forked from OSchip/llvm-project
Add dwarfdump support for DW_OP_regval_type.
Differential Revision: https://reviews.llvm.org/D73598
This commit is contained in:
Adrian Prantl
parent
4a4ce14eb2
commit
aa6ec19c5f
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@ -103,6 +103,8 @@ static DescVector getDescriptions() {
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Descriptions[DW_OP_convert] = Desc(Op::Dwarf5, Op::BaseTypeRef);
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Descriptions[DW_OP_convert] = Desc(Op::Dwarf5, Op::BaseTypeRef);
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Descriptions[DW_OP_entry_value] = Desc(Op::Dwarf5, Op::SizeLEB);
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Descriptions[DW_OP_entry_value] = Desc(Op::Dwarf5, Op::SizeLEB);
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Descriptions[DW_OP_regval_type] =
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Desc(Op::Dwarf5, Op::SizeLEB, Op::BaseTypeRef);
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return Descriptions;
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return Descriptions;
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}
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}
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@ -187,7 +189,21 @@ bool DWARFExpression::Operation::extract(DataExtractor Data,
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return true;
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return true;
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}
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}
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static bool prettyPrintRegisterOp(raw_ostream &OS, uint8_t Opcode,
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static void prettyPrintBaseTypeRef(DWARFUnit *U, raw_ostream &OS,
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uint64_t Operands[2], unsigned Operand) {
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assert(Operand < 2 && "operand out of bounds");
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auto Die = U->getDIEForOffset(U->getOffset() + Operands[Operand]);
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if (Die && Die.getTag() == dwarf::DW_TAG_base_type) {
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OS << format(" (0x%08" PRIx64 ")", U->getOffset() + Operands[Operand]);
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if (auto Name = Die.find(dwarf::DW_AT_name))
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OS << " \"" << Name->getAsCString() << "\"";
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} else {
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OS << format(" <invalid base_type ref: 0x%" PRIx64 ">",
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Operands[Operand]);
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}
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}
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static bool prettyPrintRegisterOp(DWARFUnit *U, raw_ostream &OS, uint8_t Opcode,
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uint64_t Operands[2],
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uint64_t Operands[2],
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const MCRegisterInfo *MRI, bool isEH) {
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const MCRegisterInfo *MRI, bool isEH) {
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if (!MRI)
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if (!MRI)
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@ -196,7 +212,8 @@ static bool prettyPrintRegisterOp(raw_ostream &OS, uint8_t Opcode,
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uint64_t DwarfRegNum;
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uint64_t DwarfRegNum;
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unsigned OpNum = 0;
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unsigned OpNum = 0;
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if (Opcode == DW_OP_bregx || Opcode == DW_OP_regx)
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if (Opcode == DW_OP_bregx || Opcode == DW_OP_regx ||
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Opcode == DW_OP_regval_type)
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DwarfRegNum = Operands[OpNum++];
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DwarfRegNum = Operands[OpNum++];
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else if (Opcode >= DW_OP_breg0 && Opcode < DW_OP_bregx)
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else if (Opcode >= DW_OP_breg0 && Opcode < DW_OP_bregx)
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DwarfRegNum = Opcode - DW_OP_breg0;
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DwarfRegNum = Opcode - DW_OP_breg0;
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@ -210,6 +227,9 @@ static bool prettyPrintRegisterOp(raw_ostream &OS, uint8_t Opcode,
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OS << format(" %s%+" PRId64, RegName, Operands[OpNum]);
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OS << format(" %s%+" PRId64, RegName, Operands[OpNum]);
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else
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else
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OS << ' ' << RegName;
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OS << ' ' << RegName;
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if (Opcode == DW_OP_regval_type)
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prettyPrintBaseTypeRef(U, OS, Operands, 1);
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return true;
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return true;
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}
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}
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}
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}
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@ -233,8 +253,9 @@ bool DWARFExpression::Operation::print(raw_ostream &OS,
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if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) ||
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if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) ||
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(Opcode >= DW_OP_reg0 && Opcode <= DW_OP_reg31) ||
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(Opcode >= DW_OP_reg0 && Opcode <= DW_OP_reg31) ||
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Opcode == DW_OP_bregx || Opcode == DW_OP_regx)
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Opcode == DW_OP_bregx || Opcode == DW_OP_regx ||
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if (prettyPrintRegisterOp(OS, Opcode, Operands, RegInfo, isEH))
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Opcode == DW_OP_regval_type)
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if (prettyPrintRegisterOp(U, OS, Opcode, Operands, RegInfo, isEH))
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return true;
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return true;
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for (unsigned Operand = 0; Operand < 2; ++Operand) {
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for (unsigned Operand = 0; Operand < 2; ++Operand) {
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@ -245,15 +266,7 @@ bool DWARFExpression::Operation::print(raw_ostream &OS,
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break;
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break;
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if (Size == Operation::BaseTypeRef && U) {
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if (Size == Operation::BaseTypeRef && U) {
