forked from OSchip/llvm-project
574 lines
29 KiB
Python
Executable File
574 lines
29 KiB
Python
Executable File
#!/usr/bin/python
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#----------------------------------------------------------------------
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# Be sure to add the python path that points to the LLDB shared library.
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# On MacOSX csh, tcsh:
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# setenv PYTHONPATH /Developer/Library/PrivateFrameworks/LLDB.framework/Resources/Python
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# On MacOSX sh, bash:
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# export PYTHONPATH=/Developer/Library/PrivateFrameworks/LLDB.framework/Resources/Python
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#----------------------------------------------------------------------
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import lldb
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import optparse
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import os
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import re
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import sys
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import time
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PARSE_MODE_NORMAL = 0
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PARSE_MODE_THREAD = 1
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PARSE_MODE_IMAGES = 2
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PARSE_MODE_THREGS = 3
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PARSE_MODE_SYSTEM = 4
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class CrashLog:
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"""Class that does parses darwin crash logs"""
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thread_state_regex = re.compile('^Thread ([0-9]+) crashed with')
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thread_regex = re.compile('^Thread ([0-9]+)([^:]*):(.*)')
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frame_regex = re.compile('^([0-9]+).*\t(0x[0-9a-fA-F]+) +(.*)')
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image_regex_uuid = re.compile('(0x[0-9a-fA-F]+)[- ]+(0x[0-9a-fA-F]+) +([^ ]+) +([^<]+)<([-0-9a-fA-F]+)> (.*)');
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image_regex_no_uuid = re.compile('(0x[0-9a-fA-F]+)[- ]+(0x[0-9a-fA-F]+) +([^ ]+) +([^/]+)/(.*)');
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empty_line_regex = re.compile('^$')
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class Thread:
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"""Class that represents a thread in a darwin crash log"""
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def __init__(self, index):
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self.index = index
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self.frames = list()
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self.registers = dict()
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self.reason = None
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self.queue = None
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def dump(self, prefix):
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print "%sThread[%u] %s" % (prefix, self.index, self.reason)
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if self.frames:
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print "%s Frames:" % (prefix)
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for frame in self.frames:
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frame.dump(prefix + ' ')
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if self.registers:
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print "%s Registers:" % (prefix)
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for reg in self.registers.keys():
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print "%s %-5s = %#16.16x" % (prefix, reg, self.registers[reg])
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def did_crash(self):
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return self.reason != None
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def __str__(self):
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s = "Thread[%u]" % self.index
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if self.reason:
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s += ' %s' % self.reason
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return s
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class Frame:
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"""Class that represents a stack frame in a thread in a darwin crash log"""
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def __init__(self, index, pc, details):
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self.index = index
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self.pc = pc
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self.sym_ctx = None
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self.details = details
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def __str__(self):
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return "[%2u] %#16.16x %s" % (self.index, self.pc, self.details)
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def dump(self, prefix):
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print "%s%s" % (prefix, self)
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class Image:
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"""Class that represents a binary images in a darwin crash log"""
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def __init__(self, text_addr_lo, text_addr_hi, ident, version, uuid, path):
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self.text_addr_lo = text_addr_lo
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self.text_addr_hi = text_addr_hi
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self.ident = ident
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self.version = version
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self.uuid = uuid
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self.path = path
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def dump(self, prefix):
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print "%s%s" % (prefix, self)
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def __str__(self):
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return "%#16.16x %s %s" % (self.text_addr_lo, self.uuid, self.path)
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def __init__(self, path):
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"""CrashLog constructor that take a path to a darwin crash log file"""
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self.path = path;
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self.info_lines = list()
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self.system_profile = list()
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self.threads = list()
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self.images = list()
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self.crashed_thread_idx = -1
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self.version = -1
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# With possible initial component of ~ or ~user replaced by that user's home directory.
