67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
#include <utsm/log.h>
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/* ---- 内存日志缓冲区（实机启动日志持久化） ----
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* 默认启用捕获：所有日志同时写串口和内存缓冲。
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* 块设备就绪后由 disk_log_flush() 把缓冲区写入磁盘原始扇区。 */
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#define LOG_BUF_SIZE 524288u /* 512KB, 覆盖 LBA 2-1000 (999 扇区 ~500KB) */
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static char g_log_buf[LOG_BUF_SIZE];
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static u32 g_log_len = 0;
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static int g_log_capture_on = 1;
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void log_capture_enable(int enable) {
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g_log_capture_on = enable;
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}
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const char *log_get_buffer(void) {
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return g_log_buf;
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}
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u32 log_get_length(void) {
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return g_log_len;
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}
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static void log_emit(const char *s) {
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serial_write(s);
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if (g_log_capture_on && s) {
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while (*s) {
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if (g_log_len < LOG_BUF_SIZE) {
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g_log_buf[g_log_len++] = *s;
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}
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s++;
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}
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}
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}
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static void log_line(const char *level, const char *msg) {
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log_emit(level);
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log_emit(" ");
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log_emit(msg);
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log_emit("\n");
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}
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void log_info(const char *msg) {
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log_line("[INFO]", msg);
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}
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void log_warn(const char *msg) {
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log_line("[WARN]", msg);
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}
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void log_error(const char *msg) {
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log_line("[ERR ]", msg);
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}
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void log_hex64(const char *prefix, u64 value) {
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static const char hex[] = "0123456789abcdef";
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char buf[19];
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buf[0] = '0';
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buf[1] = 'x';
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for (int i = 0; i < 16; i++) {
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buf[2 + i] = hex[(value >> ((15 - i) * 4)) & 0xf];
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}
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buf[18] = 0;
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log_emit(prefix);
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log_emit(buf);
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log_emit("\n");
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}
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