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auto Die = U->getDIEForOffset(U->getOffset() + Operands[Operand]);
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prettyPrintBaseTypeRef(U, OS, Operands, Operand);
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if (Die && Die.getTag() == dwarf::DW_TAG_base_type) {
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OS << format(" (0x%08" PRIx64 ")", U->getOffset() + Operands[Operand]);
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if (auto Name = Die.find(dwarf::DW_AT_name))
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OS << " \"" << Name->getAsCString() << "\"";
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} else {
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OS << format(" <invalid base_type ref: 0x%" PRIx64 ">",
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Operands[Operand]);
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}
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} else if (Size == Operation::SizeBlock) {
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} else if (Size == Operation::SizeBlock) {
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uint64_t Offset = Operands[Operand];
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uint64_t Offset = Operands[Operand];
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for (unsigned i = 0; i < Operands[Operand - 1]; ++i)
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for (unsigned i = 0; i < Operands[Operand - 1]; ++i)
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@ -0,0 +1,185 @@
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# RUN: llvm-mc -dwarf-version=5 %s -filetype obj -triple x86_64-apple-darwin -o - \
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# RUN: | llvm-dwarfdump - | FileCheck %s
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# CHECK: DW_AT_location (DW_OP_regval_type RSI (0x0000003a) "int")
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.section __TEXT,__text,regular,pure_instructions
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.globl _f ## -- Begin function f
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.p2align 4, 0x90
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_f: ## @f
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Lfunc_begin0:
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.file 0 "/Volumes/Data/llvm-project" "/tmp/t.c" md5 0xe111397c9e6224481f168e197b7fac99
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.loc 0 1 0 ## /tmp/t.c:1:0
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.cfi_startproc
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## %bb.0:
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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Ltmp0:
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.loc 0 2 7 prologue_end ## /tmp/t.c:2:7
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movl $23, -4(%rbp)
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.loc 0 3 1 ## /tmp/t.c:3:1
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popq %rbp
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retq
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Ltmp1:
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Lfunc_end0:
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.cfi_endproc
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## -- End function
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.section __DWARF,__debug_str_offs,regular,debug
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Lsection_str_off:
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.long 28
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.short 5
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.short 0
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Lstr_offsets_base0:
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.section __DWARF,__debug_str,regular,debug
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Linfo_string:
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.asciz "clang " ## string offset=0
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.asciz "/tmp/t.c" ## string offset=48
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.asciz "/Volumes/Data/llvm-project" ## string offset=57
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.asciz "f" ## string offset=84
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.asciz "x" ## string offset=86
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.asciz "int" ## string offset=88
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.section __DWARF,__debug_str_offs,regular,debug
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.long 0
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.long 48
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.long 57
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.long 84
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.long 86
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.long 88
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.section __DWARF,__debug_abbrev,regular,debug
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Lsection_abbrev:
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.byte 1 ## Abbreviation Code
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.byte 17 ## DW_TAG_compile_unit
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.byte 1 ## DW_CHILDREN_yes
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.byte 37 ## DW_AT_producer
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.byte 37 ## DW_FORM_strx1
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.byte 19 ## DW_AT_language
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.byte 5 ## DW_FORM_data2
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.byte 3 ## DW_AT_name
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.byte 37 ## DW_FORM_strx1
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.byte 114 ## DW_AT_str_offsets_base
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.byte 23 ## DW_FORM_sec_offset
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.byte 16 ## DW_AT_stmt_list
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.byte 23 ## DW_FORM_sec_offset
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.byte 27 ## DW_AT_comp_dir
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.byte 37 ## DW_FORM_strx1
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.byte 17 ## DW_AT_low_pc
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.byte 27 ## DW_FORM_addrx
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.byte 18 ## DW_AT_high_pc
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.byte 6 ## DW_FORM_data4
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.byte 115 ## DW_AT_addr_base
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.byte 23 ## DW_FORM_sec_offset
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.byte 0 ## EOM(1)
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.byte 0 ## EOM(2)
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.byte 2 ## Abbreviation Code
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.byte 46 ## DW_TAG_subprogram
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.byte 1 ## DW_CHILDREN_yes
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.byte 17 ## DW_AT_low_pc
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.byte 27 ## DW_FORM_addrx
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.byte 18 ## DW_AT_high_pc
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.byte 6 ## DW_FORM_data4
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.byte 64 ## DW_AT_frame_base
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.byte 24 ## DW_FORM_exprloc
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.byte 3 ## DW_AT_name
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.byte 37 ## DW_FORM_strx1
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.byte 58 ## DW_AT_decl_file
