class DWARFDebugLine {
public:
- DWARFDebugLine(const RelocAddrMap* LineInfoRelocMap) : RelocMap(LineInfoRelocMap) {}
+ DWARFDebugLine(const RelocAddrMap *LineInfoRelocMap)
+ : RelocMap(LineInfoRelocMap) {}
struct FileNameEntry {
FileNameEntry() = default;
struct Prologue {
Prologue();
- // The size in bytes of the statement information for this compilation unit
- // (not including the total_length field itself).
+ /// The size in bytes of the statement information for this compilation unit
+ /// (not including the total_length field itself).
uint64_t TotalLength;
- // Version identifier for the statement information format.
+ /// Version identifier for the statement information format.
uint16_t Version;
- // The number of bytes following the prologue_length field to the beginning
- // of the first byte of the statement program itself.
+ /// The number of bytes following the prologue_length field to the beginning
+ /// of the first byte of the statement program itself.
uint64_t PrologueLength;
- // The size in bytes of the smallest target machine instruction. Statement
- // program opcodes that alter the address register first multiply their
- // operands by this value.
+ /// The size in bytes of the smallest target machine instruction. Statement
+ /// program opcodes that alter the address register first multiply their
+ /// operands by this value.
uint8_t MinInstLength;
- // The maximum number of individual operations that may be encoded in an
- // instruction.
+ /// The maximum number of individual operations that may be encoded in an
+ /// instruction.
uint8_t MaxOpsPerInst;
- // The initial value of theis_stmtregister.
+ /// The initial value of theis_stmtregister.
uint8_t DefaultIsStmt;
- // This parameter affects the meaning of the special opcodes. See below.
+ /// This parameter affects the meaning of the special opcodes. See below.
int8_t LineBase;
- // This parameter affects the meaning of the special opcodes. See below.
+ /// This parameter affects the meaning of the special opcodes. See below.
uint8_t LineRange;
- // The number assigned to the first special opcode.
+ /// The number assigned to the first special opcode.
uint8_t OpcodeBase;
std::vector<uint8_t> StandardOpcodeLengths;
- std::vector<const char*> IncludeDirectories;
+ std::vector<const char *> IncludeDirectories;
std::vector<FileNameEntry> FileNames;
bool IsDWARF64;
- uint32_t sizeofTotalLength() const {
- return IsDWARF64 ? 12 : 4;
- }
+ uint32_t sizeofTotalLength() const { return IsDWARF64 ? 12 : 4; }
- uint32_t sizeofPrologueLength() const {
- return IsDWARF64 ? 8 : 4;
- }
+ uint32_t sizeofPrologueLength() const { return IsDWARF64 ? 8 : 4; }
- // Length of the prologue in bytes.
+ /// Length of the prologue in bytes.
uint32_t getLength() const {
return PrologueLength + sizeofTotalLength() + sizeof(Version) +
sizeofPrologueLength();
}
- // Length of the line table data in bytes (not including the prologue).
+ /// Length of the line table data in bytes (not including the prologue).
uint32_t getStatementTableLength() const {
return TotalLength + sizeofTotalLength() - getLength();
}
void clear();
void dump(raw_ostream &OS) const;
- bool parse(DataExtractor debug_line_data, uint32_t *offset_ptr);
+ bool parse(DataExtractor DebugLineData, uint32_t *OffsetPtr);
};
- // Standard .debug_line state machine structure.
+ /// Standard .debug_line state machine structure.
struct Row {
- explicit Row(bool default_is_stmt = false);
+ explicit Row(bool DefaultIsStmt = false);
/// Called after a row is appended to the matrix.
void postAppend();
- void reset(bool default_is_stmt);
+ void reset(bool DefaultIsStmt);
void dump(raw_ostream &OS) const;
- static bool orderByAddress(const Row& LHS, const Row& RHS) {
+ static bool orderByAddress(const Row &LHS, const Row &RHS) {
return LHS.Address < RHS.Address;
}
- // The program-counter value corresponding to a machine instruction
- // generated by the compiler.
+ /// The program-counter value corresponding to a machine instruction
+ /// generated by the compiler.
uint64_t Address;
- // An unsigned integer indicating a source line number. Lines are numbered
- // beginning at 1. The compiler may emit the value 0 in cases where an
- // instruction cannot be attributed to any source line.
+ /// An unsigned integer indicating a source line number. Lines are numbered
+ /// beginning at 1. The compiler may emit the value 0 in cases where an
+ /// instruction cannot be attributed to any source line.
uint32_t Line;
- // An unsigned integer indicating a column number within a source line.
- // Columns are numbered beginning at 1. The value 0 is reserved to indicate
- // that a statement begins at the 'left edge' of the line.
+ /// An unsigned integer indicating a column number within a source line.
