From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: VerteDinde <keeleymhammond@gmail.com>
Date: Sun, 20 Nov 2022 21:45:20 -0800
Subject: fix: enable crashpad for ELECTRON_RUN_AS_NODE linux processes

Passes the crashpad handler PID and crashdump signal file descriptor
to child processes spawned with `ELECTRON_RUN_AS_NODE` which is used
by the crashpad client to connect with the handler process.

diff --git a/lib/child_process.js b/lib/child_process.js
index 960ecd25ebb5b2aba0b92b869a2332a3a69011e1..ced0a5d792c63662c577a41c88b52cae076e7d08 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -62,6 +62,7 @@ let debug = require('internal/util/debuglog').debuglog(
 );
 const { Buffer } = require('buffer');
 const { Pipe, constants: PipeConstants } = internalBinding('pipe_wrap');
+const { getCrashdumpSignalFD, getCrashpadHandlerPID } = process._linkedBinding('electron_common_crashpad_support');
 
 const {
   AbortError,
@@ -156,7 +157,6 @@ function fork(modulePath, args = [], options) {
       ArrayPrototypeSplice(execArgv, index - 1, 2);
     }
   }
-
   args = [...execArgv, modulePath, ...args];
 
   if (typeof options.stdio === 'string') {
@@ -637,6 +637,22 @@ function normalizeSpawnArguments(file, args, options) {
                     'options.windowsVerbatimArguments');
   }
 
+  const env = options.env || { ...process.env };
+
+  if ((process.platform === 'linux') &&
+      ObjectPrototypeHasOwnProperty(env, 'ELECTRON_RUN_AS_NODE') &&
+      (file === process.execPath)) {
+    // On Linux, pass the file descriptor which crashpad handler process
+    // uses to monitor the child process and PID of the handler process.
+    // https://source.chromium.org/chromium/chromium/src/+/110.0.5415.0:components/crash/core/app/crashpad_linux.cc;l=199-206
+    const fd = getCrashdumpSignalFD();
+    const pid = getCrashpadHandlerPID();
+    if (fd !== -1 && pid !== -1) {
+      env.CRASHDUMP_SIGNAL_FD = fd;
+      env.CRASHPAD_HANDLER_PID = pid;
+    }
+  }
+
   if (options.shell) {
     validateArgumentNullCheck(options.shell, 'options.shell');
 
@@ -671,8 +687,6 @@ function normalizeSpawnArguments(file, args, options) {
     ArrayPrototypeUnshift(args, file);
   }
 
-  // Shallow copy to guarantee changes won't impact process.env
-  const env = options.env || { ...process.env };
   const envPairs = [];
 
   // process.env.NODE_V8_COVERAGE always propagates, making it possible to
