mirror of
https://github.com/Ed94/raddebugger.git
synced 2026-06-22 19:54:59 -07:00
Nikita Smith
389 lines
9.3 KiB
C
389 lines
9.3 KiB
C
// Copyright (c) 2024 Epic Games Tools
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// Licensed under the MIT license (https://opensource.org/license/mit/)
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internal U64
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dw_reg_size_from_code_x86(DW_Reg reg_code)
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{
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switch (reg_code) {
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#define X(reg_name_dw, reg_code_dw, reg_name_rdi, reg_pos, reg_size) case DW_RegX86_##reg_name_dw: return reg_size;
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DW_Regs_X86_XList(X)
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#undef X
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}
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return 0;
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}
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internal U64
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dw_reg_pos_from_code_x86(DW_Reg reg_code)
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{
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switch (reg_code) {
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#define X(reg_name_dw, reg_code_dw, reg_name_rdi, reg_pos, reg_size) case DW_RegX86_##reg_name_dw: return reg_pos;
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DW_Regs_X86_XList(X)
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#undef X
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}
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return max_U64;
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}
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internal U64
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dw_reg_size_from_code_x64(DW_Reg reg_code)
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{
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switch (reg_code) {
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#define X(reg_name_dw, reg_code_dw, reg_name_rdi, reg_pos, reg_size) case DW_RegX64_##reg_name_dw: return reg_size;
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DW_Regs_X64_XList(X)
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#undef X
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}
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return 0;
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}
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internal U64
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dw_reg_pos_from_code_x64(DW_Reg reg_code)
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{
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switch (reg_code) {
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#define X(reg_name_dw, reg_code_dw, reg_name_rdi, reg_pos, reg_size) case DW_RegX64_##reg_name_dw: return reg_pos;
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DW_Regs_X64_XList(X)
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#undef X
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}
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return max_U64;
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}
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internal U64
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dw_reg_size_from_code(Arch arch, DW_Reg reg_code)
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{
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switch (arch) {
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case Arch_Null: break;
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case Arch_x86: return dw_reg_size_from_code_x86(reg_code);
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case Arch_x64: return dw_reg_size_from_code_x64(reg_code);
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default: NotImplemented; break;
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}
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return 0;
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}
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internal U64
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dw_reg_pos_from_code(Arch arch, DW_Reg reg_code)
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{
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switch (arch) {
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case Arch_Null: break;
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case Arch_x86: return dw_reg_pos_from_code_x86(reg_code);
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case Arch_x64: return dw_reg_pos_from_code_x64(reg_code);
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default: NotImplemented; break;
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}
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return max_U64;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_v2(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_V2_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_v3(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_V3_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_v4(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_V4_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_v5(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_V5_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_gnu(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_GNU_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_llvm(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_LLVM_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_apple(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_APPLE_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind_mips(DW_AttribKind k)
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{
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switch (k) {
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#define X(_N,_C) case DW_Attrib_##_N: return _C;
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DW_AttribKind_ClassFlags_MIPS_XList(X)
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#undef X
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}
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return DW_AttribClass_Null;
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}
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internal DW_AttribClass
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dw_attrib_class_from_attrib_kind(DW_Version ver, DW_Ext ext, DW_AttribKind k)
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{
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DW_AttribClass result = DW_AttribClass_Null;
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while (ext) {
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U64 z = 64-clz64(ext);
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if (z == 0) {
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break;
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}
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U64 flag = 1 << (z-1);
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ext &= ~flag;
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switch (flag) {
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case DW_Ext_Null: break;
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case DW_Ext_GNU: result = dw_attrib_class_from_attrib_kind_gnu(k); break;
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case DW_Ext_LLVM: result = dw_attrib_class_from_attrib_kind_llvm(k); break;
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case DW_Ext_APPLE: result = dw_attrib_class_from_attrib_kind_apple(k); break;
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case DW_Ext_MIPS: result = dw_attrib_class_from_attrib_kind_mips(k); break;
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default: InvalidPath; break;
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}
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if (result != DW_AttribClass_Null) {
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break;
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}
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}
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if (result == DW_AttribClass_Null) {
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switch (ver) {
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case DW_Version_Null: break;
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case DW_Version_1: AssertAlways(!"DWARF V1 is not supported"); break;
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case DW_Version_2: result = dw_attrib_class_from_attrib_kind_v2(k); break;
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case DW_Version_3: result = dw_attrib_class_from_attrib_kind_v3(k); break;
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case DW_Version_4: result = dw_attrib_class_from_attrib_kind_v4(k); break;
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case DW_Version_5: result = dw_attrib_class_from_attrib_kind_v5(k); break;
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default: InvalidPath; break;
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}
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}
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return result;
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}
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internal DW_AttribClass
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dw_attrib_class_from_form_kind(DW_Version ver, DW_FormKind k)
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{
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#define X(_N,_C) case DW_Form_##_N: return _C;
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switch (k) {
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DW_Form_AttribClass_GNU_XList(X)
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}
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switch (ver) {
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case DW_Version_5: {
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switch (k) {
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DW_Form_AttribClass_V5_XList(X)
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}
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} break;
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case DW_Version_4: {
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switch (k) {
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DW_Form_AttribClass_V4_XList(X)
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}
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} break;
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case DW_Version_3: {
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switch (k) {
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DW_Form_AttribClass_V2_XList(X)
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}
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} break;
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case DW_Version_2: {
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switch (k) {
