commit d54f5671e190a5c0ca8fd1ff070372bf20eb42a8
Author: cmoller <cmoller>
Date: Wed Apr 21 17:33:51 2010 +0000
PR 9167
* cp-valprint.c (cp_print_value_fields): Replaced obstack_base()
method of popping recursion-detection stack with a method based on
obstack_object_size().
* gdb.cp/Makefile.in (EXECUTABLES): Added pr9167.
* gdb.cp/pr9167.cc: New file.
* gdb.cp/pr9167.exp: New file.
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,3 +1,10 @@
+2010-04-21 Chris Moller <cmoller@redhat.com>
+
+ PR 9167
+ * cp-valprint.c (cp_print_value_fields): Replaced obstack_base()
+ method of popping recursion-detection stack with a method based on
+ obstack_object_size().
+
2010-04-21 Pierre Muller <muller@ics.u-strasbg.fr>
PR pascal/11492.
## -3184,7 +3191,7 @@
addr_bit. Adjust LOAD_ADDR sign for cross-arch inferiors.
2010-02-17 Tristan Gingold <gingold@adacore.com>
- Petr HluzĂn <petr.hluzin@gmail.com>
+ Petr Hluzín <petr.hluzin@gmail.com>
* avr-tdep.c (avr_scan_prologue): Convert an if statement to a
gdb_assert. Fix info->size for SIG prologue.
Index: gdb-7.1/gdb/cp-valprint.c
===================================================================
--- gdb-7.1.orig/gdb/cp-valprint.c 2010-06-28 20:21:53.000000000 +0200
+++ gdb-7.1/gdb/cp-valprint.c 2010-06-28 20:22:16.000000000 +0200
@@ -186,14 +186,13 @@ cp_print_value_fields (struct type *type
fprintf_filtered (stream, "<No data fields>");
else
{
- void *statmem_obstack_top = NULL;
+ int obstack_initial_size = 0;
void *stat_array_obstack_top = NULL;
if (dont_print_statmem == 0)
{
- /* Set the current printed-statics stack top. */
- statmem_obstack_top
- = obstack_next_free (&dont_print_statmem_obstack);
+ obstack_initial_size =
+ obstack_object_size (&dont_print_statmem_obstack);
if (last_set_recurse != recurse)
{
@@ -321,8 +320,19 @@ cp_print_value_fields (struct type *type
if (dont_print_statmem == 0)
{
- if (obstack_object_size (&dont_print_statmem_obstack) > 0)
- obstack_free (&dont_print_statmem_obstack, statmem_obstack_top);
+ int obstack_final_size =
+ obstack_object_size (&dont_print_statmem_obstack);
+
+ if (obstack_final_size > obstack_initial_size) {
+ /* In effect, a pop of the printed-statics stack. */
+
+ void *free_to_ptr =
+ obstack_next_free (&dont_print_statmem_obstack) -
+ (obstack_final_size - obstack_initial_size);
+
+ obstack_free (&dont_print_statmem_obstack,
+ free_to_ptr);
+ }
if (last_set_recurse != recurse)
{
@@ -555,7 +565,6 @@ cp_print_static_field (struct type *type
addr = value_address (val);
obstack_grow (&dont_print_statmem_obstack, (char *) &addr,
sizeof (CORE_ADDR));
-
CHECK_TYPEDEF (type);
cp_print_value_fields (type, value_enclosing_type (val),
value_contents_all (val),
Index: gdb-7.1/gdb/testsuite/gdb.cp/pr9167.cc
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ gdb-7.1/gdb/testsuite/gdb.cp/pr9167.cc 2010-06-28 20:22:16.000000000 +0200
@@ -0,0 +1,36 @@
+#include <iostream>
+
+template<typename DATA>
+struct ATB
+{
+ int data;
+ ATB() : data(0) {}
+};
+
+
+template<typename DATA,
+ typename DerivedType >
+class A : public ATB<DATA>
+{
+public:
+ static DerivedType const DEFAULT_INSTANCE;
+};
+
+template<typename DATA, typename DerivedType>
+const DerivedType A<DATA, DerivedType>::DEFAULT_INSTANCE;
+
+class B : public A<int, B>
+{
+
+};
+
+int main()
+{
+ B b;
+ // If this if-block is removed then GDB shall
+ // not infinitely recurse when trying to print b.
+
+ return 0; // marker
+}
+
+
Index: gdb-7.1/gdb/testsuite/gdb.cp/pr9167.exp
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ gdb-7.1/gdb/testsuite/gdb.cp/pr9167.exp 2010-06-28 20:22:16.000000000 +0200
@@ -0,0 +1,31 @@
+#Copyright 2010 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+set testfile pr9167
+set srcfile ${testfile}.cc
+if [prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}] {
+ return -1
+}
+
+if ![runto_main] then {
+ fail "Can't run to main"
+ return
+}
+
+gdb_breakpoint [gdb_get_line_number "marker"]
+gdb_continue_to_breakpoint "marker"
+
+gdb_test "p b" "{<A<int, B>> = {<ATB<int>> = {data = 0}, static DEFAULT_INSTANCE = <optimized out>}, <No data fields>}"
+