1 //===-- RegisterContextPOSIX_x86.cpp --------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include <cerrno> 10 #include <cstdint> 11 #include <cstring> 12 13 #include "lldb/Target/Process.h" 14 #include "lldb/Target/Target.h" 15 #include "lldb/Target/Thread.h" 16 #include "lldb/Utility/DataBufferHeap.h" 17 #include "lldb/Utility/DataExtractor.h" 18 #include "lldb/Utility/Endian.h" 19 #include "lldb/Utility/RegisterValue.h" 20 #include "lldb/Utility/Scalar.h" 21 #include "llvm/Support/Compiler.h" 22 23 #include "RegisterContextPOSIX_x86.h" 24 #include "RegisterContext_x86.h" 25 26 using namespace lldb_private; 27 using namespace lldb; 28 29 const uint32_t g_gpr_regnums_i386[] = { 30 lldb_eax_i386, lldb_ebx_i386, lldb_ecx_i386, lldb_edx_i386, 31 lldb_edi_i386, lldb_esi_i386, lldb_ebp_i386, lldb_esp_i386, 32 lldb_eip_i386, lldb_eflags_i386, lldb_cs_i386, lldb_fs_i386, 33 lldb_gs_i386, lldb_ss_i386, lldb_ds_i386, lldb_es_i386, 34 lldb_ax_i386, lldb_bx_i386, lldb_cx_i386, lldb_dx_i386, 35 lldb_di_i386, lldb_si_i386, lldb_bp_i386, lldb_sp_i386, 36 lldb_ah_i386, lldb_bh_i386, lldb_ch_i386, lldb_dh_i386, 37 lldb_al_i386, lldb_bl_i386, lldb_cl_i386, lldb_dl_i386, 38 LLDB_INVALID_REGNUM, // Register sets must be terminated with 39 // LLDB_INVALID_REGNUM. 40 }; 41 static_assert((sizeof(g_gpr_regnums_i386) / sizeof(g_gpr_regnums_i386[0])) - 42 1 == 43 k_num_gpr_registers_i386, 44 "g_gpr_regnums_i386 has wrong number of register infos"); 45 46 const uint32_t g_lldb_regnums_i386[] = { 47 lldb_fctrl_i386, lldb_fstat_i386, lldb_ftag_i386, lldb_fop_i386, 48 lldb_fiseg_i386, lldb_fioff_i386, lldb_foseg_i386, lldb_fooff_i386, 49 lldb_mxcsr_i386, lldb_mxcsrmask_i386, lldb_st0_i386, lldb_st1_i386, 50 lldb_st2_i386, lldb_st3_i386, lldb_st4_i386, lldb_st5_i386, 51 lldb_st6_i386, lldb_st7_i386, lldb_mm0_i386, lldb_mm1_i386, 52 lldb_mm2_i386, lldb_mm3_i386, lldb_mm4_i386, lldb_mm5_i386, 53 lldb_mm6_i386, lldb_mm7_i386, lldb_xmm0_i386, lldb_xmm1_i386, 54 lldb_xmm2_i386, lldb_xmm3_i386, lldb_xmm4_i386, lldb_xmm5_i386, 55 lldb_xmm6_i386, lldb_xmm7_i386, 56 LLDB_INVALID_REGNUM // Register sets must be terminated with 57 // LLDB_INVALID_REGNUM. 58 }; 59 static_assert((sizeof(g_lldb_regnums_i386) / sizeof(g_lldb_regnums_i386[0])) - 60 1 == 61 k_num_fpr_registers_i386, 62 "g_lldb_regnums_i386 has wrong number of register infos"); 63 64 const uint32_t g_avx_regnums_i386[] = { 65 lldb_ymm0_i386, lldb_ymm1_i386, lldb_ymm2_i386, lldb_ymm3_i386, 66 lldb_ymm4_i386, lldb_ymm5_i386, lldb_ymm6_i386, lldb_ymm7_i386, 67 LLDB_INVALID_REGNUM // Register sets must be terminated with 68 // LLDB_INVALID_REGNUM. 69 }; 70 static_assert((sizeof(g_avx_regnums_i386) / sizeof(g_avx_regnums_i386[0])) - 71 1 == 72 k_num_avx_registers_i386, 73 " g_avx_regnums_i386 has wrong number of register infos"); 74 75 static const uint32_t g_gpr_regnums_x86_64[] = { 76 lldb_rax_x86_64, lldb_rbx_x86_64, lldb_rcx_x86_64, lldb_rdx_x86_64, 77 lldb_rdi_x86_64, lldb_rsi_x86_64, lldb_rbp_x86_64, lldb_rsp_x86_64, 78 lldb_r8_x86_64, lldb_r9_x86_64, lldb_r10_x86_64, lldb_r11_x86_64, 79 lldb_r12_x86_64, lldb_r13_x86_64, lldb_r14_x86_64, lldb_r15_x86_64, 80 