#!/usr/bin/env python
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# Copyright 2016 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# This script executes dumpcpp.js, collects all dumped C++ symbols,
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# and merges them back into v8 log.
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import os
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import platform
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import re
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import subprocess
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import sys
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def is_file_executable(fPath):
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return os.path.isfile(fPath) and os.access(fPath, os.X_OK)
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if __name__ == '__main__':
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JS_FILES = ['splaytree.js', 'codemap.js', 'csvparser.js', 'consarray.js',
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'profile.js', 'logreader.js', 'arguments.js', 'tickprocessor.js',
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'SourceMap.js', 'dumpcpp.js', 'dumpcpp-driver.js']
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tools_path = os.path.dirname(os.path.realpath(__file__))
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on_windows = platform.system() == 'Windows'
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JS_FILES = [os.path.join(tools_path, f) for f in JS_FILES]
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args = []
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log_file = 'v8.log'
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debug = False
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for arg in sys.argv[1:]:
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if arg == '--debug':
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debug = True
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continue
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args.append(arg)
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if not arg.startswith('-'):
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log_file = arg
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if on_windows:
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args.append('--windows')
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with open(log_file, 'r') as f:
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lines = f.readlines()
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d8_line = re.search(',\"(.*d8)', ''.join(lines))
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if d8_line:
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d8_exec = d8_line.group(1)
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if not is_file_executable(d8_exec):
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print 'd8 binary path found in {} is not executable.'.format(log_file)
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sys.exit(-1)
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else:
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print 'No d8 binary path found in {}.'.format(log_file)
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sys.exit(-1)
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args = [d8_exec] + JS_FILES + ['--'] + args
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with open(log_file) as f:
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sp = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
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stdin=f)
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out, err = sp.communicate()
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if debug:
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print err
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if sp.returncode != 0:
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print out
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exit(-1)
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if on_windows and out:
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out = re.sub('\r+\n', '\n', out)
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is_written = not bool(out)
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with open(log_file, 'w') as f:
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for line in lines:
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if not is_written and line.startswith('tick'):
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f.write(out)
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is_written = True
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f.write(line)
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