import codecs
sys.stdout = codecs.getwriter("utf-8")(sys.stdout)
-last_access_address = None
-last_access_tag = None
-
# Below, a parser for a subset of ELF. It only supports 64 bit, little-endian,
# and only parses what is necessary to find the build ids. It uses a memoryview
# into an mmap to avoid copying.
self.__index = {}
self.__link_prefixes = []
self.__html = False
+ self.__last_access_address = None
+ self.__last_access_tag = None
def enable_html(self, enable):
self.__html = enable
if bid is not None:
self.__index[bid] = filename
-def symbolize_line(line, symbolizer_path):
- #0 0x7f6e35cf2e45 (/blah/foo.so+0x11fe45) (BuildId: 4abce4cd41ea5c2f34753297b7e774d9)
- match = re.match(r'^(.*?)#([0-9]+)( *)(0x[0-9a-f]*) *\((.*)\+(0x[0-9a-f]+)\)'
- r'(?:\s*\(BuildId: ([0-9a-f]+)\))?', line, re.UNICODE)
- if match:
- frameno = match.group(2)
- binary = match.group(5)
- addr = int(match.group(6), 16)
- buildid = match.group(7)
-
- frames = list(symbolizer.iter_call_stack(binary, buildid, addr))
-
- if len(frames) > 0:
- symbolizer.print(
- symbolizer.maybe_escape(
- "%s#%s%s%s in " % (match.group(1), match.group(2), match.group(3),
- frames[0][0])
- ) + symbolizer.maybe_linkify(frames[0][1]),
- escape=False)
- for i in range(1, len(frames)):
- space1 = ' ' * match.end(1)
- space2 = ' ' * (match.start(4) - match.end(1) - 2)
- symbolizer.print(
- symbolizer.maybe_escape("%s->%s%s in " % (space1, space2, frames[i][0]))
- + symbolizer.maybe_linkify(frames[i][1]), escape=False)
+ def symbolize_line(self, line):
+ #0 0x7f6e35cf2e45 (/blah/foo.so+0x11fe45) (BuildId: 4abce4cd41ea5c2f34753297b7e774d9)
+ match = re.match(r'^(.*?)#([0-9]+)( *)(0x[0-9a-f]*) *\((.*)\+(0x[0-9a-f]+)\)'
+ r'(?:\s*\(BuildId: ([0-9a-f]+)\))?', line, re.UNICODE)
+ if match:
+ frameno = match.group(2)
+ binary = match.group(5)
+ addr = int(match.group(6), 16)
+ buildid = match.group(7)
+
+ frames = list(self.iter_call_stack(binary, buildid, addr))
+
+ if len(frames) > 0:
+ self.print(
+ self.maybe_escape(
+ "%s#%s%s%s in " % (match.group(1), match.group(2), match.group(3),
+ frames[0][0])
+ ) + self.maybe_linkify(frames[0][1]),
+ escape=False)
+ for i in range(1, len(frames)):
+ space1 = ' ' * match.end(1)
+ space2 = ' ' * (match.start(4) - match.end(1) - 2)
+ self.print(
+ self.maybe_escape("%s->%s%s in " % (space1, space2, frames[i][0]))
+ + self.maybe_linkify(frames[i][1]), escape=False)
+ else:
+ self.print(line.rstrip())
else:
- symbolizer.print(line.rstrip())
- else:
- symbolizer.print(line.rstrip())
-
-def save_access_address(line):
- global last_access_address, last_access_tag
- match = re.match(r'^(.*?)HWAddressSanitizer: tag-mismatch on address (0x[0-9a-f]+) ', line, re.UNICODE)
- if match:
- last_access_address = int(match.group(2), 16)
- match = re.match(r'^(.*?) of size [0-9]+ at 0x[0-9a-f]* tags: ([0-9a-f]+)/[0-9a-f]+ \(ptr/mem\)', line, re.UNICODE)
- if match:
- last_access_tag = int(match.group(2), 16)
-
-def process_stack_history(line, symbolizer, ignore_tags=False):
- if last_access_address is None or last_access_tag is None:
- return
- if re.match(r'Previously allocated frames:', line, re.UNICODE):
- return True
- pc_mask = (1 << 48) - 1
- fp_mask = (1 << 20) - 1
- # record_addr:0x1234ABCD record:0x1234ABCD (/path/to/binary+0x1234ABCD) (BuildId: 4abce4cd41ea5c2f34753297b7e774d9)
- match = re.match(r'^(.*?)record_addr:(0x[0-9a-f]+) +record:(0x[0-9a-f]+) +\((.*)\+(0x[0-9a-f]+)\)'
