RegisterInfos_i386.h
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//===-- RegisterInfos_i386.h ------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Compiler.h"
#include <cstddef>
#include <cstdint>
#ifdef DECLARE_REGISTER_INFOS_I386_STRUCT
// Computes the offset of the given GPR in the user data area.
#define GPR_OFFSET(regname) (LLVM_EXTENSION offsetof(GPR, regname))
// Computes the offset of the given FPR in the extended data area.
#define FPR_OFFSET(regname) \
(LLVM_EXTENSION offsetof(UserArea, i387) + \
LLVM_EXTENSION offsetof(FPR_i386, regname))
// Computes the offset of the YMM register assembled from register halves.
// Based on DNBArchImplI386.cpp from debugserver
#define YMM_OFFSET(reg_index) \
(LLVM_EXTENSION offsetof(UserArea, i387) + \
LLVM_EXTENSION offsetof(FPR, fxsave) + \
LLVM_EXTENSION offsetof(FXSAVE, xmm[7]) + sizeof(XMMReg) + \
(32 * reg_index))
#define BNDR_OFFSET(reg_index) \
(LLVM_EXTENSION offsetof(UserArea, i387) + \
LLVM_EXTENSION offsetof(FPR, xsave) + \
LLVM_EXTENSION offsetof(XSAVE, mpxr[reg_index]))
#define BNDC_OFFSET(reg_index) \
(LLVM_EXTENSION offsetof(UserArea, i387) + \
LLVM_EXTENSION offsetof(FPR, xsave) + \
LLVM_EXTENSION offsetof(XSAVE, mpxc[reg_index]))
// Number of bytes needed to represent a FPR.
#if !defined(FPR_SIZE)
#define FPR_SIZE(reg) sizeof(((FXSAVE *)nullptr)->reg)
#endif
// Number of bytes needed to represent the i'th FP register.
#define FP_SIZE sizeof(((MMSReg *)nullptr)->bytes)
// Number of bytes needed to represent an XMM register.
#define XMM_SIZE sizeof(XMMReg)
// Number of bytes needed to represent a YMM register.
#define YMM_SIZE sizeof(YMMReg)
// Number of bytes needed to represent MPX registers.
#define BNDR_SIZE sizeof(MPXReg)
#define BNDC_SIZE sizeof(MPXCsr)
// Note that the size and offset will be updated by platform-specific classes.
#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \
{ \
#reg, alt, sizeof(((GPR *)nullptr)->reg), \
GPR_OFFSET(reg), eEncodingUint, eFormatHex, \
{kind1, kind2, kind3, kind4, \
lldb_##reg##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_FPR(name, reg, kind1, kind2, kind3, kind4) \
{ \
#name, nullptr, FPR_SIZE(reg), FPR_OFFSET(reg), eEncodingUint, eFormatHex, \
{kind1, kind2, kind3, kind4, \
lldb_##name##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
// RegisterKind: EHFrame, DWARF, Generic, Process Plugin, LLDB
#define DEFINE_FP_ST(reg, i) \
{ \
#reg #i, nullptr, FP_SIZE, \
LLVM_EXTENSION FPR_OFFSET( \
stmm[i]), eEncodingVector, eFormatVectorOfUInt8, \
{ehframe_st##i##_i386, dwarf_st##i##_i386, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, lldb_st##i##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_FP_MM(reg, i) \
{ \
#reg #i, nullptr, sizeof(uint64_t), \
LLVM_EXTENSION FPR_OFFSET( \
stmm[i]), eEncodingUint, eFormatHex, \
{ehframe_mm##i##_i386, dwarf_mm##i##_i386, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
lldb_mm##i##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_XMM(reg, i) \
{ \
#reg #i, nullptr, XMM_SIZE, \
LLVM_EXTENSION FPR_OFFSET( \
reg[i]), eEncodingVector, eFormatVectorOfUInt8, \
{ehframe_##reg##i##_i386, dwarf_##reg##i##_i386, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
// I believe the YMM registers use dwarf_xmm_%_i386 register numbers and then
// differentiate based on register size.
