glibc/ports/sysdeps/mips/bsd-_setjmp.S
2013-02-27 23:45:07 +00:00

45 lines
1.4 KiB
ArmAsm

/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. MIPS version.
Copyright (C) 1996-2013 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, 0)'.
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>
.set nomips16
#ifdef __PIC__
.option pic2
#endif
ENTRY (_setjmp)
#ifdef __PIC__
.set noreorder
.cpload t9
.set reorder
la t9, C_SYMBOL_NAME (__sigsetjmp)
#endif
move a1,zero /* Pass a second argument of zero. */
#ifdef __PIC__
jr t9
#else
j C_SYMBOL_NAME (__sigsetjmp)
#endif
END (_setjmp)
libc_hidden_def (_setjmp)