+ /// Columns are numbered beginning at 1. The value 0 is reserved to indicate
+ /// that a statement begins at the 'left edge' of the line.
uint16_t Column;
- // An unsigned integer indicating the identity of the source file
- // corresponding to a machine instruction.
+ /// An unsigned integer indicating the identity of the source file
+ /// corresponding to a machine instruction.
uint16_t File;
- // An unsigned integer representing the DWARF path discriminator value
- // for this location.
+ /// An unsigned integer representing the DWARF path discriminator value
+ /// for this location.
uint32_t Discriminator;
- // An unsigned integer whose value encodes the applicable instruction set
- // architecture for the current instruction.
+ /// An unsigned integer whose value encodes the applicable instruction set
+ /// architecture for the current instruction.
uint8_t Isa;
- // A boolean indicating that the current instruction is the beginning of a
- // statement.
- uint8_t IsStmt:1,
- // A boolean indicating that the current instruction is the
- // beginning of a basic block.
- BasicBlock:1,
- // A boolean indicating that the current address is that of the
- // first byte after the end of a sequence of target machine
- // instructions.
- EndSequence:1,
- // A boolean indicating that the current address is one (of possibly
- // many) where execution should be suspended for an entry breakpoint
- // of a function.
- PrologueEnd:1,
- // A boolean indicating that the current address is one (of possibly
- // many) where execution should be suspended for an exit breakpoint
- // of a function.
- EpilogueBegin:1;
+ /// A boolean indicating that the current instruction is the beginning of a
+ /// statement.
+ uint8_t IsStmt : 1,
+ /// A boolean indicating that the current instruction is the
+ /// beginning of a basic block.
+ BasicBlock : 1,
+ /// A boolean indicating that the current address is that of the
+ /// first byte after the end of a sequence of target machine
+ /// instructions.
+ EndSequence : 1,
+ /// A boolean indicating that the current address is one (of possibly
+ /// many) where execution should be suspended for an entry breakpoint
+ /// of a function.
+ PrologueEnd : 1,
+ /// A boolean indicating that the current address is one (of possibly
+ /// many) where execution should be suspended for an exit breakpoint
+ /// of a function.
+ EpilogueBegin : 1;
};
- // Represents a series of contiguous machine instructions. Line table for each
- // compilation unit may consist of multiple sequences, which are not
- // guaranteed to be in the order of ascending instruction address.
+ /// Represents a series of contiguous machine instructions. Line table for
+ /// each compilation unit may consist of multiple sequences, which are not
+ /// guaranteed to be in the order of ascending instruction address.
struct Sequence {
Sequence();
- // Sequence describes instructions at address range [LowPC, HighPC)
- // and is described by line table rows [FirstRowIndex, LastRowIndex).
+ /// Sequence describes instructions at address range [LowPC, HighPC)
+ /// and is described by line table rows [FirstRowIndex, LastRowIndex).
uint64_t LowPC;
uint64_t HighPC;
unsigned FirstRowIndex;
void reset();
- static bool orderByLowPC(const Sequence& LHS, const Sequence& RHS) {
+ static bool orderByLowPC(const Sequence &LHS, const Sequence &RHS) {
return LHS.LowPC < RHS.LowPC;
}
return !Empty && (LowPC < HighPC) && (FirstRowIndex < LastRowIndex);
}
- bool containsPC(uint64_t pc) const {
- return (LowPC <= pc && pc < HighPC);
- }
+ bool containsPC(uint64_t PC) const { return (LowPC <= PC && PC < HighPC); }
};
struct LineTable {
LineTable();
- // Represents an invalid row
+ /// Represents an invalid row
const uint32_t UnknownRowIndex = UINT32_MAX;
- void appendRow(const DWARFDebugLine::Row &R) {
- Rows.push_back(R);
- }
+ void appendRow(const DWARFDebugLine::Row &R) { Rows.push_back(R); }
void appendSequence(const DWARFDebugLine::Sequence &S) {
Sequences.push_back(S);
}
- // Returns the index of the row with file/line info for a given address,
- // or UnknownRowIndex if there is no such row.
- uint32_t lookupAddress(uint64_t address) const;
+ /// Returns the index of the row with file/line info for a given address,
+ /// or UnknownRowIndex if there is no such row.
+ uint32_t lookupAddress(uint64_t Address) const;
- bool lookupAddressRange(uint64_t address, uint64_t size,
- std::vector<uint32_t> &result) const;
+ bool lookupAddressRange(uint64_t Address, uint64_t Size,
+ std::vector<uint32_t> &Result) const;
bool hasFileAtIndex(uint64_t FileIndex) const;
- // Extracts filename by its index in filename table in prologue.
- // Returns true on success.
+ /// Extracts filename by its index in filename table in prologue.
+ /// Returns true on success.
bool getFileNameByIndex(uint64_t FileIndex, const char *CompDir,
DILineInfoSpecifier::FileLineInfoKind Kind,
std::string &Result) const;
- // Fills the Result argument with the file and line information
- // corresponding to Address. Returns true on success.
