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From: "Robert Cragie" <rcc@jennic.com>
To: <sid@sources.redhat.com>
Subject: Trying to run on pid7t board
Date: Wed, 21 Aug 2002 09:24:00 -0000
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Hi,

I have got SID via CVS (on 9th August 2002 about 1000 GMT) and built and
installed it fine on Redhat Linux 6.1. I have built a simple test using
eCos, using the pid target. I am invoking sid as follows:

arm-elf-sid --board=pid7t --verbose -EL --gdb=2000

I then connect to it using gdb (insight 5.0), and connect successfully to
the target. I then download the test, and inspect memory at 0x8000, no
problem, it's there. However, when I start to run, it hits the breakpoint I
have set, but I notice all the code has vanished at 0x8000, and it's
executing 0x00000000 each time. Any idea what's going on?

Here's the output (between <log></log>) from sid after downloading. I am
suspicious of the 'flush_i_cache' line - could this be flushing 0 into the
program space?:

<output from sid...>

process_set_reg 15 = [40 80  0  0 ]
<gdbserv_data_packet:Z>
add_breakpoint type 0 addr 77740 length 4
<gdbserv_data_packet:Z>
add_breakpoint type 0 addr 33992 length 4
<gdbserv_data_packet:H>
<target_packet>
<gdbserv_data_packet:c>
flush_i_cache     <**** I am suspicious of this.
continue_program
target_power 1
  Target scheduler 0 enabled==0
  Host scheduler 0 yielded==1
trapstop_handler
target_power 0
  Target scheduler 0 enabled==1
  Host scheduler 0 yielded==0
<gdbserv_fromtarget_break RUNNING>
process_get_exp_regs 7 11 13 14 15 25 bytes=24
<gdbserv_data_packet:m>
process_get_mem addr=33976 len=4
<gdbserv_data_packet:z>
remove_breakpoint type 0 addr 77740 length 4
<gdbserv_data_packet:z>
remove_breakpoint type 0 addr 33992 length 4
<gdbserv_data_packet:m>
process_get_mem addr=32768 len=128
<gdbserv_data_packet:g>
process_get_regs
num_regs=26 bytes=168
<gdbserv_data_packet:m>
process_get_mem addr=32768 len=128
<gdbserv_data_packet:k>
exit_program
target_power 0
  Target scheduler 0 enabled==0
  Host scheduler 0 yielded==1
<gdbserv_fromtarget_break BROKEN>
socketio: ieof1
gdb: disconnect
<gdbserv_fromclient_detach EXITING>
process_detach
target_power 0
  Target scheduler 0 enabled==0
  Host scheduler 0 yielded==1
main loop ended after 47041 iterations.
main loop starting.
socketio: using fd 3
socketio: server at 0.0.0.0:2000
target_power 0
  Target scheduler 0 enabled==0
  Host scheduler 0 yielded==1

</output from sid...>

Robert Cragie, Design Engineer
_______________________________________________________________
Jennic Ltd, Furnival Street, Sheffield, S1 4QT,  UK
http://www.jennic.com  Tel: +44 (0) 114 281 2655