// Copyright (c) Epic Games Tools // Licensed under the MIT license (https://opensource.org/license/mit/) internal String8 dw_string_from_reg_off(Arena *arena, Arch arch, U64 reg_idx, S64 reg_off) { Temp scratch = scratch_begin(&arena, 1); String8 reg_str = dw_string_from_register(scratch.arena, arch, reg_idx); String8 result = push_str8f(arena, "%S%+lld", reg_str, reg_off); scratch_end(scratch); return result; } internal String8List dw_string_list_from_expression(Arena *arena, String8 raw_data, U64 cu_base, U64 address_size, Arch arch, DW_Version ver, DW_Ext ext, DW_Format format) { Temp scratch = scratch_begin(&arena, 1); String8List result = {0}; for (U64 cursor = 0; cursor < raw_data.size; ) { U8 op = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &op); String8 op_value = str8_zero(); U64 size_param = 0; B32 is_signed = 0; switch (op) { case DW_ExprOp_Lit0: case DW_ExprOp_Lit1: case DW_ExprOp_Lit2: case DW_ExprOp_Lit3: case DW_ExprOp_Lit4: case DW_ExprOp_Lit5: case DW_ExprOp_Lit6: case DW_ExprOp_Lit7: case DW_ExprOp_Lit8: case DW_ExprOp_Lit9: case DW_ExprOp_Lit10: case DW_ExprOp_Lit11: case DW_ExprOp_Lit12: case DW_ExprOp_Lit13: case DW_ExprOp_Lit14: case DW_ExprOp_Lit15: case DW_ExprOp_Lit16: case DW_ExprOp_Lit17: case DW_ExprOp_Lit18: case DW_ExprOp_Lit19: case DW_ExprOp_Lit20: case DW_ExprOp_Lit21: case DW_ExprOp_Lit22: case DW_ExprOp_Lit23: case DW_ExprOp_Lit24: case DW_ExprOp_Lit25: case DW_ExprOp_Lit26: case DW_ExprOp_Lit27: case DW_ExprOp_Lit28: case DW_ExprOp_Lit29: case DW_ExprOp_Lit30: case DW_ExprOp_Lit31: { U64 x = op - DW_ExprOp_Lit0; op_value = push_str8f(scratch.arena, "%llu", x); } break; case DW_ExprOp_Const1U:size_param = 1; goto const_n; case DW_ExprOp_Const2U:size_param = 2; goto const_n; case DW_ExprOp_Const4U:size_param = 4; goto const_n; case DW_ExprOp_Const8U:size_param = 8; goto const_n; case DW_ExprOp_Const1S:size_param = 1; is_signed = 1; goto const_n; case DW_ExprOp_Const2S:size_param = 2; is_signed = 1; goto const_n; case DW_ExprOp_Const4S:size_param = 4; is_signed = 1; goto const_n; case DW_ExprOp_Const8S:size_param = 8; is_signed = 1; goto const_n; const_n: { if (is_signed) { S64 x = 0; cursor += str8_deserial_read(raw_data, cursor, &x, size_param, 1); x = extend_sign64(x, size_param); op_value = push_str8f(scratch.arena, "%lld", x); } else { U64 x = 0; cursor += str8_deserial_read(raw_data, cursor, &x, size_param, 1); op_value = push_str8f(scratch.arena, "%llu", x); } } break; case DW_ExprOp_Addr: { U64 addr = 0; cursor += str8_deserial_read(raw_data, cursor, &addr, address_size, 1); op_value = push_str8f(scratch.arena, "%#llx", addr); } break; case DW_ExprOp_ConstU: { U64 x = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &x); op_value = push_str8f(scratch.arena, "%llu", x); } break; case DW_ExprOp_ConstS: { S64 x = 0; cursor += str8_deserial_read_sleb128(raw_data, cursor, &x); op_value = push_str8f(scratch.arena, "%lld", x); } break; case DW_ExprOp_Reg0: case DW_ExprOp_Reg1: case DW_ExprOp_Reg2: case DW_ExprOp_Reg3: case DW_ExprOp_Reg4: case DW_ExprOp_Reg5: case DW_ExprOp_Reg6: case DW_ExprOp_Reg7: case DW_ExprOp_Reg8: case DW_ExprOp_Reg9: case DW_ExprOp_Reg10: case DW_ExprOp_Reg11: case DW_ExprOp_Reg12: case DW_ExprOp_Reg13: case DW_ExprOp_Reg14: case DW_ExprOp_Reg15: case DW_ExprOp_Reg16: case DW_ExprOp_Reg17: case DW_ExprOp_Reg18: case DW_ExprOp_Reg19: case DW_ExprOp_Reg20: case DW_ExprOp_Reg21: case DW_ExprOp_Reg22: case DW_ExprOp_Reg23: case DW_ExprOp_Reg24: case DW_ExprOp_Reg25: case DW_ExprOp_Reg26: case DW_ExprOp_Reg27: case DW_ExprOp_Reg28: case DW_ExprOp_Reg29: case DW_ExprOp_Reg30: case DW_ExprOp_Reg31: { U64 reg_idx = op - DW_ExprOp_Reg0; op_value = dw_string_from_reg_off(scratch.arena, arch, reg_idx, 0); } break; case DW_ExprOp_RegX: { U64 reg_idx = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); op_value = dw_string_from_reg_off(scratch.arena, arch, reg_idx, 0); } break; case DW_ExprOp_ImplicitValue: { U64 value_size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &value_size); Rng1U64 value_range = rng_1u64(cursor, cursor + value_size); String8 value_data = str8_substr(raw_data, value_range); cursor += value_size; String8List value_strings = numeric_str8_list_from_data(scratch.arena, 16, value_data, 1); op_value = str8_list_join(scratch.arena, &value_strings, &(StringJoin){.pre = str8_lit("{ "), .sep = str8_lit(", "), .post = str8_lit(" }")}); } break; case DW_ExprOp_Piece: { U64 size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &size); op_value = push_str8f(scratch.arena, "%u", size); } break; case DW_ExprOp_BitPiece: { U64 bit_size = 0, bit_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &bit_size); cursor += str8_deserial_read_uleb128(raw_data, cursor, &bit_off); op_value = push_str8f(scratch.arena, "bit size %llu, bit offset %llu", bit_size, bit_off); } break; case DW_ExprOp_Pick: { U8 stack_idx = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &stack_idx); op_value = push_str8f(scratch.arena, "stack index %u", stack_idx); } break; case DW_ExprOp_PlusUConst: { U64 addend = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &addend); op_value = push_str8f(arena, "addend %llu", addend); } break; case DW_ExprOp_Skip: { S16 x = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &x); op_value = push_str8f(scratch.arena, "%+d bytes", x); } break; case DW_ExprOp_Bra: { S16 x = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &x); op_value = push_str8f(scratch.arena, "%+d", x); } break; case DW_ExprOp_BReg0: case DW_ExprOp_BReg1: case DW_ExprOp_BReg2: case DW_ExprOp_BReg3: case DW_ExprOp_BReg4: case DW_ExprOp_BReg5: case DW_ExprOp_BReg6: case DW_ExprOp_BReg7: case DW_ExprOp_BReg8: case DW_ExprOp_BReg9: case DW_ExprOp_BReg10: case DW_ExprOp_BReg11: case DW_ExprOp_BReg12: case DW_ExprOp_BReg13: case DW_ExprOp_BReg14: case DW_ExprOp_BReg15: case DW_ExprOp_BReg16: case DW_ExprOp_BReg17: case DW_ExprOp_BReg18: case DW_ExprOp_BReg19: case DW_ExprOp_BReg20: case DW_ExprOp_BReg21: case DW_ExprOp_BReg22: case DW_ExprOp_BReg23: case DW_ExprOp_BReg24: case DW_ExprOp_BReg25: case DW_ExprOp_BReg26: case DW_ExprOp_BReg27: case DW_ExprOp_BReg28: case DW_ExprOp_BReg29: case DW_ExprOp_BReg30: case DW_ExprOp_BReg31: { U64 reg_idx = op - DW_ExprOp_BReg0; S64 reg_off = 0; cursor += str8_deserial_read_sleb128(raw_data, cursor, ®_off); op_value = dw_string_from_reg_off(scratch.arena, arch, reg_idx, reg_off); } break; case DW_ExprOp_FBReg: { S64 reg_off = 0; cursor += str8_deserial_read_sleb128(raw_data, cursor, ®_off); op_value = push_str8f(scratch.arena, "offset %lld", reg_off); } break; case DW_ExprOp_BRegX: { U64 reg_idx = 0; S64 reg_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_sleb128(raw_data, cursor, ®_off); op_value = dw_string_from_reg_off(scratch.arena, arch, reg_idx, reg_off); } break; case DW_ExprOp_XDerefSize: case DW_ExprOp_DerefSize: { U8 x = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &x); op_value = push_str8f(scratch.arena, "%u", x); } break; case DW_ExprOp_Call2: { U16 x = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &x); op_value = push_str8f(scratch.arena, "%u", x); } break; case DW_ExprOp_Call4: { U32 x = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &x); op_value = push_str8f(arena, "%u", x); } break; case DW_ExprOp_CallRef: { U64 x = 0; cursor += str8_deserial_read_dwarf_uint(raw_data, cursor, format, &x); op_value = push_str8f(scratch.arena, "%llu", x); } break; case DW_ExprOp_ImplicitPointer: case DW_ExprOp_GNU_ImplicitPointer: { U64 info_off = 0; cursor += str8_deserial_read_dwarf_uint(raw_data, cursor, format, &info_off); S64 ptr = 0; cursor += str8_deserial_read_sleb128(raw_data, cursor, &ptr); op_value = push_str8f(scratch.arena, ".debug_info+%#llx, ptr %llx", info_off, ptr); } break; case DW_ExprOp_Convert: case DW_ExprOp_GNU_Convert: { U64 type_cu_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &type_cu_off); op_value = push_str8f(scratch.arena, "TypeCuOff %#llx", cu_base + type_cu_off); } break; case DW_ExprOp_GNU_ParameterRef: { // TODO: always 4 bytes? U32 cu_off = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &cu_off); op_value = push_str8f(scratch.arena, "CuOff %#x", cu_base + cu_off); } break; case DW_ExprOp_DerefType: case DW_ExprOp_GNU_DerefType: { U8 deref_size = 0; U64 type_cu_off = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &deref_size); cursor += str8_deserial_read_uleb128(raw_data, cursor, &type_cu_off); op_value = push_str8f(scratch.arena, "%#x, TypeCuOff %#llx", deref_size, cu_base + type_cu_off); } break; case DW_ExprOp_ConstType: case DW_ExprOp_GNU_ConstType: { U64 type_cu_off = 0; U8 const_value_size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &type_cu_off); cursor += str8_deserial_read_struct(raw_data, cursor, &const_value_size); Rng1U64 