os-k/kaleid/kernel/ke/panic.c

70 lines
1.7 KiB
C
Raw Normal View History

2018-12-24 22:38:14 +01:00
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: How NOT to panic 101 //
//----------------------------------------------------------------------------//
2018-12-30 22:21:19 +01:00
#define _UNLOCKED_IO
2019-01-14 14:31:49 +01:00
#include <kaleid.h>
2018-12-24 22:38:14 +01:00
//
2019-01-14 14:31:49 +01:00
// Failed assert() handler
2018-12-24 22:38:14 +01:00
//
2018-12-31 15:08:56 +01:00
noreturn void _assert_handler(const char *msg,
2019-01-01 13:09:57 +01:00
const char *file,
int line,
const char *func)
2018-12-24 22:38:14 +01:00
{
2019-01-14 14:31:49 +01:00
DisableIRQs();
2018-12-24 22:38:14 +01:00
(void)file; (void)line; (void)func;
2019-01-14 14:31:49 +01:00
2018-12-24 22:38:14 +01:00
// XXX sprintf() to create a proper panicstr
2019-01-01 13:09:57 +01:00
StartPanic(msg);
2018-12-24 22:38:14 +01:00
}
//
2019-01-14 14:31:49 +01:00
// Your best boy panic()
// This is CPU local...
2018-12-24 22:38:14 +01:00
//
2019-01-14 14:31:49 +01:00
noreturn void StartPanic(const char *str)
2018-12-24 22:38:14 +01:00
{
2019-01-14 14:31:49 +01:00
DisableIRQs();
2018-12-24 22:38:14 +01:00
2019-01-01 13:09:57 +01:00
SetKernState(KSTATE_PANIC);
2018-12-29 23:51:00 +01:00
2019-01-14 14:31:49 +01:00
if (GetCurProc()) __CurProc[GetCurCPU()] = NULL;
if (GetStdOut() == NULL) CrashSystem();
GetStdOut()->ClearTermUnlocked(GetStdOut());
2018-12-24 22:38:14 +01:00
if (str == NULL) {
str = "(no message given)";
}
2019-01-14 14:31:49 +01:00
2019-01-01 13:09:57 +01:00
if (GetPanicStr()) {
2019-01-14 14:31:49 +01:00
GetStdOut()->PrintOnTermUnlocked(GetStdOut(), "double panic!\n");
2019-01-01 13:09:57 +01:00
HaltCPU();
2018-12-24 22:38:14 +01:00
}
2019-01-01 13:09:57 +01:00
SetPanicStr(str);
2018-12-24 22:38:14 +01:00
2019-01-14 14:31:49 +01:00
GetStdOut()->PrintOnTermUnlocked(GetStdOut(), "PANIC! - ");
GetStdOut()->PrintOnTermUnlocked(GetStdOut(), str);
2018-12-24 22:38:14 +01:00
2019-01-14 14:31:49 +01:00
HaltCPU();
}
//
// Oh well
//
noreturn void CrashSystem(void)
{
DisableIRQs();
HaltCPU();
2018-12-24 22:38:14 +01:00
}