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e1bcf9b |
2005-07-25 Jeff Johnstno <jjohnstn@redhat.com>
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* libunwind-frame.c (libunwind_frame_prev_register): Check valuep
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is not NULL before copying cursor address into it.
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testsuite:
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2005-07-25 Jeff Johnstno <jjohnstn@redhat.com>
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e1bcf9b |
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* gdb.arch/ia64-sigtramp.exp: New test.
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* gdb.arch/ia64-sigtramp.c: Ditto.
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--- gdb-6.3/gdb/testsuite/gdb.arch/ia64-sigtramp.c.fix 2005-07-25 16:42:46.000000000 -0400
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+++ gdb-6.3/gdb/testsuite/gdb.arch/ia64-sigtramp.c 2005-07-25 16:42:08.000000000 -0400
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@@ -0,0 +1,23 @@
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+#include <stdio.h>
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+#include <signal.h>
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+
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+int *l;
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+
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+void x (int sig)
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+{
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+ printf ("in signal handler for signal %d\n", sig);
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+}
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+
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+int main()
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+{
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+ int k;
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+
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+ signal (SIGSEGV, &x);
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+
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+ k = *l;
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+
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+ printf ("k is %d\n", k);
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+
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+ return 0;
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+}
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+
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--- gdb-6.3/gdb/testsuite/gdb.arch/ia64-sigtramp.exp.fix 2005-07-25 16:42:50.000000000 -0400
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+++ gdb-6.3/gdb/testsuite/gdb.arch/ia64-sigtramp.exp 2005-07-25 16:42:01.000000000 -0400
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@@ -0,0 +1,66 @@
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+# Copyright 2005 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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e1bcf9b |
+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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e1bcf9b |
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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e1bcf9b |
+# Please email any bugs, comments, and/or additions to this file to:
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+# bug-gdb@prep.ai.mit.edu
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+
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+# This file was written by Jeff Johnston (jjohnstn@redhat.com)
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+
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+if $tracelevel then {
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+ strace $tracelevel
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+}
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+
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e1bcf9b |
+#
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+# test running programs
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+#
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+set prms_id 0
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+set bug_id 0
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+
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+if ![istarget "ia64-*-*"] then {
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+ return
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+}
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+
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+set testfile "ia64-sigtramp"
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+set srcfile ${testfile}.c
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+set binfile ${objdir}/${subdir}/${testfile}
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+
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+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
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+ gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
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e1bcf9b |
+}
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e1bcf9b |
+
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+if [get_compiler_info ${binfile}] {
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+ return -1
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e1bcf9b |
+}
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e1bcf9b |
+
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e1bcf9b |
+gdb_exit
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e1bcf9b |
+gdb_start
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e1bcf9b |
+gdb_reinitialize_dir $srcdir/$subdir
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e1bcf9b |
+gdb_load ${binfile}
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+
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+if ![runto_main] then {
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+ fail "Can't run to main"
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+ return 0
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e1bcf9b |
+}
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e1bcf9b |
+
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e1bcf9b |
+gdb_test "handle SIGSEGV" "SIGSEGV.*Yes.*Yes.*Yes.*Segmentation fault"
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e1bcf9b |
+gdb_test "next" "" "first next"
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e1bcf9b |
+gdb_test "next" "Program received signal SIGSEGV.*" "getting SIGSEGV"
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e1bcf9b |
+gdb_breakpoint "x"
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e1bcf9b |
+gdb_test "continue" "Breakpoint.*x.*" "continue to x"
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e1bcf9b |
+
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e1bcf9b |
+gdb_test "f 1" ".*signal handler called.*" "frame 1"
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e1bcf9b |
+gdb_test "info frame" "Stack level 1.*p63 at .*" "info sigtramp frame"
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e1bcf9b |
+
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e1bcf9b |
--- gdb-6.3/gdb/libunwind-frame.c.fix 2005-07-25 16:41:30.000000000 -0400
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e1bcf9b |
+++ gdb-6.3/gdb/libunwind-frame.c 2005-07-25 16:46:23.000000000 -0400
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e1bcf9b |
@@ -303,8 +303,9 @@ libunwind_frame_prev_register (struct fr
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e1bcf9b |
modification to support unwinding through a sigaltstack. */
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e1bcf9b |
if (uw_regnum == INT_MAX)
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e1bcf9b |
{
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e1bcf9b |
- store_unsigned_integer (valuep, sizeof (CORE_ADDR),
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e1bcf9b |
- (CORE_ADDR)&cache->cursor);
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+ if (valuep)
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e1bcf9b |
+ store_unsigned_integer (valuep, sizeof (CORE_ADDR),
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e1bcf9b |
+ (CORE_ADDR)&cache->cursor);
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e1bcf9b |
return;
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e1bcf9b |
}
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e1bcf9b |
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