const_value_range = rng_1u64(cursor, cursor + const_value_size); String8 const_value_data = str8_substr(raw_data, const_value_range); String8List const_value_strings = numeric_str8_list_from_data(scratch.arena, 16, const_value_data, 1); String8 const_value_str = str8_list_join(scratch.arena, &const_value_strings, &(StringJoin){.sep = str8_lit(", ")}); op_value = push_str8f(scratch.arena, "TypeCuOff %#llx, Const Value { %S }", cu_base + type_cu_off, const_value_str); cursor += const_value_size; } break; case DW_ExprOp_RegvalType: case DW_ExprOp_GNU_RegvalType: { U64 reg_idx = 0, type_cu_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_uleb128(raw_data, cursor, &type_cu_off); op_value = push_str8f(scratch.arena, "%S, TypeCuOff %#llx", dw_string_from_register(scratch.arena, arch, reg_idx), cu_base + type_cu_off); } break; case DW_ExprOp_EntryValue: case DW_ExprOp_GNU_EntryValue: { U64 block_size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &block_size); Rng1U64 block_range = rng_1u64(cursor, cursor + block_size); String8 block_data = str8_substr(raw_data, block_range); String8List block_expr = dw_string_list_from_expression(scratch.arena, block_data, cu_base, address_size, arch, ver, ext, format); op_value = str8_list_join(scratch.arena, &block_expr, &(StringJoin){.pre = str8_lit("{ "), .sep = str8_lit(","), .post = str8_lit(" }")}); cursor += block_size; } break; case DW_ExprOp_Addrx: { U64 addr = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &addr); op_value = push_str8f(scratch.arena, "%#llx", addr); } break; case DW_ExprOp_CallFrameCfa: case DW_ExprOp_FormTlsAddress: case DW_ExprOp_PushObjectAddress: case DW_ExprOp_Nop: case DW_ExprOp_Eq: case DW_ExprOp_Ge: case DW_ExprOp_Gt: case DW_ExprOp_Le: case DW_ExprOp_Lt: case DW_ExprOp_Ne: case DW_ExprOp_Shl: case DW_ExprOp_Shr: case DW_ExprOp_Shra: case DW_ExprOp_Xor: case DW_ExprOp_XDeref: case DW_ExprOp_Abs: case DW_ExprOp_And: case DW_ExprOp_Div: case DW_ExprOp_Minus: case DW_ExprOp_Mod: case DW_ExprOp_Mul: case DW_ExprOp_Neg: case DW_ExprOp_Not: case DW_ExprOp_Or: case DW_ExprOp_Plus: case DW_ExprOp_Rot: case DW_ExprOp_Swap: case DW_ExprOp_Deref: case DW_ExprOp_Dup: case DW_ExprOp_Drop: case DW_ExprOp_Over: case DW_ExprOp_StackValue: { // no operands } break; } String8 opcode_str = dw_string_from_expr_op(scratch.arena, ver, ext, op); if (op_value.size == 0) { str8_list_pushf(arena, &result, "DW_OP_%S", opcode_str); } else { str8_list_pushf(arena, &result, "DW_OP_%S = %S", opcode_str, op_value); } } scratch_end(scratch); return result; } internal String8 dw_format_expression_single_line(Arena *arena, String8 raw_data, U64 cu_base, U64 address_size, Arch arch, DW_Version ver, DW_Ext ext, DW_Format format) { Temp scratch = scratch_begin(&arena, 1); String8List list = dw_string_list_from_expression(scratch.arena, raw_data, cu_base, address_size, arch, ver, ext, format); String8 expression = str8_list_join(arena, &list, &(StringJoin){.sep=str8_lit(", ")}); scratch_end(scratch); return expression; } internal void dw_print_cfi_program(Arena *arena, String8List *out, String8 indent, String8 raw_data, DW_CIEUnpacked *cie, DW_EhPtrCtx *ptr_ctx, Arch arch, DW_Version ver, DW_Ext ext, DW_Format format) { Temp scratch = scratch_begin(&arena, 1); U64 address_bit_size = bit_size_from_arch(arch); U64 address_size = address_bit_size / 8; for (U64 cursor = 0; cursor < raw_data.size; /* empty */) { DW_CFA opcode = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &opcode); U64 operand = 0; if ((opcode & DW_CFAMask_OpcodeHi) != 0) { operand = opcode & DW_CFAMask_Operand; opcode = opcode & DW_CFAMask_OpcodeHi; } switch (opcode) { case DW_CFA_Nop: { rd_printf("DW_CFA_nop"); } break; case DW_CFA_SetLoc: { U64 address = 0; switch (arch) { case Arch_x64: cursor += dw_unwind_parse_pointer_x64(raw_data.str, rng_1u64(0,raw_data.size), ptr_ctx, cie->addr_encoding, cursor, &address); break; default: NotImplemented; break; } rd_printf("DW_CFA_set_loc: %#llx", address); } break; case DW_CFA_AdvanceLoc1: { U8 delta = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &delta); rd_printf("DW_CFA_advance_loc1: %+u", delta * cie->code_align_factor); } break; case DW_CFA_AdvanceLoc2: { U16 delta = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &delta); rd_printf("DW_CFA_advance_loc2: %+u", delta * cie->code_align_factor); } break; case DW_CFA_AdvanceLoc4: { U32 delta = 0; cursor += str8_deserial_read_struct(raw_data, cursor, &delta); rd_printf("DW_CFA_advance_loc4: %+u", delta * cie->code_align_factor); } break; case DW_CFA_OffsetExt: { U64 reg_idx = 0, reg_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_off); rd_printf("DW_CFA_offset_extended: %S register %llu (%S), offset %+llu", dw_string_from_reg_off(scratch.arena, arch, reg_idx, (S64)reg_off * cie->data_align_factor)); } break; case DW_CFA_RestoreExt: { rd_printf("DW_CFA_restore_extended"); } break; case DW_CFA_Undefined: { U64 reg = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®); rd_printf("DW_CFA_undefined: %llu", reg); } break; case DW_CFA_SameValue: { U64 reg = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®); rd_printf("DW_CFA_same_value: %S", dw_string_from_register(scratch.arena, arch, reg)); } break; case DW_CFA_Register: { U64 reg_idx = 0, reg_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_off); rd_printf("DW_CFA_register: %S", dw_string_from_reg_off(scratch.arena, arch, reg_idx, reg_off)); } break; case DW_CFA_RememberState: { rd_printf("DW_CFA_remember_state"); } break; case DW_CFA_RestoreState: { rd_printf("DW_CFA_restore_state"); } break; case DW_CFA_DefCfa: { U64 reg_idx = 0, reg_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_off); rd_printf("DW_CFA_def_cfa: %S", dw_string_from_reg_off(scratch.arena, arch, reg_idx, reg_off)); } break; case DW_CFA_DefCfaRegister: { U64 reg = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®); rd_printf("DW_CFA_register: %llu (%S)", reg, dw_string_from_register(arena, arch, reg)); } break; case DW_CFA_DefCfaOffset: { U64 offset = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &offset); rd_printf("DW_CFA_def_cfa_offset: %llu", offset); } break; case DW_CFA_DefCfaExpr: { U64 block_size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &block_size); String8 raw_expr = str8_substr(raw_data, rng_1u64(cursor, cursor + block_size)); cursor += block_size; rd_printf("DW_CFA_def_cfa_expression: %S", dw_format_expression_single_line(scratch.arena, raw_expr, 0, address_size, arch, ver, ext, format)); } break; case DW_CFA_Expr: { U64 reg = 0, block_size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®); cursor += str8_deserial_read_uleb128(raw_data, cursor, &block_size); String8 raw_expr = str8_substr(raw_data, rng_1u64(cursor, cursor + block_size)); cursor += block_size; rd_printf("DW_CFA_expression: %S, expression %S", dw_string_from_register(scratch.arena, arch, reg), dw_format_expression_single_line(scratch.arena, raw_expr, 0, address_size, arch, ver, ext, format)); } break; case DW_CFA_OffsetExtSf: { U64 reg_idx = 0; S64 reg_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_sleb128(raw_data, cursor, ®_off); rd_printf("DW_CFA_offset_ext_sf: %S", dw_string_from_reg_off(scratch.arena, arch, reg_idx, reg_off * cie->data_align_factor)); } break; case DW_CFA_DefCfaSf: { U64 reg_idx = 0; S64 reg_off = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, ®_idx); cursor += str8_deserial_read_sleb128(raw_data, cursor, ®_off); rd_printf("DW_CFA_def_cfa_sf: %S", dw_string_from_reg_off(scratch.arena, arch, reg_idx, reg_off * cie->data_align_factor)); } break; case DW_CFA_ValOffset: { U64 val = 0, offset = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &val); cursor += str8_deserial_read_uleb128(raw_data, cursor, &offset); rd_printf("DW_CFA_val_offset: value %llu, offset %+llu", val, offset); } break; case DW_CFA_ValOffsetSf: { U64 val = 0; S64 offset = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &val); cursor += str8_deserial_read_sleb128(raw_data, cursor, &offset); rd_printf("DW_CFA_val_offset_sf: value %llu, offset %+lld", val, offset); } break; case DW_CFA_ValExpr: { U64 val = 0; U64 block_size = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &val); cursor += str8_deserial_read_uleb128(raw_data, cursor, &block_size); String8 raw_expr = str8_substr(raw_data, rng_1u64(cursor, cursor + block_size)); cursor += block_size; rd_printf("DW_CFA_val_expr: value %+llu, expression %S", val, dw_format_expression_single_line(scratch.arena, raw_expr, 0, address_size, arch, ver, ext, format)); } break; case DW_CFA_AdvanceLoc: { rd_printf("DW_CFA_advance_loc: %+llu", operand); } break; case DW_CFA_Offset: { U64 offset = 0; cursor += str8_deserial_read_uleb128(raw_data, cursor, &offset); S64 v = (S64)offset * cie->data_align_factor; rd_printf("DW_CFA_offset: %S", dw_string_from_reg_off(scratch.arena, arch, operand, v)); } break; case DW_CFA_Restore: { rd_printf("DW_CFA_restore: %S", operand, dw_string_from_register(scratch.arena, arch, operand)); } break; default: { rd_errorf("unknown CFI opcode %u", opcode); } break; } } scratch_end(scratch); } internal String8 dw_format_eh_ptr_enc(Arena *arena, DW_EhPtrEnc enc) { U8 type = enc & DW_EhPtrEnc_TypeMask; String8 type_str = str8_lit("NULL"); switch (type) { case DW_EhPtrEnc_Ptr: type_str = str8_lit("PTR"); break; case DW_EhPtrEnc_ULEB128: type_str = str8_lit("ULEB128"); break; case DW_EhPtrEnc_UData2: type_str = str8_lit("UDATA2"); break; case DW_EhPtrEnc_UData4: type_str = str8_lit("UDATA4"); break; case DW_EhPtrEnc_UData8: type_str = str8_lit("UDATA8"); break; case DW_EhPtrEnc_Signed: type_str = str8_lit("SIGNED"); break; case DW_EhPtrEnc_SLEB128: type_str = str8_lit("SLEB128"); break; case DW_EhPtrEnc_SData2: type_str = str8_lit("SDATA2"); break; case DW_EhPtrEnc_SData4: type_str = str8_lit("SDATA4"); break; case DW_EhPtrEnc_SData8: type_str = str8_lit("SDATA8"); break; } U8 modifier = enc & DW_EhPtrEnc_ModifyMask; String8 modifier_str = str8_lit("NULL"); switch (modifier) { case DW_EhPtrEnc_PcRel: modifier_str = str8_lit("PCREL"); break; case DW_EhPtrEnc_TextRel: modifier_str = str8_lit("TEXTREL"); break; case DW_EhPtrEnc_DataRel: modifier_str = str8_lit("DATAREL"); break; case DW_EhPtrEnc_FuncRel: modifier_str = str8_lit("FUNCREL"); break; } String8 indir_str = str8_lit(""); if (enc & DW_EhPtrEnc_Indirect) { indir_str = str8_lit("(INDIRECT)"); } return push_str8f(arena, "Type: %S, Modifier: %S %S", type_str, modifier_str, indir_str); } internal void dw_print_eh_frame(Arena *arena, String8List *out, String8 indent, String8 raw_eh_frame, Arch arch, DW_Version ver, DW_Ext ext, DW_EhPtrCtx *ptr_ctx) { Temp scratch = scratch_begin(&arena, 1); DW_CIEUnpacked cie = {0}; for (U64 cursor = 0; cursor < raw_eh_frame.size; ) { U64 header_offset = cursor; U64 length = 0; // doesn't include bytes for size cursor += dw_based_range_read_length(raw_eh_frame.str, rng_1u64(0,raw_eh_frame.size), cursor, &length); if (length == 0) { break; // encountered exit marker } U64 entry_start = cursor; U64 entry_end = cursor + length; U32 entry_id = 0; // always 4-bytes, even when length is encoded as 64-bit integer cursor += str8_deserial_read_struct(raw_eh_frame, cursor, &entry_id); // TODO: fix the freaking DW_EhPtrEnc_PCREL encoding. // it assumes "frame_base" points to the first byte of .eh_frame // but here base is start of ELF and we use range to select .eh_frame // bytes to read, which breaks parsing. String8 raw_frame = str8_substr(raw_eh_frame, rng_1u64(cursor, cursor + length - sizeof(entry_id))); Rng1U64 cfi_range = rng_1u64(0,0); // CIE if (entry_id == 0) { dw_unwind_parse_cie_x64(raw_frame.str, rng_1u64(0,raw_frame.size), ptr_ctx, 0, &cie); cfi_range = cie.cfi_range; rd_printf("CIE @ 0x%X, Length %u", header_offset, length); rd_indent(); rd_printf("LSDA Encoding: %S", dw_format_eh_ptr_enc(scratch.arena, cie.lsda_encoding)); rd_printf("Address Encoding: %S", dw_format_eh_ptr_enc(scratch.arena, cie.addr_encoding)); rd_printf("Augmentation: %S", cie.augmentation); rd_printf("Code Align Factor: %llu", cie.code_align_factor); rd_printf("Data Align Factor: %lld", cie.data_align_factor); rd_printf("Return Address Register: %u", cie.ret_addr_reg); rd_printf("Handler IP: %#llx", cie.handler_ip); rd_unindent(); } // FDE else { DW_FDEUnpacked fde = {0}; dw_unwind_parse_fde_x64(raw_eh_frame.str, rng_1u64(0,raw_eh_frame.size), ptr_ctx, &cie, 0, &fde); cfi_range = fde.cfi_range; // calc parent CIE offset AssertAlways(entry_start >= entry_id); U64 cie_offset = entry_start - entry_id; NotImplemented; // TODO: syms_safe_sub_u64(range.min + entry_start, entry_id); rd_printf("FDE @ %#llx, Length %u, Parent CIE @ %#llx", header_offset, length, cie_offset); rd_indent(); rd_printf("IP Range: %#llx-%#llx", fde.ip_voff_range.min, fde.ip_voff_range.max); rd_printf("LSDA IP: %#llx", fde.lsda_ip); rd_unindent(); } // print CFI program rd_printf("CFI Program:"); rd_indent(); DW_Format format = DW_FormatFromSize(length); String8 raw_cfi = str8_substr(raw_eh_frame, cfi_range); dw_print_cfi_program(scratch.arena, out, indent, raw_cfi, &cie, ptr_ctx, arch, ver, ext, format); rd_unindent(); rd_newline(); // advance to next entry cursor = entry_end; } scratch_end(scratch); } internal void dw_print_debug_line(Arena *arena, String8List *out, String8 indent, DW_Input *input, DW_ListUnitInput lu_input, B32 relaxed) { Temp scratch = scratch_begin(&arena, 1); rd_printf("# .debug_line"); Rng1U64List unit_ranges = dw_unit_ranges_from_data(scratch.arena, input->sec[DW_Section_Line].data); for (Rng1U64Node *unit_range_n = unit_ranges.first; unit_range_n != 0; unit_range_n = unit_range_n->next) { Temp unit_temp = temp_begin(scratch.arena); String8 unit_data = str8_substr(input->sec[DW_Section_Line].data, unit_range_n->v); String8 cu_dir = {0}; String8 cu_name = {0}; DW_ListUnit cu_str_offsets = {0}; DW_LineVMHeader line_vm = {0}; U64 line_vm_size = dw_read_line_vm_header(unit_temp.arena, unit_data, 0, input, cu_dir, cu_name, line_vm.address_size, &cu_str_offsets, &line_vm); if (line_vm_size == 0) { continue; } { rd_printf("Header:", line_vm_size); rd_indent(); String8List opcode_length_strings = numeric_str8_list_from_data(unit_temp.arena, 16, str8(line_vm.opcode_lens, line_vm.num_opcode_lens), 1); String8 opcode_lengths_string = str8_list_join(arena, &opcode_length_strings, &(StringJoin){.sep = str8_lit(", ")}); rd_printf("Version: %u", line_vm.version ); rd_printf("Line table offset: %#llx", line_vm.unit_range.min ); rd_printf("Line table length: %llu", dim_1u64(line_vm.unit_range) ); rd_printf("Version: %u", line_vm.version ); rd_printf("Address size: %u", line_vm.address_size ); rd_printf("Segment selector size: %u", line_vm.segment_selector_size); rd_printf("Header length: %llu", line_vm.header_length ); rd_printf("Min instruction length: %u", line_vm.min_inst_len ); rd_printf("Max ops for instruction: %u", line_vm.max_ops_for_inst ); rd_printf("Default Is Stmt: %u", line_vm.default_is_stmt ); rd_printf("Line base: %d", line_vm.line_base ); rd_printf("Line range: %u", line_vm.line_range ); rd_printf("Opcode base: %u", line_vm.opcode_base ); rd_printf("Opcode lengths: %S", opcode_lengths_string ); rd_unindent(); rd_newline(); } { rd_printf("Directory Table:"); rd_indent(); rd_printf("%-4s %-8s", "No.", "String"); for (U64 dir_idx = 0; dir_idx < line_vm.dir_table.count; ++dir_idx) { rd_printf("%-4llu %S", dir_idx, line_vm.dir_table.v[dir_idx]); } rd_unindent(); rd_newline(); } { rd_printf("File Table:"); rd_indent(); rd_printf("%-4s %-8s %-8s %-33s %-8s %-8s", "No.", "DirIdx", "Time", "MD5", "Size", "Name"); for (U64 file_idx = 0; file_idx < line_vm.file_table.count; ++file_idx) { DW_LineFile *file = &line_vm.file_table.v[file_idx]; rd_printf("%-4llu %-8llu %-8llu %016llx-%016llx %-8llu %S", file_idx, file->dir_idx, file->modify_time, file->md5_digest.u64[1], file->md5_digest.u64[0], file->file_size, file->file_name); } rd_unindent(); rd_newline(); } { rd_printf("Opcodes:"); rd_indent(); String8 opcodes = str8_skip(unit_data, line_vm_size); B32 end_of_seq = 0; DW_LineVMState vm_state = {0}; dw_line_vm_reset(&vm_state, line_vm.default_is_stmt); for (U64 cursor = 0; cursor < opcodes.size; ) { Temp opcode_temp = temp_begin(unit_temp.arena); String8List opcode_fmt = {0}; // opcode offset str8_list_pushf(opcode_temp.arena, &opcode_fmt, "[%08llx]", cursor); // parse opcode U8 opcode = 0; cursor += str8_deserial_read_struct(opcodes, cursor, &opcode); // push opcode id String8 opcode_str = dw_string_from_std_opcode(opcode_temp.arena, opcode); str8_list_push(arena, &opcode_fmt, opcode_str); // format operands switch (opcode) { default: { if (opcode >= line_vm.opcode_base) { U32 adjusted_opcode = 0; U32 op_advance = 0; S32 line_advance = 0; U64 addr_advance = 0; if (line_vm.line_range > 0 && line_vm.max_ops_for_inst > 0) { adjusted_opcode = (U32)(opcode - line_vm.opcode_base); op_advance = adjusted_opcode / line_vm.line_range; line_advance = (S32)line_vm.line_base + ((S32)adjusted_opcode) % (S32)line_vm.line_range; addr_advance = line_vm.min_inst_len * ((vm_state.op_index+op_advance) / line_vm.max_ops_for_inst); } vm_state.address += addr_advance; vm_state.op_index = (vm_state.op_index + op_advance) % line_vm.max_ops_for_inst; vm_state.line = (U32)((S32)vm_state.line + line_advance); vm_state.basic_block = 0; vm_state.prologue_end = 0; vm_state.epilogue_begin = 0; vm_state.discriminator = 0; end_of_seq = 0; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "advance line by %d, advance address by %lld", line_advance, addr_advance); } else { if (opcode > 0 && opcode <= line_vm.num_opcode_lens) { str8_list_pushf(opcode_temp.arena, &opcode_fmt, "skip operands:"); U64 num_operands = line_vm.opcode_lens[opcode - 1]; for (U8 i = 0; i < num_operands; i += 1){ U64 operand = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &operand); str8_list_pushf(opcode_temp.arena, &opcode_fmt, " %llx", operand); } } } }break; case DW_StdOpcode_Copy: { str8_list_pushf(opcode_temp.arena, &opcode_fmt, "Line = %u, Column = %u, Address = %#llx", vm_state.line, vm_state.column, vm_state.address); end_of_seq = 0; vm_state.discriminator = 0; vm_state.basic_block = 0; vm_state.prologue_end = 0; vm_state.epilogue_begin = 0; } break; case DW_StdOpcode_AdvancePc: { U64 advance = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &advance); dw_line_vm_advance(&vm_state, advance, line_vm.min_inst_len, line_vm.max_ops_for_inst); str8_list_pushf(opcode_temp.arena, &opcode_fmt, "advance %#llx ; current address %#llx", advance, vm_state.address); } break; case DW_StdOpcode_AdvanceLine: { S64 advance = 0; cursor += str8_deserial_read_sleb128(opcodes, cursor, &advance); vm_state.line += advance; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "advance %lld ; current line %u", advance, vm_state.line); } break; case DW_StdOpcode_SetFile: { U64 file_idx = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &file_idx); vm_state.file_index = file_idx; String8 path = dw_path_from_file_idx(opcode_temp.arena, &line_vm, file_idx); str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%llu \"%S\"", file_idx, path); } break; case DW_StdOpcode_SetColumn: { U64 column = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &column); vm_state.column = column; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%llu", column); } break; case DW_StdOpcode_NegateStmt: { vm_state.is_stmt = !vm_state.is_stmt; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "is_stmt = %u", vm_state.is_stmt); } break; case DW_StdOpcode_SetBasicBlock: { vm_state.basic_block = 1; } break; case DW_StdOpcode_ConstAddPc: { U64 advance = (0xffu - line_vm.opcode_base)/line_vm.line_range; dw_line_vm_advance(&vm_state, advance, line_vm.min_inst_len, line_vm.max_ops_for_inst); str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%lld ; address %#llx", advance, vm_state.address); }break; case DW_StdOpcode_FixedAdvancePc: { U64 operand = 0; cursor += str8_deserial_read_struct(opcodes, cursor, &operand); vm_state.address += operand; vm_state.op_index = 0; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%llu", operand); } break; case DW_StdOpcode_SetPrologueEnd: { vm_state.prologue_end = 1; } break; case DW_StdOpcode_SetEpilogueBegin: { vm_state.epilogue_begin = 1; } break; case DW_StdOpcode_SetIsa: { U64 v = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &v); vm_state.isa = v; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%llu", v); } break; case DW_StdOpcode_ExtendedOpcode: { U64 length = 0; U8 ext_opcode = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &length); U64 opcode_end = cursor + length; cursor += str8_deserial_read_struct(opcodes, cursor, &ext_opcode); String8 ext_opcode_str = dw_string_from_ext_opcode(opcode_temp.arena, ext_opcode); //str8_list_pushf(opcode_temp.arena, &opcode_fmt, "length: %u", length); str8_list_push(opcode_temp.arena, &opcode_fmt, ext_opcode_str); switch (ext_opcode) { case DW_ExtOpcode_EndSequence: { vm_state.end_sequence = 1; dw_line_vm_reset(&vm_state, line_vm.default_is_stmt); end_of_seq = 1; } break; case DW_ExtOpcode_SetAddress: { U64 address = 0; cursor += str8_deserial_read(opcodes, cursor, &address, line_vm.address_size, line_vm.address_size); vm_state.address = address; vm_state.op_index = 0; str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%#llx", address); } break; case DW_ExtOpcode_DefineFile: { String8 file_name = {0}; cursor += str8_deserial_read_cstr(opcodes, cursor, &file_name); U64 dir_idx = 0, modify_time = 0, file_size = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &dir_idx); cursor += str8_deserial_read_uleb128(opcodes, cursor, &modify_time); cursor += str8_deserial_read_uleb128(opcodes, cursor, &file_size); str8_list_pushf(opcode_temp.arena, &opcode_fmt, "%S Dir: %llu, Time: %llu, Size: %llu", file_name, dir_idx, modify_time, file_size); } break; case DW_ExtOpcode_SetDiscriminator: { U64 v = 0; cursor += str8_deserial_read_uleb128(opcodes, cursor, &v); vm_state.discriminator = v; str8_list_pushf(arena, &opcode_fmt, "%llu", v); } break; } cursor = opcode_end; } break; } String8 string = str8_list_join(opcode_temp.arena, &opcode_fmt, &(StringJoin){.sep=str8_lit(" ")}); rd_printf("%S", string); temp_end(opcode_temp); } rd_unindent(); rd_newline(); } temp_end(unit_temp); } scratch_end(scratch); } internal void dw_print_debug_str(Arena *arena, String8List *out, String8 indent, DW_Input *input) { String8 data = input->sec[DW_Section_Str].data; rd_printf("# %S", input->sec[DW_Section_Str].name); rd_indent(); for (U64 cursor = 0, read_size = 0; cursor < data.size; cursor += read_size) { String8 string = {0}; read_size = str8_deserial_read_cstr(data, cursor, &string); rd_printf("[%08llx] { %llu, \"%S\" }", cursor, string.size, string); } rd_unindent(); } internal void dw_print_debug_loc(Arena *arena, String8List *out, String8 indent, DW_Input *input, Arch arch, ExecutableImageKind image_type, B32 relaxed) { #if 0 DW_Section info = input->sec[DW_Section_Info]; DW_Section loc = input->sec[DW_Section_Loc]; if (loc.data.size == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", input->sec[DW_Section_Loc].name); rd_indent(); // TODO: warn about overlaps in ranges Rng1U64List cu_range_list = dw_comp_unit_ranges_from_info(scratch.arena, info); // parse debug_info for attributes with LOCLIST and store .debug_loc offsets U64List *loc_lists = push_array(scratch.arena, U64List, cu_range_list.count); U64 *address_sizes = push_array(scratch.arena, U64, cu_range_list.count); U64 *address_bases = push_array(scratch.arena, U64, cu_range_list.count); U64 *cu_bases = push_array(scratch.arena, U64, cu_range_list.count); DW_Version *ver_arr = push_array(scratch.arena, DW_Version, cu_range_list.count); DW_Ext *ext_arr = push_array(scratch.arena, DW_Ext, cu_range_list.count); U64 comp_idx = 0; for (Rng1U64Node *cu_range_n = cu_range_list.first; cu_range_n != 0; cu_range_n = cu_range_n->next, ++comp_idx) { Temp comp_temp = temp_begin(arena); Rng1U64 cu_range = cu_range_n->v; DW_CompUnit cu = dw_comp_unit_from_info_off(comp_temp.arena, input, cu_range.min, relaxed); // store info about comp unit address_sizes[comp_idx] = cu.address_size; address_bases[comp_idx] = cu.base_addr; ver_arr[comp_idx] = cu.version; cu_bases[comp_idx] = cu_range_n->v.min; // parse tags for (U64 info_off = cu.tags_range.min; info_off < cu.tags_range.max; /* empty */) { Temp tag_temp = temp_begin(scratch.arena); DW_Tag tag = dw_tag_from_info_offset_cu(tag_temp.arena, input, &cu, ext_arr[comp_idx], info_off); // parse attribs for (DW_AttribNode *attrib_node = tag.attribs.first; attrib_node != 0; attrib_node = attrib_node->next) { DW_Attrib *attrib = &attrib_node->v; B32 is_sect_offset = attrib->value_class == DW_AttribClass_LocListPtr || (attrib->value_class == DW_AttribClass_LocList && attrib->form_kind == DW_Form_SecOffset); B32 is_sect_index = attrib->value_class == DW_AttribClass_LocList && attrib->form_kind == DW_Form_LocListx; if (is_sect_offset) { u64_list_push(scratch.arena, &loc_lists[comp_idx], attrib->value.v[0]); } else if (is_sect_index) { // TODO: support for section indexing } } // advance to next tag info_off = tag.next_info_off; temp_end(tag_temp); } temp_end(comp_temp); } void *base = dw_base_from_sec(input, DW_Section_Loc); Rng1U64 range = dw_range_from_sec(input, DW_Section_Loc); rd_printf(".debug_loc"); rd_indent(); rd_printf("%-8s %-8s %-8s %s", "Offset", "Min", "Max", "Expression"); for (U32 comp_idx = 0; comp_idx < cu_range_list.count; ++comp_idx) { Temp locs_temp = temp_begin(scratch.arena); DW_Version ver = ver_arr[comp_idx]; DW_Ext ext = ext_arr[comp_idx]; U64Array locs = u64_array_from_list(locs_temp.arena, &loc_lists[comp_idx]); u64_array_sort(locs.count, locs.v); U64Array locs_set = remove_duplicates_u64_array(locs_temp.arena, locs); U64 address_size = address_sizes[comp_idx]; U64 base_selector = (address_size == 8) ? max_U64 : max_U32; for (U64 loc_idx = 0; loc_idx < locs_set.count; ++loc_idx) { U64 base_address = address_bases[comp_idx]; for (U64 cursor = locs_set.v[loc_idx]; cursor < dim_1u64(range); /* empty */) { Temp range_temp = temp_begin(arena); String8List list = {0}; // offset str8_list_pushf(range_temp.arena, &list, "%08llx", cursor); // parse entry U64 v0 = 0, v1 = 0; cursor += dw_based_range_read(base, range, cursor, address_size, &v0); cursor += dw_based_range_read(base, range, cursor, address_size, &v1); B32 is_list_end = v0 == 0 && v1 == 0; if (is_list_end) { str8_list_pushf(range_temp.arena, &list, ""); } else if (v0 == base_selector) { base_address = v1; } else { U16 expr_size = 0; cursor += dw_based_range_read_struct(base, range, cursor, &expr_size); Rng1U64 expr_range = rng_1u64(range.min+cursor, range.min+cursor+expr_size); cursor += expr_size; // format dwarf expression B32 is_dwarf64 = (address_size == 8); String8 raw_expr = str8((U8*)base+expr_range.min, dim_1u64(expr_range)); String8 expression = dw_format_expression_single_line(range_temp.arena, raw_expr, cu_bases[comp_idx], address_size, arch, ver, ext, input->sec[DW_Section_Loc].mode); // push entry U64 min = base_address + v0; U64 max = base_address + v1; str8_list_pushf(range_temp.arena, &list, "%08llx %08llx %S", min, max, expression); } // print entry String8 print = str8_list_join(range_temp.arena, &list, &(StringJoin){.sep=str8_lit(" ")}); rd_printf("%S", print); // cleanup temp temp_end(range_temp); // exit check if (is_list_end) { break; } } } temp_end(locs_temp); } rd_unindent(); rd_unindent(); scratch_end(scratch); #endif } internal void dw_print_debug_ranges(Arena *arena, String8List *out, String8 indent, DW_Input *input, Arch arch, ExecutableImageKind image_type, B32 relaxed) { NotImplemented; #if 0 DW_Section ranges = input->sec[DW_Section_Ranges]; void *base = dw_base_from_sec(input, DW_Section_Ranges); Rng1U64 range = dw_range_from_sec(input, DW_Section_Ranges); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); Rng1U64List cu_range_list = dw_comp_unit_ranges_from_info(scratch.arena, sections->v[DW_Section_Info]); // parse debug_info for attributes with LOCLIST and store .debug_loc offsets U64List *loc_lists = push_array(scratch.arena, U64List, cu_range_list.count); U64 *address_sizes = push_array(scratch.arena, U64, cu_range_list.count); U64 *address_bases = push_array(scratch.arena, U64, cu_range_list.count); { U64 comp_idx = 0; for (Rng1U64Node *cu_range_n = cu_range_list.first; cu_range_n != 0; cu_range_n = cu_range_n->next, ++comp_idx) { Rng1U64 cu_range = cu_range_n->v; DW_CompUnit cu = dw_comp_unit_from_info_offset(scratch.arena, sections, cu_range.min, relaxed); // store info about comp unit address_sizes[comp_idx] = cu.address_size; address_bases[comp_idx] = cu.base_addr; // parse tags for (U64 info_off = cu.tags_range.min; info_off < cu.tags_range.max; /* empty */) { DW_Tag tag = dw_tag_from_info_offset_cu(scratch.arena, sections, &cu, info_off); // parse attribs for (DW_AttribNode *attrib_node = tag.attribs.first; attrib_node != 0; attrib_node = attrib_node->next) { DW_Attrib *attrib = &attrib_node->v; B32 is_sect_offset = attrib->value_class == DW_AttribClass_RngListPtr || (attrib->value_class == DW_AttribClass_RngList && attrib->form_kind == DW_Form_SecOffset); B32 is_sect_index = attrib->value_class == DW_AttribClass_RngList && attrib->form_kind == DW_Form_RngListx; if (is_sect_offset) { u64_list_push(scratch.arena, &loc_lists[comp_idx], attrib->value.v[0]); } else if (is_sect_index) { // TODO: support for section indexing } } info_off = tag.next_info_off; } } } rd_printf("# %S", sections->v[DW_Section_Ranges].name); rd_indent(); rd_printf("%-8s %-8s %-8s", "Offset", "Min", "Max"); for (U32 comp_idx = 0; comp_idx < cu_range_list.count; ++comp_idx) { U64Array locs = u64_array_from_list(scratch.arena, &loc_lists[comp_idx]); u64_array_sort(locs.count, locs.v); U64Array locs_set = remove_duplicates_u64_array(scratch.arena, locs); U64 address_size = address_sizes[comp_idx]; U64 base_selector = (address_size == 8) ? max_U64 : max_U32; for (U64 loc_idx = 0; loc_idx < locs_set.count; ++loc_idx) { U64 base_address = address_bases[comp_idx]; for (U64 cursor = locs_set.v[loc_idx]; cursor < dim_1u64(range); /* empty */) { Temp range_temp = temp_begin(scratch.arena); String8List list = {0}; // offset str8_list_pushf(range_temp.arena, &list, "%08llx", cursor); // parse entry U64 v0 = 0, v1 = 0; cursor += dw_based_range_read(base, range, cursor, address_size, &v0); cursor += dw_based_range_read(base, range, cursor, address_size, &v1); B32 is_list_end = v0 == 0 && v1 == 0; if (is_list_end) { str8_list_pushf(range_temp.arena, &list, ""); } else if (v0 == base_selector) { base_address = v1; } else { // push entry U64 min = base_address + v0; U64 max = base_address + v1; str8_list_pushf(range_temp.arena, &list, "%08llx %08llx", min, max); } // print entry String8 print = str8_list_join(range_temp.arena, &list, &(StringJoin){.sep=str8_lit(" ")}); rd_printf("%S", print); temp_end(range_temp); // exit check if (is_list_end) { break; } } } } #endif } internal void dw_print_debug_aranges(Arena *arena, String8List *out, String8 indent, DW_Input *input) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, DW_Section_ARanges); Rng1U64 range = dw_range_from_sec(sections, DW_Section_ARanges); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[DW_Section_ARanges].name); rd_indent(); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 unit_length = 0; DW_Version version = 0; U64 debug_info_offset = 0; U8 address_size = 0; U8 segment_selector_size = 0; cursor += dw_based_range_read_length(base, range, cursor, &unit_length); U64 unit_opl = cursor + unit_length; cursor += dw_based_range_read_struct(base, range, cursor, &version); B32 is_dwarf64 = unit_length >= max_U32; U64 int_size = is_dwarf64 ? sizeof(U64) : sizeof(U32); cursor += dw_based_range_read(base, range, cursor, int_size, &debug_info_offset); cursor += dw_based_range_read_struct(base, range, cursor, &address_size); cursor += dw_based_range_read_struct(base, range, cursor, &segment_selector_size); U64 tuple_size = address_size * 2 + segment_selector_size; U64 bytes_too_far_past_boundary = cursor % tuple_size; if (bytes_too_far_past_boundary > 0) { cursor += tuple_size - bytes_too_far_past_boundary; } rd_printf("Unit length: %llu", unit_length); rd_printf("Version: %u", version); rd_printf("Debug info offset: %#llx", debug_info_offset); rd_printf("Address size: %u", address_size); rd_printf("Segment selector size: %u", segment_selector_size); if (version != DW_Version_2) { rd_warningf("Version value must be 2 (DWARF5 sepc, Feb 13, 2017)"); } rd_indent(); rd_printf("%-8s %-8s", "Offset", "Range"); for (; cursor < unit_opl; ) { Temp temp = temp_begin(arena); String8List list = {0}; str8_list_pushf(temp.arena, &list, "%08llx", cursor); U64 segment_selector = 0; U64 address = 0; U64 length = 0; cursor += dw_based_range_read(base, range, cursor, segment_selector_size, &segment_selector); cursor += dw_based_range_read(base, range, cursor, address_size, &address); cursor += dw_based_range_read(base, range, cursor, address_size, &length); if (segment_selector == 0 && address == 0 && length == 0) { str8_list_pushf(temp.arena, &list, ""); } else { if (segment_selector != 0) { str8_list_pushf(temp.arena, &list, "%02llu:", segment_selector); } str8_list_pushf(temp.arena, &list, "%llx-%llx", address, address+length); } String8 print = str8_list_join(temp.arena, &list, &(StringJoin){.sep=str8_lit(" ") }); rd_printf("%S", print); temp_end(temp); } rd_unindent(); rd_newline(); } rd_unindent(); scratch_end(scratch); #endif } internal void dw_print_debug_addr(Arena *arena, String8List *out, String8 indent, DW_Input *input) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, DW_Section_Addr); Rng1U64 range = dw_range_from_sec(sections, DW_Section_Addr); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[DW_Section_Addr].name); rd_indent(); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 unit_length = 0; DW_Version version = 0; U8 address_size = 0; U8 segment_selector_size = 0; U64 unit_offset = cursor; cursor += dw_based_range_read_length(base, range, cursor, &unit_length); U64 unit_opl = cursor + unit_length; cursor += dw_based_range_read_struct(base, range, cursor, &version); cursor += dw_based_range_read_struct(base, range, cursor, &address_size); cursor += dw_based_range_read_struct(base, range, cursor, &segment_selector_size); U64 tuple_size = address_size * 2 + segment_selector_size; U64 bytes_too_far_past_boundary = cursor % tuple_size; if (bytes_too_far_past_boundary > 0) { cursor += tuple_size - bytes_too_far_past_boundary; } rd_printf("Unit @ %#llx, length %llu", unit_offset, unit_length); rd_printf("Version: %u", version); rd_printf("Address size: %u", address_size); rd_printf("Segment selector size: %u", segment_selector_size); if (version != DW_Version_2) { rd_warningf("Version value must be 5 (DWARF5 sepc, Feb 13, 2017)"); } rd_indent(); rd_printf("%-8s %-8s", "Offset", "Address"); for (; cursor < unit_opl; ) { Temp temp = temp_begin(arena); String8List list = {0}; str8_list_pushf(temp.arena, &list, "%08X", cursor); U64 