File mozilla-aarch64-4k-page-size.patch of Package MozillaFirefox

# HG changeset patch
# User Makoto Kato <m_kato@ga2.so-net.ne.jp>
# Date 1459850082 -32400
# Node ID c111173a1b98ae219a1172cd7fb15dc8c629e2a2
# Parent 26cb6541748d3f0435634fe6e597ccb110ff5ea9
Bug 1091515 - Don't set 64KB page size on aarch64. r=glandium

Linux/aarch64 supports vairous page size configuration.

(From https://www.kernel.org/doc/Documentation/arm64/memory.txt)
- 4KB + 3 levels
- 4KB + 4 levels
- 64KB + 2 leves

So we shouldn't set fixed 64KB page size on aarch64.


MozReview-Commit-ID: 8IdwBMUW4me

diff --git a/memory/mozjemalloc/jemalloc.c b/memory/mozjemalloc/jemalloc.c
--- a/memory/mozjemalloc/jemalloc.c
+++ b/memory/mozjemalloc/jemalloc.c
@@ -1084,31 +1084,31 @@ static const bool config_recycle = true;
 static const bool config_recycle = false;
 #endif
 
 /*
  * When MALLOC_STATIC_SIZES is defined most of the parameters
  * controlling the malloc behavior are defined as compile-time constants
  * for best performance and cannot be altered at runtime.
  */
-#if !defined(__ia64__) && !defined(__sparc__) && !defined(__mips__)
+#if !defined(__ia64__) && !defined(__sparc__) && !defined(__mips__) && !defined(__aarch64__)
 #define MALLOC_STATIC_SIZES 1
 #endif
 
 #ifdef MALLOC_STATIC_SIZES
 
 /*
  * VM page size. It must divide the runtime CPU page size or the code
  * will abort.
  * Platform specific page size conditions copied from js/public/HeapAPI.h
  */
 #if (defined(SOLARIS) || defined(__FreeBSD__)) && \
     (defined(__sparc) || defined(__sparcv9) || defined(__ia64))
 #define pagesize_2pow			((size_t) 13)
-#elif defined(__powerpc64__) || defined(__aarch64__)
+#elif defined(__powerpc64__)
 #define pagesize_2pow			((size_t) 16)
 #else
 #define pagesize_2pow			((size_t) 12)
 #endif
 #define pagesize			((size_t) 1 << pagesize_2pow)
 #define pagesize_mask			(pagesize - 1)
 
 /* Various quantum-related settings. */