No line number info on GDB 7.0 using remote stub.

higepon higepon@gmail.com
Wed Dec 23 13:39:00 GMT 2009


Hi.
I'm trying remote debug using i386-stub.c on my OS.
GDB stub seems to work for remote debug, but it doesn't show souce
code line number.
Will you please teach me why it doesn't or how to know what is wrong with it?

[1] GDB I use.
- gdb-7.0
- ./configure --prefix=~/tmp/ --target=i586-mingw32msvc

[2] commands I issued
% ~/tmp/bin/i586-mingw32msvc-gdb test/monapi/mutex/TMUTEX.EXE
(gdb) target remote localhost:43770
Remote debugging using localhost:43770
Ignoring packet error, continuing...
warning: unrecognized item "timeout" in "qSupported" response
0xa00013bc in testClassMutex() ()

The pc(eip) address 0xa00013bc is correct, but without souce code line number.

[3] things I tried
- compile with -g flag
- maint print symbols symbols.txt /home/taro/mona/test/monapi/mutex/mutex.cpp
  -- symbols.txt is empty.
- check source code information with objdjump
  -- objdump shows correct source line number as follows.

% /usr/bin/i586-mingw32msvc-objdump -lS test/monapi/mutex/TMUTEX.EXE|less
...

void testClassMutex()
{
    mutex = new Mutex();
a00013b6:       89 1d 08 40 00 a0       mov    %ebx,0xa0004008
/home/taro/mona/test/monapi/mutex/mutex.cpp:132
    ASSERT_TRUE(mutex != NULL);

    uintptr_t* p = (uintptr_t*)0;
    *p = 1;
a00013bc:       c7 05 00 00 00 00 01    movl   $0x1,0x0
a00013c3:       00 00 00
/home/taro/mona/test/monapi/mutex/mutex.cpp:129
}

...

If I did something wrong, I appreciate your pointing me out.
Cheers.
---
Taro Minowa(Higepon)

http://www.monaos.org/
http://code.google.com/p/mosh-scheme/



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