segment_selector = 0; U64 address = 0; cursor += dw_based_range_read(base, range, cursor, segment_selector_size, &segment_selector); cursor += dw_based_range_read(base, range, cursor, address_size, &address); if (segment_selector == 0 && address == 0) { str8_list_pushf(temp.arena, &list, ""); } else { if (segment_selector != 0) { str8_list_pushf(temp.arena, &list, "%02u:", segment_selector); } str8_list_pushf(temp.arena, &list, "%llx", address); } String8 print = str8_list_join(arena, &list, &(StringJoin){.sep=str8_lit(" ")}); rd_printf("%S", print); temp_end(temp); } rd_unindent(); rd_newline(); } rd_unindent(); scratch_end(scratch); #endif } internal U64 dw_based_range_read_address(void *base, Rng1U64 range, U64 offset, Rng1U64Array segment_ranges, U8 segment_selector_size, U8 address_size, U64 *address_out) { U64 read_offset = offset; // read segment U64 segment_selector = 0; read_offset += dw_based_range_read(base, range, read_offset, segment_selector_size, &segment_selector); // read address U64 address = 0; read_offset += dw_based_range_read(base, range, read_offset, address_size, &address); // apply segment offset B32 is_address_segment_relative = segment_selector_size > 0; if (is_address_segment_relative) { if (segment_selector < segment_ranges.count) { address += segment_ranges.v[segment_selector].min; } else { Assert(!"invalid segment selector"); } } U64 read_size = (read_offset - offset); return read_size; } internal void dw_print_debug_loclists(Arena *arena, String8List *out, String8 indent, DW_Input *input, Rng1U64Array segment_virtual_ranges, Arch arch) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, DW_Section_LocLists); Rng1U64 range = dw_range_from_sec(sections, DW_Section_LocLists); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[DW_Section_LocLists].name); rd_indent(); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 unit_offset = cursor; U64 unit_length = 0; cursor += dw_based_range_read_length(base, range, cursor, &unit_length); U64 unit_opl = cursor + unit_length; DW_Version version = 0; U8 address_size = 0; U8 segment_selector_size = 0; U32 offset_entry_count = 0; cursor += dw_based_range_read_struct(base, range, cursor, &version); cursor += dw_based_range_read_struct(base, range, cursor, &address_size); cursor += dw_based_range_read_struct(base, range, cursor, &segment_selector_size); cursor += dw_based_range_read_struct(base, range, cursor, &offset_entry_count); U64 past_header_offset = cursor; B32 is_dwarf64 = unit_length > max_U32; U64 offset_size = is_dwarf64 ? sizeof(U64) : sizeof(U32); rd_printf("Unit @ %#llx, length %llu", unit_offset, unit_length); rd_printf("Version: %u", version); rd_printf("Address size: %u", address_size); rd_printf("Segment selector size: %u", segment_selector_size); rd_printf("Offset entry count: %u", offset_entry_count); if (version != DW_Version_5) { rd_warningf("Version value must be 5 (DWARF5 sepc, Feb 13, 2017)"); } if (offset_entry_count > 0) { rd_printf("Offsets:"); rd_indent(); rd_printf("%-8s %-8s", "Index", "Offset"); for (U64 offset_idx = 0; offset_idx < offset_entry_count; ++offset_idx) { U64 offset = 0; cursor += dw_based_range_read(base, range, cursor, offset_size, &offset); rd_printf("%-8llu %llx", offset_idx, offset+past_header_offset); } rd_unindent(); } rd_printf("Locations:"); rd_indent(); rd_printf("%-8s %-8s", "Offset", "Location"); for (; cursor < unit_opl; ) { Temp temp = temp_begin(arena); String8List list = {0}; str8_list_pushf(temp.arena, &list, "%08llx", cursor); U8 kind = 0; cursor += dw_based_range_read_struct(base, range, cursor, &kind); str8_list_pushf(temp.arena, &list, "DW_LLE_%S", dw_string_from_loc_list_entry_kind(temp.arena, kind)); B32 has_loc_desc = 0; switch (kind) { case DW_LocListEntryKind_EndOfList: break; case DW_LocListEntryKind_DefaultLocation: { has_loc_desc = 1; } break; case DW_LocListEntryKind_BaseAddress: { U64 base_address = 0; cursor += dw_based_range_read_address(base, range, cursor, segment_virtual_ranges, segment_selector_size, address_size, &base_address); str8_list_pushf(temp.arena, &list, "%llx", base_address); } break; case DW_LocListEntryKind_StartLength: { U64 start = 0; U64 length = 0; cursor += dw_based_range_read_address(base, range, cursor, segment_virtual_ranges, segment_selector_size, address_size, &start); cursor += dw_based_range_read_uleb128(base, range, cursor, &length); str8_list_pushf(temp.arena, &list, "%llx, %llx", start, length); } break; case DW_LocListEntryKind_StartEnd: { U64 start = 0; U64 end = 0; cursor += dw_based_range_read_address(base, range, cursor, segment_virtual_ranges, segment_selector_size, address_size, &start); cursor += dw_based_range_read_address(base, range, cursor, segment_virtual_ranges, segment_selector_size, address_size, &end); str8_list_pushf(temp.arena, &list, "%llx, %llx", start, end); } break; case DW_LocListEntryKind_BaseAddressX: { U64 base_addressx = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &base_addressx); str8_list_pushf(temp.arena, &list, "%llx", base_addressx); } break; case DW_LocListEntryKind_StartXEndX: { U64 startx = 0; U64 endx = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &startx); cursor += dw_based_range_read_uleb128(base, range, cursor, &endx); str8_list_pushf(temp.arena, &list, "%llx, %llx", startx, endx); } break; case DW_LocListEntryKind_OffsetPair: { U64 a = 0; U64 b = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &a); cursor += dw_based_range_read_uleb128(base, range, cursor, &b); str8_list_pushf(temp.arena, &list, "%llx, %llx", a, b); U8 expr_length = 0; cursor += dw_based_range_read_struct(base, range, cursor, &expr_length); String8 raw_expr = str8((U8*)base+cursor, expr_length); cursor += expr_length; // TODO: we need actual cu base to format expression correctly NotImplemented; String8 expression = dw_format_expression_single_line(temp.arena, raw_expr, 0, address_size, arch, version, DW_Ext_Null, is_dwarf64); str8_list_pushf(temp.arena, &list, "(%S)", expression); } break; case DW_LocListEntryKind_StartXLength: { U64 startx = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &startx); U64 length = 0; if (version < DW_Version_5) { // pre-standard length cursor += dw_based_range_read(base, range, cursor, sizeof(U32), &length); } else { cursor += dw_based_range_read_uleb128(base, range, cursor, &length); } } break; } String8 print = str8_list_join(temp.arena, &list, &(StringJoin){.sep=str8_lit(" ")}); rd_printf("%S", print); temp_end(temp); } rd_unindent(); rd_newline(); } rd_unindent(); scratch_end(scratch); #endif } internal void dw_print_debug_rnglists(Arena *arena, String8List *out, String8 indent, DW_Input *input, Rng1U64Array segment_ranges) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, DW_Section_RngLists); Rng1U64 range = dw_range_from_sec(sections, DW_Section_RngLists); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[DW_Section_RngLists].name); rd_indent(); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 unit_offset = cursor; U64 unit_length = 0; cursor += dw_based_range_read_length(base, range, cursor, &unit_length); U64 unit_opl = cursor + unit_length; DW_Version version = 0; U8 address_size = 0; U8 segment_selector_size = 0; U32 offset_entry_count = 0; cursor += dw_based_range_read_struct(base, range, cursor, &version); cursor += dw_based_range_read_struct(base, range, cursor, &address_size); cursor += dw_based_range_read_struct(base, range, cursor, &segment_selector_size); cursor += dw_based_range_read_struct(base, range, cursor, &offset_entry_count); U64 past_header_offset = cursor; B32 is_dwarf64 = unit_length > max_U32; U64 offset_size = is_dwarf64 ? sizeof(U64) : sizeof(U32); rd_printf("Unit @ %#llx, length %llu", unit_offset, unit_length); rd_printf("Version: %u", version); rd_printf("Address size: %u", address_size); rd_printf("Segment selector size: %u", segment_selector_size); rd_printf("Offset entry count: %u", offset_entry_count); if (version != DW_Version_5) { rd_warningf("Version value must be 5 (DWARF5 sepc, Feb 13, 2017)"); } if (offset_entry_count > 0) { rd_printf("Offsets:"); rd_indent(); rd_printf("%-8s %-8s", "Index", "Offset"); for (U64 offset_idx = 0; offset_idx < offset_entry_count; ++offset_idx) { U64 offset = 0; cursor += dw_based_range_read(base, range, cursor, offset_size, &offset); rd_printf("%-8llu %llx", offset_idx, offset+past_header_offset); } rd_unindent(); } rd_printf("Ranges:"); rd_indent(); rd_printf("%-8s %-8s", "Offset", "Range"); for (; cursor < unit_opl; ) { Temp temp = temp_begin(scratch.arena); String8List list = {0}; // offset str8_list_pushf(temp.arena, &list, "%08llx", cursor); // opcode mnemonic U8 kind = 0; cursor += dw_based_range_read_struct(base, range, cursor, &kind); str8_list_pushf(temp.arena, &list, "DW_RLE_%S", dw_string_from_rng_list_entry_kind(temp.arena, kind)); // operand