I am attempting to use mtrace to do some memory leak detection but am unable to get it to resolve addresses to file names with line numbers. I have been working at this for at least 2 days now and am out of ideas. I hope someone at this forum may be able to offer some assistance.
I have created a very simple c++ file to test with:
Code:
linuxcom-04> cat leak.cc
#include <mcheck.h>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
mtrace();
cout << "hello world" << endl;
char* str = new char[20];
}
I have set the environment variable:
Code:
linuxcom-04> echo $MALLOC_TRACE
leak.out
And compiled with debugging:
Code:
linuxcom-04> g++ -g leak.cc
linuxcom-04> ls
a.out leak.cc
Ran the program once and got the mtrace output file
Code:
linuxcom-04> ./a.out
hello world
linuxcom-04> ls
a.out leak.cc leak.out
Ran mtrace with the executable name and the log file
Code:
linuxcom-04> mtrace a.out leak.out
Memory not freed:
-----------------
Address Size Caller
0x0949a378 0x14 at 0x92b86e
and only got the address of the caller. I believe mtrace uses addr2line so I figured I would attempt using that directly, but it was no help:
Code:
linuxcom-04> addr2line -e a.out 0x92b86e
??:0
linuxcom-04> addr2line --version
GNU addr2line 2.17.50.0.3 20060715
linuxcom-04> mtrace --version
mtrace (GNU libc) 2.3.2
I have tried on both ppc and i386-linux systems with different executables. I have updated binutils. I've done a mess of other little things trying to find out what the problem could possibly be.
I really hope someone here will be able to offer some assistance and end my suffering.
Thank you for your time,
-Jesse Harvey
