X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Feal_common_log.c;h=c5554badb24c55150214df7e6d866d727535bb2c;hb=1cdb89c177269a0756f82ae3eb057fe34e205f41;hp=68d879ae29c34382c4f5d0a7da8aab6bd7547b6d;hpb=c1b5fa94a46fb9b4720dd3d1c1ca8852ae360c9b;p=dpdk.git diff --git a/lib/librte_eal/common/eal_common_log.c b/lib/librte_eal/common/eal_common_log.c index 68d879ae29..c5554badb2 100644 --- a/lib/librte_eal/common/eal_common_log.c +++ b/lib/librte_eal/common/eal_common_log.c @@ -1,34 +1,5 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation */ #include @@ -37,6 +8,8 @@ #include #include #include +#include +#include #include #include @@ -44,18 +17,45 @@ #include "eal_private.h" -/* global log structure */ -struct rte_logs rte_logs = { +struct rte_log_dynamic_type { + const char *name; + uint32_t loglevel; +}; + +/** The rte_log structure. */ +static struct rte_logs { + uint32_t type; /**< Bitfield with enabled logs. */ + uint32_t level; /**< Log level. */ + FILE *file; /**< Output file set by rte_openlog_stream, or NULL. */ + size_t dynamic_types_len; + struct rte_log_dynamic_type *dynamic_types; +} rte_logs = { .type = ~0, .level = RTE_LOG_DEBUG, - .file = NULL, }; +struct rte_eal_opt_loglevel { + /** Next list entry */ + TAILQ_ENTRY(rte_eal_opt_loglevel) next; + /** Compiled regular expression obtained from the option */ + regex_t re_match; + /** Globbing pattern option */ + char *pattern; + /** Log level value obtained from the option */ + uint32_t level; +}; + +TAILQ_HEAD(rte_eal_opt_loglevel_list, rte_eal_opt_loglevel); + +/** List of valid EAL log level options */ +static struct rte_eal_opt_loglevel_list opt_loglevel_list = + TAILQ_HEAD_INITIALIZER(opt_loglevel_list); + /* Stream to use for logging if rte_logs.file is NULL */ static FILE *default_log_stream; /** - * This global structure stores some informations about the message + * This global structure stores some information about the message * that is currently being processed by one lcore */ struct log_cur_msg { @@ -63,11 +63,6 @@ struct log_cur_msg { uint32_t logtype; /**< log type - see rte_log.h */ }; -struct rte_log_dynamic_type { - const char *name; - uint32_t loglevel; -}; - /* per core log */ static RTE_DEFINE_PER_LCORE(struct log_cur_msg, log_cur_msg); @@ -81,42 +76,63 @@ rte_openlog_stream(FILE *f) return 0; } +FILE * +rte_log_get_stream(void) +{ + FILE *f = rte_logs.file; + + if (f == NULL) { + /* + * Grab the current value of stderr here, rather than + * just initializing default_log_stream to stderr. This + * ensures that we will always use the current value + * of stderr, even if the application closes and + * reopens it. + */ + return default_log_stream ? : stderr; + } + return f; +} + /* Set global log level */ void -rte_set_log_level(uint32_t level) +rte_log_set_global_level(uint32_t level) { rte_logs.level = (uint32_t)level; } /* Get global log level */ uint32_t -rte_get_log_level(void) +rte_log_get_global_level(void) { return rte_logs.level; } -/* Set global log type */ -void -rte_set_log_type(uint32_t type, int enable) +int +rte_log_get_level(uint32_t type) { - if (type < RTE_LOGTYPE_FIRST_EXT_ID) { - if (enable) - rte_logs.type |= type; - else - rte_logs.type &= ~type; - } + if (type >= rte_logs.dynamic_types_len) + return -1; - if (enable) - rte_log_set_level(type, 0); - else - rte_log_set_level(type, RTE_LOG_DEBUG); + return rte_logs.dynamic_types[type].loglevel; } -/* Get global log type */ -uint32_t -rte_get_log_type(void) +bool +rte_log_can_log(uint32_t logtype, uint32_t level) { - return rte_logs.type; + int log_level; + + if (level > rte_log_get_global_level()) + return false; + + log_level = rte_log_get_level(logtype); + if (log_level < 0) + return false; + + if (level > (uint32_t)log_level) + return false; + + return true; } int @@ -132,13 +148,102 @@ rte_log_set_level(uint32_t type, uint32_t level) return 0; } -/* get the current loglevel for the message beeing processed */ +/* set log level by regular expression */ +int +rte_log_set_level_regexp(const char *regex, uint32_t level) +{ + regex_t r; + size_t i; + + if (level > RTE_LOG_DEBUG) + return -1; + + if (regcomp(&r, regex, 0) != 0) + return -1; + + for (i = 0; i < rte_logs.dynamic_types_len; i++) { + if (rte_logs.dynamic_types[i].name == NULL) + continue; + if (regexec(&r, rte_logs.dynamic_types[i].name, 0, + NULL, 0) == 0) + rte_logs.dynamic_types[i].loglevel = level; + } + + regfree(&r); + + return 0; +} + +/* + * Save the type string and the loglevel for later dynamic + * logtypes which may register later. + */ +static int rte_log_save_level(int priority, + const char *regex, const char *pattern) +{ + struct rte_eal_opt_loglevel *opt_ll = NULL; + + opt_ll = malloc(sizeof(*opt_ll)); + if (opt_ll == NULL) + goto fail; + + opt_ll->level = priority; + + if (regex) { + opt_ll->pattern = NULL; + if (regcomp(&opt_ll->re_match, regex, 0) != 0) + goto fail; + } else if (pattern) { + opt_ll->pattern = strdup(pattern); + if (opt_ll->pattern == NULL) + goto fail; + } else + goto fail; + + TAILQ_INSERT_HEAD(&opt_loglevel_list, opt_ll, next); + return 0; +fail: + free(opt_ll); + return -1; +} + +int rte_log_save_regexp(const char *regex, int tmp) +{ + return rte_log_save_level(tmp, regex, NULL); +} + +/* set log level based on globbing pattern */ +int +rte_log_set_level_pattern(const char *pattern, uint32_t level) +{ + size_t i; + + if (level > RTE_LOG_DEBUG) + return -1; + + for (i = 0; i < rte_logs.dynamic_types_len; i++) { + if (rte_logs.dynamic_types[i].name == NULL) + continue; + + if (fnmatch(pattern, rte_logs.dynamic_types[i].name, 0) == 0) + rte_logs.dynamic_types[i].loglevel = level; + } + + return 0; +} + +int rte_log_save_pattern(const char *pattern, int priority) +{ + return rte_log_save_level(priority, NULL, pattern); +} + +/* get the current loglevel for the message being processed */ int rte_log_cur_msg_loglevel(void) { return RTE_PER_LCORE(log_cur_msg).loglevel; } -/* get the current logtype for the message beeing processed */ +/* get the current logtype for the message being processed */ int rte_log_cur_msg_logtype(void) { return RTE_PER_LCORE(log_cur_msg).logtype; @@ -171,7 +276,7 @@ __rte_log_register(const char *name, int id) return -ENOMEM; rte_logs.dynamic_types[id].name = dup_name; - rte_logs.dynamic_types[id].loglevel = RTE_LOG_DEBUG; + rte_logs.dynamic_types[id].loglevel = RTE_LOG_INFO; return id; } @@ -203,46 +308,128 @@ rte_log_register(const char *name) return ret; } -RTE_INIT(rte_log_init); -static void -rte_log_init(void) +/* Register an extended log type and try to pick its level from EAL options */ +int +rte_log_register_type_and_pick_level(const char *name, uint32_t level_def) +{ + struct rte_eal_opt_loglevel *opt_ll; + uint32_t level = level_def; + int type; + + type = rte_log_register(name); + if (type < 0) + return type; + + TAILQ_FOREACH(opt_ll, &opt_loglevel_list, next) { + if (opt_ll->level > RTE_LOG_DEBUG) + continue; + + if (opt_ll->pattern) { + if (fnmatch(opt_ll->pattern, name, 0) == 0) + level = opt_ll->level; + } else { + if (regexec(&opt_ll->re_match, name, 0, NULL, 0) == 0) + level = opt_ll->level; + } + } + + rte_logs.dynamic_types[type].loglevel = level; + + return type; +} + +struct logtype { + uint32_t log_id; + const char *logtype; +}; + +static const struct logtype logtype_strings[] = { + {RTE_LOGTYPE_EAL, "lib.eal"}, + {RTE_LOGTYPE_MALLOC, "lib.malloc"}, + {RTE_LOGTYPE_RING, "lib.ring"}, + {RTE_LOGTYPE_MEMPOOL, "lib.mempool"}, + {RTE_LOGTYPE_TIMER, "lib.timer"}, + {RTE_LOGTYPE_PMD, "pmd"}, + {RTE_LOGTYPE_HASH, "lib.hash"}, + {RTE_LOGTYPE_LPM, "lib.lpm"}, + {RTE_LOGTYPE_KNI, "lib.kni"}, + {RTE_LOGTYPE_ACL, "lib.acl"}, + {RTE_LOGTYPE_POWER, "lib.power"}, + {RTE_LOGTYPE_METER, "lib.meter"}, + {RTE_LOGTYPE_SCHED, "lib.sched"}, + {RTE_LOGTYPE_PORT, "lib.port"}, + {RTE_LOGTYPE_TABLE, "lib.table"}, + {RTE_LOGTYPE_PIPELINE, "lib.pipeline"}, + {RTE_LOGTYPE_MBUF, "lib.mbuf"}, + {RTE_LOGTYPE_CRYPTODEV, "lib.cryptodev"}, + {RTE_LOGTYPE_EFD, "lib.efd"}, + {RTE_LOGTYPE_EVENTDEV, "lib.eventdev"}, + {RTE_LOGTYPE_GSO, "lib.gso"}, + {RTE_LOGTYPE_USER1, "user1"}, + {RTE_LOGTYPE_USER2, "user2"}, + {RTE_LOGTYPE_USER3, "user3"}, + {RTE_LOGTYPE_USER4, "user4"}, + {RTE_LOGTYPE_USER5, "user5"}, + {RTE_LOGTYPE_USER6, "user6"}, + {RTE_LOGTYPE_USER7, "user7"}, + {RTE_LOGTYPE_USER8, "user8"} +}; + +/* Logging should be first initializer (before drivers and bus) */ +RTE_INIT_PRIO(rte_log_init, LOG) { + uint32_t i; + + rte_log_set_global_level(RTE_LOG_DEBUG); + rte_logs.dynamic_types = calloc(RTE_LOGTYPE_FIRST_EXT_ID, sizeof(struct rte_log_dynamic_type)); if (rte_logs.dynamic_types == NULL) return; - /* register legacy log types, keep sync'd with RTE_LOGTYPE_* */ - __rte_log_register("eal", 0); - __rte_log_register("malloc", 1); - __rte_log_register("ring", 2); - __rte_log_register("mempool", 3); - __rte_log_register("timer", 4); - __rte_log_register("pmd", 5); - __rte_log_register("hash", 6); - __rte_log_register("lpm", 7); - __rte_log_register("kni", 8); - __rte_log_register("acl", 9); - __rte_log_register("power", 10); - __rte_log_register("meter", 11); - __rte_log_register("sched", 12); - __rte_log_register("port", 13); - __rte_log_register("table", 14); - __rte_log_register("pipeline", 15); - __rte_log_register("mbuf", 16); - __rte_log_register("cryptodev", 17); - __rte_log_register("user1", 24); - __rte_log_register("user2", 25); - __rte_log_register("user3", 26); - __rte_log_register("user4", 27); - __rte_log_register("user5", 28); - __rte_log_register("user6", 29); - __rte_log_register("user7", 30); - __rte_log_register("user8", 31); + /* register legacy log types */ + for (i = 0; i < RTE_DIM(logtype_strings); i++) + __rte_log_register(logtype_strings[i].logtype, + logtype_strings[i].log_id); rte_logs.dynamic_types_len = RTE_LOGTYPE_FIRST_EXT_ID; } +static const char * +loglevel_to_string(uint32_t level) +{ + switch (level) { + case 0: return "disabled"; + case RTE_LOG_EMERG: return "emerg"; + case RTE_LOG_ALERT: return "alert"; + case RTE_LOG_CRIT: return "critical"; + case RTE_LOG_ERR: return "error"; + case RTE_LOG_WARNING: return "warning"; + case RTE_LOG_NOTICE: return "notice"; + case RTE_LOG_INFO: return "info"; + case RTE_LOG_DEBUG: return "debug"; + default: return "unknown"; + } +} + +/* dump global level and registered log types */ +void +rte_log_dump(FILE *f) +{ + size_t i; + + fprintf(f, "global log level is %s\n", + loglevel_to_string(rte_log_get_global_level())); + + for (i = 0; i < rte_logs.dynamic_types_len; i++) { + if (rte_logs.dynamic_types[i].name == NULL) + continue; + fprintf(f, "id %zu: %s, level is %s\n", + i, rte_logs.dynamic_types[i].name, + loglevel_to_string(rte_logs.dynamic_types[i].loglevel)); + } +} + /* * Generates a log message The message will be sent in the stream * defined by the previous call to rte_openlog_stream(). @@ -250,27 +437,12 @@ rte_log_init(void) int rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap) { + FILE *f = rte_log_get_stream(); int ret; - FILE *f = rte_logs.file; - if (f == NULL) { - f = default_log_stream; - if (f == NULL) { - /* - * Grab the current value of stderr here, rather than - * just initializing default_log_stream to stderr. This - * ensures that we will always use the current value - * of stderr, even if the application closes and - * reopens it. - */ - f = stderr; - } - } - if (level > rte_logs.level) - return 0; if (logtype >= rte_logs.dynamic_types_len) return -1; - if (level > rte_logs.dynamic_types[logtype].loglevel) + if (!rte_log_can_log(logtype, level)) return 0; /* save loglevel and logtype in a global per-lcore variable */