[Kgdb-bugreport] problem with module debugging

[Chulhwan Y. <yc...@co...>]

Hi,all
I try to module debug on SMDK2410 board.(CPU:SAMSUNG S3C2410, ARM920T core, 
linux 2.6.11 port)
I used
core-lite.patch rev 1.69
arm-lite.patch rev 1.11
module.patch rev 1.6
and, I writing kgdb-serial.

I debug by gdb-6.0-kgdb-2.2 with arm-linux configure.

kernel debug work good, but module debug is some problem.
break point set and hit success, but gdb can't find source code.
so, I can asm level debug only.
please help me.

(gdb) ta re /dev/ttyS0
Remote debugging using /dev/ttyS0
0xc004b5b0 in breakpoint () at kernel/kgdb.c:1629
1629            atomic_set(&kgdb_setting_breakpoint, 1);
(gdb) set solib-search-path /home/yoon/module_test/call_dev-2  <- set lib 
path
(gdb) c
Continuing.
[New Thread 39]
[New Thread 32768]

Program received signal SIGTRAP, Trace/breakpoint trap.
0xc004b5b0 in breakpoint () at kernel/kgdb.c:1629
1629            atomic_set(&kgdb_setting_breakpoint, 1);
(gdb) b call_open      <- break point set
Breakpoint 1 at 0xbf00002c: file proc_fs.h, line 189.
(gdb) info shared
From        To          Syms Read   Shared Object Library
0xbf000000  0xbf000164  Yes 
/home/yoon/module_test/call_dev-2/call_dev.ko <- symbol load success
(gdb) c
Continuing.
[New Thread 41]
[Switching to Thread 41]

Breakpoint 1, 0xbf00002c in call_open () at proc_fs.h:189  <-break point hit
189     proc_fs.h: No such file or directory.    <- But, gdb can't find 
module source file.
        in proc_fs.h
(gdb) l                        <- so, I don't use list command
184     in proc_fs.h
(gdb) info source
Current source file is proc_fs.h
Compilation directory is include/linux
Source language is c.
Compiled with unknown debugging format.
Does not include preprocessor macro info.
(gdb) stepi                     <- I can use stepi command only, please help 
me.
0xbf000030      189     in proc_fs.h
(gdb) stepi
0xbf000034      189     in proc_fs.h
(gdb) stepi
0xbf000038      189     in proc_fs.h
(gdb)