+// SPDX-License-Identifier: GPL-2.0+
/*
- * (C) Copyright 2002-2007
- * Detlev Zundel, DENX Software Engineering, dzu@denx.de.
- *
- * Code used from linux/kernel/printk.c
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- * Comments:
- *
- * After relocating the code, the environment variable "loglevel" is
- * copied to console_loglevel. The functionality is similar to the
- * handling in the Linux kernel, i.e. messages logged with a priority
- * less than console_loglevel are also output to stdout.
- *
- * If you want messages with the default level (e.g. POST messages) to
- * appear on stdout also, make sure the environment variable
- * "loglevel" is set at boot time to a number higher than
- * default_message_loglevel below.
- */
-
-/*
- * Logbuffer handling routines
+ * Copyright (c) 2017 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <command.h>
-#include <stdio_dev.h>
-#include <post.h>
-#include <logbuff.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* Local prototypes */
-static void logbuff_putc(struct stdio_dev *dev, const char c);
-static void logbuff_puts(struct stdio_dev *dev, const char *s);
-static int logbuff_printk(const char *line);
-
-static char buf[1024];
-
-/* This combination will not print messages with the default loglevel */
-static unsigned console_loglevel = 3;
-static unsigned default_message_loglevel = 4;
-static unsigned log_version = 1;
-#ifdef CONFIG_ALT_LB_ADDR
-static volatile logbuff_t *log;
-#else
-static logbuff_t *log;
-#endif
-static char *lbuf;
+#include <dm.h>
+#include <getopt.h>
+#include <log.h>
+#include <malloc.h>
+#include <asm/global_data.h>
-unsigned long __logbuffer_base(void)
-{
- return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
-}
-unsigned long logbuffer_base(void)
-__attribute__((weak, alias("__logbuffer_base")));
+static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
-void logbuff_init_ptrs(void)
+static enum log_level_t parse_log_level(char *const arg)
{
- unsigned long tag, post_word;
- char *s;
-
-#ifdef CONFIG_ALT_LB_ADDR
- log = (logbuff_t *)CONFIG_ALT_LH_ADDR;
- lbuf = (char *)CONFIG_ALT_LB_ADDR;
-#else
- log = (logbuff_t *)(logbuffer_base()) - 1;
- lbuf = (char *)log->buf;
-#endif
+ enum log_level_t ret;
+ ulong level;
- /* Set up log version */
- if ((s = getenv ("logversion")) != NULL)
- log_version = (int)simple_strtoul(s, NULL, 10);
-
- if (log_version == 2)
- tag = log->v2.tag;
- else
- tag = log->v1.tag;
- post_word = post_word_load();
-#ifdef CONFIG_POST
- /* The post routines have setup the word so we can simply test it */
- if (tag != LOGBUFF_MAGIC || (post_word & POST_COLDBOOT))
- logbuff_reset();
-#else
- /* No post routines, so we do our own checking */
- if (tag != LOGBUFF_MAGIC || post_word != LOGBUFF_MAGIC) {
- logbuff_reset ();
- post_word_store (LOGBUFF_MAGIC);
+ 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;
}
-#endif
- if (log_version == 2 && (long)log->v2.start > (long)log->v2.con)
- log->v2.start = log->v2.con;
- /* Initialize default loglevel if present */
- if ((s = getenv ("loglevel")) != NULL)
- console_loglevel = (int)simple_strtoul(s, NULL, 10);
-
- gd->flags |= GD_FLG_LOGINIT;
+ ret = log_get_level_by_name(arg);
+ if (ret == LOGL_NONE)
+ printf("Unknown log level \"%s\"\n", arg);
+ return ret;
}
-void logbuff_reset(void)
+static int do_log_level(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
-#ifndef CONFIG_ALT_LB_ADDR
- memset(log, 0, sizeof(logbuff_t));
-#endif
- if (log_version == 2) {
- log->v2.tag = LOGBUFF_MAGIC;
-#ifdef CONFIG_ALT_LB_ADDR
- log->v2.start = 0;
- log->v2.con = 0;
- log->v2.end = 0;
- log->v2.chars = 0;
-#endif
+ 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 {
- log->v1.tag = LOGBUFF_MAGIC;
-#ifdef CONFIG_ALT_LB_ADDR
- log->v1.dummy = 0;
- log->v1.start = 0;
- log->v1.size = 0;
- log->v1.chars = 0;
-#endif
+ 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;
}
-int drv_logbuff_init(void)
+static int do_log_categories(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
- struct stdio_dev logdev;
- int rc;
-
- /* Device initialization */
- memset (&logdev, 0, sizeof (logdev));
-
- strcpy (logdev.name, "logbuff");
- logdev.ext = 0; /* No extensions */
- logdev.flags = DEV_FLAGS_OUTPUT; /* Output only */
- logdev.putc = logbuff_putc; /* 'putc' function */
- logdev.puts = logbuff_puts; /* 'puts' function */
+ enum log_category_t cat;
+ const char *name;
- rc = stdio_register(&logdev);
+ 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 (rc == 0) ? 1 : rc;
+ return CMD_RET_SUCCESS;
}
-static void logbuff_putc(struct stdio_dev *dev, const char c)
+static int do_log_drivers(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
- char buf[2];
- buf[0] = c;
- buf[1] = '\0';
- logbuff_printk(buf);
-}
+ struct log_device *ldev;
-static void logbuff_puts(struct stdio_dev *dev, const char *s)
-{
- logbuff_printk (s);
+ list_for_each_entry(ldev, &gd->log_head, sibling_node)
+ printf("%s\n", ldev->drv->name);
+
+ return CMD_RET_SUCCESS;
}
-void logbuff_log(char *msg)
+static int do_log_filter_list(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
- if ((gd->flags & GD_FLG_LOGINIT)) {
- logbuff_printk(msg);
- } else {
- /*
- * Can happen only for pre-relocated errors as logging
- * at that stage should be disabled
- */
- puts (msg);
+ 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;
+ }
}
-}
-/*
- * Subroutine: do_log
- *
- * Description: Handler for 'log' command..
