common/log_console.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Logging support
   4  *
   5  * Copyright (c) 2017 Google, Inc
   6  * Written by Simon Glass <sjg@chromium.org>
   7  */
   8
   9 #include <common.h>
  10 #include <log.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 static int log_console_emit(struct log_device *ldev, struct log_rec *rec)
  15 {
  16         int fmt = gd->log_fmt;
  17
  18         /*
  19          * The output format is designed to give someone a fighting chance of
  20          * figuring out which field is which:
  21          *    - level is in CAPS
  22          *    - cat is lower case and ends with comma
  23          *    - file normally has a .c extension and ends with a colon
  24          *    - line is integer and ends with a -
  25          *    - function is an identifier and ends with ()
  26          *    - message has a space before it unless it is on its own
  27          */
  28         if (fmt & (1 << LOGF_LEVEL))
  29                 printf("%s.", log_get_level_name(rec->level));
  30         if (fmt & (1 << LOGF_CAT))
  31                 printf("%s,", log_get_cat_name(rec->cat));
  32         if (fmt & (1 << LOGF_FILE))
  33                 printf("%s:", rec->file);
  34         if (fmt & (1 << LOGF_LINE))
  35                 printf("%d-", rec->line);
  36         if (fmt & (1 << LOGF_FUNC))
  37                 printf("%s()", rec->func);
  38         if (fmt & (1 << LOGF_MSG))
  39                 printf("%s%s", fmt != (1 << LOGF_MSG) ? " " : "", rec->msg);
  40
  41         return 0;
  42 }
  43
  44 LOG_DRIVER(console) = {
  45         .name   = "console",
  46         .emit   = log_console_emit,
  47 };