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 <log.h>
10 #include <asm/global_data.h>
11
12 DECLARE_GLOBAL_DATA_PTR;
13
log_console_emit(struct log_device * ldev,struct log_rec * rec)14 static int log_console_emit(struct log_device *ldev, struct log_rec *rec)
15 {
16 int fmt = gd->log_fmt;
17 bool add_space = false;
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 (!(rec->flags & LOGRECF_CONT) && fmt != BIT(LOGF_MSG)) {
30 add_space = true;
31 if (fmt & BIT(LOGF_LEVEL))
32 printf("%s.", log_get_level_name(rec->level));
33 if (fmt & BIT(LOGF_CAT))
34 printf("%s,", log_get_cat_name(rec->cat));
35 if (fmt & BIT(LOGF_FILE))
36 printf("%s:", rec->file);
37 if (fmt & BIT(LOGF_LINE))
38 printf("%d-", rec->line);
39 if (fmt & BIT(LOGF_FUNC)) {
40 if (CONFIG_IS_ENABLED(USE_TINY_PRINTF)) {
41 printf("%s()", rec->func ?: "?");
42 } else {
43 printf("%*s()", CONFIG_LOGF_FUNC_PAD,
44 rec->func ?: "?");
45 }
46 }
47 }
48 if (fmt & BIT(LOGF_MSG))
49 printf("%s%s", add_space ? " " : "", rec->msg);
50
51 return 0;
52 }
53
54 LOG_DRIVER(console) = {
55 .name = "console",
56 .emit = log_console_emit,
57 .flags = LOGDF_ENABLE,
58 };
59