--- /dev/null 2016-08-24 15:41:39.598575000 -0400 +++ new/hotspot/src/os_cpu/linux_arm/vm/os_linux_arm.hpp 2016-09-27 10:04:32.968415359 -0400 @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2008, 2015, 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 OS_CPU_LINUX_ARM_VM_OS_LINUX_ARM_HPP +#define OS_CPU_LINUX_ARM_VM_OS_LINUX_ARM_HPP + +#ifndef __thumb__ + enum { + // Offset to add to frame::_fp when dealing with non-thumb C frames +#ifdef AARCH64 + C_frame_offset = 0, +#else + C_frame_offset = -1, +#endif + }; +#endif + + static void setup_fpu(); + + static bool is_allocatable(size_t bytes); + + // Used to register dynamic code cache area with the OS + // Note: Currently only used in 64 bit Windows implementations + static bool register_code_area(char *low, char *high) { return true; } + +#ifndef AARCH64 + static jlong (*atomic_cmpxchg_long_func)(jlong compare_value, + jlong exchange_value, + volatile jlong *dest); + + static jlong (*atomic_load_long_func)(volatile jlong*); + + static void (*atomic_store_long_func)(jlong, volatile jlong*); + + static jint (*atomic_add_func)(jint add_value, volatile jint *dest); + + static jint (*atomic_xchg_func)(jint exchange_value, volatile jint *dest); + + static jint (*atomic_cmpxchg_func)(jint compare_value, + jint exchange_value, + volatile jint *dest); + + static jlong atomic_cmpxchg_long_bootstrap(jlong, jlong, volatile jlong*); + + static jlong atomic_load_long_bootstrap(volatile jlong*); + + static void atomic_store_long_bootstrap(jlong, volatile jlong*); + + static jint atomic_add_bootstrap(jint add_value, volatile jint *dest); + + static jint atomic_xchg_bootstrap(jint exchange_value, volatile jint *dest); + + static jint atomic_cmpxchg_bootstrap(jint compare_value, + jint exchange_value, + volatile jint *dest); +#endif // !AARCH64 + +#endif // OS_CPU_LINUX_ARM_VM_OS_LINUX_ARM_HPP