[components/utilities]delete log_trace,remove log_trace menu from Kconfig

6 files changed, 0 insertions, 889 deletions

diff --git a/components/utilities/Kconfig b/components/utilities/Kconfig
index 504a56691d..250239aea6 100644
--- a/components/utilities/Kconfig
+++ b/components/utilities/Kconfig
@@ -1,47 +1,5 @@
 menu "Utilities"
 
-config RT_USING_LOGTRACE
-    bool "Enable log trace"
-    default n
-
-if RT_USING_LOGTRACE
-    config LOG_TRACE_MAX_SESSION
-        int "Maximal number of session"
-        default 16
-
-    choice
-        prompt "The default level of log"
-        default LOG_TRACE_USING_LEVEL_INFO
-
-        config LOG_TRACE_USING_LEVEL_NOTRACE
-            bool "No trace"
-
-        config LOG_TRACE_USING_LEVEL_ERROR
-            bool "Only error log"
-
-        config LOG_TRACE_USING_LEVEL_WARNING
-            bool "Warning log"
-
-        config LOG_TRACE_USING_LEVEL_INFO
-            bool "Information log"
-
-        config LOG_TRACE_USING_LEVEL_VERBOSE
-            bool "Verbose log"
-
-        config LOG_TRACE_USING_LEVEL_DEBUG
-            bool "All debug log"
-    endchoice
-
-    config LOG_TRACE_USING_MEMLOG
-        bool "Enable memory log for logtrace"
-        default n
-        help
-            Enable memory log for logtrace, then the logs in log_trace
-            will be printed out in idle thread hook function.
-
-            Please make sure the idle hook is not used.
-endif
-
 config RT_USING_RYM
     bool "Enable Ymodem"
     default n
diff --git a/components/utilities/logtrace/SConscript b/components/utilities/logtrace/SConscript
deleted file mode 100644
index afc60792b9..0000000000
--- a/components/utilities/logtrace/SConscript
+++ /dev/null
@@ -1,17 +0,0 @@
-from building import *
-
-cwd     = GetCurrentDir()
-src     = Split('''
-log_trace.c
-''')
-CPPPATH = [cwd]
-
-if GetDepend('LOG_TRACE_USING_MEMLOG'):
-    src += ['memlog.c']
-
-if GetDepend('RT_USING_DFS'):
-    src += ['log_file.c']
-
-group = DefineGroup('Utilities', src, depend = ['RT_USING_LOGTRACE'], CPPPATH = CPPPATH)
-
-Return('group')
diff --git a/components/utilities/logtrace/log_file.c b/components/utilities/logtrace/log_file.c
deleted file mode 100644
index 766e55c3a6..0000000000
--- a/components/utilities/logtrace/log_file.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- *                Bernard      the first version
- * 2013-06-26     Grissiom     refactor
- */
-#include <rtthread.h>
-#include <log_trace.h>
-
-#ifdef RT_USING_DFS
-
-#include <dfs_posix.h>
-
-struct file_device
-{
-    struct rt_device parent;
-
-    int  fd;
-    char *filename;
-};
-
-/* file device for log trace */
-static struct file_device _file_device;
-
-/* common device interface */
-static rt_err_t fdevice_open(rt_device_t dev, rt_uint16_t oflag)
-{
-    int fd;
-    struct file_device *fdev = (struct file_device *)dev;
-
-    if (fdev->fd >= 0)
-        return -RT_EBUSY;
-
-    /* test and open */
-    fd = open(fdev->filename, O_RDONLY, 0);
-    if (fd >= 0)
-    {
-        close(fd);
-        fd = open(fdev->filename, O_WRONLY | O_APPEND, 0);
-    }
-    else
-    {
-        /* file not exists */
-        fd = open(fdev->filename, O_WRONLY | O_CREAT, 0);
-    }
-    fdev->fd = fd;
-
-    return RT_EOK;
-}
-
-static rt_err_t fdevice_close(rt_device_t dev)
-{
-    rt_err_t result;
-    struct file_device *fdev = (struct file_device *)dev;
-
-    if (fdev->fd < 0)
-        return -RT_EBUSY;
-
-    result = close(fdev->fd);
-    if (result == 0)
-    {
-        fdev->fd = -1;
-    }
-
-    return result;
-}
-
-static rt_size_t fdevice_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
