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9201a06027
Before we start disabling acquisition of the big process lock for specific syscalls, make sure to document and assert that all the lock is held during all syscalls.
37 lines
889 B
C++
37 lines
889 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/KSyms.h>
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#include <Kernel/PerformanceManager.h>
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#include <Kernel/Process.h>
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#include <Kernel/Thread.h>
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namespace Kernel {
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void Process::sys$exit(int status)
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{
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// FIXME: We have callers from kernel which don't aquire the big process lock.
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if (Thread::current()->previous_mode() == Thread::PreviousMode::UserMode) {
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
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}
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{
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ProtectedDataMutationScope scope { *this };
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m_termination_status = status;
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m_termination_signal = 0;
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}
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auto* current_thread = Thread::current();
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current_thread->set_profiling_suppressed();
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PerformanceManager::add_thread_exit_event(*current_thread);
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die();
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current_thread->die_if_needed();
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VERIFY_NOT_REACHED();
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}
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}
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