lldb_rip_x86_64, lldb_rflags_x86_64, lldb_cs_x86_64, lldb_fs_x86_64, 81 lldb_gs_x86_64, lldb_ss_x86_64, lldb_ds_x86_64, lldb_es_x86_64, 82 lldb_eax_x86_64, lldb_ebx_x86_64, lldb_ecx_x86_64, lldb_edx_x86_64, 83 lldb_edi_x86_64, lldb_esi_x86_64, lldb_ebp_x86_64, lldb_esp_x86_64, 84 lldb_r8d_x86_64, // Low 32 bits or r8 85 lldb_r9d_x86_64, // Low 32 bits or r9 86 lldb_r10d_x86_64, // Low 32 bits or r10 87 lldb_r11d_x86_64, // Low 32 bits or r11 88 lldb_r12d_x86_64, // Low 32 bits or r12 89 lldb_r13d_x86_64, // Low 32 bits or r13 90 lldb_r14d_x86_64, // Low 32 bits or r14 91 lldb_r15d_x86_64, // Low 32 bits or r15 92 lldb_ax_x86_64, lldb_bx_x86_64, lldb_cx_x86_64, lldb_dx_x86_64, 93 lldb_di_x86_64, lldb_si_x86_64, lldb_bp_x86_64, lldb_sp_x86_64, 94 lldb_r8w_x86_64, // Low 16 bits or r8 95 lldb_r9w_x86_64, // Low 16 bits or r9 96 lldb_r10w_x86_64, // Low 16 bits or r10 97 lldb_r11w_x86_64, // Low 16 bits or r11 98 lldb_r12w_x86_64, // Low 16 bits or r12 99 lldb_r13w_x86_64, // Low 16 bits or r13 100 lldb_r14w_x86_64, // Low 16 bits or r14 101 lldb_r15w_x86_64, // Low 16 bits or r15 102 lldb_ah_x86_64, lldb_bh_x86_64, lldb_ch_x86_64, lldb_dh_x86_64, 103 lldb_al_x86_64, lldb_bl_x86_64, lldb_cl_x86_64, lldb_dl_x86_64, 104 lldb_dil_x86_64, lldb_sil_x86_64, lldb_bpl_x86_64, lldb_spl_x86_64, 105 lldb_r8l_x86_64, // Low 8 bits or r8 106 lldb_r9l_x86_64, // Low 8 bits or r9 107 lldb_r10l_x86_64, // Low 8 bits or r10 108 lldb_r11l_x86_64, // Low 8 bits or r11 109 lldb_r12l_x86_64, // Low 8 bits or r12 110 lldb_r13l_x86_64, // Low 8 bits or r13 111 lldb_r14l_x86_64, // Low 8 bits or r14 112 lldb_r15l_x86_64, // Low 8 bits or r15 113 LLDB_INVALID_REGNUM // Register sets must be terminated with 114 // LLDB_INVALID_REGNUM. 115 }; 116 static_assert((sizeof(g_gpr_regnums_x86_64) / sizeof(g_gpr_regnums_x86_64[0])) - 117 1 == 118 k_num_gpr_registers_x86_64, 119 "g_gpr_regnums_x86_64 has wrong number of register infos"); 120 121 static const uint32_t g_lldb_regnums_x86_64[] = { 122 lldb_fctrl_x86_64, lldb_fstat_x86_64, lldb_ftag_x86_64, 123 lldb_fop_x86_64, lldb_fiseg_x86_64, lldb_fioff_x86_64, 124 lldb_fip_x86_64, lldb_foseg_x86_64, lldb_fooff_x86_64, 125 lldb_fdp_x86_64, lldb_mxcsr_x86_64, lldb_mxcsrmask_x86_64, 126 lldb_st0_x86_64, lldb_st1_x86_64, lldb_st2_x86_64, 127 lldb_st3_x86_64, lldb_st4_x86_64, lldb_st5_x86_64, 128 lldb_st6_x86_64, lldb_st7_x86_64, lldb_mm0_x86_64, 129 lldb_mm1_x86_64, lldb_mm2_x86_64, lldb_mm3_x86_64, 130 lldb_mm4_x86_64, lldb_mm5_x86_64, lldb_mm6_x86_64, 131 lldb_mm7_x86_64, lldb_xmm0_x86_64, lldb_xmm1_x86_64, 132 lldb_xmm2_x86_64, lldb_xmm3_x86_64, lldb_xmm4_x86_64, 133 lldb_xmm5_x86_64, lldb_xmm6_x86_64, lldb_xmm7_x86_64, 134 lldb_xmm8_x86_64, lldb_xmm9_x86_64, lldb_xmm10_x86_64, 135 lldb_xmm11_x86_64, lldb_xmm12_x86_64, lldb_xmm13_x86_64, 136 lldb_xmm14_x86_64, lldb_xmm15_x86_64, 137 LLDB_INVALID_REGNUM // Register sets must be terminated with 138 // LLDB_INVALID_REGNUM. 