-{
-    struct file_device *fdev = (struct file_device *)dev;
-
-    if (fdev->fd < 0)
-        return 0;
-
-    return write(fdev->fd, buffer, size);
-}
-
-static rt_err_t fdevice_control(rt_device_t dev, int cmd, void *arg)
-{
-    struct file_device *fdev = (struct file_device *)dev;
-
-    if (fdev->fd < 0)
-        return 0;
-
-    switch (cmd)
-    {
-    case LOG_TRACE_CTRL_FLUSH:
-        if (fsync(fdev->fd) != 0)
-            return RT_ERROR;
-        break;
-    default:
-        break;
-    }
-    return RT_EOK;
-}
-
-#ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops log_trace_ops = 
-{
-    RT_NULL,
-    fdevice_open,
-    fdevice_close,
-    RT_NULL,
-    fdevice_write,
-    fdevice_control
-};
-#endif
-
-void log_trace_file_init(const char *filename)
-{
-    rt_device_t device;
-
-    device = rt_device_find("logfile");
-    if (device == RT_NULL)
-    {
-        rt_memset(&_file_device, 0x00, sizeof(_file_device));
-
-        _file_device.parent.type  = RT_Device_Class_Char;
-
-#ifdef RT_USING_DEVICE_OPS
-        _file_device.parent.ops     = &log_trace_ops;
-#else
-        _file_device.parent.init    = RT_NULL;
-        _file_device.parent.open    = fdevice_open;
-        _file_device.parent.close   = fdevice_close;
-        _file_device.parent.write   = fdevice_write;
-        _file_device.parent.control = fdevice_control;
-#endif
-
-        rt_device_register(&_file_device.parent, "logfile", O_RDWR);
-    }
-
-    _file_device.filename = rt_strdup(filename);
-    _file_device.fd = -1;
-}
-
-void log_trace_set_file(const char *filename)
-{
-    log_trace_file_init(filename);
-    log_trace_set_device("logfile");
-}
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-FINSH_FUNCTION_EXPORT_ALIAS(log_trace_set_file, log_file, set output filename of log trace);
-#endif
-
-#endif /* RT_USING_DFS */
diff --git a/components/utilities/logtrace/log_trace.c b/components/utilities/logtrace/log_trace.c
deleted file mode 100644
index 2d63149320..0000000000
--- a/components/utilities/logtrace/log_trace.c
+++ /dev/null
@@ -1,445 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- *                Bernard      the first version
- * 2013-06-26     Grissiom     refactor
- */
-
-#include <rtthread.h>
-#include <rthw.h>
-#include <stdio.h>
-#include "log_trace.h"
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-#else
-#define FINSH_FUNCTION_EXPORT(...)
-#define FINSH_FUNCTION_EXPORT_ALIAS(...)
-#endif
-
-/* log pseudo device */
-static struct rt_device _log_device;
-
-static rt_device_t _traceout_device = RT_NULL;
-
-/* define a default lg session. The name is empty. */
-static struct log_trace_session _def_session = {{"\0"}, LOG_TRACE_LEVEL_DEFAULT};
-static const struct log_trace_session *_the_sessions[LOG_TRACE_MAX_SESSION] = {&_def_session};
-/* there is a default session at least */
-static rt_uint16_t _the_sess_nr = 1;
-
-rt_inline int _idname_len(log_trace_idnum_t id)
-{
-    /* little endian */
-    if ((id & 0x000000FF) == 0)
-        return 0;
-    if ((id & 0x0000FF00) == 0)
-        return 1;
-    if ((id & 0x00FF0000) == 0)
-        return 2;
-    if ((id & 0xFF000000) == 0)
-        return 3;
-#ifndef LOG_TRACE_USE_LONGNAME
-    return 4;
-#else
-    {
-        rt_uint32_t id2 = id >> 32;
-        if ((id2 & 0x000000FF) == 0)
-            return 4;
-        if ((id2 & 0x0000FF00) == 0)
-            return 5;
-        if ((id2 & 0x00FF0000) == 0)
-            return 6;
-        if ((id2 & 0xFF000000) == 0)
-            return 7;
-        return 8;
-    }
-#endif
-}
-
-/* lookup the session according to name.