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f = open(os.path.expanduser(self.path))
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self.file_lines = f.read().splitlines()
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parse_mode = PARSE_MODE_NORMAL
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thread = None
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for line in self.file_lines:
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# print line
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line_len = len(line)
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if line_len == 0:
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if thread:
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if parse_mode == PARSE_MODE_THREAD:
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if thread.index == self.crashed_thread_idx:
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thread.reason = ''
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if self.thread_exception:
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thread.reason += self.thread_exception
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if self.thread_exception_data:
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thread.reason += " (%s)" % self.thread_exception_data
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self.threads.append(thread)
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thread = None
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else:
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# only append an extra empty line if the previous line
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# in the info_lines wasn't empty
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if len(self.info_lines) > 0 and len(self.info_lines[-1]):
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self.info_lines.append(line)
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parse_mode = PARSE_MODE_NORMAL
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# print 'PARSE_MODE_NORMAL'
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elif parse_mode == PARSE_MODE_NORMAL:
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if line.startswith ('Process:'):
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(self.process_name, pid_with_brackets) = line[8:].strip().split()
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self.process_id = pid_with_brackets.strip('[]')
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elif line.startswith ('Path:'):
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self.process_path = line[5:].strip()
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elif line.startswith ('Identifier:'):
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self.process_identifier = line[11:].strip()
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elif line.startswith ('Version:'):
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(self.process_version, compatability_version) = line[8:].strip().split()
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self.process_compatability_version = compatability_version.strip('()')
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elif line.startswith ('Parent Process:'):
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(self.parent_process_name, pid_with_brackets) = line[15:].strip().split()
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self.parent_process_id = pid_with_brackets.strip('[]')
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elif line.startswith ('Exception Type:'):
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self.thread_exception = line[15:].strip()
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continue
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elif line.startswith ('Exception Codes:'):
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self.thread_exception_data = line[16:].strip()
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continue
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elif line.startswith ('Crashed Thread:'):
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self.crashed_thread_idx = int(line[15:].strip().split()[0])
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continue
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elif line.startswith ('Report Version:'):
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self.version = int(line[15:].strip())
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continue
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elif line.startswith ('System Profile:'):
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parse_mode = PARSE_MODE_SYSTEM
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continue
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elif (line.startswith ('Interval Since Last Report:') or
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line.startswith ('Crashes Since Last Report:') or
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line.startswith ('Per-App Interval Since Last Report:') or
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line.startswith ('Per-App Crashes Since Last Report:') or
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line.startswith ('Sleep/Wake UUID:') or
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line.startswith ('Anonymous UUID:')):
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# ignore these
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continue
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elif line.startswith ('Thread'):
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thread_state_match = self.thread_state_regex.search (line)
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if thread_state_match:
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thread_state_match = self.thread_regex.search (line)
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thread_idx = int(thread_state_match.group(1))
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parse_mode = PARSE_MODE_THREGS
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thread = self.threads[thread_idx]
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else:
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thread_match = self.thread_regex.search (line)
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if thread_match:
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# print 'PARSE_MODE_THREAD'
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parse_mode = PARSE_MODE_THREAD
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thread_idx = int(thread_match.group(1))
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thread = CrashLog.Thread(thread_idx)
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continue
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elif line.startswith ('Binary Images:'):
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parse_mode = PARSE_MODE_IMAGES
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continue
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self.info_lines.append(line.strip())
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elif parse_mode == PARSE_MODE_THREAD:
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frame_match = self.frame_regex.search(line)
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if frame_match:
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thread.frames.append (CrashLog.Frame(int(frame_match.group(1)), int(frame_match.group(2), 0), frame_match.group(3)))
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else:
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print "error: frame regex failed"
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elif parse_mode == PARSE_MODE_IMAGES:
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image_match = self.image_regex_uuid.search (line)
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if image_match:
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image = CrashLog.Image (int(image_match.group(1),0),
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int(image_match.group(2),0),
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image_match.group(3).strip(),
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image_match.group(4).strip(),
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image_match.group(5),
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image_match.group(6))
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self.images.append (image)
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else:
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image_match = self.image_regex_no_uuid.search (line)
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if image_match:
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image = CrashLog.Image (int(image_match.group(1),0),
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int(image_match.group(2),0),
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image_match.group(3).strip(),
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image_match.group(4).strip(),
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None,
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image_match.group(5))
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self.images.append (image)
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else:
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print "error: image regex failed for: %s" % line
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elif parse_mode == PARSE_MODE_THREGS:
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stripped_line = line.strip()
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reg_values = stripped_line.split(' ')
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for reg_value in reg_values:
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(reg, value) = reg_value.split(': ')
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thread.registers[reg.strip()] = int(value, 0)
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elif parse_mode == PARSE_MODE_SYSTEM:
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self.system_profile.append(line)
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f.close()
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def dump(self):
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print "Crash Log File: %s" % (self.path)
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print "\nThreads:"
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for thread in self.threads:
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thread.dump(' ')
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print "\nImages:"
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for image in self.images:
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image.dump(' ')
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def disassemble_instructions (target, instructions, pc, insts_before_pc, insts_after_pc):
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lines = list()
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pc_index = -1
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comment_column = 50
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for inst_idx, inst in enumerate(instructions):
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inst_pc = inst.GetAddress().GetLoadAddress(target);
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if pc == inst_pc:
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pc_index = inst_idx
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mnemonic = inst.GetMnemonic (target)
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operands = inst.GetOperands (target)
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comment = inst.GetComment (target)
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#data = inst.GetData (target)
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lines.append ("%#16.16x: %8s %s" % (inst_pc, mnemonic, operands))
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if comment:
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line_len = len(lines[-1])
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if line_len < comment_column:
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lines[-1] += ' ' * (comment_column - line_len)
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lines[-1] += "; %s" % comment
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if pc_index >= 0:
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if pc_index >= insts_before_pc:
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start_idx = pc_index - insts_before_pc
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else:
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start_idx = 0
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end_idx = pc_index + insts_after_pc
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if end_idx > inst_idx:
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end_idx = inst_idx
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for i in range(start_idx, end_idx+1):
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if i == pc_index:
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print ' -> ', lines[i]
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else:
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print ' ', lines[i]
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def print_module_section_data (section):
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print section
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section_data = section.GetSectionData()
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if section_data:
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ostream = lldb.SBStream()
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section_data.GetDescription (ostream, section.GetFileAddress())
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print ostream.GetData()
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def print_module_section (section, depth):
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print section
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if depth > 0:
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num_sub_sections = section.GetNumSubSections()
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for sect_idx in range(num_sub_sections):
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print_module_section (section.GetSubSectionAtIndex(sect_idx), depth - 1)
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def print_module_sections (module, depth):
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for sect in module.section_iter():
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print_module_section (sect, depth)
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def print_module_symbols (module):
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for sym in module:
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print sym
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def usage():
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print "Usage: lldb-symbolicate.py [-n name] executable-image"
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sys.exit(0)
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if __name__ == '__main__':
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parser = optparse.OptionParser(description='A script that parses skinny and universal mach-o files.')
