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// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Node polyfill
const fs = require('fs');
const cp = require('child_process');
const os = {
system: function(name, args) {
if (process.platform === 'linux' && name === 'nm') {
// Filter out vdso and vsyscall entries.
const arg = args[args.length - 1];
if (arg === '[vdso]' ||
arg == '[vsyscall]' ||
/^[0-9a-f]+-[0-9a-f]+$/.test(arg)) {
return '';
}
} else if (process.platform === 'darwin') {
args.unshift('-c', name);
name = '/bin/sh';
}
return cp.spawnSync(name, args).stdout.toString();
}
};
const print = console.log;
function read(fileName) {
return fs.readFileSync(fileName, 'utf8');
}
const quit = process.exit;
// Polyfill "readline()".
const logFile = arguments[arguments.length - 1];
try {
fs.accessSync(logFile);
} catch(e) {
console.error('Please provide a valid isolate file as the final argument.');
process.exit(1);
}
const fd = fs.openSync(logFile, 'r');
const buf = new Buffer(4096);
const dec = new (require('string_decoder').StringDecoder)('utf-8');
var line = '';
versionCheck();
function readline() {
while (true) {
var lineBreak = line.indexOf('\n');
if (lineBreak !== -1) {
var res = line.slice(0, lineBreak);
line = line.slice(lineBreak + 1);
return res;
}
var bytes = fs.readSync(fd, buf, 0, buf.length);
line += dec.write(buf.slice(0, bytes));
if (line.length === 0) {
return false;
}
}
}
function versionCheck() {
// v8-version looks like "v8-version,$major,$minor,$build,$patch,$candidate"
// whereas process.versions.v8 is either "$major.$minor.$build" or
// "$major.$minor.$build.$patch".
var firstLine = readline();
line = firstLine + '\n' + line;
firstLine = firstLine.split(',');
const curVer = process.versions.v8.split('.');
if (firstLine.length !== 6 && firstLine[0] !== 'v8-version') {
console.log('Unable to read v8-version from log file.');
return;
}
// Compare major, minor and build; ignore the patch and candidate fields.
for (var i = 0; i < 3; i++) {
if (curVer[i] !== firstLine[i + 1]) {
console.log('Testing v8 version different from logging version');
return;
}
}
}
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