+ /// Fills the Result argument with the file and line information
+ /// corresponding to Address. Returns true on success.
bool getFileLineInfoForAddress(uint64_t Address, const char *CompDir,
DILineInfoSpecifier::FileLineInfoKind Kind,
DILineInfo &Result) const;
void clear();
/// Parse prologue and all rows.
- bool parse(DataExtractor debug_line_data, const RelocAddrMap *RMap,
- uint32_t *offset_ptr);
+ bool parse(DataExtractor DebugLineData, const RelocAddrMap *RMap,
+ uint32_t *OffsetPtr);
struct Prologue Prologue;
typedef std::vector<Row> RowVector;
SequenceVector Sequences;
private:
- uint32_t findRowInSeq(const DWARFDebugLine::Sequence &seq,
- uint64_t address) const;
+ uint32_t findRowInSeq(const DWARFDebugLine::Sequence &Seq,
+ uint64_t Address) const;
};
- const LineTable *getLineTable(uint32_t offset) const;
- const LineTable *getOrParseLineTable(DataExtractor debug_line_data,
- uint32_t offset);
+ const LineTable *getLineTable(uint32_t Offset) const;
+ const LineTable *getOrParseLineTable(DataExtractor DebugLineData,
+ uint32_t Offset);
private:
struct ParsingState {
ParsingState(struct LineTable *LT);
void resetRowAndSequence();
- void appendRowToMatrix(uint32_t offset);
+ void appendRowToMatrix(uint32_t Offset);
- // Line table we're currently parsing.
+ /// Line table we're currently parsing.
struct LineTable *LineTable;
- // The row number that starts at zero for the prologue, and increases for
- // each row added to the matrix.
+ /// The row number that starts at zero for the prologue, and increases for
+ /// each row added to the matrix.
unsigned RowNumber;
struct Row Row;
struct Sequence Sequence;
//
//===----------------------------------------------------------------------===//
+#include "llvm/DebugInfo/DWARF/DWARFDebugLine.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
-#include "llvm/DebugInfo/DWARF/DWARFDebugLine.h"
#include "llvm/DebugInfo/DWARF/DWARFRelocMap.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Format.h"
<< format(" line_range: %u\n", LineRange)
<< format(" opcode_base: %u\n", OpcodeBase);
- for (uint32_t i = 0; i < StandardOpcodeLengths.size(); ++i)
+ for (uint32_t I = 0; I != StandardOpcodeLengths.size(); ++I)
OS << format("standard_opcode_lengths[%s] = %u\n",
- LNStandardString(i + 1).data(), StandardOpcodeLengths[i]);
+ LNStandardString(I + 1).data(), StandardOpcodeLengths[I]);
if (!IncludeDirectories.empty())
- for (uint32_t i = 0; i < IncludeDirectories.size(); ++i)
- OS << format("include_directories[%3u] = '", i + 1)
- << IncludeDirectories[i] << "'\n";
+ for (uint32_t I = 0; I != IncludeDirectories.size(); ++I)
+ OS << format("include_directories[%3u] = '", I + 1)
+ << IncludeDirectories[I] << "'\n";
if (!FileNames.empty()) {
OS << " Dir Mod Time File Len File Name\n"
<< " ---- ---------- ---------- -----------"
"----------------\n";
- for (uint32_t i = 0; i < FileNames.size(); ++i) {
- const FileNameEntry &fileEntry = FileNames[i];
- OS << format("file_names[%3u] %4" PRIu64 " ", i + 1, fileEntry.DirIdx)
- << format("0x%8.8" PRIx64 " 0x%8.8" PRIx64 " ", fileEntry.ModTime,
- fileEntry.Length)
- << fileEntry.Name << '\n';
+ for (uint32_t I = 0; I != FileNames.size(); ++I) {
+ const FileNameEntry &FileEntry = FileNames[I];
+ OS << format("file_names[%3u] %4" PRIu64 " ", I + 1, FileEntry.DirIdx)
+ << format("0x%8.8" PRIx64 " 0x%8.8" PRIx64 " ", FileEntry.ModTime,
+ FileEntry.Length)
+ << FileEntry.Name << '\n';
}
}
}
-bool DWARFDebugLine::Prologue::parse(DataExtractor debug_line_data,
- uint32_t *offset_ptr) {
- const uint64_t prologue_offset = *offset_ptr;
+bool DWARFDebugLine::Prologue::parse(DataExtractor DebugLineData,
+ uint32_t *OffsetPtr) {
+ const uint64_t PrologueOffset = *OffsetPtr;
clear();
- TotalLength = debug_line_data.getU32(offset_ptr);
+ TotalLength = DebugLineData.getU32(OffsetPtr);
if (TotalLength == UINT32_MAX) {
IsDWARF64 = true;
- TotalLength = debug_line_data.getU64(offset_ptr);