- *
- * @param len is the length of the name
- * @return the pointer to the named session. RT_NULL when there is no such a
- * session.
- */
-static struct log_trace_session* _lg_lookup_session(log_trace_idnum_t num)
-{
-    static const struct log_trace_session *_cache = &_def_session;
-    rt_uint16_t first, last;
-
-    if (_cache->id.num == num)
-        return (struct log_trace_session *)_cache;
-
-    first = 0;
-    last  = _the_sess_nr;
-    do {
-        unsigned int i = (first + last)/2;
-
-        RT_ASSERT(_the_sessions[i]);
-
-        if (_the_sessions[i]->id.num == num)
-        {
-            /* there is no need to protect the _cache because write a pointer
-             * is atomic. So we cannot get a invalid pointer. The worst thing
-             * could happen is there is an interrupt in the read/modify/write
-             * process and we wrote the old one to _cache. But it doesn't harm
-             * a lot because it will be flushed in the next time. */
-            _cache = _the_sessions[i];
-            return (struct log_trace_session *)_the_sessions[i];
-        }
-        else if (_the_sessions[i]->id.num > num)
-        {
-            last = i;
-        }
-        else // _the_sessions[i]->id.num < num
-        {
-            first = i;
-        }
-    } while (first != last-1);
-
-    return RT_NULL;
-}
-
-rt_err_t log_trace_register_session(const struct log_trace_session *session)
-{
-    unsigned int lvl, i;
-
-    if (_the_sess_nr == LOG_TRACE_MAX_SESSION)
-        return -RT_EFULL;
-
-    if (session == RT_NULL)
-        return RT_EOK;
-
-    lvl = rt_hw_interrupt_disable();
-    /* inserting the sessions in ascending order.
-     *
-     * this might take relatively long time. But since the register should only
-     * happen when initialize the whole system, this should not be a matter. */
-    for (i = 0; i < _the_sess_nr; i++)
-    {
-        if (_the_sessions[i]->id.num > session->id.num)
-        {
-            rt_memmove(_the_sessions+i+1, _the_sessions+i,
-                       (_the_sess_nr-i)*sizeof(&_the_sessions[0]));
-            _the_sessions[i] = session;
-            break;
-        }
-        else if (_the_sessions[i]->id.num == session->id.num)
-        {
-            rt_kprintf("registering session 0x%p twice\n", session);
-            rt_hw_interrupt_enable(lvl);
-            return -RT_ERROR;
-        }
-    }
-    if (i == _the_sess_nr)
-        _the_sessions[i] = session;
-    _the_sess_nr++;
-    rt_hw_interrupt_enable(lvl);
-
-    return RT_EOK;
-}
-
-struct log_trace_session* log_trace_session_find(const char *name)
-{
-    union log_trace_id *idp;
-
-    RT_ASSERT(name);
-    idp = (union log_trace_id*)name;
-    return _lg_lookup_session(idp->num);
-}
-
-void log_trace_set_level(rt_uint8_t level)
-{
-    _def_session.lvl = level;
-}
-FINSH_FUNCTION_EXPORT_ALIAS(log_trace_set_level, log_level, set the filter level of log trace);
-
-void log_trace_session_set_level(struct log_trace_session *sess, rt_uint8_t level)
-{
-    RT_ASSERT(sess);
-    sess->lvl = level;
-}
-
-/* parse the level info in fmt
- *
- * @param flen the length of the format.
- * @param lvlp the pointer to level. It will store the level in the memory the
- *        lvlp points to. The default value is LOG_TRACE_LEVEL_DEFAULT.
- * @return the number of char it scaned.
