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cbbbc38f27
Previously it would only print the backtrace to serial, which would be inaccessible if you don't have serial setup.
35 lines
976 B
C++
35 lines
976 B
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/x86/Processor.h>
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#include <Kernel/CommandLine.h>
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#include <Kernel/IO.h>
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#include <Kernel/KSyms.h>
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#include <Kernel/Panic.h>
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namespace Kernel {
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[[noreturn]] static void __shutdown()
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{
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// Note: This will invoke QEMU Shutdown, but for other platforms (or emulators),
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// this has no effect on the system, so we still need to halt afterwards.
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// We also try the Bochs/Old QEMU shutdown method, if the first didn't work.
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IO::out16(0x604, 0x2000);
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IO::out16(0xb004, 0x2000);
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Processor::halt();
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}
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void __panic(const char* file, unsigned int line, const char* function)
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{
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critical_dmesgln("at {}:{} in {}", file, line, function);
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dump_backtrace(PrintToScreen::Yes);
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if (kernel_command_line().boot_mode() == BootMode::SelfTest)
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__shutdown();
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else
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Processor::halt();
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}
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}
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