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llvm-project/lldb/source/Plugins/SymbolFile/NativePDB/DWARFLocationExpression.cpp

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//===-- DWARFLocationExpression.cpp -----------------------------*- 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 "DWARFLocationExpression.h"
#include "Plugins/Process/Utility/lldb-x86-register-enums.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/Section.h"
#include "lldb/Core/StreamBuffer.h"
#include "lldb/Expression/DWARFExpression.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
#include "llvm/DebugInfo/CodeView/TypeIndex.h"
#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
#include "llvm/Support/Endian.h"
#include "PdbUtil.h"
using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::npdb;
using namespace llvm::codeview;
using namespace llvm::pdb;
static const uint32_t g_code_view_to_lldb_registers_x86[] = {
LLDB_INVALID_REGNUM, // NONE
lldb_al_i386, // AL
lldb_cl_i386, // CL
lldb_dl_i386, // DL
lldb_bl_i386, // BL
lldb_ah_i386, // AH
lldb_ch_i386, // CH
lldb_dh_i386, // DH
lldb_bh_i386, // BH
lldb_ax_i386, // AX
lldb_cx_i386, // CX
lldb_dx_i386, // DX
lldb_bx_i386, // BX
lldb_sp_i386, // SP
lldb_bp_i386, // BP
lldb_si_i386, // SI
lldb_di_i386, // DI
lldb_eax_i386, // EAX
lldb_ecx_i386, // ECX
lldb_edx_i386, // EDX
lldb_ebx_i386, // EBX
lldb_esp_i386, // ESP
lldb_ebp_i386, // EBP
lldb_esi_i386, // ESI
lldb_edi_i386, // EDI
lldb_es_i386, // ES
lldb_cs_i386, // CS
lldb_ss_i386, // SS
lldb_ds_i386, // DS
lldb_fs_i386, // FS
lldb_gs_i386, // GS
LLDB_INVALID_REGNUM, // IP
LLDB_INVALID_REGNUM, // FLAGS
lldb_eip_i386, // EIP
lldb_eflags_i386, // EFLAGS
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // TEMP
LLDB_INVALID_REGNUM, // TEMPH
LLDB_INVALID_REGNUM, // QUOTE
LLDB_INVALID_REGNUM, // PCDR3
LLDB_INVALID_REGNUM, // PCDR4
LLDB_INVALID_REGNUM, // PCDR5
LLDB_INVALID_REGNUM, // PCDR6
LLDB_INVALID_REGNUM, // PCDR7
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // CR0
LLDB_INVALID_REGNUM, // CR1
LLDB_INVALID_REGNUM, // CR2
LLDB_INVALID_REGNUM, // CR3
LLDB_INVALID_REGNUM, // CR4
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
lldb_dr0_i386, // DR0
lldb_dr1_i386, // DR1
lldb_dr2_i386, // DR2
lldb_dr3_i386, // DR3
lldb_dr4_i386, // DR4
lldb_dr5_i386, // DR5
lldb_dr6_i386, // DR6
lldb_dr7_i386, // DR7
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // GDTR
LLDB_INVALID_REGNUM, // GDTL
LLDB_INVALID_REGNUM, // IDTR
LLDB_INVALID_REGNUM, // IDTL
LLDB_INVALID_REGNUM, // LDTR
LLDB_INVALID_REGNUM, // TR
LLDB_INVALID_REGNUM, // PSEUDO1
LLDB_INVALID_REGNUM, // PSEUDO2
LLDB_INVALID_REGNUM, // PSEUDO3
LLDB_INVALID_REGNUM, // PSEUDO4
LLDB_INVALID_REGNUM, // PSEUDO5
LLDB_INVALID_REGNUM, // PSEUDO6
LLDB_INVALID_REGNUM, // PSEUDO7
