ucontext_constants.h
1 // Copyright 2012 Google LLC 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google LLC nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 // This header can be included either from a C, C++ or Assembly file. 30 // Its purpose is to contain constants that must match the offsets of 31 // various fields in ucontext_t. 32 // 33 // They should match the definitions from signal.h. 34 // 35 // Used by src/common/linux/breakpad_getcontext.S 36 // Tested by src/common/linux/breakpad_getcontext_unittest.cc 37 // 38 // This header should not be used by anything else. 39 40 #ifndef GOOGLEBREAKPAD_COMMON_LINUX_UCONTEXT_CONSTANTS_H 41 #define GOOGLEBREAKPAD_COMMON_LINUX_UCONTEXT_CONSTANTS_H 42 43 #if defined(__arm__) 44 45 #define MCONTEXT_GREGS_OFFSET 32 46 #define UCONTEXT_SIGMASK_OFFSET 104 47 48 #elif defined(__aarch64__) 49 50 #define UCONTEXT_SIGMASK_OFFSET 40 51 52 #define MCONTEXT_GREGS_OFFSET 184 53 #define MCONTEXT_SP_OFFSET 432 54 #define MCONTEXT_PC_OFFSET 440 55 #define MCONTEXT_PSTATE_OFFSET 448 56 #define MCONTEXT_EXTENSION_OFFSET 464 57 58 #define FPSIMD_MAGIC 0x46508001 59 60 #define FPSIMD_CONTEXT_MAGIC_OFFSET 0 61 #define FPSIMD_CONTEXT_SIZE_OFFSET 4 62 #define FPSIMD_CONTEXT_FPSR_OFFSET 8 63 #define FPSIMD_CONTEXT_FPCR_OFFSET 12 64 #define FPSIMD_CONTEXT_VREGS_OFFSET 16 65 #define FPSIMD_CONTEXT_SIZE 528 66 67 #define REGISTER_SIZE 8 68 #define SIMD_REGISTER_SIZE 16 69 70 #elif defined(__i386__) 71 72 #define MCONTEXT_GREGS_OFFSET 20 73 #define MCONTEXT_GS_OFFSET (MCONTEXT_GREGS_OFFSET + 0*4) 74 #define MCONTEXT_FS_OFFSET (MCONTEXT_GREGS_OFFSET + 1*4) 75 #define MCONTEXT_ES_OFFSET (MCONTEXT_GREGS_OFFSET + 2*4) 76 #define MCONTEXT_DS_OFFSET (MCONTEXT_GREGS_OFFSET + 3*4) 77 #define MCONTEXT_EDI_OFFSET (MCONTEXT_GREGS_OFFSET + 4*4) 78 #define MCONTEXT_ESI_OFFSET (MCONTEXT_GREGS_OFFSET + 5*4) 79 #define MCONTEXT_EBP_OFFSET (MCONTEXT_GREGS_OFFSET + 6*4) 80 #define MCONTEXT_ESP_OFFSET (MCONTEXT_GREGS_OFFSET + 7*4) 81 #define MCONTEXT_EBX_OFFSET (MCONTEXT_GREGS_OFFSET + 8*4) 82 #define MCONTEXT_EDX_OFFSET (MCONTEXT_GREGS_OFFSET + 9*4) 83 #define MCONTEXT_ECX_OFFSET (MCONTEXT_GREGS_OFFSET + 10*4) 84 #define MCONTEXT_EAX_OFFSET (MCONTEXT_GREGS_OFFSET + 11*4) 85 #define MCONTEXT_TRAPNO_OFFSET (MCONTEXT_GREGS_OFFSET + 12*4) 86 #define MCONTEXT_ERR_OFFSET (MCONTEXT_GREGS_OFFSET + 13*4) 87 #define MCONTEXT_EIP_OFFSET (MCONTEXT_GREGS_OFFSET + 14*4) 88 #define MCONTEXT_CS_OFFSET (MCONTEXT_GREGS_OFFSET + 15*4) 89 #define MCONTEXT_EFL_OFFSET (MCONTEXT_GREGS_OFFSET + 16*4) 90 #define MCONTEXT_UESP_OFFSET (MCONTEXT_GREGS_OFFSET + 17*4) 91 #define MCONTEXT_SS_OFFSET (MCONTEXT_GREGS_OFFSET + 18*4) 92 93 #define UCONTEXT_SIGMASK_OFFSET 108 94 95 #define UCONTEXT_FPREGS_OFFSET 96 96 #if defined(__BIONIC__) 97 #define UCONTEXT_FPREGS_MEM_OFFSET 116 98 #else 99 #define UCONTEXT_FPREGS_MEM_OFFSET 236 100 #endif 101 102 #elif defined(__mips__) 103 104 #if _MIPS_SIM == _ABIO32 105 #define MCONTEXT_PC_OFFSET 32 106 #define MCONTEXT_GREGS_OFFSET 40 107 #define MCONTEXT_FPREGS_OFFSET 296 108 #define MCONTEXT_FPC_CSR 556 109 #define UCONTEXT_SIGMASK_OFFSET 616 110 #else 111 #define MCONTEXT_GREGS_OFFSET 40 112 #define MCONTEXT_FPREGS_OFFSET 296 113 #define MCONTEXT_PC_OFFSET 616 114 #define MCONTEXT_FPC_CSR 624 115 #define UCONTEXT_SIGMASK_OFFSET 640 116 #endif 117 118 #elif defined(__x86_64__) 119 120 #define MCONTEXT_GREGS_OFFSET 40 121 #define UCONTEXT_SIGMASK_OFFSET 296 122 123 #define MCONTEXT_GREGS_R8 40 124 #define MCONTEXT_GREGS_R9 48 125 #define MCONTEXT_GREGS_R10 56 126 #define MCONTEXT_GREGS_R11 64 127 #define MCONTEXT_GREGS_R12 72 128 #define MCONTEXT_GREGS_R13 80 129 #define MCONTEXT_GREGS_R14 88 130 #define MCONTEXT_GREGS_R15 96 131 #define MCONTEXT_GREGS_RDI 104 132 #define MCONTEXT_GREGS_RSI 112 133 #define MCONTEXT_GREGS_RBP 120 134 #define MCONTEXT_GREGS_RBX 128 135 #define MCONTEXT_GREGS_RDX 136 136 #define MCONTEXT_GREGS_RAX 144 137 #define MCONTEXT_GREGS_RCX 152 138 #define MCONTEXT_GREGS_RSP 160 139 #define MCONTEXT_GREGS_RIP 168 140 #define MCONTEXT_FPREGS_PTR 224 141 #if defined(__BIONIC__) 142 #define MCONTEXT_FPREGS_MEM 304 143 #else 144 #define MCONTEXT_FPREGS_MEM 424 145 #endif 146 #define FPREGS_OFFSET_MXCSR 24 147 148 #elif defined(__riscv) 149 150 #if __riscv_xlen == 32 151 #define UCONTEXT_SIGMASK_OFFSET 20 152 #define MCONTEXT_GREGS_OFFSET 148 153 #define MCONTEXT_GREGS_SIZE 4 154 #define REG_S sw 155 #elif __riscv_xlen == 64 156 #define UCONTEXT_SIGMASK_OFFSET 40 157 #define MCONTEXT_GREGS_OFFSET 168 158 #define MCONTEXT_GREGS_SIZE 8 159 #define REG_S sd 160 #else 161 #error "Unexpected __riscv_xlen" 162 #endif 163 164 #define MCONTEXT_GREGS_PC MCONTEXT_GREGS_OFFSET + 0*MCONTEXT_GREGS_SIZE 165 #define MCONTEXT_GREGS_RA MCONTEXT_GREGS_OFFSET + 1*MCONTEXT_GREGS_SIZE 166 #define MCONTEXT_GREGS_SP MCONTEXT_GREGS_OFFSET + 2*MCONTEXT_GREGS_SIZE 167 #define MCONTEXT_GREGS_GP MCONTEXT_GREGS_OFFSET + 3*MCONTEXT_GREGS_SIZE 168 #define MCONTEXT_GREGS_TP MCONTEXT_GREGS_OFFSET + 4*MCONTEXT_GREGS_SIZE 169 #define MCONTEXT_GREGS_T0 MCONTEXT_GREGS_OFFSET + 5*MCONTEXT_GREGS_SIZE 170 #define MCONTEXT_GREGS_T1 MCONTEXT_GREGS_OFFSET + 6*MCONTEXT_GREGS_SIZE 