Add the NSPR macro definitions for ARM64 bit.
BUG=354405
Review URL: https://codereview.chromium.org/206073009
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@258430 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/third_party/nspr/prcpucfg_linux.h b/base/third_party/nspr/prcpucfg_linux.h
index e4336da..45d6bf9 100644
--- a/base/third_party/nspr/prcpucfg_linux.h
+++ b/base/third_party/nspr/prcpucfg_linux.h
@@ -558,6 +558,59 @@
#define PR_BYTES_PER_WORD_LOG2 2
#define PR_BYTES_PER_DWORD_LOG2 3
+#elif defined(__aarch64__)
+
+#ifdef __AARCH64EB__
+#undef IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#elif defined(__AARCH64EL__)
+#define IS_LITTLE_ENDIAN 1
+#undef IS_BIG_ENDIAN
+#else
+#error "Unknown Aarch64 endianness."
+#endif
+#define IS_64
+
+#define PR_BYTES_PER_BYTE 1
+#define PR_BYTES_PER_SHORT 2
+#define PR_BYTES_PER_INT 4
+#define PR_BYTES_PER_INT64 8
+#define PR_BYTES_PER_LONG 8
+#define PR_BYTES_PER_FLOAT 4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD 8
+#define PR_BYTES_PER_DWORD 8
+
+#define PR_BITS_PER_BYTE 8
+#define PR_BITS_PER_SHORT 16
+#define PR_BITS_PER_INT 32
+#define PR_BITS_PER_INT64 64
+#define PR_BITS_PER_LONG 64
+#define PR_BITS_PER_FLOAT 32
+#define PR_BITS_PER_DOUBLE 64
+#define PR_BITS_PER_WORD 64
+
+#define PR_BITS_PER_BYTE_LOG2 3
+#define PR_BITS_PER_SHORT_LOG2 4
+#define PR_BITS_PER_INT_LOG2 5
+#define PR_BITS_PER_INT64_LOG2 6
+#define PR_BITS_PER_LONG_LOG2 6
+#define PR_BITS_PER_FLOAT_LOG2 5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2 6
+
+#define PR_ALIGN_OF_SHORT 2
+#define PR_ALIGN_OF_INT 4
+#define PR_ALIGN_OF_LONG 8
+#define PR_ALIGN_OF_INT64 8
+#define PR_ALIGN_OF_FLOAT 4
+#define PR_ALIGN_OF_DOUBLE 8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD 8
+
+#define PR_BYTES_PER_WORD_LOG2 3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
#elif defined(__hppa__)
#undef IS_LITTLE_ENDIAN