#define DEFINE_YMM(reg, i) \
{ \
#reg #i, nullptr, YMM_SIZE, \
LLVM_EXTENSION YMM_OFFSET(i), eEncodingVector, eFormatVectorOfUInt8, \
{LLDB_INVALID_REGNUM, dwarf_xmm##i##_i386, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
lldb_##reg##i##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_BNDR(reg, i) \
{ \
#reg #i, nullptr, BNDR_SIZE, \
LLVM_EXTENSION BNDR_OFFSET(i), eEncodingVector, eFormatVectorOfUInt64, \
{dwarf_##reg##i##_i386, dwarf_##reg##i##_i386, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, lldb_##reg##i##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_BNDC(name, i) \
{ \
#name, nullptr, BNDC_SIZE, \
LLVM_EXTENSION BNDC_OFFSET(i), eEncodingVector, \
eFormatVectorOfUInt8, \
{LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, lldb_##name##_i386 }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_DR(reg, i) \
{ \
#reg #i, nullptr, DR_SIZE, \
DR_OFFSET(i), eEncodingUint, eFormatHex, \
{LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM }, \
nullptr, nullptr, nullptr, 0 \
}
#define DEFINE_GPR_PSEUDO_16(reg16, reg32) \
{ \
#reg16, nullptr, 2, \
GPR_OFFSET(reg32), eEncodingUint, eFormatHex, \
{LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
lldb_##reg16##_i386 }, \
RegisterContextPOSIX_x86::g_contained_##reg32, \
RegisterContextPOSIX_x86::g_invalidate_##reg32, nullptr, 0 \
}
#define DEFINE_GPR_PSEUDO_8H(reg8, reg32) \
{ \
#reg8, nullptr, 1, \
GPR_OFFSET(reg32) + 1, eEncodingUint, eFormatHex, \
{LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
lldb_##reg8##_i386 }, \
RegisterContextPOSIX_x86::g_contained_##reg32, \
RegisterContextPOSIX_x86::g_invalidate_##reg32, nullptr, 0 \
}
#define DEFINE_GPR_PSEUDO_8L(reg8, reg32) \
{ \
#reg8, nullptr, 1, \
GPR_OFFSET(reg32), eEncodingUint, eFormatHex, \
{LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, \
lldb_##reg8##_i386 }, \
RegisterContextPOSIX_x86::g_contained_##reg32, \
RegisterContextPOSIX_x86::g_invalidate_##reg32, nullptr, 0 \
}
static RegisterInfo g_register_infos_i386[] = {
// General purpose registers.
DEFINE_GPR(eax, nullptr, ehframe_eax_i386, dwarf_eax_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ebx, nullptr, ehframe_ebx_i386, dwarf_ebx_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ecx, nullptr, ehframe_ecx_i386, dwarf_ecx_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(edx, nullptr, ehframe_edx_i386, dwarf_edx_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(edi, nullptr, ehframe_edi_i386, dwarf_edi_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(esi, nullptr, ehframe_esi_i386, dwarf_esi_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ebp, "fp", ehframe_ebp_i386, dwarf_ebp_i386,
LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM),
DEFINE_GPR(esp, "sp", ehframe_esp_i386, dwarf_esp_i386,
LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
DEFINE_GPR(eip, "pc", ehframe_eip_i386, dwarf_eip_i386,
LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
DEFINE_GPR(eflags, "flags", ehframe_eflags_i386, dwarf_eflags_i386,
LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
DEFINE_GPR(cs, nullptr, LLDB_INVALID_REGNUM, dwarf_cs_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(fs, nullptr, LLDB_INVALID_REGNUM, dwarf_fs_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(gs, nullptr, LLDB_INVALID_REGNUM, dwarf_gs_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ss, nullptr, LLDB_INVALID_REGNUM, dwarf_ss_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ds, nullptr, LLDB_INVALID_REGNUM, dwarf_ds_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(es, nullptr, LLDB_INVALID_REGNUM, dwarf_es_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR_PSEUDO_16(ax, eax), DEFINE_GPR_PSEUDO_16(bx, ebx),
DEFINE_GPR_PSEUDO_16(cx, ecx), DEFINE_GPR_PSEUDO_16(dx, edx),
DEFINE_GPR_PSEUDO_16(di, edi), DEFINE_GPR_PSEUDO_16(si, esi),
DEFINE_GPR_PSEUDO_16(bp, ebp), DEFINE_GPR_PSEUDO_16(sp, esp),
DEFINE_GPR_PSEUDO_8H(ah, eax), DEFINE_GPR_PSEUDO_8H(bh, ebx),
DEFINE_GPR_PSEUDO_8H(ch, ecx), DEFINE_GPR_PSEUDO_8H(dh, edx),
DEFINE_GPR_PSEUDO_8L(al, eax), DEFINE_GPR_PSEUDO_8L(bl, ebx),
DEFINE_GPR_PSEUDO_8L(cl, ecx), DEFINE_GPR_PSEUDO_8L(dl, edx),
// i387 Floating point registers.
