3 # Copyright (C) 2013 The Android Open Source Project
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 """stack symbolizes native crash dumps."""
23 def PrintTraceLines(trace_lines):
24 """Print back trace."""
25 maxlen = max(map(lambda tl: len(tl[1]), trace_lines))
28 print " RELADDR " + "FUNCTION".ljust(maxlen) + " FILE:LINE"
29 for tl in trace_lines:
30 (addr, symbol_with_offset, location) = tl
31 print " %8s %s %s" % (addr, symbol_with_offset.ljust(maxlen), location)
35 def PrintValueLines(value_lines):
36 """Print stack data values."""
37 maxlen = max(map(lambda tl: len(tl[2]), value_lines))
40 print " ADDR VALUE " + "FUNCTION".ljust(maxlen) + " FILE:LINE"
41 for vl in value_lines:
42 (addr, value, symbol_with_offset, location) = vl
43 print " %8s %8s %s %s" % (addr, value, symbol_with_offset.ljust(maxlen), location)
51 def PrintOutput(trace_lines, value_lines, more_info):
53 PrintTraceLines(trace_lines)
55 # TODO(cjhopman): it seems that symbol.SymbolInformation always fails to
56 # find information for addresses in value_lines in chrome libraries, and so
57 # value_lines have little value to us and merely clutter the output.
58 # Since information is sometimes contained in these lines (from system
59 # libraries), don't completely disable them.
61 PrintValueLines(value_lines)
65 print "-----------------------------------------------------\n"
67 def ConvertTrace(lines, more_info):
68 """Convert strings containing native crash to a stack."""
69 process_info_line = re.compile("(pid: [0-9]+, tid: [0-9]+.*)")
70 signal_line = re.compile("(signal [0-9]+ \(.*\).*)")
71 register_line = re.compile("(([ ]*[0-9a-z]{2} [0-9a-f]{8}){4})")
72 thread_line = re.compile("(.*)(\-\-\- ){15}\-\-\-")
73 dalvik_jni_thread_line = re.compile("(\".*\" prio=[0-9]+ tid=[0-9]+ NATIVE.*)")
74 dalvik_native_thread_line = re.compile("(\".*\" sysTid=[0-9]+ nice=[0-9]+.*)")
75 # Note that both trace and value line matching allow for variable amounts of
76 # whitespace (e.g. \t). This is because the we want to allow for the stack
77 # tool to operate on AndroidFeedback provided system logs. AndroidFeedback
78 # strips out double spaces that are found in tombsone files and logcat output.
80 # Examples of matched trace lines include lines from tombstone files like:
81 # #00 pc 001cf42e /data/data/com.my.project/lib/libmyproject.so
82 # #00 pc 001cf42e /data/data/com.my.project/lib/libmyproject.so (symbol)
83 # Or lines from AndroidFeedback crash report system logs like:
84 # 03-25 00:51:05.520 I/DEBUG ( 65): #00 pc 001cf42e /data/data/com.my.project/lib/libmyproject.so
85 # Please note the spacing differences.
86 trace_line = re.compile("(.*)\#(?P<frame>[0-9]+)[ \t]+(..)[ \t]+(0x)?(?P<address>[0-9a-f]{0,8})[ \t]+(?P<lib>[^\r\n \t]*)(?P<symbol_present> \((?P<symbol_name>.*)\))?") # pylint: disable-msg=C6310
87 # Examples of matched value lines include:
88 # bea4170c 8018e4e9 /data/data/com.my.project/lib/libmyproject.so
89 # bea4170c 8018e4e9 /data/data/com.my.project/lib/libmyproject.so (symbol)
90 # 03-25 00:51:05.530 I/DEBUG ( 65): bea4170c 8018e4e9 /data/data/com.my.project/lib/libmyproject.so
91 # Again, note the spacing differences.
92 value_line = re.compile("(.*)([0-9a-f]{8})[ \t]+([0-9a-f]{8})[ \t]+([^\r\n \t]*)( \((.*)\))?")
