[libc][posix] create 'posix' folder and move related files into it

18 files changed, 0 insertions, 3362 deletions

diff --git a/components/libc/pthreads/SConscript b/components/libc/pthreads/SConscript
deleted file mode 100644
index 767b406d4c..0000000000
--- a/components/libc/pthreads/SConscript
+++ /dev/null
@@ -1,22 +0,0 @@
-from building import *
-from utils import VersionCmp
-
-cwd        = GetCurrentDir()
-src        = Glob('*.c')
-CPPPATH    = [cwd]
-CPPDEFINES = []
-
-# only enable POSIX.1b-1993 Real-time extensions
-libc_ver   = GetDepend('LIBC_VERSION')
-try:
-    ver = libc_ver.split(' ')
-    ver = ver[1]
-    if VersionCmp(ver, "2.5.0") == 1:
-        CPPDEFINES = ['_POSIX_C_SOURCE=199309L']
-except :
-    pass
-
-group = DefineGroup('libc', src, 
-    depend = ['RT_USING_PTHREADS', 'RT_USING_LIBC'], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)
-
-Return('group')
diff --git a/components/libc/pthreads/mqueue.c b/components/libc/pthreads/mqueue.c
deleted file mode 100644
index 6840164a68..0000000000
--- a/components/libc/pthreads/mqueue.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-
-#include <string.h>
-#include <sys/signal.h>
-#include "mqueue.h"
-#include "pthread_internal.h"
-
-static mqd_t posix_mq_list = RT_NULL;
-static struct rt_semaphore posix_mq_lock;
-void posix_mq_system_init()
-{
-    rt_sem_init(&posix_mq_lock, "pmq", 1, RT_IPC_FLAG_FIFO);
-}
-
-rt_inline void posix_mq_insert(mqd_t pmq)
-{
-    pmq->next = posix_mq_list;
-    posix_mq_list = pmq;
-}
-
-static void posix_mq_delete(mqd_t pmq)
-{
-    mqd_t iter;
-    if (posix_mq_list == pmq)
-    {
-        posix_mq_list = pmq->next;
-
-        rt_mq_delete(pmq->mq);
-        rt_free(pmq);
-
-        return;
-    }
-    for (iter = posix_mq_list; iter->next != RT_NULL; iter = iter->next)
-    {
-        if (iter->next == pmq)
-        {
-            /* delete this mq */
-            if (pmq->next != RT_NULL)
-                iter->next = pmq->next;
-            else
-                iter->next = RT_NULL;
-
-            /* delete RT-Thread mqueue */
-            rt_mq_delete(pmq->mq);
-            rt_free(pmq);
-
-            return ;
-        }
-    }
-}
-
-static mqd_t posix_mq_find(const char* name)
-{
-    mqd_t iter;
-    rt_object_t object;
-
-    for (iter = posix_mq_list; iter != RT_NULL; iter = iter->next)
-    {
-        object = (rt_object_t)(iter->mq);
-
-        if (strncmp(object->name, name, RT_NAME_MAX) == 0)
-        {
-            return iter;
-        }
-    }
-
-    return RT_NULL;
-}
-
-int mq_setattr(mqd_t                 mqdes,
-               const struct mq_attr *mqstat,
-               struct mq_attr       *omqstat)
-{
-    rt_set_errno(-RT_ERROR);
-
-    return -1;
-}
-RTM_EXPORT(mq_setattr);
-
-int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat)
-{
-    if ((mqdes == RT_NULL) || mqstat == RT_NULL)
-    {
-        rt_set_errno(EBADF);
-
-        return -1;
-    }
-
-    mqstat->mq_maxmsg = mqdes->mq->max_msgs;
-    mqstat->mq_msgsize = mqdes->mq->msg_size;
-    mqstat->mq_curmsgs = 0;
-    mqstat->mq_flags = 0;
-
-    return 0;
-}
-RTM_EXPORT(mq_getattr);
-
-mqd_t mq_open(const char *name, int oflag, ...)
-{
-    mqd_t mqdes;
-    va_list arg;
-    mode_t mode;
-    struct mq_attr *attr = RT_NULL;
-
-    /* lock posix mqueue list */
-    rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
-
-    mqdes = RT_NULL;
-    if (oflag & O_CREAT)
-    {
-        va_start(arg, oflag);
-        mode = (mode_t)va_arg(arg, unsigned int);
-        mode = mode;
-        attr = (struct mq_attr *)va_arg(arg, struct mq_attr *);
-        va_end(arg);
-
-        if (oflag & O_EXCL)
-        {
-            if (posix_mq_find(name) != RT_NULL)
-            {
-                rt_set_errno(EEXIST);
-                goto __return;
-            }
-        }
-        mqdes = (mqd_t) rt_malloc (sizeof(struct mqdes));
-        if (mqdes == RT_NULL)
-        {
-            rt_set_errno(ENFILE);
-            goto __return;
-        }
-
-        /* create RT-Thread message queue */
-        mqdes->mq = rt_mq_create(name, attr->mq_msgsize, attr->mq_maxmsg, RT_IPC_FLAG_FIFO);
-        if (mqdes->mq == RT_NULL) /* create failed */
-        {
-            rt_set_errno(ENFILE);
-            goto __return;
-        }
-        /* initialize reference count */
-        mqdes->refcount = 1;
-        mqdes->unlinked = 0;
-
-        /* insert mq to posix mq list */
-        posix_mq_insert(mqdes);
-    }
-    else
-    {
-        /* find mqueue */
-        mqdes = posix_mq_find(name);
-        if (mqdes != RT_NULL)
-        {
-            mqdes->refcount ++; /* increase reference count */
-        }
-        else
-        {
-            rt_set_errno(ENOENT);
-            goto __return;
-        }
-    }
-    rt_sem_release(&posix_mq_lock);
-
-    return mqdes;
-
-__return:
-    /* release lock */
-    rt_sem_release(&posix_mq_lock);
-
-    /* release allocated memory */
-    if (mqdes != RT_NULL)
-    {
-        if (mqdes->mq != RT_NULL)
-        {
-            /* delete RT-Thread message queue */
-            rt_mq_delete(mqdes->mq);
-        }
-        rt_free(mqdes);
-    }
-    return RT_NULL;
-}
-RTM_EXPORT(mq_open);
-
-ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio)
-{
-    rt_err_t result;
-
-    if ((mqdes == RT_NULL) || (msg_ptr == RT_NULL))
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, RT_WAITING_FOREVER);
-    if (result == RT_EOK)
-        return msg_len;
-
-    rt_set_errno(EBADF);
-    return -1;
-}
-RTM_EXPORT(mq_receive);
-
-int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio)
-{
-    rt_err_t result;
-
-    if ((mqdes == RT_NULL) || (msg_ptr == RT_NULL))
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    result = rt_mq_send(mqdes->mq, (void*)msg_ptr, msg_len);
-    if (result == RT_EOK)
-        return 0;
-
-    rt_set_errno(EBADF);
-
-    return -1;
-}
-RTM_EXPORT(mq_send);
-
-ssize_t mq_timedreceive(mqd_t                  mqdes,
-                        char                  *msg_ptr,
-                        size_t                 msg_len,
-                        unsigned              *msg_prio,
-                        const struct timespec *abs_timeout)
-{
-    int tick;
-    rt_err_t result;
-
-    /* parameters check */
-    if ((mqdes == RT_NULL) || (msg_ptr == RT_NULL))
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    tick = rt_timespec_to_tick(abs_timeout);
