In dtrace, if you had an executable called foo and wanted to track calls to malloc and see where they happen within the code with the address returned (you could also output the free’s), the script would look like:

sudo dtrace -n 'pid$target::malloc:return {@[arg1, ustack()] = count()}' -c./foo

And one would get output like:

  34376540248
          libc.so.7`__malloc+0x1492
          foo`main+0xe
          foo`_start+0x16f
          ld-elf.so.1`0x800621000
            1
  34376540256
          libc.so.7`__malloc+0x1492
          foo`main+0x18
          foo`_start+0x16f
          ld-elf.so.1`0x800621000
            1
  34376540264
          libc.so.7`__malloc+0x1492
          foo`bar+0x20
          foo`main+0x18
          foo`_start+0x16f
          ld-elf.so.1`0x800621000
            1