LLDB_INVALID_REGNUM, // PSEUDO8
LLDB_INVALID_REGNUM, // PSEUDO9
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
lldb_st0_i386, // ST0
lldb_st1_i386, // ST1
lldb_st2_i386, // ST2
lldb_st3_i386, // ST3
lldb_st4_i386, // ST4
lldb_st5_i386, // ST5
lldb_st6_i386, // ST6
lldb_st7_i386, // ST7
LLDB_INVALID_REGNUM, // CTRL
LLDB_INVALID_REGNUM, // STAT
LLDB_INVALID_REGNUM, // TAG
LLDB_INVALID_REGNUM, // FPIP
LLDB_INVALID_REGNUM, // FPCS
LLDB_INVALID_REGNUM, // FPDO
LLDB_INVALID_REGNUM, // FPDS
LLDB_INVALID_REGNUM, // ISEM
LLDB_INVALID_REGNUM, // FPEIP
LLDB_INVALID_REGNUM, // FPEDO
lldb_mm0_i386, // MM0
lldb_mm1_i386, // MM1
lldb_mm2_i386, // MM2
lldb_mm3_i386, // MM3
lldb_mm4_i386, // MM4
lldb_mm5_i386, // MM5
lldb_mm6_i386, // MM6
lldb_mm7_i386, // MM7
lldb_xmm0_i386, // XMM0
lldb_xmm1_i386, // XMM1
lldb_xmm2_i386, // XMM2
lldb_xmm3_i386, // XMM3
lldb_xmm4_i386, // XMM4
lldb_xmm5_i386, // XMM5
lldb_xmm6_i386, // XMM6
lldb_xmm7_i386 // XMM7
};
static const uint32_t g_code_view_to_lldb_registers_x86_64[] = {
LLDB_INVALID_REGNUM, // NONE
lldb_al_x86_64, // AL
lldb_cl_x86_64, // CL
lldb_dl_x86_64, // DL
lldb_bl_x86_64, // BL
lldb_ah_x86_64, // AH
lldb_ch_x86_64, // CH
lldb_dh_x86_64, // DH
lldb_bh_x86_64, // BH
lldb_ax_x86_64, // AX
lldb_cx_x86_64, // CX
lldb_dx_x86_64, // DX
lldb_bx_x86_64, // BX
lldb_sp_x86_64, // SP
lldb_bp_x86_64, // BP
lldb_si_x86_64, // SI
lldb_di_x86_64, // DI
lldb_eax_x86_64, // EAX
lldb_ecx_x86_64, // ECX
lldb_edx_x86_64, // EDX
lldb_ebx_x86_64, // EBX
lldb_esp_x86_64, // ESP
lldb_ebp_x86_64, // EBP
lldb_esi_x86_64, // ESI
lldb_edi_x86_64, // EDI
lldb_es_x86_64, // ES
lldb_cs_x86_64, // CS
lldb_ss_x86_64, // SS
lldb_ds_x86_64, // DS
lldb_fs_x86_64, // FS
lldb_gs_x86_64, // GS
LLDB_INVALID_REGNUM, // IP
LLDB_INVALID_REGNUM, // FLAGS
LLDB_INVALID_REGNUM, // EIP
LLDB_INVALID_REGNUM, // EFLAGS
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // TEMP
LLDB_INVALID_REGNUM, // TEMPH
LLDB_INVALID_REGNUM, // QUOTE
LLDB_INVALID_REGNUM, // PCDR3
LLDB_INVALID_REGNUM, // PCDR4
LLDB_INVALID_REGNUM, // PCDR5
LLDB_INVALID_REGNUM, // PCDR6
LLDB_INVALID_REGNUM, // PCDR7
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // CR0
LLDB_INVALID_REGNUM, // CR1
LLDB_INVALID_REGNUM, // CR2
LLDB_INVALID_REGNUM, // CR3
LLDB_INVALID_REGNUM, // CR4
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
lldb_dr0_x86_64, // DR0
lldb_dr1_x86_64, // DR1
lldb_dr2_x86_64, // DR2
lldb_dr3_x86_64, // DR3
lldb_dr4_x86_64, // DR4
lldb_dr5_x86_64, // DR5
lldb_dr6_x86_64, // DR6
lldb_dr7_x86_64, // DR7
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // GDTR
LLDB_INVALID_REGNUM, // GDTL
LLDB_INVALID_REGNUM, // IDTR
LLDB_INVALID_REGNUM, // IDTL
LLDB_INVALID_REGNUM, // LDTR
LLDB_INVALID_REGNUM, // TR
LLDB_INVALID_REGNUM, // PSEUDO1
LLDB_INVALID_REGNUM, // PSEUDO2
LLDB_INVALID_REGNUM, // PSEUDO3
