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/*
* Copyright (C) 2014 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_UTILS_DWARF_CFI_H_
#define ART_COMPILER_UTILS_DWARF_CFI_H_
#include <vector>
namespace art {
/**
* @brief Enter a 'DW_CFA_advance_loc' into an FDE buffer
* @param buf FDE buffer.
* @param increment Amount by which to increase the current location.
*/
void DW_CFA_advance_loc(std::vector<uint8_t>* buf, uint32_t increment);
/**
* @brief Enter a 'DW_CFA_offset_extended_sf' into an FDE buffer
* @param buf FDE buffer.
* @param reg Register number.
* @param offset Offset of register address from CFA.
*/
void DW_CFA_offset_extended_sf(std::vector<uint8_t>* buf, int reg, int32_t offset);
/**
* @brief Enter a 'DW_CFA_offset' into an FDE buffer
* @param buf FDE buffer.
* @param reg Register number.
* @param offset Offset of register address from CFA.
*/
void DW_CFA_offset(std::vector<uint8_t>* buf, int reg, uint32_t offset);
/**
* @brief Enter a 'DW_CFA_def_cfa_offset' into an FDE buffer
* @param buf FDE buffer.
* @param offset New offset of CFA.
*/
void DW_CFA_def_cfa_offset(std::vector<uint8_t>* buf, int32_t offset);
/**
* @brief Enter a 'DW_CFA_remember_state' into an FDE buffer
* @param buf FDE buffer.
*/
void DW_CFA_remember_state(std::vector<uint8_t>* buf);
/**
* @brief Enter a 'DW_CFA_restore_state' into an FDE buffer
* @param buf FDE buffer.
*/
void DW_CFA_restore_state(std::vector<uint8_t>* buf);
/**
* @brief Write FDE header into an FDE buffer
* @param buf FDE buffer.
*/
void WriteFDEHeader(std::vector<uint8_t>* buf);
/**
* @brief Set 'address_range' field of an FDE buffer
* @param buf FDE buffer.
*/
void WriteFDEAddressRange(std::vector<uint8_t>* buf, uint32_t data);
/**
* @brief Set 'length' field of an FDE buffer
* @param buf FDE buffer.
*/
void WriteCFILength(std::vector<uint8_t>* buf);
/**
* @brief Pad an FDE buffer with 0 until its size is a multiple of 4
* @param buf FDE buffer.
*/
void PadCFI(std::vector<uint8_t>* buf);
} // namespace art
#endif // ART_COMPILER_UTILS_DWARF_CFI_H_
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