1 files changed, 0 insertions, 94 deletions
diff --git a/gnu/llvm/lib/Object/Decompressor.cpp b/gnu/llvm/lib/Object/Decompressor.cpp
deleted file mode 100644
index 53f084d7620..00000000000
--- a/gnu/llvm/lib/Object/Decompressor.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-//===-- Decompressor.cpp --------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Object/Decompressor.h"
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/Object/ELFObjectFile.h"
-#include "llvm/Support/Compression.h"
-#include "llvm/Support/DataExtractor.h"
-#include "llvm/Support/Endian.h"
-
-using namespace llvm;
-using namespace llvm::support::endian;
-using namespace object;
-
-Expected<Decompressor> Decompressor::create(StringRef Name, StringRef Data,
-                                            bool IsLE, bool Is64Bit) {
-  if (!zlib::isAvailable())
-    return createError("zlib is not available");
-
-  Decompressor D(Data);
-  Error Err = isGnuStyle(Name) ? D.consumeCompressedGnuHeader()
-                               : D.consumeCompressedZLibHeader(Is64Bit, IsLE);
-  if (Err)
-    return std::move(Err);
-  return D;
-}
-
-Decompressor::Decompressor(StringRef Data)
-    : SectionData(Data), DecompressedSize(0) {}
-
-Error Decompressor::consumeCompressedGnuHeader() {
-  if (!SectionData.startswith("ZLIB"))
-    return createError("corrupted compressed section header");
-
-  SectionData = SectionData.substr(4);
-
-  // Consume uncompressed section size (big-endian 8 bytes).
-  if (SectionData.size() < 8)
-    return createError("corrupted uncompressed section size");
-  DecompressedSize = read64be(SectionData.data());
-  SectionData = SectionData.substr(8);
-
-  return Error::success();
-}
-
-Error Decompressor::consumeCompressedZLibHeader(bool Is64Bit,
-                                                bool IsLittleEndian) {
-  using namespace ELF;
-  uint64_t HdrSize = Is64Bit ? sizeof(Elf64_Chdr) : sizeof(Elf32_Chdr);
-  if (SectionData.size() < HdrSize)
-    return createError("corrupted compressed section header");
-
-  DataExtractor Extractor(SectionData, IsLittleEndian, 0);
-  uint32_t Offset = 0;
-  if (Extractor.getUnsigned(&Offset, Is64Bit ? sizeof(Elf64_Word)
-                                             : sizeof(Elf32_Word)) !=
-      ELFCOMPRESS_ZLIB)
-    return createError("unsupported compression type");
-
-  // Skip Elf64_Chdr::ch_reserved field.
-  if (Is64Bit)
-    Offset += sizeof(Elf64_Word);
-
-  DecompressedSize = Extractor.getUnsigned(
-      &Offset, Is64Bit ? sizeof(Elf64_Xword) : sizeof(Elf32_Word));
-  SectionData = SectionData.substr(HdrSize);
-  return Error::success();
-}
-
-bool Decompressor::isGnuStyle(StringRef Name) {
-  return Name.startswith(".zdebug");
-}
-
-bool Decompressor::isCompressed(const object::SectionRef &Section) {
-  StringRef Name;
-  if (Section.getName(Name))
-    return false;
-  return Section.isCompressed() || isGnuStyle(Name);
-}
-
-bool Decompressor::isCompressedELFSection(uint64_t Flags, StringRef Name) {
-  return (Flags & ELF::SHF_COMPRESSED) || isGnuStyle(Name);
-}
-
-Error Decompressor::decompress(MutableArrayRef<char> Buffer) {
-  size_t Size = Buffer.size();
-  return zlib::uncompress(SectionData, Buffer.data(), Size);
-}