LLDB_INVALID_REGNUM, // PSEUDO4
LLDB_INVALID_REGNUM, // PSEUDO5
LLDB_INVALID_REGNUM, // PSEUDO6
LLDB_INVALID_REGNUM, // PSEUDO7
LLDB_INVALID_REGNUM, // PSEUDO8
LLDB_INVALID_REGNUM, // PSEUDO9
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
lldb_st0_x86_64, // ST0
lldb_st1_x86_64, // ST1
lldb_st2_x86_64, // ST2
lldb_st3_x86_64, // ST3
lldb_st4_x86_64, // ST4
lldb_st5_x86_64, // ST5
lldb_st6_x86_64, // ST6
lldb_st7_x86_64, // ST7
LLDB_INVALID_REGNUM, // CTRL
LLDB_INVALID_REGNUM, // STAT
LLDB_INVALID_REGNUM, // TAG
LLDB_INVALID_REGNUM, // FPIP
LLDB_INVALID_REGNUM, // FPCS
LLDB_INVALID_REGNUM, // FPDO
LLDB_INVALID_REGNUM, // FPDS
LLDB_INVALID_REGNUM, // ISEM
LLDB_INVALID_REGNUM, // FPEIP
LLDB_INVALID_REGNUM, // FPEDO
lldb_mm0_x86_64, // MM0
lldb_mm1_x86_64, // MM1
lldb_mm2_x86_64, // MM2
lldb_mm3_x86_64, // MM3
lldb_mm4_x86_64, // MM4
lldb_mm5_x86_64, // MM5
lldb_mm6_x86_64, // MM6
lldb_mm7_x86_64, // MM7
lldb_xmm0_x86_64, // XMM0
lldb_xmm1_x86_64, // XMM1
lldb_xmm2_x86_64, // XMM2
lldb_xmm3_x86_64, // XMM3
lldb_xmm4_x86_64, // XMM4
lldb_xmm5_x86_64, // XMM5
lldb_xmm6_x86_64, // XMM6
lldb_xmm7_x86_64, // XMM7
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM,
lldb_mxcsr_x86_64, // MXCSR
LLDB_INVALID_REGNUM, // EDXEAX
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, // EMM0L
LLDB_INVALID_REGNUM, // EMM1L
LLDB_INVALID_REGNUM, // EMM2L
LLDB_INVALID_REGNUM, // EMM3L
LLDB_INVALID_REGNUM, // EMM4L
LLDB_INVALID_REGNUM, // EMM5L
LLDB_INVALID_REGNUM, // EMM6L
LLDB_INVALID_REGNUM, // EMM7L
LLDB_INVALID_REGNUM, // EMM0H
LLDB_INVALID_REGNUM, // EMM1H
LLDB_INVALID_REGNUM, // EMM2H
LLDB_INVALID_REGNUM, // EMM3H
LLDB_INVALID_REGNUM, // EMM4H
LLDB_INVALID_REGNUM, // EMM5H
LLDB_INVALID_REGNUM, // EMM6H
LLDB_INVALID_REGNUM, // EMM7H
LLDB_INVALID_REGNUM, // MM00
LLDB_INVALID_REGNUM, // MM01
LLDB_INVALID_REGNUM, // MM10
LLDB_INVALID_REGNUM, // MM11
LLDB_INVALID_REGNUM, // MM20
LLDB_INVALID_REGNUM, // MM21
LLDB_INVALID_REGNUM, // MM30
LLDB_INVALID_REGNUM, // MM31
LLDB_INVALID_REGNUM, // MM40
LLDB_INVALID_REGNUM, // MM41
LLDB_INVALID_REGNUM, // MM50
LLDB_INVALID_REGNUM, // MM51
LLDB_INVALID_REGNUM, // MM60
LLDB_INVALID_REGNUM, // MM61
LLDB_INVALID_REGNUM, // MM70
LLDB_INVALID_REGNUM, // MM71
lldb_xmm8_x86_64, // XMM8
lldb_xmm9_x86_64, // XMM9
lldb_xmm10_x86_64, // XMM10
lldb_xmm11_x86_64, // XMM11
lldb_xmm12_x86_64, // XMM12
lldb_xmm13_x86_64, // XMM13
lldb_xmm14_x86_64, // XMM14
lldb_xmm15_x86_64, // XMM15
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM,
lldb_sil_x86_64, // SIL
lldb_dil_x86_64, // DIL
lldb_bpl_x86_64, // BPL
lldb_spl_x86_64, // SPL
lldb_rax_x86_64, // RAX
lldb_rbx_x86_64, // RBX
lldb_rcx_x86_64, // RCX
lldb_rdx_x86_64, // RDX
lldb_rsi_x86_64, // RSI
lldb_rdi_x86_64, // RDI
lldb_rbp_x86_64, // RBP
lldb_rsp_x86_64, // RSP
