//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_DEBUGINFO_DWARFDEBUGLINE_H
-#define LLVM_DEBUGINFO_DWARFDEBUGLINE_H
+#ifndef LLVM_LIB_DEBUGINFO_DWARFDEBUGLINE_H
+#define LLVM_LIB_DEBUGINFO_DWARFDEBUGLINE_H
#include "DWARFRelocMap.h"
+#include "llvm/DebugInfo/DIContext.h"
#include "llvm/Support/DataExtractor.h"
#include <map>
#include <string>
public:
DWARFDebugLine(const RelocAddrMap* LineInfoRelocMap) : RelocMap(LineInfoRelocMap) {}
struct FileNameEntry {
- FileNameEntry() : Name(0), DirIdx(0), ModTime(0), Length(0) {}
+ FileNameEntry() : Name(nullptr), DirIdx(0), ModTime(0), Length(0) {}
const char *Name;
uint64_t DirIdx;
};
struct Prologue {
- Prologue()
- : TotalLength(0), Version(0), PrologueLength(0), MinInstLength(0),
- MaxOpsPerInst(0), DefaultIsStmt(0), LineBase(0), LineRange(0),
- OpcodeBase(0) {}
+ Prologue();
// The size in bytes of the statement information for this compilation unit
// (not including the total_length field itself).
int32_t getMaxLineIncrementForSpecialOpcode() const {
return LineBase + (int8_t)LineRange - 1;
}
+
+ void clear();
void dump(raw_ostream &OS) const;
- void clear() {
- TotalLength = Version = PrologueLength = 0;
- MinInstLength = LineBase = LineRange = OpcodeBase = 0;
- StandardOpcodeLengths.clear();
- IncludeDirectories.clear();
- FileNames.clear();
- }
+ bool parse(DataExtractor debug_line_data, uint32_t *offset_ptr);
};
// Standard .debug_line state machine structure.
struct Row {
- Row(bool default_is_stmt = false) { reset(default_is_stmt); }
+ explicit Row(bool default_is_stmt = false);
+
/// Called after a row is appended to the matrix.
void postAppend();
void reset(bool default_is_stmt);
unsigned LastRowIndex;
bool Empty;
- Sequence() { reset(); }
- void reset() {
- LowPC = 0;
- HighPC = 0;
- FirstRowIndex = 0;
- LastRowIndex = 0;
- Empty = true;
- }
+ Sequence();
+ void reset();
+
static bool orderByLowPC(const Sequence& LHS, const Sequence& RHS) {
return LHS.LowPC < RHS.LowPC;
}
};
struct LineTable {
- void appendRow(const DWARFDebugLine::Row &state) { Rows.push_back(state); }
- void appendSequence(const DWARFDebugLine::Sequence &sequence) {
- Sequences.push_back(sequence);
+ LineTable();
+
+ void appendRow(const DWARFDebugLine::Row &R) {
+ Rows.push_back(R);
}
- void clear() {
- Prologue.clear();
- Rows.clear();
- Sequences.clear();
+ 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 -1 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;
// Extracts filename by its index in filename table in prologue.
// Returns true on success.
- bool getFileNameByIndex(uint64_t FileIndex,
- bool NeedsAbsoluteFilePath,
+ 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.
+ bool getFileLineInfoForAddress(uint64_t Address, const char *CompDir,
+ DILineInfoSpecifier::FileLineInfoKind Kind,
+ DILineInfo &Result) const;
+
void dump(raw_ostream &OS) const;
+ void clear();
+
+ /// Parse prologue and all rows.
+ bool parse(DataExtractor debug_line_data, const RelocAddrMap *RMap,
+ uint32_t *offset_ptr);
struct Prologue Prologue;
typedef std::vector<Row> RowVector;
SequenceVector Sequences;
};
- struct State : public Row, public Sequence, public LineTable {
- // Special row codes.
- enum {
- StartParsingLineTable = 0,
- DoneParsingLineTable = -1
- };
-
- State() : row(StartParsingLineTable) {}
- virtual ~State();
-
- virtual void appendRowToMatrix(uint32_t offset);
- virtual void finalize();
- virtual void reset() {
- Row::reset(Prologue.DefaultIsStmt);
- Sequence::reset();
- }
-
- // The row number that starts at zero for the prologue, and increases for
- // each row added to the matrix.
- unsigned row;
- };
-
- struct DumpingState : public State {
- DumpingState(raw_ostream &OS) : OS(OS) {}
- virtual ~DumpingState();
- void finalize() override;
- private:
- raw_ostream &OS;
- };
-
- static bool parsePrologue(DataExtractor debug_line_data, uint32_t *offset_ptr,
- Prologue *prologue);
- /// Parse a single line table (prologue and all rows).
- static bool parseStatementTable(DataExtractor debug_line_data,
- const RelocAddrMap *RMap,
- uint32_t *offset_ptr, State &state);
-
const LineTable *getLineTable(uint32_t offset) const;
const LineTable *getOrParseLineTable(DataExtractor debug_line_data,
uint32_t offset);
private:
+ struct ParsingState {
+ ParsingState(struct LineTable *LT);
+
+ void resetRowAndSequence();
+ void appendRowToMatrix(uint32_t offset);
+
+ // 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.
+ unsigned RowNumber;
+ struct Row Row;
+ struct Sequence Sequence;
+ };
+
typedef std::map<uint32_t, LineTable> LineTableMapTy;
typedef LineTableMapTy::iterator LineTableIter;
typedef LineTableMapTy::const_iterator LineTableConstIter;
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