62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* Copyright (C) 2000, 2001, 2005 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 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, 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)
|
|
{
|
|
register int r2 __asm ("%r2") = val == 0 ? 1 : val;
|
|
#ifdef PTR_DEMANGLE
|
|
register uintptr_t r3 __asm ("%r3") = THREAD_GET_POINTER_GUARD ();
|
|
register void *r1 __asm ("%r1") = (void *) env;
|
|
#endif
|
|
/* Restore registers and jump back. */
|
|
asm volatile ("ld %%f6,48(%1)\n\t"
|
|
"ld %%f4,40(%1)\n\t"
|
|
#ifdef PTR_DEMANGLE
|
|
"lm %%r6,%%r13,0(%1)\n\t"
|
|
"lm %%r4,%%r5,32(%1)\n\t"
|
|
"xr %%r4,%2\n\t"
|
|
"xr %%r5,%2\n\t"
|
|
"lr %%r15,%%r5\n\t"
|
|
"br %%r4"
|
|
#else
|
|
"lm %%r6,%%r15,0(%1)\n\t"
|
|
"br %%r14"
|
|
#endif
|
|
: : "r" (r2),
|
|
#ifdef PTR_DEMANGLE
|
|
"r" (r1), "r" (r3)
|
|
#else
|
|
"a" (env)
|
|
#endif
|
|
);
|
|
|
|
/* Avoid `volatile function does return' warnings. */
|
|
for (;;);
|
|
}
|