1 /* 2 * Tiny Code Generator for QEMU 3 * 4 * Copyright (c) 2008 Fabrice Bellard 5 * Copyright (c) 2008 Andrzej Zaborowski 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #ifndef ARM_TCG_TARGET_H 27 #define ARM_TCG_TARGET_H 28 29 /* The __ARM_ARCH define is provided by gcc 4.8. Construct it otherwise. */ 30 #ifndef __ARM_ARCH 31 # if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ 32 || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ 33 || defined(__ARM_ARCH_7EM__) 34 # define __ARM_ARCH 7 35 # elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ 36 || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \ 37 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) 38 # define __ARM_ARCH 6 39 # elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5E__) \ 40 || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) \ 41 || defined(__ARM_ARCH_5TEJ__) 42 # define __ARM_ARCH 5 43 # else 44 # define __ARM_ARCH 4 45 # endif 46 #endif 47 48 extern int arm_arch; 49 50 #if defined(__ARM_ARCH_5T__) \ 51 || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__) 52 # define use_armv5t_instructions 1 53 #else 54 # define use_armv5t_instructions use_armv6_instructions 55 #endif 56 57 #define use_armv6_instructions (__ARM_ARCH >= 6 || arm_arch >= 6) 58 #define use_armv7_instructions (__ARM_ARCH >= 7 || arm_arch >= 7) 59 60 #undef TCG_TARGET_STACK_GROWSUP 61 #define TCG_TARGET_INSN_UNIT_SIZE 4 62 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 16 63 64 typedef enum { 65 TCG_REG_R0 = 0, 66 TCG_REG_R1, 67 TCG_REG_R2, 68 TCG_REG_R3, 69 TCG_REG_R4, 70 TCG_REG_R5, 71 TCG_REG_R6, 72 TCG_REG_R7, 73 TCG_REG_R8, 74 TCG_REG_R9, 75 TCG_REG_R10, 76 TCG_REG_R11, 77 TCG_REG_R12, 78 TCG_REG_R13, 79 TCG_REG_R14, 80 TCG_REG_PC, 81 } TCGReg; 82 83 #define TCG_TARGET_NB_REGS 16 84 85 #ifdef __ARM_ARCH_EXT_IDIV__ 86 #define use_idiv_instructions 1 87 #else 88 extern bool use_idiv_instructions; 89 #endif 90 91 92 /* used for function call generation */ 93 #define TCG_REG_CALL_STACK TCG_REG_R13 94 #define TCG_TARGET_STACK_ALIGN 8 95 #define TCG_TARGET_CALL_ALIGN_ARGS 1 96 #define TCG_TARGET_CALL_STACK_OFFSET 0 97 98 /* optional instructions */ 99 #define TCG_TARGET_HAS_ext8s_i32 1 100 #define TCG_TARGET_HAS_ext16s_i32 1 101 #define TCG_TARGET_HAS_ext8u_i32 0 /* and r0, r1, #0xff */ 102 #define TCG_TARGET_HAS_ext16u_i32 1 103 #define TCG_TARGET_HAS_bswap16_i32 1 104 #define TCG_TARGET_HAS_bswap32_i32 1 105 #define TCG_TARGET_HAS_not_i32 1 106 #define TCG_TARGET_HAS_neg_i32 1 107 #define TCG_TARGET_HAS_rot_i32 1 108 #define TCG_TARGET_HAS_andc_i32 1 109 #define TCG_TARGET_HAS_orc_i32 0 110 #define TCG_TARGET_HAS_eqv_i32 0 111 #define TCG_TARGET_HAS_nand_i32 0 112 #define TCG_TARGET_HAS_nor_i32 0 113 #define TCG_TARGET_HAS_clz_i32 use_armv5t_instructions 114 #define TCG_TARGET_HAS_ctz_i32 use_armv7_instructions 115 #define TCG_TARGET_HAS_ctpop_i32 0 116 #define TCG_TARGET_HAS_deposit_i32 use_armv7_instructions 117 #define TCG_TARGET_HAS_extract_i32 use_armv7_instructions 118 #define TCG_TARGET_HAS_sextract_i32 use_armv7_instructions 119 #define TCG_TARGET_HAS_movcond_i32 1 120 #define TCG_TARGET_HAS_mulu2_i32 1 121 #define TCG_TARGET_HAS_muls2_i32 1 122 #define TCG_TARGET_HAS_muluh_i32 0 123 #define TCG_TARGET_HAS_mulsh_i32 0 124 #define TCG_TARGET_HAS_div_i32 use_idiv_instructions 125 #define TCG_TARGET_HAS_rem_i32 0 126 #define TCG_TARGET_HAS_goto_ptr 1 127 #define TCG_TARGET_HAS_direct_jump 0 128 129 enum { 130 TCG_AREG0 = TCG_REG_R6, 131 }; 132 133 #define TCG_TARGET_DEFAULT_MO (0) 134 #define TCG_TARGET_HAS_MEMORY_BSWAP 1 135 136 static inline void flush_icache_range(uintptr_t start, uintptr_t stop) 137 { 138 __builtin___clear_cache((char *) start, (char *) stop); 139 } 140 141 /* not defined -- call should be eliminated at compile time */ 142 void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t); 143 144 #ifdef CONFIG_SOFTMMU 145 #define TCG_TARGET_NEED_LDST_LABELS 146 #endif 147 #define TCG_TARGET_NEED_POOL_LABELS 148 149 #endif 150