- r'(?:\s*\(BuildId: ([0-9a-f]+)\))?', line, re.UNICODE)
- if match:
- record_addr = int(match.group(2), 16)
- record = int(match.group(3), 16)
- binary = match.group(4)
- addr = int(match.group(5), 16)
- buildid = match.group(6)
- base_tag = (record_addr >> 3) & 0xFF
- fp = (record >> 48) << 4
- pc = record & pc_mask
-
- for local in symbolizer.iter_locals(binary, addr, buildid):
- frame_offset = local[3]
- size = local[4]
- if frame_offset is None or size is None:
- continue
- obj_offset = (last_access_address - fp - frame_offset) & fp_mask
- if obj_offset >= size:
- continue
- tag_offset = local[5]
- if not ignore_tags and (tag_offset is None or base_tag ^ tag_offset != last_access_tag):
- continue
- symbolizer.print('')
- symbolizer.print('Potentially referenced stack object:')
- symbolizer.print(' %d bytes inside variable "%s" in stack frame of function "%s"' % (obj_offset, local[2], local[0]))
- symbolizer.print(' at %s' % (local[1],))
- return True
- return False
-
-parser = argparse.ArgumentParser()
-parser.add_argument('-d', action='store_true')
-parser.add_argument('-v', action='store_true')
-parser.add_argument('--ignore-tags', action='store_true')
-parser.add_argument('--symbols', action='append')
-parser.add_argument('--source', action='append')
-parser.add_argument('--index', action='store_true')
-parser.add_argument('--symbolizer')
-parser.add_argument('--linkify', type=str)
-parser.add_argument('--html', action='store_true')
-parser.add_argument('args', nargs=argparse.REMAINDER)
-args = parser.parse_args()
-
-# Unstripped binaries location.
-binary_prefixes = args.symbols or []
-if not binary_prefixes:
- if 'ANDROID_PRODUCT_OUT' in os.environ:
- product_out = os.path.join(os.environ['ANDROID_PRODUCT_OUT'], 'symbols')
- binary_prefixes.append(product_out)
- binary_prefixes.append('/')
-
-for p in binary_prefixes:
- if not os.path.isdir(p):
- print("Symbols path does not exist or is not a directory:", p, file=sys.stderr)
- sys.exit(1)
-
-# Source location.
-paths_to_cut = args.source or []
-if not paths_to_cut:
- paths_to_cut.append(os.getcwd() + '/')
- if 'ANDROID_BUILD_TOP' in os.environ:
- paths_to_cut.append(os.environ['ANDROID_BUILD_TOP'] + '/')
-
-# llvm-symbolizer binary.
-# 1. --symbolizer flag
-# 2. environment variable
-# 3. unsuffixed binary in the current directory
-# 4. if inside Android platform, prebuilt binary at a known path
-# 5. first "llvm-symbolizer", then "llvm-symbolizer-$VER" with the
-# highest available version in $PATH
-symbolizer_path = args.symbolizer
-if not symbolizer_path:
- if 'LLVM_SYMBOLIZER_PATH' in os.environ:
- symbolizer_path = os.environ['LLVM_SYMBOLIZER_PATH']
- elif 'HWASAN_SYMBOLIZER_PATH' in os.environ:
- symbolizer_path = os.environ['HWASAN_SYMBOLIZER_PATH']
-
-if not symbolizer_path:
- s = os.path.join(os.path.dirname(sys.argv[0]), 'llvm-symbolizer')
- if os.path.exists(s):
- symbolizer_path = s
-
-if not symbolizer_path:
- if 'ANDROID_BUILD_TOP' in os.environ:
- s = os.path.join(os.environ['ANDROID_BUILD_TOP'], 'prebuilts/clang/host/linux-x86/llvm-binutils-stable/llvm-symbolizer')
- if os.path.exists(s):
- symbolizer_path = s
-
-if not symbolizer_path:
- for path in os.environ["PATH"].split(os.pathsep):
- p = os.path.join(path, 'llvm-symbolizer')
- if os.path.exists(p):
- symbolizer_path = p
- break
+ self.print(line.rstrip())
+
+ def save_access_address(self, line):