+ TotalLength = DebugLineData.getU64(OffsetPtr);
} else if (TotalLength > 0xffffff00) {
return false;
}
- Version = debug_line_data.getU16(offset_ptr);
+ Version = DebugLineData.getU16(OffsetPtr);
if (Version < 2)
return false;
- PrologueLength =
- debug_line_data.getUnsigned(offset_ptr, sizeofPrologueLength());
- const uint64_t end_prologue_offset = PrologueLength + *offset_ptr;
- MinInstLength = debug_line_data.getU8(offset_ptr);
+ PrologueLength = DebugLineData.getUnsigned(OffsetPtr, sizeofPrologueLength());
+ const uint64_t EndPrologueOffset = PrologueLength + *OffsetPtr;
+ MinInstLength = DebugLineData.getU8(OffsetPtr);
if (Version >= 4)
- MaxOpsPerInst = debug_line_data.getU8(offset_ptr);
- DefaultIsStmt = debug_line_data.getU8(offset_ptr);
- LineBase = debug_line_data.getU8(offset_ptr);
- LineRange = debug_line_data.getU8(offset_ptr);
- OpcodeBase = debug_line_data.getU8(offset_ptr);
+ MaxOpsPerInst = DebugLineData.getU8(OffsetPtr);
+ DefaultIsStmt = DebugLineData.getU8(OffsetPtr);
+ LineBase = DebugLineData.getU8(OffsetPtr);
+ LineRange = DebugLineData.getU8(OffsetPtr);
+ OpcodeBase = DebugLineData.getU8(OffsetPtr);
StandardOpcodeLengths.reserve(OpcodeBase - 1);
- for (uint32_t i = 1; i < OpcodeBase; ++i) {
- uint8_t op_len = debug_line_data.getU8(offset_ptr);
- StandardOpcodeLengths.push_back(op_len);
+ for (uint32_t I = 1; I < OpcodeBase; ++I) {
+ uint8_t OpLen = DebugLineData.getU8(OffsetPtr);
+ StandardOpcodeLengths.push_back(OpLen);
}
- while (*offset_ptr < end_prologue_offset) {
- const char *s = debug_line_data.getCStr(offset_ptr);
- if (s && s[0])
- IncludeDirectories.push_back(s);
+ while (*OffsetPtr < EndPrologueOffset) {
+ const char *S = DebugLineData.getCStr(OffsetPtr);
+ if (S && S[0])
+ IncludeDirectories.push_back(S);
else
break;
}
- while (*offset_ptr < end_prologue_offset) {
- const char *name = debug_line_data.getCStr(offset_ptr);
- if (name && name[0]) {
- FileNameEntry fileEntry;
- fileEntry.Name = name;
- fileEntry.DirIdx = debug_line_data.getULEB128(offset_ptr);
- fileEntry.ModTime = debug_line_data.getULEB128(offset_ptr);
- fileEntry.Length = debug_line_data.getULEB128(offset_ptr);
- FileNames.push_back(fileEntry);
+ while (*OffsetPtr < EndPrologueOffset) {
+ const char *Name = DebugLineData.getCStr(OffsetPtr);
+ if (Name && Name[0]) {
+ FileNameEntry FileEntry;
+ FileEntry.Name = Name;
+ FileEntry.DirIdx = DebugLineData.getULEB128(OffsetPtr);
+ FileEntry.ModTime = DebugLineData.getULEB128(OffsetPtr);
+ FileEntry.Length = DebugLineData.getULEB128(OffsetPtr);
+ FileNames.push_back(FileEntry);
} else {
break;
}
}
- if (*offset_ptr != end_prologue_offset) {
- fprintf(stderr, "warning: parsing line table prologue at 0x%8.8" PRIx64
- " should have ended at 0x%8.8" PRIx64
- " but it ended at 0x%8.8" PRIx64 "\n",
- prologue_offset, end_prologue_offset, (uint64_t)*offset_ptr);
+ if (*OffsetPtr != EndPrologueOffset) {
+ fprintf(stderr,
+ "warning: parsing line table prologue at 0x%8.8" PRIx64
+ " should have ended at 0x%8.8" PRIx64
+ " but it ended at 0x%8.8" PRIx64 "\n",
+ PrologueOffset, EndPrologueOffset, (uint64_t)*OffsetPtr);
return false;
}
return true;
}
-DWARFDebugLine::Row::Row(bool default_is_stmt) { reset(default_is_stmt); }
+DWARFDebugLine::Row::Row(bool DefaultIsStmt) { reset(DefaultIsStmt); }
void DWARFDebugLine::Row::postAppend() {
BasicBlock = false;
EpilogueBegin = false;
}
-void DWARFDebugLine::Row::reset(bool default_is_stmt) {
+void DWARFDebugLine::Row::reset(bool DefaultIsStmt) {
Address = 0;
Line = 1;
Column = 0;
File = 1;
Isa = 0;
Discriminator = 0;
- IsStmt = default_is_stmt;
+ IsStmt = DefaultIsStmt;
BasicBlock = false;
EndSequence = false;
PrologueEnd = false;
Sequence.reset();
}
-void DWARFDebugLine::ParsingState::appendRowToMatrix(uint32_t offset) {
+void DWARFDebugLine::ParsingState::appendRowToMatrix(uint32_t Offset) {
if (Sequence.Empty) {
// Record the beginning of instruction sequence.