139 }; 140 static_assert((sizeof(g_lldb_regnums_x86_64) / 141 sizeof(g_lldb_regnums_x86_64[0])) - 142 1 == 143 k_num_fpr_registers_x86_64, 144 "g_lldb_regnums_x86_64 has wrong number of register infos"); 145 146 static const uint32_t g_avx_regnums_x86_64[] = { 147 lldb_ymm0_x86_64, lldb_ymm1_x86_64, lldb_ymm2_x86_64, lldb_ymm3_x86_64, 148 lldb_ymm4_x86_64, lldb_ymm5_x86_64, lldb_ymm6_x86_64, lldb_ymm7_x86_64, 149 lldb_ymm8_x86_64, lldb_ymm9_x86_64, lldb_ymm10_x86_64, lldb_ymm11_x86_64, 150 lldb_ymm12_x86_64, lldb_ymm13_x86_64, lldb_ymm14_x86_64, lldb_ymm15_x86_64, 151 LLDB_INVALID_REGNUM // Register sets must be terminated with 152 // LLDB_INVALID_REGNUM. 153 }; 154 static_assert((sizeof(g_avx_regnums_x86_64) / sizeof(g_avx_regnums_x86_64[0])) - 155 1 == 156 k_num_avx_registers_x86_64, 157 "g_avx_regnums_x86_64 has wrong number of register infos"); 158 159 uint32_t RegisterContextPOSIX_x86::g_contained_eax[] = {lldb_eax_i386, 160 LLDB_INVALID_REGNUM}; 161 uint32_t RegisterContextPOSIX_x86::g_contained_ebx[] = {lldb_ebx_i386, 162 LLDB_INVALID_REGNUM}; 163 uint32_t RegisterContextPOSIX_x86::g_contained_ecx[] = {lldb_ecx_i386, 164 LLDB_INVALID_REGNUM}; 165 uint32_t RegisterContextPOSIX_x86::g_contained_edx[] = {lldb_edx_i386, 166 LLDB_INVALID_REGNUM}; 167 uint32_t RegisterContextPOSIX_x86::g_contained_edi[] = {lldb_edi_i386, 168 LLDB_INVALID_REGNUM}; 169 uint32_t RegisterContextPOSIX_x86::g_contained_esi[] = {lldb_esi_i386, 170 LLDB_INVALID_REGNUM}; 171 uint32_t RegisterContextPOSIX_x86::g_contained_ebp[] = {lldb_ebp_i386, 172 LLDB_INVALID_REGNUM}; 173 uint32_t RegisterContextPOSIX_x86::g_contained_esp[] = {lldb_esp_i386, 174 LLDB_INVALID_REGNUM}; 175 176 uint32_t RegisterContextPOSIX_x86::g_invalidate_eax[] = { 177 lldb_eax_i386, lldb_ax_i386, lldb_ah_i386, lldb_al_i386, 178 LLDB_INVALID_REGNUM}; 179 uint32_t RegisterContextPOSIX_x86::g_invalidate_ebx[] = { 180 lldb_ebx_i386, lldb_bx_i386, lldb_bh_i386, lldb_bl_i386, 181 LLDB_INVALID_REGNUM}; 182 uint32_t RegisterContextPOSIX_x86::g_invalidate_ecx[] = { 183 lldb_ecx_i386, lldb_cx_i386, lldb_ch_i386, lldb_cl_i386, 184 LLDB_INVALID_REGNUM}; 185 uint32_t RegisterContextPOSIX_x86::g_invalidate_edx[] = { 186 lldb_edx_i386, lldb_dx_i386, lldb_dh_i386, lldb_dl_i386, 187 LLDB_INVALID_REGNUM}; 188 uint32_t RegisterContextPOSIX_x86::g_invalidate_edi[] = { 189 lldb_edi_i386, lldb_di_i386, LLDB_INVALID_REGNUM}; 190 uint32_t RegisterContextPOSIX_x86::g_invalidate_esi[] = { 191 lldb_esi_i386, lldb_si_i386, LLDB_INVALID_REGNUM}; 192 uint32_t RegisterContextPOSIX_x86::g_invalidate_ebp[] = { 193 lldb_ebp_i386, lldb_bp_i386, LLDB_INVALID_REGNUM}; 194 uint32_t RegisterContextPOSIX_x86::g_invalidate_esp[] = { 195 lldb_esp_i386, lldb_sp_i386, LLDB_INVALID_REGNUM}; 196 197 uint32_t RegisterContextPOSIX_x86::g_contained_rax[] = {lldb_rax_x86_64, 198 LLDB_INVALID_REGNUM}; 199 uint32_t RegisterContextPOSIX_x86::g_contained_rbx[] = {lldb_rbx_x86_64, 200 LLDB_INVALID_REGNUM}; 201 uint32_t RegisterContextPOSIX_x86::g_contained_rcx[] = {lldb_rcx_x86_64, 202 LLDB_INVALID_REGNUM}; 203 uint32_t RegisterContextPOSIX_x86::g_contained_rdx[] = {lldb_rdx_x86_64, 204 LLDB_INVALID_REGNUM}; 205 uint32_t RegisterContextPOSIX_x86::g_contained_rdi[] = {lldb_rdi_x86_64, 206 LLDB_INVALID_REGNUM}; 207 uint32_t RegisterContextPOSIX_x86::g_contained_rsi[] = {lldb_rsi_x86_64, 208 LLDB_INVALID_REGNUM}; 