* stdlib/Makefile (tests): Add tst-makecontext.

	* stdlib/tst-makecontext.c: New test.

	* sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
	(__makecontext): Don't realign uc_mcontext.uc_regs.

4 files changed, 68 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index d02ff9d087..bf4cf428b9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2006-12-19  Jakub Jelinek  <jakub@redhat.com>
+
+	* stdlib/Makefile (tests): Add tst-makecontext.
+	* stdlib/tst-makecontext.c: New test.
+
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
+	(__makecontext): Don't realign uc_mcontext.uc_regs.
+
 2006-11-28  Jakub Jelinek  <jakub@redhat.com>
 
 	* elf/dl-support.c: Include dl-procinfo.h.
diff --git a/stdlib/Makefile b/stdlib/Makefile
index bfe679c2b1..2699ca61f6 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -67,7 +67,8 @@ tests		:= tst-strtol tst-strtod testmb testrand testsort testdiv   \
 		   tst-xpg-basename tst-random tst-random2 tst-bsearch	    \
 		   tst-limits tst-rand48 bug-strtod tst-setcontext	    \
 		   test-a64l tst-qsort tst-system testmb2 bug-strtod2	    \
-		   tst-atof1 tst-atof2 tst-strtod2 tst-strtod3 tst-rand48-2
+		   tst-atof1 tst-atof2 tst-strtod2 tst-strtod3 tst-rand48-2 \
+		   tst-makecontext
 
 include ../Makeconfig
 
diff --git a/stdlib/tst-makecontext.c b/stdlib/tst-makecontext.c
new file mode 100644
index 0000000000..cbce71fb92
--- /dev/null
+++ b/stdlib/tst-makecontext.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <stdlib.h>
+#include <stdio.h>
+#include <ucontext.h>
+
+ucontext_t ucp;
+char st1[8192];
+__thread int thr;
+
+void
+cf (int i)
+{
+  if (i != 78 || thr != 94)
+    {
+      printf ("i %d thr %d\n", i, thr);
+      exit (1);
+    }
+  exit (0);
+}
+
+int
+main (void)
+{
+  if (getcontext (&ucp) != 0)
+    {
+      puts ("getcontext failed");
+      return 1;
+    }
+  thr = 94;
+  ucp.uc_link = NULL;
+  ucp.uc_stack.ss_sp = st1;
+  ucp.uc_stack.ss_size = sizeof st1;
+  makecontext (&ucp, (void (*) ()) cf, 1, 78);
+  if (setcontext (&ucp) != 0)
+    {
+      puts ("setcontext failed");
+      return 1;
+    }
+  return 2;
+}
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
index 208a375ef3..9451f9eb36 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
@@ -26,9 +26,7 @@
 
 ENTRY(__makecontext)
 	/* Set up the first 7 args to the function in its registers */
-	addi	r11,r3,_UC_REG_SPACE+12
-	clrrwi  r11,r11,4
-	stw	r11,_UC_REGS_PTR(r3)
+	lwz	r11,_UC_REGS_PTR(r3)
 	stw	r6,_UC_GREGS+(PT_R3*4)(r11)
 	stw	r7,_UC_GREGS+(PT_R4*4)(r11)
 	stw	r8,_UC_GREGS+(PT_R5*4)(r11)