From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 26 Feb 2014 21:49:12 -0500
Subject: [PATCH] Make "exit" take a return code.

This adds "exit" with a return code.  With this patch, any "exit"
command /may/ include a return code, and on platforms that support
returning with an exit status, we will do so.  By default we return the
same exit status we did before this patch.

Signed-off-by: Peter Jones <pjones@redhat.com>
---
 grub-core/kern/emu/main.c | 6 ++++++
 grub-core/kern/misc.c     | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/grub-core/kern/emu/main.c b/grub-core/kern/emu/main.c
index 55ea5a11c..7e47ec812 100644
--- a/grub-core/kern/emu/main.c
+++ b/grub-core/kern/emu/main.c
@@ -72,6 +72,12 @@ grub_exit (int retval __attribute__((unused)))
   grub_reboot ();
 }
 
+void
+grub_exit (int retval __attribute__((unused)))
+{
+  grub_reboot ();
+}
+
 void
 grub_machine_init (void)
 {
diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
index 5ce89a40c..04371ac49 100644
--- a/grub-core/kern/misc.c
+++ b/grub-core/kern/misc.c
@@ -1120,6 +1120,15 @@ grub_abort (void)
   grub_exit (1);
 }
 
+#if defined (__clang__) && !defined (GRUB_UTIL)
+/* clang emits references to abort().  */
+void __attribute__ ((noreturn))
+abort (void)
+{
+  grub_abort ();
+}
+#endif
+
 void
 grub_fatal (const char *fmt, ...)
 {