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2a78bf8596
The Process::Handler type has KResultOr<FlatPtr> as its return type. Using a different return type with an equally-sized template parameter sort of works but breaks once that condition is no longer true, e.g. for KResultOr<int> on x86_64. Ideally the syscall handlers would also take FlatPtrs as their args so we can get rid of the reinterpret_cast for the function pointer but I didn't quite feel like cleaning that up as well.
23 lines
563 B
C++
23 lines
563 B
C++
/*
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* Copyright (c) 2018-2021, 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/PerformanceEventBuffer.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$perf_event(int type, FlatPtr arg1, FlatPtr arg2)
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{
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auto events_buffer = current_perf_events_buffer();
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if (!events_buffer) {
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if (!create_perf_events_buffer_if_needed())
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return ENOMEM;
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events_buffer = perf_events();
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}
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return events_buffer->append(type, arg1, arg2, nullptr);
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}
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}
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