-
-    result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, tick);
-    if (result == RT_EOK)
-        return msg_len;
-
-    if (result == -RT_ETIMEOUT)
-        rt_set_errno(ETIMEDOUT);
-    else
-        rt_set_errno(EBADMSG);
-
-    return -1;
-}
-RTM_EXPORT(mq_timedreceive);
-
-int mq_timedsend(mqd_t                  mqdes,
-                 const char            *msg_ptr,
-                 size_t                 msg_len,
-                 unsigned               msg_prio,
-                 const struct timespec *abs_timeout)
-{
-    /* RT-Thread does not support timed send */
-    return mq_send(mqdes, msg_ptr, msg_len, msg_prio);
-}
-RTM_EXPORT(mq_timedsend);
-
-int mq_notify(mqd_t mqdes, const struct sigevent *notification)
-{
-    rt_set_errno(-RT_ERROR);
-
-    return -1;
-}
-RTM_EXPORT(mq_notify);
-
-int mq_close(mqd_t mqdes)
-{
-    if (mqdes == RT_NULL)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    /* lock posix mqueue list */
-    rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
-    mqdes->refcount --;
-    if (mqdes->refcount == 0)
-    {
-        /* delete from posix mqueue list */
-        if (mqdes->unlinked)
-            posix_mq_delete(mqdes);
-    }
-    rt_sem_release(&posix_mq_lock);
-
-    return 0;
-}
-RTM_EXPORT(mq_close);
-
-int mq_unlink(const char *name)
-{
-    mqd_t pmq;
-
-    /* lock posix mqueue list */
-    rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
-    pmq = posix_mq_find(name);
-    if (pmq != RT_NULL)
-    {
-        pmq->unlinked = 1;
-        if (pmq->refcount == 0)
-        {
-            /* remove this mqueue */
-            posix_mq_delete(pmq);
-        }
-        rt_sem_release(&posix_mq_lock);
-
-        return 0;
-    }
-    rt_sem_release(&posix_mq_lock);
-
-    /* no this entry */
-    rt_set_errno(ENOENT);
-
-    return -1;
-}
-RTM_EXPORT(mq_unlink);
diff --git a/components/libc/pthreads/mqueue.h b/components/libc/pthreads/mqueue.h
deleted file mode 100644
index 5152bfad29..0000000000
--- a/components/libc/pthreads/mqueue.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-
-#ifndef __MQUEUE_H__
-#define __MQUEUE_H__
-
-#include <rtthread.h>
-#include <pthread.h>
-
-struct mqdes
-{
-    /* reference count and unlinked */
-    rt_uint16_t refcount;
-    rt_uint16_t unlinked;
-
-    /* RT-Thread message queue */
-    rt_mq_t mq;
-    /* next posix mqueue */
-    struct mqdes* next;
-};
-typedef struct mqdes* mqd_t;
-
-struct mq_attr
-{
-    long mq_flags;      /* Message queue flags. */
-    long mq_maxmsg;     /* Maximum number of messages. */
-    long mq_msgsize;    /* Maximum message size. */
-    long mq_curmsgs;    /* Number of messages currently queued. */
-};
-
-int     mq_close(mqd_t mqdes);
-int     mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
-int     mq_notify(mqd_t mqdes, const struct sigevent *notification);
-mqd_t   mq_open(const char *name, int oflag, ...);
-ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio);
-int     mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio);
-int     mq_setattr(mqd_t                 mqdes,
-                   const struct mq_attr *mqstat,
-                   struct mq_attr       *omqstat);
-ssize_t mq_timedreceive(mqd_t                  mqdes,
-                        char                  *msg_ptr,
-                        size_t                 msg_len,
-                        unsigned              *msg_prio,
-                        const struct timespec *abs_timeout);
-int     mq_timedsend(mqd_t                  mqdes,
-                     const char            *msg_ptr,
-                     size_t                 msg_len,
-                     unsigned               msg_prio,
-                     const struct timespec *abs_timeout);
-
-int     mq_unlink(const char *name);
-
-#endif
diff --git a/components/libc/pthreads/posix_types.h b/components/libc/pthreads/posix_types.h
deleted file mode 100644
index 5838e8b370..0000000000
--- a/components/libc/pthreads/posix_types.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2013-12-23     Bernard      Add the checking for ESHUTDOWN
- */
-
-#ifndef __POSIX_TYPES_H__
-#define __POSIX_TYPES_H__
-
-#include <rtthread.h>
-
-#include <stddef.h>
-#include <stdarg.h>
-#include <string.h>
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <sys/errno.h>
-#include <fcntl.h>
-
-#endif
-
diff --git a/components/libc/pthreads/pthread.c b/components/libc/pthreads/pthread.c
deleted file mode 100644
index b0bf39dff6..0000000000
--- a/components/libc/pthreads/pthread.c
+++ /dev/null
@@ -1,748 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2018-01-26     Bernard      Fix pthread_detach issue for a none-joinable
- *                             thread.
- * 2019-02-07     Bernard      Add _pthread_destroy to release pthread resource.
- */
-
-#include <rthw.h>
-#include <pthread.h>
-#include <sched.h>
-#include <sys/time.h>
-#include "pthread_internal.h"
-
-RT_DEFINE_SPINLOCK(pth_lock);
-_pthread_data_t *pth_table[PTHREAD_NUM_MAX] = {NULL};
-
-_pthread_data_t *_pthread_get_data(pthread_t thread)
-{
-    RT_DECLARE_SPINLOCK(pth_lock);
-    _pthread_data_t *ptd;
-
-    if (thread >= PTHREAD_NUM_MAX) return NULL;
-
-    rt_hw_spin_lock(&pth_lock);
-    ptd = pth_table[thread];
-    rt_hw_spin_unlock(&pth_lock);
-
-    if (ptd && ptd->magic == PTHREAD_MAGIC) return ptd;
-
-    return NULL;
-}
-
-pthread_t _pthread_data_get_pth(_pthread_data_t *ptd)
-{
-    int index;
-    RT_DECLARE_SPINLOCK(pth_lock);
-
-    rt_hw_spin_lock(&pth_lock);
-    for (index = 0; index < PTHREAD_NUM_MAX; index ++)
-    {
-        if (pth_table[index] == ptd) break;
-    }
-    rt_hw_spin_unlock(&pth_lock);
-
-    return index;
-}
-
-pthread_t _pthread_data_create(void)
-{
-    int index;
-    _pthread_data_t *ptd = NULL;
-    RT_DECLARE_SPINLOCK(pth_lock);
-
-    ptd = (_pthread_data_t*)rt_malloc(sizeof(_pthread_data_t));
-    if (!ptd) return PTHREAD_NUM_MAX;
-
-    memset(ptd, 0x0, sizeof(_pthread_data_t));
-    ptd->canceled = 0;
-    ptd->cancelstate = PTHREAD_CANCEL_DISABLE;
-    ptd->canceltype = PTHREAD_CANCEL_DEFERRED;
-    ptd->magic = PTHREAD_MAGIC;
-
-    rt_hw_spin_lock(&pth_lock);
-    for (index = 0; index < PTHREAD_NUM_MAX; index ++)
-    {
-        if (pth_table[index] == NULL)
-        {
-            pth_table[index] = ptd;
-            break;
-        }
-    }
-    rt_hw_spin_unlock(&pth_lock);
-
