Hmm, something does not work with the cortexm3 breakpoints.
I start gdb.
Load (flash) my program via gdb.
I use "mon reset" to reset the cpu.
I step 1 time (istep).
I set 1 breakpoint some place in "main"
I then click continue.
it closes the connection - I am lost/stuck and do not know what to do next.
Any suggestions? Cortex is seems very painful! it should not be like this.
-Duane.
GDB
Code Sourcery command line (W/ DDD gui)
gdb-2008q1-126.tar.bz2
target: arm-none-eabi
Target:
stm32 corext m3
openocd:
svn: 809
PLUS - spen's GDB patch that sends the xml to code sourcery gdb and
disables GDB HACKS.
relevent portion of the (LARGE) debug log is:
Debug: 367 41107 target.c:1255 target_write_u32(): address:
0xe0002008, value: 0x00000000
Debug: 368 44097 gdb_server.c:1897 gdb_input_inner(): received packet:
'Z1,8000376,2'
Debug: 369 44097 gdb_server.c:1242 gdb_breakpoint_watchpoint_packet(): -
Debug: 370 44097 target.c:1255 target_write_u32(): address:
0xe0002008, value: 0x88000375
Debug: 371 44107 cortex_m3.c:828 cortex_m3_set_breakpoint(): fpc_num 0
fpcr_value 0x88000375
Debug: 372 44107 breakpoints.c:95 breakpoint_add(): added hardware
breakpoint at 0x08000376 of length 0x00000002
Debug: 373 44107 gdb_server.c:1897 gdb_input_inner(): received packet: 'c'
Debug: 374 44107 gdb_server.c:1207 gdb_step_continue_packet(): -
Debug: 375 44107 gdb_server.c:1221 gdb_step_continue_packet(): continue
Debug: 376 44107 armv7m.c:127 armv7m_restore_context():
Debug: 377 44110 target.c:741 target_call_event_callbacks(): target
event 1
Debug: 378 44110 cortex_m3.c:610 cortex_m3_resume(): target resumed at
0x800038e
Debug: 379 44112 cortex_m3.c:303 cortex_m3_debug_entry():
Debug: 380 44116 cortex_m3.c:111 cortex_m3_clear_halt(): NVIC_DFSR 0x2
Debug: 381 44124 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 0 value 0x40013800
Debug: 382 44129 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 1 value 0x1
Debug: 383 44135 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 2 value 0x40013800
Debug: 384 44144 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 3 value 0x260c
Debug: 385 44150 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 4 value 0x40013800
Debug: 386 44156 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 5 value 0x20004fd8
Debug: 387 44162 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 6 value 0x0
Debug: 388 44167 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 7 value 0x2000ffd0
Debug: 389 44173 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 8 value 0x1
Debug: 390 44180 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 9 value 0xfdffeff9
Debug: 391 44188 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 10 value 0x51783d85
Debug: 392 44198 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 11 value 0x7e3fe3c1
Debug: 393 44204 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 12 value 0x800805d
Debug: 394 44209 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 13 value 0x20004fc8
Debug: 395 44215 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 14 value 0x8000377
Debug: 396 44222 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 15 value 0x8000376
Debug: 397 44228 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 16 value 0x21000000
Debug: 398 44234 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 17 value 0x20004fc8
Debug: 399 44240 cortex_m3.c:1125 cortex_m3_load_core_reg_u32(): load
from core reg 18 value 0x488281e8
Debug: 400 44248 cortex_m3.c:1151 cortex_m3_load_core_reg_u32(): load
from special reg 19 value 0x0
Debug: 401 44253 cortex_m3.c:1151 cortex_m3_load_core_reg_u32(): load
from special reg 20 value 0x0
Debug: 402 44259 cortex_m3.c:1151 cortex_m3_load_core_reg_u32(): load
from special reg 21 value 0x0
Debug: 403 44266 cortex_m3.c:1151 cortex_m3_load_core_reg_u32(): load
from special reg 22 value 0x0
Debug: 404 44266 cortex_m3.c:363 cortex_m3_debug_entry(): entered
debug state in core mode: Thread at PC 0x8000376, target->state: halted
Debug: 405 44266 target.c:741 target_call_event_callbacks(): target
event 0
Error: 406 50780 target.c:292 target_resume(): timeout waiting for
target resume
Debug: 407 50781 gdb_server.c:1897 gdb_input_inner(): received packet: 'g'
Error: 408 50782 gdb_server.c:371 gdb_put_packet_inner(): unknown
character 0x24 in reply, dropping connection
Warning: 409 50782 gdb_server.c:426 gdb_get_packet_inner(): ignoring
character 0x67
Warning: 410 50782 gdb_server.c:426 gdb_get_packet_inner(): ignoring
character 0x23
Warning: 411 50782 gdb_server.c:426 gdb_get_packet_inner(): ignoring
character 0x36
Warning: 412 50782 gdb_server.c:426 gdb_get_packet_inner(): ignoring
character 0x37
Info: 413 50783 server.c:388 server_loop(): dropped 'gdb' connection
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