[BZ #269]

Update.
2004-07-16  Steven Munroe  <sjmunroe@us.ibm.com>

	[BZ #269]
	* setjmp/Makefile (tests): Add  bug269-setjmp.
	* setjmp/bug269-setjmp.c: New file.
	* sysdeps/powerpc/powerpc64/__longjmp-common.S [SHARED && !IS_IN_rtld]:
	Store R2 from jmpbuf in callers TOC save area.
	* sysdeps/powerpc/powerpc64/bsd-_setjmp.S [SHARED && !IS_IN_rtld]:
	Store R2 in TOC save area.
	* sysdeps/powerpc/powerpc64/setjmp-common.S [SHARED && !IS_IN_rtld]:
	Copy TOC save area from previous frame as R2 (TOC) in jmpbuf.

ChangeLog

@@ -1,3 +1,15 @@
+2004-07-16  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	[BZ #269]
+	* setjmp/Makefile (tests): Add  bug269-setjmp.
+	* setjmp/bug269-setjmp.c: New file.
+	* sysdeps/powerpc/powerpc64/__longjmp-common.S [SHARED && !IS_IN_rtld]:
+	Store R2 from jmpbuf in callers TOC save area.
+	* sysdeps/powerpc/powerpc64/bsd-_setjmp.S [SHARED && !IS_IN_rtld]:
+	Store R2 in TOC save area.
+	* sysdeps/powerpc/powerpc64/setjmp-common.S [SHARED && !IS_IN_rtld]:
+	Copy TOC save area from previous frame as R2 (TOC) in jmpbuf.
+
 2004-07-16  Jakub Jelinek  <jakub@redhat.com>
 
 	* locale/newlocale.c: Include bits/libc-lock.h.

setjmp/Makefile

@@ -26,7 +26,7 @@ headers	:= setjmp.h bits/setjmp.h
 routines	:= setjmp sigjmp bsd-setjmp bsd-_setjmp \
 		   longjmp __longjmp jmp-unwind
 
-tests		:= tst-setjmp jmpbug
+tests		:= tst-setjmp jmpbug bug269-setjmp
 
 
 include ../Rules

setjmp/bug269-setjmp.c

@@ -0,0 +1,107 @@
+/* Copyright (C) 2004 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.  */ ;
+
+/* Test case for Bugzilla # 269 */
+
+#include <stdio.h>
+#include <setjmp.h>
+#include <stdlib.h>
+
+jmp_buf buf1;
+jmp_buf buf2;
+int *p;
+int n_x = 6;
+
+static int g_counter = 0;
+
+int
+f (void) 
+{
+  static int counter = 0;
+  static int way_point1 = 3;
+  static int way_point2 = 2;
+  int lose = 0;
+
+  if (setjmp (buf1) != 101)
+    {
+      int a[n_x];		/* reallocate stack space */
+      g_counter++;
+      p = &a[0];
+      if (g_counter < 5)
+	longjmp (buf1, 2);
+      else if (g_counter == 5)
+	longjmp (buf1, 101);
+      else
+	{
+	  _setjmp (buf2);
+	  _longjmp (buf1, 101);
+	}
+    }
+
+  way_point1--;
+
+  if (counter == 0)
+    {
+      counter++;
+      {
+	int a[n_x];		/* reallocate stack space */
+	g_counter++;
+	p = &a[0];
+	if (g_counter < 5)
+	  longjmp (buf1, 2);
+	else if (g_counter == 5)
+	  longjmp (buf1, 101);
+	else
+	  {
+	    _setjmp (buf2);
+	    _longjmp (buf1, 101);
+	  }
+      }
+    }
+
+  way_point2--;
+
+  if (counter == 1)
+    {
+      counter++;
+      longjmp (buf2, 2);
+    }
+
+  lose = !(way_point1 == 0 && way_point2 == 0
+	   && g_counter == 6 && counter == 2);
+
+  return lose;
+}
+
+static int
+do_test (void)
+{
+  int lose;
+
+  lose = f ();
+
+  if (lose)
+    puts ("Test FAILED!");
+  else
+    puts ("Test succeeded!");
+
+  return lose ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"

sysdeps/powerpc/powerpc64/__longjmp-common.S

@@ -112,6 +112,9 @@ no_vmx:
 	ld r0,(JB_LR*8)(r3)
 	ld r14,((JB_GPRS+0)*8)(r3)
 	lfd fp14,((JB_FPRS+0)*8)(r3)
+#if defined SHARED && !defined IS_IN_rtld
+	std r2,40(r1)	/* Restore the callers TOC save area.  */
+#endif
 	ld r15,((JB_GPRS+1)*8)(r3)
 	lfd fp15,((JB_FPRS+1)*8)(r3)
 	ld r16,((JB_GPRS+2)*8)(r3)
@@ -125,6 +128,7 @@ no_vmx:
 	ld r20,((JB_GPRS+6)*8)(r3)
 	lfd fp20,((JB_FPRS+6)*8)(r3)
 	mtlr r0
+/* 	std r2,40(r1)	Restore the TOC save area.  */
 	ld r21,((JB_GPRS+7)*8)(r3)
 	lfd fp21,((JB_FPRS+7)*8)(r3)
 	ld r22,((JB_GPRS+8)*8)(r3)

sysdeps/powerpc/powerpc64/bsd-_setjmp.S

@@ -47,6 +47,9 @@ default_symbol_version (__vmx_setjmp,_setjmp,GLIBC_2.3.4)
    as a libc_hidden_proto & is used in sysdeps/generic/libc-start.c
    if HAVE_CLEANUP_JMP_BUF is defined */
 ENTRY (BP_SYM (__GI__setjmp))
+#if defined SHARED && !defined IS_IN_rtld
+	std r2,40(r1)	/* Save the callers TOC in the save area.  */
+#endif
 	li r4,0			/* Set second argument to 0.  */
 	b JUMPTARGET(BP_SYM (__vmx__sigsetjmp))
 END (BP_SYM (__GI__setjmp))

sysdeps/powerpc/powerpc64/setjmp-common.S

@@ -44,7 +44,12 @@ ENTRY (BP_SYM (__sigsetjmp))
 	CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
 	std  r1,(JB_GPR1*8)(3)
 	mflr r0
+#if defined SHARED && !defined IS_IN_rtld
+	ld   r5,40(r1)	/* Retrieve the callers TOC.  */
+	std  r5,(JB_GPR2*8)(3)
+#else
 	std  r2,(JB_GPR2*8)(3)
+#endif
 	std  r14,((JB_GPRS+0)*8)(3)
 	stfd fp14,((JB_FPRS+0)*8)(3)
 	std  r0,(JB_LR*8)(3)