log.c
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/*
* Copyright (c) 2017 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <dm.h>
#include <log.h>
static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
static int do_log_level(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
if (argc > 1)
gd->default_log_level = simple_strtol(argv[1], NULL, 10);
else
printf("Default log level: %d\n", gd->default_log_level);
return 0;
}
static int do_log_format(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
int i;
if (argc > 1) {
const char *str = argv[1];
if (!strcmp(str, "default")) {
gd->log_fmt = LOGF_DEFAULT;
} else if (!strcmp(str, "all")) {
gd->log_fmt = LOGF_ALL;
} else {
gd->log_fmt = 0;
for (; *str; str++) {
char *ptr = strchr(log_fmt_chars, *str);
if (!ptr) {
printf("Invalid log char '%c'\n", *str);
return CMD_RET_FAILURE;
}
gd->log_fmt |= 1 << (ptr - log_fmt_chars);
}
}
} else {
printf("Log format: ");
for (i = 0; i < LOGF_COUNT; i++) {
if (gd->log_fmt & (1 << i))
printf("%c", log_fmt_chars[i]);
}
printf("\n");
}
return 0;
}
static int do_log_rec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
enum log_category_t cat;
enum log_level_t level;
const char *file;
uint line;
const char *func;
const char *msg;
char *end;
if (argc < 7)
return CMD_RET_USAGE;
cat = log_get_cat_by_name(argv[1]);
level = simple_strtoul(argv[2], &end, 10);
if (end == argv[2]) {
level = log_get_level_by_name(argv[2]);
if (level == LOGL_NONE) {
printf("Invalid log level '%s'\n", argv[2]);
return CMD_RET_USAGE;
}
}
if (level >= LOGL_MAX) {
printf("Invalid log level %u\n", level);
return CMD_RET_USAGE;
}
file = argv[3];
line = simple_strtoul(argv[4], NULL, 10);
func = argv[5];
msg = argv[6];
if (_log(cat, level, file, line, func, "%s\n", msg))
return CMD_RET_FAILURE;
return 0;
}
static cmd_tbl_t log_sub[] = {
U_BOOT_CMD_MKENT(level, CONFIG_SYS_MAXARGS, 1, do_log_level, "", ""),
#ifdef CONFIG_LOG_TEST
U_BOOT_CMD_MKENT(test, 2, 1, do_log_test, "", ""),
#endif
U_BOOT_CMD_MKENT(format, CONFIG_SYS_MAXARGS, 1, do_log_format, "", ""),
U_BOOT_CMD_MKENT(rec, CONFIG_SYS_MAXARGS, 1, do_log_rec, "", ""),
};
static int do_log(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
cmd_tbl_t *cp;
if (argc < 2)
return CMD_RET_USAGE;
/* drop initial "log" arg */
argc--;
argv++;
cp = find_cmd_tbl(argv[0], log_sub, ARRAY_SIZE(log_sub));
if (cp)
return cp->cmd(cmdtp, flag, argc, argv);
return CMD_RET_USAGE;
}
#ifdef CONFIG_SYS_LONGHELP
static char log_help_text[] =
"level - get/set log level\n"
#ifdef CONFIG_LOG_TEST
"log test - run log tests\n"
#endif
"log format <fmt> - set log output format. <fmt> is a string where\n"
"\teach letter indicates something that should be displayed:\n"
"\tc=category, l=level, F=file, L=line number, f=function, m=msg\n"
"\tor 'default', equivalent to 'fm', or 'all' for all\n"
"log rec <category> <level> <file> <line> <func> <message> - "
"output a log record"
;
#endif
U_BOOT_CMD(
log, CONFIG_SYS_MAXARGS, 1, do_log,
"log system", log_help_text
);