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

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//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: How NOT to panic 101 //
//----------------------------------------------------------------------------//
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#include <kaleid.h>
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//
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// Failed assert() handler
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//
noreturn void __assert_handler(const char *msg,
const char *file,
int line,
const char *func)
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{
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DisableIRQs();
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(void)file; (void)line; (void)func;
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// XXX sprintf() to create a proper panicstr
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StartPanic(msg);
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}
//
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// Your best boy panic()
// This is CPU local...
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//
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noreturn void StartPanic(const char *str)
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{
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DisableIRQs();
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// This should be made atomic
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SetKernState(KSTATE_PANIC);
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if (GetCurProc()) __CurProc[GetCurCPU()] = NULL;
if (GetStdOut() == NULL) CrashSystem();
GetStdOut()->ClearTermUnlocked(GetStdOut());
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if (str == NULL) {
str = "(no message given)";
}
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if (GetPanicStr()) {
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GetStdOut()->PrintOnTermUnlocked(GetStdOut(), "\nDouble panic!\n");
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HaltCPU();
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}
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_SetPanicStr(str);
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GetStdOut()->PrintOnTermUnlocked(GetStdOut(), "PANIC! - ");
GetStdOut()->PrintOnTermUnlocked(GetStdOut(), str);
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HaltCPU();
}
//
// Oh well
//
noreturn void CrashSystem(void)
{
DisableIRQs();
HaltCPU();
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}