#!/usr/bin/env python # # Copyright (C) 2013 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """stack symbolizes native crash dumps.""" import re import symbol def ConvertTrace(lines): tracer = TraceConverter() print "Reading symbols from", symbol.SYMBOLS_DIR tracer.ConvertTrace(lines) class TraceConverter: process_info_line = re.compile("(pid: [0-9]+, tid: [0-9]+.*)") abi_line = re.compile("(ABI: \'(.*)\')") signal_line = re.compile("(signal [0-9]+ \(.*\).*)") abort_message_line = re.compile("(Abort message: '.*')") thread_line = re.compile("(.*)(\-\-\- ){15}\-\-\-") dalvik_jni_thread_line = re.compile("(\".*\" prio=[0-9]+ tid=[0-9]+ NATIVE.*)") dalvik_native_thread_line = re.compile("(\".*\" sysTid=[0-9]+ nice=[0-9]+.*)") register_line = re.compile("$a") trace_line = re.compile("$a") value_line = re.compile("$a") code_line = re.compile("$a") trace_lines = [] value_lines = [] last_frame = -1 width = "{8}" def __init__(self): pass def UpdateABIRegexes(self): if symbol.ARCH == "arm64" or symbol.ARCH == "mips64" or symbol.ARCH == "x86_64": self.width = "{16}" self.register_line = re.compile("(([ ]*[0-9a-z]{2} +[0-9a-f]" + self.width + "){4})") # Note that both trace and value line matching allow for variable amounts of # whitespace (e.g. \t). This is because the we want to allow for the stack # tool to operate on AndroidFeedback provided system logs. AndroidFeedback # strips out double spaces that are found in tombsone files and logcat output. # # Examples of matched trace lines include lines from tombstone files like: # #00 pc 001cf42e /data/data/com.my.project/lib/libmyproject.so # # Or lines from AndroidFeedback crash report system logs like: # 03-25 00:51:05.520 I/DEBUG ( 65): #00 pc 001cf42e /data/data/com.my.project/lib/libmyproject.so # Please note the spacing differences. self.trace_line = re.compile("(.*)\#([0-9]+)[ \t]+(..)[ \t]+([0-9a-f]" + self.width + ")[ \t]+([^\r\n \t]*)( \((.*)\))?") # pylint: disable-msg=C6310 # Examples of matched value lines include: # bea4170c 8018e4e9 /data/data/com.my.project/lib/libmyproject.so # bea4170c 8018e4e9 /data/data/com.my.project/lib/libmyproject.so (symbol) # 03-25 00:51:05.530 I/DEBUG ( 65): bea4170c 8018e4e9 /data/data/com.my.project/lib/libmyproject.so # Again, note the spacing differences. self.value_line = re.compile("(.*)([0-9a-f]" + self.width + ")[ \t]+([0-9a-f]" + self.width + ")[ \t]+([^\r\n \t]*)( \((.*)\))?") # Lines from 'code around' sections of the output will be matched before # value lines because otheriwse the 'code around' sections will be confused as # value lines. # # Examples include: # 801cf40c ffffc4cc 00b2f2c5 00b2f1c7 00c1e1a8 # 03-25 00:51:05.530 I/DEBUG ( 65): 801cf40c ffffc4cc 00b2f2c5 00b2f1c7 00c1e1a8 self.code_line = re.compile("(.*)[ \t]*[a-f0-9]" + self.width + "[ \t]*[a-f0-9]" + self.width + "[ \t]*[a-f0-9]" + self.width + "[ \t]*[a-f0-9]" + self.width + "[ \t]*[a-f0-9]" + self.width + "[ \t]*[ \r\n]") # pylint: disable-msg=C6310 def CleanLine(self, ln): # AndroidFeedback adds zero width spaces into its crash reports. These # should be removed or the regular expresssions will fail to match. return unicode(ln, errors='ignore') def PrintTraceLines(self, trace_lines): """Print back trace.""" maxlen = max(map(lambda tl: len(tl[1]), trace_lines)) spacing = "" if symbol.ARCH == "arm64" or symbol.ARCH == "mips64" or symbol.ARCH == "x86_64": spacing = " " print print "Stack Trace:" print " RELADDR " + spacing + "FUNCTION".ljust(maxlen) + " FILE:LINE" for tl in self.trace_lines: (addr, symbol_with_offset, location) = tl print " %8s %s %s" % (addr, symbol_with_offset.ljust(maxlen), location) return def PrintValueLines(self, value_lines): """Print stack data values.""" maxlen = max(map(lambda tl: len(tl[2]), self.value_lines)) print print "Stack Data:" print " ADDR VALUE " + "FUNCTION".ljust(maxlen) + " FILE:LINE" for vl in self.value_lines: (addr, value, symbol_with_offset, location) = vl print " %8s %8s %s %s" % (addr, value, symbol_with_offset.ljust(maxlen), location) return