- */
-static rt_size_t _lg_parse_lvl(const char *fmt, rt_size_t flen, int *lvlp)
-{
-    RT_ASSERT(fmt);
-    RT_ASSERT(lvlp);
-
-    /* setup default value */
-    *lvlp = LOG_TRACE_LEVEL_DEFAULT;
-
-    if (flen < 3)
-    {
-        return 0;
-    }
-
-    if (fmt[0] == '<' && fmt[2] == '>')
-    {
-        *lvlp = fmt[1] - '0';
-        return 3;
-    }
-    return 0;
-}
-
-/* parse the header in fmt
- *
- * @param flen the length of the format.
- * @param sessp the pointer of pointer to the session. It will store the
- *        session pointer in the memory the sessp points to. When failed to
- *        find the session, it will be setted to the default session.
- * @return the number of char it scaned, i.e., the length of header.
- */
-static rt_size_t _lg_parse_session(
-        const char *fmt, rt_size_t flen, struct log_trace_session **sessp)
-{
-    unsigned int i;
-    struct log_trace_session *tmpsess;
-    union log_trace_id id;
-
-    RT_ASSERT(fmt);
-    RT_ASSERT(sessp);
-
-    /* setup default value */
-    *sessp = &_def_session;
-
-    /* no name space left */
-    if (flen < sizeof(id) + 2)
-        return 0;
-
-    if (fmt[0] != '[')
-        return 0;
-
-    id.num = 0;
-    /* skip '[' and convert the string to id number. */
-    for (i = 1; fmt[i] != ']'; i++)
-    {
-        if (i - 1 == sizeof(id))
-            return 0;
-        id.name[i-1] = fmt[i];
-    }
-    tmpsess = _lg_lookup_session(id.num);
-    if (tmpsess != RT_NULL)
-    {
-        *sessp = tmpsess;
-        /* only count the header length when we found the session. So
-         * the wrong [name] will be printed out. */
-        return i + 1;
-    }
-
-    return 0;
-}
-
-void __logtrace_vfmtout(const struct log_trace_session *session,
-                        const char *fmt,
-                        va_list argptr)
-{
-    /* 1 for ']' */
-    static char _trace_buf[1+LOG_TRACE_BUFSZ];
-    char *ptr;
-    rt_size_t length;
-
-    RT_ASSERT(session);
-    RT_ASSERT(fmt);
-
-    /* it's default session */
-    if (session->id.name[0] == '\0')
-    {
-        rt_snprintf(_trace_buf, sizeof(_trace_buf), "[%08x]", rt_tick_get());
-        if (_traceout_device != RT_NULL)
-        {
-            rt_device_write(_traceout_device, -1, _trace_buf, 10);
-        }
-
-        ptr = &_trace_buf[0];
-    }
-    else
-    {
-        rt_snprintf(_trace_buf, sizeof(_trace_buf), "[%08x][", rt_tick_get());
-        if (_traceout_device != RT_NULL)
-        {
-            rt_device_write(_traceout_device, -1, _trace_buf, 11);
-            rt_device_write(_traceout_device, -1,
-                    session->id.name, _idname_len(session->id.num));
-        }
-
-        _trace_buf[0] = ']';
-        ptr = &_trace_buf[1];
-    }
-
-    length = rt_vsnprintf(ptr, LOG_TRACE_BUFSZ, fmt, argptr);
-
-    if (length >= LOG_TRACE_BUFSZ)
-        length = LOG_TRACE_BUFSZ - 1;
-
-    if (_traceout_device != RT_NULL)
-    {
-        rt_device_write(_traceout_device, -1, _trace_buf, length + 1);
-    }
-}
-
-void log_trace(const char *fmt, ...)
-{
-    va_list args;
-    int level;
-    struct log_trace_session *session;
-
-    RT_ASSERT(fmt);
-
-    fmt += _lg_parse_lvl(fmt, strlen(fmt), &level);
-    fmt += _lg_parse_session(fmt, strlen(fmt), &session);
-
-    /* filter by level */
-    if (level > session->lvl)
-        return;
-
-    va_start(args, fmt);
-    __logtrace_vfmtout(session, fmt, args);
-    va_end(args);
-}
-FINSH_FUNCTION_EXPORT(log_trace, log trace);
-
-void log_session(const struct log_trace_session *session, const char *fmt, ...)
