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gdb 6.3 C++ breakpoint in constructor/destructor patch
- From: "Thomas Maier" <balagi at justmail dot de>
- To: gdb-patches at sources dot redhat dot com
- Date: Sun, 01 May 2005 20:32:12 +0200
- Subject: gdb 6.3 C++ breakpoint in constructor/destructor patch
Hello,
I want to supply a patch for the released gdb 6.3, that fixes partially
the gdb bugs
gdb/1091: Constructor breakpoints ignored
gdb/1193: g++ 3.3 creates multiple constructors: gdb 5.3 can't set
breakpoints
I was really confused, why my programs to not stop at the breakpoint in
constructor/destructors. Now i know, it is not the fault of my programs ;)
Since this anoying problem seems to be in gdb since the gcc 3.x release, i
guess, no one else a) has this problem (i don't believe so) or b) will not
fix it. So i did it ;)
This modification is only made for commands like "break
[source]:<lineno>". For C++ constructors and destructors, the patch
creates more than one breakpoint at the source at lineno, but each
generated breakpoint will have another address!
NOTE: this is only a simple "hack". I have spent only one day to get into
gdb source code and do the modification.
It would be better, to create only one breakpoint in such C++ constructors
and destructors and assign multiple addresses to it. But this needs a huge
modification of gdb, i guess ;)
ChangeLog:
2005-04-30 Thomas Maier <balagi@justmail.de>
* breakpoint.c linespec.c symtab.c symtab.h
Add better support for breakpoints in C++ constructors
and destructors.
NOTE: this is only a simple hack.
This modification is only made for commands like
"break [source]:<lineno>". It creates more than one
breakpoint at the source at lineno, but each
generated breakpoint will have another address!
For more information see also
http://people.freenet.de/BalaGi
I hope this patch is helpful, maybe some of you can do it into gdb or even
use it as a base for a better patch fixing 1091 and 1193 ;)
Greetings
Thomas MaierAttachment:
patch-gdb-6.3-c++-bpconstr
Description: Binary data