--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/arm/bytes_arm.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef CPU_ARM_VM_BYTES_ARM_HPP
+#define CPU_ARM_VM_BYTES_ARM_HPP
+
+#include "memory/allocation.hpp"
+#include "utilities/macros.hpp"
+
+#ifndef VM_LITTLE_ENDIAN
+#define VM_LITTLE_ENDIAN 1
+#endif
+
+class Bytes: AllStatic {
+
+ public:
+ static inline u2 get_Java_u2(address p) {
+ return (u2(p[0]) << 8) | u2(p[1]);
+ }
+
+ static inline u4 get_Java_u4(address p) {
+ return u4(p[0]) << 24 |
+ u4(p[1]) << 16 |
+ u4(p[2]) << 8 |
+ u4(p[3]);
+ }
+
+ static inline u8 get_Java_u8(address p) {
+ return u8(p[0]) << 56 |
+ u8(p[1]) << 48 |
+ u8(p[2]) << 40 |
+ u8(p[3]) << 32 |
+ u8(p[4]) << 24 |
+ u8(p[5]) << 16 |
+ u8(p[6]) << 8 |
+ u8(p[7]);
+ }
+
+ static inline void put_Java_u2(address p, u2 x) {
+ p[0] = x >> 8;
+ p[1] = x;
+ }
+
+ static inline void put_Java_u4(address p, u4 x) {
+ ((u1*)p)[0] = x >> 24;
+ ((u1*)p)[1] = x >> 16;
+ ((u1*)p)[2] = x >> 8;
+ ((u1*)p)[3] = x;
+ }
+
+ static inline void put_Java_u8(address p, u8 x) {
+ ((u1*)p)[0] = x >> 56;
+ ((u1*)p)[1] = x >> 48;
+ ((u1*)p)[2] = x >> 40;
+ ((u1*)p)[3] = x >> 32;
+ ((u1*)p)[4] = x >> 24;
+ ((u1*)p)[5] = x >> 16;
+ ((u1*)p)[6] = x >> 8;
+ ((u1*)p)[7] = x;
+ }
+
+#ifdef VM_LITTLE_ENDIAN
+
+ static inline u2 get_native_u2(address p) {
+ return (intptr_t(p) & 1) == 0 ? *(u2*)p : u2(p[0]) | (u2(p[1]) << 8);
+ }
+
+ static inline u4 get_native_u4(address p) {
+ switch (intptr_t(p) & 3) {
+ case 0: return *(u4*)p;
+ case 2: return u4(((u2*)p)[0]) |
+ u4(((u2*)p)[1]) << 16;
+ default: return u4(p[0]) |
+ u4(p[1]) << 8 |
+ u4(p[2]) << 16 |
+ u4(p[3]) << 24;
+ }
+ }
+
+ static inline u8 get_native_u8(address p) {
+ switch (intptr_t(p) & 7) {
+ case 0: return *(u8*)p;
+ case 4: return u8(((u4*)p)[0]) |
+ u8(((u4*)p)[1]) << 32;
+ case 2: return u8(((u2*)p)[0]) |
+ u8(((u2*)p)[1]) << 16 |
+ u8(((u2*)p)[2]) << 32 |
+ u8(((u2*)p)[3]) << 48;
+ default: return u8(p[0]) |
+ u8(p[1]) << 8 |
+ u8(p[2]) << 16 |
+ u8(p[3]) << 24 |
+ u8(p[4]) << 32 |
+ u8(p[5]) << 40 |
+ u8(p[6]) << 48 |
+ u8(p[7]) << 56;
+ }
+ }
+
+ static inline void put_native_u2(address p, u2 x) {
+ if ((intptr_t(p) & 1) == 0) {
+ *(u2*)p = x;
+ } else {
+ p[0] = x;
+ p[1] = x >> 8;
+ }
+ }
+
+ static inline void put_native_u4(address p, u4 x) {
+ switch (intptr_t(p) & 3) {
+ case 0: *(u4*)p = x;
+ break;
+ case 2: ((u2*)p)[0] = x;
+ ((u2*)p)[1] = x >> 16;
+ break;
+ default: ((u1*)p)[0] = x;
+ ((u1*)p)[1] = x >> 8;
+ ((u1*)p)[2] = x >> 16;
+ ((u1*)p)[3] = x >> 24;
+ break;
+ }
+ }
+
+ static inline void put_native_u8(address p, u8 x) {
+ switch (intptr_t(p) & 7) {
+ case 0: *(u8*)p = x;
+ break;
+ case 4: ((u4*)p)[0] = x;
+ ((u4*)p)[1] = x >> 32;
+ break;
+ case 2: ((u2*)p)[0] = x;
+ ((u2*)p)[1] = x >> 16;
+ ((u2*)p)[2] = x >> 32;
+ ((u2*)p)[3] = x >> 48;
+ break;
+ default: ((u1*)p)[0] = x;
+ ((u1*)p)[1] = x >> 8;
+ ((u1*)p)[2] = x >> 16;
+ ((u1*)p)[3] = x >> 24;
+ ((u1*)p)[4] = x >> 32;
+ ((u1*)p)[5] = x >> 40;
+ ((u1*)p)[6] = x >> 48;
+ ((u1*)p)[7] = x >> 56;
+ }
+ }
+
+#else
+
+ static inline u2 get_native_u2(address p) { return get_Java_u2(p); }
+ static inline u4 get_native_u4(address p) { return get_Java_u4(p); }
+ static inline u8 get_native_u8(address p) { return get_Java_u8(p); }
+ static inline void put_native_u2(address p, u2 x) { put_Java_u2(p, x); }
+ static inline void put_native_u4(address p, u4 x) { put_Java_u4(p, x); }
+ static inline void put_native_u8(address p, u8 x) { put_Java_u8(p, x); }
+
+#endif // VM_LITTLE_ENDIAN
+
+ // Efficient swapping of byte ordering
+ static inline u2 swap_u2(u2 x);
+ static inline u4 swap_u4(u4 x);
+ static inline u8 swap_u8(u8 x);
+};
+
+
+// The following header contains the implementations of swap_u2, swap_u4, and swap_u8
+#include OS_CPU_HEADER_INLINE(bytes)
+
+#endif // CPU_ARM_VM_BYTES_ARM_HPP