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49 rivejä
957 B
49 rivejä
957 B
#include <defs.h>
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#include <stdio.h>
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#include <intr.h>
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#include <kmonitor.h>
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static bool is_panic = 0;
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/* *
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* __panic - __panic is called on unresolvable fatal errors. it prints
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* "panic: 'message'", and then enters the kernel monitor.
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* */
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void
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__panic(const char *file, int line, const char *fmt, ...) {
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if (is_panic) {
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goto panic_dead;
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}
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is_panic = 1;
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// print the 'message'
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va_list ap;
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va_start(ap, fmt);
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cprintf("kernel panic at %s:%d:\n ", file, line);
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vcprintf(fmt, ap);
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cprintf("\n");
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va_end(ap);
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panic_dead:
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intr_disable();
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while (1) {
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kmonitor(NULL);
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}
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}
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/* __warn - like panic, but don't */
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void
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__warn(const char *file, int line, const char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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cprintf("kernel warning at %s:%d:\n ", file, line);
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vcprintf(fmt, ap);
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cprintf("\n");
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va_end(ap);
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}
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bool
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is_kernel_panic(void) {
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return is_panic;
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}
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