| # Copyright 2018 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import os |
| import subprocess |
| |
| from common import SDK_ROOT |
| |
| |
| def RunSymbolizer(input_pipe, build_ids_files): |
| """Starts a symbolizer process. |
| |
| input_pipe: Input pipe to be symbolized. |
| build_ids_file: Path to the ids.txt file which maps build IDs to |
| unstripped binaries on the filesystem. |
| Returns a Popen object for the started process.""" |
| |
| llvm_symbolizer_path = os.path.join(SDK_ROOT, os.pardir, os.pardir, |
| 'llvm-build', 'Release+Asserts', 'bin', |
| 'llvm-symbolizer') |
| symbolizer = os.path.join(SDK_ROOT, 'tools', 'symbolize') |
| symbolizer_cmd = [symbolizer, |
| '-ids-rel', '-llvm-symbolizer', llvm_symbolizer_path, |
| '-build-id-dir', os.path.join(SDK_ROOT, '.build-id')] |
| for build_ids_file in build_ids_files: |
| symbolizer_cmd.extend(['-ids', build_ids_file]) |
| |
| logging.info('Running "%s".' % ' '.join(symbolizer_cmd)) |
| return subprocess.Popen(symbolizer_cmd, stdout=subprocess.PIPE, |
| stdin=input_pipe, close_fds=True) |
| |
| |
| def SymbolizerFilter(input_pipe, build_ids_files): |
| """Symbolizes an output stream from a process. |
| |
| input_pipe: Input pipe to be symbolized. |
| build_ids_file: Path to the ids.txt file which maps build IDs to |
| unstripped binaries on the filesystem. |
| Returns a generator that yields symbolized process output.""" |
| |
| symbolizer_proc = RunSymbolizer(input_pipe, build_ids_files) |
| |
| while True: |
| line = symbolizer_proc.stdout.readline() |
| if not line: |
| break |
| yield line |
| |
| symbolizer_proc.wait() |