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Message
From: realamd at 126.com<realamd@1...>
Date: Tue Nov 27 08:32:03 CET 2007
Subject: [openrisc] Why the LOAD can't work in gdb?
I attached Xilinx parallel cable III to J4 connector on the board,
and connected it to parralel port on Linux computer.
Connect my computer COM port to J9(dce) port by direct cable.
Start JTAG port server:
jp1 -xpc3 9999
and leave it running, it displayed like this:
Connected to parallel port at 378
Dropping root privileges.
Read npc = 0000000c ppc = 00000024 r1 = 00000005
Expected npc = 4000000c ppc = 40000024 r1 = 00000005
Read npc = 0000000c ppc = 00000024 r1 = 00000008
Expected npc = 4000000c ppc = 40000024 r1 = 00000008
Read npc = 00000024 ppc = 00000020 r1 = 0000000b
Expected npc = 40000024 ppc = 40000020 r1 = 0000000b
Read npc = 00000020 ppc = 0000001c r1 = 00000018
Expected npc = 40000020 ppc = 4000001c r1 = 00000018
Read npc = 0000001c ppc = 00000018 r1 = 00000031
Expected npc = 4000001c ppc = 40000018 r1 = 00000031
Read npc = 00000020 ppc = 0000001c r1 = 00000032
Expected npc = 40000020 ppc = 4000001c r1 = 00000032
Read npc = 00000010 ppc = 0000000c r1 = 00000063
Expected npc = 40000010 ppc = 4000000c r1 = 00000063
Read npc = 00000024 ppc = 00000020 r1 = 00000065
Expected npc = 40000024 ppc = 40000020 r1 = 00000065
Read npc = 0000000c ppc = 00000024 r1 = 000000c9
Expected npc = 4000000c ppc = 40000024 r1 = 000000c9
result = 5eaddead
Dropping root privileges.
JTAG Proxy server started on port 9999
Press CTRL+c to exit.
>From another console,I started debugger:
[zzx at localhost bin]$ ./or32-elf-gdb hello.or32
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=or32-elf"...
(gdb) target jtag jtag://localhost:9999
Remote or1k debugging using jtag://localhost:9999
Debug group should be available in the or1k implementation.
(gdb) load
You can't do that when your target is `exec'
It seemed that the or1k implementation's debug group is not available ,
or the gdb does'nt include the 'load' . Should I try another gdb ?
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