Sequence.Empty = false;
}
const DWARFDebugLine::LineTable *
-DWARFDebugLine::getLineTable(uint32_t offset) const {
- LineTableConstIter pos = LineTableMap.find(offset);
- if (pos != LineTableMap.end())
- return &pos->second;
+DWARFDebugLine::getLineTable(uint32_t Offset) const {
+ LineTableConstIter Pos = LineTableMap.find(Offset);
+ if (Pos != LineTableMap.end())
+ return &Pos->second;
return nullptr;
}
const DWARFDebugLine::LineTable *
-DWARFDebugLine::getOrParseLineTable(DataExtractor debug_line_data,
- uint32_t offset) {
- std::pair<LineTableIter, bool> pos =
- LineTableMap.insert(LineTableMapTy::value_type(offset, LineTable()));
- LineTable *LT = &pos.first->second;
- if (pos.second) {
- if (!LT->parse(debug_line_data, RelocMap, &offset))
+DWARFDebugLine::getOrParseLineTable(DataExtractor DebugLineData,
+ uint32_t Offset) {
+ std::pair<LineTableIter, bool> Pos =
+ LineTableMap.insert(LineTableMapTy::value_type(Offset, LineTable()));
+ LineTable *LT = &Pos.first->second;
+ if (Pos.second) {
+ if (!LT->parse(DebugLineData, RelocMap, &Offset))
return nullptr;
}
return LT;
}
-bool DWARFDebugLine::LineTable::parse(DataExtractor debug_line_data,
+bool DWARFDebugLine::LineTable::parse(DataExtractor DebugLineData,
const RelocAddrMap *RMap,
- uint32_t *offset_ptr) {
- const uint32_t debug_line_offset = *offset_ptr;
+ uint32_t *OffsetPtr) {
+ const uint32_t DebugLineOffset = *OffsetPtr;
clear();
- if (!Prologue.parse(debug_line_data, offset_ptr)) {
+ if (!Prologue.parse(DebugLineData, OffsetPtr)) {
// Restore our offset and return false to indicate failure!
- *offset_ptr = debug_line_offset;
+ *OffsetPtr = DebugLineOffset;
return false;
}
- const uint32_t end_offset =
- debug_line_offset + Prologue.TotalLength + Prologue.sizeofTotalLength();
+ const uint32_t EndOffset =
+ DebugLineOffset + Prologue.TotalLength + Prologue.sizeofTotalLength();
ParsingState State(this);
- while (*offset_ptr < end_offset) {
- uint8_t opcode = debug_line_data.getU8(offset_ptr);
+ while (*OffsetPtr < EndOffset) {
+ uint8_t Opcode = DebugLineData.getU8(OffsetPtr);
- if (opcode == 0) {
+ if (Opcode == 0) {
// Extended Opcodes always start with a zero opcode followed by
// a uleb128 length so you can skip ones you don't know about
- uint32_t ext_offset = *offset_ptr;
- uint64_t len = debug_line_data.getULEB128(offset_ptr);
- uint32_t arg_size = len - (*offset_ptr - ext_offset);
+ uint32_t ExtOffset = *OffsetPtr;
+ uint64_t Len = DebugLineData.getULEB128(OffsetPtr);
+ uint32_t ArgSize = Len - (*OffsetPtr - ExtOffset);
- uint8_t sub_opcode = debug_line_data.getU8(offset_ptr);
- switch (sub_opcode) {
+ uint8_t SubOpcode = DebugLineData.getU8(OffsetPtr);
+ switch (SubOpcode) {
case DW_LNE_end_sequence:
// Set the end_sequence register of the state machine to true and
// append a row to the matrix using the current values of the
// address is that of the byte after the last target machine instruction
// of the sequence.
State.Row.EndSequence = true;
- State.appendRowToMatrix(*offset_ptr);
+ State.appendRowToMatrix(*OffsetPtr);
State.resetRowAndSequence();
break;
// relocatable address. All of the other statement program opcodes
// that affect the address register add a delta to it. This instruction
// stores a relocatable value into it instead.
