The redboot is a ROMRAM image and it starts in flash and then copies itself to RAM. Then at redboot prompt I load the application image using ethernet to location 0x100000 in RAM (RAM starts at 0x00). I can, at this point, say 'go 0x100000' and the applications runs fine but I can't seem to get it to run using gdb command.
Instead of running it from redboot prompt, I log out of the debug port and then I run powerpc-eabi-gdb on a linux box and then the rest is shown in the log. Thanx for the reply. ---------------------------------------- > Subject: RE: [ECOS] GDB Issue on MPC837X > Date: Tue, 8 Mar 2011 06:01:18 -0800 > From: ccout...@stmi.com > To: nd6...@hotmail.com; ecos-discuss@ecos.sourceware.org > > Hi, > > How do you load the application in RAM? Are you building a ROMRAM type of > application that relocates to RAM which you plan to debug using the GDB > stubs? Can you dump the memory content at address 0x100000 and forward, is > the memory initialized? > > Christophe > > -----Original Message----- > From: ecos-discuss-ow...@ecos.sourceware.org > [mailto:ecos-discuss-ow...@ecos.sourceware.org] On Behalf Of Chris Cuthbert > Sent: 8. mars 2011 02:33 > To: ecos-discuss > Subject: [ECOS] GDB Issue on MPC837X > > > Hello, > > I am trying to get gdb working on a MPC847X ERDB eval board using the serial > port. > Basically, I cannot get gdb to start executing the application loaded in RAM > at 0x100000. > Logs below. > > Any help appreciated. > Thanx. > > =~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2011.03.07 15:42:06 =~=~=~=~=~=~=~=~=~=~=~= > (gdb) set debug serial 10 > (gdb) set debug remote 1 > (gdb) tar rem /dev/ttySI166 > Remote debugging using /dev/ttySI166 > Sending packet: $Hc-1#09...[ > r +]Ack > [$][O][K][#][9][a]Packet received: OK > Sending packet: $qC#b4...[+]Ack > [$][E][0][2][#][a][7]Packet received: E02 > Sending packet: $qOffsets#4b...[+]Ack > [$][#][0][0]Packet received: > Sending packet: $?#3f...[+]Ack > [$][S][0][4][#][b][7]Packet received: S04 > Sending packet: $Hg0#df...[+]Ack > [$][O][K][#][9][a]Packet received: OK > Sending packet: $g#67...[+]Ack > [$][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][#][8][0]Packet > received: > 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 > 0x0 in __lshrdi3 (u=0, b=0) > (gdb) > (gdb) jump *0x100000 > Line 16 is not in `__lshrdi3'. Jump anyway? (y or n) y > Continuing at 0x100000. > Sending packet: $P40=00100000#72...[+]Ack > [$][O][K][#][9][a]Packet received: OK > Sending packet: $Hc0#db...[+]Ack > [$][O][K][#][9][a]Packet received: OK > Sending packet: $c#63...[+]Ack > [$][T][0][4][4][0][:][0][0][1][0][0][0][0][0][;][0][1][:][0][0][0][0][0][0][0][0][;][#][6][8]Packet > received: T0440:00100000;01:00000000; > > Program received signal SIGILL, Illegal instruction. > 0x100000 in _stext () at include/exception:16 > 16 virtual ~exception () { } > Current language: auto; currently c++ > (gdb) > > > > -- > Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos > and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
