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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2017 Google, Inc
- * Written by Simon Glass <sjg@chromium.org>
- */
- #include <common.h>
- #include <command.h>
- #include <dm.h>
- #include <getopt.h>
- #include <log.h>
- #include <malloc.h>
- #include <asm/global_data.h>
- static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
- static enum log_level_t parse_log_level(char *const arg)
- {
- enum log_level_t ret;
- ulong level;
- if (!strict_strtoul(arg, 10, &level)) {
- if (level > _LOG_MAX_LEVEL) {
- printf("Only log levels <= %d are supported\n",
- _LOG_MAX_LEVEL);
- return LOGL_NONE;
- }
- return level;
- }
- ret = log_get_level_by_name(arg);
- if (ret == LOGL_NONE)
- printf("Unknown log level \"%s\"\n", arg);
- return ret;
- }
- static int do_log_level(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- enum log_level_t log_level;
- if (argc > 1) {
- log_level = parse_log_level(argv[1]);
- if (log_level == LOGL_NONE)
- return CMD_RET_FAILURE;
- gd->default_log_level = log_level;
- } else {
- for (log_level = LOGL_FIRST; log_level <= _LOG_MAX_LEVEL;
- log_level++)
- printf("%s%s\n", log_get_level_name(log_level),
- log_level == gd->default_log_level ?
- " (default)" : "");
- }
- return CMD_RET_SUCCESS;
- }
- static int do_log_categories(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- enum log_category_t cat;
- const char *name;
- for (cat = LOGC_FIRST; cat < LOGC_COUNT; cat++) {
- name = log_get_cat_name(cat);
- /*
- * Invalid category names (e.g. <invalid> or <missing>) begin
- * with '<'.
- */
- if (name[0] == '<')
- continue;
- printf("%s\n", name);
- }
- return CMD_RET_SUCCESS;
- }
- static int do_log_drivers(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- struct log_device *ldev;
- list_for_each_entry(ldev, &gd->log_head, sibling_node)
- printf("%s\n", ldev->drv->name);
- return CMD_RET_SUCCESS;
- }
- static int do_log_filter_list(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- int opt;
- const char *drv_name = "console";
- struct getopt_state gs;
- struct log_filter *filt;
- struct log_device *ldev;
- getopt_init_state(&gs);
- while ((opt = getopt(&gs, argc, argv, "d:")) > 0) {
- switch (opt) {
- case 'd':
- drv_name = gs.arg;
- break;
- default:
- return CMD_RET_USAGE;
- }
- }
- if (gs.index != argc)
- return CMD_RET_USAGE;
- ldev = log_device_find_by_name(drv_name);
- if (!ldev) {
- printf("Could not find log device for \"%s\"\n", drv_name);
- return CMD_RET_FAILURE;
- }
- /* <3> < 6 > <2+1 + 7 > < 16 > < unbounded... */
- printf("num policy level categories files\n");
- list_for_each_entry(filt, &ldev->filter_head, sibling_node) {
- printf("%3d %6.6s %s %-7.7s ", filt->filter_num,
- filt->flags & LOGFF_DENY ? "deny" : "allow",
- filt->flags & LOGFF_LEVEL_MIN ? ">=" : "<=",
- log_get_level_name(filt->level));
- if (filt->flags & LOGFF_HAS_CAT) {
- int i;
- if (filt->cat_list[0] != LOGC_END)
- printf("%16.16s %s\n",
- log_get_cat_name(filt->cat_list[0]),
- filt->file_list ? filt->file_list : "");
- for (i = 1; i < LOGF_MAX_CATEGORIES &&
- filt->cat_list[i] != LOGC_END; i++)
- printf("%21c %16.16s\n", ' ',
- log_get_cat_name(filt->cat_list[i]));
- } else {
- printf("%16c %s\n", ' ',
- filt->file_list ? filt->file_list : "");
- }
- }
- return CMD_RET_SUCCESS;
- }
- static int do_log_filter_add(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- bool level_set = false;
- bool print_num = false;
- bool type_set = false;
- char *file_list = NULL;
- const char *drv_name = "console";
- int opt, err;
- int cat_count = 0;
- int flags = 0;
- enum log_category_t cat_list[LOGF_MAX_CATEGORIES + 1];
- enum log_level_t level = LOGL_MAX;
- struct getopt_state gs;
- getopt_init_state(&gs);
- while ((opt = getopt(&gs, argc, argv, "Ac:d:Df:l:L:p")) > 0) {
- switch (opt) {
- case 'A':
- #define do_type() do { \
- if (type_set) { \
- printf("Allow or deny set twice\n"); \
- return CMD_RET_USAGE; \
- } \
- type_set = true; \
- } while (0)
- do_type();
- break;
- case 'c': {
- enum log_category_t cat;
- if (cat_count >= LOGF_MAX_CATEGORIES) {
- printf("Too many categories\n");
- return CMD_RET_FAILURE;
- }
- cat = log_get_cat_by_name(gs.arg);
- if (cat == LOGC_NONE) {
- printf("Unknown category \"%s\"\n", gs.arg);
- return CMD_RET_FAILURE;
- }
- cat_list[cat_count++] = cat;
- break;
- }
- case 'd':
- drv_name = gs.arg;
- break;
- case 'D':
- do_type();
- flags |= LOGFF_DENY;
- break;
- case 'f':
- file_list = gs.arg;
- break;
- case 'l':
- #define do_level() do { \