- State.Row.Address =
- getRelocatedValue(debug_line_data, debug_line_data.getAddressSize(),
- offset_ptr, RMap);
+ State.Row.Address = getRelocatedValue(
+ DebugLineData, DebugLineData.getAddressSize(), OffsetPtr, RMap);
break;
case DW_LNE_define_file:
// the DW_LNE_define_file instruction. These numbers are used in the
// the file register of the state machine.
{
- FileNameEntry fileEntry;
- fileEntry.Name = debug_line_data.getCStr(offset_ptr);
- fileEntry.DirIdx = debug_line_data.getULEB128(offset_ptr);
- fileEntry.ModTime = debug_line_data.getULEB128(offset_ptr);
- fileEntry.Length = debug_line_data.getULEB128(offset_ptr);
- Prologue.FileNames.push_back(fileEntry);
+ FileNameEntry FileEntry;
+ FileEntry.Name = DebugLineData.getCStr(OffsetPtr);
+ FileEntry.DirIdx = DebugLineData.getULEB128(OffsetPtr);
+ FileEntry.ModTime = DebugLineData.getULEB128(OffsetPtr);
+ FileEntry.Length = DebugLineData.getULEB128(OffsetPtr);
+ Prologue.FileNames.push_back(FileEntry);
}
break;
case DW_LNE_set_discriminator:
- State.Row.Discriminator = debug_line_data.getULEB128(offset_ptr);
+ State.Row.Discriminator = DebugLineData.getULEB128(OffsetPtr);
break;
default:
// Length doesn't include the zero opcode byte or the length itself, but
// it does include the sub_opcode, so we have to adjust for that below
- (*offset_ptr) += arg_size;
+ (*OffsetPtr) += ArgSize;
break;
}
- } else if (opcode < Prologue.OpcodeBase) {
- switch (opcode) {
+ } else if (Opcode < Prologue.OpcodeBase) {
+ switch (Opcode) {
// Standard Opcodes
case DW_LNS_copy:
// Takes no arguments. Append a row to the matrix using the
// current values of the state-machine registers. Then set
// the basic_block register to false.
- State.appendRowToMatrix(*offset_ptr);
+ State.appendRowToMatrix(*OffsetPtr);
break;
case DW_LNS_advance_pc:
// min_inst_length field of the prologue, and adds the
// result to the address register of the state machine.
State.Row.Address +=
- debug_line_data.getULEB128(offset_ptr) * Prologue.MinInstLength;
+ DebugLineData.getULEB128(OffsetPtr) * Prologue.MinInstLength;
break;
case DW_LNS_advance_line:
// Takes a single signed LEB128 operand and adds that value to
// the line register of the state machine.
- State.Row.Line += debug_line_data.getSLEB128(offset_ptr);
+ State.Row.Line += DebugLineData.getSLEB128(OffsetPtr);
break;
case DW_LNS_set_file:
// Takes a single unsigned LEB128 operand and stores it in the file
// register of the state machine.
- State.Row.File = debug_line_data.getULEB128(offset_ptr);
+ State.Row.File = DebugLineData.getULEB128(OffsetPtr);
break;
case DW_LNS_set_column:
// Takes a single unsigned LEB128 operand and stores it in the
// column register of the state machine.
- State.Row.Column = debug_line_data.getULEB128(offset_ptr);
+ State.Row.Column = DebugLineData.getULEB128(OffsetPtr);
break;
case DW_LNS_negate_stmt:
// than twice that range will it need to use both DW_LNS_advance_pc
// and a special opcode, requiring three or more bytes.
{
- uint8_t adjust_opcode = 255 - Prologue.OpcodeBase;
- uint64_t addr_offset =
- (adjust_opcode / Prologue.LineRange) * Prologue.MinInstLength;
- State.Row.Address += addr_offset;
+ uint8_t AdjustOpcode = 255 - Prologue.OpcodeBase;
+ uint64_t AddrOffset =
+ (AdjustOpcode / Prologue.LineRange) * Prologue.MinInstLength;
+ State.Row.Address += AddrOffset;
}
break;
// judge when the computation of a special opcode overflows and
// requires the use of DW_LNS_advance_pc. Such assemblers, however,
// can use DW_LNS_fixed_advance_pc instead, sacrificing compression.
- State.Row.Address += debug_line_data.getU16(offset_ptr);
+ State.Row.Address += DebugLineData.getU16(OffsetPtr);
break;
case DW_LNS_set_prologue_end:
case DW_LNS_set_isa:
// Takes a single unsigned LEB128 operand and stores it in the
// column register of the state machine.
- State.Row.Isa = debug_line_data.getULEB128(offset_ptr);
+ State.Row.Isa = DebugLineData.getULEB128(OffsetPtr);
break;
default:
// of such opcodes because they are specified in the prologue
// as a multiple of LEB128 operands for each opcode.
