From 913b1361dc51d80091fe8bf586f39cb9f85ea9ac Mon Sep 17 00:00:00 2001
From: Giacomo Tesio <giacomo@tesio.it>
Date: Fri, 19 May 2017 01:02:42 +0200
Subject: [PATCH] u.h: (try) to avoid optimizations of syscall arguments

---
 arch/amd64/include/u.h | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/amd64/include/u.h b/arch/amd64/include/u.h
index 399825b..8e51db2 100644
--- a/arch/amd64/include/u.h
+++ b/arch/amd64/include/u.h
@@ -86,15 +86,15 @@ typedef __builtin_va_list va_list;
 
 typedef union NativeTypes
 {
-	char c;
-	unsigned char uc;
-	short s;
-	unsigned short us;
-	int i;
-	unsigned int ui;
-	long l;
-	unsigned long ul;
-	void* p;
+	volatile char c;
+	volatile unsigned char uc;
+	volatile short s;
+	volatile unsigned short us;
+	volatile int i;
+	volatile unsigned int ui;
+	volatile long l;
+	volatile unsigned long ul;
+	volatile void* p;
 } NativeTypes;
 extern volatile NativeTypes* _sysargs;
 # include "syscalls.h"