f0050fb015
Factor out generic __get_elf_note() logic and rename __get_elf_note() to __find_elf_note(). Expose __get_elf_note() in libc/private/bionic_note.h This will be used in the subsequent patch to test the presence of NT_ANDROID_TYPE_PAD_SEGMENT note when loading segments. Test: atest -c linker-unit-tests [Later patch] Test: m && launch_cvd Bug: 316403210 Change-Id: Ia7cb2f40b10cfaef402182a675087c8422b37e4d Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
42 lines
2 KiB
C
42 lines
2 KiB
C
/*
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* Copyright (C) 2024 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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#include <elf.h>
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#include <link.h>
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// Get desired ELF note (Nhdr/desc) from mmapped PT_NOTE
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bool __get_elf_note(unsigned note_type, const char* note_name, const ElfW(Addr) note_addr,
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const ElfW(Phdr)* phdr_note, const ElfW(Nhdr)** note_hdr,
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const char** note_desc);
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// Search all mapped PT_NOTE's for the desired ELF note (Nhdr/desc)
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bool __find_elf_note(unsigned int note_type, const char* note_name, const ElfW(Phdr)* phdr_start,
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size_t phdr_ct, const ElfW(Nhdr)** note_hdr, const char** note_desc,
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const ElfW(Addr) load_bias);
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