+ match = re.match(r'^(.*?)HWAddressSanitizer: tag-mismatch on address (0x[0-9a-f]+) ', line, re.UNICODE)
+ if match:
+ self.__last_access_address = int(match.group(2), 16)
+ match = re.match(r'^(.*?) of size [0-9]+ at 0x[0-9a-f]* tags: ([0-9a-f]+)/[0-9a-f]+ \(ptr/mem\)', line, re.UNICODE)
+ if match:
+ self.__last_access_tag = int(match.group(2), 16)
+
+ def process_stack_history(self, line, ignore_tags=False):
+ if self.__last_access_address is None or self.__last_access_tag is None:
+ return
+ if re.match(r'Previously allocated frames:', line, re.UNICODE):
+ return True
+ pc_mask = (1 << 48) - 1
+ fp_mask = (1 << 20) - 1
+ # record_addr:0x1234ABCD record:0x1234ABCD (/path/to/binary+0x1234ABCD) (BuildId: 4abce4cd41ea5c2f34753297b7e774d9)
+ match = re.match(r'^(.*?)record_addr:(0x[0-9a-f]+) +record:(0x[0-9a-f]+) +\((.*)\+(0x[0-9a-f]+)\)'
+ r'(?:\s*\(BuildId: ([0-9a-f]+)\))?', line, re.UNICODE)
+ if match:
+ record_addr = int(match.group(2), 16)
+ record = int(match.group(3), 16)
+ binary = match.group(4)
+ addr = int(match.group(5), 16)
+ buildid = match.group(6)
+ base_tag = (record_addr >> 3) & 0xFF
+ fp = (record >> 48) << 4
+ pc = record & pc_mask
+
+ for local in self.iter_locals(binary, addr, buildid):
+ frame_offset = local[3]
+ size = local[4]
+ if frame_offset is None or size is None:
+ continue
+ obj_offset = (self.__last_access_address - fp - frame_offset) & fp_mask
+ if obj_offset >= size:
+ continue
+ tag_offset = local[5]
+ if not ignore_tags and (tag_offset is None or base_tag ^ tag_offset != self.__last_access_tag):
+ continue
+ self.print('')
+ self.print('Potentially referenced stack object:')
+ self.print(' %d bytes inside variable "%s" in stack frame of function "%s"' % (obj_offset, local[2], local[0]))
+ self.print(' at %s' % (local[1],))
+ return True
+ return False
def extract_version(s):
idx = s.rfind('-')
x = float(s[idx + 1:])
return x
-if not symbolizer_path:
- for path in os.environ["PATH"].split(os.pathsep):
- candidates = glob.glob(os.path.join(path, 'llvm-symbolizer-*'))
- if len(candidates) > 0:
- candidates.sort(key = extract_version, reverse = True)
- symbolizer_path = candidates[0]
- break
-
-if not os.path.exists(symbolizer_path):
- print("Symbolizer path does not exist:", symbolizer_path, file=sys.stderr)
- sys.exit(1)
-
-if args.v:
- print("Looking for symbols in:")
- for s in binary_prefixes:
- print(" %s" % (s,))
- print("Stripping source path prefixes:")
- for s in paths_to_cut:
- print(" %s" % (s,))
- print("Using llvm-symbolizer binary in:\n %s" % (symbolizer_path,))
- print()
-
-symbolizer = Symbolizer(symbolizer_path, binary_prefixes, paths_to_cut)
-symbolizer.enable_html(args.html)
-symbolizer.enable_logging(args.d)
-if args.index:
- symbolizer.build_index()
-
-if args.linkify:
- if not args.html:
- print('Need --html to --linkify', file=sys.stderr)
+def main():
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-d', action='store_true')
+ parser.add_argument('-v', action='store_true')
+ parser.add_argument('--ignore-tags', action='store_true')
+ parser.add_argument('--symbols', action='append')
+ parser.add_argument('--source', action='append')
+ parser.add_argument('--index', action='store_true')
+ parser.add_argument('--symbolizer')
+ parser.add_argument('--linkify', type=str)
+ parser.add_argument('--html', action='store_true')
+ parser.add_argument('args', nargs=argparse.REMAINDER)
+ args = parser.parse_args()
+
+ # Unstripped binaries location.