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parser.add_option('--arch', type='string', metavar='arch', dest='triple', help='specify one architecture or target triple')
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parser.add_option('--platform', type='string', metavar='platform', dest='platform', help='specify one platform by name')
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parser.add_option('--verbose', action='store_true', dest='verbose', help='display verbose debug info', default=False)
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parser.add_option('--interactive', action='store_true', dest='interactive', help='enable interactive mode', default=False)
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parser.add_option('--no-images', action='store_false', dest='show_images', help='don\'t show images in stack frames', default=True)
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parser.add_option('--no-dependents', action='store_false', dest='dependents', help='skip loading dependent modules', default=True)
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parser.add_option('--sections', action='store_true', dest='dump_sections', help='show module sections', default=False)
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parser.add_option('--symbols', action='store_true', dest='dump_symbols', help='show module symbols', default=False)
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parser.add_option('--image-list', action='store_true', dest='dump_image_list', help='show image list', default=False)
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parser.add_option('--debug-delay', type='int', dest='debug_delay', metavar='NSEC', help='pause for NSEC seconds for debugger', default=0)
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parser.add_option('--section-depth', type='int', dest='section_depth', help='set the section depth to use when showing sections', default=0)
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parser.add_option('--section-data', type='string', action='append', dest='sect_data_names', help='specify sections by name to display data for')
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parser.add_option('--address', type='int', action='append', dest='addresses', help='specify addresses to lookup')
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parser.add_option('--crash-log', type='string', action='append', dest='crash_log_files', help='specify crash log files to symbolicate')
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parser.add_option('--crashed-only', action='store_true', dest='crashed_only', help='only show the crashed thread', default=False)
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loaded_addresses = False
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(options, args) = parser.parse_args()
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if options.verbose:
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print 'options', options
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if options.debug_delay > 0:
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print "Waiting %u seconds for debugger to attach..." % options.debug_delay
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time.sleep(options.debug_delay)
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# Create a new debugger instance
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debugger = lldb.SBDebugger.Create()
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# When we step or continue, don't return from the function until the process
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# stops. We do this by setting the async mode to false.
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debugger.SetAsync (False)
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error = lldb.SBError()
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if options.crash_log_files:
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options.dependents = False
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for crash_log_file in options.crash_log_files:
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triple = "x86_64"
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crash_log = CrashLog(crash_log_file)
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#crash_log.dump()
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target = debugger.CreateTarget (crash_log.process_path, options.triple, options.platform, options.dependents, error);
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exe_module = target.GetModuleAtIndex(0)
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image_paths = list()
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for image in crash_log.images:
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if image.path == crash_log.process_path:
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module = exe_module
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else:
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module = target.AddModule (image.path, options.triple, image.uuid)
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if image.path in image_paths:
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print "warning: skipping %s loaded at %#16.16x duplicate entry (probably commpage)" % (image.path, image.text_addr_lo)
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else:
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image_paths.append(image.path)
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if not module and image.uuid != module.GetUUIDString():
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if image.uuid:
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print "warning: couldn't locate %s %s" % (image.uuid, image.path)
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else:
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print "warning: couldn't locate %s" % (image.path)
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else:
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target.SetSectionLoadAddress (module.FindSection ("__TEXT"), image.text_addr_lo)
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for line in crash_log.info_lines:
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print line
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# Reconstruct inlined frames for all threads for anything that has debug info
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for thread in crash_log.threads:
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if options.crashed_only and thread.did_crash() == False:
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continue
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# start a new frame list that we will fixup for each thread
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new_thread_frames = list()
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# Iterate through all concrete frames for a thread and resolve
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# any parent frames of inlined functions
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for frame_idx, frame in enumerate(thread.frames):
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# Resolve the frame's pc into a section + offset address 'pc_addr'
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pc_addr = target.ResolveLoadAddress (frame.pc)
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# Check to see if we were able to resolve the address
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if pc_addr:
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# We were able to resolve the frame's PC into a section offset
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# address.
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# Resolve the frame's PC value into a symbol context. A symbol
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# context can resolve a module, compile unit, function, block,
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# line table entry and/or symbol. If the frame has a block, then
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# we can look for inlined frames, which are represented by blocks
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# that have inlined information in them
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frame.sym_ctx = target.ResolveSymbolContextForAddress (pc_addr, lldb.eSymbolContextEverything);
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# dump if the verbose option was specified
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if options.verbose:
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print "frame.pc = %#16.16x (file_addr = %#16.16x)" % (frame.pc, pc_addr.GetFileAddress())
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print "frame.pc_addr = ", pc_addr
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print "frame.sym_ctx = "
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print frame.sym_ctx
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print
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# Append the frame we already had from the crash log to the new
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# frames list
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new_thread_frames.append(frame)
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new_frame = CrashLog.Frame (frame.index, -1, None)
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# Try and use the current frame's symbol context to calculate a
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# parent frame for an inlined function. If the curent frame is
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# inlined, it will return a valid symbol context for the parent
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# frame of the current inlined function
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parent_pc_addr = lldb.SBAddress()
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new_frame.sym_ctx = frame.sym_ctx.GetParentOfInlinedScope (pc_addr, parent_pc_addr)
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# See if we were able to reconstruct anything?