-    /* full of pthreads, clean magic and release ptd */
-    if (index == PTHREAD_NUM_MAX)
-    {
-        ptd->magic = 0x0;
-        rt_free(ptd);
-    }
-
-    return index;
-}
-
-void _pthread_data_destroy(pthread_t pth)
-{
-    RT_DECLARE_SPINLOCK(pth_lock);
-
-    extern _pthread_key_data_t _thread_keys[PTHREAD_KEY_MAX];
-    _pthread_data_t *ptd = _pthread_get_data(pth);
-    if (ptd)
-    {
-        /* destruct thread local key */
-        if (ptd->tls != RT_NULL)
-        {
-            void *data;
-            rt_uint32_t index;
-            for (index = 0; index < PTHREAD_KEY_MAX; index ++)
-            {
-                if (_thread_keys[index].is_used)
-                {
-                    data = ptd->tls[index];
-                    if (data && _thread_keys[index].destructor)
-                        _thread_keys[index].destructor(data);
-                }
-            }
-
-            /* release tls area */
-            rt_free(ptd->tls);
-            ptd->tls = RT_NULL;
-        }
-
-        /* remove from pthread table */
-        rt_hw_spin_lock(&pth_lock);
-        pth_table[pth] = NULL;
-        rt_hw_spin_unlock(&pth_lock);
-
-        /* delete joinable semaphore */
-        if (ptd->joinable_sem != RT_NULL)
-            rt_sem_delete(ptd->joinable_sem);
-
-        /* release thread resource */
-        if (ptd->attr.stackaddr == RT_NULL)
-        {
-            /* release thread allocated stack */
-            if (ptd->tid)
-            {
-                rt_free(ptd->tid->stack_addr);
-            }
-        }
-        /* clean stack addr pointer */
-        if (ptd->tid)
-            ptd->tid->stack_addr = RT_NULL;
-
-        /*
-        * if this thread create the local thread data,
-        * delete it
-        */
-        if (ptd->tls != RT_NULL) rt_free(ptd->tls);
-        rt_free(ptd->tid);
-
-        /* clean magic */
-        ptd->magic = 0x0;
-
-        /* free ptd */
-        rt_free(ptd);
-    }
-}
-
-int pthread_system_init(void)
-{
-    /* initialize key area */
-    pthread_key_system_init();
-    /* initialize posix mqueue */
-    posix_mq_system_init();
-    /* initialize posix semaphore */
-    posix_sem_system_init();
-
-    return 0;
-}
-INIT_COMPONENT_EXPORT(pthread_system_init);
-
-static void _pthread_destroy(_pthread_data_t *ptd)
-{
-    pthread_t pth = _pthread_data_get_pth(ptd);
-    if (pth != PTHREAD_NUM_MAX)
-    {
-        _pthread_data_destroy(pth);
-    }
-
-    return;
-}
-
-static void _pthread_cleanup(rt_thread_t tid)
-{
-    _pthread_data_t *ptd;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)tid->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    /* clear cleanup function */
-    tid->cleanup = RT_NULL;
-    if (ptd->attr.detachstate == PTHREAD_CREATE_JOINABLE)
-    {
-        rt_sem_release(ptd->joinable_sem);
-    }
-    else
-    {
-        /* release pthread resource */
-        _pthread_destroy(ptd);
-    }
-}
-
-static void pthread_entry_stub(void *parameter)
-{
-    void *value;
-    _pthread_data_t *ptd;
-
-    ptd = (_pthread_data_t *)parameter;
-
-    /* execute pthread entry */
-    value = ptd->thread_entry(ptd->thread_parameter);
-    /* set value */
-    ptd->return_value = value;
-}
-
-int pthread_create(pthread_t            *pid,
-                   const pthread_attr_t *attr,
-                   void *(*start)(void *), void *parameter)
-{
-    int ret = 0;
-    void *stack;
-    char name[RT_NAME_MAX];
-    static rt_uint16_t pthread_number = 0;
-
-    pthread_t pth_id;
-    _pthread_data_t *ptd;
-
-    /* pid shall be provided */
-    RT_ASSERT(pid != RT_NULL);
-
-    /* allocate posix thread data */
-    pth_id = _pthread_data_create();
-    if (pth_id == PTHREAD_NUM_MAX)
-    {
-        ret = ENOMEM;
-        goto __exit;
-    }
-    /* get pthread data */
-    ptd = _pthread_get_data(pth_id);
-
-    RT_ASSERT(ptd != RT_NULL);
-
-    if (attr != RT_NULL)
-    {
-        ptd->attr = *attr;
-    }
-    else
-    {
-        /* use default attribute */
-        pthread_attr_init(&ptd->attr);
-    }
-
-    if (ptd->attr.stacksize == 0)
-    {
-        ret = EINVAL;
-        goto __exit;
-    }
-
-    rt_snprintf(name, sizeof(name), "pth%02d", pthread_number ++);
-
-    /* pthread is a static thread object */
-    ptd->tid = (rt_thread_t) rt_malloc(sizeof(struct rt_thread));
-    if (ptd->tid == RT_NULL)
-    {
-        ret = ENOMEM;
-        goto __exit;
-    }
-    memset(ptd->tid, 0, sizeof(struct rt_thread));
-
-    if (ptd->attr.detachstate == PTHREAD_CREATE_JOINABLE)
-    {
-        ptd->joinable_sem = rt_sem_create(name, 0, RT_IPC_FLAG_FIFO);
-        if (ptd->joinable_sem == RT_NULL)
-        {
-            ret = ENOMEM;
-            goto __exit;
-        }
-    }
-    else
-    {
-        ptd->joinable_sem = RT_NULL;
-    }
-
-    /* set parameter */
-    ptd->thread_entry = start;
-    ptd->thread_parameter = parameter;
-
-    /* stack */
-    if (ptd->attr.stackaddr == 0)
-    {
-        stack = (void *)rt_malloc(ptd->attr.stacksize);
-    }
-    else
-    {
-        stack = (void *)(ptd->attr.stackaddr);
-    }
-
-    if (stack == RT_NULL)
-    {
-        ret = ENOMEM;
-        goto __exit;
-    }
-
-    /* initial this pthread to system */
-    if (rt_thread_init(ptd->tid, name, pthread_entry_stub, ptd,
-                       stack, ptd->attr.stacksize,
-                       ptd->attr.schedparam.sched_priority, 20) != RT_EOK)
-    {
-        ret = EINVAL;
-        goto __exit;
-    }
-
-    /* set pthread id */
-    *pid = pth_id;
-
-    /* set pthread cleanup function and ptd data */
-    ptd->tid->cleanup = _pthread_cleanup;
-    ptd->tid->user_data = (rt_ubase_t)ptd;
-
-    /* start thread */
-    if (rt_thread_startup(ptd->tid) == RT_EOK)
-        return 0;
-
-    /* start thread failed */
-    rt_thread_detach(ptd->tid);
-    ret = EINVAL;
-
-__exit:
-    if (pth_id != PTHREAD_NUM_MAX)
-        _pthread_data_destroy(pth_id);
-    return ret;
-}
-RTM_EXPORT(pthread_create);
-
-int pthread_detach(pthread_t thread)
-{
-    int ret = 0;
-    _pthread_data_t *ptd = _pthread_get_data(thread);
-    if (ptd == RT_NULL)
-    {
-        /* invalid pthread id */
-        ret = EINVAL;
-        goto __exit;
-    }
-
-    rt_enter_critical();
-    if (ptd->attr.detachstate == PTHREAD_CREATE_DETACHED)
-    {
-        /* The implementation has detected that the value specified by thread does not refer
-         * to a joinable thread.