209 uint32_t RegisterContextPOSIX_x86::g_contained_rbp[] = {lldb_rbp_x86_64, 210 LLDB_INVALID_REGNUM}; 211 uint32_t RegisterContextPOSIX_x86::g_contained_rsp[] = {lldb_rsp_x86_64, 212 LLDB_INVALID_REGNUM}; 213 uint32_t RegisterContextPOSIX_x86::g_contained_r8[] = {lldb_r8_x86_64, 214 LLDB_INVALID_REGNUM}; 215 uint32_t RegisterContextPOSIX_x86::g_contained_r9[] = {lldb_r9_x86_64, 216 LLDB_INVALID_REGNUM}; 217 uint32_t RegisterContextPOSIX_x86::g_contained_r10[] = {lldb_r10_x86_64, 218 LLDB_INVALID_REGNUM}; 219 uint32_t RegisterContextPOSIX_x86::g_contained_r11[] = {lldb_r11_x86_64, 220 LLDB_INVALID_REGNUM}; 221 uint32_t RegisterContextPOSIX_x86::g_contained_r12[] = {lldb_r12_x86_64, 222 LLDB_INVALID_REGNUM}; 223 uint32_t RegisterContextPOSIX_x86::g_contained_r13[] = {lldb_r13_x86_64, 224 LLDB_INVALID_REGNUM}; 225 uint32_t RegisterContextPOSIX_x86::g_contained_r14[] = {lldb_r14_x86_64, 226 LLDB_INVALID_REGNUM}; 227 uint32_t RegisterContextPOSIX_x86::g_contained_r15[] = {lldb_r15_x86_64, 228 LLDB_INVALID_REGNUM}; 229 230 uint32_t RegisterContextPOSIX_x86::g_invalidate_rax[] = { 231 lldb_rax_x86_64, lldb_eax_x86_64, lldb_ax_x86_64, 232 lldb_ah_x86_64, lldb_al_x86_64, LLDB_INVALID_REGNUM}; 233 uint32_t RegisterContextPOSIX_x86::g_invalidate_rbx[] = { 234 lldb_rbx_x86_64, lldb_ebx_x86_64, lldb_bx_x86_64, 235 lldb_bh_x86_64, lldb_bl_x86_64, LLDB_INVALID_REGNUM}; 236 uint32_t RegisterContextPOSIX_x86::g_invalidate_rcx[] = { 237 lldb_rcx_x86_64, lldb_ecx_x86_64, lldb_cx_x86_64, 238 lldb_ch_x86_64, lldb_cl_x86_64, LLDB_INVALID_REGNUM}; 239 uint32_t RegisterContextPOSIX_x86::g_invalidate_rdx[] = { 240 lldb_rdx_x86_64, lldb_edx_x86_64, lldb_dx_x86_64, 241 lldb_dh_x86_64, lldb_dl_x86_64, LLDB_INVALID_REGNUM}; 242 uint32_t RegisterContextPOSIX_x86::g_invalidate_rdi[] = { 243 lldb_rdi_x86_64, lldb_edi_x86_64, lldb_di_x86_64, lldb_dil_x86_64, 244 LLDB_INVALID_REGNUM}; 245 uint32_t RegisterContextPOSIX_x86::g_invalidate_rsi[] = { 246 lldb_rsi_x86_64, lldb_esi_x86_64, lldb_si_x86_64, lldb_sil_x86_64, 247 LLDB_INVALID_REGNUM}; 248 uint32_t RegisterContextPOSIX_x86::g_invalidate_rbp[] = { 249 lldb_rbp_x86_64, lldb_ebp_x86_64, lldb_bp_x86_64, lldb_bpl_x86_64, 250 LLDB_INVALID_REGNUM}; 251 uint32_t RegisterContextPOSIX_x86::g_invalidate_rsp[] = { 252 lldb_rsp_x86_64, lldb_esp_x86_64, lldb_sp_x86_64, lldb_spl_x86_64, 253 LLDB_INVALID_REGNUM}; 254 uint32_t RegisterContextPOSIX_x86::g_invalidate_r8[] = { 255 lldb_r8_x86_64, lldb_r8d_x86_64, lldb_r8w_x86_64, lldb_r8l_x86_64, 256 LLDB_INVALID_REGNUM}; 257 uint32_t RegisterContextPOSIX_x86::g_invalidate_r9[] = { 258 lldb_r9_x86_64, lldb_r9d_x86_64, lldb_r9w_x86_64, lldb_r9l_x86_64, 259 LLDB_INVALID_REGNUM}; 260 uint32_t RegisterContextPOSIX_x86::g_invalidate_r10[] = { 261 lldb_r10_x86_64, lldb_r10d_x86_64, lldb_r10w_x86_64, lldb_r10l_x86_64, 262 LLDB_INVALID_REGNUM}; 263 uint32_t RegisterContextPOSIX_x86::g_invalidate_r11[] = { 264 lldb_r11_x86_64, lldb_r11d_x86_64, lldb_r11w_x86_64, lldb_r11l_x86_64, 265 LLDB_INVALID_REGNUM}; 266 uint32_t RegisterContextPOSIX_x86::g_invalidate_r12[] = { 267 lldb_r12_x86_64, lldb_r12d_x86_64, lldb_r12w_x86_64, lldb_r12l_x86_64, 268 