171 #define MCONTEXT_GREGS_T2 MCONTEXT_GREGS_OFFSET + 7*MCONTEXT_GREGS_SIZE 172 #define MCONTEXT_GREGS_S0 MCONTEXT_GREGS_OFFSET + 8*MCONTEXT_GREGS_SIZE 173 #define MCONTEXT_GREGS_S1 MCONTEXT_GREGS_OFFSET + 9*MCONTEXT_GREGS_SIZE 174 #define MCONTEXT_GREGS_A0 MCONTEXT_GREGS_OFFSET + 10*MCONTEXT_GREGS_SIZE 175 #define MCONTEXT_GREGS_A1 MCONTEXT_GREGS_OFFSET + 11*MCONTEXT_GREGS_SIZE 176 #define MCONTEXT_GREGS_A2 MCONTEXT_GREGS_OFFSET + 12*MCONTEXT_GREGS_SIZE 177 #define MCONTEXT_GREGS_A3 MCONTEXT_GREGS_OFFSET + 13*MCONTEXT_GREGS_SIZE 178 #define MCONTEXT_GREGS_A4 MCONTEXT_GREGS_OFFSET + 14*MCONTEXT_GREGS_SIZE 179 #define MCONTEXT_GREGS_A5 MCONTEXT_GREGS_OFFSET + 15*MCONTEXT_GREGS_SIZE 180 #define MCONTEXT_GREGS_A6 MCONTEXT_GREGS_OFFSET + 16*MCONTEXT_GREGS_SIZE 181 #define MCONTEXT_GREGS_A7 MCONTEXT_GREGS_OFFSET + 17*MCONTEXT_GREGS_SIZE 182 #define MCONTEXT_GREGS_S2 MCONTEXT_GREGS_OFFSET + 18*MCONTEXT_GREGS_SIZE 183 #define MCONTEXT_GREGS_S3 MCONTEXT_GREGS_OFFSET + 19*MCONTEXT_GREGS_SIZE 184 #define MCONTEXT_GREGS_S4 MCONTEXT_GREGS_OFFSET + 20*MCONTEXT_GREGS_SIZE 185 #define MCONTEXT_GREGS_S5 MCONTEXT_GREGS_OFFSET + 21*MCONTEXT_GREGS_SIZE 186 #define MCONTEXT_GREGS_S6 MCONTEXT_GREGS_OFFSET + 22*MCONTEXT_GREGS_SIZE 187 #define MCONTEXT_GREGS_S7 MCONTEXT_GREGS_OFFSET + 23*MCONTEXT_GREGS_SIZE 188 #define MCONTEXT_GREGS_S8 MCONTEXT_GREGS_OFFSET + 24*MCONTEXT_GREGS_SIZE 189 #define MCONTEXT_GREGS_S9 MCONTEXT_GREGS_OFFSET + 25*MCONTEXT_GREGS_SIZE 190 #define MCONTEXT_GREGS_S10 MCONTEXT_GREGS_OFFSET + 26*MCONTEXT_GREGS_SIZE 191 #define MCONTEXT_GREGS_S11 MCONTEXT_GREGS_OFFSET + 27*MCONTEXT_GREGS_SIZE 192 #define MCONTEXT_GREGS_T3 MCONTEXT_GREGS_OFFSET + 28*MCONTEXT_GREGS_SIZE 193 #define MCONTEXT_GREGS_T4 MCONTEXT_GREGS_OFFSET + 29*MCONTEXT_GREGS_SIZE 194 #define MCONTEXT_GREGS_T5 MCONTEXT_GREGS_OFFSET + 30*MCONTEXT_GREGS_SIZE 195 #define MCONTEXT_GREGS_T6 MCONTEXT_GREGS_OFFSET + 31*MCONTEXT_GREGS_SIZE 196 197 #define MCONTEXT_FPREGS_OFFSET MCONTEXT_GREGS_OFFSET + 32*MCONTEXT_GREGS_SIZE 198 199 #if __riscv_flen == 32 200 #define MCONTEXT_FPREGS_SIZE 4 201 #define FREG_S fsw 202 #elif __riscv_flen == 64 203 #define MCONTEXT_FPREGS_SIZE 8 204 #define FREG_S fsd 205 #elif __riscv_flen == 128 206 #define MCONTEXT_FPREGS_SIZE 16 207 #define FREG_S fsq 208 #else 209 #error "Unexpected __riscv_flen" 210 #endif 211 212 #define MCONTEXT_FPREGS_FT0 MCONTEXT_FPREGS_OFFSET + 0*MCONTEXT_FPREGS_SIZE 213 #define MCONTEXT_FPREGS_FT1 MCONTEXT_FPREGS_OFFSET + 1*MCONTEXT_FPREGS_SIZE 214 #define MCONTEXT_FPREGS_FT2 MCONTEXT_FPREGS_OFFSET + 2*MCONTEXT_FPREGS_SIZE 