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.byte 11 ## DW_FORM_data1
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.byte 59 ## DW_AT_decl_line
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.byte 11 ## DW_FORM_data1
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.byte 63 ## DW_AT_external
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.byte 25 ## DW_FORM_flag_present
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.byte 0 ## EOM(1)
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.byte 0 ## EOM(2)
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.byte 3 ## Abbreviation Code
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.byte 52 ## DW_TAG_variable
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.byte 0 ## DW_CHILDREN_no
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.byte 2 ## DW_AT_location
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.byte 24 ## DW_FORM_exprloc
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.byte 3 ## DW_AT_name
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.byte 37 ## DW_FORM_strx1
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.byte 58 ## DW_AT_decl_file
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.byte 11 ## DW_FORM_data1
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.byte 73 ## DW_AT_type
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.byte 19 ## DW_FORM_ref4
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.byte 0 ## EOM(1)
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.byte 0 ## EOM(2)
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.byte 4 ## Abbreviation Code
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.byte 36 ## DW_TAG_base_type
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.byte 0 ## DW_CHILDREN_no
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.byte 3 ## DW_AT_name
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.byte 37 ## DW_FORM_strx1
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.byte 62 ## DW_AT_encoding
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.byte 11 ## DW_FORM_data1
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.byte 11 ## DW_AT_byte_size
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.byte 11 ## DW_FORM_data1
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.byte 0 ## EOM(1)
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.byte 0 ## EOM(2)
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.byte 0 ## EOM(3)
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.section __DWARF,__debug_info,regular,debug
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Lsection_info:
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Lcu_begin0:
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.set Lset0, Ldebug_info_end0-Ldebug_info_start0 ## Length of Unit
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.long Lset0
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Ldebug_info_start0:
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.short 5 ## DWARF version number
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.byte 1 ## DWARF Unit Type
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.byte 8 ## Address Size (in bytes)
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.set Lset1, Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
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.long Lset1
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.byte 1 ## Abbrev [1] 0xc:0x33 DW_TAG_compile_unit
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.byte 0 ## DW_AT_producer
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.short 12 ## DW_AT_language
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.byte 1 ## DW_AT_name
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.set Lset2, Lstr_offsets_base0-Lsection_str_off ## DW_AT_str_offsets_base
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.long Lset2
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.set Lset3, Lline_table_start0-Lsection_line ## DW_AT_stmt_list
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.long Lset3
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.byte 2 ## DW_AT_comp_dir
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.byte 0 ## DW_AT_low_pc
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.set Lset4, Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc
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.long Lset4
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.set Lset5, Laddr_table_base0-Lsection_info0 ## DW_AT_addr_base
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.long Lset5
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.byte 2 ## Abbrev [2] 0x23:0x17 DW_TAG_subprogram
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.byte 0 ## DW_AT_low_pc
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.set Lset6, Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc
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.long Lset6
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.byte 1 ## DW_AT_frame_base
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.byte 86
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.byte 3 ## DW_AT_name
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.byte 0 ## DW_AT_decl_file
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.byte 1 ## DW_AT_decl_line
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## DW_AT_external
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.byte 3 ## Abbrev [3] 0x2e:0xb DW_TAG_variable
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.byte 3 ## DW_AT_location
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.byte 0xa5
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.byte 0x04
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.byte 0x3a
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.byte 4 ## DW_AT_name
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.byte 0 ## DW_AT_decl_file
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.long 58 ## DW_AT_type
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.byte 0 ## End Of Children Mark
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.byte 4 ## Abbrev [4] 0x3a:0x4 DW_TAG_base_type
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.byte 5 ## DW_AT_name
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.byte 5 ## DW_AT_encoding
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.byte 4 ## DW_AT_byte_size
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.byte 0 ## End Of Children Mark
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Ldebug_info_end0:
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.section __DWARF,__debug_addr,regular,debug
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Lsection_info0:
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.set Lset7, Ldebug_addr_end0-Ldebug_addr_start0 ## Length of contribution
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.long Lset7
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Ldebug_addr_start0:
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.short 5 ## DWARF version number
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.byte 8 ## Address size
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.byte 0 ## Segment selector size
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Laddr_table_base0:
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.quad Lfunc_begin0
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Ldebug_addr_end0:
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.subsections_via_symbols
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.section __DWARF,__debug_line,regular,debug
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Lsection_line:
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Lline_table_start0:
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