Re: wacked out stepping and watch info, C++

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Article #2399

#2399

From: Tauno Voipio
Date: Thu, 28 Mar 2002 12:14

32 lines
2582 bytes

"isaac" <isaacjunk@hotmail.com> wrote in message
news:8c3264f8.0203272258.1d790558@posting.google.com...
> I have a small program in C++.  When I try to run it in GDB, it seems
> to step through the program OK, but it sometimes shows me the wrong
> location in the source files.  Also, it cannot show me variables that
> I know must be visible ( like argc when I'm in main() ).
>
> I'm running gdb 4.14 + gcc 2.95.2 on Solaris 2.7.
>
> The project has just two small source files: Vector.cc and
> extendGeneModels.cc ( + .h files ).  I'm compiling with these options:
> (note I'm using mysql )
> gcc -g -I/usr/common/usg/gnu/include -DUSE_MYSQL
> -I/opt/local/mysql/include  -I/usr/include extendGeneModels.cc
> Vector.cc -o extendGeneModels -lnsl -lm -ldl -lsocket
> -L/usr/common/usg/gnu/lib -lgdbm -lpthread -L/usr/openwin/lib -lX11
> -L/opt/local/mysql/lib -lmysqlclient
>
> Note that these options worked fine with gdb on all previous c
> programs ( dozens of large ones ) written on this platform: this is my
> first attempt to use C++ and gdb on this platform.  Any ideas?
>
> Isaac

Please re-compile without optimisation, the optimiser re-organises often the
program flow in peculiar ways.

HTH

Tauno Voipio
tauno voipio @ iki fi

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