- *
- * Inputs: argv[1] contains the subcommand
- *
- * Return: None
- *
- */
-int do_log(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- struct stdio_dev *sdev = NULL;
- char *s;
- unsigned long i, start, size;
-
- if (strcmp(argv[1], "append") == 0) {
- /* Log concatenation of all arguments separated by spaces */
- for (i = 2; i < argc; i++) {
- logbuff_printk(argv[i]);
- logbuff_putc(sdev, (i < argc - 1) ? ' ' : '\n');
+ 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 0;
}
- switch (argc) {
+ return CMD_RET_SUCCESS;
+}
- case 2:
- if (strcmp(argv[1], "show") == 0) {
- if (log_version == 2) {
- start = log->v2.start;
- size = log->v2.end - log->v2.start;
- } else {
- start = log->v1.start;
- size = log->v1.size;
- }
- if (size > LOGBUFF_LEN)
- size = LOGBUFF_LEN;
- for (i = 0; i < size; i++) {
- s = lbuf + ((start + i) & LOGBUFF_MASK);
- putc(*s);
- }
- return 0;
- } else if (strcmp(argv[1], "reset") == 0) {
- logbuff_reset();
- return 0;
- } else if (strcmp(argv[1], "info") == 0) {
- printf("Logbuffer at %08lx\n", (unsigned long)lbuf);
- if (log_version == 2) {
- printf("log_start = %08lx\n",
- log->v2.start);
- printf("log_end = %08lx\n", log->v2.end);
- printf("log_con = %08lx\n", log->v2.con);
- printf("logged_chars = %08lx\n",
- log->v2.chars);
+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;
}
- else {
- printf("log_start = %08lx\n",
- log->v1.start);
- printf("log_size = %08lx\n",
- log->v1.size);
- printf("logged_chars = %08lx\n",
- log->v1.chars);
+
+ cat = log_get_cat_by_name(gs.arg);
+ if (cat == LOGC_NONE) {
+ printf("Unknown category \"%s\"\n", gs.arg);
+ return CMD_RET_FAILURE;
}
- return 0;
+
+ cat_list[cat_count++] = cat;
+ break;
}
- return CMD_RET_USAGE;
+ 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;
+ }
+ }
- default:
+ 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;
}
-U_BOOT_CMD(
- log, 255, 1, do_log,
- "manipulate logbuffer",
- "info - show pointer details\n"
- "log reset - clear contents\n"
- "log show - show contents\n"
- "log append <msg> - append <msg> to the logbuffer"
-);
+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;
+ }
+ }
-static int logbuff_printk(const char *line)
+ return CMD_RET_SUCCESS;
+}
+
+static int do_log_format(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
int i;
- char *msg, *p, *buf_end;
- int line_feed;
- static signed char msg_level = -1;
-
- strcpy(buf + 3, line);
- i = strlen(line);
- buf_end = buf + 3 + i;
- for (p = buf + 3; p < buf_end; p++) {
- msg = p;
- if (msg_level < 0) {
- if (
- p[0] != '<' ||
- p[1] < '0' ||
- p[1] > '7' ||
- p[2] != '>'
- ) {
- p -= 3;
- p[0] = '<';
- p[1] = default_message_loglevel + '0';
- p[2] = '>';
- } else {
- msg += 3;
+
+ 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);
}
- msg_level = p[1] - '0';
}
- line_feed = 0;
- for (; p < buf_end; p++) {
- if (log_version == 2) {
- lbuf[log->v2.end & LOGBUFF_MASK] = *p;
- log->v2.end++;
- if (log->v2.end - log->v2.start > LOGBUFF_LEN)
- log->v2.start++;
- log->v2.chars++;
- } else {
- lbuf[(log->v1.start + log->v1.size) &
- LOGBUFF_MASK] = *p;
- if (log->v1.size < LOGBUFF_LEN)
- log->v1.size++;
- else
- log->v1.start++;
- log->v1.chars++;
- }
- if (*p == '\n') {
- line_feed = 1;
- break;
- }
+ } else {
+ printf("Log format: ");
+ for (i = 0; i < LOGF_COUNT; i++) {
+ if (gd->log_fmt & (1 << i))
+ printf("%c", log_fmt_chars[i]);
}
- if (msg_level < console_loglevel) {
- printf("%s", msg);
+ 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 (line_feed)
- msg_level = -1;
}
- return i;
+ 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),
+);
projects / platform / kernel / u-boot.git / blobdiff