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Handle panic through kvprintf instead

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Imbus 2025-09-02 02:37:00 +02:00
parent e30cc4c3d0
commit 5596841482
3 changed files with 13 additions and 6 deletions
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7
kern/libkern/panic.c
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@ -7,12 +7,11 @@
volatile int panicked = false;
__attribute__((visibility("hidden")))
void __panic(const char *restrict fmt, ...) {
__attribute__((visibility("hidden"))) void __panic(const char *restrict fmt, ...) {
va_list ap;
va_start(ap, fmt);
(void)mini_vpprintf(stdout_puts, NULL, fmt, ap);
kvprintf(fmt, ap);
va_end(ap);
panicked = true;
while (true) asm volatile("wfi");
for (;;) asm volatile("wfi");
}

8
kern/libkern/stdio.c
View file

@ -1,5 +1,6 @@
#include <mini-printf.h>
#include <stddef.h>
#include <stdio.h>
#include <uart.h>
/** Helper routine to put characters into our uart device */
@ -21,7 +22,12 @@ static int stdout_puts(char *s, int len, void *unused) {
int kprintf(const char *restrict fmt, ...) {
va_list ap;
va_start(ap, fmt);
int ret = mini_vpprintf(stdout_puts, NULL, fmt, ap);
int ret = kvprintf(fmt, &ap);
va_end(ap);
return ret;
}
int kvprintf(const char *fmt, va_list ap) {
int ret = mini_vpprintf(stdout_puts, NULL, fmt, ap);
return ret;
}

4
kern/libkern/stdio.h
View file

@ -1,8 +1,10 @@
#ifndef STDIO_H
#define STDIO_H
int stdout_puts(char *s, int len, void *unused);
#include <stdarg.h>
int kprintf(const char *restrict format, ...);
int kvprintf(const char *fmt, va_list ap);
// int fprintf(FILE *restrict stream, const char *restrict format, ...);
// int dprintf(int fd, const char *restrict format, ...);