47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <sysdep.h>
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#include <setjmp.h>
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#include <bits/setjmp.h>
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#include <stdlib.h>
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#include <unistd.h>
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/* Jump to the position specified by ENV, causing the
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setjmp call there to return VAL, or 1 if VAL is 0. */
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void
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__longjmp (__jmp_buf env, int val)
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{
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/* Restore registers and jump back. */
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asm volatile ("lgr %%r2,%0\n\t" /* Put val in grp 2. */
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"ld %%f7,104(%1)\n\t"
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"ld %%f5,96(%1)\n\t"
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"ld %%f3,88(%1)\n\t"
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"ld %%f1,80(%1)\n\t"
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"lmg %%r6,%%r15,0(%1)\n\t"
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"br %%r14"
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: : "r" (val == 0 ? 1 : val),
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"a" (env) : "2" );
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/* Avoid `volatile function does return' warnings. */
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for (;;);
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}
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