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.
With -gstabs, I get the definition, so this is user viewable regression. Also on 2.95.3 with - gdwarf-2 I get the variable printed so this is true regression. I do not get the variable printed in the mainline (20030705).
Subject: Bug 11098 CVSROOT: /cvs/gcc Module name: gcc Changes by: mmitchel@gcc.gnu.org 2003-07-15 01:04:21 Modified files: gcc : ChangeLog integrate.c Log message: PR debug/11098 * integrate.c (copy_decl_for_inlining): Do not mark copied decls as DECL_ABSTRACT. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.502&r2=2.503 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/integrate.c.diff?cvsroot=gcc&r1=1.230&r2=1.231
Subject: Bug 11098 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_3-branch Changes by: mmitchel@gcc.gnu.org 2003-07-15 01:05:45 Modified files: gcc : ChangeLog integrate.c Log message: PR debug/11098 * integrate.c (copy_decl_for_inlining): Do not mark copied decls as DECL_ABSTRACT. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.656&r2=1.16114.2.657 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/integrate.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.206.2.3&r2=1.206.2.4
Fixed in GCC 3.3.1 and GCC 3.4.
*** Bug 10156 has been marked as a duplicate of this bug. ***
*** Bug 8542 has been marked as a duplicate of this bug. ***