LLDB_INVALID_REGNUM}; 269 uint32_t RegisterContextPOSIX_x86::g_invalidate_r13[] = { 270 lldb_r13_x86_64, lldb_r13d_x86_64, lldb_r13w_x86_64, lldb_r13l_x86_64, 271 LLDB_INVALID_REGNUM}; 272 uint32_t RegisterContextPOSIX_x86::g_invalidate_r14[] = { 273 lldb_r14_x86_64, lldb_r14d_x86_64, lldb_r14w_x86_64, lldb_r14l_x86_64, 274 LLDB_INVALID_REGNUM}; 275 uint32_t RegisterContextPOSIX_x86::g_invalidate_r15[] = { 276 lldb_r15_x86_64, lldb_r15d_x86_64, lldb_r15w_x86_64, lldb_r15l_x86_64, 277 LLDB_INVALID_REGNUM}; 278 279 uint32_t RegisterContextPOSIX_x86::g_contained_fip[] = {lldb_fip_x86_64, 280 LLDB_INVALID_REGNUM}; 281 uint32_t RegisterContextPOSIX_x86::g_contained_fdp[] = {lldb_fdp_x86_64, 282 LLDB_INVALID_REGNUM}; 283 284 uint32_t RegisterContextPOSIX_x86::g_invalidate_fip[] = { 285 lldb_fip_x86_64, lldb_fioff_x86_64, lldb_fiseg_x86_64, LLDB_INVALID_REGNUM}; 286 uint32_t RegisterContextPOSIX_x86::g_invalidate_fdp[] = { 287 lldb_fdp_x86_64, lldb_fooff_x86_64, lldb_foseg_x86_64, LLDB_INVALID_REGNUM}; 288 289 uint32_t RegisterContextPOSIX_x86::g_contained_st0_32[] = {lldb_st0_i386, 290 LLDB_INVALID_REGNUM}; 291 uint32_t RegisterContextPOSIX_x86::g_contained_st1_32[] = {lldb_st1_i386, 292 LLDB_INVALID_REGNUM}; 293 uint32_t RegisterContextPOSIX_x86::g_contained_st2_32[] = {lldb_st2_i386, 294 LLDB_INVALID_REGNUM}; 295 uint32_t RegisterContextPOSIX_x86::g_contained_st3_32[] = {lldb_st3_i386, 296 LLDB_INVALID_REGNUM}; 297 uint32_t RegisterContextPOSIX_x86::g_contained_st4_32[] = {lldb_st4_i386, 298 LLDB_INVALID_REGNUM}; 299 uint32_t RegisterContextPOSIX_x86::g_contained_st5_32[] = {lldb_st5_i386, 300 LLDB_INVALID_REGNUM}; 301 uint32_t RegisterContextPOSIX_x86::g_contained_st6_32[] = {lldb_st6_i386, 302 LLDB_INVALID_REGNUM}; 303 uint32_t RegisterContextPOSIX_x86::g_contained_st7_32[] = {lldb_st7_i386, 304 LLDB_INVALID_REGNUM}; 305 306 uint32_t RegisterContextPOSIX_x86::g_invalidate_st0_32[] = { 307 lldb_st0_i386, lldb_mm0_i386, LLDB_INVALID_REGNUM}; 308 uint32_t RegisterContextPOSIX_x86::g_invalidate_st1_32[] = { 309 lldb_st1_i386, lldb_mm1_i386, LLDB_INVALID_REGNUM}; 310 uint32_t RegisterContextPOSIX_x86::g_invalidate_st2_32[] = { 311 lldb_st2_i386, lldb_mm2_i386, LLDB_INVALID_REGNUM}; 312 uint32_t RegisterContextPOSIX_x86::g_invalidate_st3_32[] = { 313 lldb_st3_i386, lldb_mm3_i386, LLDB_INVALID_REGNUM}; 314 uint32_t RegisterContextPOSIX_x86::g_invalidate_st4_32[] = { 315 lldb_st4_i386, lldb_mm4_i386, LLDB_INVALID_REGNUM}; 316 uint32_t RegisterContextPOSIX_x86::g_invalidate_st5_32[] = { 317 lldb_st5_i386, lldb_mm5_i386, LLDB_INVALID_REGNUM}; 318 uint32_t RegisterContextPOSIX_x86::g_invalidate_st6_32[] = { 319 lldb_st6_i386, lldb_mm6_i386, LLDB_INVALID_REGNUM}; 320 uint32_t RegisterContextPOSIX_x86::g_invalidate_st7_32[] = { 321 lldb_st7_i386, lldb_mm7_i386, LLDB_INVALID_REGNUM}; 322 323 uint32_t RegisterContextPOSIX_x86::g_contained_st0_64[] = {lldb_st0_x86_64, 324 LLDB_INVALID_REGNUM}; 325 uint32_t RegisterContextPOSIX_x86::g_contained_st1_64[] = {lldb_st1_x86_64, 326 LLDB_INVALID_REGNUM}; 327 uint32_t RegisterContextPOSIX_x86::g_contained_st2_64[] = {lldb_st2_x86_64, 328 LLDB_INVALID_REGNUM}; 329 