nodejs/lib/internal/v8_prof_processor.js

'use strict';

const {
  ArrayPrototypePush,
  ArrayPrototypeSlice,
  JSONStringify,
} = primordials;

const vm = require('vm');

const scriptFiles = [
  'internal/v8_prof_polyfill',
  'internal/deps/v8/tools/splaytree',
  'internal/deps/v8/tools/codemap',
  'internal/deps/v8/tools/csvparser',
  'internal/deps/v8/tools/consarray',
  'internal/deps/v8/tools/profile',
  'internal/deps/v8/tools/profile_view',
  'internal/deps/v8/tools/logreader',
  'internal/deps/v8/tools/arguments',
  'internal/deps/v8/tools/tickprocessor',
  'internal/deps/v8/tools/SourceMap',
  'internal/deps/v8/tools/tickprocessor-driver',
];
let script = '';

for (const s of scriptFiles) {
  script += internalBinding('natives')[s] + '\n';
}

const tickArguments = [];
if (process.platform === 'darwin') {
  ArrayPrototypePush(tickArguments, '--mac');
} else if (process.platform === 'win32') {
  ArrayPrototypePush(tickArguments, '--windows');
}
ArrayPrototypePush(tickArguments,
                   ...ArrayPrototypeSlice(process.argv, 1));
script = `(function(module, require) {
  arguments = ${JSONStringify(tickArguments)};
  function write (s) { process.stdout.write(s) }
  function printErr(err) { console.error(err); }
  ${script}
})`;
vm.runInThisContext(script)(module, require);