f6e5b58260
Add two functions to allow objects that own a file descriptor to enforce that only they can close their file descriptor. Use them in FILE* and DIR*. Bug: http://b/110100358 Test: bionic_unit_tests Test: aosp/master boots without errors Test: treehugger Change-Id: Iecd6e8b26c62217271e0822dc3d2d7888b091a45
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
/*
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* Copyright (C) 2015 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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#ifndef _PRIVATE_BIONIC_GLOBALS_H
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#define _PRIVATE_BIONIC_GLOBALS_H
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#include <sys/cdefs.h>
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#include "private/bionic_fdsan.h"
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#include "private/bionic_malloc_dispatch.h"
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#include "private/bionic_vdso.h"
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#include "private/WriteProtected.h"
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struct libc_globals {
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vdso_entry vdso[VDSO_END];
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long setjmp_cookie;
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MallocDispatch malloc_dispatch;
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};
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__LIBC_HIDDEN__ extern WriteProtected<libc_globals> __libc_globals;
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// Globals shared between the dynamic linker and libc.so.
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struct libc_shared_globals {
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FdTable<128> fd_table;
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};
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__LIBC_HIDDEN__ extern libc_shared_globals* __libc_shared_globals;
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__LIBC_HIDDEN__ void __libc_init_shared_globals(libc_shared_globals*);
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__LIBC_HIDDEN__ void __libc_init_fdsan();
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class KernelArgumentBlock;
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__LIBC_HIDDEN__ void __libc_init_malloc(libc_globals* globals);
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__LIBC_HIDDEN__ void __libc_init_setjmp_cookie(libc_globals* globals, KernelArgumentBlock& args);
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__LIBC_HIDDEN__ void __libc_init_vdso(libc_globals* globals, KernelArgumentBlock& args);
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#if defined(__i386__)
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__LIBC_HIDDEN__ extern void* __libc_sysinfo;
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__LIBC_HIDDEN__ void __libc_init_sysinfo(KernelArgumentBlock& args);
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#endif
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#endif
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