Revert "Add small library for writing of DWARF data."

objdump differences on the bots

This reverts commit 75c3d61011a06c1253e773c42e53ee6f137dbe53.

Change-Id: Ie5947a27b9fe5de9d5f0838a024b5cf646ec701e

1 files changed, 0 insertions, 96 deletions

diff --git a/compiler/dwarf/debug_frame_writer.h b/compiler/dwarf/debug_frame_writer.h
deleted file mode 100644
index 6de45f5526..0000000000
--- a/compiler/dwarf/debug_frame_writer.h
+++ /dev/null
@@ -1,96 +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_DWARF_DEBUG_FRAME_WRITER_H_
-#define ART_COMPILER_DWARF_DEBUG_FRAME_WRITER_H_
-
-#include "debug_frame_opcode_writer.h"
-#include "dwarf.h"
-#include "writer.h"
-
-namespace art {
-namespace dwarf {
-
-// Writer for the .eh_frame section (which extends .debug_frame specification).
-template<typename Allocator = std::allocator<uint8_t>>
-class DebugFrameWriter FINAL : private Writer<Allocator> {
- public:
-  void WriteCIE(Reg return_address_register,
-                const uint8_t* initial_opcodes,
-                int initial_opcodes_size) {
-    DCHECK(cie_header_start_ == ~0u);
-    cie_header_start_ = this->data()->size();
-    this->PushUint32(0);  // Length placeholder.
-    this->PushUint32(0);  // CIE id.
-    this->PushUint8(1);   // Version.
-    this->PushString("zR");
-    this->PushUleb128(DebugFrameOpCodeWriter<Allocator>::kCodeAlignmentFactor);
-    this->PushSleb128(DebugFrameOpCodeWriter<Allocator>::kDataAlignmentFactor);
-    this->PushUleb128(return_address_register.num());  // ubyte in DWARF2.
-    this->PushUleb128(1);  // z: Augmentation data size.
-    if (use_64bit_address_) {
-      this->PushUint8(0x04);  // R: ((DW_EH_PE_absptr << 4) | DW_EH_PE_udata8).
-    } else {
-      this->PushUint8(0x03);  // R: ((DW_EH_PE_absptr << 4) | DW_EH_PE_udata4).
-    }
-    this->PushData(initial_opcodes, initial_opcodes_size);
-    this->Pad(use_64bit_address_ ? 8 : 4);
-    this->UpdateUint32(cie_header_start_, this->data()->size() - cie_header_start_ - 4);
-  }
-
-  void WriteCIE(Reg return_address_register,
-                const DebugFrameOpCodeWriter<Allocator>& opcodes) {
-    WriteCIE(return_address_register, opcodes.data()->data(), opcodes.data()->size());
-  }
-
-  void WriteFDE(uint64_t initial_address,
-                uint64_t address_range,
-                const uint8_t* unwind_opcodes,
-                int unwind_opcodes_size) {
-    DCHECK(cie_header_start_ != ~0u);
-    size_t fde_header_start = this->data()->size();
-    this->PushUint32(0);  // Length placeholder.
-    this->PushUint32(this->data()->size() - cie_header_start_);  // 'CIE_pointer'
-    if (use_64bit_address_) {
-      this->PushUint64(initial_address);
-      this->PushUint64(address_range);
-    } else {
-      this->PushUint32(initial_address);
-      this->PushUint32(address_range);
-    }
-    this->PushUleb128(0);  // Augmentation data size.
-    this->PushData(unwind_opcodes, unwind_opcodes_size);
-    this->Pad(use_64bit_address_ ? 8 : 4);
-    this->UpdateUint32(fde_header_start, this->data()->size() - fde_header_start - 4);
-  }
-
-  DebugFrameWriter(std::vector<uint8_t, Allocator>* buffer, bool use_64bit_address)
-      : Writer<Allocator>(buffer),
-        use_64bit_address_(use_64bit_address),
-        cie_header_start_(~0u) {
-  }
-
- private:
-  bool use_64bit_address_;
-  size_t cie_header_start_;
-
-  DISALLOW_COPY_AND_ASSIGN(DebugFrameWriter);
-};
-
-}  // namespace dwarf
-}  // namespace art
-
-#endif  // ART_COMPILER_DWARF_DEBUG_FRAME_WRITER_H_