Re: How to configure gdb on arm-linux (for CDB89712)

[Daniel Jacobowitz <drow@mvista.com>]

On Fri, Feb 07, 2003 at 11:40:40PM +1300, Dmytro Bablinyuk wrote:
> I built arm-linux and put it on the board. Also I built a cross-compiler 
> (using uclibc)

> On host:
> 
> [Dmytro@sardine Dmytro]$ arm-gdb -nw
> $ARM_ROOT/ramdisk/target/armdevelop/hello
> GNU gdb 5.2.1
> Copyright 2002 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 "--host=i686-pc-linux-gnu
> --target=arm-linux"...
> (gdb) target remote 172.25.193.23:1023
> Remote debugging using 172.25.193.23:1023
> 0x00008110 in _start ()
> (gdb) b main
> Breakpoint 1 at 0x8158: file hello.c, line 4.
> (gdb) c
> Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0x00008114 in _start ()
> (gdb)
> 
> 
> On target(CDB89712)
> 
> # gdbserver 172.25.140.19:1023 /armdevelop/hello
> Process /armdevelop/hello created; pid = 196
> Remote debugging from host 172.25.140.19
> hello(135): undefined instruction: pc=00008114
> Code: e91ba800 e3a0b000 (e7ffdefe) e1a0100d e0812100
> Killing inferior
> #

This is a known problem between GDB 5.3 and uclibc: uclibc doesn't
leave the identifying marks that GDB uses to figure out that something
is a "Linux" binary rather than a "generic ELF" binary.  Try a CVS
snapshot of GDB and I bet it'll work.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer