xref: /openbmc/u-boot/common/log_console.c (revision 63e22517)
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 };
48