common/log_console.c

   1 /*
   2  * Logging support
   3  *
   4  * Copyright (c) 2017 Google, Inc
   5  * Written by Simon Glass <sjg@chromium.org>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <log.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 static int log_console_emit(struct log_device *ldev, struct log_rec *rec)
  16 {
  17         int fmt = gd->log_fmt;
  18
  19         /*
  20          * The output format is designed to give someone a fighting chance of
  21          * figuring out which field is which:
  22          *    - level is in CAPS
  23          *    - cat is lower case and ends with comma
  24          *    - file normally has a .c extension and ends with a colon
  25          *    - line is integer and ends with a -
  26          *    - function is an identifier and ends with ()
  27          *    - message has a space before it unless it is on its own
  28          */
  29         if (fmt & (1 << LOGF_LEVEL))
  30                 printf("%s.", log_get_level_name(rec->level));
  31         if (fmt & (1 << LOGF_CAT))
  32                 printf("%s,", log_get_cat_name(rec->cat));
  33         if (fmt & (1 << LOGF_FILE))
  34                 printf("%s:", rec->file);
  35         if (fmt & (1 << LOGF_LINE))
  36                 printf("%d-", rec->line);
  37         if (fmt & (1 << LOGF_FUNC))
  38                 printf("%s()", rec->func);
  39         if (fmt & (1 << LOGF_MSG))
  40                 printf("%s%s", fmt != (1 << LOGF_MSG) ? " " : "", rec->msg);
  41
  42         return 0;
  43 }
  44
  45 LOG_DRIVER(console) = {
  46         .name   = "console",
  47         .emit   = log_console_emit,
  48 };