{
- assert(opcode - 1U < Prologue.StandardOpcodeLengths.size());
- uint8_t opcode_length = Prologue.StandardOpcodeLengths[opcode - 1];
- for (uint8_t i = 0; i < opcode_length; ++i)
- debug_line_data.getULEB128(offset_ptr);
+ assert(Opcode - 1U < Prologue.StandardOpcodeLengths.size());
+ uint8_t OpcodeLength = Prologue.StandardOpcodeLengths[Opcode - 1];
+ for (uint8_t I = 0; I < OpcodeLength; ++I)
+ DebugLineData.getULEB128(OffsetPtr);
}
break;
}
//
// line increment = line_base + (adjusted opcode % line_range)
- uint8_t adjust_opcode = opcode - Prologue.OpcodeBase;
- uint64_t addr_offset =
- (adjust_opcode / Prologue.LineRange) * Prologue.MinInstLength;
- int32_t line_offset =
- Prologue.LineBase + (adjust_opcode % Prologue.LineRange);
- State.Row.Line += line_offset;
- State.Row.Address += addr_offset;
- State.appendRowToMatrix(*offset_ptr);
+ uint8_t AdjustOpcode = Opcode - Prologue.OpcodeBase;
+ uint64_t AddrOffset =
+ (AdjustOpcode / Prologue.LineRange) * Prologue.MinInstLength;
+ int32_t LineOffset =
+ Prologue.LineBase + (AdjustOpcode % Prologue.LineRange);
+ State.Row.Line += LineOffset;
+ State.Row.Address += AddrOffset;
+ State.appendRowToMatrix(*OffsetPtr);
// Reset discriminator to 0.
State.Row.Discriminator = 0;
}
// rudimentary sequences for address ranges [0x0, 0xsomething).
}
- return end_offset;
+ return EndOffset;
}
uint32_t
-DWARFDebugLine::LineTable::findRowInSeq(const DWARFDebugLine::Sequence &seq,
- uint64_t address) const {
- if (!seq.containsPC(address))
+DWARFDebugLine::LineTable::findRowInSeq(const DWARFDebugLine::Sequence &Seq,
+ uint64_t Address) const {
+ if (!Seq.containsPC(Address))
return UnknownRowIndex;
// Search for instruction address in the rows describing the sequence.
// Rows are stored in a vector, so we may use arithmetical operations with
// iterators.
- DWARFDebugLine::Row row;
- row.Address = address;
- RowIter first_row = Rows.begin() + seq.FirstRowIndex;
- RowIter last_row = Rows.begin() + seq.LastRowIndex;
- LineTable::RowIter row_pos = std::lower_bound(
- first_row, last_row, row, DWARFDebugLine::Row::orderByAddress);
- if (row_pos == last_row) {
- return seq.LastRowIndex - 1;
+ DWARFDebugLine::Row Row;
+ Row.Address = Address;
+ RowIter FirstRow = Rows.begin() + Seq.FirstRowIndex;
+ RowIter LastRow = Rows.begin() + Seq.LastRowIndex;
+ LineTable::RowIter RowPos = std::lower_bound(
+ FirstRow, LastRow, Row, DWARFDebugLine::Row::orderByAddress);
+ if (RowPos == LastRow) {
+ return Seq.LastRowIndex - 1;
}
- uint32_t index = seq.FirstRowIndex + (row_pos - first_row);
- if (row_pos->Address > address) {
- if (row_pos == first_row)
+ uint32_t Index = Seq.FirstRowIndex + (RowPos - FirstRow);
+ if (RowPos->Address > Address) {
+ if (RowPos == FirstRow)
return UnknownRowIndex;
else
- index--;
+ Index--;
}
- return index;
+ return Index;
}
-uint32_t DWARFDebugLine::LineTable::lookupAddress(uint64_t address) const {
+uint32_t DWARFDebugLine::LineTable::lookupAddress(uint64_t Address) const {
if (Sequences.empty())
return UnknownRowIndex;
// First, find an instruction sequence containing the given address.
- DWARFDebugLine::Sequence sequence;
- sequence.LowPC = address;
- SequenceIter first_seq = Sequences.begin();
- SequenceIter last_seq = Sequences.end();
- SequenceIter seq_pos = std::lower_bound(
- first_seq, last_seq, sequence, DWARFDebugLine::Sequence::orderByLowPC);
- DWARFDebugLine::Sequence found_seq;
- if (seq_pos == last_seq) {
- found_seq = Sequences.back();
- } else if (seq_pos->LowPC == address) {
- found_seq = *seq_pos;
+ DWARFDebugLine::Sequence Sequence;
+ Sequence.LowPC = Address;
+ SequenceIter FirstSeq = Sequences.begin();
+ SequenceIter LastSeq = Sequences.end();
+ SequenceIter SeqPos = std::lower_bound(
+ FirstSeq, LastSeq, Sequence, DWARFDebugLine::Sequence::orderByLowPC);
+ DWARFDebugLine::Sequence FoundSeq;
+ if (SeqPos == LastSeq) {
+ FoundSeq = Sequences.back();
+ } else if (SeqPos->LowPC == Address) {
+ FoundSeq = *SeqPos;
} else {
- if (seq_pos == first_seq)
+ if (SeqPos == FirstSeq)
return UnknownRowIndex;
- found_seq = *(seq_pos - 1);
+ FoundSeq = *(SeqPos - 1);
}
- return findRowInSeq(found_seq, address);
+ return findRowInSeq(FoundSeq, Address);
}
bool DWARFDebugLine::LineTable::lookupAddressRange(
- uint64_t address, uint64_t size, std::vector<uint32_t> &result) const {
+ uint64_t Address, uint64_t Size, std::vector<uint32_t> &Result) const {
if (Sequences.empty())
return false;
- uint64_t end_addr = address + size;
+ uint64_t EndAddr = Address + Size;
// First, find an instruction sequence containing the given address.