uint32_t RegisterContextPOSIX_x86::g_contained_st3_64[] = {lldb_st3_x86_64, 330 LLDB_INVALID_REGNUM}; 331 uint32_t RegisterContextPOSIX_x86::g_contained_st4_64[] = {lldb_st4_x86_64, 332 LLDB_INVALID_REGNUM}; 333 uint32_t RegisterContextPOSIX_x86::g_contained_st5_64[] = {lldb_st5_x86_64, 334 LLDB_INVALID_REGNUM}; 335 uint32_t RegisterContextPOSIX_x86::g_contained_st6_64[] = {lldb_st6_x86_64, 336 LLDB_INVALID_REGNUM}; 337 uint32_t RegisterContextPOSIX_x86::g_contained_st7_64[] = {lldb_st7_x86_64, 338 LLDB_INVALID_REGNUM}; 339 340 uint32_t RegisterContextPOSIX_x86::g_invalidate_st0_64[] = { 341 lldb_st0_x86_64, lldb_mm0_x86_64, LLDB_INVALID_REGNUM}; 342 uint32_t RegisterContextPOSIX_x86::g_invalidate_st1_64[] = { 343 lldb_st1_x86_64, lldb_mm1_x86_64, LLDB_INVALID_REGNUM}; 344 uint32_t RegisterContextPOSIX_x86::g_invalidate_st2_64[] = { 345 lldb_st2_x86_64, lldb_mm2_x86_64, LLDB_INVALID_REGNUM}; 346 uint32_t RegisterContextPOSIX_x86::g_invalidate_st3_64[] = { 347 lldb_st3_x86_64, lldb_mm3_x86_64, LLDB_INVALID_REGNUM}; 348 uint32_t RegisterContextPOSIX_x86::g_invalidate_st4_64[] = { 349 lldb_st4_x86_64, lldb_mm4_x86_64, LLDB_INVALID_REGNUM}; 350 uint32_t RegisterContextPOSIX_x86::g_invalidate_st5_64[] = { 351 lldb_st5_x86_64, lldb_mm5_x86_64, LLDB_INVALID_REGNUM}; 352 uint32_t RegisterContextPOSIX_x86::g_invalidate_st6_64[] = { 353 lldb_st6_x86_64, lldb_mm6_x86_64, LLDB_INVALID_REGNUM}; 354 uint32_t RegisterContextPOSIX_x86::g_invalidate_st7_64[] = { 355 lldb_st7_x86_64, lldb_mm7_x86_64, LLDB_INVALID_REGNUM}; 356 357 // Number of register sets provided by this context. 358 enum { k_num_extended_register_sets = 1, k_num_register_sets = 3 }; 359 360 static const RegisterSet g_reg_sets_i386[k_num_register_sets] = { 361 {"General Purpose Registers", "gpr", k_num_gpr_registers_i386, 362 g_gpr_regnums_i386}, 363 {"Floating Point Registers", "fpu", k_num_fpr_registers_i386, 364 g_lldb_regnums_i386}, 365 {"Advanced Vector Extensions", "avx", k_num_avx_registers_i386, 366 g_avx_regnums_i386}}; 367 368 static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = { 369 {"General Purpose Registers", "gpr", k_num_gpr_registers_x86_64, 370 g_gpr_regnums_x86_64}, 371 {"Floating Point Registers", "fpu", k_num_fpr_registers_x86_64, 372 g_lldb_regnums_x86_64}, 373 {"Advanced Vector Extensions", "avx", k_num_avx_registers_x86_64, 374 g_avx_regnums_x86_64}}; 375 376 bool RegisterContextPOSIX_x86::IsGPR(unsigned reg) { 377 return reg <= m_reg_info.last_gpr; // GPR's come first. 378 } 379 380 bool RegisterContextPOSIX_x86::IsFPR(unsigned reg) { 381 return (m_reg_info.first_fpr <= reg && reg <= m_reg_info.last_fpr); 382 } 383 384 bool RegisterContextPOSIX_x86::IsAVX(unsigned reg) { 385 return (m_reg_info.first_ymm <= reg && reg <= m_reg_info.last_ymm); 386 } 387 388 bool RegisterContextPOSIX_x86::IsFPR(unsigned reg, FPRType fpr_type) { 389 bool generic_fpr = IsFPR(reg); 390 391 if (fpr_type == eXSAVE) 392 return generic_fpr || IsAVX(reg); 393 return generic_fpr; 394 } 395 396 RegisterContextPOSIX_x86::RegisterContextPOSIX_x86( 397 Thread &thread, uint32_t concrete_frame_idx, 398 RegisterInfoInterface *register_info) 