nicolas/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added the ability to run "symbolicate [options] <crashlog-index>" in interactive mode.

Browse Source 
llvm-svn: 157770
This commit is contained in:
Greg Clayton
2012-05-31 21:21:08 +00:00
parent ce76c62b08
commit eb749096e0
1 changed files with 123 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files

221
lldb/examples/python/crashlog.py
View File

@@ -380,6 +380,24 @@ class Interactive(cmd.Cmd):
'''Quit command'''
return True
def do_symbolicate(self, line):
description='''Symbolicate one or more darwin crash log files by index to provide source file and line information,
inlined stack frames back to the concrete functions, and disassemble the location of the crash
for the first frame of the crashed thread.'''
option_parser = CreateSymbolicateCrashLogOptions ('symbolicate', description, False)
command_args = shlex.split(line)
try:
(options, args) = option_parser.parse_args(command_args)
except:
return
for idx_str in args:
idx = int(idx_str)
if idx < len(self.crash_logs):
SymbolicateCrashLog (self.crash_logs[idx], options)
else:
print 'error: crash log index %u is out of range' % (idx)
def do_list(self, line=None):
'''Dump a list of all crash logs that are currently loaded.
@@ -459,13 +477,110 @@ def interactive_crashlogs(options, args):
def Symbolicate(debugger, command, result, dict):
print 'def Symbolicate(debugger, command, result, dict): called with "%s"' % (command)
try:
SymbolicateCrashLog (shlex.split(command))
SymbolicateCrashLogs (shlex.split(command))
except:
result.PutCString ("error: python exception %s" % sys.exc_info()[0])
def SymbolicateCrashLog(crash_log, options):
if crash_log.error:
print crash_log.error
return
if options.verbose:
crash_log.dump()
if not crash_log.images:
print 'error: no images in crash log'
return
target = crash_log.create_target ()
if not target:
return
exe_module = target.GetModuleAtIndex(0)
images_to_load = list()
loaded_images = list()
if options.load_all_images:
# --load-all option was specified, load everything up
for image in crash_log.images:
images_to_load.append(image)
else:
# Only load the images found in stack frames for the crashed threads
for ident in crash_log.idents:
images = crash_log.find_images_with_identifier (ident)
if images:
for image in images:
images_to_load.append(image)
else:
print 'error: can\'t find image for identifier "%s"' % ident
for image in images_to_load:
if image in loaded_images:
print "warning: skipping %s loaded at %#16.16x duplicate entry (probably commpage)" % (image.path, image.text_addr_lo)
else:
err = image.add_module (target)
if err:
print err
else:
#print 'loaded %s' % image
loaded_images.append(image)
for thread in crash_log.threads:
this_thread_crashed = thread.did_crash()
if options.crashed_only and this_thread_crashed == False:
continue
print "%s" % thread
#prev_frame_index = -1
for frame_idx, frame in enumerate(thread.frames):
disassemble = (this_thread_crashed or options.disassemble_all_threads) and frame_idx < options.disassemble_depth;
if frame_idx == 0:
symbolicated_frame_addresses = crash_log.symbolicate (frame.pc)
else:
# Any frame above frame zero and we have to subtract one to get the previous line entry
symbolicated_frame_addresses = crash_log.symbolicate (frame.pc - 1)
if symbolicated_frame_addresses:
symbolicated_frame_address_idx = 0
for symbolicated_frame_address in symbolicated_frame_addresses:
print '[%3u] %s' % (frame_idx, symbolicated_frame_address)
def SymbolicateCrashLog(command_args):
if symbolicated_frame_address_idx == 0:
if disassemble:
instructions = symbolicated_frame_address.get_instructions()
if instructions:
print
symbolication.disassemble_instructions (target,
instructions,
frame.pc,
options.disassemble_before,
options.disassemble_after, frame.index > 0)
print
symbolicated_frame_address_idx += 1
else:
print frame
print
if options.dump_image_list:
print "Binary Images:"
for image in crash_log.images:
print image
def CreateSymbolicateCrashLogOptions(command_name, description, add_interactive_options):
usage = "usage: %prog [options] <FILE> [FILE ...]"
option_parser = optparse.OptionParser(description=description, prog='crashlog',usage=usage)
option_parser.add_option('-v', '--verbose', action='store_true', dest='verbose', help='display verbose debug info', default=False)
option_parser.add_option('-a', '--load-all', action='store_true', dest='load_all_images', help='load all executable images, not just the images found in the crashed stack frames', default=False)
option_parser.add_option('--images', action='store_true', dest='dump_image_list', help='show image list', default=False)
option_parser.add_option('-g', '--debug-delay', type='int', dest='debug_delay', metavar='NSEC', help='pause for NSEC seconds for debugger', default=0)
option_parser.add_option('-c', '--crashed-only', action='store_true', dest='crashed_only', help='only symbolicate the crashed thread', default=False)
option_parser.add_option('-d', '--disasm-depth', type='int', dest='disassemble_depth', help='set the depth in stack frames that should be disassembled (default is 1)', default=1)
option_parser.add_option('-D', '--disasm-all', action='store_true', dest='disassemble_all_threads', help='enabled disassembly of frames on all threads (not just the crashed thread)', default=False)
option_parser.add_option('-B', '--disasm-before', type='int', dest='disassemble_before', help='the number of instructions to disassemble before the frame PC', default=4)
option_parser.add_option('-A', '--disasm-after', type='int', dest='disassemble_after', help='the number of instructions to disassemble after the frame PC', default=4)
if add_interactive_options:
option_parser.add_option('-i', '--interactive', action='store_true', help='parse all crash logs and enter interactive mode', default=False)
return option_parser
def SymbolicateCrashLogs(command_args):
description='''Symbolicate one or more darwin crash log files to provide source file and line information,
inlined stack frames back to the concrete functions, and disassemble the location of the crash
for the first frame of the crashed thread.
@@ -474,19 +589,9 @@ for use at the LLDB command line. After a crash log has been parsed and symbolic
created that has all of the shared libraries loaded at the load addresses found in the crash log file. This allows
you to explore the program as if it were stopped at the locations described in the crash log and functions can
be disassembled and lookups can be performed using the addresses found in the crash log.'''
parser = optparse.OptionParser(description=description, prog='crashlog',usage=usage)
parser.add_option('-v', '--verbose', action='store_true', dest='verbose', help='display verbose debug info', default=False)
parser.add_option('-a', '--load-all', action='store_true', dest='load_all_images', help='load all executable images, not just the images found in the crashed stack frames', default=False)
parser.add_option('--images', action='store_true', dest='dump_image_list', help='show image list', default=False)
parser.add_option('-g', '--debug-delay', type='int', dest='debug_delay', metavar='NSEC', help='pause for NSEC seconds for debugger', default=0)
parser.add_option('-c', '--crashed-only', action='store_true', dest='crashed_only', help='only symbolicate the crashed thread', default=False)
parser.add_option('-d', '--disasm-depth', type='int', dest='disassemble_depth', help='set the depth in stack frames that should be disassembled (default is 1)', default=1)
parser.add_option('-D', '--disasm-all', action='store_true', dest='disassemble_all_threads', help='enabled disassembly of frames on all threads (not just the crashed thread)', default=False)
parser.add_option('-B', '--disasm-before', type='int', dest='disassemble_before', help='the number of instructions to disassemble before the frame PC', default=4)
parser.add_option('-A', '--disasm-after', type='int', dest='disassemble_after', help='the number of instructions to disassemble after the frame PC', default=4)
parser.add_option('-i', '--interactive', action='store_true', help='parse all crash logs and enter interactive mode', default=False)
option_parser = CreateSymbolicateCrashLogOptions ('crashlog', description, True)
try:
(options, args) = parser.parse_args(command_args)
(options, args) = option_parser.parse_args(command_args)
except:
return
@@ -505,93 +610,13 @@ be disassembled and lookups can be performed using the addresses found in the cr
interactive_crashlogs(options, args)
else:
for crash_log_file in args:
crash_log = CrashLog(crash_log_file)
#pp = pprint.PrettyPrinter(indent=4); pp.pprint(args)
if crash_log.error:
print crash_log.error
return
if options.verbose:
crash_log.dump()
if not crash_log.images:
print 'error: no images in crash log'
return
target = crash_log.create_target ()
if not target:
return
exe_module = target.GetModuleAtIndex(0)
images_to_load = list()
loaded_images = list()
if options.load_all_images:
# --load-all option was specified, load everything up
for image in crash_log.images:
images_to_load.append(image)
else:
# Only load the images found in stack frames for the crashed threads
for ident in crash_log.idents:
images = crash_log.find_images_with_identifier (ident)
if images:
for image in images:
images_to_load.append(image)
else:
print 'error: can\'t find image for identifier "%s"' % ident
for image in images_to_load:
if image in loaded_images:
print "warning: skipping %s loaded at %#16.16x duplicate entry (probably commpage)" % (image.path, image.text_addr_lo)
else:
err = image.add_module (target)
if err:
print err
else:
#print 'loaded %s' % image
loaded_images.append(image)
for thread in crash_log.threads:
this_thread_crashed = thread.did_crash()
if options.crashed_only and this_thread_crashed == False:
continue
print "%s" % thread
#prev_frame_index = -1
for frame_idx, frame in enumerate(thread.frames):
disassemble = (this_thread_crashed or options.disassemble_all_threads) and frame_idx < options.disassemble_depth;
if frame_idx == 0:
symbolicated_frame_addresses = crash_log.symbolicate (frame.pc)
else:
# Any frame above frame zero and we have to subtract one to get the previous line entry
symbolicated_frame_addresses = crash_log.symbolicate (frame.pc - 1)
if symbolicated_frame_addresses:
symbolicated_frame_address_idx = 0
for symbolicated_frame_address in symbolicated_frame_addresses:
print '[%3u] %s' % (frame_idx, symbolicated_frame_address)
if symbolicated_frame_address_idx == 0:
if disassemble:
instructions = symbolicated_frame_address.get_instructions()
if instructions:
print
symbolication.disassemble_instructions (target,
instructions,
frame.pc,
options.disassemble_before,
options.disassemble_after, frame.index > 0)
print
symbolicated_frame_address_idx += 1
else:
print frame
print
if options.dump_image_list:
print "Binary Images:"
for image in crash_log.images:
print image
crash_log = CrashLog(crash_log_file)
SymbolicateCrashLog (crash_log, options)
if __name__ == '__main__':
# Create a new debugger instance
print 'main'
lldb.debugger = lldb.SBDebugger.Create()
SymbolicateCrashLog (sys.argv[1:])
SymbolicateCrashLogs (sys.argv[1:])
elif getattr(lldb, 'debugger', None):
lldb.debugger.HandleCommand('command script add -f lldb.macosx.crashlog.Symbolicate crashlog')
print '"crashlog" command installed, type "crashlog --help" for detailed help'