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https://github.com/AsahiLinux/u-boot
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ad0e503991
Add a 'log format' command which can display or change the log output format. This is useful for changing how much information is displayed. The ordering of the fields is fixed. Signed-off-by: Simon Glass <sjg@chromium.org>
104 lines
2.2 KiB
C
104 lines
2.2 KiB
C
/*
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* Copyright (c) 2017 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <log.h>
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static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
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static int do_log_level(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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if (argc > 1)
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gd->default_log_level = simple_strtol(argv[1], NULL, 10);
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else
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printf("Default log level: %d\n", gd->default_log_level);
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return 0;
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}
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static int do_log_format(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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int i;
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if (argc > 1) {
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const char *str = argv[1];
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if (!strcmp(str, "default")) {
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gd->log_fmt = LOGF_DEFAULT;
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} else if (!strcmp(str, "all")) {
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gd->log_fmt = LOGF_ALL;
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} else {
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gd->log_fmt = 0;
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for (; *str; str++) {
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char *ptr = strchr(log_fmt_chars, *str);
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if (!ptr) {
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printf("Invalid log char '%c'\n", *str);
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return CMD_RET_FAILURE;
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}
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gd->log_fmt |= 1 << (ptr - log_fmt_chars);
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}
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}
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} else {
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printf("Log format: ");
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for (i = 0; i < LOGF_COUNT; i++) {
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if (gd->log_fmt & (1 << i))
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printf("%c", log_fmt_chars[i]);
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}
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printf("\n");
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}
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return 0;
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}
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static cmd_tbl_t log_sub[] = {
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U_BOOT_CMD_MKENT(level, CONFIG_SYS_MAXARGS, 1, do_log_level, "", ""),
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#ifdef CONFIG_LOG_TEST
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U_BOOT_CMD_MKENT(test, 2, 1, do_log_test, "", ""),
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#endif
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U_BOOT_CMD_MKENT(format, CONFIG_SYS_MAXARGS, 1, do_log_format, "", ""),
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};
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static int do_log(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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cmd_tbl_t *cp;
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if (argc < 2)
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return CMD_RET_USAGE;
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/* drop initial "log" arg */
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argc--;
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argv++;
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cp = find_cmd_tbl(argv[0], log_sub, ARRAY_SIZE(log_sub));
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if (cp)
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return cp->cmd(cmdtp, flag, argc, argv);
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return CMD_RET_USAGE;
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}
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#ifdef CONFIG_SYS_LONGHELP
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static char log_help_text[] =
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"level - get/set log level\n"
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#ifdef CONFIG_LOG_TEST
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"log test - run log tests\n"
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#endif
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"log format <fmt> - set log output format. <fmt> is a string where\n"
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"\teach letter indicates something that should be displayed:\n"
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"\tc=category, l=level, F=file, L=line number, f=function, m=msg\n"
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"\tor 'default', equivalent to 'fm', or 'all' for all"
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;
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#endif
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U_BOOT_CMD(
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log, CONFIG_SYS_MAXARGS, 1, do_log,
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"log system", log_help_text
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);
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