def PrintOutput(self, trace_lines, value_lines): if self.trace_lines: self.PrintTraceLines(self.trace_lines) if self.value_lines: self.PrintValueLines(self.value_lines) def PrintDivider(self): print print "-----------------------------------------------------\n" def ConvertTrace(self, lines): lines = map(self.CleanLine, lines) for line in lines: self.ProcessLine(line) self.PrintOutput(self.trace_lines, self.value_lines) def ProcessLine(self, line): process_header = self.process_info_line.search(line) signal_header = self.signal_line.search(line) abort_message_header = self.abort_message_line.search(line) thread_header = self.thread_line.search(line) register_header = self.register_line.search(line) abi_header = self.abi_line.search(line) dalvik_jni_thread_header = self.dalvik_jni_thread_line.search(line) dalvik_native_thread_header = self.dalvik_native_thread_line.search(line) if process_header or signal_header or abort_message_header or thread_header or abi_header or \ register_header or dalvik_jni_thread_header or dalvik_native_thread_header: if self.trace_lines or self.value_lines: self.PrintOutput(self.trace_lines, self.value_lines) self.PrintDivider() self.trace_lines = [] self.value_lines = [] self.last_frame = -1 if process_header: print process_header.group(1) if signal_header: print signal_header.group(1) if abort_message_header: print abort_message_header.group(1) if register_header: print register_header.group(1) if thread_header: print thread_header.group(1) if dalvik_jni_thread_header: print dalvik_jni_thread_header.group(1) if dalvik_native_thread_header: print dalvik_native_thread_header.group(1) if abi_header: print abi_header.group(1) symbol.ARCH = abi_header.group(2) self.UpdateABIRegexes() return if self.trace_line.match(line): match = self.trace_line.match(line) (unused_0, frame, unused_1, code_addr, area, symbol_present, symbol_name) = match.groups() if frame <= self.last_frame and (self.trace_lines or self.value_lines): self.PrintOutput(self.trace_lines, self.value_lines) self.PrintDivider() self.trace_lines = [] self.value_lines = [] self.last_frame = frame if area == "" or area == "[heap]" or area == "[stack]": self.trace_lines.append((code_addr, "", area)) else: # If a calls b which further calls c and c is inlined to b, we want to # display "a -> b -> c" in the stack trace instead of just "a -> c" info = symbol.SymbolInformation(area, code_addr) nest_count = len(info) - 1 for (source_symbol, source_location, object_symbol_with_offset) in info: if not source_symbol: if symbol_present: source_symbol = symbol.CallCppFilt(symbol_name) else: source_symbol = "" if not source_location: source_location = area if nest_count > 0: nest_count = nest_count - 1 arrow = "v------>" if symbol.ARCH == "arm64" or symbol.ARCH == "mips64" or symbol.ARCH == "x86_64": arrow = "v-------------->" self.trace_lines.append((arrow, source_symbol, source_location)) else: if not object_symbol_with_offset: object_symbol_with_offset = source_symbol self.trace_lines.append((code_addr, object_symbol_with_offset, source_location)) if self.code_line.match(line): # Code lines should be ignored. If this were exluded the 'code around' # sections would trigger value_line matches. return if self.value_line.match(line): match = self.value_line.match(line) (unused_, addr, value, area, symbol_present, symbol_name) = match.groups() if area == "" or area == "[heap]" or area == "[stack]" or not area: self.value_lines.append((addr, value, "", area)) else: info = symbol.SymbolInformation(area, value) (source_symbol, source_location, object_symbol_with_offset) = info.pop() if not source_symbol: if symbol_present: source_symbol = symbol.CallCppFilt(symbol_name) else: source_symbol = "" if not source_location: source_location = area if not object_symbol_with_offset: object_symbol_with_offset = source_symbol self.value_lines.append((addr, value, object_symbol_with_offset, source_location)) #self.PrintOutput(self.trace_lines, self.value_lines)