From 9e019ed26bf2ab46040099dadaf778dec436bc4a Mon Sep 17 00:00:00 2001
From: Timon Kruiper <timonkruiper@gmail.com>
Date: Tue, 31 Mar 2020 20:15:09 +0200
Subject: [PATCH] Fix possible unaligned ptr from `getauxval`

This caused SIGILL on armv7a-linux
---
 src/os.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/os.cpp b/src/os.cpp
index a1deb0f611..505063f827 100644
--- a/src/os.cpp
+++ b/src/os.cpp
@@ -1456,7 +1456,10 @@ static void init_rand() {
     memcpy(&seed, bytes, sizeof(unsigned));
     srand(seed);
 #elif defined(ZIG_OS_LINUX)
-    srand(*((unsigned*)getauxval(AT_RANDOM)));
+    unsigned char *ptr_random = (unsigned char*)getauxval(AT_RANDOM);
+    unsigned seed;
+    memcpy(&seed, ptr_random, sizeof(seed));
+    srand(seed);
 #else
     int fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC);
     if (fd == -1) {