diff options
Diffstat (limited to 'lib/asan/scripts/asan_symbolize.py')
| -rwxr-xr-x | lib/asan/scripts/asan_symbolize.py | 72 |
1 files changed, 41 insertions, 31 deletions
diff --git a/lib/asan/scripts/asan_symbolize.py b/lib/asan/scripts/asan_symbolize.py index 5fca136b6950..59fceaaed814 100755 --- a/lib/asan/scripts/asan_symbolize.py +++ b/lib/asan/scripts/asan_symbolize.py @@ -11,11 +11,9 @@ import argparse import bisect import getopt import os -import pty import re import subprocess import sys -import termios symbolizers = {} DEBUG = False @@ -171,6 +169,9 @@ class UnbufferedLineConverter(object): output. Uses pty to trick the child into providing unbuffered output. """ def __init__(self, args, close_stderr=False): + # Local imports so that the script can start on Windows. + import pty + import termios pid, fd = pty.fork() if pid == 0: # We're the child. Transfer control to command. @@ -341,17 +342,23 @@ class BreakpadSymbolizer(Symbolizer): class SymbolizationLoop(object): def __init__(self, binary_name_filter=None, dsym_hint_producer=None): - # Used by clients who may want to supply a different binary name. - # E.g. in Chrome several binaries may share a single .dSYM. - self.binary_name_filter = binary_name_filter - self.dsym_hint_producer = dsym_hint_producer - self.system = os.uname()[0] - if self.system not in ['Linux', 'Darwin', 'FreeBSD']: - raise Exception('Unknown system') - self.llvm_symbolizers = {} - self.last_llvm_symbolizer = None - self.dsym_hints = set([]) - self.frame_no = 0 + if sys.platform == 'win32': + # ASan on Windows uses dbghelp.dll to symbolize in-process, which works + # even in sandboxed processes. Nothing needs to be done here. + self.process_line = self.process_line_echo + else: + # Used by clients who may want to supply a different binary name. + # E.g. in Chrome several binaries may share a single .dSYM. + self.binary_name_filter = binary_name_filter + self.dsym_hint_producer = dsym_hint_producer + self.system = os.uname()[0] + if self.system not in ['Linux', 'Darwin', 'FreeBSD']: + raise Exception('Unknown system') + self.llvm_symbolizers = {} + self.last_llvm_symbolizer = None + self.dsym_hints = set([]) + self.frame_no = 0 + self.process_line = self.process_line_posix def symbolize_address(self, addr, binary, offset): # On non-Darwin (i.e. on platforms without .dSYM debug info) always use @@ -366,12 +373,12 @@ class SymbolizationLoop(object): # 3. otherwise create a new symbolizer and pass all currently known # .dSYM hints to it. if not binary in self.llvm_symbolizers: - use_last_symbolizer = True + use_new_symbolizer = True if self.system == 'Darwin' and self.dsym_hint_producer: dsym_hints_for_binary = set(self.dsym_hint_producer(binary)) - use_last_symbolizer = bool(dsym_hints_for_binary - self.dsym_hints) + use_new_symbolizer = bool(dsym_hints_for_binary - self.dsym_hints) self.dsym_hints |= dsym_hints_for_binary - if self.last_llvm_symbolizer and use_last_symbolizer: + if self.last_llvm_symbolizer and not use_new_symbolizer: self.llvm_symbolizers[binary] = self.last_llvm_symbolizer else: self.last_llvm_symbolizer = LLVMSymbolizerFactory( @@ -405,14 +412,14 @@ class SymbolizationLoop(object): def process_logfile(self): self.frame_no = 0 - while True: - line = logfile.readline() - if not line: - break + for line in logfile: processed = self.process_line(line) print '\n'.join(processed) - def process_line(self, line): + def process_line_echo(self, line): + return [line.rstrip()] + + def process_line_posix(self, line): self.current_line = line.rstrip() #0 0x7f6e35cf2e45 (/blah/foo.so+0x11fe45) stack_trace_line_format = ( @@ -437,20 +444,23 @@ class SymbolizationLoop(object): if __name__ == '__main__': - parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, - description='ASan symbolization script', - epilog='''Example of use: - asan_symbolize.py -c "$HOME/opt/cross/bin/arm-linux-gnueabi-" -s "$HOME/SymbolFiles" < asan.log''') + parser = argparse.ArgumentParser( + formatter_class=argparse.RawDescriptionHelpFormatter, + description='ASan symbolization script', + epilog='Example of use:\n' + 'asan_symbolize.py -c "$HOME/opt/cross/bin/arm-linux-gnueabi-" ' + '-s "$HOME/SymbolFiles" < asan.log') parser.add_argument('path_to_cut', nargs='*', - help='pattern to be cut from the result file path ') + help='pattern to be cut from the result file path ') parser.add_argument('-d','--demangle', action='store_true', - help='demangle function names') + help='demangle function names') parser.add_argument('-s', metavar='SYSROOT', - help='set path to sysroot for sanitized binaries') + help='set path to sysroot for sanitized binaries') parser.add_argument('-c', metavar='CROSS_COMPILE', - help='set prefix for binutils') - parser.add_argument('-l','--logfile', default=sys.stdin, type=argparse.FileType('r'), - help='set log file name to parse, default is stdin') + help='set prefix for binutils') + parser.add_argument('-l','--logfile', default=sys.stdin, + type=argparse.FileType('r'), + help='set log file name to parse, default is stdin') args = parser.parse_args() if args.path_to_cut: fix_filename_patterns = args.path_to_cut |