Create libelffile library for ELF file manipulation.

Move some of our tooling to library to make it reusable.

Remove MIPS support from the ELF builder.  This is slightly
easier than making it independent of the runtime.

Bug: 110133331
Test: test.py -b --host
Change-Id: I93343808d0e27ee8e1117e713a2503e8179fc245

1 files changed, 0 insertions, 162 deletions

diff --git a/compiler/debug/dwarf/headers.h b/compiler/debug/dwarf/headers.h
deleted file mode 100644
index 3cc8ad8290..0000000000
--- a/compiler/debug/dwarf/headers.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ART_COMPILER_DEBUG_DWARF_HEADERS_H_
-#define ART_COMPILER_DEBUG_DWARF_HEADERS_H_
-
-#include <cstdint>
-
-#include "base/array_ref.h"
-#include "debug/dwarf/debug_frame_opcode_writer.h"
-#include "debug/dwarf/debug_info_entry_writer.h"
-#include "debug/dwarf/debug_line_opcode_writer.h"
-#include "debug/dwarf/dwarf_constants.h"
-#include "debug/dwarf/register.h"
-#include "debug/dwarf/writer.h"
-
-namespace art {
-namespace dwarf {
-
-// Note that all headers start with 32-bit length.
-// DWARF also supports 64-bit lengths, but we never use that.
-// It is intended to support very large debug sections (>4GB),
-// and compilers are expected *not* to use it by default.
-// In particular, it is not related to machine architecture.
-
-// Write common information entry (CIE) to .debug_frame or .eh_frame section.
-template<typename Vector>
-void WriteCIE(bool is64bit,
-              Reg return_address_register,
-              const DebugFrameOpCodeWriter<Vector>& opcodes,
-              std::vector<uint8_t>* buffer) {
-  static_assert(std::is_same<typename Vector::value_type, uint8_t>::value, "Invalid value type");
-
-  Writer<> writer(buffer);
-  size_t cie_header_start_ = writer.data()->size();
-  writer.PushUint32(0);  // Length placeholder.
-  writer.PushUint32(0xFFFFFFFF);  // CIE id.
-  writer.PushUint8(1);   // Version.
-  writer.PushString("zR");
-  writer.PushUleb128(DebugFrameOpCodeWriter<Vector>::kCodeAlignmentFactor);
-  writer.PushSleb128(DebugFrameOpCodeWriter<Vector>::kDataAlignmentFactor);
-  writer.PushUleb128(return_address_register.num());  // ubyte in DWARF2.
-  writer.PushUleb128(1);  // z: Augmentation data size.
-  if (is64bit) {
-    writer.PushUint8(DW_EH_PE_absptr | DW_EH_PE_udata8);  // R: Pointer encoding.
-  } else {
-    writer.PushUint8(DW_EH_PE_absptr | DW_EH_PE_udata4);  // R: Pointer encoding.
-  }
-  writer.PushData(opcodes.data());
-  writer.Pad(is64bit ? 8 : 4);
-  writer.UpdateUint32(cie_header_start_, writer.data()->size() - cie_header_start_ - 4);
-}
-
-// Write frame description entry (FDE) to .debug_frame or .eh_frame section.
-inline
-void WriteFDE(bool is64bit,
-              uint64_t cie_pointer,  // Offset of relevant CIE in debug_frame setcion.
-              uint64_t code_address,
-              uint64_t code_size,
-              const ArrayRef<const uint8_t>& opcodes,
-              /*inout*/ std::vector<uint8_t>* buffer) {
-  Writer<> writer(buffer);
-  size_t fde_header_start = writer.data()->size();
-  writer.PushUint32(0);  // Length placeholder.
-  writer.PushUint32(cie_pointer);
-  // Relocate code_address if it has absolute value.
-  if (is64bit) {
-    writer.PushUint64(code_address);
-    writer.PushUint64(code_size);
-  } else {
-    writer.PushUint32(code_address);
-    writer.PushUint32(code_size);
