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cf271183b4
This has several benefits: 1) We no longer just blindly derefence a null pointer in various places 2) We will get nicer runtime error messages if the current process does turn out to be null in the call location 3) GCC no longer complains about possible nullptr dereferences when compiling without KUBSAN
35 lines
829 B
C++
35 lines
829 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 <AK/Assertions.h>
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#include <Kernel/Arch/x86/CPU.h>
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#include <Kernel/Panic.h>
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#include <Kernel/Process.h>
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void __assertion_failed(const char* msg, const char* file, unsigned line, const char* func)
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{
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asm volatile("cli");
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critical_dmesgln("ASSERTION FAILED: {}", msg);
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critical_dmesgln("{}:{} in {}", file, line, func);
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abort();
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}
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[[noreturn]] void abort()
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{
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// Switch back to the current process's page tables if there are any.
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// Otherwise stack walking will be a disaster.
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if (Process::has_current())
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MM.enter_process_paging_scope(Process::current());
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PANIC("Aborted");
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}
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[[noreturn]] void _abort()
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{
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asm volatile("ud2");
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__builtin_unreachable();
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}
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