399 : RegisterContext(thread, concrete_frame_idx) { 400 m_register_info_up.reset(register_info); 401 402 switch (register_info->m_target_arch.GetMachine()) { 403 case llvm::Triple::x86: 404 m_reg_info.num_registers = k_num_registers_i386; 405 m_reg_info.num_gpr_registers = k_num_gpr_registers_i386; 406 m_reg_info.num_fpr_registers = k_num_fpr_registers_i386; 407 m_reg_info.num_avx_registers = k_num_avx_registers_i386; 408 m_reg_info.last_gpr = k_last_gpr_i386; 409 m_reg_info.first_fpr = k_first_fpr_i386; 410 m_reg_info.last_fpr = k_last_fpr_i386; 411 m_reg_info.first_st = lldb_st0_i386; 412 m_reg_info.last_st = lldb_st7_i386; 413 m_reg_info.first_mm = lldb_mm0_i386; 414 m_reg_info.last_mm = lldb_mm7_i386; 415 m_reg_info.first_xmm = lldb_xmm0_i386; 416 m_reg_info.last_xmm = lldb_xmm7_i386; 417 m_reg_info.first_ymm = lldb_ymm0_i386; 418 m_reg_info.last_ymm = lldb_ymm7_i386; 419 m_reg_info.first_dr = lldb_dr0_i386; 420 m_reg_info.gpr_flags = lldb_eflags_i386; 421 break; 422 case llvm::Triple::x86_64: 423 m_reg_info.num_registers = k_num_registers_x86_64; 424 m_reg_info.num_gpr_registers = k_num_gpr_registers_x86_64; 425 m_reg_info.num_fpr_registers = k_num_fpr_registers_x86_64; 426 m_reg_info.num_avx_registers = k_num_avx_registers_x86_64; 427 m_reg_info.last_gpr = k_last_gpr_x86_64; 428 m_reg_info.first_fpr = k_first_fpr_x86_64; 429 m_reg_info.last_fpr = k_last_fpr_x86_64; 430 m_reg_info.first_st = lldb_st0_x86_64; 431 m_reg_info.last_st = lldb_st7_x86_64; 432 m_reg_info.first_mm = lldb_mm0_x86_64; 433 m_reg_info.last_mm = lldb_mm7_x86_64; 434 m_reg_info.first_xmm = lldb_xmm0_x86_64; 435 m_reg_info.last_xmm = lldb_xmm15_x86_64; 436 m_reg_info.first_ymm = lldb_ymm0_x86_64; 437 m_reg_info.last_ymm = lldb_ymm15_x86_64; 438 m_reg_info.first_dr = lldb_dr0_x86_64; 439 m_reg_info.gpr_flags = lldb_rflags_x86_64; 440 break; 441 default: 442 assert(false && "Unhandled target architecture."); 443 break; 444 } 445 446 ::memset(&m_fpr, 0, sizeof(FPR)); 447 ::memset(&m_ymm_set, 0, sizeof(YMM)); 448 449 m_fpr_type = eNotValid; 450 } 451 452 RegisterContextPOSIX_x86::~RegisterContextPOSIX_x86() = default; 453 454 RegisterContextPOSIX_x86::FPRType RegisterContextPOSIX_x86::GetFPRType() { 455 if (m_fpr_type == eNotValid) { 456 // TODO: Use assembly to call cpuid on the inferior and query ebx or ecx 457 m_fpr_type = eXSAVE; // extended floating-point registers, if available 458 if (!ReadFPR()) 459 m_fpr_type = eFXSAVE; // assume generic floating-point registers 460 } 461 return m_fpr_type; 462 } 463 464 void RegisterContextPOSIX_x86::Invalidate() {} 465 466 void RegisterContextPOSIX_x86::InvalidateAllRegisters() {} 467 468 unsigned RegisterContextPOSIX_x86::GetRegisterOffset(unsigned reg) { 469 assert(reg < m_reg_info.num_registers && "Invalid register number."); 470 return GetRegisterInfo()[reg].byte_offset; 471 } 472 473 unsigned RegisterContextPOSIX_x86::GetRegisterSize(unsigned reg) { 474 assert(reg < m_reg_info.num_registers && "Invalid register number."); 475 return GetRegisterInfo()[reg].byte_size; 476 } 477 478 size_t RegisterContextPOSIX_x86::GetRegisterCount() { 479 size_t num_registers = 480 