-  }
-  writer.PushUleb128(0);  // Augmentation data size.
-  writer.PushData(opcodes.data(), opcodes.size());
-  writer.Pad(is64bit ? 8 : 4);
-  writer.UpdateUint32(fde_header_start, writer.data()->size() - fde_header_start - 4);
-}
-
-// Write compilation unit (CU) to .debug_info section.
-template<typename Vector>
-void WriteDebugInfoCU(uint32_t debug_abbrev_offset,
-                      const DebugInfoEntryWriter<Vector>& entries,
-                      std::vector<uint8_t>* debug_info) {
-  static_assert(std::is_same<typename Vector::value_type, uint8_t>::value, "Invalid value type");
-
-  Writer<> writer(debug_info);
-  size_t start = writer.data()->size();
-  writer.PushUint32(0);  // Length placeholder.
-  writer.PushUint16(4);  // Version.
-  writer.PushUint32(debug_abbrev_offset);
-  writer.PushUint8(entries.Is64bit() ? 8 : 4);
-  size_t entries_offset = writer.data()->size();
-  DCHECK_EQ(entries_offset, DebugInfoEntryWriter<Vector>::kCompilationUnitHeaderSize);
-  writer.PushData(entries.data());
-  writer.UpdateUint32(start, writer.data()->size() - start - 4);
-}
-
-struct FileEntry {
-  std::string file_name;
-  int directory_index;
-  int modification_time;
-  int file_size;
-};
-
-// Write line table to .debug_line section.
-template<typename Vector>
-void WriteDebugLineTable(const std::vector<std::string>& include_directories,
-                         const std::vector<FileEntry>& files,
-                         const DebugLineOpCodeWriter<Vector>& opcodes,
-                         std::vector<uint8_t>* debug_line) {
-  static_assert(std::is_same<typename Vector::value_type, uint8_t>::value, "Invalid value type");
-
-  Writer<> writer(debug_line);
-  size_t header_start = writer.data()->size();
-  writer.PushUint32(0);  // Section-length placeholder.
-  writer.PushUint16(3);  // .debug_line version.
-  size_t header_length_pos = writer.data()->size();
-  writer.PushUint32(0);  // Header-length placeholder.
-  writer.PushUint8(1 << opcodes.GetCodeFactorBits());
-  writer.PushUint8(DebugLineOpCodeWriter<Vector>::kDefaultIsStmt ? 1 : 0);
-  writer.PushInt8(DebugLineOpCodeWriter<Vector>::kLineBase);
-  writer.PushUint8(DebugLineOpCodeWriter<Vector>::kLineRange);
-  writer.PushUint8(DebugLineOpCodeWriter<Vector>::kOpcodeBase);
-  static const int opcode_lengths[DebugLineOpCodeWriter<Vector>::kOpcodeBase] = {
-      0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1 };
-  for (int i = 1; i < DebugLineOpCodeWriter<Vector>::kOpcodeBase; i++) {
-    writer.PushUint8(opcode_lengths[i]);
-  }
-  for (const std::string& directory : include_directories) {
-    writer.PushData(directory.data(), directory.size() + 1);
-  }
-  writer.PushUint8(0);  // Terminate include_directories list.
-  for (const FileEntry& file : files) {
-    writer.PushData(file.file_name.data(), file.file_name.size() + 1);
-    writer.PushUleb128(file.directory_index);
-    writer.PushUleb128(file.modification_time);
-    writer.PushUleb128(file.file_size);
-  }
-  writer.PushUint8(0);  // Terminate file list.
-  writer.UpdateUint32(header_length_pos, writer.data()->size() - header_length_pos - 4);
-  writer.PushData(opcodes.data());
-  writer.UpdateUint32(header_start, writer.data()->size() - header_start - 4);
-}
-
-}  // namespace dwarf
-}  // namespace art
-
-#endif  // ART_COMPILER_DEBUG_DWARF_HEADERS_H_