RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 06:47:34 +00:00
Code Issues Activity Actions

Kernel: Make handle_crash available to aarch64

Browse source
This commit is contained in:
James Mintram 2022-04-02 23:55:20 +01:00 • committed by Brian Gianforcaro
parent d3b6201b40
commit 6299a69253
8 changed files with 75 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

45
Kernel/Arch/x86/common/CrashHandler.cpp Normal file
View file

@ -0,0 +1,45 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/CPU.h>
#include <Kernel/Arch/RegisterState.h>
#include <Kernel/Panic.h>
#include <Kernel/Process.h>
#include <Kernel/Thread.h>
namespace Kernel {
void handle_crash(Kernel::RegisterState const& regs, char const* description, int signal, bool out_of_memory)
{
auto* current_thread = Thread::current();
if (!current_thread)
PANIC("{} with !Thread::current()", description);
auto crashed_in_kernel = (regs.cs & 3) == 0;
if (!crashed_in_kernel && current_thread->has_signal_handler(signal) && !current_thread->should_ignore_signal(signal) && !current_thread->is_signal_masked(signal)) {
current_thread->send_urgent_signal_to_self(signal);
return;
}
auto& process = current_thread->process();
// If a process crashed while inspecting another process,
// make sure we switch back to the right page tables.
Memory::MemoryManager::enter_process_address_space(process);
dmesgln("CRASH: CPU #{} {} in ring {}", Processor::current_id(), description, (regs.cs & 3));
dump_registers(regs);
if (crashed_in_kernel) {
process.address_space().dump_regions();
PANIC("Crash in ring 0");
}
process.crash(signal, regs.ip(), out_of_memory);
}
}