-         */
-        ret = EINVAL;
-        goto __exit;
-    }
-
-    if ((ptd->tid->stat & RT_THREAD_STAT_MASK) == RT_THREAD_CLOSE)
-    {
-        /* this defunct pthread is not handled by idle */
-        if (rt_sem_trytake(ptd->joinable_sem) != RT_EOK)
-        {
-            rt_sem_release(ptd->joinable_sem);
-
-            /* change to detach state */
-            ptd->attr.detachstate = PTHREAD_CREATE_DETACHED;
-
-            /* detach joinable semaphore */
-            if (ptd->joinable_sem)
-            {
-                rt_sem_delete(ptd->joinable_sem);
-                ptd->joinable_sem = RT_NULL;
-            }
-        }
-        else
-        {
-            /* destroy this pthread */
-            _pthread_destroy(ptd);
-        }
-
-        goto __exit;
-    }
-    else
-    {
-        /* change to detach state */
-        ptd->attr.detachstate = PTHREAD_CREATE_DETACHED;
-
-        /* detach joinable semaphore */
-        if (ptd->joinable_sem)
-        {
-            rt_sem_delete(ptd->joinable_sem);
-            ptd->joinable_sem = RT_NULL;
-        }
-    }
-
-__exit:
-    rt_exit_critical();
-    return ret;
-}
-RTM_EXPORT(pthread_detach);
-
-int pthread_join(pthread_t thread, void **value_ptr)
-{
-    _pthread_data_t *ptd;
-    rt_err_t result;
-
-    ptd = _pthread_get_data(thread);
-
-    if (ptd == RT_NULL)
-    {
-        return EINVAL; /* invalid pthread id */
-    }
-
-    if (ptd && ptd->tid == rt_thread_self())
-    {
-        /* join self */
-        return EDEADLK;
-    }
-
-    if (ptd->attr.detachstate == PTHREAD_CREATE_DETACHED)
-    {
-        return EINVAL; /* join on a detached pthread */
-    }
-
-    result = rt_sem_take(ptd->joinable_sem, RT_WAITING_FOREVER);
-    if (result == RT_EOK)
-    {
-        /* get return value */
-        if (value_ptr != RT_NULL)
-            *value_ptr = ptd->return_value;
-
-        /* destroy this pthread */
-        _pthread_destroy(ptd);
-    }
-    else
-    {
-        return ESRCH;
-    }
-
-    return 0;
-}
-RTM_EXPORT(pthread_join);
-
-pthread_t pthread_self (void)
-{
-    rt_thread_t tid;
-    _pthread_data_t *ptd;
-
-    tid = rt_thread_self();
-    if (tid == NULL) return PTHREAD_NUM_MAX;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    return _pthread_data_get_pth(ptd);
-}
-RTM_EXPORT(pthread_self);
-
-void pthread_exit(void *value)
-{
-    _pthread_data_t *ptd;
-    _pthread_cleanup_t *cleanup;
-    extern _pthread_key_data_t _thread_keys[PTHREAD_KEY_MAX];
-
-    if (rt_thread_self() == NULL) return;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-
-    rt_enter_critical();
-    /* disable cancel */
-    ptd->cancelstate = PTHREAD_CANCEL_DISABLE;
-    /* set return value */
-    ptd->return_value = value;
-    rt_exit_critical();
-
-    /* invoke pushed cleanup */
-    while (ptd->cleanup != RT_NULL)
-    {
-        cleanup = ptd->cleanup;
-        ptd->cleanup = cleanup->next;
-
-        cleanup->cleanup_func(cleanup->parameter);
-        /* release this cleanup function */
-        rt_free(cleanup);
-    }
-
-    /* destruct thread local key */
-    if (ptd->tls != RT_NULL)
-    {
-        void *data;
-        rt_uint32_t index;
-
-        for (index = 0; index < PTHREAD_KEY_MAX; index ++)
-        {
-            if (_thread_keys[index].is_used)
-            {
-                data = ptd->tls[index];
-                if (data && _thread_keys[index].destructor)
-                    _thread_keys[index].destructor(data);
-            }
-        }
-
-        /* release tls area */
-        rt_free(ptd->tls);
-        ptd->tls = RT_NULL;
-    }
-
-    /* detach thread */
-    rt_thread_detach(ptd->tid);
-    /* reschedule thread */
-    rt_schedule();
-}
-RTM_EXPORT(pthread_exit);
-
-int pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
-{
-    RT_ASSERT(once_control != RT_NULL);
-    RT_ASSERT(init_routine != RT_NULL);
-
-    rt_enter_critical();
-    if (!(*once_control))
-    {
-        /* call routine once */
-        *once_control = 1;
-        rt_exit_critical();
-
-        init_routine();
-    }
-    rt_exit_critical();
-
-    return 0;
-}
-RTM_EXPORT(pthread_once);
-
-int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void))
-{
-    return EOPNOTSUPP;
-}
-RTM_EXPORT(pthread_atfork);
-
-int pthread_kill(pthread_t thread, int sig)
-{
-#ifdef RT_USING_SIGNALS
-    _pthread_data_t *ptd;
-    int ret;
-
-    ptd = _pthread_get_data(thread);
-    if (ptd)
-    {
-        ret = rt_thread_kill(ptd->tid, sig);
-        if (ret == -RT_EINVAL)
-        {
-            return EINVAL;
-        }
-
-        return ret;
-    }
-
-    return ESRCH;
-#else
-    return ENOSYS;
-#endif
-}
-RTM_EXPORT(pthread_kill);
-
-#ifdef RT_USING_SIGNALS
-int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset)
-{
-    return sigprocmask(how, set, oset);
-}
-#endif
-
-void pthread_cleanup_pop(int execute)
-{
-    _pthread_data_t *ptd;
-    _pthread_cleanup_t *cleanup;
-
-    if (rt_thread_self() == NULL) return;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    if (execute)
-    {
-        rt_enter_critical();
-        cleanup = ptd->cleanup;
-        if (cleanup)
-            ptd->cleanup = cleanup->next;
-        rt_exit_critical();
-
-        if (cleanup)
-        {
-            cleanup->cleanup_func(cleanup->parameter);
-
-            rt_free(cleanup);
-        }
-    }
-}
-RTM_EXPORT(pthread_cleanup_pop);
-
-void pthread_cleanup_push(void (*routine)(void *), void *arg)
-{
-    _pthread_data_t *ptd;
-    _pthread_cleanup_t *cleanup;
-
-    if (rt_thread_self() == NULL) return;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    cleanup = (_pthread_cleanup_t *)rt_malloc(sizeof(_pthread_cleanup_t));
-    if (cleanup != RT_NULL)
-    {
-        cleanup->cleanup_func = routine;
-        cleanup->parameter = arg;
-
-        rt_enter_critical();
-        cleanup->next = ptd->cleanup;
-        ptd->cleanup = cleanup;
-        rt_exit_critical();
-    }
-}
-RTM_EXPORT(pthread_cleanup_push);
-
-/*
- * According to IEEE Std 1003.1, 2004 Edition , following pthreads
- * interface support cancellation point:
- * mq_receive()
- * mq_send()
- * mq_timedreceive()
- * mq_timedsend()
- * msgrcv()
- * msgsnd()
- * msync()
- * pthread_cond_timedwait()
- * pthread_cond_wait()
- * pthread_join()
- * pthread_testcancel()
- * sem_timedwait()
- * sem_wait()
- *
- * A cancellation point may also occur when a thread is
- * executing the following functions:
- * pthread_rwlock_rdlock()
- * pthread_rwlock_timedrdlock()
- * pthread_rwlock_timedwrlock()
- * pthread_rwlock_wrlock()
- *
- * The pthread_cancel(), pthread_setcancelstate(), and pthread_setcanceltype()
- * functions are defined to be async-cancel safe.
- */
-
-int pthread_setcancelstate(int state, int *oldstate)
-{
-    _pthread_data_t *ptd;
-
-    if (rt_thread_self() == NULL) return EINVAL;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    if ((state == PTHREAD_CANCEL_ENABLE) || (state == PTHREAD_CANCEL_DISABLE))
-    {
-        if (oldstate)
-            *oldstate = ptd->cancelstate;
-        ptd->cancelstate = state;
-
-        return 0;
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_setcancelstate);
-
-int pthread_setcanceltype(int type, int *oldtype)
-{
-    _pthread_data_t *ptd;
-
-    if (rt_thread_self() == NULL) return EINVAL;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    if ((type != PTHREAD_CANCEL_DEFERRED) && (type != PTHREAD_CANCEL_ASYNCHRONOUS))
-        return EINVAL;
-
-    if (oldtype)
-        *oldtype = ptd->canceltype;
-    ptd->canceltype = type;
-
-    return 0;
-}
-RTM_EXPORT(pthread_setcanceltype);
-
-void pthread_testcancel(void)
-{
-    int cancel = 0;
-    _pthread_data_t *ptd;
-
-    if (rt_thread_self() == NULL) return;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != RT_NULL);
-
-    if (ptd->cancelstate == PTHREAD_CANCEL_ENABLE)
-        cancel = ptd->canceled;
-    if (cancel)
-        pthread_exit((void *)PTHREAD_CANCELED);
-}
-RTM_EXPORT(pthread_testcancel);
-
-int pthread_cancel(pthread_t thread)
-{
-    _pthread_data_t *ptd;
-
-    /* get posix thread data */
-    ptd = _pthread_get_data(thread);
-    if (ptd == RT_NULL)
-    {
-        return EINVAL;
-    }
-
-    /* cancel self */
-    if (ptd->tid == rt_thread_self())
-        return 0;
-
-    /* set canceled */
-    if (ptd->cancelstate == PTHREAD_CANCEL_ENABLE)
-    {
-        ptd->canceled = 1;
-        if (ptd->canceltype == PTHREAD_CANCEL_ASYNCHRONOUS)
-        {
-            /*
-             * to detach thread.
-             * this thread will be removed from scheduler list
-             * and because there is a cleanup function in the
-             * thread (pthread_cleanup), it will move to defunct
-             * thread list and wait for handling in idle thread.
-             */
-            rt_thread_detach(ptd->tid);
-        }
-    }
-
-    return 0;
-}
-RTM_EXPORT(pthread_cancel);
-
diff --git a/components/libc/pthreads/pthread.h b/components/libc/pthreads/pthread.h
deleted file mode 100644
index 177b2539c5..0000000000
--- a/components/libc/pthreads/pthread.h
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#ifndef __PTHREAD_H__
-#define __PTHREAD_H__
-
-#include <rtthread.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <posix_types.h>
-#include <sched.h>
-
-#define PTHREAD_KEY_MAX             8
-
-#define PTHREAD_COND_INITIALIZER    {-1, 0}
-#define PTHREAD_RWLOCK_INITIALIZER  {-1, 0}
-#define PTHREAD_MUTEX_INITIALIZER   {-1, 0}
-
-#define PTHREAD_CREATE_JOINABLE     0x00
-#define PTHREAD_CREATE_DETACHED     0x01
-
-#define PTHREAD_EXPLICIT_SCHED      0
-#define PTHREAD_INHERIT_SCHED       1
-
-typedef long pthread_t;
-typedef long pthread_condattr_t;
-typedef long pthread_rwlockattr_t;
-typedef long pthread_mutexattr_t;
-typedef long pthread_barrierattr_t;
-
-typedef int pthread_key_t;
-typedef int pthread_once_t;
-
-enum
-{
-    PTHREAD_CANCEL_ASYNCHRONOUS = 0,
-    PTHREAD_CANCEL_ENABLE,
-    PTHREAD_CANCEL_DEFERRED,
-    PTHREAD_CANCEL_DISABLE,
-    PTHREAD_CANCELED
-};
-
-enum
-{
-    PTHREAD_MUTEX_NORMAL = 0,
-    PTHREAD_MUTEX_RECURSIVE = 1,
-    PTHREAD_MUTEX_ERRORCHECK = 2,
-    PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK,
-    PTHREAD_MUTEX_RECURSIVE_NP  = PTHREAD_MUTEX_RECURSIVE,
-    PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
-};
-
-/* init value for pthread_once_t */
-#define PTHREAD_ONCE_INIT       0
-
-enum
-{
-    PTHREAD_PRIO_INHERIT =0,
-    PTHREAD_PRIO_NONE,
-    PTHREAD_PRIO_PROTECT,
-};
-
-#define PTHREAD_PROCESS_PRIVATE  0
-#define PTHREAD_PROCESS_SHARED   1
-
-#define PTHREAD_SCOPE_PROCESS   0
-#define PTHREAD_SCOPE_SYSTEM    1
-
-struct sched_param
-{
-    int sched_priority;
-};
-
-struct pthread_attr
-{
-    void* stackaddr;        /* stack address of thread */
-    int   stacksize;        /* stack size of thread */
-
-    int   inheritsched;     /* Inherit parent prio/policy */
-    int   schedpolicy;      /* scheduler policy */
-    struct sched_param schedparam; /* sched parameter */
-
-    int   detachstate;      /* detach state */
-};
-typedef struct pthread_attr pthread_attr_t;
-
-struct pthread_mutex
-{
-    pthread_mutexattr_t attr;
-    struct rt_mutex lock;
-};
-typedef struct pthread_mutex pthread_mutex_t;
-
-struct pthread_cond
-{
-    pthread_condattr_t attr;
-    struct rt_semaphore sem;
-};
-typedef struct pthread_cond pthread_cond_t;
-
-struct pthread_rwlock
-{
-    pthread_rwlockattr_t attr;
-
-    pthread_mutex_t      rw_mutex;          /* basic lock on this struct */
-    pthread_cond_t       rw_condreaders;    /* for reader threads waiting */
-    pthread_cond_t       rw_condwriters;    /* for writer threads waiting */
-
-    int rw_nwaitreaders;    /* the number of reader threads waiting */
-    int rw_nwaitwriters;    /* the number of writer threads waiting */
-    int rw_refcount;    /* 0: unlocked, -1: locked by writer, > 0 locked by n readers */
-};
-typedef struct pthread_rwlock pthread_rwlock_t;
-
-/* spinlock implementation, (ADVANCED REALTIME THREADS)*/
-struct pthread_spinlock
-{
-    int lock;
-};
-typedef struct pthread_spinlock pthread_spinlock_t;
-
-struct pthread_barrier
-{
-    int count;
-    pthread_cond_t cond;
-    pthread_mutex_t mutex;
-};
-typedef struct pthread_barrier pthread_barrier_t;
-
-/* pthread thread interface */
-int pthread_attr_destroy(pthread_attr_t *attr);
-int pthread_attr_init(pthread_attr_t *attr);
-int pthread_attr_setdetachstate(pthread_attr_t *attr, int state);
-int pthread_attr_getdetachstate(pthread_attr_t const *attr, int *state);
-int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy);
-int pthread_attr_getschedpolicy(pthread_attr_t const *attr, int *policy);
-int pthread_attr_setschedparam(pthread_attr_t *attr,struct sched_param const *param);
-int pthread_attr_getschedparam(pthread_attr_t const *attr,struct sched_param *param);
-int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stack_size);
-int pthread_attr_getstacksize(pthread_attr_t const *attr, size_t *stack_size);
-int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stack_addr);
-int pthread_attr_getstackaddr(pthread_attr_t const *attr, void **stack_addr);
-int pthread_attr_setstack(pthread_attr_t *attr,
-                          void           *stack_base,
-                          size_t          stack_size);
-int pthread_attr_getstack(pthread_attr_t const *attr,
-                          void                **stack_base,
-                          size_t               *stack_size);
-int pthread_attr_setguardsize(pthread_attr_t *attr, size_t guard_size);
-int pthread_attr_getguardsize(pthread_attr_t const *attr, size_t *guard_size);
-int pthread_attr_setscope(pthread_attr_t *attr, int scope);
-int pthread_attr_getscope(pthread_attr_t const *attr);
-int pthread_system_init(void);
-int pthread_create (pthread_t *tid, const pthread_attr_t *attr,
-    void *(*start) (void *), void *arg);
-
-int pthread_detach (pthread_t thread);
-int pthread_join (pthread_t thread, void **value_ptr);
-
-rt_inline int pthread_equal (pthread_t t1, pthread_t t2)
-{
-    return t1 == t2;
-}
-
-pthread_t pthread_self (void);
-
-void pthread_exit (void *value_ptr);
-int pthread_once(pthread_once_t * once_control, void (*init_routine) (void));
-
-/* pthread cleanup */
-void pthread_cleanup_pop(int execute);
-void pthread_cleanup_push(void (*routine)(void*), void *arg);
-
-/* pthread cancel */
-int pthread_cancel(pthread_t thread);
-void pthread_testcancel(void);
-int pthread_setcancelstate(int state, int *oldstate);
-int pthread_setcanceltype(int type, int *oldtype);
-
-int pthread_atfork(void (*prepare)(void), void (*parent)(void), void (*child)(void));
-int pthread_kill(pthread_t thread, int sig);
-
-/* pthread mutex interface */
-int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
-int pthread_mutex_destroy(pthread_mutex_t *mutex);
-int pthread_mutex_lock(pthread_mutex_t *mutex);
-int pthread_mutex_unlock(pthread_mutex_t *mutex);
-int pthread_mutex_trylock(pthread_mutex_t *mutex);
-
-int pthread_mutexattr_init(pthread_mutexattr_t *attr);
-int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
-int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type);
-int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type);
-int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int  pshared);
-int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared);
-
-/* pthread condition interface */
-int pthread_condattr_destroy(pthread_condattr_t *attr);
-int pthread_condattr_init(pthread_condattr_t *attr);
-
-/* ADVANCED REALTIME feature in IEEE Std 1003.1, 2004 Edition */
-int pthread_condattr_getclock(const pthread_condattr_t *attr,
-                              clockid_t                *clock_id);
-int pthread_condattr_setclock(pthread_condattr_t *attr,
-                              clockid_t           clock_id);
-
-int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr);
-int pthread_cond_destroy(pthread_cond_t *cond);
-int pthread_cond_broadcast(pthread_cond_t *cond);
-int pthread_cond_signal(pthread_cond_t *cond);
-
-int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
-int pthread_cond_timedwait(pthread_cond_t        *cond,
-                           pthread_mutex_t       *mutex,
-                           const struct timespec *abstime);
-
-/* pthread rwlock interface */
-int pthread_rwlockattr_init (pthread_rwlockattr_t *attr);
-int pthread_rwlockattr_destroy (pthread_rwlockattr_t *attr);
-int pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *attr, int *pshared);
-int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *attr, int pshared);
-
-int pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
-int pthread_rwlock_destroy (pthread_rwlock_t *rwlock);
-
-int pthread_rwlock_rdlock (pthread_rwlock_t *rwlock);
-int pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock);
-
-int pthread_rwlock_timedrdlock (pthread_rwlock_t *rwlock, const struct timespec *abstime);
-int pthread_rwlock_timedwrlock (pthread_rwlock_t *rwlock, const struct timespec *abstime);
-
-int pthread_rwlock_unlock (pthread_rwlock_t *rwlock);
-
-int pthread_rwlock_wrlock (pthread_rwlock_t *rwlock);
-int pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock);
-
-/* pthread spinlock interface */
-int pthread_spin_init (pthread_spinlock_t *lock, int pshared);
-int pthread_spin_destroy (pthread_spinlock_t *lock);
-
-int pthread_spin_lock (pthread_spinlock_t * lock);
-int pthread_spin_trylock (pthread_spinlock_t * lock);
-int pthread_spin_unlock (pthread_spinlock_t * lock);
-
-/* pthread barrier interface */
-int pthread_barrierattr_destroy(pthread_barrierattr_t *attr);
-int pthread_barrierattr_init(pthread_barrierattr_t *attr);
-int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, int *pshared);
-int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared);
-
-int pthread_barrier_destroy(pthread_barrier_t *barrier);
-int pthread_barrier_init(pthread_barrier_t           *barrier,
-                         const pthread_barrierattr_t *attr,
-                         unsigned                     count);
-
-int pthread_barrier_wait(pthread_barrier_t *barrier);
-
-int pthread_setspecific(pthread_key_t key, const void *value);
-void *pthread_getspecific(pthread_key_t key);
-int pthread_key_create(pthread_key_t *key, void (*destructor)(void *));
-int pthread_key_delete(pthread_key_t key);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/components/libc/pthreads/pthread_attr.c b/components/libc/pthreads/pthread_attr.c
deleted file mode 100644
index 4aedf5a90d..0000000000
--- a/components/libc/pthreads/pthread_attr.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <rtthread.h>
-#include "pthread.h"
-#include "sched.h"
-#include <string.h>
-
-#define DEFAULT_STACK_SIZE  2048
-#define DEFAULT_PRIORITY    (RT_THREAD_PRIORITY_MAX/2 + RT_THREAD_PRIORITY_MAX/4)
-
-const pthread_attr_t pthread_default_attr =
-{
-    0,                          /* stack base */
-    DEFAULT_STACK_SIZE,         /* stack size */
-
-    PTHREAD_INHERIT_SCHED,      /* Inherit parent prio/policy */
-    SCHED_FIFO,                 /* scheduler policy */
-    {
-        DEFAULT_PRIORITY,       /* scheduler priority */
-    },
-    PTHREAD_CREATE_JOINABLE,    /* detach state */
-};
-
-int pthread_attr_init(pthread_attr_t *attr)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    *attr = pthread_default_attr;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_init);
-
-int pthread_attr_destroy(pthread_attr_t *attr)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    memset(attr, 0, sizeof(pthread_attr_t));
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_destroy);
-
-int pthread_attr_setdetachstate(pthread_attr_t *attr, int state)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    if (state != PTHREAD_CREATE_JOINABLE && state != PTHREAD_CREATE_DETACHED)
-        return EINVAL;
-
-    attr->detachstate = state;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_setdetachstate);
-
-int pthread_attr_getdetachstate(pthread_attr_t const *attr, int *state)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    *state = (int)attr->detachstate;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_getdetachstate);
-
-int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    attr->schedpolicy = policy;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_setschedpolicy);
-
-int pthread_attr_getschedpolicy(pthread_attr_t const *attr, int *policy)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    *policy = (int)attr->schedpolicy;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_getschedpolicy);
-
-int pthread_attr_setschedparam(pthread_attr_t           *attr,
-                               struct sched_param const *param)
-{
-    RT_ASSERT(attr != RT_NULL);
-    RT_ASSERT(param != RT_NULL);
-
-    attr->schedparam.sched_priority = param->sched_priority;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_setschedparam);
-
-int pthread_attr_getschedparam(pthread_attr_t const *attr,
-                               struct sched_param   *param)
-{
-    RT_ASSERT(attr != RT_NULL);
-    RT_ASSERT(param != RT_NULL);
-
-    param->sched_priority = attr->schedparam.sched_priority;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_getschedparam);
-
-int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stack_size)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    attr->stacksize = stack_size;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_setstacksize);
-
-int pthread_attr_getstacksize(pthread_attr_t const *attr, size_t *stack_size)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    *stack_size = attr->stacksize;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_getstacksize);
-
-int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stack_addr)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    return EOPNOTSUPP;
-}
-RTM_EXPORT(pthread_attr_setstackaddr);
-
-int pthread_attr_getstackaddr(pthread_attr_t const *attr, void **stack_addr)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    return EOPNOTSUPP;
-}
-RTM_EXPORT(pthread_attr_getstackaddr);
-
-int pthread_attr_setstack(pthread_attr_t *attr,
-                          void           *stack_base,
-                          size_t          stack_size)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    attr->stackaddr = stack_base;
-    attr->stacksize = RT_ALIGN_DOWN(stack_size, RT_ALIGN_SIZE);
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_setstack);
-
-int pthread_attr_getstack(pthread_attr_t const *attr,
-                          void                **stack_base,
-                          size_t               *stack_size)
-{
-    RT_ASSERT(attr != RT_NULL);
-
-    *stack_base = attr->stackaddr;
-    *stack_size = attr->stacksize;
-
-    return 0;
-}
-RTM_EXPORT(pthread_attr_getstack);
-
