+ErrorOr<std::unique_ptr<BinaryCoverageReader>>
+BinaryCoverageReader::create(std::unique_ptr<MemoryBuffer> &ObjectBuffer,
+ StringRef Arch) {
+ std::unique_ptr<BinaryCoverageReader> Reader(new BinaryCoverageReader());
+
+ InstrProfSymtab ProfileNames;
+ StringRef Coverage;
+ uint8_t BytesInAddress;
+ support::endianness Endian;
+ std::error_code EC;
+ if (ObjectBuffer->getBuffer().startswith(TestingFormatMagic))
+ // This is a special format used for testing.
+ EC = loadTestingFormat(ObjectBuffer->getBuffer(), ProfileNames, Coverage,
+ BytesInAddress, Endian);
+ else
+ EC = loadBinaryFormat(ObjectBuffer->getMemBufferRef(), ProfileNames,
+ Coverage, BytesInAddress, Endian, Arch);
+ if (EC)
+ return EC;
+
+ if (BytesInAddress == 4 && Endian == support::endianness::little)
+ EC = readCoverageMappingData<uint32_t, support::endianness::little>(
+ ProfileNames, Coverage, Reader->MappingRecords, Reader->Filenames);
+ else if (BytesInAddress == 4 && Endian == support::endianness::big)
+ EC = readCoverageMappingData<uint32_t, support::endianness::big>(
+ ProfileNames, Coverage, Reader->MappingRecords, Reader->Filenames);
+ else if (BytesInAddress == 8 && Endian == support::endianness::little)
+ EC = readCoverageMappingData<uint64_t, support::endianness::little>(
+ ProfileNames, Coverage, Reader->MappingRecords, Reader->Filenames);
+ else if (BytesInAddress == 8 && Endian == support::endianness::big)
+ EC = readCoverageMappingData<uint64_t, support::endianness::big>(
+ ProfileNames, Coverage, Reader->MappingRecords, Reader->Filenames);
+ else
+ return coveragemap_error::malformed;
+ if (EC)
+ return EC;
+ return std::move(Reader);