From 9c42920c2b635a399bd1f93833efdeb1696f17ee Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen.kooi@linaro.org>
Date: Mon, 2 Mar 2015 19:09:57 +0800
Subject: [PATCH 5/5] aarch64-64k-page

---
Upstream-status: Pending

 js/src/gc/Heap.h     | 2 +-
 js/src/gc/Memory.cpp | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/js/src/gc/Heap.h b/js/src/gc/Heap.h
index 1cfd269..f4dbcda 100644
--- a/js/src/gc/Heap.h
+++ b/js/src/gc/Heap.h
@@ -113,7 +113,7 @@ struct Cell
 #if defined(SOLARIS) && (defined(__sparc) || defined(__sparcv9))
 const size_t PageShift = 13;
 const size_t ArenaShift = PageShift;
-#elif defined(__powerpc__)
+#elif defined(__powerpc__) || defined(__aarch64__)
 const size_t PageShift = 16;
 const size_t ArenaShift = 12;
 #else
diff --git a/js/src/gc/Memory.cpp b/js/src/gc/Memory.cpp
index 5b386a2..e5ad018 100644
--- a/js/src/gc/Memory.cpp
+++ b/js/src/gc/Memory.cpp
@@ -302,8 +302,11 @@ GetPageFaultCount()
 void
 InitMemorySubsystem()
 {
+    /* aarch64 may have 64KB or 4KB pages */
+#ifndef __aarch64__
     if (size_t(sysconf(_SC_PAGESIZE)) != PageSize)
         MOZ_CRASH();
+#endif
 }
 
 void *
-- 
1.9.3