-int pthread_attr_setguardsize(pthread_attr_t *attr, size_t guard_size)
-{
-    return EOPNOTSUPP;
-}
-
-int pthread_attr_getguardsize(pthread_attr_t const *attr, size_t *guard_size)
-{
-    return EOPNOTSUPP;
-}
-RTM_EXPORT(pthread_attr_getguardsize);
-
-int pthread_attr_setscope(pthread_attr_t *attr, int scope)
-{
-    if (scope == PTHREAD_SCOPE_SYSTEM)
-        return 0;
-    if (scope == PTHREAD_SCOPE_PROCESS)
-        return EOPNOTSUPP;
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_attr_setscope);
-
-int pthread_attr_getscope(pthread_attr_t const *attr)
-{
-    return PTHREAD_SCOPE_SYSTEM;
-}
-RTM_EXPORT(pthread_attr_getscope);
diff --git a/components/libc/pthreads/pthread_barrier.c b/components/libc/pthreads/pthread_barrier.c
deleted file mode 100644
index 1a5b7fa3f9..0000000000
--- a/components/libc/pthreads/pthread_barrier.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <pthread.h>
-
-int pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
-{
-    if (!attr)
-        return EINVAL;
-
-    return 0;
-}
-RTM_EXPORT(pthread_barrierattr_destroy);
-
-int pthread_barrierattr_init(pthread_barrierattr_t *attr)
-{
-    if (!attr)
-        return EINVAL;
-    *attr = PTHREAD_PROCESS_PRIVATE;
-
-    return 0;
-}
-RTM_EXPORT(pthread_barrierattr_init);
-
-int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr,
-                                   int                         *pshared)
-{
-    if (!attr)
-        return EINVAL;
-    *pshared = (int)*attr;
-
-    return 0;
-}
-RTM_EXPORT(pthread_barrierattr_getpshared);
-
-int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
-{
-    if (!attr)
-        return EINVAL;
-    if (pshared == PTHREAD_PROCESS_PRIVATE)
-        attr = PTHREAD_PROCESS_PRIVATE;
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_barrierattr_setpshared);
-
-int pthread_barrier_destroy(pthread_barrier_t *barrier)
-{
-    rt_err_t result;
-
-    if (!barrier)
-        return EINVAL;
-
-    result = pthread_cond_destroy(&(barrier->cond));
-
-    return result;
-}
-RTM_EXPORT(pthread_barrier_destroy);
-
-int pthread_barrier_init(pthread_barrier_t           *barrier,
-                         const pthread_barrierattr_t *attr,
-                         unsigned                     count)
-{
-    if (!barrier)
-        return EINVAL;
-    if (attr && (*attr != PTHREAD_PROCESS_PRIVATE))
-        return EINVAL;
-
-    barrier->count = count;
-    pthread_cond_init(&(barrier->cond), NULL);
-    pthread_mutex_init(&(barrier->mutex), NULL);
-
-    return 0;
-}
-RTM_EXPORT(pthread_barrier_init);
-
-int pthread_barrier_wait(pthread_barrier_t *barrier)
-{
-    rt_err_t result;
-    if (!barrier)
-        return EINVAL;
-
-    result = pthread_mutex_lock(&(barrier->mutex));
-    if (result != 0)
-        return EINVAL;
-
-    if (barrier->count == 0)
-        result = EINVAL;
-    else
-    {
-        barrier->count -= 1;
-        if (barrier->count == 0) /* broadcast condition */
-            pthread_cond_broadcast(&(barrier->cond));
-        else
-            pthread_cond_wait(&(barrier->cond), &(barrier->mutex));
-    }
-
-    pthread_mutex_unlock(&(barrier->mutex));
-
-    return result;
-}
-RTM_EXPORT(pthread_barrier_wait);
-
diff --git a/components/libc/pthreads/pthread_cond.c b/components/libc/pthreads/pthread_cond.c
deleted file mode 100644
index 9bf49704ed..0000000000
--- a/components/libc/pthreads/pthread_cond.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <pthread.h>
-#include "pthread_internal.h"
-
-int pthread_condattr_destroy(pthread_condattr_t *attr)
-{
-    if (!attr)
-        return EINVAL;
-
-    return 0;
-}
-RTM_EXPORT(pthread_condattr_destroy);
-
-int pthread_condattr_init(pthread_condattr_t *attr)
-{
-    if (!attr)
-        return EINVAL;
-    *attr = PTHREAD_PROCESS_PRIVATE;
-
-    return 0;
-}
-RTM_EXPORT(pthread_condattr_init);
-
-int pthread_condattr_getclock(const pthread_condattr_t *attr,
-                              clockid_t                *clock_id)
-{
-    return 0;
-}
-RTM_EXPORT(pthread_condattr_getclock);
-
-int pthread_condattr_setclock(pthread_condattr_t *attr,
-                              clockid_t           clock_id)
-{
-    return 0;
-}
-RTM_EXPORT(pthread_condattr_setclock);
-
-int pthread_condattr_getpshared(const pthread_condattr_t *attr, int *pshared)
-{
-    if (!attr || !pshared)
-        return EINVAL;
-
-    *pshared = PTHREAD_PROCESS_PRIVATE;
-
-    return 0;
-}
-RTM_EXPORT(pthread_condattr_getpshared);
-
-int pthread_condattr_setpshared(pthread_condattr_t*attr, int pshared)
-{
-    if ((pshared != PTHREAD_PROCESS_PRIVATE) &&
-        (pshared != PTHREAD_PROCESS_SHARED))
-    {
-        return EINVAL;
-    }
-
-    if (pshared != PTHREAD_PROCESS_PRIVATE)
-        return ENOSYS;
-
-    return 0;
-}
-RTM_EXPORT(pthread_condattr_setpshared);
-
-int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
-{
-    rt_err_t result;
-    char cond_name[RT_NAME_MAX];
-    static rt_uint16_t cond_num = 0;
-
-    /* parameter check */
-    if (cond == RT_NULL)
-        return EINVAL;
-    if ((attr != RT_NULL) && (*attr != PTHREAD_PROCESS_PRIVATE))
-        return EINVAL;
-
-    rt_snprintf(cond_name, sizeof(cond_name), "cond%02d", cond_num++);
-
-    if (attr == RT_NULL) /* use default value */
-        cond->attr = PTHREAD_PROCESS_PRIVATE;
-    else
-        cond->attr = *attr;
-
-    result = rt_sem_init(&cond->sem, cond_name, 0, RT_IPC_FLAG_FIFO);
-    if (result != RT_EOK)
-        return EINVAL;
-
-    /* detach the object from system object container */
-    rt_object_detach(&(cond->sem.parent.parent));
-    cond->sem.parent.parent.type = RT_Object_Class_Semaphore;
-
-    return 0;
-}
-RTM_EXPORT(pthread_cond_init);
-
-int pthread_cond_destroy(pthread_cond_t *cond)
-{
-    rt_err_t result;
-    if (cond == RT_NULL)
-        return EINVAL;
-    if (cond->attr == -1)
-        return 0; /* which is not initialized */
-
-    result = rt_sem_trytake(&(cond->sem));
-    if (result != RT_EOK)
-        return EBUSY;
-
-    /* clean condition */
-    rt_memset(cond, 0, sizeof(pthread_cond_t));
-    cond->attr = -1;
-
-    return 0;
-}
-RTM_EXPORT(pthread_cond_destroy);
-
-int pthread_cond_broadcast(pthread_cond_t *cond)
-{
-    rt_err_t result;
-
-    if (cond == RT_NULL)
-        return EINVAL;
-    if (cond->attr == -1)
-        pthread_cond_init(cond, RT_NULL);
-
-    rt_enter_critical();
-    while (1)
-    {
-        /* try to take condition semaphore */
-        result = rt_sem_trytake(&(cond->sem));
-        if (result == -RT_ETIMEOUT)
-        {
-            /* it's timeout, release this semaphore */
-            rt_sem_release(&(cond->sem));
-        }
-        else if (result == RT_EOK)
-        {
-            /* has taken this semaphore, release it */
-            rt_sem_release(&(cond->sem));
-            break;
-        }
-        else
-        {
-            rt_exit_critical();
-
-            return EINVAL;
-        }
-    }
-    rt_exit_critical();
-
-    return 0;
-}
-RTM_EXPORT(pthread_cond_broadcast);
-
-int pthread_cond_signal(pthread_cond_t *cond)
-{
-    rt_err_t result;
-
-    if (cond == RT_NULL)
-        return EINVAL;
-    if (cond->attr == -1)