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while new_frame.sym_ctx:
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# We have a parent frame of an inlined frame, create a new frame
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# Convert the section + offset 'parent_pc_addr' to a load address
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new_frame.pc = parent_pc_addr.GetLoadAddress(target)
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# push the new frame onto the new frame stack
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new_thread_frames.append (new_frame)
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# dump if the verbose option was specified
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if options.verbose:
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print "new_frame.pc = %#16.16x (%s)" % (new_frame.pc, parent_pc_addr)
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print "new_frame.sym_ctx = "
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print new_frame.sym_ctx
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print
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# Create another new frame in case we have multiple inlined frames
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prev_new_frame = new_frame
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new_frame = CrashLog.Frame (frame.index, -1, None)
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# Swap the addresses so we can try another inlined lookup
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pc_addr = parent_pc_addr;
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new_frame.sym_ctx = prev_new_frame.sym_ctx.GetParentOfInlinedScope (pc_addr, parent_pc_addr)
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# Replace our thread frames with our new list that includes parent
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# frames for inlined functions
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thread.frames = new_thread_frames
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# Now iterate through all threads and display our richer stack backtraces
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for thread in crash_log.threads:
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this_thread_crashed = thread.did_crash()
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if options.crashed_only and this_thread_crashed == False:
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continue
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print "%s" % thread
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prev_frame_index = -1
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for frame_idx, frame in enumerate(thread.frames):
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details = ' %s' % frame.details
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module = frame.sym_ctx.GetModule()
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instructions = None
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if module:
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module_basename = module.GetFileSpec().GetFilename();
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function_start_load_addr = -1
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function_name = None
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function = frame.sym_ctx.GetFunction()
|
|
block = frame.sym_ctx.GetBlock()
|
|
line_entry = frame.sym_ctx.GetLineEntry()
|
|
symbol = frame.sym_ctx.GetSymbol()
|
|
inlined_block = block.GetContainingInlinedBlock();
|
|
if inlined_block:
|
|
function_name = inlined_block.GetInlinedName();
|
|
block_range_idx = inlined_block.GetRangeIndexForBlockAddress (target.ResolveLoadAddress (frame.pc))
|
|
if block_range_idx < lldb.UINT32_MAX:
|
|
block_range_start_addr = inlined_block.GetRangeStartAddress (block_range_idx)
|
|
function_start_load_addr = block_range_start_addr.GetLoadAddress (target)
|
|
else:
|
|
function_start_load_addr = frame.pc
|
|
if this_thread_crashed and frame_idx == 0:
|
|
instructions = function.GetInstructions(target)
|
|
elif function:
|
|
function_name = function.GetName()
|
|
function_start_load_addr = function.GetStartAddress().GetLoadAddress (target)
|
|
if this_thread_crashed and frame_idx == 0:
|
|
instructions = function.GetInstructions(target)
|
|
elif symbol:
|
|
function_name = symbol.GetName()
|
|
function_start_load_addr = symbol.GetStartAddress().GetLoadAddress (target)
|
|
if this_thread_crashed and frame_idx == 0:
|
|
instructions = symbol.GetInstructions(target)
|
|
|
|
if function_name:
|
|
# Print the function or symbol name and annotate if it was inlined
|
|
inline_suffix = ''
|
|
if inlined_block:
|
|
inline_suffix = '[inlined] '
|
|
else:
|
|
inline_suffix = ' '
|
|
if options.show_images:
|
|
details = "%s%s`%s" % (inline_suffix, module_basename, function_name)
|
|
else:
|
|
details = "%s" % (function_name)
|
|
# Dump the offset from the current function or symbol if it is non zero
|
|
function_offset = frame.pc - function_start_load_addr
|
|
if function_offset > 0:
|
|
details += " + %u" % (function_offset)
|
|
elif function_offset < 0:
|
|
defaults += " %i (invalid negative offset, file a bug) " % function_offset
|
|
# Print out any line information if any is available
|
|
if line_entry.GetFileSpec():
|
|
details += ' at %s' % line_entry.GetFileSpec().GetFilename()
|
|
details += ':%u' % line_entry.GetLine ()
|
|
column = line_entry.GetColumn()
|
|
if column > 0:
