#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Triple.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/ProfileData/CoverageMapping.h"
#include "llvm/ProfileData/InstrProf.h"
namespace llvm {
namespace coverage {
-class ObjectFileCoverageMappingReader;
+class CoverageMappingReader;
/// \brief Coverage mapping information for a single function.
struct CoverageMappingRecord {
/// \brief A file format agnostic iterator over coverage mapping data.
class CoverageMappingIterator
: public std::iterator<std::input_iterator_tag, CoverageMappingRecord> {
- ObjectFileCoverageMappingReader *Reader;
+ CoverageMappingReader *Reader;
CoverageMappingRecord Record;
void increment();
public:
CoverageMappingIterator() : Reader(nullptr) {}
- CoverageMappingIterator(ObjectFileCoverageMappingReader *Reader)
- : Reader(Reader) {
+ CoverageMappingIterator(CoverageMappingReader *Reader) : Reader(Reader) {
increment();
}
CoverageMappingRecord *operator->() { return &Record; }
};
+class CoverageMappingReader {
+public:
+ virtual std::error_code readNextRecord(CoverageMappingRecord &Record) = 0;
+ CoverageMappingIterator begin() { return CoverageMappingIterator(this); }
+ CoverageMappingIterator end() { return CoverageMappingIterator(); }
+ virtual ~CoverageMappingReader() {}
+};
+
/// \brief Base class for the raw coverage mapping and filenames data readers.
class RawCoverageReader {
protected:
StringRef Data;
- /// \brief Return the error code.
- std::error_code error(std::error_code EC) { return EC; }
-
- /// \brief Clear the current error code and return a successful one.
- std::error_code success() { return error(instrprof_error::success); }
-
RawCoverageReader(StringRef Data) : Data(Data) {}
std::error_code readULEB128(uint64_t &Result);
/// \brief Reader for the coverage mapping data that is emitted by the
/// frontend and stored in an object file.
-class ObjectFileCoverageMappingReader {
+class BinaryCoverageReader : public CoverageMappingReader {
public:
struct ProfileMappingRecord {
CoverageMappingVersion Version;
};
private:
- std::error_code LastError;
- object::OwningBinary<object::ObjectFile> Object;
std::vector<StringRef> Filenames;
std::vector<ProfileMappingRecord> MappingRecords;
size_t CurrentRecord;
std::vector<CounterExpression> Expressions;
std::vector<CounterMappingRegion> MappingRegions;
- ObjectFileCoverageMappingReader(const ObjectFileCoverageMappingReader &)
- = delete;
- ObjectFileCoverageMappingReader &
- operator=(const ObjectFileCoverageMappingReader &) = delete;
+ BinaryCoverageReader(const BinaryCoverageReader &) = delete;
+ BinaryCoverageReader &operator=(const BinaryCoverageReader &) = delete;
- /// \brief Set the current error_code and return same.
- std::error_code error(std::error_code EC) {
- LastError = EC;
- return EC;
- }
-
- /// \brief Clear the current error code and return a successful one.
- std::error_code success() { return error(instrprof_error::success); }
+ BinaryCoverageReader() : CurrentRecord(0) {}
public:
- ObjectFileCoverageMappingReader(StringRef FileName);
- ObjectFileCoverageMappingReader(
- std::unique_ptr<MemoryBuffer> &ObjectBuffer,
- sys::fs::file_magic Type = sys::fs::file_magic::unknown);
-
- std::error_code readHeader();
- std::error_code readNextRecord(CoverageMappingRecord &Record);
-
- /// Iterator over profile data.
- CoverageMappingIterator begin() { return CoverageMappingIterator(this); }
- CoverageMappingIterator end() { return CoverageMappingIterator(); }
+ static ErrorOr<std::unique_ptr<BinaryCoverageReader>>
+ create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
+ StringRef Arch);
- /// \brief Return true if the reader has finished reading the profile data.
- bool isEOF() { return LastError == instrprof_error::eof; }
- /// \brief Return true if the reader encountered an error reading profiling
- /// data.
- bool hasError() { return LastError && !isEOF(); }
- /// \brief Get the current error code.
- std::error_code getError() { return LastError; }
+ std::error_code readNextRecord(CoverageMappingRecord &Record) override;
};
} // end namespace coverage