Re: SIGTRAP error

[Rohit Agarwal <rohitrules@gmail.com>]

Thanks a lot Daniel,
that worked.
so finally, i did 

./configure --prefix=/opt/arm-gdb --target=arm-elf --host=i686-pc-linux-gnu
make
make install

it got installed in /opt/arm-gdb

when i invoked gdb from /opt/arm-gdb/bin/arm-elf-gdb i got the folowing result

[root@mahesh bin]# ./arm-elf-gdb -nw
/opt/ecos/ecos/ecoswork/install/tests/kernel/current/tests/bin_sem0
GNU gdb 6.3
Copyright 2004 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-elf"...
(gdb) set endian big
The target is assumed to be big endian
(gdb) set remotebaud 115200
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
0x50012954 in ?? ()
(gdb) load
Loading section .rom_vectors, size 0x40 lma 0x80000
Memory access error while loading section .rom_vectors.
(gdb)

However if i run arm-elf-gdb version 5.3, atleast the load is
complete, although for executing, i get the same problem.

[root@mahesh ecoswork]# arm-elf-gdb -nw
install/tests/kernel/current/tests/bin_sem0
GNU gdb 5.3 (eCosCentric)
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-elf"...
(gdb) set endian big
The target is assumed to be big endian
(gdb) set remotebaud 115200
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
0x50012954 in ?? ()
(gdb) load
Loading section .rom_vectors, size 0x40 lma 0x80000
Loading section .text, size 0x6d48 lma 0x80040
Loading section .rodata, size 0x420 lma 0x86d88
Loading section .data, size 0x354 lma 0x871a8
Start address 0x80040, load size 29948
Transfer rate: 79861 bits/sec, 299 bytes/write.
(gdb) continue
Continuing.
 
Program received signal SIGTRAP, Trace/breakpoint trap.
0x00080044 in warm_reset ()
(gdb)

Can anyone suggest what the error is?
ROHIT


On 6/28/05, Daniel Jacobowitz <drow@false.org> wrote:
> On Tue, Jun 28, 2005 at 11:53:57AM +0530, Rohit Agarwal wrote:
> > hi
> > i got the source for gdb-6.3. applied the patch
> > "gdb-6.3-load-remote-target-bug.patch".
> > next i configured gdb by typing "./configure --prefix=/opt/arm-gdb
> > --target=arm-elf --host=i686-pc-linux-gnu" which completed without any
> > errors.
> > when i do a make, this is what i get..
> > 
> > Configuring in libiberty
> > configure: loading cache ./config.cache
> > configure: error: `target_alias' has changed since the previous run:
> > configure:   former value:  i686-pc-linux-gnu
> > configure:   current value: arm-elf
> > configure: error: changes in the environment can compromise the build
> > configure: error: run `make distclean' and/or `rm ./config.cache' and
> > start overmake: *** [configure-libiberty] Error 1
> > 
> > how can i fix this? make distclean and rm ./config.cache doesn't help.
> > on redoing make, i get the same error..
> 
> Start from an empty directory.
> 
> -- 
> Daniel Jacobowitz
> CodeSourcery, LLC
> 


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