1 #!/usr/bin/env python 2 # Copyright 2016 the V8 project authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 # This script executes dumpcpp.js, collects all dumped C++ symbols, 7 # and merges them back into v8 log. 8 9 import os 10 import platform 11 import re 12 import subprocess 13 import sys 14 15 def is_file_executable(fPath): 16 return os.path.isfile(fPath) and os.access(fPath, os.X_OK) 17 18 if __name__ == '__main__': 19 JS_FILES = ['splaytree.js', 'codemap.js', 'csvparser.js', 'consarray.js', 20 'profile.js', 'logreader.js', 'tickprocessor.js', 'SourceMap.js', 21 'dumpcpp.js', 'dumpcpp-driver.js'] 22 tools_path = os.path.dirname(os.path.realpath(__file__)) 23 on_windows = platform.system() == 'Windows' 24 JS_FILES = [os.path.join(tools_path, f) for f in JS_FILES] 25 26 args = [] 27 log_file = 'v8.log' 28 debug = False 29 for arg in sys.argv[1:]: 30 if arg == '--debug': 31 debug = True 32 continue 33 args.append(arg) 34 if not arg.startswith('-'): 35 log_file = arg 36 37 if on_windows: 38 args.append('--windows') 39 40 with open(log_file, 'r') as f: 41 lines = f.readlines() 42 43 d8_line = re.search(',\"(.*d8)', ''.join(lines)) 44 if d8_line: 45 d8_exec = d8_line.group(1) 46 if not is_file_executable(d8_exec): 47 print 'd8 binary path found in {} is not executable.'.format(log_file) 48 sys.exit(-1) 49 else: 50 print 'No d8 binary path found in {}.'.format(log_file) 51 sys.exit(-1) 52 53 args = [d8_exec] + JS_FILES + ['--'] + args 54 55 with open(log_file) as f: 56 sp = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, 57 stdin=f) 58 out, err = sp.communicate() 59 if debug: 60 print err 61 if sp.returncode != 0: 62 print out 63 exit(-1) 64 65 if on_windows and out: 66 out = re.sub('\r+\n', '\n', out) 67 68 is_written = not bool(out) 69 with open(log_file, 'w') as f: 70 for line in lines: 71 if not is_written and line.startswith('tick'): 72 f.write(out) 73 is_written = True 74 f.write(line) 75
