4c8d244fae
NuttX kernel should not use the syscall functions, especially after enabling CONFIG_SCHED_INSTRUMENTATION_SYSCALL, all system functions will be traced to backend, which will impact system performance. Signed-off-by: chao an <anchao@xiaomi.com>
269 lines
7.2 KiB
C
269 lines
7.2 KiB
C
/****************************************************************************
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* drivers/syslog/vsyslog.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <errno.h>
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#include <nuttx/arch.h>
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#include <nuttx/init.h>
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#include <nuttx/clock.h>
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#include <nuttx/streams.h>
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#include "syslog.h"
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#if defined(CONFIG_SYSLOG_COLOR_OUTPUT)
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static FAR const char * const g_priority_color[] =
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{
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"\e[31;1;5m", /* LOG_EMERG, Red, Bold, Blinking */
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"\e[31;1m", /* LOG_ALERT, Red, Bold */
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"\e[31;1m", /* LOG_CRIT, Red, Bold */
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"\e[31m", /* LOG_ERR, Red */
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"\e[33m", /* LOG_WARNING, Yellow */
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"\e[1m", /* LOG_NOTICE, Bold */
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"", /* LOG_INFO, Normal */
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"\e[2m", /* LOG_DEBUG, Dim */
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};
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#endif
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#if defined(CONFIG_SYSLOG_PRIORITY)
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static FAR const char * const g_priority_str[] =
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{
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"EMERG", "ALERT", "CRIT", "ERROR",
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"WARN", "NOTICE", "INFO", "DEBUG"
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};
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nx_vsyslog
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*
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* Description:
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* nx_vsyslog() handles the system logging system calls. It is functionally
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* equivalent to vsyslog() except that (1) the per-process priority
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* filtering has already been performed and the va_list parameter is
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* passed by reference. That is because the va_list is a structure in
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* some compilers and passing of structures in the NuttX sycalls does
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* not work.
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*
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****************************************************************************/
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int nx_vsyslog(int priority, FAR const IPTR char *fmt, FAR va_list *ap)
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{
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struct lib_syslogstream_s stream;
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int ret;
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#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_SYSLOG_PROCESS_NAME)
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FAR struct tcb_s *tcb = nxsched_get_tcb(nxsched_gettid());
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#endif
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#ifdef CONFIG_SYSLOG_TIMESTAMP
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struct timespec ts;
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED)
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struct tm tm;
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char date_buf[CONFIG_SYSLOG_TIMESTAMP_BUFFER];
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# endif
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#endif
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struct va_format vaf;
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vaf.fmt = fmt;
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vaf.va = ap;
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/* Wrap the low-level output in a stream object and let lib_vsprintf
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* do the work.
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*/
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lib_syslogstream_open(&stream);
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#ifdef CONFIG_SYSLOG_TIMESTAMP
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ts.tv_sec = 0;
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ts.tv_nsec = 0;
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED)
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memset(&tm, 0, sizeof(tm));
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# endif
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/* Get the current time. Since debug output may be generated very early
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* in the start-up sequence, hardware timer support may not yet be
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* available.
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*/
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if (OSINIT_HW_READY())
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{
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# if defined(CONFIG_SYSLOG_TIMESTAMP_REALTIME)
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/* Use CLOCK_REALTIME if so configured */
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clock_gettime(CLOCK_REALTIME, &ts);
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# else
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/* Prefer monotonic when enabled, as it can be synchronized to
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* RTC with clock_resynchronize.
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*/
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clock_gettime(CLOCK_MONOTONIC, &ts);
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# endif
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/* Prepend the message with the current time, if available */
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED)
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# if defined(CONFIG_SYSLOG_TIMESTAMP_LOCALTIME)
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localtime_r(&ts.tv_sec, &tm);
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# else
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gmtime_r(&ts.tv_sec, &tm);
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# endif
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# endif
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}
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED)
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date_buf[0] = '\0';
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strftime(date_buf, CONFIG_SYSLOG_TIMESTAMP_BUFFER,
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CONFIG_SYSLOG_TIMESTAMP_FORMAT, &tm);
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# endif
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#endif
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ret = lib_sprintf(&stream.public,
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#if defined(CONFIG_SYSLOG_COLOR_OUTPUT)
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/* Reset the terminal style. */
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"\e[0m"
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#endif
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#ifdef CONFIG_SYSLOG_TIMESTAMP
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED)
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMAT_MICROSECOND)
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"[%s.%06ld] "
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# else
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"[%s] "
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# endif
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# else
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"[%5jd.%06ld] "
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# endif
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#endif
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#if defined(CONFIG_SMP)
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"[CPU%d] "
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#endif
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#if defined(CONFIG_SYSLOG_PROCESSID)
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/* Prepend the Thread ID */
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"[%2d] "
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#endif
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#if defined(CONFIG_SYSLOG_COLOR_OUTPUT)
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/* Set the terminal style according to message priority. */
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"%s"
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#endif
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#if defined(CONFIG_SYSLOG_PRIORITY)
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/* Prepend the message priority. */
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"[%6s] "
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#endif
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#if defined(CONFIG_SYSLOG_PREFIX)
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/* Prepend the prefix, if available */
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"[%s] "
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#endif
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#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_SYSLOG_PROCESS_NAME)
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/* Prepend the thread name */
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"%s: "
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#endif
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"%pV"
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#ifdef CONFIG_SYSLOG_TIMESTAMP
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED)
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# if defined(CONFIG_SYSLOG_TIMESTAMP_FORMAT_MICROSECOND)
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, date_buf, ts.tv_nsec / NSEC_PER_USEC
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# else
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, date_buf
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# endif
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# else
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, (uintmax_t)ts.tv_sec, ts.tv_nsec / NSEC_PER_USEC
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# endif
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#endif
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#if defined(CONFIG_SMP)
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, up_cpu_index()
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#endif
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#if defined(CONFIG_SYSLOG_PROCESSID)
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/* Prepend the Thread ID */
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, (int)nxsched_gettid()
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#endif
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#if defined(CONFIG_SYSLOG_COLOR_OUTPUT)
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/* Set the terminal style according to message priority. */
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, g_priority_color[priority]
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#endif
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#if defined(CONFIG_SYSLOG_PRIORITY)
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/* Prepend the message priority. */
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, g_priority_str[priority]
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#endif
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#if defined(CONFIG_SYSLOG_PREFIX)
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/* Prepend the prefix, if available */
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, CONFIG_SYSLOG_PREFIX_STRING
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#endif
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#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_SYSLOG_PROCESS_NAME)
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/* Prepend the thread name */
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, tcb != NULL ? tcb->name : "(null)"
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#endif
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/* Generate the output */
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, &vaf);
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if (stream.last_ch != '\n')
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{
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lib_stream_putc(&stream.public, '\n');
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ret++;
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}
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#if defined(CONFIG_SYSLOG_COLOR_OUTPUT)
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/* Reset the terminal style back to normal. */
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ret += lib_stream_puts(&stream.public, "\e[0m", sizeof("\e[0m"));
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#endif
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/* Flush and destroy the syslog stream buffer */
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lib_syslogstream_close(&stream);
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return ret;
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}
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