shared library debugging issue - please help

shared library debugging issue - please help

[Pobereznicenco Stefan]

Hey,

I'm trying to debug a shared library.
I set a breakpoint like this:

(gdb) break LoginSM.cpp:153
Breakpoint 7 at 0x2cf652f: file LoginSM.cpp, line 153.

(I see that the breakpoint was set correctly!!!!!)

This file (LoginSM.cpp) is part of the shared library.

But, when the breakpoint is hit, gdb displays this:

Breakpoint 1, 0xAADDRESS in LoginSM::Next () at
/usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/new:93

LoginSM::Next() is the function inside it I set the breakpoint, ...
but why gdb tells me about 'new' file? I didn't set a breakpoint in
the header file of operator 'new' ...

Because of this, I cannot step into my shared library ... :(

Well, if I set a breakpoint in another file, the result is the same:
the debugger stops at line 93 from 'new' file ....

Could anyone help me?

Thanks,
Stefan

Fwd: shared library debugging issue - please help

[Pobereznicenco Stefan]

---------- Forwarded message ----------
From: Pobereznicenco Stefan <pobere@gmail.com>
Date: Jun 15, 2007 12:03 PM
Subject: shared library debugging issue - please help
To: gdb@sourceware.org


Hey,

I'm trying to debug a shared library.
I set a breakpoint like this:

(gdb) break LoginSM.cpp:153
Breakpoint 7 at 0x2cf652f: file LoginSM.cpp, line 153.

(I see that the breakpoint was set correctly!!!!!)

This file (LoginSM.cpp) is part of the shared library.

But, when the breakpoint is hit, gdb displays this:

Breakpoint 1, 0xAADDRESS in LoginSM::Next () at
/usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/new:93

LoginSM::Next() is the function inside it I set the breakpoint, ...
but why gdb tells me about 'new' file? I didn't set a breakpoint in
the header file of operator 'new' ...

Because of this, I cannot step into my shared library ... :(

Well, if I set a breakpoint in another file, the result is the same:
the debugger stops at line 93 from 'new' file ....

Could anyone help me?

Thanks,
Stefan




well, I want to add something. If I set a breakpoint to a function, like this:
(gdb) break libmain.cpp:functionNameFromSharedLibrary
Breakpoint 7 at 0x4772c8: file
/usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/new,
line 93.

the breakpoint is set in "new" file !!!!!!

Re: shared library debugging issue - please help

[Daniel Jacobowitz]

On Fri, Jun 15, 2007 at 12:03:41PM +0300, Pobereznicenco Stefan wrote:
> 
> Breakpoint 1, 0xAADDRESS in LoginSM::Next () at
> /usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/new:93
> 
> LoginSM::Next() is the function inside it I set the breakpoint, ...
> but why gdb tells me about 'new' file? I didn't set a breakpoint in
> the header file of operator 'new' ...
> 
> Because of this, I cannot step into my shared library ... :(

Just single step a bit from there, or compile without optimization.
GDB does not support inlined functions yet; a call to new has been
inlined into your code.

-- 
Daniel Jacobowitz
CodeSourcery

Re: shared library debugging issue - please help

[Pobereznicenco Stefan]

On 6/15/07, Daniel Jacobowitz <drow@false.org> wrote:
> On Fri, Jun 15, 2007 at 12:03:41PM +0300, Pobereznicenco Stefan wrote:
> >
> > Breakpoint 1, 0xAADDRESS in LoginSM::Next () at
> > /usr/lib/gcc/i386-redhat-linux/4.1.1/../../../../include/c++/4.1.1/new:93
> >
> > LoginSM::Next() is the function inside it I set the breakpoint, ...
> > but why gdb tells me about 'new' file? I didn't set a breakpoint in
> > the header file of operator 'new' ...
> >
> > Because of this, I cannot step into my shared library ... :(
>
> Just single step a bit from there, or compile without optimization.
> GDB does not support inlined functions yet; a call to new has been
> inlined into your code.
>
> --
> Daniel Jacobowitz
> CodeSourcery
>

Thanks.
Tried that, and seems to have the same problem.
I recompiled all the code the code with -O0 and -ggdb3. Still nothing.
Anyway, tried also to step a few times in my shared library: the
debugger points to the same point: file "new" line 93!!! Line dows not
change at all. Even more, line 93 contains a comment.

Any other idea?

Thanks,
Stefan.