From 3cbf2298b2b3dc24355449131d2e496f8e02b8f5 Mon Sep 17 00:00:00 2001
From: johannst <johannes.stoelp@gmail.com>
Date: Tue, 16 Mar 2021 19:28:38 +0100
Subject: 02: compile time arch check

---
 02_process_init/entry.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/02_process_init/entry.S b/02_process_init/entry.S
index 50425ba..652c175 100644
--- a/02_process_init/entry.S
+++ b/02_process_init/entry.S
@@ -2,6 +2,10 @@
 
 #include <asm/unistd.h>
 
+#if !defined(__linux__) || !defined(__x86_64__)
+#    error "Only supported in linux(x86_64)!"
+#endif
+
 .intel_syntax noprefix
 
 .section .text, "ax", @progbits
-- 
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