From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samuel Attard <sattard@slack-corp.com>
Date: Wed, 22 May 2019 13:34:18 -0700
Subject: chore: allow the node entrypoint to be a builtin_module

This allows embedders to tell Node.js what the first "real" file is  when
they use themselves as the entry point. We should try to upstream some form
of this.

diff --git a/lib/internal/bootstrap/pre_execution.js b/lib/internal/bootstrap/pre_execution.js
index 3c5e6fe40070f52d8b3f4e9757485845c1d6dbed..2af6b11c97ecdca3c40792ab35c69b07b9db76a0 100644
--- a/lib/internal/bootstrap/pre_execution.js
+++ b/lib/internal/bootstrap/pre_execution.js
@@ -95,11 +95,13 @@ function patchProcessObject(expandArgv1) {
   if (expandArgv1 && process.argv[1] &&
       !StringPrototypeStartsWith(process.argv[1], '-')) {
     // Expand process.argv[1] into a full path.
-    const path = require('path');
-    try {
-      process.argv[1] = path.resolve(process.argv[1]);
-    } catch {
-      // Continue regardless of error.
+    if (!process.argv[1] || !process.argv[1].startsWith('electron/js2c')) {
+      const path = require('path');
+      try {
+        process.argv[1] = path.resolve(process.argv[1]);
+      } catch {
+        // Continue regardless of error.
+      }
     }
   }
 
diff --git a/lib/internal/modules/cjs/loader.js b/lib/internal/modules/cjs/loader.js
index caca939942cb721a3efde7005b0a987a19237a8b..2d30a56a87ff8657cddb3d9e6af5bd9f81deffdb 100644
--- a/lib/internal/modules/cjs/loader.js
+++ b/lib/internal/modules/cjs/loader.js
@@ -1077,6 +1077,13 @@ Module.prototype._compile = function(content, filename) {
   if (getOptionValue('--inspect-brk') && process._eval == null) {
     if (!resolvedArgv) {
       // We enter the repl if we're not given a filename argument.
+      // process._firstFileName is used by Embedders to tell node what
+      // the first "real" file is when they use themselves as the entry
+      // point
+      if (process._firstFileName) {
+        resolvedArgv = process._firstFileName
+        delete process._firstFileName
+      } else
       if (process.argv[1]) {
         try {
           resolvedArgv = Module._resolveFilename(process.argv[1], null, false);
