[maemo-developers] Can't debug an application under FREMANTLE_ARMEL target in Scratchbox

[From: Burka Victor]

Hello,

I'm trying to debug very simple application under FREMANTLE_ARMEL target and can't do that. What I got is the following:

1. The application:

#include <iostream>
using namespace std;

int main(int argc, char * argv[])
{
        cout << "Hello 1" << endl;
        return 0;
}

2. The build command:

[sbox-FREMANTLE_ARMEL: ~/Projects/simple] > g++ -Wall -g -o simple main.cpp

3. The debug command. I tried both :

3.1.

[sbox-FREMANTLE_ARMEL: ~/Projects/simple] > gdb simple
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-none-linux-gnueabi"...
(gdb) break main.cpp:6
Breakpoint 1 at 0x885c: file main.cpp, line 6.
(gdb) run
Starting program: /home/victor/Projects/simple/simple
Don't know how to run.  Try "help target".
(gdb)

3.2.

[sbox-FREMANTLE_ARMEL: ~/Projects/simple] > native-gdb simple
GNU gdb (GDB) 6.8.50.20090417-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "arm-linux-gnueabi".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
(gdb) break main.cpp:6
Breakpoint 1 at 0x885c: file main.cpp, line 6.
(gdb) run
Starting program: /home/victor/Projects/simple/simple
qemu: Unsupported syscall: 26
Hello 1
/home/bifh6/fremantle-arm-prereleased.cs2007q3/work/gdb-6.8.50.20090417/gdb/linux-nat.c:2973: internal-error: linux_nat_wait: Assertion `status == 0' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)

-----

So everything works fine under FREMANTLE_X86 target if I type "native-gdb simple"  but I want to understand why it doesn't work on FREMANTLE_ARMEL.

I also tried some simple Qt application on FREMANTLE_ARMEL. I run it and the debugger accepted the "break main.cpp:5" command but didn't stop there despite this is the first line of application in main function. The same application stopped in that line under FREMANTLE_X86

If anybody knows how to solve that problem, I would appreciate that.

Regards,
Victor