89 lines
1.3 KiB
C
89 lines
1.3 KiB
C
#include <stdint.h>
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#include <tianole/arch.h>
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#include <tianole/early_log.h>
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static int early_log_ready;
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void early_log_init(void)
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{
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if (early_log_ready != 0) {
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return;
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}
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arch_early_log_init();
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early_log_ready = 1;
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}
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void early_log_putc(char ch)
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{
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if (early_log_ready == 0) {
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early_log_init();
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}
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arch_early_log_putc(ch);
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}
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void early_log_puts(const char *text)
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{
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if (text == 0) {
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return;
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}
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while (*text != '\0') {
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if (*text == '\n') {
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early_log_putc('\r');
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}
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early_log_putc(*text++);
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}
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}
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static void early_log_hex_digit(uint8_t digit)
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{
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if (digit < 10) {
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early_log_putc((char)('0' + digit));
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return;
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}
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early_log_putc((char)('a' + digit - 10));
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}
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void early_log_u64_hex(uint64_t value)
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{
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int shift;
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early_log_puts("0x");
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for (shift = 60; shift >= 0; shift -= 4) {
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early_log_hex_digit((uint8_t)((value >> shift) & 0x0f));
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}
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}
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void early_log_u64_decimal(uint64_t value)
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{
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char digits[20];
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uint32_t index = 0;
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if (value == 0) {
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early_log_putc('0');
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return;
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}
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while (value != 0) {
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digits[index++] = (char)('0' + (value % 10));
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value /= 10;
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}
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while (index != 0) {
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early_log_putc(digits[--index]);
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}
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}
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void panic(const char *message)
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{
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early_log_puts("panic: ");
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early_log_puts(message);
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early_log_puts("\n");
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arch_halt_forever();
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}
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