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/*
* Copyright (C) 2025 Danny Holman <dholman@gymli.org>
*
* This file is part of BoxOS, a free and open-source Unix-like operating
* system.
*
* BoxOS is free software; you can redistribute it and/or modify under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* BoxOS is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* BoxOS; if not, see <https://www.gnu.org/licenses/>.
*/
#include <sys/panic.h>
#include <sys/kprintf.h>
#include <sys/spinlock.h>
#include <sys/asm.h>
#include <stdint.h>
#include <stddef.h>
static struct spinlock panic_lock = {0};
static int panicked = 0;
void walk_stack(uintptr_t *addrs, size_t n);
void stack_trace(void) {
kprintf("PRINTING STACK TRACE\n");
uintptr_t strace[32];
walk_stack(strace, 32);
for (int i = 0; i < 32; i++) {
if (strace[i] == 0)
break;
kprintf("#%d: %x\n", i, strace[i]);
}
}
void panic(const char *str) {
disable_ints();
spin_lock(&panic_lock);
panicked = 1;
spin_unlock(&panic_lock);
kprintf("KERNEL PANIC - NOT SYNCING: %s\n", str);
stack_trace();
while (1);
}
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