D7797.id17641.diff
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	Index: scripts/__init_script__.php
	===================================================================
	--- scripts/__init_script__.php
	+++ scripts/__init_script__.php
	@@ -1,5 +1,14 @@
	<?php

	+function __phutil_signal_handler__($signal_number) {
	+ $e = new Exception();
	+ $pid = getmypid();
	+ // Some phabricator daemons may not be attached to a terminal.
	+ Filesystem::writeFile(sys_get_temp_dir() . "/phabricator_backtrace_" . $pid,
	+ $e->getTraceAsString());
	+
	+}
	+
	function __phutil_init_script__() {
	// Adjust the runtime language configuration to be reasonable and inline with
	// expectations. We do this first, then load libraries.
	@@ -65,6 +74,15 @@
	require_once $root.'/src/__phutil_library_init__.php';

	PhutilErrorHandler::initialize();
	+
	+ if (function_exists('pcntl_signal')) {
	+ if (!pcntl_signal(SIGHUP, "__phutil_signal_handler__")) {
	+ echo "WARNING: Unable to register SIGHUP handler\n";
	+ }
	+ } else {
	+ echo "WARNING: function pcntl_signal not available. ";
	+ echo "Not registering SIGHUP handler\n";
	+ }
	}

	__phutil_init_script__();