-{
-    va_list args;
-    int level;
-
-    RT_ASSERT(session);
-    RT_ASSERT(fmt);
-
-    fmt += _lg_parse_lvl(fmt, strlen(fmt), &level);
-    if (level > session->lvl)
-        return;
-
-    va_start(args, fmt);
-    __logtrace_vfmtout(session, fmt, args);
-    va_end(args);
-}
-
-void log_trace_flush(void)
-{
-    rt_device_control(_traceout_device, LOG_TRACE_CTRL_FLUSH, RT_NULL);
-}
-FINSH_FUNCTION_EXPORT_ALIAS(log_trace_flush, log_flush, flush log on the buffer);
-
-/* RT-Thread common device interface */
-static rt_size_t _log_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
-{
-    char c;
-    int level;
-    rt_size_t head_len;
-    const char *ptr = buffer;
-    struct log_trace_session *session;
-
-    head_len = _lg_parse_lvl(ptr, size, &level);
-    head_len += _lg_parse_session(ptr+head_len, size-head_len, &session);
-
-    /* filter by level */
-    if (level > session->lvl)
-        return size;
-
-    if (_traceout_device != RT_NULL)
-    {
-        c = '[';
-        rt_device_write(_traceout_device, -1, &c, 1);
-        rt_device_write(_traceout_device, -1, session->id.name, _idname_len(session->id.num));
-        c = ']';
-        rt_device_write(_traceout_device, -1, &c, 1);
-        rt_device_write(_traceout_device, -1, ((char*)buffer)+head_len, size - head_len);
-    }
-
-    return size;
-}
-
-static rt_err_t _log_control(rt_device_t dev, int cmd, void *arg)
-{
-    if (_traceout_device == RT_NULL) return -RT_ERROR;
-
-    return rt_device_control(_traceout_device, cmd, arg);
-}
-
-#ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops log_device_ops = 
-{
-    RT_NULL,
-    RT_NULL,
-    RT_NULL,
-    RT_NULL,
-    _log_write,
-    _log_control
-};
-#endif
-
-int log_trace_init(void)
-{
-    rt_memset(&_log_device, 0x00, sizeof(_log_device));
-
-    _log_device.type = RT_Device_Class_Char;
-#ifdef RT_USING_DEVICE_OPS
-    _log_device.ops     = &log_device_ops;
-#else
-    _log_device.init    = RT_NULL;
-    _log_device.open    = RT_NULL;
-    _log_device.close   = RT_NULL;
-    _log_device.read    = RT_NULL;
-    _log_device.write   = _log_write;
-    _log_device.control = _log_control;
-#endif
-
-    /* no indication and complete callback */
-    _log_device.rx_indicate = RT_NULL;
-    _log_device.tx_complete = RT_NULL;
-
-    rt_device_register(&_log_device, "log", RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_RDWR);
-
-	/* set console as default device */
-	_traceout_device = rt_console_get_device();
-
-    return 0;
-}
-INIT_DEVICE_EXPORT(log_trace_init);
-
-rt_device_t log_trace_get_device(void)
-{
-    return _traceout_device;
-}
-
-rt_err_t log_trace_set_device(const char *device_name)
-{
-    struct rt_device *output_device;
-
-    /* find out output device */
-    output_device = rt_device_find(device_name);
-    if (output_device != RT_NULL)
-    {
-        rt_err_t result;
-
-        /* open device */
-        result = rt_device_open(output_device, RT_DEVICE_FLAG_STREAM | RT_DEVICE_OFLAG_RDWR);
-        if (result != RT_EOK)
-        {
-            rt_kprintf("Open trace device failed.\n");
-            return -RT_ERROR;
-        }
-    }
-
-    /* set trace out device */
-    if (_traceout_device != RT_NULL)
-        rt_device_close(_traceout_device);
