Re: Unable to find dynamic linker breakpoint function.

Hareesh Nagarajan
2005-02-25T21:00:56Z

Kris Warkentin wrote:
> Looks like it has nothing to do with your special libs. I just tried to
> reproduce your problem and got this:

Yeah it looks like it has nothing to do with the libs such as libstdc++.
Below I've written a simple program called 'new2.cc'

<new2.cc>

#include <iostream>
using namespace std;

class X
{
int xx;
public:
X(int _xx) {xx = _xx;}
void display(void) { cout << xx; };
};

int main(void)
{
X xobj(2);
xobj.display(); // Line 15
}

</new2.cc>

I compiled it as follows: g++ new2.cc -onew2 -g

When I break it on line 15, I get the same problem as PR1766
http://sources.redhat.com/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=1766&return_url=http%3A%2F%2Fsources.redhat.com%2Fcgi-bin%2Fgnatsweb.pl%3Fdatabase%3Dgdb%26category%3Dc%252B%252B%26severity%3Dall%26priority%3Dall%26responsible%3Dall%26submitter_id%3Dall%26state%3Dall%26ignoreclosed%3DIgnore%2520Closed%26class%3Dall%26synopsis%3D%26multitext%3D%26columns%3Dcategory%26columns%3Dstate%26columns%3Dclass%26columns%3Dresponsible%26columns%3Dsynopsis%26displaydate%3DDisplay%2520Current%2520Date%26cmd%3Dsubmit%2520query%26sortby%3DResponsible%26.cgifields%3Ddisplaydate%26.cgifields%3Dignoreclosed%26.cgifields%3Doriginatedbyme%26.cgifields%3Dcolumns

<error>
(gdb) b 15
Breakpoint 1 at 0x8048654: file new2.cc, line 15.
(gdb) r
Starting program: /home/hareesh/new2
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.

Breakpoint 1, main () at new2.cc:15
15 X xobj(2);
(gdb) n
16 xobj.display();
(gdb) inspect xobj.display()

Breakpoint 1, main () at new2.cc:15
15 X xobj(2);
The program being debugged stopped while in a function called from GDB.
When the function (X::display()) is done executing, GDB will silently
stop (instead of continuing to evaluate the expression containing
the function call).
</error>

My question is, how come GDB doesn't stop on other boxes when I inspect
a member function and it stops on mine :( ?

Thanks,

Hareesh