This is the mail archive of the
gdb-patches@sourceware.org
mailing list for the GDB project.
[patch 1/2] Fix physname regression: c/v types quals (PR c++/12328)
- From: Jan Kratochvil <jan dot kratochvil at redhat dot com>
- To: gdb-patches at sourceware dot org
- Cc: Keith Seitz <keiths at redhat dot com>
- Date: Sun, 6 Feb 2011 19:12:19 +0100
- Subject: [patch 1/2] Fix physname regression: c/v types quals (PR c++/12328)
Hi Keith,
do you agree for a check-in?
This fixes a C++ regression by the patch:
42284fdf9d8cdb20c8e833bdbdb2b56977fea525
http://sourceware.org/ml/gdb-cvs/2010-03/msg00082.html
dwarf2_physname patchset:
[RFA] dwarf2_physname FINAL
http://sourceware.org/ml/gdb-patches/2010-03/msg00220.html
No regressions on {x86_64,x86_64-m32,i686}-fedora14-linux-gnu.
Thanks,
Jan
gdb/
2011-02-06 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix const/volatile qualifiers of C++ types, PR c++/12328.
* c-typeprint.c (c_type_print_args): Update the function comment. New
variable param_type, initialize it. Remove const/volatile qualifiers
for language_cplus and !show_artificial. Use param_type.
gdb/testsuite/
2011-02-06 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix const/volatile qualifiers of C++ types, PR c++/12328.
* gdb.cp/overload-const.exp: New file.
* gdb.cp/overload-const.cc: New file.
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -388,9 +388,12 @@ c_type_print_modifier (struct type *type, struct ui_file *stream,
/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
in non-static methods, are displayed if SHOW_ARTIFICIAL is
- non-zero. LANGUAGE is the language in which TYPE was defined.
- This is a necessary evil since this code is used by the C, C++, and
- Java backends. */
+ non-zero. If SHOW_ARTIFICIAL is zero and LANGUAGE is language_cplus
+ the topmost parameter types get removed their possible const and volatile
+ qualifiers to match demangled linkage name parameters part of such function
+ type. LANGUAGE is the language in which TYPE was defined. This is
+ a necessary evil since this code is used by the C, C++, and Java backends.
+ */
void
c_type_print_args (struct type *type, struct ui_file *stream,
@@ -406,6 +409,8 @@ c_type_print_args (struct type *type, struct ui_file *stream,
for (i = 0; i < TYPE_NFIELDS (type); i++)
{
+ struct type *param_type;
+
if (TYPE_FIELD_ARTIFICIAL (type, i) && !show_artificial)
continue;
@@ -415,12 +420,24 @@ c_type_print_args (struct type *type, struct ui_file *stream,
wrap_here (" ");
}
+ param_type = TYPE_FIELD_TYPE (type, i);
+
+ if (language == language_cplus && !show_artificial)
+ {
+ /* C++ standard, 13.1 Overloadable declarations, point 3, item:
+ - Parameter declarations that differ only in the presence or
+ absence of const and/or volatile are equivalent.
+
+ And the const/volatile qualifiers are not present in the mangled
+ names as produced by GCC. */
+
+ param_type = make_cv_type (0, 0, param_type, NULL);
+ }
+
if (language == language_java)
- java_print_type (TYPE_FIELD_TYPE (type, i),
- "", stream, -1, 0);
+ java_print_type (param_type, "", stream, -1, 0);
else
- c_print_type (TYPE_FIELD_TYPE (type, i),
- "", stream, -1, 0);
+ c_print_type (param_type, "", stream, -1, 0);
printed_any = 1;
}
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/overload-const.cc
@@ -0,0 +1,28 @@
+/* This test case is part of GDB, the GNU debugger.
+
+ Copyright 2011 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/>. */
+
+class myclass
+{
+public:
+ static void func(const int aa) {}
+};
+
+int
+main ()
+{
+ myclass::func (42);
+}
--- /dev/null
+++ b/gdb/testsuite/gdb.cp/overload-const.exp
@@ -0,0 +1,29 @@
+# Copyright 2011 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/>.
+
+# This file is part of the gdb testsuite.
+
+if {[skip_cplus_tests]} { continue }
+
+set testfile "overload-const"
+if [prepare_for_testing $testfile $testfile $testfile.cc {c++ debug}] {
+ return -1
+}
+
+gdb_test_no_output "set language c++"
+
+if [gdb_breakpoint "myclass::func"] {
+ pass "setting breakpoint at myclass::func"
+}