-    _traceout_device = output_device;
-
-    return RT_EOK;
-}
-FINSH_FUNCTION_EXPORT_ALIAS(log_trace_set_device, log_device, set device of log trace);
-
diff --git a/components/utilities/logtrace/log_trace.h b/components/utilities/logtrace/log_trace.h
deleted file mode 100644
index 0c8a122515..0000000000
--- a/components/utilities/logtrace/log_trace.h
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- *                Bernard      the first version
- * 2013-06-26     Grissiom     refactor
- */
-
-#ifndef __LOG_TRACE_H__
-#define __LOG_TRACE_H__
-
-#include <rtthread.h>
-
-#define LOG_TRACE_LEVEL_MASK        0x0f
-#define LOG_TRACE_LEVEL_NOTRACE     0x00
-#define LOG_TRACE_LEVEL_ERROR       0x01
-#define LOG_TRACE_LEVEL_WARNING     0x03
-#define LOG_TRACE_LEVEL_INFO        0x05
-#define LOG_TRACE_LEVEL_VERBOSE     0x07
-#define LOG_TRACE_LEVEL_DEBUG       0x09
-#define LOG_TRACE_LEVEL_ALL         0x0f
-
-#if defined(LOG_TRACE_USING_LEVEL_NOTRACE)
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_NOTRACE
-#elif defined(LOG_TRACE_USING_LEVEL_ERROR)
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_ERROR
-#elif defined(LOG_TRACE_USING_LEVEL_WARNING)
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_WARNING
-#elif defined(LOG_TRACE_USING_LEVEL_INFO)
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_INFO
-#elif defined(LOG_TRACE_USING_LEVEL_VERBOSE)
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_VERBOSE
-#elif defined(LOG_TRACE_USING_LEVEL_DEBUG)
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_DEBUG
-#else
-#define LOG_TRACE_LEVEL_DEFAULT     LOG_TRACE_LEVEL_INFO
-#endif
-
-#define LOG_TRACE_ERROR             "<1>"
-#define LOG_TRACE_WARNING           "<3>"
-#define LOG_TRACE_INFO              "<5>"
-#define LOG_TRACE_VERBOSE           "<7>"
-#define LOG_TRACE_DEBUG             "<9>"
-
-#define LOG_TRACE_OPT_NOTS          0x10    /* no timestamp */
-#define LOG_TRACE_OPT_LN            0x20    /* terminate the current line */
-
-#define LOG_TRACE_CTRL_FLUSH        0x10
-#define LOG_TRACE_CTRL_RESET        0x11
-#define LOG_TRACE_CTRL_DUMP         0x12
-
-//#define LOG_TRACE_USE_LONGNAME
-
-#ifndef LOG_TRACE_BUFSZ
-#define LOG_TRACE_BUFSZ RT_CONSOLEBUF_SIZE
-#endif
-
-/** maximum number of sessions that can be registered to the log_trace system
- */
-#ifndef LOG_TRACE_MAX_SESSION
-#define LOG_TRACE_MAX_SESSION 16
-#endif
-
-#ifdef LOG_TRACE_USE_LONGNAME
-typedef rt_uint64_t log_trace_idnum_t;
-#else
-typedef rt_uint32_t log_trace_idnum_t;
-#endif
-
-/* use a integer to represent a string to avoid strcmp. Even 4 chars
- * should be enough for most of the cases.
- * NOTE: take care when converting the name string to id number, you
- * can trapped in endianness.
- */
-union log_trace_id {
-    char name[sizeof(log_trace_idnum_t)];
-    log_trace_idnum_t num;
-};
-
-struct log_trace_session
-{
-    union log_trace_id id;
-    rt_uint8_t lvl;
-};
-
-/** initialize the log_trace system */
-int log_trace_init(void);
-
-/** register a session.
- *
- * @return RT_EOK on success. -RT_EFULL if there is no space for registration.
- */
-rt_err_t log_trace_register_session(const struct log_trace_session *session);
-
-/** find a session with name
- *
- * The name is not enclosed by parenthesis([]).