- DWARFDebugLine::Sequence sequence;
- sequence.LowPC = address;
- SequenceIter first_seq = Sequences.begin();
- SequenceIter last_seq = Sequences.end();
- SequenceIter seq_pos = std::lower_bound(
- first_seq, last_seq, sequence, DWARFDebugLine::Sequence::orderByLowPC);
- if (seq_pos == last_seq || seq_pos->LowPC != address) {
- if (seq_pos == first_seq)
+ DWARFDebugLine::Sequence Sequence;
+ Sequence.LowPC = Address;
+ SequenceIter FirstSeq = Sequences.begin();
+ SequenceIter LastSeq = Sequences.end();
+ SequenceIter SeqPos = std::lower_bound(
+ FirstSeq, LastSeq, Sequence, DWARFDebugLine::Sequence::orderByLowPC);
+ if (SeqPos == LastSeq || SeqPos->LowPC != Address) {
+ if (SeqPos == FirstSeq)
return false;
- seq_pos--;
+ SeqPos--;
}
- if (!seq_pos->containsPC(address))
+ if (!SeqPos->containsPC(Address))
return false;
- SequenceIter start_pos = seq_pos;
+ SequenceIter StartPos = SeqPos;
// Add the rows from the first sequence to the vector, starting with the
// index we just calculated
- while (seq_pos != last_seq && seq_pos->LowPC < end_addr) {
- const DWARFDebugLine::Sequence &cur_seq = *seq_pos;
+ while (SeqPos != LastSeq && SeqPos->LowPC < EndAddr) {
+ const DWARFDebugLine::Sequence &CurSeq = *SeqPos;
// For the first sequence, we need to find which row in the sequence is the
// first in our range.
- uint32_t first_row_index = cur_seq.FirstRowIndex;
- if (seq_pos == start_pos)
- first_row_index = findRowInSeq(cur_seq, address);
+ uint32_t FirstRowIndex = CurSeq.FirstRowIndex;
+ if (SeqPos == StartPos)
+ FirstRowIndex = findRowInSeq(CurSeq, Address);
// Figure out the last row in the range.
- uint32_t last_row_index = findRowInSeq(cur_seq, end_addr - 1);
- if (last_row_index == UnknownRowIndex)
- last_row_index = cur_seq.LastRowIndex - 1;
+ uint32_t LastRowIndex = findRowInSeq(CurSeq, EndAddr - 1);
+ if (LastRowIndex == UnknownRowIndex)
+ LastRowIndex = CurSeq.LastRowIndex - 1;
- assert(first_row_index != UnknownRowIndex);
- assert(last_row_index != UnknownRowIndex);
+ assert(FirstRowIndex != UnknownRowIndex);
+ assert(LastRowIndex != UnknownRowIndex);
- for (uint32_t i = first_row_index; i <= last_row_index; ++i) {
- result.push_back(i);
+ for (uint32_t I = FirstRowIndex; I <= LastRowIndex; ++I) {
+ Result.push_back(I);
}
- ++seq_pos;
+ ++SeqPos;
}
return true;
}
-bool
-DWARFDebugLine::LineTable::hasFileAtIndex(uint64_t FileIndex) const {
+bool DWARFDebugLine::LineTable::hasFileAtIndex(uint64_t FileIndex) const {
return FileIndex != 0 && FileIndex <= Prologue.FileNames.size();
}
-bool
-DWARFDebugLine::LineTable::getFileNameByIndex(uint64_t FileIndex,
- const char *CompDir,
- FileLineInfoKind Kind,
- std::string &Result) const {
+bool DWARFDebugLine::LineTable::getFileNameByIndex(uint64_t FileIndex,
+ const char *CompDir,
+ FileLineInfoKind Kind,
+ std::string &Result) const {
if (Kind == FileLineInfoKind::None || !hasFileAtIndex(FileIndex))
return false;
const FileNameEntry &Entry = Prologue.FileNames[FileIndex - 1];
projects / platform / upstream / llvm.git / commitdiff