/* Copyright (C) 2008  Emmanuel Varoquaux

   This file is part of XOS.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that 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 this program.  If not, see <http://www.gnu.org/licenses/>. */

#include <printk.h>
#include <asm.h>
#include <sprintf.h>

void __attribute__ ((noreturn)) die()
{
  cli();
  while (1)
    hlt();
}

/* Cette fonction doit etre appelee lorsque l'etat du systeme devient
 * incoherent. Elle affiche un bref message decrivant la situation.
 *
 * Un kernel panic correspond a un bug de programmation, et ne devrait jamais
 * se produire. */
void __attribute__ ((noreturn)) panic(const char *msg)
{
  printk("Kernel panic: %s", msg);
  die();
}

void __attribute__ ((noreturn)) __assert_fail(const char *expr, const char *file, int line, const char *func)
{
  char buf[256];

  snprintf(buf, sizeof buf, "%s:%d: %s: Assertion `%s' failed.", file, line, func, expr);
  panic(buf);
}