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https://github.com/SerenityOS/serenity
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936500c0dd
Use `arch_specific_poweroff` directly instead of duplicating its
contents in Panic.cpp.
The current panic=shutdown RISC-V implementation sets the SBI
system reset reason to "System failure", so add a parameter with the
poweroff/reboot reason to arch_specific_poweroff.
This means that panic=shutdown now attempts to use the ARM PSCI,
since 6a21fcec38 forgot to add PSCI support to `__shutdown`.
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/*
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* Copyright (c) 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 <AK/Format.h>
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#include <Kernel/Arch/PowerState.h>
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#include <Kernel/Arch/Processor.h>
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#include <Kernel/Boot/CommandLine.h>
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#include <Kernel/KSyms.h>
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#include <Kernel/Library/Panic.h>
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#include <Kernel/Tasks/Thread.h>
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namespace Kernel {
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void __panic(char const* file, unsigned int line, char const* function)
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{
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// Avoid lock ranking checks on crashing paths, just try to get some debugging messages out.
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auto* thread = Thread::current();
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if (thread)
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thread->set_crashing();
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critical_dmesgln("at {}:{} in {}", file, line, function);
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dump_backtrace(PrintToScreen::Yes);
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if (!CommandLine::was_initialized())
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Processor::halt();
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switch (kernel_command_line().panic_mode()) {
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case PanicMode::Shutdown:
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arch_specific_poweroff(PowerOffOrRebootReason::SystemFailure);
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// Note: If we failed to invoke platform shutdown, we need to halt afterwards
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// to ensure no further execution on any CPU still happens.
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[[fallthrough]];
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case PanicMode::Halt:
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default:
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Processor::halt();
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}
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}
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}
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