From 3f4515c64e2a653602b9d675e08036fb690bde21 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jukka=20Jyl=C3=A4nki?= <jujjyl@gmail.com>
Date: Thu, 7 Feb 2019 17:01:55 +0200
Subject: [PATCH] Optimize C runtime exit() function: in MINIMAL_RUNTIME exit
 will throw

---
 src/library.js | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/src/library.js b/src/library.js
index 08a3722c905c0..f56507a41ac3f 100644
--- a/src/library.js
+++ b/src/library.js
@@ -271,12 +271,22 @@ LibraryManager.library = {
   __execvpe: 'execl',
   fexecve: 'execl',
 
-  _exit: function(status) {
+  exit: function(status) {
+#if MINIMAL_RUNTIME
+    throw 'exit(' + status + ')';
+#else
     // void _exit(int status);
     // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html
     exit(status);
+#endif
   },
 
+  _exit__sig: 'vi',
+  _exit: 'exit',
+
+  _Exit__sig: 'vi',
+  _Exit: 'exit',
+
   fork__deps: ['__setErrNo'],
   fork: function() {
     // pid_t fork(void);
@@ -826,15 +836,6 @@ LibraryManager.library = {
   abs: 'Math_abs',
   labs: 'Math_abs',
 
-  exit__deps: ['_exit'],
-  exit: function(status) {
-    __exit(status);
-  },
-  _Exit__deps: ['exit'],
-  _Exit: function(status) {
-    __exit(status);
-  },
-
   _ZSt9terminatev__deps: ['exit'],
   _ZSt9terminatev: function() {
     _exit(-1234);