Running cppcheck against hotspot sources found a memory leak:

[SOURCE:LINE] ERROR DETAIL
[./agent/src/os/linux/symtab.c:218]: (error) Memory leak: debug_pathname

We neglect to free debug_pathname in the first case of error return:

  char *debug_pathname = malloc(strlen(debug_filename)
                                + strlen(name)
                                + strlen(".debug/")
                                + strlen(debug_file_directory)
                                + 2);
  strcpy(debug_pathname, name);
  char *last_slash = strrchr(debug_pathname, '/');
! if (last_slash == NULL) {
+ free(debug_pathname); // need to free here
    return -1;
+ }

  /* Look in the same directory as the object. */
  strcpy(last_slash+1, debug_filename);

  debug_fd = open_debug_file(debug_pathname, crc);
  if (debug_fd >= 0) {
    free(debug_pathname);
    return debug_fd;
  }
  ...