47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_SIGCHAINLIB_SIGCHAIN_H_
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#define ART_SIGCHAINLIB_SIGCHAIN_H_
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// TODO(b/142944043): Symbol changes here currently need to be reflected in
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// version scripts in frameworks/base/cmds/app_process. The plan is to convert
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// libsigchain to a shared lib to get rid of them.
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#include <signal.h>
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#include <stdint.h>
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namespace art {
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// Handlers that exit without returning to their caller (e.g. via siglongjmp) must pass this flag.
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static constexpr uint64_t SIGCHAIN_ALLOW_NORETURN = 0x1UL;
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struct SigchainAction {
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bool (*sc_sigaction)(int, siginfo_t*, void*);
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sigset_t sc_mask;
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uint64_t sc_flags;
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};
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extern "C" void AddSpecialSignalHandlerFn(int signal, SigchainAction* sa);
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extern "C" void RemoveSpecialSignalHandlerFn(int signal, bool (*fn)(int, siginfo_t*, void*));
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extern "C" void EnsureFrontOfChain(int signal);
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extern "C" void SkipAddSignalHandler(bool value);
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} // namespace art
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#endif // ART_SIGCHAINLIB_SIGCHAIN_H_
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