I am using GDB for debugging a Linux kernel module. After loading the module, i use
to add module symbols.
When i use list command in GDB to find a symbol in module, it will find it for example:
Code:
(gdb) list __do_restart
122 * would provide type of error or success. In the case of early restart support from
123 * cr_mods a signal will be posted at appropriate time.
124 *
125 * NOTE: This type of restarting could be used for migrating parallel processes.
126 */
127 int __do_restart(void *data){
128 struct siginfo info;
129 struct object_stored_data *sd;
130 struct crmod_clients *clt = get_client(data);
131 memset(&info, 0, sizeof(struct siginfo));
(gdb) b __do_restart
Breakpoint 1 at 0xe081740e: file /home/amrzar/Workspace/common/commod.c, line 130.
I can even set a breakpoint for it. But after the first interrupt in execution when i use
it says:
Code:
(gdb) list __do_restart
No line number known for __do_restart
It simply lost symbols! Why? (I am sure about presence of debugging information in object file) Thanks