|
|
details += ':%u' % column
|
|
|
|
|
|
# Only print out the concrete frame index if it changes.
|
|
# if prev_frame_index != frame.index:
|
|
# print "[%2u] %#16.16x %s" % (frame.index, frame.pc, details)
|
|
# else:
|
|
# print " %#16.16x %s" % (frame.pc, details)
|
|
print "[%2u] %#16.16x %s" % (frame.index, frame.pc, details)
|
|
prev_frame_index = frame.index
|
|
if instructions:
|
|
print
|
|
disassemble_instructions (target, instructions, frame.pc, 4, 4)
|
|
print
|
|
|
|
print
|
|
|
|
if options.dump_image_list:
|
|
print "Binary Images:"
|
|
for image in crash_log.images:
|
|
print image
|
|
else:
|
|
for exe_file in args:
|
|
|
|
# Create a target from a file and arch
|
|
print "Creating a target for '%s'" % exe_file
|
|
|
|
target = debugger.CreateTarget (exe_file, options.triple, options.platform, options.dependents, error);
|
|
|
|
if target:
|
|
exe_module = None;
|
|
module_count = target.GetNumModules();
|
|
for module_idx in range(module_count):
|
|
module = target.GetModuleAtIndex (module_idx)
|
|
if module_idx == 0:
|
|
exe_module = module
|
|
print "module[%u] = %s" % (module_idx, module)
|
|
|
|
if options.dump_symbols:
|
|
print_module_symbols (module)
|
|
if options.dump_sections:
|
|
print_module_sections (module, options.section_depth)
|
|
if options.sect_data_names:
|
|
for sect_name in options.sect_data_names:
|
|
section = module.FindSection (sect_name)
|
|
if section:
|
|
print_module_section_data (section)
|
|
else:
|
|
print "No section was found in '%s' named '%s'" % (module, sect_name)
|
|
if options.addresses:
|
|
for address in options.addresses:
|
|
if loaded_addresses:
|
|
so_address = target.ResolveLoadAddress (address)
|
|
if so_address:
|
|
print so_address
|
|
so_address_sc = exe_module.ResolveSymbolContextForAddress (so_address, lldb.eSymbolContextEverything);
|
|
print so_address_sc
|
|
else:
|
|
print "error: 0x%8.8x failed to resolve as a load address" % (address)
|
|
else:
|
|
so_address = exe_module.ResolveFileAddress (address)
|
|
|
|
if so_address:
|
|
print so_address
|
|
so_address_sc = exe_module.ResolveSymbolContextForAddress (so_address, lldb.eSymbolContextEverything);
|
|
print so_address_sc
|
|
else:
|
|
print "error: 0x%8.8x failed to resolve as a file address in %s" % (address, exe_module)
|
|
|
|
# text_base_addr = 0x10000
|
|
# load_addr = 0x10bb0
|
|
# text_segment = exe_module.FindSection ("__TEXT")
|
|
# if text_segment:
|
|
# target.SetSectionLoadAddress (text_segment, text_base_addr)
|
|
#
|
|
# load_so_addr = target.ResolveLoadAddress (load_addr)
|
|
#
|
|
# if load_so_addr:
|
|
# sc = target.ResolveSymbolContextForAddress (so_addr, lldb.eSymbolContextEverything);
|
|
# print sc
|
|
# else:
|
|
# print "error: 0x%8.8x failed to resolve as a load address" % (load_addr)
|
|
else:
|
|
print "error: ", error
|
|
|
|
|
|
lldb.SBDebugger.Terminate()
|
|
|