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Kernel: Add stubs for missing x86_64 functionality

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This adds just enough stubs to make the kernel compile on x86_64. Obviously
it won't do anything useful - in fact it won't even attempt to boot because
Multiboot doesn't support ELF64 binaries - but it gets those compiler errors
out of the way so more progress can be made getting all the missing
functionality in place.
This commit is contained in:
Gunnar Beutner 2021-06-23 21:54:41 +02:00 • committed by Andreas Kling
parent f2eb759901
commit 38fca26f54
21 changed files with 295 additions and 40 deletions
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29
Kernel/Arch/x86/i386/CPU.cpp
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@ -101,32 +101,3 @@ extern "C" u32 do_init_context(Thread* thread, u32 flags)
}
}
void __assertion_failed(const char* msg, const char* file, unsigned line, const char* func)
{
asm volatile("cli");
critical_dmesgln("ASSERTION FAILED: {}", msg);
critical_dmesgln("{}:{} in {}", file, line, func);
abort();
}
[[noreturn]] void abort()
{
// Switch back to the current process's page tables if there are any.
// Otherwise stack walking will be a disaster.
auto process = Process::current();
if (process)
MM.enter_process_paging_scope(*process);
Kernel::dump_backtrace();
Processor::halt();
abort();
}
[[noreturn]] void _abort()
{
asm volatile("ud2");
__builtin_unreachable();
}