[patch] New testcase for GCC false C++ references

[patch] New testcase for GCC false C++ references

[Jan Kratochvil]

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Hi,

It tests GCC compiled right (and GDB decoded right)
	int foo (Obj arg);
formerly false debuginfo encoded as:
	int foo (Obj &arg);
Submitted at:
	http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33537

Still GDB wrongly does not create a copy and modified the ARG value durin
	(gdb) p foo(obj)


Regards,
Jan

[-- Attachment #2: arg-referefence.patch --]
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2007-11-01  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.cp/arg-reference.exp, gdb.cp/arg-reference.c: New files.

--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ ./gdb/testsuite/gdb.cp/arg-reference.cc	1 Nov 2007 17:10:40 -0000
@@ -0,0 +1,49 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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 Obj
+{
+public:
+  Obj ();
+  Obj (const Obj &);
+  ~Obj ();
+  int var;
+};
+
+int foo (Obj arg)
+{
+  arg.var++;
+  return arg.var;
+}
+
+int main()
+{
+  Obj obj;
+
+  return 0;	/* initialized */
+}
+
+Obj::Obj ()
+{
+  var = 1;
+}
+
+Obj::~Obj ()
+{
+}
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ ./gdb/testsuite/gdb.cp/arg-reference.exp	1 Nov 2007 17:10:40 -0000
@@ -0,0 +1,47 @@
+# Copyright (C) 2007 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/>.
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@gnu.org
+
+# This file is part of the gdb testsuite.
+
+# Test G++ has compiled debuginfo without a C++ '&' reference where it should
+# not be.  GCC Bug 33537.
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+if { [skip_cplus_tests] } { continue }
+
+set prms_id 0
+set bug_id 0
+
+set testfile "arg-reference"
+set srcfile ${testfile}.cc
+set binfile ${objdir}/${subdir}/${testfile}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
+    untested ${testfile}.exp
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_test "ptype foo" "type = int \\\(Obj\\\)" "No false reference"

Re: [patch] New testcase for GCC false C++ references

[Daniel Jacobowitz]

On Thu, Nov 01, 2007 at 06:14:42PM +0100, Jan Kratochvil wrote:
> 2007-11-01  Jan Kratochvil  <jan.kratochvil@redhat.com>
> 
> 	* gdb.cp/arg-reference.exp, gdb.cp/arg-reference.c: New files.

OK, thanks.

-- 
Daniel Jacobowitz
CodeSourcery