- *
- * @return RT_NULL if there is no such a session.
- */
-struct log_trace_session* log_trace_session_find(const char *name);
-
-/** set the log level of the default session. */
-void log_trace_set_level(rt_uint8_t level);
-
-/** set the log level of the session */
-void log_trace_session_set_level(
-        struct log_trace_session *session, rt_uint8_t level);
-
-/** log according to the format
- *
- * the format of log_trace is: "<level>[name]log messages".  It will output
- * "[systick][name]log messages" When there is no session named name, the
- * default session will be used.
- *
- * We have keep the level tag before the name tag because we don't print put
- * the level tag to the output and it's easier to implement if we place the
- * level tag in the very beginning.
- */
-void log_trace(const char *fmt, ...);
-
-/** log into session.
- *
- * the format of log_trace is: "<level>log messages".  It will output
- * "[systick][name]log messages". The name is the name of the session. It is
- * faster than bare log_trace.
- */
-void log_session(const struct log_trace_session *session, const char *fmt, ...);
-
-extern void __logtrace_vfmtout(const struct log_trace_session *session,
-                               const char *fmt,
-                               va_list argptr);
-
-rt_inline void __logtrace_fmtout(const struct log_trace_session *session,
-                                     const char *fmt, ...)
-{
-    va_list args;
-
-    va_start(args, fmt);
-    __logtrace_vfmtout(session, fmt, args);
-    va_end(args);
-}
-
-/**
- * log with numeric level
- *
- * The prototype of this function is:
- *
- * void log_session_lvl(struct log_trace_session *session,
- *                      int lvl,
- *                      const char *fmt, ...);
- *
- * If the @session is const and @level is greater than @session->lvl, the whole
- * function will be optimized out. This is suitable for performance critical
- * places where in most cases, the log is turned off by level.
- */
-#define log_session_lvl(session, level, fmt, ...)       \
-    do {                                                \
-        if ((level) > (session)->lvl)                   \
-        {                                               \
-            break;                                      \
-        }                                               \
-        __logtrace_fmtout(session, fmt, ##__VA_ARGS__); \
-    } while (0)
-
-/* here comes the global part. All sessions share the some output backend. */
-
-/** get the backend device */
-rt_device_t log_trace_get_device(void);
-
-/** set the backend device */
-rt_err_t log_trace_set_device(const char *device_name);
-
-void log_trace_flush(void);
-
-#ifdef RT_USING_DFS
-/** set the backend to file */
-void log_trace_set_file(const char *filename);
-
-void log_trace_file_init(const char *filename);
-#endif /* RT_USING_DFS */
-
-#endif
-
diff --git a/components/utilities/logtrace/memlog.c b/components/utilities/logtrace/memlog.c
deleted file mode 100644
index ea440c4958..0000000000
--- a/components/utilities/logtrace/memlog.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2013-06-26     Grissiom     the first version
- */
-
-#include <rtthread.h>
-#include <rtdevice.h>
-#include <log_trace.h>
-
-#define PIPE_SZ    2048
-#define PIPE_NAME  "memlog"
-
-static rt_pipe_t *_log_pipe = NULL;
-static rt_uint8_t outbuf[1024];
-void memlog_flush(void)
-{
-    rt_size_t readsz;
-    rt_device_t console;
-
-    console = rt_console_get_device();
-    if (!console) return;
-
-    readsz = rt_device_read((rt_device_t)&(_log_pipe->parent), 0, outbuf, sizeof(outbuf));
-    if (readsz)
-        rt_device_write(console, 0, outbuf, readsz);
-}
-
-int memlog_init(void)
-{
-    _log_pipe = rt_pipe_create(PIPE_NAME, PIPE_SZ);
-    if (_log_pipe == RT_NULL)
-    {
-        rt_kprintf("init pipe device failed.\n");
-        return -1;
-    }
-
-    log_trace_set_device(PIPE_NAME);
-    rt_thread_idle_sethook(memlog_flush);
-    
-    return 0;
-}
-INIT_APP_EXPORT(memlog_init);