Re: [ECOS] arm-elf-gdb Cannot access memory at address ...[IXDP425]

[Gary Thomas <gary at mlbassoc dot com>]

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On Fri, 2004-09-24 at 08:48, Antonello Lombardinilo wrote:
> Thanks for the quick answer.
> Where specify to the gdb remote debug parameters?

Just like you did - before the "load" command.

> 
> ----- Original Message ----- 
> From: "Gary Thomas" <gary@mlbassoc.com>
> To: "Antonello Lombardinilo" <antonello@kasko.it>
> Cc: <ecos-discuss@sources.redhat.com>
> Sent: Friday, September 24, 2004 4:09 PM
> Subject: Re: [ECOS] arm-elf-gdb Cannot access memory at address ...[IXDP425]
> 
> 
> > On Fri, 2004-09-24 at 08:00, Antonello Lombardinilo wrote:
> > > I have IXDP425 board (B0 step) with lastet redboot:
> >
> > --------------------------------------------------------------------------
> --
> > > ----
> > > +Ethernet eth0: MAC address 00:12:34:56:78:9a
> > > IP: 192.168.1.55/255.255.255.0, Gateway: 192.168.1.1
> > > Default server: 192.168.1.202
> > >
> > > RedBoot(tm) bootstrap and debug environment [ROM]
> > > Non-certified release, version UNKNOWN - built 14:32:40, Sep 24 2004
> > >
> > > Platform: IXDP425 Development Platform (XScale) BE
> > > Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
> > >
> > > RAM: 0x00000000-0x10000000, [0x0001fe20-0x0ffd0000] available
> > > FLASH: 0x50000000 - 0x51000000, 128 blocks of 0x00020000 bytes each.
> > > RedBoot>
> >
> > --------------------------------------------------------------------------
> --
> > > ----
> > >
> > > I have used configtool to build library and test in following step:
> > > 1) Build->Templates and select "IXDP425 board" with default package
> > > 2) Build->Library
> > > 3) Build->Tests
> > > Now, I would like to use arm-elf-gdb to load and run the tests
> application:
> > >
> >
> > --------------------------------------------------------------------------
> --
> > > ----
> > > [root@KaskoPC002 tests]# arm-elf-gdb
> > > GNU gdb 5.3
> > > 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) target remote 192.168.1.55:9000
> > > Remote debugging using 192.168.1.55:9000
> > > Cannot access memory at address 0xbcfefc0f   <----- ?????
> > > 0x28550150 in ?? ()
> > > (gdb) load thread0
> > > Loading section .rom_vectors, size 0x40 lma 0x80000
> > > Loading section .text, size 0x6bf4 lma 0x80040
> > > Loading section .rodata, size 0x44c lma 0x86c34
> > > Loading section .data, size 0x34c lma 0x87080
> > > Start address 0x80040, load size 29644
> > > Transfer rate: 237152 bits/sec, 299 bytes/write.
> > > (gdb) continue
> > > Continuing.
> > >
> > > Program received signal SIGBUS, Bus error.
> > > Cannot access memory at address 0xbcfefc0f
> > > 0x00080040 in ?? ()
> > > (gdb)
> >
> > --------------------------------------------------------------------------
> --
> > > ----
> > >
> > > Where do I make a error?
> >
> > This is an ancient bug in GDB (I reported it in 1998!)
> >
> > Try running it this way:
> >   # arm-elf-gdb thread0
> >   (gdb) load
> >   (gdb) continue
> >
> > -- 
> > Gary Thomas <gary@mlbassoc.com>
> > MLB Associates
> >
> >
-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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