1995-02-18 02:27:10 +01:00
|
|
|
|
1997-03-20 03:20:57 +01:00
|
|
|
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.
|
1995-02-18 02:27:10 +01:00
|
|
|
|
1997-03-20 03:20:57 +01:00
|
|
|
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. */
|
1995-02-18 02:27:10 +01:00
|
|
|
|
|
|
|
|
/* 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>
|
2000-06-30 00:55:31 +02:00
|
|
|
#define _ASM
|
|
|
|
|
#define _SETJMP_H
|
|
|
|
|
#include <bits/setjmp.h>
|
|
|
|
|
#include "bp-sym.h"
|
|
|
|
|
#include "bp-asm.h"
|
1995-02-18 02:27:10 +01:00
|
|
|
|
2000-06-30 00:55:31 +02:00
|
|
|
ENTRY (BP_SYM (setjmp))
|
|
|
|
|
PUSH_SIGNAL_MASK (1)
|
1997-03-20 03:20:57 +01:00
|
|
|
#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
|
2000-06-30 00:55:31 +02:00
|
|
|
movl C_SYMBOL_NAME (BP_SYM (__sigsetjmp)@GOT)(%ecx), %ecx
|
1997-03-20 03:20:57 +01:00
|
|
|
jmp *%ecx
|
|
|
|
|
#else
|
2000-06-30 00:55:31 +02:00
|
|
|
jmp BP_SYM (__sigsetjmp)
|
1997-03-20 03:20:57 +01:00
|
|
|
#endif
|
2000-06-30 00:55:31 +02:00
|
|
|
END (BP_SYM (setjmp))
|
