From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13397 invoked by alias); 5 Jun 2003 07:27:37 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 13374 invoked by uid 48); 5 Jun 2003 07:27:36 -0000 Date: Thu, 05 Jun 2003 07:27:00 -0000 From: "mvanier@cs.caltech.edu" To: gcc-bugs@gcc.gnu.org Message-ID: <20030605072735.11098.mvanier@cs.caltech.edu> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug c++/11098] New: g++ doesn't emit complete debugging information for local variables in destructors X-Bugzilla-Reason: CC X-SW-Source: 2003-06/txt/msg00669.txt.bz2 List-Id: PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11098 Summary: g++ doesn't emit complete debugging information for local variables in destructors Product: gcc Version: 3.3 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: mvanier@cs.caltech.edu CC: gcc-bugs@gcc.gnu.org Consider this code (in the file "foo.cc"): // Begin code: class Test { private: int *data; public: Test(); ~Test(); }; Test::Test() { data = new int[1000]; } Test::~Test() { int *t = data; delete [] t; } int main() { Test s; return 0; } // End code. When I compile this with "g++ -Wall -g foo.cc -o foo" and then bring up gdb 5.3 and set a breakpoint in the destructor, this happens: [tap] gdb foo GNU gdb 5.3 Copyright 2002 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"... (gdb) break Test::~Test() Breakpoint 1 at 0x80484c6: file foo.cc, line 13. (gdb) run Starting program: /home/mvanier/tmp/cs11/foo Breakpoint 1, ~Test (this=0xbfffee30) at foo.cc:14 14 int *t = data; (gdb) p t No symbol "t" in current context. (gdb) info locals No locals. (gdb) Clearly this is wrong, as "t" is a local variable in the destructor. I sent in a bug report to the gdb developers, and they say that the reason this is happening is that g++ is not outputting the correct debugging information. They tell me I should refer you to bugs debug/10156 in the gcc GNATS database and c++/1234 in the gdb GNATS database (the latter being the one I submitted). Thanks in advance for your help. ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.