93 # Lines from 'code around' sections of the output will be matched before
94 # value lines because otheriwse the 'code around' sections will be confused as
98 # 801cf40c ffffc4cc 00b2f2c5 00b2f1c7 00c1e1a8
99 # 03-25 00:51:05.530 I/DEBUG ( 65): 801cf40c ffffc4cc 00b2f2c5 00b2f1c7 00c1e1a8
100 code_line = re.compile("(.*)[ \t]*[a-f0-9]{8}[ \t]*[a-f0-9]{8}[ \t]*[a-f0-9]{8}[ \t]*[a-f0-9]{8}[ \t]*[a-f0-9]{8}[ \t]*[ \r\n]") # pylint: disable-msg=C6310
106 # It is faster to get symbol information with a single call rather than with
107 # separate calls for each line. Since symbol.SymbolInformation caches results,
108 # we can extract all the addresses that we will want symbol information for
109 # from the log and call symbol.SymbolInformation so that the results are
110 # cached in the following lookups.
113 line = unicode(ln, errors='ignore')
114 lib, address = None, None
116 match = trace_line.match(line)
118 address, lib = match.group('address', 'lib')
120 match = value_line.match(line)
121 if match and not code_line.match(line):
122 (_0, _1, address, lib, _2, _3) = match.groups()
125 code_addresses.setdefault(lib, set()).add(address)
127 for lib in code_addresses:
128 symbol.SymbolInformationForSet(
129 symbol.TranslateLibPath(lib), code_addresses[lib], more_info)
132 # AndroidFeedback adds zero width spaces into its crash reports. These
133 # should be removed or the regular expresssions will fail to match.
134 line = unicode(ln, errors='ignore')
135 process_header = process_info_line.search(line)
136 signal_header = signal_line.search(line)
137 register_header = register_line.search(line)
138 thread_header = thread_line.search(line)
139 dalvik_jni_thread_header = dalvik_jni_thread_line.search(line)
140 dalvik_native_thread_header = dalvik_native_thread_line.search(line)
141 if process_header or signal_header or register_header or thread_header \
142 or dalvik_jni_thread_header or dalvik_native_thread_header:
143 if trace_lines or value_lines:
144 PrintOutput(trace_lines, value_lines, more_info)
150 print process_header.group(1)
152 print signal_header.group(1)
154 print register_header.group(1)
156 print thread_header.group(1)
157 if dalvik_jni_thread_header:
158 print dalvik_jni_thread_header.group(1)
159 if dalvik_native_thread_header:
160 print dalvik_native_thread_header.group(1)
162 if trace_line.match(line):
163 match = trace_line.match(line)
164 frame, code_addr, area, symbol_present, symbol_name = match.group(
165 'frame', 'address', 'lib', 'symbol_present', 'symbol_name')
167 if frame <= last_frame and (trace_lines or value_lines):
168 PrintOutput(trace_lines, value_lines, more_info)
174 if area == UNKNOWN or area == HEAP or area == STACK:
175 trace_lines.append((code_addr, "", area))
177 # If a calls b which further calls c and c is inlined to b, we want to
178 # display "a -> b -> c" in the stack trace instead of just "a -> c"
179 info = symbol.SymbolInformation(area, code_addr, more_info)
180 nest_count = len(info) - 1
181 for (source_symbol, source_location, object_symbol_with_offset) in info:
182 if not source_symbol:
184 source_symbol = symbol.CallCppFilt(symbol_name)
186 source_symbol = UNKNOWN
187 if not source_location:
188 source_location = area
190 nest_count = nest_count - 1
191 trace_lines.append(("v------>", source_symbol, source_location))
193 if not object_symbol_with_offset:
194 object_symbol_with_offset = source_symbol
195 trace_lines.append((code_addr,
196 object_symbol_with_offset,
198 if code_line.match(line):
199 # Code lines should be ignored. If this were exluded the 'code around'
200 # sections would trigger value_line matches.
202 if value_line.match(line):
203 match = value_line.match(line)
204 (unused_, addr, value, area, symbol_present, symbol_name) = match.groups()
205 if area == UNKNOWN or area == HEAP or area == STACK or not area:
206 value_lines.append((addr, value, "", area))
208 info = symbol.SymbolInformation(area, value, more_info)
209 (source_symbol, source_location, object_symbol_with_offset) = info.pop()
210 if not source_symbol:
212 source_symbol = symbol.CallCppFilt(symbol_name)
214 source_symbol = UNKNOWN
215 if not source_location:
216 source_location = area
217 if not object_symbol_with_offset:
218 object_symbol_with_offset = source_symbol
219 value_lines.append((addr,
221 object_symbol_with_offset,
224 PrintOutput(trace_lines, value_lines, more_info)