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Tools: fix crash logging using gdb dump

This commit is contained in:
bugobliterator 2021-10-28 12:11:58 +05:30 committed by Andrew Tridgell
parent a28bf358d1
commit 1a996aa6f9
2 changed files with 36 additions and 27 deletions
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59
Tools/debug/crash_debugger.py
View File

@ -21,6 +21,7 @@ import os
import time import time
from queue import Queue, Empty from queue import Queue, Empty
from threading import Thread from threading import Thread
import signal
def serial_debug(args): def serial_debug(args):
global spinner, process_cmd global spinner, process_cmd
@ -79,44 +80,52 @@ def swd_debug(args):
out.close() out.close()
hardfault_detected = False hardfault_detected = False
# Check if already in hardfault # Check if already in hardfault
p = subprocess.Popen(['arm-none-eabi-gdb', '-nx', '--batch', # p = subprocess.Popen(['arm-none-eabi-gdb', '-nx', '--batch',
'-ex', 'target extended-remote {}'.format(args.gdb_port), # '-ex', 'target extended-remote {}'.format(args.gdb_port),
'-ex', 'bt', # '-ex', 'bt',
args.elf_file], stdout=subprocess.PIPE, close_fds=ON_POSIX) # args.elf_file], stdout=subprocess.PIPE, close_fds=ON_POSIX)
q = Queue() # q = Queue()
t = Thread(target=enqueue_output, args=(p.stdout, q)) # t = Thread(target=enqueue_output, args=(p.stdout, q))
t.daemon = True # thread dies with the program # t.daemon = True # thread dies with the program
t.start() # t.start()
print("Checking if already Crashed") # print("Checking if already Crashed")
while p.poll() is None: # while p.poll() is None:
try: # try:
line = q.get(False) # line = q.get(False)
if b"HardFault_Handler" in line: # if b"HardFault_Handler" in line:
hardfault_detected = True # hardfault_detected = True
break # break
except Empty: # except Empty:
pass # pass
sys.stdout.write(next(spinner)) # sys.stdout.write(next(spinner))
sys.stdout.flush() # sys.stdout.flush()
sys.stdout.write('\b') # sys.stdout.write('\b')
if not hardfault_detected: if not hardfault_detected:
# lets place breakpoint at HardFault_Handler and wait for it to hit # lets place breakpoint at HardFault_Handler and wait for it to hit
p = subprocess.Popen(['arm-none-eabi-gdb', '-nx', '--batch', cmd = ['arm-none-eabi-gdb', '-nx', '--batch',
'-ex', 'target extended-remote {}'.format(args.gdb_port), '-ex', 'target extended-remote {}'.format(args.gdb_port),
'-ex', 'b HardFault_Handler', '-ex', 'b *&HardFault_Handler',
'-ex', 'continue',
'-ex', 'run', '-ex', 'run',
args.elf_file], stdout=subprocess.PIPE, close_fds=ON_POSIX) args.elf_file]
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, close_fds=ON_POSIX)
q = Queue() q = Queue()
t = Thread(target=enqueue_output, args=(p.stdout, q)) t = Thread(target=enqueue_output, args=(p.stdout, q))
t.daemon = True # thread dies with the program t.daemon = True # thread dies with the program
t.start() t.start()
print(' '.join(cmd))
# Wait for HardFault_Handler to hit # Wait for HardFault_Handler to hit
running = False
while p.poll() is None: while p.poll() is None:
try: try:
line = q.get(False) line = q.get(False)
if b"HardFault_Handler" in line: # print(line.decode('utf-8'))
if b"Breakpoint" in line:
time.sleep(1)
p.send_signal(signal.SIGINT)
running = True
if b"HardFault_Handler" in line and running:
hardfault_detected = True hardfault_detected = True
break break
except Empty: except Empty:

4
Tools/debug/crash_dump.scr
View File

@ -4,8 +4,8 @@ set logging on
set var $ptr=&__ram0_start__ set var $ptr=&__ram0_start__
set var $end=&__ram0_end__ set var $end=&__ram0_end__
while $ptr < $end while $ptr < $end
x/4wx $ptr x/16wx $ptr
set var $ptr+=4 set var $ptr+=16
end end
info all-registers info all-registers
set logging off set logging off