os-k/src/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/kernel/ke/panic.h>
#include <kaleid/kernel/ke/state.h>
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#define _UNLOCKED_IO
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#include <kaleid/kernel/io/terminal.h>
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//
// Panic message
//
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const char *__panicmsg = NULL;
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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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{
// not getting out of here
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DosDisableInterrupts();
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(void)file; (void)line; (void)func;
// XXX sprintf() to create a proper panicstr
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DosPanic(msg);
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}
//
// Your best boy panic()
//
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void DosPanic(const char *str)
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{
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DosDisableInterrupts();
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DosSetKernState(KSTATE_PANIC);
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DosClearTerm_Unlocked(stdout);
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if (str == NULL) {
str = "(no message given)";
}
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if (DosGetPanicStr()) {
DosPrintOnTerm_Unlocked(stdout, "double panic!\n");
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DosHaltCPU();
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}
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DosSetPanicStr(str);
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// we cannot lock anything when panicking
DosPrintOnTerm_Unlocked(stdout, "panic! - ");
DosPrintOnTerm_Unlocked(stdout, str);
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while (TRUE) {
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DosHaltCPU();
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}
}