Marco Zecchini
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Example_RTOS
Rtos API example
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magic_exports.h
00001 /* 00002 * Copyright (c) 2016, ARM Limited, All Rights Reserved 00003 * SPDX-License-Identifier: Apache-2.0 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); you may 00006 * not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 00013 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 #ifndef __UVISOR_API_MAGIC_EXPORTS_H__ 00018 #define __UVISOR_API_MAGIC_EXPORTS_H__ 00019 00020 #include <stdint.h> 00021 00022 /* udf imm16 00023 * UDF - ARMv7M ARM section A7.7.191 00024 * 111 1;0 111;1111; <imm4>; 1 01 0; <imm12> (Encoding T2) 00025 */ 00026 #define UDF_OPCODE(imm16) \ 00027 ((uint32_t) (0xA000F7F0UL | (((uint32_t) (imm16) & 0xFFFU) << 16U) | (((uint32_t) (imm16) & 0xF000UL) >> 12))) 00028 00029 /** Magics 00030 * 00031 * The following magics are used to verify various things within uVisor.The 00032 * magics are chosen to be one of the explicitly undefined Thumb-2 00033 * instructions. 00034 */ 00035 #if defined(__thumb__) && defined(__thumb2__) 00036 #define UVISOR_RPC_GATEWAY_MAGIC_ASYNC UDF_OPCODE(0x07C2) 00037 #define UVISOR_RPC_GATEWAY_MAGIC_SYNC UDF_OPCODE(0x07C3) 00038 #define UVISOR_POOL_MAGIC UDF_OPCODE(0x07C4) 00039 #define UVISOR_POOL_QUEUE_MAGIC UDF_OPCODE(0x07C5) 00040 #define UVISOR_DEBUG_BOX_MAGIC UDF_OPCODE(0x07C6) 00041 #else 00042 #error "Unsupported instruction set. The ARM Thumb-2 instruction set must be supported." 00043 #endif /* __thumb__ && __thumb2__ */ 00044 00045 00046 #endif /* __UVISOR_API_MAGIC_EXPORTS_H__ */
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