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Kernel: Implement __panic() for the aarch64 Kernel

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Now that dump_backtrace() works, we can actually print a helpful
backtrace when the Kernel panics.
This commit is contained in:
Timon Kruiper 2022-05-03 01:39:47 +02:00 committed by Andreas Kling
parent e7cf591ec0
commit e81e1fa9c8
Notes: sideshowbarker 2024-07-17 11:21:24 +09:00 
Author: https://github.com/FireFox317
Commit: https://github.com/SerenityOS/serenity/commit/e81e1fa9c8
Pull-request: https://github.com/SerenityOS/serenity/pull/13895
Reviewed-by: https://github.com/nico
4 changed files with 26 additions and 10 deletions
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10
Kernel/Arch/aarch64/Dummy.cpp
View file

@ -24,16 +24,6 @@ READONLY_AFTER_INIT Thread* g_finalizer;
}
// Panic
namespace Kernel {
void __panic(char const*, unsigned int, char const*)
{
for (;;) { }
}
}
// Random
namespace Kernel {

23
Kernel/Arch/aarch64/Panic.cpp Normal file
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@ -0,0 +1,23 @@
/*
* Copyright (c) 2022, Timon Kruiper <timonkruiper@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/Processor.h>
#include <Kernel/KSyms.h>
#include <Kernel/Panic.h>
// FIXME: Merge the code in this file with Kernel/Panic.cpp once the proper abstractions are in place.
namespace Kernel {
void __panic(char const* file, unsigned int line, char const* function)
{
critical_dmesgln("at {}:{} in {}", file, line, function);
dump_backtrace(PrintToScreen::Yes);
Processor::halt();
}
}

1
Kernel/CMakeLists.txt
View file

@ -418,6 +418,7 @@ else()
Arch/aarch64/kprintf.cpp
Arch/aarch64/MainIdRegister.cpp
Arch/aarch64/PageDirectory.cpp
Arch/aarch64/Panic.cpp
Arch/aarch64/SafeMem.cpp
Arch/aarch64/ScopedCritical.cpp
Arch/aarch64/SmapDisabler.cpp

2
Kernel/Panic.h
View file

@ -6,6 +6,8 @@
#pragma once
#include <AK/Format.h>
namespace Kernel {
[[noreturn]] void __panic(char const* file, unsigned int line, char const* function);