mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-05 21:00:05 +00:00
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* Copyright (C) 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
|
|
|
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 <errno.h>
|
|
#include <sysdep.h>
|
|
#include <setjmp.h>
|
|
#include <bits/setjmp.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.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)
|
|
{
|
|
/* Restore registers and jump back. */
|
|
asm volatile ("lr %%r2,%0\n\t" /* PUT val in grp 2. */
|
|
"lm %%r6,%%r15,%1\n\t"
|
|
"br %%r14"
|
|
: : "r" (val == 0 ? 1 : val),
|
|
"m" (env->gregs[__JB_GPR6]) : "2" );
|
|
|
|
/* Avoid `volatile function does return' warnings. */
|
|
for (;;);
|
|
}
|