m_reg_info.num_gpr_registers + m_reg_info.num_fpr_registers; 481 if (GetFPRType() == eXSAVE) 482 return num_registers + m_reg_info.num_avx_registers; 483 return num_registers; 484 } 485 486 size_t RegisterContextPOSIX_x86::GetGPRSize() { 487 return m_register_info_up->GetGPRSize(); 488 } 489 490 size_t RegisterContextPOSIX_x86::GetFXSAVEOffset() { 491 return GetRegisterInfo()[m_reg_info.first_fpr].byte_offset; 492 } 493 494 const RegisterInfo *RegisterContextPOSIX_x86::GetRegisterInfo() { 495 // Commonly, this method is overridden and g_register_infos is copied and 496 // specialized. So, use GetRegisterInfo() rather than g_register_infos in 497 // this scope. 498 return m_register_info_up->GetRegisterInfo(); 499 } 500 501 const RegisterInfo * 502 RegisterContextPOSIX_x86::GetRegisterInfoAtIndex(size_t reg) { 503 if (reg < m_reg_info.num_registers) 504 return &GetRegisterInfo()[reg]; 505 else 506 return nullptr; 507 } 508 509 size_t RegisterContextPOSIX_x86::GetRegisterSetCount() { 510 size_t sets = 0; 511 for (size_t set = 0; set < k_num_register_sets; ++set) { 512 if (IsRegisterSetAvailable(set)) 513 ++sets; 514 } 515 516 return sets; 517 } 518 519 const RegisterSet *RegisterContextPOSIX_x86::GetRegisterSet(size_t set) { 520 if (IsRegisterSetAvailable(set)) { 521 switch (m_register_info_up->m_target_arch.GetMachine()) { 522 case llvm::Triple::x86: 523 return &g_reg_sets_i386[set]; 524 case llvm::Triple::x86_64: 525 return &g_reg_sets_x86_64[set]; 526 default: 527 assert(false && "Unhandled target architecture."); 528 return nullptr; 529 } 530 } 531 return nullptr; 532 } 533 534 const char *RegisterContextPOSIX_x86::GetRegisterName(unsigned reg) { 535 assert(reg < m_reg_info.num_registers && "Invalid register offset."); 536 return GetRegisterInfo()[reg].name; 537 } 538 539 // Parse ymm registers and into xmm.bytes and ymmh.bytes. 540 bool RegisterContextPOSIX_x86::CopyYMMtoXSTATE(uint32_t reg, 541 lldb::ByteOrder byte_order) { 542 if (!IsAVX(reg)) 543 return false; 544 545 if (byte_order == eByteOrderLittle) { 546 uint32_t reg_no = reg - m_reg_info.first_ymm; 547 YMMToXState(m_ymm_set.ymm[reg_no], 548 m_fpr.fxsave.xmm[reg_no].bytes, 549 m_fpr.xsave.ymmh[reg_no].bytes); 550 return true; 551 } 552 553 return false; // unsupported or invalid byte order 554 } 555 556 // Concatenate xmm.bytes with ymmh.bytes 557 bool RegisterContextPOSIX_x86::CopyXSTATEtoYMM(uint32_t reg, 558 lldb::ByteOrder byte_order) { 559 if (!IsAVX(reg)) 560 return false; 561 562 if (byte_order == eByteOrderLittle) { 563 uint32_t reg_no = reg - m_reg_info.first_ymm; 564 m_ymm_set.ymm[reg_no] = XStateToYMM( 565 m_fpr.fxsave.xmm[reg_no].bytes, 566 m_fpr.xsave.ymmh[reg_no].bytes); 567 return true; 568 } 569 570 return false; // unsupported or invalid byte order 571 } 572 573 bool RegisterContextPOSIX_x86::IsRegisterSetAvailable(size_t set_index) { 574 // Note: Extended register sets are assumed to be at the end of g_reg_sets... 575 size_t num_sets = k_num_register_sets - k_num_extended_register_sets; 576 577 if (GetFPRType() == eXSAVE) // ...and to start with AVX registers. 578 ++num_sets; 579 return (set_index < num_sets); 580 } 581