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DW_Form_AttribClass_V2_XList(X)
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}
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} break;
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case DW_Version_1: {
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} break;
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case DW_Version_Null: break;
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}
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#undef X
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return DW_AttribClass_Null;
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}
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internal B32
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dw_are_attrib_class_and_form_kind_compatible(DW_Version ver, DW_AttribClass attrib_class, DW_FormKind form_kind)
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{
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DW_AttribClass compat_flags = dw_attrib_class_from_form_kind(ver, form_kind);
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B32 are_compat = (attrib_class & compat_flags) != 0;
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return are_compat;
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}
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internal String8
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dw_name_string_from_section_kind(DW_SectionKind k)
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{
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switch (k) {
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#define X(_N,_L,_M,_D) case DW_Section_##_N: return str8_lit(_L);
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DW_SectionKind_XList(X)
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#undef X
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}
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return str8_zero();
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}
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internal String8
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dw_mach_name_string_from_section_kind(DW_SectionKind k)
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{
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switch (k) {
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#define X(_N,_L,_M,_D) case DW_Section_##_N: return str8_lit(_M);
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DW_SectionKind_XList(X)
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#undef X
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}
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return str8_zero();
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}
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internal String8
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dw_dwo_name_string_from_section_kind(DW_SectionKind k)
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{
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switch (k) {
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#define X(_N,_L,_M,_D) case DW_Section_##_N: return str8_lit(_D);
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DW_SectionKind_XList(X)
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#undef X
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}
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return str8_zero();
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}
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internal U64
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dw_size_from_format(DW_Format format)
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{
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U64 result = 0;
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switch (format) {
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case DW_Format_Null: break;
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case DW_Format_32Bit: result = 4; break;
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case DW_Format_64Bit: result = 8; break;
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default: InvalidPath; break;
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}
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return result;
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}
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internal DW_AttribClass
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dw_pick_attrib_value_class(DW_Version ver, DW_Ext ext, B32 relaxed, DW_AttribKind attrib_kind, DW_FormKind form_kind)
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{
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// NOTE(rjf): DWARF's spec specifies two mappings:
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// (DW_AttribKind) => List(DW_AttribClass)
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// (DW_FormKind) => List(DW_AttribClass)
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//
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// This function's purpose is to find the overlapping class between an
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// DW_AttribKind and DW_FormKind.
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DW_AttribClass attrib_class = dw_attrib_class_from_attrib_kind(ver, ext, attrib_kind);
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DW_AttribClass form_class = dw_attrib_class_from_form_kind(ver, form_kind);
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if(relaxed)
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{
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if(attrib_class == DW_AttribClass_Null || form_class == DW_AttribClass_Null)
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{
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attrib_class = dw_attrib_class_from_attrib_kind(DW_Version_Last, ext, attrib_kind);
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form_class = dw_attrib_class_from_form_kind(DW_Version_Last, form_kind);
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}
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}
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DW_AttribClass result = DW_AttribClass_Null;
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if(attrib_class != DW_AttribClass_Null && form_class != DW_AttribClass_Null)
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{
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result = DW_AttribClass_Undefined;
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for(U32 i = 0; i < 32; ++i)
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{
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U32 n = 1u << i;
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if((attrib_class & n) != 0 && (form_class & n) != 0)
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{
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result = ((DW_AttribClass) n);
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break;
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}
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}
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}
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return result;
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}
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internal U64
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dw_pick_default_lower_bound(DW_Language lang)
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{
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U64 lower_bound = max_U64;
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switch (lang) {
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case DW_Language_Null: break;
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case DW_Language_C89:
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case DW_Language_C:
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case DW_Language_CPlusPlus:
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case DW_Language_C99:
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case DW_Language_CPlusPlus03:
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case DW_Language_CPlusPlus11:
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case DW_Language_C11:
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case DW_Language_CPlusPlus14:
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case DW_Language_Java:
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case DW_Language_ObjC:
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case DW_Language_ObjCPlusPlus:
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case DW_Language_UPC:
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case DW_Language_D:
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case DW_Language_Python:
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case DW_Language_OpenCL:
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case DW_Language_Go:
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case DW_Language_Haskell:
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case DW_Language_OCaml:
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case DW_Language_Rust:
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case DW_Language_Swift:
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case DW_Language_Dylan:
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case DW_Language_RenderScript:
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case DW_Language_BLISS:
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lower_bound = 0;
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break;
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case DW_Language_Ada83:
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case DW_Language_Cobol74:
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case DW_Language_Cobol85:
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case DW_Language_Fortran77:
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case DW_Language_Fortran90:
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case DW_Language_Pascal83:
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case DW_Language_Modula2:
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case DW_Language_Ada95:
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case DW_Language_Fortran95:
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case DW_Language_PLI:
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case DW_Language_Modula3:
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case DW_Language_Julia:
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case DW_Language_Fortran03:
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case DW_Language_Fortran08:
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lower_bound = 1;
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default:
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NotImplemented;
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break;
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}
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return lower_bound;
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}
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