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12fad1bd7b
Instead of polyfilling it with vm.SourceTextModule, use a built-in source text module loader so that we can also build the code cache for it at build tiem to embed the code cache for them in the binary. Drive-by: instead of inferring how to compile a particular built-in at run time, do the inferring at build time, so the function-based built-ins can be compiled using parameters quickly looked up from a static map, and the builtins that should be compiled as source text modules are known internally based on extension in the source code (at run time, the extensions are all removed). PR-URL: https://github.com/nodejs/node/pull/60518 Reviewed-By: Aditi Singh <aditisingh1400@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
38 lines
1.4 KiB
JavaScript
38 lines
1.4 KiB
JavaScript
'use strict';
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// This main script is used by --prof-process to process logs generated by --prof.
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// The tick processor implementation is vendor-in from V8, placed in deps/v8/tools,
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// and they have different resolution rules compared to normal Node.js internal builtins,
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// despite being embedded into the binary as a built-in as well.
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// TODO(joyeecheung): put the context locals in import.meta.
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const {
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ObjectAssign,
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PromisePrototypeThen,
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globalThis,
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} = primordials;
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const {
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prepareMainThreadExecution,
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markBootstrapComplete,
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} = require('internal/process/pre_execution');
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const { importBuiltinSourceTextModule } = internalBinding('builtins');
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const { triggerUncaughtException } = internalBinding('errors');
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prepareMainThreadExecution();
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markBootstrapComplete();
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// Polyfill the context with globals needed by the tick processor.
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const { globals, openFile } = require('internal/v8_prof_polyfill');
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ObjectAssign(globalThis, globals);
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openFile(process.argv[process.argv.length - 1]);
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// Load and evaluate the V8 tick processor as a source text module.
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const { promise } = importBuiltinSourceTextModule('internal/deps/v8/tools/tickprocessor-driver');
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// We must catch the rejection asynchronously to print it out properly since
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// the tick processor contains top level await.
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PromisePrototypeThen(promise, undefined, (err) => {
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triggerUncaughtException(err, true /* fromPromise */);
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});
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