lldb_r8_x86_64, // R8
lldb_r9_x86_64, // R9
lldb_r10_x86_64, // R10
lldb_r11_x86_64, // R11
lldb_r12_x86_64, // R12
lldb_r13_x86_64, // R13
lldb_r14_x86_64, // R14
lldb_r15_x86_64, // R15
lldb_r8l_x86_64, // R8B
lldb_r9l_x86_64, // R9B
lldb_r10l_x86_64, // R10B
lldb_r11l_x86_64, // R11B
lldb_r12l_x86_64, // R12B
lldb_r13l_x86_64, // R13B
lldb_r14l_x86_64, // R14B
lldb_r15l_x86_64, // R15B
lldb_r8w_x86_64, // R8W
lldb_r9w_x86_64, // R9W
lldb_r10w_x86_64, // R10W
lldb_r11w_x86_64, // R11W
lldb_r12w_x86_64, // R12W
lldb_r13w_x86_64, // R13W
lldb_r14w_x86_64, // R14W
lldb_r15w_x86_64, // R15W
lldb_r8d_x86_64, // R8D
lldb_r9d_x86_64, // R9D
lldb_r10d_x86_64, // R10D
lldb_r11d_x86_64, // R11D
lldb_r12d_x86_64, // R12D
lldb_r13d_x86_64, // R13D
lldb_r14d_x86_64, // R14D
lldb_r15d_x86_64, // R15D
lldb_ymm0_x86_64, // AMD64_YMM0
lldb_ymm1_x86_64, // AMD64_YMM1
lldb_ymm2_x86_64, // AMD64_YMM2
lldb_ymm3_x86_64, // AMD64_YMM3
lldb_ymm4_x86_64, // AMD64_YMM4
lldb_ymm5_x86_64, // AMD64_YMM5
lldb_ymm6_x86_64, // AMD64_YMM6
lldb_ymm7_x86_64, // AMD64_YMM7
lldb_ymm8_x86_64, // AMD64_YMM8
lldb_ymm9_x86_64, // AMD64_YMM9
lldb_ymm10_x86_64, // AMD64_YMM10
lldb_ymm11_x86_64, // AMD64_YMM11
lldb_ymm12_x86_64, // AMD64_YMM12
lldb_ymm13_x86_64, // AMD64_YMM13
lldb_ymm14_x86_64, // AMD64_YMM14
lldb_ymm15_x86_64, // AMD64_YMM15
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
lldb_bnd0_x86_64, // BND0
lldb_bnd1_x86_64, // BND1
lldb_bnd2_x86_64 // BND2
};
uint32_t GetLLDBRegisterNumber(llvm::Triple::ArchType arch_type,
llvm::codeview::RegisterId register_id) {
switch (arch_type) {
case llvm::Triple::x86:
if (static_cast<uint16_t>(register_id) <
sizeof(g_code_view_to_lldb_registers_x86) /
sizeof(g_code_view_to_lldb_registers_x86[0]))
return g_code_view_to_lldb_registers_x86[static_cast<uint16_t>(
register_id)];
switch (register_id) {
case llvm::codeview::RegisterId::MXCSR:
return lldb_mxcsr_i386;
case llvm::codeview::RegisterId::BND0:
return lldb_bnd0_i386;
case llvm::codeview::RegisterId::BND1:
return lldb_bnd1_i386;
case llvm::codeview::RegisterId::BND2:
return lldb_bnd2_i386;
default:
return LLDB_INVALID_REGNUM;
}
case llvm::Triple::x86_64:
if (static_cast<uint16_t>(register_id) <
sizeof(g_code_view_to_lldb_registers_x86_64) /
sizeof(g_code_view_to_lldb_registers_x86_64[0]))
return g_code_view_to_lldb_registers_x86_64[static_cast<uint16_t>(
register_id)];
return LLDB_INVALID_REGNUM;
default:
return LLDB_INVALID_REGNUM;
}
}
uint32_t GetGenericRegisterNumber(llvm::codeview::RegisterId register_id) {
if (register_id == llvm::codeview::RegisterId::VFRAME)
return LLDB_REGNUM_GENERIC_FP;
return LLDB_INVALID_REGNUM;
}
static uint32_t GetRegisterNumber(llvm::Triple::ArchType arch_type,
llvm::codeview::RegisterId register_id,
RegisterKind &register_kind) {
register_kind = eRegisterKindLLDB;
