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-rw-r--r--compiler/debug/dwarf/expression.h121
1 files changed, 0 insertions, 121 deletions
diff --git a/compiler/debug/dwarf/expression.h b/compiler/debug/dwarf/expression.h
deleted file mode 100644
index fafc0462d6..0000000000
--- a/compiler/debug/dwarf/expression.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (C) 2016 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_EXPRESSION_H_
-#define ART_COMPILER_DEBUG_DWARF_EXPRESSION_H_
-
-#include <cstddef>
-#include <cstdint>
-
-#include "debug/dwarf/dwarf_constants.h"
-#include "debug/dwarf/writer.h"
-
-namespace art {
-namespace dwarf {
-
-// Writer for DWARF expressions which are used in .debug_info and .debug_loc sections.
-// See the DWARF specification for the precise meaning of the opcodes.
-// If multiple equivalent encodings are possible, it will choose the most compact one.
-// The writer is not exhaustive - it only implements opcodes we have needed so far.
-class Expression : private Writer<> {
- public:
- using Writer<>::data;
- using Writer<>::size;
-
- // Push signed integer on the stack.
- void WriteOpConsts(int32_t value) {
- if (0 <= value && value < 32) {
- PushUint8(DW_OP_lit0 + value);
- } else {
- PushUint8(DW_OP_consts);
- PushSleb128(value);
- }
- }
-
- // Push unsigned integer on the stack.
- void WriteOpConstu(uint32_t value) {
- if (value < 32) {
- PushUint8(DW_OP_lit0 + value);
- } else {
- PushUint8(DW_OP_constu);
- PushUleb128(value);
- }
- }
-
- // Variable is stored in given register.
- void WriteOpReg(uint32_t dwarf_reg_num) {
- if (dwarf_reg_num < 32) {
- PushUint8(DW_OP_reg0 + dwarf_reg_num);
- } else {
- PushUint8(DW_OP_regx);
- PushUleb128(dwarf_reg_num);
- }
- }
-
- // Variable is stored on stack. Also see DW_AT_frame_base.
- void WriteOpFbreg(int32_t stack_offset) {
- PushUint8(DW_OP_fbreg);
- PushSleb128(stack_offset);
- }
-
- // The variable is stored in multiple locations (pieces).
- void WriteOpPiece(uint32_t num_bytes) {
- PushUint8(DW_OP_piece);
- PushUleb128(num_bytes);
- }
-
- // Loads 32-bit or 64-bit value depending on architecture.
- void WriteOpDeref() { PushUint8(DW_OP_deref); }
-
- // Loads value of given byte size.
- void WriteOpDerefSize(uint8_t num_bytes) {
- PushUint8(DW_OP_deref_size);
- PushUint8(num_bytes);
- }
-
- // Pop two values and push their sum.
- void WriteOpPlus() { PushUint8(DW_OP_plus); }
-
- // Add constant value to value on top of stack.
- void WriteOpPlusUconst(uint32_t offset) {
- PushUint8(DW_OP_plus_uconst);
- PushUleb128(offset);
- }
-
- // Negate top of stack.
- void WriteOpNeg() { PushUint8(DW_OP_neg); }
-
- // Pop two values and push their bitwise-AND.
- void WriteOpAnd() { PushUint8(DW_OP_and); }
-
- // Push stack base pointer as determined from .debug_frame.
- void WriteOpCallFrameCfa() { PushUint8(DW_OP_call_frame_cfa); }
-
- // Push address of the variable we are working with.
- void WriteOpPushObjectAddress() { PushUint8(DW_OP_push_object_address); }
-
- // Return the top stack as the value of the variable.
- // Otherwise, the top of stack is the variable's location.
- void WriteOpStackValue() { PushUint8(DW_OP_stack_value); }
-
- explicit Expression(std::vector<uint8_t>* buffer) : Writer<>(buffer) {
- buffer->clear();
- }
-};
-} // namespace dwarf
-} // namespace art
-
-#endif // ART_COMPILER_DEBUG_DWARF_EXPRESSION_H_