switch (kind) { case DW_RngListEntryKind_EndOfList: { // empty } break; case DW_RngListEntryKind_BaseAddressX: { U64 base_addressx = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &base_addressx); str8_list_pushf(temp.arena, &list, "%llx", base_addressx); } break; case DW_RngListEntryKind_BaseAddress: { U64 base_address = 0; cursor += dw_based_range_read_address(base, range, cursor, segment_ranges, segment_selector_size, address_size, &base_address); str8_list_pushf(temp.arena, &list, "%llx", base_address); } break; case DW_RngListEntryKind_OffsetPair: { U64 min = 0; U64 max = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &min); cursor += dw_based_range_read_uleb128(base, range, cursor, &max); str8_list_pushf(temp.arena, &list, "%llx, %llx", min, max); } break; case DW_RngListEntryKind_StartxLength: { U64 startx = 0; U64 length = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &startx); cursor += dw_based_range_read_uleb128(base, range, cursor, &length); str8_list_pushf(temp.arena, &list, "%llx, %llx", startx, length); } break; case DW_RngListEntryKind_StartxEndx: { U64 startx = 0; U64 endx = 0; cursor += dw_based_range_read_uleb128(base, range, cursor, &startx); cursor += dw_based_range_read_uleb128(base, range, cursor, &endx); str8_list_pushf(temp.arena, &list, "%llx, %llx", startx, endx); } break; case DW_RngListEntryKind_StartEnd: { U64 start = 0; U64 end = 0; cursor += dw_based_range_read_address(base, range, cursor, segment_ranges, segment_selector_size, address_size, &start); cursor += dw_based_range_read_address(base, range, cursor, segment_ranges, segment_selector_size, address_size, &end); str8_list_pushf(temp.arena, &list, "%llx, %llx", start, end); } break; case DW_RngListEntryKind_StartLength: { U64 start = 0; U64 length = 0; cursor += dw_based_range_read_address(base, range, cursor, segment_ranges, segment_selector_size, address_size, &start); cursor += dw_based_range_read_uleb128(base, range, cursor, &length); str8_list_pushf(temp.arena, &list, "%llx, %llx", start, length); } break; } // output row String8 print = str8_list_join(temp.arena, &list, &(StringJoin){.sep=str8_lit(" ")}); rd_printf("%S", print); temp_end(temp); } rd_unindent(); rd_newline(); } rd_unindent(); scratch_end(scratch); #endif } internal void dw_format_string_table(Arena *arena, String8List *out, String8 indent, DW_Input *input, DW_SectionKind sec) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, sec); Rng1U64 range = dw_range_from_sec(sections, sec); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[sec].name); rd_indent(); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 unit_offset = cursor; U64 unit_length = 0; cursor += dw_based_range_read_length(base, range, cursor, &unit_length); U64 unit_opl = cursor + unit_length; DW_Version version = 0; cursor += dw_based_range_read_struct(base, range, cursor, &version); if (version != DW_Version_2) { rd_warningf("Version value must be 2"); } B32 is_dwarf64 = unit_length > max_U32; U32 sec_offset_size = is_dwarf64 ? sizeof(U64) : sizeof(U32); U64 debug_info_offset = 0, debug_info_length = 0; cursor += dw_based_range_read(base, range, cursor, sec_offset_size, &debug_info_offset); cursor += dw_based_range_read(base, range, cursor, sec_offset_size, &debug_info_length); rd_printf("Unit @ %#llx, length %llu", unit_offset, unit_length); rd_printf("Version: %u", version); rd_printf("Debug info offset: %#llx", debug_info_offset); rd_printf("Debug info length: %#llx", debug_info_length); rd_printf("Entries:"); rd_indent(); rd_printf("%-8s %-8s", "Offset", "String"); for (; cursor < unit_opl; ) { U64 info_offset = 0; cursor += dw_based_range_read(base, range, cursor, sec_offset_size, &info_offset); String8 string = dw_based_range_read_string(base, range, cursor); cursor += (string.size + 1); rd_printf("%08llx %S", info_offset, string); } rd_unindent(); rd_newline(); } rd_unindent(); scratch_end(scratch); #endif } internal void dw_print_debug_pubnames(Arena *arena, String8List *out, String8 indent, DW_Input *input) { dw_format_string_table(arena, out, indent, input, DW_Section_PubNames); } internal void dw_print_debug_pubtypes(Arena *arena, String8List *out, String8 indent, DW_Input *input) { dw_format_string_table(arena, out, indent, input, DW_Section_PubTypes); } internal void dw_print_debug_line_str(Arena *arena, String8List *out, String8 indent, DW_Input *input) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, DW_Section_LineStr); Rng1U64 range = dw_range_from_sec(sections, DW_Section_LineStr); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[DW_Section_LineStr].name); rd_indent(); rd_printf("%-8s %-8s", "Offset", "String"); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 offset = cursor; String8 string = dw_based_range_read_string(base, range, cursor); cursor += (string.size + 1); rd_printf("%08llX %S", offset, string); } rd_unindent(); scratch_end(scratch); #endif } internal void dw_print_debug_str_offsets(Arena *arena, String8List *out, String8 indent, DW_Input *input) { NotImplemented; #if 0 void *base = dw_base_from_sec(sections, DW_Section_StrOffsets); Rng1U64 range = dw_range_from_sec(sections, DW_Section_StrOffsets); void *debug_str_base = dw_base_from_sec(sections, DW_Section_Str); Rng1U64 debug_str_range = dw_range_from_sec(sections, DW_Section_Str); if (dim_1u64(range) == 0) { return; } Temp scratch = scratch_begin(&arena, 1); rd_printf("# %S", sections->v[DW_Section_StrOffsets].name); rd_indent(); for (U64 cursor = 0; cursor < dim_1u64(range); ) { U64 unit_offset = cursor; U64 unit_length = 0; cursor += dw_based_range_read_length(base, range, cursor, &unit_length); U64 unit_opl = cursor + unit_length; DW_Version version = 0; cursor += dw_based_range_read_struct(base, range, cursor, &version); if (version != DW_Version_5) { rd_warningf("Version value must be 5 (DWARF5 sepc, Feb 13, 2017)"); } U16 padding = 0; cursor += dw_based_range_read_struct(base, range, cursor, &padding); if (padding != 0) { rd_warningf("unexpected padding byte"); } B32 is_dwarf64 = unit_length > max_U32; U32 offset_size = is_dwarf64 ? sizeof(U64) : sizeof(U32); rd_printf("Unit @ %#llX, length %lld", unit_offset, unit_length); rd_printf("Version: %d", version); rd_printf("Padding: %d", padding); rd_indent(); rd_printf("%-8s %-8s", "@", "Offset"); for (; cursor < unit_opl; ) { U64 read_at = cursor; U64 offset = 0; cursor += dw_based_range_read(base, range, cursor, offset_size, &offset); rd_printf("%08llx %08llx", read_at, offset); if (dim_1u64(debug_str_range) > 0) { String8 string = dw_based_range_read_string(debug_str_base, debug_str_range, offset); rd_printf(" %S", string); } rd_newline(); } rd_unindent(); rd_newline(); } rd_unindent(); scratch_end(scratch); #endif } internal String8List dw_dump_list_from_sections(Arena *arena, DW_Input *input, Arch arch, ExecutableImageKind image_type, DW_DumpSubsetFlags subset_flags) { String8List strings = {0}; String8 indent = str8_lit(" "); #define dump(str) str8_list_push(arena, &strings, (str)) #define dumpf(...) str8_list_pushf(arena, &strings, __VA_ARGS__) #define DumpSubset(name) if(subset_flags & DW_DumpSubsetFlag_##name) DeferLoop(dumpf("# %S\n\n", dw_name_title_from_dump_subset_table[DW_DumpSubset_##name]), dump(str8_lit("\n"))) Temp scratch = scratch_begin(&arena, 1); Rng1U64Array segment_vranges = {0}; DW_ListUnitInput lu_input = dw_list_unit_input_from_input(scratch.arena, input); Rng1U64List unit_ranges_list = dw_unit_ranges_from_data(scratch.arena, input->sec[DW_Section_Info].data); Rng1U64Array unit_ranges = rng1u64_array_from_list(scratch.arena, &unit_ranges_list); B32 relaxed = 1; ////////////////////////////// //- rjf: dump .debug_info // DumpSubset(DebugInfo) { for EachIndex(unit_idx, unit_ranges.count) { Temp unit_temp = temp_begin(scratch.arena); //- rjf: unpack unit Rng1U64 unit_range = unit_ranges.v[unit_idx]; DW_CompUnit unit = dw_cu_from_info_off(unit_temp.arena, input, lu_input, unit_range.min, relaxed); String8 unit_dir = dw_string_from_tag_attrib_kind(input, &unit, unit.tag, DW_AttribKind_CompDir ); String8 unit_name = dw_string_from_tag_attrib_kind(input, &unit, unit.tag, DW_AttribKind_Name ); String8 stmt_list = dw_line_ptr_from_tag_attrib_kind(input, &unit, unit.tag, DW_AttribKind_StmtList); DW_LineVMHeader line_vm = {0}; dw_read_line_vm_header(unit_temp.arena, stmt_list, 0, input, unit_dir, unit_name, unit.address_size, unit.str_offsets_lu, &line_vm); //- rjf: log top-level unit info dumpf("unit: // compile_unit[%I64u]\n{\n", unit_idx); dumpf(" version: %u\n", unit.version); dumpf(" address_size: %I64u\n", unit.address_size); dumpf(" abbrev_off: 0x%I64x\n", unit.abbrev_off); dumpf(" info_range: [0x%I64x, 