69c68c46ac
vdso should be available in all namespaces when present. This bug went undetected because the way libc currently uses vdso (it does all the lookups itself). This makes it available for the programs that want to take advantage by dlopening it. Bug: http://b/73105445 Bug: http://b/79561555 Test: adb shell /data/nativetest/arm/bionic-unit-tests/bionic-unit-tests --gtest_filter=dl.exec_with_ld_config_file Test: adb shell /data/nativetest/bionic-unit-tests/bionic-unit-tests --gtest_filter=dl* Change-Id: I8eae0c9848f256190d1c9ec85d10dc6ce383a8bc
73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
/*
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* Copyright (C) 2016 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 <android/dlext.h>
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#include <unordered_map>
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#include <vector>
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#include "linker_namespaces.h"
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#include "linker_soinfo.h"
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class ProtectedDataGuard {
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public:
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ProtectedDataGuard();
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~ProtectedDataGuard();
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private:
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void protect_data(int protection);
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static size_t ref_count_;
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};
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class ElfReader;
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std::vector<android_namespace_t*> init_default_namespaces(const char* executable_path);
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soinfo* soinfo_alloc(android_namespace_t* ns, const char* name,
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struct stat* file_stat, off64_t file_offset,
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uint32_t rtld_flags);
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bool find_libraries(android_namespace_t* ns,
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soinfo* start_with,
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const char* const library_names[],
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size_t library_names_count,
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soinfo* soinfos[],
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std::vector<soinfo*>* ld_preloads,
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size_t ld_preloads_count,
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int rtld_flags,
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const android_dlextinfo* extinfo,
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bool add_as_children,
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bool search_linked_namespaces,
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std::vector<android_namespace_t*>* namespaces = nullptr);
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void solist_add_soinfo(soinfo* si);
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bool solist_remove_soinfo(soinfo* si);
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soinfo* solist_get_head();
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soinfo* solist_get_somain();
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soinfo* solist_get_vdso();
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