From 1e65d28e5b16c2621587e4ce3ebb48bb881b019a Mon Sep 17 00:00:00 2001
From: jsteemann <jan@arangodb.com>
Date: Thu, 15 Dec 2016 16:26:27 +0100
Subject: [PATCH] align memory for ARM

---
 arangod/FulltextIndex/fulltext-index.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arangod/FulltextIndex/fulltext-index.cpp b/arangod/FulltextIndex/fulltext-index.cpp
index b25f13d0f7..59dcd9192a 100644
--- a/arangod/FulltextIndex/fulltext-index.cpp
+++ b/arangod/FulltextIndex/fulltext-index.cpp
@@ -36,7 +36,13 @@
 /// @brief use padding for pointers in binary data
 ////////////////////////////////////////////////////////////////////////////////
 
+#ifdef __arm__
+// must properly align memory on ARM architecture to prevent
+// unaligned memory accesses
+#define FULLTEXT_PADDING 1
+#else
 #undef FULLTEXT_PADDING
+#endif
 
 ////////////////////////////////////////////////////////////////////////////////
 /// @brief maximum length of an indexed word in bytes
@@ -210,6 +216,7 @@ void DumpNode(const node_t* const node, uint32_t level) {
 
 static inline size_t Padding(uint32_t numEntries) {
 #ifdef FULLTEXT_PADDING
+  size_t const PAD = 8;
   size_t offset = sizeof(uint8_t) +                    // numAllocated
                   sizeof(uint8_t) +                    // numUsed
                   (sizeof(node_char_t) * numEntries);  // followerKeys