Remove obsolete bitcode wrapper code

We are using our own bitcode reader now, and no longer need this.

R=jvoung@chromium.org, kschimpf@google.com
BUG=cleanup

Review URL: https://codereview.chromium.org/32943005

1 files changed, 0 insertions, 192 deletions

diff --git a/include/llvm/Wrap/bitcode_wrapperer.h b/include/llvm/Wrap/bitcode_wrapperer.h
deleted file mode 100644
index 89f2a4cbcc..0000000000
--- a/include/llvm/Wrap/bitcode_wrapperer.h
+++ /dev/null
@@ -1,192 +0,0 @@
-/* Copyright 2012 The Native Client Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can
- * be found in the LICENSE file.
- */
-
-// Define utility class to wrap/unwrap bitcode files. Does wrapping/unwrapping
-// in such a way that the wrappered bitcode file is still a bitcode file.
-
-#ifndef LLVM_WRAP_BITCODE_WRAPPERER_H__
-#define LLVM_WRAP_BITCODE_WRAPPERER_H__
-
-#include <stdint.h>
-#include <stddef.h>
-#include <vector>
-
-#include "llvm/Support/support_macros.h"
-#include "llvm/Wrap/BCHeaderField.h"
-#include "llvm/Wrap/wrapper_input.h"
-#include "llvm/Wrap/wrapper_output.h"
-
-// The bitcode wrapper header is the following 7 fixed 4-byte fields:
-//      1) 0B17C0DE - The magic number expected by llvm for wrapped bitcodes
-//      2) Version # 0 - The current version of wrapped bitcode files
-//      3) (raw) bitcode offset
-//      4) (raw) bitcode size
-//      5) Android header version
-//      6) Android target API
-//      7) PNaCl Bitcode version
-//      plus 0 or more variable-length fields (consisting of ID, length, data)
-
-// Initial buffer size. It is expanded if needed to hold large variable-size
-// fields.
-static const size_t kBitcodeWrappererBufferSize = 1024;
-
-// Support class for outputting a wrapped bitcode file from a raw bitcode
-// file (and optionally additional header fields), or for outputting a raw
-// bitcode file from a wrapped one.
-class BitcodeWrapperer {
- public:
-  // Create a bitcode wrapperer using the following
-  // input and output files.
-  BitcodeWrapperer(WrapperInput* infile, WrapperOutput* outfile);
-
-  // Returns true if the input file begins with a bitcode
-  // wrapper magic number. As a side effect, _wrapper_ fields are set.
-  bool IsInputBitcodeWrapper();
-
-  // Returns true if the input file begins with a bitcode
-  // file magic number.
-  bool IsInputBitcodeFile();
-
-  // Add a variable-length field to the header. The caller is responsible
-  // for freeing the data pointed to by the BCHeaderField.
-  void AddHeaderField(BCHeaderField* field);
-
-  // Generate a wrapped bitcode file from the input bitcode file
-  // and the current header data. Return true on success.
-  bool GenerateWrappedBitcodeFile();
-
-  // Unwrap the wrapped bitcode file, to the corresponding
-  // outfile. Return true on success.
-  bool GenerateRawBitcodeFile();
-
-  // Print current wrapper header fields to stderr for debugging.
-  void PrintWrapperHeader();
-
-  ~BitcodeWrapperer();
-
- private:
-  DISALLOW_CLASS_COPY_AND_ASSIGN(BitcodeWrapperer);
-
-  // Refills the buffer with more bytes. Does this in a way
-  // such that it is maximally filled.
-  void FillBuffer();
-
-  // Returns the number of bytes in infile.
-  off_t GetInFileSize() {
-    if (infile_ != NULL) {
-      return infile_->Size();
-    } else {
-      return 0;
-    }
-  }
-
-  // Returns the offset of bitcode (i.e. the size of the wrapper header)
-  // if the output file were to be written now.
-  size_t BitcodeOffset();
-
-  // Returns true if we can read a word. If necessary, fills the buffer
-  // with enough characters so that there are at least a 32-bit value
-  // in the buffer. Returns false if there isn't a 32-bit value
-  // to read from the input file.
-  bool CanReadWord();
-
-  // Read a (32-bit) word from the input. Return true
-  // if able to read the word.
-  bool ReadWord(uint32_t& word);
-
-  // Write a (32-bit) word to the output. Return true if successful
-  bool WriteWord(uint32_t word);
-
-  // Write all variable-sized header fields to the output. Return true
-  // if successful.
-  bool WriteVariableFields();
-
-  // Parse the bitcode wrapper header in the infile, if any. Return true
-  // if successful.
-  bool ParseWrapperHeader();
-
-  // Returns the i-th character in front of the cursor in the buffer.
-  uint8_t BufferLookahead(int i) { return buffer_[cursor_ + i]; }
-
-  // Returns how many unread bytes are in the buffer.
-  size_t GetBufferUnreadBytes() { return buffer_size_ - cursor_; }
-
-
-  // Backs up the read cursor to the beginning of the input buffer.
-  void ResetCursor() {
-    cursor_ = 0;
-  }
-
-  // Generates the header sequence for the wrapped bitcode being
-  // generated.
-  bool WriteBitcodeWrapperHeader();
-
-  // Copies size bytes of infile to outfile, using the buffer.
-  bool BufferCopyInToOut(uint32_t size);
-
-  // Discards the old infile and replaces it with the given file.
-  void ReplaceInFile(WrapperInput* new_infile);
-
-  // Discards the old outfile and replaces it with the given file.
-  void ReplaceOutFile(WrapperOutput* new_outfile);
-
-  // Moves to the given position in the input file. Returns false
-  // if unsuccessful.
-  bool Seek(uint32_t pos);
-
-  // Clear the buffer of all contents.
-  void ClearBuffer();
-
-  // The input file being processed. Can be either
-  // a bitcode file, a wrappered bitcode file, or a secondary
-  // file to be wrapped.
-  WrapperInput* infile_;
-
-  // The output file being generated. Can be either
-  // a bitcode file, a wrappered bitcode file, or a secondary
-  // unwrapped file.
-  WrapperOutput* outfile_;
-
-  // A buffer of bytes read from the input file.
-  std::vector<uint8_t> buffer_;
-
-  // The number of bytes that were read from the input file
-  // into the buffer.
-  size_t buffer_size_;
-
-  // The index to the current read point within the buffer.
-  size_t cursor_;
-
-  // True when eof of input is reached.
-  bool infile_at_eof_;
-
-  // The 32-bit value defining the offset of the raw bitcode in the input file.
-  uint32_t infile_bc_offset_;
-
-  // The 32-bit value defining the generated offset of the wrapped bitcode.
-  // This value changes as new fields are added with AddHeaderField
-  uint32_t wrapper_bc_offset_;
-
-  // The 32-bit value defining the size of the raw wrapped bitcode.
-  uint32_t wrapper_bc_size_;
-
-  // Android header version and target API
-  uint32_t android_header_version_;
-  uint32_t android_target_api_;
-
-  // PNaCl bitcode version
-  uint32_t pnacl_bc_version_;
-
-  // Vector of variable header fields
-  std::vector<BCHeaderField> header_fields_;
-  // If any bufferdata from header fields is owned, it is stored here and
-  // freed on destruction.
-  std::vector<uint8_t*> variable_field_data_;
-
-  // True if there was an error condition (e.g. the file is not bitcode)
-  bool error_;
-};
-
-#endif  // LLVM_WRAP_BITCODE_WRAPPERER_H__