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authorAndreas Schwab <schwab@redhat.com>2010-09-15 07:38:19 -0700
committerPetr Baudis <pasky@suse.cz>2010-11-09 02:16:20 +0100
commitdca25feaf72a073df5ca7cca4de5e5d0fccacc36 (patch)
tree96f4f0a9df5aeba92ca69824e9b9743c7a7604bb /sysdeps/s390/s390-64
parente6ff4b8b261116ccf2867bc91891ad8f3f33ea24 (diff)
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Fix register conflict in s390 ____longjmp_chk
(cherry picked from commit 7291c56f9d6f5861d1c001bc63a364f047a74738)
Diffstat (limited to 'sysdeps/s390/s390-64')
-rw-r--r--sysdeps/s390/s390-64/__longjmp.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/sysdeps/s390/s390-64/__longjmp.c b/sysdeps/s390/s390-64/__longjmp.c
index 445bd3baf3..313b338546 100644
--- a/sysdeps/s390/s390-64/__longjmp.c
+++ b/sysdeps/s390/s390-64/__longjmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2005, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2005, 2009, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
 
@@ -29,16 +29,19 @@
 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;
+  uintptr_t guard = THREAD_GET_POINTER_GUARD ();
 # ifdef CHECK_SP
-  CHECK_SP (env, r3);
+  CHECK_SP (env, guard);
 # endif
 #elif defined CHECK_SP
   CHECK_SP (env, 0);
 #endif
+  register long int r2 __asm ("%r2") = val == 0 ? 1 : val;
+#ifdef PTR_DEMANGLE
+  register uintptr_t r3 __asm ("%r3") = 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"