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1//===-- RegisterInfos_i386.h ------------------------------------*- C++ -*-===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/Support/Compiler.h"10#include <cstddef>11#include <cstdint>12 13 14#ifdef DECLARE_REGISTER_INFOS_I386_STRUCT15 16// Computes the offset of the given GPR in the user data area.17#define GPR_OFFSET(regname) (LLVM_EXTENSION offsetof(GPR, regname))18 19// Computes the offset of the given FPR in the extended data area.20#define FPR_OFFSET(regname) \21 (LLVM_EXTENSION offsetof(UserArea, i387) + \22 LLVM_EXTENSION offsetof(FPR_i386, regname))23 24// Computes the offset of the YMM register assembled from register halves.25// Based on DNBArchImplI386.cpp from debugserver26#define YMM_OFFSET(reg_index) \27 (LLVM_EXTENSION offsetof(UserArea, i387) + \28 LLVM_EXTENSION offsetof(FPR, fxsave) + \29 LLVM_EXTENSION offsetof(FXSAVE, xmm[7]) + sizeof(XMMReg) + \30 (32 * reg_index))31 32#define BNDR_OFFSET(reg_index) \33 (LLVM_EXTENSION offsetof(UserArea, i387) + \34 LLVM_EXTENSION offsetof(FPR, xsave) + \35 LLVM_EXTENSION offsetof(XSAVE, mpxr[reg_index]))36 37#define BNDC_OFFSET(reg_index) \38 (LLVM_EXTENSION offsetof(UserArea, i387) + \39 LLVM_EXTENSION offsetof(FPR, xsave) + \40 LLVM_EXTENSION offsetof(XSAVE, mpxc[reg_index]))41 42// Number of bytes needed to represent a FPR.43#if !defined(FPR_SIZE)44#define FPR_SIZE(reg) sizeof(((FXSAVE *)nullptr)->reg)45#endif46 47// Number of bytes needed to represent the i'th FP register.48#define FP_SIZE sizeof(((MMSReg *)nullptr)->bytes)49 50// Number of bytes needed to represent an XMM register.51#define XMM_SIZE sizeof(XMMReg)52 53// Number of bytes needed to represent a YMM register.54#define YMM_SIZE sizeof(YMMReg)55 56// Number of bytes needed to represent MPX registers.57#define BNDR_SIZE sizeof(MPXReg)58#define BNDC_SIZE sizeof(MPXCsr)59 60// Note that the size and offset will be updated by platform-specific classes.61#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \62 { \63 #reg, alt, sizeof(((GPR *)nullptr)->reg), \64 GPR_OFFSET(reg), eEncodingUint, eFormatHex, \65 {kind1, kind2, kind3, kind4, \66 lldb_##reg##_i386 }, \67 nullptr, nullptr, nullptr, \68 }69 70#define DEFINE_FPR(name, reg, kind1, kind2, kind3, kind4) \71 { \72 #name, nullptr, FPR_SIZE(reg), FPR_OFFSET(reg), eEncodingUint, eFormatHex, \73 {kind1, kind2, kind3, kind4, \74 lldb_##name##_i386 }, \75 nullptr, nullptr, nullptr, \76 }77 78// RegisterKind: EHFrame, DWARF, Generic, Process Plugin, LLDB79 80#define DEFINE_FP_ST(reg, i) \81 { \82 #reg #i, nullptr, FP_SIZE, \83 LLVM_EXTENSION FPR_OFFSET( \84 stmm[i]), eEncodingVector, eFormatVectorOfUInt8, \85 {ehframe_st##i##_i386, dwarf_st##i##_i386, LLDB_INVALID_REGNUM, \86 LLDB_INVALID_REGNUM, lldb_st##i##_i386 }, \87 nullptr, nullptr, nullptr, \88 }89 90#define DEFINE_FP_MM(reg, i, streg) \91 { \92 #reg #i, nullptr, sizeof(uint64_t), LLVM_EXTENSION FPR_OFFSET(stmm[i]), \93 eEncodingUint, eFormatHex, \94 {dwarf_mm##i##_i386, dwarf_mm##i##_i386, LLDB_INVALID_REGNUM, \95 LLDB_INVALID_REGNUM, lldb_mm##i##_i386 }, \96 RegisterContextPOSIX_x86::g_contained_##streg##_32, \97 RegisterContextPOSIX_x86::g_invalidate_##streg##_32, \98 nullptr, \99 }100 101#define DEFINE_XMM(reg, i) \102 { \103 #reg #i, nullptr, XMM_SIZE, \104 LLVM_EXTENSION FPR_OFFSET( \105 reg[i]), eEncodingVector, eFormatVectorOfUInt8, \106 {ehframe_##reg##i##_i386, dwarf_##reg##i##_i386, \107 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_i386 }, \108 nullptr, nullptr, nullptr, \109 }110 111// I believe the YMM registers use dwarf_xmm_%_i386 register numbers and then112// differentiate based on register size.113#define DEFINE_YMM(reg, i) \114 { \115 #reg #i, nullptr, YMM_SIZE, \116 LLVM_EXTENSION YMM_OFFSET(i), eEncodingVector, eFormatVectorOfUInt8, \117 {LLDB_INVALID_REGNUM, dwarf_xmm##i##_i386, \118 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \119 lldb_##reg##i##_i386 }, \120 nullptr, nullptr, nullptr, \121 }122 123#define DEFINE_BNDR(reg, i) \124 { \125 #reg #i, nullptr, BNDR_SIZE, \126 LLVM_EXTENSION BNDR_OFFSET(i), eEncodingVector, eFormatVectorOfUInt64, \127 {dwarf_##reg##i##_i386, dwarf_##reg##i##_i386, LLDB_INVALID_REGNUM, \128 LLDB_INVALID_REGNUM, lldb_##reg##i##_i386 }, \129 nullptr, nullptr, nullptr, \130 }131 132#define DEFINE_BNDC(name, i) \133 { \134 #name, nullptr, BNDC_SIZE, \135 LLVM_EXTENSION BNDC_OFFSET(i), eEncodingVector, \136 eFormatVectorOfUInt8, \137 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \138 LLDB_INVALID_REGNUM, lldb_##name##_i386 }, \139 nullptr, nullptr, nullptr, \140 }141 142#define DEFINE_DR(reg, i) \143 { \144 #reg #i, nullptr, DR_SIZE, \145 DR_OFFSET(i), eEncodingUint, eFormatHex, \146 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \147 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \148 lldb_##reg##i##_i386 }, \149 nullptr, nullptr, nullptr, \150 }151 152#define DEFINE_GPR_PSEUDO_16(reg16, reg32) \153 { \154 #reg16, nullptr, 2, \155 GPR_OFFSET(reg32), eEncodingUint, eFormatHex, \156 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \157 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \158 lldb_##reg16##_i386 }, \159 RegisterContextPOSIX_x86::g_contained_##reg32, \160 RegisterContextPOSIX_x86::g_invalidate_##reg32, \161 nullptr, \162 }163 164#define DEFINE_GPR_PSEUDO_8H(reg8, reg32) \165 { \166 #reg8, nullptr, 1, \167 GPR_OFFSET(reg32) + 1, eEncodingUint, eFormatHex, \168 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \169 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \170 lldb_##reg8##_i386 }, \171 RegisterContextPOSIX_x86::g_contained_##reg32, \172 RegisterContextPOSIX_x86::g_invalidate_##reg32, \173 nullptr, \174 }175 176#define DEFINE_GPR_PSEUDO_8L(reg8, reg32) \177 { \178 #reg8, nullptr, 1, \179 GPR_OFFSET(reg32), eEncodingUint, eFormatHex, \180 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \181 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \182 lldb_##reg8##_i386 }, \183 RegisterContextPOSIX_x86::g_contained_##reg32, \184 RegisterContextPOSIX_x86::g_invalidate_##reg32, \185 nullptr, \186 }187 188static RegisterInfo g_register_infos_i386[] = {189 // General purpose registers.190 DEFINE_GPR(eax, nullptr, ehframe_eax_i386, dwarf_eax_i386,191 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),192 DEFINE_GPR(ebx, nullptr, ehframe_ebx_i386, dwarf_ebx_i386,193 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),194 DEFINE_GPR(ecx, nullptr, ehframe_ecx_i386, dwarf_ecx_i386,195 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),196 DEFINE_GPR(edx, nullptr, ehframe_edx_i386, dwarf_edx_i386,197 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),198 DEFINE_GPR(edi, nullptr, ehframe_edi_i386, dwarf_edi_i386,199 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),200 DEFINE_GPR(esi, nullptr, ehframe_esi_i386, dwarf_esi_i386,201 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),202 DEFINE_GPR(ebp, "fp", ehframe_ebp_i386, dwarf_ebp_i386,203 LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM),204 DEFINE_GPR(esp, "sp", ehframe_esp_i386, dwarf_esp_i386,205 LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),206 DEFINE_GPR(eip, "pc", ehframe_eip_i386, dwarf_eip_i386,207 LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),208 DEFINE_GPR(eflags, "flags", ehframe_eflags_i386, dwarf_eflags_i386,209 LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),210 DEFINE_GPR(cs, nullptr, LLDB_INVALID_REGNUM, dwarf_cs_i386,211 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),212 DEFINE_GPR(fs, nullptr, LLDB_INVALID_REGNUM, dwarf_fs_i386,213 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),214 DEFINE_GPR(gs, nullptr, LLDB_INVALID_REGNUM, dwarf_gs_i386,215 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),216 DEFINE_GPR(ss, nullptr, LLDB_INVALID_REGNUM, dwarf_ss_i386,217 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),218 DEFINE_GPR(ds, nullptr, LLDB_INVALID_REGNUM, dwarf_ds_i386,219 