dcc97c0887
Also delete some fdsan code that attempts to check for the post-fork state, but never will, because we update the cached pid upon fork. Bug: http://b/174542867 Test: /data/nativetest64/bionic-unit-tests/bionic-unit-tests Test: treehugger Change-Id: I9b748dac9de9b4c741897d93e64d31737e52bf8e
65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/*
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* Copyright (C) 2019 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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#include <stdatomic.h>
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#include <platform/bionic/fdtrack.h>
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#include <platform/bionic/reserved_signals.h>
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#include "private/bionic_fdtrack.h"
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#include "private/bionic_tls.h"
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#include "private/bionic_globals.h"
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_Atomic(android_fdtrack_hook_t) __android_fdtrack_hook;
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bool __android_fdtrack_globally_disabled = false;
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void android_fdtrack_set_globally_enabled(bool new_value) {
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__android_fdtrack_globally_disabled = !new_value;
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}
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bool android_fdtrack_get_enabled() {
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return !__get_bionic_tls().fdtrack_disabled && !__android_fdtrack_globally_disabled;
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}
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bool android_fdtrack_set_enabled(bool new_value) {
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auto& tls = __get_bionic_tls();
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bool prev = !tls.fdtrack_disabled;
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tls.fdtrack_disabled = !new_value;
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return prev;
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}
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bool android_fdtrack_compare_exchange_hook(android_fdtrack_hook_t* expected,
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android_fdtrack_hook_t value) {
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return atomic_compare_exchange_strong(&__android_fdtrack_hook, expected, value);
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}
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void __libc_init_fdtrack() {
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// Register a no-op signal handler.
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signal(BIONIC_SIGNAL_FDTRACK, [](int) {});
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}
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