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Diffstat (limited to 'sysdeps/s390/s390-64/__longjmp.c')
-rw-r--r--sysdeps/s390/s390-64/__longjmp.c41
1 files changed, 12 insertions, 29 deletions
diff --git a/sysdeps/s390/s390-64/__longjmp.c b/sysdeps/s390/s390-64/__longjmp.c
index 030fb5b515..80abd3849a 100644
--- a/sysdeps/s390/s390-64/__longjmp.c
+++ b/sysdeps/s390/s390-64/__longjmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
@@ -29,35 +29,18 @@
void
__longjmp (__jmp_buf env, int val)
{
- register long 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 %%f7,104(%1)\n\t"
- "ld %%f5,96(%1)\n\t"
- "ld %%f3,88(%1)\n\t"
- "ld %%f1,80(%1)\n\t"
-#ifdef PTR_DEMANGLE
- "lmg %%r6,%%r13,0(%1)\n\t"
- "lmg %%r4,%%r5,64(%1)\n\t"
- "xgr %%r4,%2\n\t"
- "xgr %%r5,%2\n\t"
- "lgr %%r15,%%r5\n\t"
- "br %%r4"
-#else
- "lmg %%r6,%%r15,0(%1)\n\t"
- "br %%r14"
-#endif
- : : "r" (r2),
-#ifdef PTR_DEMANGLE
- "r" (r1), "r" (r3)
-#else
- "a" (env)
-#endif
- );
+ /* Restore registers and jump back. */
+ asm volatile ("lgr %%r2,%0\n\t" /* Put val in grp 2. */
+ "ld %%f7,104(%1)\n\t"
+ "ld %%f5,96(%1)\n\t"
+ "ld %%f3,88(%1)\n\t"
+ "ld %%f1,80(%1)\n\t"
+ "lmg %%r6,%%r15,0(%1)\n\t"
+ "br %%r14"
+ : : "r" (val == 0 ? 1 : val),
+ "a" (env) : "2" );
/* Avoid `volatile function does return' warnings. */
for (;;);
}
+