target_arch_elf.h (4093B)
1 /* 2 * arm ELF definitions 3 * 4 * Copyright (c) 2013 Stacey D. Son 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef TARGET_ARCH_ELF_H 21 #define TARGET_ARCH_ELF_H 22 23 #define ELF_START_MMAP 0x80000000 24 #define ELF_ET_DYN_LOAD_ADDR 0x500000 25 26 #define elf_check_arch(x) ((x) == EM_ARM) 27 28 #define ELF_CLASS ELFCLASS32 29 #define ELF_DATA ELFDATA2LSB 30 #define ELF_ARCH EM_ARM 31 32 #define USE_ELF_CORE_DUMP 33 #define ELF_EXEC_PAGESIZE 4096 34 35 #define ELF_HWCAP get_elf_hwcap() 36 #define ELF_HWCAP2 get_elf_hwcap2() 37 38 #define GET_FEATURE(feat, hwcap) \ 39 do { if (arm_feature(&cpu->env, feat)) { hwcaps |= hwcap; } } while (0) 40 41 #define GET_FEATURE_ID(feat, hwcap) \ 42 do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0) 43 44 enum { 45 ARM_HWCAP_ARM_SWP = 1 << 0, 46 ARM_HWCAP_ARM_HALF = 1 << 1, 47 ARM_HWCAP_ARM_THUMB = 1 << 2, 48 ARM_HWCAP_ARM_26BIT = 1 << 3, 49 ARM_HWCAP_ARM_FAST_MULT = 1 << 4, 50 ARM_HWCAP_ARM_FPA = 1 << 5, 51 ARM_HWCAP_ARM_VFP = 1 << 6, 52 ARM_HWCAP_ARM_EDSP = 1 << 7, 53 ARM_HWCAP_ARM_JAVA = 1 << 8, 54 ARM_HWCAP_ARM_IWMMXT = 1 << 9, 55 ARM_HWCAP_ARM_CRUNCH = 1 << 10, 56 ARM_HWCAP_ARM_THUMBEE = 1 << 11, 57 ARM_HWCAP_ARM_NEON = 1 << 12, 58 ARM_HWCAP_ARM_VFPv3 = 1 << 13, 59 ARM_HWCAP_ARM_VFPv3D16 = 1 << 14, 60 ARM_HWCAP_ARM_TLS = 1 << 15, 61 ARM_HWCAP_ARM_VFPv4 = 1 << 16, 62 ARM_HWCAP_ARM_IDIVA = 1 << 17, 63 ARM_HWCAP_ARM_IDIVT = 1 << 18, 64 ARM_HWCAP_ARM_VFPD32 = 1 << 19, 65 ARM_HWCAP_ARM_LPAE = 1 << 20, 66 ARM_HWCAP_ARM_EVTSTRM = 1 << 21, 67 }; 68 69 enum { 70 ARM_HWCAP2_ARM_AES = 1 << 0, 71 ARM_HWCAP2_ARM_PMULL = 1 << 1, 72 ARM_HWCAP2_ARM_SHA1 = 1 << 2, 73 ARM_HWCAP2_ARM_SHA2 = 1 << 3, 74 ARM_HWCAP2_ARM_CRC32 = 1 << 4, 75 }; 76 77 static uint32_t get_elf_hwcap(void) 78 { 79 ARMCPU *cpu = ARM_CPU(thread_cpu); 80 uint32_t hwcaps = 0; 81 82 hwcaps |= ARM_HWCAP_ARM_SWP; 83 hwcaps |= ARM_HWCAP_ARM_HALF; 84 hwcaps |= ARM_HWCAP_ARM_THUMB; 85 hwcaps |= ARM_HWCAP_ARM_FAST_MULT; 86 87 /* probe for the extra features */ 88 /* EDSP is in v5TE and above */ 89 GET_FEATURE(ARM_FEATURE_V5, ARM_HWCAP_ARM_EDSP); 90 GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT); 91 GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE); 92 GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON); 93 GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS); 94 GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE); 95 GET_FEATURE_ID(aa32_arm_div, ARM_HWCAP_ARM_IDIVA); 96 GET_FEATURE_ID(aa32_thumb_div, ARM_HWCAP_ARM_IDIVT); 97 GET_FEATURE_ID(aa32_vfp, ARM_HWCAP_ARM_VFP); 98 99 if (cpu_isar_feature(aa32_fpsp_v3, cpu) || 100 cpu_isar_feature(aa32_fpdp_v3, cpu)) { 101 hwcaps |= ARM_HWCAP_ARM_VFPv3; 102 if (cpu_isar_feature(aa32_simd_r32, cpu)) { 103 hwcaps |= ARM_HWCAP_ARM_VFPD32; 104 } else { 105 hwcaps |= ARM_HWCAP_ARM_VFPv3D16; 106 } 107 } 108 GET_FEATURE_ID(aa32_simdfmac, ARM_HWCAP_ARM_VFPv4); 109 110 return hwcaps; 111 } 112 113 static uint32_t get_elf_hwcap2(void) 114 { 115 ARMCPU *cpu = ARM_CPU(thread_cpu); 116 uint32_t hwcaps = 0; 117 118 GET_FEATURE_ID(aa32_aes, ARM_HWCAP2_ARM_AES); 119 GET_FEATURE_ID(aa32_pmull, ARM_HWCAP2_ARM_PMULL); 120 GET_FEATURE_ID(aa32_sha1, ARM_HWCAP2_ARM_SHA1); 121 GET_FEATURE_ID(aa32_sha2, ARM_HWCAP2_ARM_SHA2); 122 GET_FEATURE_ID(aa32_crc32, ARM_HWCAP2_ARM_CRC32); 123 return hwcaps; 124 } 125 126 #undef GET_FEATURE 127 #undef GET_FEATURE_ID 128 129 #endif /* TARGET_ARCH_ELF_H */