215 #define MCONTEXT_FPREGS_FT3 MCONTEXT_FPREGS_OFFSET + 3*MCONTEXT_FPREGS_SIZE 216 #define MCONTEXT_FPREGS_FT4 MCONTEXT_FPREGS_OFFSET + 4*MCONTEXT_FPREGS_SIZE 217 #define MCONTEXT_FPREGS_FT5 MCONTEXT_FPREGS_OFFSET + 5*MCONTEXT_FPREGS_SIZE 218 #define MCONTEXT_FPREGS_FT6 MCONTEXT_FPREGS_OFFSET + 6*MCONTEXT_FPREGS_SIZE 219 #define MCONTEXT_FPREGS_FT7 MCONTEXT_FPREGS_OFFSET + 7*MCONTEXT_FPREGS_SIZE 220 #define MCONTEXT_FPREGS_FS0 MCONTEXT_FPREGS_OFFSET + 8*MCONTEXT_FPREGS_SIZE 221 #define MCONTEXT_FPREGS_FS1 MCONTEXT_FPREGS_OFFSET + 9*MCONTEXT_FPREGS_SIZE 222 #define MCONTEXT_FPREGS_FA0 MCONTEXT_FPREGS_OFFSET + 10*MCONTEXT_FPREGS_SIZE 223 #define MCONTEXT_FPREGS_FA1 MCONTEXT_FPREGS_OFFSET + 11*MCONTEXT_FPREGS_SIZE 224 #define MCONTEXT_FPREGS_FA2 MCONTEXT_FPREGS_OFFSET + 12*MCONTEXT_FPREGS_SIZE 225 #define MCONTEXT_FPREGS_FA3 MCONTEXT_FPREGS_OFFSET + 13*MCONTEXT_FPREGS_SIZE 226 #define MCONTEXT_FPREGS_FA4 MCONTEXT_FPREGS_OFFSET + 14*MCONTEXT_FPREGS_SIZE 227 #define MCONTEXT_FPREGS_FA5 MCONTEXT_FPREGS_OFFSET + 15*MCONTEXT_FPREGS_SIZE 228 #define MCONTEXT_FPREGS_FA6 MCONTEXT_FPREGS_OFFSET + 16*MCONTEXT_FPREGS_SIZE 229 #define MCONTEXT_FPREGS_FA7 MCONTEXT_FPREGS_OFFSET + 17*MCONTEXT_FPREGS_SIZE 230 #define MCONTEXT_FPREGS_FS2 MCONTEXT_FPREGS_OFFSET + 18*MCONTEXT_FPREGS_SIZE 231 #define MCONTEXT_FPREGS_FS3 MCONTEXT_FPREGS_OFFSET + 19*MCONTEXT_FPREGS_SIZE 232 #define MCONTEXT_FPREGS_FS4 MCONTEXT_FPREGS_OFFSET + 20*MCONTEXT_FPREGS_SIZE 233 #define MCONTEXT_FPREGS_FS5 MCONTEXT_FPREGS_OFFSET + 21*MCONTEXT_FPREGS_SIZE 234 #define MCONTEXT_FPREGS_FS6 MCONTEXT_FPREGS_OFFSET + 22*MCONTEXT_FPREGS_SIZE 235 #define MCONTEXT_FPREGS_FS7 MCONTEXT_FPREGS_OFFSET + 23*MCONTEXT_FPREGS_SIZE 236 #define MCONTEXT_FPREGS_FS8 MCONTEXT_FPREGS_OFFSET + 24*MCONTEXT_FPREGS_SIZE 237 #define MCONTEXT_FPREGS_FS9 MCONTEXT_FPREGS_OFFSET + 25*MCONTEXT_FPREGS_SIZE 238 #define MCONTEXT_FPREGS_FS10 MCONTEXT_FPREGS_OFFSET + 26*MCONTEXT_FPREGS_SIZE 239 #define MCONTEXT_FPREGS_FS11 MCONTEXT_FPREGS_OFFSET + 27*MCONTEXT_FPREGS_SIZE 240 #define MCONTEXT_FPREGS_FT8 MCONTEXT_FPREGS_OFFSET + 28*MCONTEXT_FPREGS_SIZE 241 #define MCONTEXT_FPREGS_FT9 MCONTEXT_FPREGS_OFFSET + 29*MCONTEXT_FPREGS_SIZE 242 #define MCONTEXT_FPREGS_FT10 MCONTEXT_FPREGS_OFFSET + 30*MCONTEXT_FPREGS_SIZE 243 #define MCONTEXT_FPREGS_FT11 MCONTEXT_FPREGS_OFFSET + 31*MCONTEXT_FPREGS_SIZE 244 245 #define MCONTEXT_FPC_CSR MCONTEXT_FPREGS_OFFSET + 32*MCONTEXT_FPREGS_SIZE 246 247 #else 248 # error "This header has not been ported for your CPU" 249 #endif 250 251 #endif // GOOGLEBREAKPAD_COMMON_ANDROID_UCONTEXT_CONSTANTS_H