Re: [arm-gnu] SIGILL received when debugging thumb code

[Carlos O'Donell <carlos@xxxxxxxxxxxxxxxx>]

On Tue, Mar 06, 2007 at 12:06:38AM +0800, ?????? wrote:
>    Dear all,
> 
>    I am trying to compile and debug on a Cortex-A8 board and encounter a
>    strange problem. Could anyone help me if you happen to know the solution?
>    Thank you in advance.
> 
>    Linux Kernel: 2.6.17
>    Development Tool: Release 2006q3-26
> 
>    Problem Description:
> 
>    I used a "helloworld" C program to test the compiling and debugging
>    capabilities of this release. We compiled the code with both ARM and THUMB
>    mode and they worked fine on the board. But when we tried to debug the
>    code compiled with THUMB mode (using gdb and gdbserver provided in the
>    package), I got the error message "Program received signal SIGILL, Illegal
>    instruction." The problem occured even before main(). And the ARM code
>    didn't have this problem.
> 
>    The compile options we used for the code is:
>    arm-none-linux-gnueabi-gcc -mcpu=cortex-a8 -mthumb -o hello hello.c
> 
>    Any suggestions would be appreciated. Thank you very much in advance.

Could you please provide the output of:

1. From the host side "bin/arm-none-linux-gnueabi-gdb -v"
2. From the target side "gdbsever -v"
3. From the target side "gdb -v"

Thanks!

Cheers,
Carlos.
-- 
Carlos O'Donell
CodeSourcery
carlos@xxxxxxxxxxxxxxxx
(650) 331-3385 x716