Re: Hel debugging windows app with wine(dbg) + gdb

Leo Sat, 31 Jan 2004 02:32:35 -0800

Eric Pouech wrote:

Hello, thanks for your reply.

Do you successfully debug windows apps with wine + gdb ?
yes

Great! Please don't go! :)

I've tried setting that env variable, but it's even worse in method 1 bellow.

I'm pasting the xterm outputs for my attempts:
there are several unrelated errors/issues you need to fix first.
METHOD 1:
==========
==First xterm:
err:wineconsole:WINECON_Fatal Couldn't find a decent font, aborting
that's the first issue. Your a.exe app is a CUI app. You first need to set wineconsole to make it work (basically it doesn't find a fixed font with decent size). It's been a while since we hadn't gotten this error... and the rest of the debugging session fails because your debuggee needs the console up & running (and dies prematurely) this should work ok even without the --no-start flag

Ok, that's fixed (no console problem), but then another error happens (see the log bellow).

METHOD 2:
==========
gdb a.exe
gdb doesn't know nothing about windows application. You should run it with gdb wine-pthread (as I assume your system is -pthread)

Yes, I tried that too (gdb wine, and gdb wine-pthread), but I don't get debug info for my program (just the wine exec).

However, if your a.exe has been compiled with a win32 compiler, you won't get any symbol from it (except if the compiler is mingw)

Yes, my compiler is mingw, and I've tried -gstabs and -ggdb debug formats.

Logs with the WINECONSOLE set:


METHOD1:
=========

== First xterm:

[EMAIL PROTECTED] 2]$ export WINECONSOLE=/usr/bin/wineconsole [EMAIL PROTECTED] 2]$ export WINELOADER=/usr/bin/wine-pthread [EMAIL PROTECTED] 2]$ winedbg -- --gdb --no-start a.exe Using wine_path: /usr/bin/wine-pthread target remote localhost:34369 0000002e:0000002f: create process 'F:\tmp\2\a.exe'/0x4063003c @00401000 (0<0>) 0000002e:0000002f: create thread I @00401000 0000002e:0000002f: loads DLL C:\WINDOWS\SYSTEM\ntdll.dll @400a0000 (0<0>) 0000002e:0000002f: loads DLL C:\WINDOWS\SYSTEM\kernel32.dll @40330000 (0<0>) 0000002e:0000002f: loads DLL C:\WINDOWS\SYSTEM\msvcrt.dll @40860000 (0<0>) Unknown option '--use-event=8'

Wine 20040121

Usage: wine [options] [--] program_name [arguments]
The -- has to be used if you specify arguments (of the program)

Options:
  --debugmsg name  Turn debugging-messages on or off
  --dll name       This option is no longer supported
  --help,-h        Show this help message
  --version,-v     Display the Wine version

The program winedbg does not exit at this point, just stays there.

== Second xterm:

[EMAIL PROTECTED] 2]$ export WINELOADER=/usr/bin/wine-pthread [EMAIL PROTECTED] 2]$ export WINECONSOLE=/usr/bin/wineconsole [EMAIL PROTECTED] 2]$ gdb /usr/bin/wine-pthread GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (no debugging symbols found)... (gdb) target remote localhost:34369 Remote debugging using localhost:34369 Ignoring packet error, continuing... Ignoring packet error, continuing...

Ignoring packet error, continuing...
Couldn't establish connection to remote target
Malformed response to offset query, timeout
(gdb)
(gdb) c
The program is not being run.
(gdb) q
[EMAIL PROTECTED] 2]$


METHOD 2:
==========

== First xterm:

[EMAIL PROTECTED] 2]$ export WINECONSOLE=/usr/bin/wineconsole [EMAIL PROTECTED] 2]$ export WINELOADER=/usr/bin/wine-pthread [EMAIL PROTECTED] 2]$ /usr/bin/wine-pthread ./a.exe & [1] 2573 [EMAIL PROTECTED] 2]$

==Second xterm:

[EMAIL PROTECTED] 2]$ export WINECONSOLE=/usr/bin/wineconsole [EMAIL PROTECTED] 2]$ export WINELOADER=/usr/bin/wine-pthread [EMAIL PROTECTED] 2]$ gdb wine-pthread GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (no debugging symbols found)... (gdb) attach 2573 Attaching to program: /usr/bin/wine-pthread, process 2573 Reading symbols from /usr/lib/wine/libwine.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/wine/libwine.so.1 Reading symbols from /lib/tls/libpthread.so.0...(no debugging symbols found)... done. [New Thread 1074271616 (LWP 2573)] Loaded symbols for /lib/tls/libpthread.so.0 Reading symbols from /lib/tls/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/libc.so.6 Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libdl.so.2 Reading symbols from /lib/tls/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/libm.so.6 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /usr/lib/wine/wine/ntdll.dll.so... (no debugging symbols found)...done. Loaded symbols for /usr/lib/wine/wine/ntdll.dll.so Reading symbols from /usr/lib/wine/libwine_unicode.so.1... (no debugging symbols found)...done. Loaded symbols for /usr/lib/wine/libwine_unicode.so.1 Reading symbols from /lib/libnss_files.so.2...(no debugging symbols found)... done. Loaded symbols for /lib/libnss_files.so.2 Reading symbols from /usr/lib/wine/wine/kernel32.dll.so... (no debugging symbols found)...done. Loaded symbols for /usr/lib/wine/wine/kernel32.dll.so Reading symbols from /usr/lib/wine/wine/msvcrt.dll.so... (no debugging symbols found)...done. Loaded symbols for /usr/lib/wine/wine/msvcrt.dll.so 0xffffe002 in ?? () (gdb) c Continuing.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1074271616 (LWP 2573)]
0x0040130b in ?? ()
(gdb) bt
#0  0x0040130b in ?? ()
#1  0x00401347 in ?? ()
#2  0x00401182 in ?? ()
#3  0x00401018 in ?? ()
#4  0x4038e077 in SetThreadExecutionState ()
  from /usr/lib/wine/wine/kernel32.dll.so
(gdb)

See, in this backtrace I get debug info for the wine executable. If I run gdb ./a.exe instead of gdb /usr/bin/wine-pthread, I do get (wrong) debug info:

[EMAIL PROTECTED] 2]$ gdb ./a.exe GNU gdb Red Hat Linux (5.3post-0.20021129.18rh) Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"... (gdb) attach 2579 Attaching to program: /home/leo/tmp/2/a.exe, process 2579 0xffffe002 in ?? () (gdb) c Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x0040130b in f() () at a.cpp:11
11      {
(gdb) bt
#0  0x0040130b in f() () at a.cpp:11
#1  0x00401347 in main () at a.cpp:21
#2  0x00401182 in _image_base__ ()
#3  0x00401018 in _image_base__ ()
#4  0x4038e077 in ?? ()
(gdb)

I think method 2 seems best (I get debug info), but wrong line numbers.

What am I doing wrong?

Also, I've tried tu run the tests above with WINELOADER=/usr/bin/wine, and run wine instead of wine-pthread but same thing happens.

Thanks.

Re: Hel debugging windows app with wine(dbg) + gdb

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