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/*
* Copyright (C) 2024 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.
*/
#pragma once
#include <sys/types.h>
namespace android {
/*
* This function deallocates space used by zero padding at the end of LOAD segments in given
* uncompressed ELF file. Read ELF headers and find out the offset and sizes of LOAD segments.
* [fallocate(2)](http://man7.org/linux/man-pages/man2/fallocate.2.html) is used to deallocate the
* zero ranges at the end of LOAD segments. If ELF file is present inside of ApK/Zip file, offset to
* the start of the ELF file should be provided.
*/
bool punchHolesInElf64(const char* filePath, uint64_t offset);
/*
* This function punches holes in zero segments of Apk file which are introduced during the
* alignment. Alignment tools add padding inside of extra field in local file header. punch holes in
* extra field for zero stretches till the actual file content.
*/
bool punchHolesInZip(const char* filePath, uint64_t offset, uint16_t extraFieldLen);
} // namespace android
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