uint32_t reg_num = GetLLDBRegisterNumber(arch_type, register_id);
if (reg_num != LLDB_INVALID_REGNUM)
return reg_num;
register_kind = eRegisterKindGeneric;
return GetGenericRegisterNumber(register_id);
}
static bool IsSimpleTypeSignedInteger(SimpleTypeKind kind) {
switch (kind) {
case SimpleTypeKind::Int128:
case SimpleTypeKind::Int64:
case SimpleTypeKind::Int64Quad:
case SimpleTypeKind::Int32:
case SimpleTypeKind::Int32Long:
case SimpleTypeKind::Int16:
case SimpleTypeKind::Int16Short:
case SimpleTypeKind::Float128:
case SimpleTypeKind::Float80:
case SimpleTypeKind::Float64:
case SimpleTypeKind::Float32:
case SimpleTypeKind::Float16:
case SimpleTypeKind::NarrowCharacter:
case SimpleTypeKind::SignedCharacter:
case SimpleTypeKind::SByte:
return true;
default:
return false;
}
}
static std::pair<size_t, bool> GetIntegralTypeInfo(TypeIndex ti,
TpiStream &tpi) {
if (ti.isSimple()) {
SimpleTypeKind stk = ti.getSimpleKind();
return {GetTypeSizeForSimpleKind(stk), IsSimpleTypeSignedInteger(stk)};
}
CVType cvt = tpi.getType(ti);
switch (cvt.kind()) {
case LF_MODIFIER: {
ModifierRecord mfr;
llvm::cantFail(TypeDeserializer::deserializeAs<ModifierRecord>(cvt, mfr));
return GetIntegralTypeInfo(mfr.ModifiedType, tpi);
}
case LF_POINTER: {
PointerRecord pr;
llvm::cantFail(TypeDeserializer::deserializeAs<PointerRecord>(cvt, pr));
return GetIntegralTypeInfo(pr.ReferentType, tpi);
}
case LF_ENUM: {
EnumRecord er;
llvm::cantFail(TypeDeserializer::deserializeAs<EnumRecord>(cvt, er));
return GetIntegralTypeInfo(er.UnderlyingType, tpi);
}
default:
assert(false && "Type is not integral!");
return {0, false};
}
}
template <typename StreamWriter>
static DWARFExpression MakeLocationExpressionInternal(lldb::ModuleSP module,
StreamWriter &&writer) {
const ArchSpec &architecture = module->GetArchitecture();
ByteOrder byte_order = architecture.GetByteOrder();
uint32_t address_size = architecture.GetAddressByteSize();
uint32_t byte_size = architecture.GetDataByteSize();
if (byte_order == eByteOrderInvalid || address_size == 0)
return DWARFExpression(nullptr);
RegisterKind register_kind = eRegisterKindDWARF;
StreamBuffer<32> stream(Stream::eBinary, address_size, byte_order);
if (!writer(stream, register_kind))
return DWARFExpression(nullptr);
DataBufferSP buffer =
std::make_shared<DataBufferHeap>(stream.GetData(), stream.GetSize());
DataExtractor extractor(buffer, byte_order, address_size, byte_size);
DWARFExpression result(module, extractor, nullptr, 0, buffer->GetByteSize());
result.SetRegisterKind(register_kind);
return result;
}
static DWARFExpression MakeRegisterBasedLocationExpressionInternal(
llvm::codeview::RegisterId reg, llvm::Optional<int32_t> relative_offset,
lldb::ModuleSP module) {
return MakeLocationExpressionInternal(
module, [&](Stream &stream, RegisterKind &register_kind) -> bool {