0x%I64x) // (%M)\n", unit.info_range.min, unit.info_range.max, dim_1u64(unit.info_range)); //- rjf: log tags S64 tag_depth = 0; U64 tag_idx = 0; for(U64 info_off = unit.first_tag_info_off; info_off < unit.info_range.max; tag_idx += 1) { Temp tag_temp = temp_begin(scratch.arena); // rjf: unpack tag String8 tag_indent = str8_prefix(indent, (tag_depth+1)*2); U64 tag_info_off = info_off; DW_Tag tag = {0}; info_off += dw_read_tag_cu(tag_temp.arena, input, &unit, tag_info_off, &tag); // rjf: log top-level tag info dumpf("%Stag: // compile_unit[%I64u].tag[%I64u]\n%S{\n", tag_indent, unit_idx, tag_idx, tag_indent); dumpf("%S kind: %S\n", tag_indent, dw_string_from_tag_kind(tag_temp.arena, tag.kind)); dumpf("%S info_off: 0x%I64x\n", tag_indent, tag_info_off); dumpf("%S abbrev_id: %I64u\n", tag_indent, tag.abbrev_id); // rjf: log attribs for(DW_AttribNode *attrib_n = tag.attribs.first; attrib_n != 0; attrib_n = attrib_n->next) { Temp attrib_temp = temp_begin(tag_temp.arena); DW_Attrib *attrib = &attrib_n->v; // rjf: log attrib begin dumpf("%S attrib: {"); // rjf: log basic info dumpf(" off: 0x%I64x", attrib->info_off); dumpf(", kind: %S", dw_string_from_attrib_kind(attrib_temp.arena, unit.version, unit.ext, attrib->attrib_kind)); dumpf(", form_kind: %S", dw_string_from_form_kind(attrib_temp.arena, unit.version, attrib->form_kind)); // rjf: log attrib's value based on vlass dumpf(", "); DW_AttribClass value_class = dw_value_class_from_attrib(&unit, attrib); switch(value_class) { default: {dumpf("`unknown value class`");}break; case DW_AttribClass_Undefined: {dumpf("`undefined value class`");}break; case DW_AttribClass_Address: {dumpf("0x%I64x", dw_address_from_attrib(input, &unit, attrib));}break; case DW_AttribClass_Const: {dumpf("0x%I64x", dw_const_u64_from_attrib(input, &unit, attrib));}break; case DW_AttribClass_Block: { String8 block = dw_block_from_attrib(input, &unit, attrib); String8List block_strs = numeric_str8_list_from_data(attrib_temp.arena, 16, block, 1); String8 block_str = str8_list_join(attrib_temp.arena, &block_strs, &(StringJoin){.sep = str8_lit(", ")}); dump(block_str); }break; case DW_AttribClass_ExprLoc: { String8 exprloc = dw_exprloc_from_attrib(input, &unit, attrib); String8 exprloc_str = dw_format_expression_single_line(attrib_temp.arena, exprloc, unit_range.min, unit.address_size, arch, unit.version, unit.ext, unit.format); dump(exprloc_str); }break; case DW_AttribClass_Flag: { B32 flag = dw_flag_from_attrib(input, &unit, attrib); dumpf("%llu: %s", flag, flag == 0 ? "false" : "true"); }break; case DW_AttribClass_LinePtr: case DW_AttribClass_LocListPtr: case DW_AttribClass_MacPtr: case DW_AttribClass_RngListPtr: case DW_AttribClass_RngList: case DW_AttribClass_StrOffsetsPtr: case DW_AttribClass_AddrPtr: { if(attrib->form_kind == DW_Form_SecOffset) { dumpf("0x%I64x", attrib->form.sec_offset); } else { dumpf("`unexpected form kind %S`", dw_string_from_form_kind(attrib_temp.arena, unit.version, attrib->form_kind)); } }break; case DW_AttribClass_Reference: { if(attrib->form_kind == DW_Form_Ref1 || attrib->form_kind == DW_Form_Ref2 || attrib->form_kind == DW_Form_Ref4 || attrib->form_kind == DW_Form_Ref8 || attrib->form_kind == DW_Form_RefUData) { U64 info_off = unit.info_range.min + attrib->form.ref; dumpf("0x%I64x", info_off); if(!contains_1u64(unit.info_range, attrib->form.ref)) { dumpf(": `(out of this unit's bounds)`"); } } else { dumpf("0x%I64x", attrib->form.ref); } }break; case DW_AttribClass_String: { if(attrib->form_kind == DW_Form_Strp) { dumpf("0x%I64x", attrib->form.sec_offset); } String8 string = dw_string_from_attrib(input, &unit, attrib); dumpf(": \"%S\"", string); }break; } // rjf: extend attrib's value with enum info switch(attrib->attrib_kind) { case DW_AttribKind_Language: { DW_Language lang = dw_const_u64_from_attrib(input, &unit, attrib); dumpf(": %S", dw_string_from_language(attrib_temp.arena, lang)); }break; case DW_AttribKind_DeclFile: { U64 file_idx = dw_const_u64_from_attrib(input, &unit, attrib); DW_LineFile *file = dw_file_from_attrib(&unit, &line_vm, attrib); if(file != 0) { dumpf(": %S", dw_path_from_file(attrib_temp.arena, &line_vm, file)); } }break; case DW_AttribKind_DeclLine: { dumpf(": %I64u", dw_const_u64_from_attrib(input, &unit, attrib)); }break; case DW_AttribKind_Inline: { DW_InlKind inl = dw_const_u64_from_attrib(input, &unit, attrib); dumpf(": %S", dw_string_from_inl(attrib_temp.arena, inl)); }break; case DW_AttribKind_Accessibility: { DW_AccessKind access = dw_const_u64_from_attrib(input, &unit, attrib); dumpf(": %S", dw_string_from_access_kind(attrib_temp.arena, access)); }break; case DW_AttribKind_CallingConvention: { DW_CallingConventionKind calling_convetion = dw_const_u64_from_attrib(input, &unit, attrib); dumpf(": %S", dw_string_from_calling_convetion(attrib_temp.arena, calling_convetion)); }break; case DW_AttribKind_Encoding: { DW_ATE encoding = dw_const_u64_from_attrib(input, &unit, attrib); dumpf(": %S", dw_string_from_attrib_type_encoding(attrib_temp.arena, encoding)); }break; } // rjf: log attrib end dumpf(" }\n"); temp_end(attrib_temp); } // rjf: log tag closes if(!tag.has_children || tag.abbrev_id == 0) { dumpf("%S}\n", tag_indent); } // rjf: indent/unindent if(tag.has_children) { tag_depth += 1; } if(tag.abbrev_id) { tag_depth -= 1; } temp_end(tag_temp); } temp_end(unit_temp); dumpf("} // compile_unit[/%u]\n\n", unit_idx); } } ////////////////////////////// //- rjf: dump .debug_abbrev // DumpSubset(DebugAbbrev) { Temp scratch = scratch_begin(&arena, 1); DW_Section abbrev = input->sec[DW_Section_Abbrev]; S64 depth = 0; U64 idx = 0; for(U64 cursor = 0; cursor < abbrev.data.size; idx += 1) { // rjf: read id & advance U64 id_off = cursor; U64 id = 0; cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &id); if(id == 0) { continue; } // rjf: unpack abbrev U64 tag = 0; U8 has_children = 0; cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &tag); cursor += str8_deserial_read_struct(abbrev.data, cursor, &has_children); // rjf: log abbrev Temp temp = temp_begin(scratch.arena); dumpf("abbrev: // abbrev[%I64u]\n{\n", idx); dumpf(" offset: 0x%I64x\n", id_off); dumpf(" id: %I64u\n", id); dumpf(" tag_kind: %S\n", dw_string_from_tag_kind(temp.arena, tag)); dumpf(" has_children: %s\n", has_children ? "true" : "false"); for(;;) { U64 attrib_off = cursor; U64 attrib_id = 0, form_id = 0; cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &attrib_id); cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &form_id); if(attrib_id == 0) { break; } String8 attrib_str = dw_string_from_attrib_kind(temp.arena, DW_Version_Last, DW_Ext_All, attrib_id); String8 form_str = dw_string_from_form_kind(temp.arena, DW_Version_Last, form_id); rd_printf(" attrib: { offset: 0x%I64x, kind: %S, form_kind: %S }\n", attrib_off, attrib_str, form_str); } dumpf("}\n"); temp_end(temp); } scratch_end(scratch); } ////////////////////////////// //- rjf: dump .debug_line // DumpSubset(DebugLine) { // dw_print_debug_line(arena, out, indent, input, lu_input, relaxed); } ////////////////////////////// //- rjf: dump .debug_str // DumpSubset(DebugStr) { // dw_print_debug_str(arena, out, indent, input); } ////////////////////////////// //- rjf: dump .debug_loc // DumpSubset(DebugLoc) { // dw_print_debug_loc(arena, out, indent, input, arch, image_type, relaxed); } ////////////////////////////// //- rjf: dump .debug_ranges // DumpSubset(DebugRanges) { // dw_print_debug_ranges(arena, out, indent, input, arch, image_type, relaxed); } ////////////////////////////// //- rjf: dump .debug_aranges // DumpSubset(DebugARanges) { // dw_print_debug_aranges(arena, out, indent, input); } ////////////////////////////// //- rjf: dump .debug_addr // DumpSubset(DebugAddr) { // dw_print_debug_addr(arena, out, indent, input); } ////////////////////////////// //- rjf: dump .debug_loclists // DumpSubset(DebugLocLists) { // dw_print_debug_loclists(arena, out, indent, input, segment_vranges, arch); } ////////////////////////////// //- rjf: dump .debug_rnglists // DumpSubset(DebugRngLists) { // dw_print_debug_rnglists(arena, out, indent, input, segment_vranges); } ////////////////////////////// //- rjf: dump .debug_pubnames // DumpSubset(DebugPubNames) { // dw_print_debug_pubnames(arena, out, indent, input); } ////////////////////////////// //- rjf: dump .debug_pubtypes // DumpSubset(DebugPubTypes) { // dw_print_debug_pubtypes(arena, out, indent, input); } ////////////////////////////// //- rjf: dump .debug_linestr // DumpSubset(DebugLineStr) { // dw_print_debug_line_str(arena, out, indent, input); } ////////////////////////////// //- rjf: dump .debug_stroffs // DumpSubset(DebugStrOffsets) { // dw_print_debug_str_offsets(arena, out, indent, input); } scratch_end(scratch); #undef DumpSubset #undef dumpf #undef dump return strings; }