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),220 DEFINE_GPR(es, nullptr, LLDB_INVALID_REGNUM, dwarf_es_i386,221 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),222 223 DEFINE_GPR_PSEUDO_16(ax, eax), DEFINE_GPR_PSEUDO_16(bx, ebx),224 DEFINE_GPR_PSEUDO_16(cx, ecx), DEFINE_GPR_PSEUDO_16(dx, edx),225 DEFINE_GPR_PSEUDO_16(di, edi), DEFINE_GPR_PSEUDO_16(si, esi),226 DEFINE_GPR_PSEUDO_16(bp, ebp), DEFINE_GPR_PSEUDO_16(sp, esp),227 DEFINE_GPR_PSEUDO_8H(ah, eax), DEFINE_GPR_PSEUDO_8H(bh, ebx),228 DEFINE_GPR_PSEUDO_8H(ch, ecx), DEFINE_GPR_PSEUDO_8H(dh, edx),229 DEFINE_GPR_PSEUDO_8L(al, eax), DEFINE_GPR_PSEUDO_8L(bl, ebx),230 DEFINE_GPR_PSEUDO_8L(cl, ecx), DEFINE_GPR_PSEUDO_8L(dl, edx),231 232 // i387 Floating point registers.233 DEFINE_FPR(fctrl, fctrl, LLDB_INVALID_REGNUM, dwarf_fctrl_i386,234 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),235 DEFINE_FPR(fstat, fstat, LLDB_INVALID_REGNUM, dwarf_fstat_i386,236 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),237 DEFINE_FPR(ftag, ftag, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,238 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),239 DEFINE_FPR(fop, fop, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,240 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),241 DEFINE_FPR(fiseg, ptr.i386_.fiseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,242 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),243 DEFINE_FPR(fioff, ptr.i386_.fioff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,244 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),245 DEFINE_FPR(foseg, ptr.i386_.foseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,246 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),247 DEFINE_FPR(fooff, ptr.i386_.fooff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,248 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),249 DEFINE_FPR(mxcsr, mxcsr, LLDB_INVALID_REGNUM, dwarf_mxcsr_i386,250 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),251 DEFINE_FPR(mxcsrmask, mxcsrmask, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,252 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),253 254 // FP registers.255 DEFINE_FP_ST(st, 0), DEFINE_FP_ST(st, 1), DEFINE_FP_ST(st, 2),256 DEFINE_FP_ST(st, 3), DEFINE_FP_ST(st, 4), DEFINE_FP_ST(st, 5),257 DEFINE_FP_ST(st, 6), DEFINE_FP_ST(st, 7),258 259 DEFINE_FP_MM(mm, 0, st0), DEFINE_FP_MM(mm, 1, st1),260 DEFINE_FP_MM(mm, 2, st2), DEFINE_FP_MM(mm, 3, st3),261 DEFINE_FP_MM(mm, 4, st4), DEFINE_FP_MM(mm, 5, st5),262 DEFINE_FP_MM(mm, 6, st6), DEFINE_FP_MM(mm, 7, st7),263 264 // XMM registers265 DEFINE_XMM(xmm, 0), DEFINE_XMM(xmm, 1), DEFINE_XMM(xmm, 2),266 DEFINE_XMM(xmm, 3), DEFINE_XMM(xmm, 4), DEFINE_XMM(xmm, 5),267 DEFINE_XMM(xmm, 6), DEFINE_XMM(xmm, 7),268 269 // Copy of YMM registers assembled from xmm and ymmh270 DEFINE_YMM(ymm, 0), DEFINE_YMM(ymm, 1), DEFINE_YMM(ymm, 2),271 DEFINE_YMM(ymm, 3), DEFINE_YMM(ymm, 4), DEFINE_YMM(ymm, 5),272 DEFINE_YMM(ymm, 6), DEFINE_YMM(ymm, 7),273 274 // MPX registers275 DEFINE_BNDR(bnd, 0),276 DEFINE_BNDR(bnd, 1),277 DEFINE_BNDR(bnd, 2),278 DEFINE_BNDR(bnd, 3),279 280 DEFINE_BNDC(bndcfgu, 0),281 DEFINE_BNDC(bndstatus, 1),282 283 // Debug registers for lldb internal use284 DEFINE_DR(dr, 0), DEFINE_DR(dr, 1), DEFINE_DR(dr, 2), DEFINE_DR(dr, 3),285 DEFINE_DR(dr, 4), DEFINE_DR(dr, 5), DEFINE_DR(dr, 6), DEFINE_DR(dr, 7)};286 287static_assert((sizeof(g_register_infos_i386) /288 sizeof(g_register_infos_i386[0])) == k_num_registers_i386,289 "g_register_infos_x86_64 has wrong number of register infos");290 291#undef GPR_OFFSET292#undef FPR_OFFSET293#undef YMM_OFFSET294#undef FPR_SIZE295#undef FP_SIZE296#undef XMM_SIZE297#undef YMM_SIZE298#undef DEFINE_GPR299#undef DEFINE_FPR300#undef DEFINE_FP301#undef DEFINE_XMM302#undef DEFINE_YMM303#undef DEFINE_BNDR304#undef DEFINE_BNDC305#undef DEFINE_DR306#undef DEFINE_GPR_PSEUDO_16307#undef DEFINE_GPR_PSEUDO_8H308#undef DEFINE_GPR_PSEUDO_8L309 310#endif // DECLARE_REGISTER_INFOS_I386_STRUCT311