uint32_t reg_num = GetRegisterNumber(
module->GetArchitecture().GetMachine(), reg, register_kind);
if (reg_num == LLDB_INVALID_REGNUM)
return false;
if (reg_num > 31) {
llvm::dwarf::LocationAtom base = relative_offset
? llvm::dwarf::DW_OP_bregx
: llvm::dwarf::DW_OP_regx;
stream.PutHex8(base);
stream.PutULEB128(reg_num);
} else {
llvm::dwarf::LocationAtom base = relative_offset
? llvm::dwarf::DW_OP_breg0
: llvm::dwarf::DW_OP_reg0;
stream.PutHex8(base + reg_num);
}
if (relative_offset)
stream.PutSLEB128(*relative_offset);
return true;
});
}
DWARFExpression lldb_private::npdb::MakeEnregisteredLocationExpression(
llvm::codeview::RegisterId reg, lldb::ModuleSP module) {
return MakeRegisterBasedLocationExpressionInternal(reg, llvm::None, module);
}
DWARFExpression lldb_private::npdb::MakeRegRelLocationExpression(
llvm::codeview::RegisterId reg, int32_t offset, lldb::ModuleSP module) {
return MakeRegisterBasedLocationExpressionInternal(reg, offset, module);
}
DWARFExpression lldb_private::npdb::MakeGlobalLocationExpression(
uint16_t section, uint32_t offset, ModuleSP module) {
assert(section > 0);
assert(module);
return MakeLocationExpressionInternal(
module, [&](Stream &stream, RegisterKind &register_kind) -> bool {
stream.PutHex8(llvm::dwarf::DW_OP_addr);
SectionList *section_list = module->GetSectionList();
assert(section_list);
// Section indices in PDB are 1-based, but in DWARF they are 0-based, so
// we need to subtract 1.
uint32_t section_idx = section - 1;
if (section_idx >= section_list->GetSize())
return false;
auto section_ptr = section_list->GetSectionAtIndex(section_idx);
if (!section_ptr)
return false;
stream.PutMaxHex64(section_ptr->GetFileAddress() + offset,
stream.GetAddressByteSize(), stream.GetByteOrder());
return true;
});
}
DWARFExpression lldb_private::npdb::MakeConstantLocationExpression(
TypeIndex underlying_ti, TpiStream &tpi, const llvm::APSInt &constant,
ModuleSP module) {
const ArchSpec &architecture = module->GetArchitecture();
uint32_t address_size = architecture.GetAddressByteSize();
size_t size = 0;
bool is_signed = false;
std::tie(size, is_signed) = GetIntegralTypeInfo(underlying_ti, tpi);
union {
llvm::support::little64_t I;
llvm::support::ulittle64_t U;
} Value;
std::shared_ptr<DataBufferHeap> buffer = std::make_shared<DataBufferHeap>();
buffer->SetByteSize(size);
llvm::ArrayRef<uint8_t> bytes;
if (is_signed) {
Value.I = constant.getSExtValue();
} else {
Value.U = constant.getZExtValue();
}
bytes = llvm::makeArrayRef(reinterpret_cast<const uint8_t *>(&Value), 8)
.take_front(size);
buffer->CopyData(bytes.data(), size);
DataExtractor extractor(buffer, lldb::eByteOrderLittle, address_size);
DWARFExpression result(nullptr, extractor, nullptr, 0, size);
return result;
}
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