b6453c52ac
Before, dynamic executables would initialize the global stack protector twice, once for the linker, and once for the executable. This worked because the result was the same for both initializations, because it used getauxval(AT_RANDOM), which won't be the case once arc4random gets used for it. Bug: http://b/29622562 Change-Id: I7718b1ba8ee8fac7127ab2360cb1088e510fef5c Test: ran the stack protector tests on angler (32/64bit, static/dynamic)
56 lines
2.2 KiB
C++
56 lines
2.2 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_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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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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