DEFINE_FPR(fctrl, fctrl, LLDB_INVALID_REGNUM, dwarf_fctrl_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(fstat, fstat, LLDB_INVALID_REGNUM, dwarf_fstat_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(ftag, ftag, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(fop, fop, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(fiseg, ptr.i386_.fiseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(fioff, ptr.i386_.fioff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(foseg, ptr.i386_.foseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(fooff, ptr.i386_.fooff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(mxcsr, mxcsr, LLDB_INVALID_REGNUM, dwarf_mxcsr_i386,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_FPR(mxcsrmask, mxcsrmask, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
// FP registers.
DEFINE_FP_ST(st, 0), DEFINE_FP_ST(st, 1), DEFINE_FP_ST(st, 2),
DEFINE_FP_ST(st, 3), DEFINE_FP_ST(st, 4), DEFINE_FP_ST(st, 5),
DEFINE_FP_ST(st, 6), DEFINE_FP_ST(st, 7), DEFINE_FP_MM(mm, 0),
DEFINE_FP_MM(mm, 1), DEFINE_FP_MM(mm, 2), DEFINE_FP_MM(mm, 3),
DEFINE_FP_MM(mm, 4), DEFINE_FP_MM(mm, 5), DEFINE_FP_MM(mm, 6),
DEFINE_FP_MM(mm, 7),
// XMM registers
DEFINE_XMM(xmm, 0), DEFINE_XMM(xmm, 1), DEFINE_XMM(xmm, 2),
DEFINE_XMM(xmm, 3), DEFINE_XMM(xmm, 4), DEFINE_XMM(xmm, 5),
DEFINE_XMM(xmm, 6), DEFINE_XMM(xmm, 7),
// Copy of YMM registers assembled from xmm and ymmh
DEFINE_YMM(ymm, 0), DEFINE_YMM(ymm, 1), DEFINE_YMM(ymm, 2),
DEFINE_YMM(ymm, 3), DEFINE_YMM(ymm, 4), DEFINE_YMM(ymm, 5),
DEFINE_YMM(ymm, 6), DEFINE_YMM(ymm, 7),
// MPX registers
DEFINE_BNDR(bnd, 0),
DEFINE_BNDR(bnd, 1),
DEFINE_BNDR(bnd, 2),
DEFINE_BNDR(bnd, 3),
DEFINE_BNDC(bndcfgu, 0),
DEFINE_BNDC(bndstatus, 1),
// Debug registers for lldb internal use
DEFINE_DR(dr, 0), DEFINE_DR(dr, 1), DEFINE_DR(dr, 2), DEFINE_DR(dr, 3),
DEFINE_DR(dr, 4), DEFINE_DR(dr, 5), DEFINE_DR(dr, 6), DEFINE_DR(dr, 7)};
static_assert((sizeof(g_register_infos_i386) /
sizeof(g_register_infos_i386[0])) == k_num_registers_i386,
"g_register_infos_x86_64 has wrong number of register infos");
#undef GPR_OFFSET
#undef FPR_OFFSET
#undef YMM_OFFSET
#undef FPR_SIZE
#undef FP_SIZE
#undef XMM_SIZE
#undef YMM_SIZE
#undef DEFINE_GPR
#undef DEFINE_FPR
#undef DEFINE_FP
#undef DEFINE_XMM
#undef DEFINE_YMM
#undef DEFINE_BNDR
#undef DEFINE_BNDC
#undef DEFINE_DR
#undef DEFINE_GPR_PSEUDO_16
#undef DEFINE_GPR_PSEUDO_8H
#undef DEFINE_GPR_PSEUDO_8L
#endif // DECLARE_REGISTER_INFOS_I386_STRUCT