/* * Copyright (C) 2018 Intel Corporation. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include #include #include #include #include #include #include #include #include #include #include "dm_string.h" #include "log.h" DECLARE_LOGGER_SECTION(); /* * --logger_setting: console,level=4;disk,level=4;kmsg,level=3 * the setting param is from acrn-dm input, will be parsed here */ int init_logger_setting(const char *opt) { char *orig, *str, *elem, *name, *level; uint32_t lvl_val; int error = 0; struct logger_ops **pp_logger, *plogger; orig = str = strdup(opt); if (!str) { fprintf(stderr, "%s: strdup returns NULL\n", __func__); return -1; } /* param example: --logger_setting console,level=4;kmsg,level=3 */ for (elem = strsep(&str, ";"); elem != NULL; elem = strsep(&str, ";")) { name = strsep(&elem, ","); level = elem; if ((strncmp(level, "level=", 6) != 0) || (dm_strtoui(level + 6, &level, 10, &lvl_val))) { fprintf(stderr, "logger setting param error: %s, please check!\n", elem); error = -1; break; } printf("logger: name=%s, level=%d\n", name, lvl_val); plogger = NULL; FOR_EACH_LOGGER(pp_logger) { plogger = *pp_logger; if (strcmp(name, plogger->name) == 0) { if (plogger->init) plogger->init(true, (uint8_t)lvl_val); break; } } if (plogger == NULL) { fprintf(stderr, "there is no logger: %s found in DM, please check!\n", name); error = -1; break; } } free(orig); return error; } void deinit_loggers(void) { struct logger_ops **pp_logger, *plogger; FOR_EACH_LOGGER(pp_logger) { plogger = *pp_logger; if (plogger->deinit) plogger->deinit(); } } void output_log(uint8_t level, const char *fmt, ...) { va_list args; struct logger_ops **pp_logger, *logger; /* check each logger flag and level, to output */ FOR_EACH_LOGGER(pp_logger) { logger = *pp_logger; if (logger->is_enabled() && (level <= logger->get_log_level()) && (logger->output)) { va_start(args, fmt); logger->output(fmt, args); va_end(args); } } } /* console setting and its API interface */ static uint8_t console_log_level = DEFAULT_LOG_LEVEL; static bool console_enabled = true; static bool is_console_enabled(void) { return console_enabled; } static uint8_t get_console_log_level(void) { return console_log_level; } static int init_console_setting(bool enable, uint8_t log_level) { console_enabled = enable; console_log_level = log_level; return 0; } static void write_to_console(const char *fmt, va_list args) { /* if no need add other info, just output */ vprintf(fmt, args); } static struct logger_ops logger_console = { .name = "console", .is_enabled = is_console_enabled, .get_log_level = get_console_log_level, .init = init_console_setting, .output = write_to_console, }; DEFINE_LOGGER_DEVICE(logger_console);