+ binary_prefixes = args.symbols or []
+ if not binary_prefixes:
+ if 'ANDROID_PRODUCT_OUT' in os.environ:
+ product_out = os.path.join(os.environ['ANDROID_PRODUCT_OUT'], 'symbols')
+ binary_prefixes.append(product_out)
+ binary_prefixes.append('/')
+
+ for p in binary_prefixes:
+ if not os.path.isdir(p):
+ print("Symbols path does not exist or is not a directory:", p, file=sys.stderr)
+ sys.exit(1)
+
+ # Source location.
+ paths_to_cut = args.source or []
+ if not paths_to_cut:
+ paths_to_cut.append(os.getcwd() + '/')
+ if 'ANDROID_BUILD_TOP' in os.environ:
+ paths_to_cut.append(os.environ['ANDROID_BUILD_TOP'] + '/')
+
+ # llvm-symbolizer binary.
+ # 1. --symbolizer flag
+ # 2. environment variable
+ # 3. unsuffixed binary in the current directory
+ # 4. if inside Android platform, prebuilt binary at a known path
+ # 5. first "llvm-symbolizer", then "llvm-symbolizer-$VER" with the
+ # highest available version in $PATH
+ symbolizer_path = args.symbolizer
+ if not symbolizer_path:
+ if 'LLVM_SYMBOLIZER_PATH' in os.environ:
+ symbolizer_path = os.environ['LLVM_SYMBOLIZER_PATH']
+ elif 'HWASAN_SYMBOLIZER_PATH' in os.environ:
+ symbolizer_path = os.environ['HWASAN_SYMBOLIZER_PATH']
+
+ if not symbolizer_path:
+ s = os.path.join(os.path.dirname(sys.argv[0]), 'llvm-symbolizer')
+ if os.path.exists(s):
+ symbolizer_path = s
+
+ if not symbolizer_path:
+ if 'ANDROID_BUILD_TOP' in os.environ:
+ s = os.path.join(os.environ['ANDROID_BUILD_TOP'], 'prebuilts/clang/host/linux-x86/llvm-binutils-stable/llvm-symbolizer')
+ if os.path.exists(s):
+ symbolizer_path = s
+
+ if not symbolizer_path:
+ for path in os.environ["PATH"].split(os.pathsep):
+ p = os.path.join(path, 'llvm-symbolizer')
+ if os.path.exists(p):
+ symbolizer_path = p
+ break
+
+ if not symbolizer_path:
+ for path in os.environ["PATH"].split(os.pathsep):
+ candidates = glob.glob(os.path.join(path, 'llvm-symbolizer-*'))
+ if len(candidates) > 0:
+ candidates.sort(key = extract_version, reverse = True)
+ symbolizer_path = candidates[0]
+ break
+
+ if not os.path.exists(symbolizer_path):
+ print("Symbolizer path does not exist:", symbolizer_path, file=sys.stderr)
sys.exit(1)
- symbolizer.read_linkify(args.linkify)
-
-for line in sys.stdin:
- if sys.version_info.major < 3:
- line = line.decode('utf-8')
- save_access_address(line)
- if process_stack_history(line, symbolizer, ignore_tags=args.ignore_tags):
- continue
- symbolize_line(line, symbolizer_path)
+
+ if args.v:
+ print("Looking for symbols in:")
+ for s in binary_prefixes:
+ print(" %s" % (s,))
+ print("Stripping source path prefixes:")
+ for s in paths_to_cut:
+ print(" %s" % (s,))
+ print("Using llvm-symbolizer binary in:\n %s" % (symbolizer_path,))
+ print()
+
+ symbolizer = Symbolizer(symbolizer_path, binary_prefixes, paths_to_cut)
+ symbolizer.enable_html(args.html)
+ symbolizer.enable_logging(args.d)
+ if args.index:
+ symbolizer.build_index()
+
+ if args.linkify:
+ if not args.html:
+ print('Need --html to --linkify', file=sys.stderr)
+ sys.exit(1)
+ symbolizer.read_linkify(args.linkify)
+
+ for line in sys.stdin:
+ if sys.version_info.major < 3:
+ line = line.decode('utf-8')
+ symbolizer.save_access_address(line)
+ if symbolizer.process_stack_history(line, ignore_tags=args.ignore_tags):
+ continue
+ symbolizer.symbolize_line(line)
+
+
+if __name__ == '__main__':
+ main()
projects / platform / upstream / llvm.git / commitdiff