- if (level_set) { \
- printf("Log level set twice\n"); \
- return CMD_RET_USAGE; \
- } \
- level = parse_log_level(gs.arg); \
- if (level == LOGL_NONE) \
- return CMD_RET_FAILURE; \
- level_set = true; \
- } while (0)
- do_level();
- break;
- case 'L':
- do_level();
- flags |= LOGFF_LEVEL_MIN;
- break;
- case 'p':
- print_num = true;
- break;
- default:
- return CMD_RET_USAGE;
- }
- }
- if (gs.index != argc)
- return CMD_RET_USAGE;
- cat_list[cat_count] = LOGC_END;
- err = log_add_filter_flags(drv_name, cat_count ? cat_list : NULL, level,
- file_list, flags);
- if (err < 0) {
- printf("Could not add filter (err = %d)\n", err);
- return CMD_RET_FAILURE;
- } else if (print_num) {
- printf("%d\n", err);
- }
- return CMD_RET_SUCCESS;
- }
- static int do_log_filter_remove(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- bool all = false;
- int opt, err;
- ulong filter_num;
- const char *drv_name = "console";
- struct getopt_state gs;
- getopt_init_state(&gs);
- while ((opt = getopt(&gs, argc, argv, "ad:")) > 0) {
- switch (opt) {
- case 'a':
- all = true;
- break;
- case 'd':
- drv_name = gs.arg;
- break;
- default:
- return CMD_RET_USAGE;
- }
- }
- if (all) {
- struct log_filter *filt, *tmp_filt;
- struct log_device *ldev;
- if (gs.index != argc)
- return CMD_RET_USAGE;
- ldev = log_device_find_by_name(drv_name);
- if (!ldev) {
- printf("Could not find log device for \"%s\"\n",
- drv_name);
- return CMD_RET_FAILURE;
- }
- list_for_each_entry_safe(filt, tmp_filt, &ldev->filter_head,
- sibling_node) {
- list_del(&filt->sibling_node);
- free(filt);
- }
- } else {
- if (gs.index + 1 != argc)
- return CMD_RET_USAGE;
- if (strict_strtoul(argv[gs.index], 10, &filter_num)) {
- printf("Invalid filter number \"%s\"\n", argv[gs.index]);
- return CMD_RET_FAILURE;
- }
- err = log_remove_filter(drv_name, filter_num);
- if (err) {
- printf("Could not remove filter (err = %d)\n", err);
- return CMD_RET_FAILURE;
- }
- }
- return CMD_RET_SUCCESS;
- }
- static int do_log_format(struct cmd_tbl *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 = log_get_default_format();
- } 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(struct cmd_tbl *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 = dectoul(argv[2], &end);
- 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 = dectoul(argv[4], NULL);
- func = argv[5];
- msg = argv[6];
- if (_log(cat, level, file, line, func, "%s\n", msg))
- return CMD_RET_FAILURE;
- return 0;
- }
- #ifdef CONFIG_SYS_LONGHELP
- static char log_help_text[] =
- "level [<level>] - get/set log level\n"
- "categories - list log categories\n"
- "drivers - list log drivers\n"
- "log filter-list [OPTIONS] - list all filters for a log driver\n"
- "\t-d <driver> - Specify the log driver to list filters from; defaults\n"
- "\t to console\n"
- "log filter-add [OPTIONS] - add a new filter to a driver\n"
- "\t-A - Allow messages matching this filter; mutually exclusive with -D\n"
- "\t This is the default.\n"
- "\t-c <category> - Category to match; may be specified multiple times\n"
- "\t-d <driver> - Specify the log driver to add the filter to; defaults\n"
- "\t to console\n"
- "\t-D - Deny messages matching this filter; mutually exclusive with -A\n"
- "\t-f <files_list> - A comma-separated list of files to match\n"
- "\t-l <level> - Match log levels less than or equal to <level>;\n"
- "\t mutually-exclusive with -L\n"
- "\t-L <level> - Match log levels greather than or equal to <level>;\n"
- "\t mutually-exclusive with -l\n"
- "\t-p - Print the filter number on success\n"
- "log filter-remove [OPTIONS] [<num>] - Remove filter number <num>\n"
- "\t-a - Remove ALL filters\n"
- "\t-d <driver> - Specify the log driver to remove the filter from;\n"
- "\t defaults to console\n"
- "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', or 'all' for all\n"
- "log rec <category> <level> <file> <line> <func> <message> - "
- "output a log record"
- ;
- #endif
- U_BOOT_CMD_WITH_SUBCMDS(log, "log system", log_help_text,
- U_BOOT_SUBCMD_MKENT(level, 2, 1, do_log_level),
- U_BOOT_SUBCMD_MKENT(categories, 1, 1, do_log_categories),
- U_BOOT_SUBCMD_MKENT(drivers, 1, 1, do_log_drivers),
- U_BOOT_SUBCMD_MKENT(filter-list, 3, 1, do_log_filter_list),
- U_BOOT_SUBCMD_MKENT(filter-add, CONFIG_SYS_MAXARGS, 1,
- do_log_filter_add),
- U_BOOT_SUBCMD_MKENT(filter-remove, 4, 1, do_log_filter_remove),
- U_BOOT_SUBCMD_MKENT(format, 2, 1, do_log_format),
- U_BOOT_SUBCMD_MKENT(rec, 7, 1, do_log_rec),
- );
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