1 /* 2 * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef OS_CPU_LINUX_ARM_OS_LINUX_ARM_HPP 26 #define OS_CPU_LINUX_ARM_OS_LINUX_ARM_HPP 27 28 #ifndef __thumb__ 29 enum { 30 // Offset to add to frame::_fp when dealing with non-thumb C frames 31 C_frame_offset = -1, 32 }; 33 #endif 34 35 static void setup_fpu(); 36 37 static bool is_allocatable(size_t bytes); 38 39 static int64_t (*atomic_cmpxchg_long_func)(int64_t compare_value, 40 int64_t exchange_value, 41 volatile int64_t *dest); 42 43 static int64_t (*atomic_load_long_func)(const volatile int64_t*); 44 45 static void (*atomic_store_long_func)(int64_t, volatile int64_t*); 46 47 static int32_t (*atomic_add_func)(int32_t add_value, volatile int32_t *dest); 48 49 static int32_t (*atomic_xchg_func)(int32_t exchange_value, volatile int32_t *dest); 50 51 static int32_t (*atomic_cmpxchg_func)(int32_t compare_value, 52 int32_t exchange_value, 53 volatile int32_t *dest); 54 55 static int64_t atomic_cmpxchg_long_bootstrap(int64_t, int64_t, volatile int64_t*); 56 57 static int64_t atomic_load_long_bootstrap(const volatile int64_t*); 58 59 static void atomic_store_long_bootstrap(int64_t, volatile int64_t*); 60 61 static int32_t atomic_add_bootstrap(int32_t add_value, volatile int32_t *dest); 62 63 static int32_t atomic_xchg_bootstrap(int32_t exchange_value, volatile int32_t *dest); 64 65 static int32_t atomic_cmpxchg_bootstrap(int32_t compare_value, 66 int32_t exchange_value, 67 volatile int32_t *dest); 68 69 #endif // OS_CPU_LINUX_ARM_OS_LINUX_ARM_HPP