bash:

$ LD_PRELOAD=

or

% export LD_PRELOAD=

% run your program

after checking the report, reset LD_PRELOAD.

% export LD_PRELOAD=

output:

$ cat mem_trace.out [0xb7ff72ed] malloc 5 byte(s) lost. [0xb7f01000] strdup [0x8048406] func (test.c:7) [0x8048432] main (test.c:24) [0xb7ea0685] libc_start_main

addr2line doesn't exist:

• To examine caller address

Linux:

$ ./tp malloc: using trace hooks..ok free: using trace hooks..ok caller addr: 0x8048411

$ gdb ./tp ... (gdb) dissassemble 0x8048411 Dump of assembler code for function main: 0x080483f4 <main+0>: lea 0x4(%esp),%ecx 0x080483f8 <main+4>: and $0xfffffff0,%esp 0x080483fb <main+7>: pushl -0x4(%ecx) 0x080483fe <main+10>: push %ebp 0x080483ff <main+11>: mov %esp,%ebp 0x08048401 <main+13>: push %ecx 0x08048402 <main+14>: sub $0x14,%esp 0x08048405 <main+17>: movl $0x20,(%esp) 0x0804840c <main+24>: call 0x804832c malloc@plt <--- HERE! 0x08048411 <main+29>: mov %eax,-0x8(%ebp) <--- mem_trace.so report ...

SunOS:

$ LD_PRELOAD=./mem_trace.so ./tp malloc: using trace hooks..ok free: using trace hooks..ok caller addr: 0x10698

% gdb ./tp ... (gdb) disass main Dump of assembler code for function main: 0x00010688 <main+0>: save %sp, -120, %sp 0x0001068c <main+4>: st %i0, [ %fp + 0x44 ] 0x00010690 <main+8>: st %i1, [ %fp + 0x48 ] 0x00010694 <main+12>: mov 0x20, %o0 0x00010698 <main+16>: call 0x20808 malloc@plt <--- mem_trace.so report ...