-        pthread_cond_init(cond, RT_NULL);
-
-    result = rt_sem_release(&(cond->sem));
-    if (result == RT_EOK)
-        return 0;
-
-    return 0;
-}
-RTM_EXPORT(pthread_cond_signal);
-
-rt_err_t _pthread_cond_timedwait(pthread_cond_t  *cond,
-                                 pthread_mutex_t *mutex,
-                                 rt_int32_t       timeout)
-{
-    rt_err_t result;
-
-    if (!cond || !mutex)
-        return -RT_ERROR;
-    /* check whether initialized */
-    if (cond->attr == -1)
-        pthread_cond_init(cond, RT_NULL);
-
-    /* The mutex was not owned by the current thread at the time of the call. */
-    if (mutex->lock.owner != rt_thread_self())
-        return -RT_ERROR;
-    /* unlock a mutex failed */
-    if (pthread_mutex_unlock(mutex) != 0)
-        return -RT_ERROR;
-
-    result = rt_sem_take(&(cond->sem), timeout);
-    /* lock mutex again */
-    pthread_mutex_lock(mutex);
-
-    return result;
-}
-RTM_EXPORT(_pthread_cond_timedwait);
-
-int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-    rt_err_t result;
-
-    result = _pthread_cond_timedwait(cond, mutex, RT_WAITING_FOREVER);
-    if (result == RT_EOK)
-        return 0;
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_cond_wait);
-
-int pthread_cond_timedwait(pthread_cond_t        *cond,
-                           pthread_mutex_t       *mutex,
-                           const struct timespec *abstime)
-{
-    int timeout;
-    rt_err_t result;
-
-    timeout = rt_timespec_to_tick(abstime);
-    result = _pthread_cond_timedwait(cond, mutex, timeout);
-    if (result == RT_EOK)
-        return 0;
-    if (result == -RT_ETIMEOUT)
-        return ETIMEDOUT;
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_cond_timedwait);
-
diff --git a/components/libc/pthreads/pthread_internal.h b/components/libc/pthreads/pthread_internal.h
deleted file mode 100644
index 1fce29f636..0000000000
--- a/components/libc/pthreads/pthread_internal.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#ifndef __PTHREAD_INTERNAL_H__
-#define __PTHREAD_INTERNAL_H__
-
-#include <rtthread.h>
-#include <pthread.h>
-#include <sys/time.h>
-
-struct _pthread_cleanup
-{
-    void (*cleanup_func)(void *parameter);
-    void *parameter;
-
-    struct _pthread_cleanup *next;
-};
-typedef struct _pthread_cleanup _pthread_cleanup_t;
-
-struct _pthread_key_data
-{
-    int is_used;
-    void (*destructor)(void *parameter);
-};
-typedef struct _pthread_key_data _pthread_key_data_t;
-
-#ifndef PTHREAD_NUM_MAX
-#define PTHREAD_NUM_MAX 32
-#endif
-
-#define PTHREAD_MAGIC   0x70746873
-struct _pthread_data
-{
-    rt_uint32_t magic;
-    pthread_attr_t attr;
-    rt_thread_t tid;
-
-    void* (*thread_entry)(void *parameter);
-    void *thread_parameter;
-
-    /* return value */
-    void *return_value;
-
-    /* semaphore for joinable thread */
-    rt_sem_t joinable_sem;
-
-    /* cancel state and type */
-    rt_uint8_t cancelstate;
-    volatile rt_uint8_t canceltype;
-    volatile rt_uint8_t canceled;
-
-    _pthread_cleanup_t *cleanup;
-    void** tls; /* thread-local storage area */
-};
-typedef struct _pthread_data _pthread_data_t;
-
-_pthread_data_t *_pthread_get_data(pthread_t thread);
-
-void posix_mq_system_init(void);
-void posix_sem_system_init(void);
-void pthread_key_system_init(void);
-
-#endif
diff --git a/components/libc/pthreads/pthread_mutex.c b/components/libc/pthreads/pthread_mutex.c
deleted file mode 100644
index a681380b11..0000000000
--- a/components/libc/pthreads/pthread_mutex.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <rtthread.h>
-#include "pthread.h"
-
-#define  MUTEXATTR_SHARED_MASK 0x0010
-#define  MUTEXATTR_TYPE_MASK   0x000f
-
-const pthread_mutexattr_t pthread_default_mutexattr = PTHREAD_PROCESS_PRIVATE;
-
-int pthread_mutexattr_init(pthread_mutexattr_t *attr)
-{
-    if (attr)
-    {
-        *attr = pthread_default_mutexattr;
-
-        return 0;
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutexattr_init);
-
-int pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
-{
-    if (attr)
-    {
-        *attr = -1;
-
-        return 0;
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutexattr_destroy);
-
-int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type)
-{
-    if (attr && type)
-    {
-        int  atype = (*attr & MUTEXATTR_TYPE_MASK);
-
-        if (atype >= PTHREAD_MUTEX_NORMAL && atype <= PTHREAD_MUTEX_ERRORCHECK)
-        {
-            *type = atype;
-
-            return 0;
-        }
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutexattr_gettype);
-
-int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
-{
-    if (attr && type >= PTHREAD_MUTEX_NORMAL && type <= PTHREAD_MUTEX_ERRORCHECK)
-    {
-        *attr = (*attr & ~MUTEXATTR_TYPE_MASK) | type;
-
-        return 0;
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutexattr_settype);
-
-int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared)
-{
-    if (!attr)
-        return EINVAL;
-
-    switch (pshared)
-    {
-    case PTHREAD_PROCESS_PRIVATE:
-        *attr &= ~MUTEXATTR_SHARED_MASK;
-        return 0;
-
-    case PTHREAD_PROCESS_SHARED:
-        *attr |= MUTEXATTR_SHARED_MASK;
-        return 0;
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutexattr_setpshared);
-
-int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared)
-{
-    if (!attr || !pshared)
-        return EINVAL;
-
-    *pshared = (*attr & MUTEXATTR_SHARED_MASK) ? PTHREAD_PROCESS_SHARED
-                                               : PTHREAD_PROCESS_PRIVATE;
-    return 0;
-}
-RTM_EXPORT(pthread_mutexattr_getpshared);
-
-int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
-{
-    rt_err_t result;
-    char name[RT_NAME_MAX];
-    static rt_uint16_t pthread_mutex_number = 0;
-
-    if (!mutex)
-        return EINVAL;
-
-    /* build mutex name */
-    rt_snprintf(name, sizeof(name), "pmtx%02d", pthread_mutex_number ++);
-    if (attr == RT_NULL)
-        mutex->attr = pthread_default_mutexattr;
-    else
-        mutex->attr = *attr;
-
-    /* init mutex lock */
-    result = rt_mutex_init(&(mutex->lock), name, RT_IPC_FLAG_FIFO);
-    if (result != RT_EOK)
-        return EINVAL;
-
-    /* detach the object from system object container */
-    rt_object_detach(&(mutex->lock.parent.parent));
-    mutex->lock.parent.parent.type = RT_Object_Class_Mutex;
-
-    return 0;
-}
-RTM_EXPORT(pthread_mutex_init);
-
-int pthread_mutex_destroy(pthread_mutex_t *mutex)
-{
-    if (!mutex || mutex->attr == -1)
-        return EINVAL;
-
-    /* it's busy */
-    if (mutex->lock.owner != RT_NULL)
-        return EBUSY;
-
-    rt_memset(mutex, 0, sizeof(pthread_mutex_t));
-    mutex->attr = -1;
-
-    return 0;
-}
-RTM_EXPORT(pthread_mutex_destroy);
-
-int pthread_mutex_lock(pthread_mutex_t *mutex)
-{
-    int mtype;
-    rt_err_t result;
-
-    if (!mutex)
-        return EINVAL;
-
-    if (mutex->attr == -1)
-    {
-        /* init mutex */
-        pthread_mutex_init(mutex, RT_NULL);
-    }
-
-    mtype = mutex->attr & MUTEXATTR_TYPE_MASK;
-    rt_enter_critical();
-    if (mutex->lock.owner == rt_thread_self() &&
-        mtype != PTHREAD_MUTEX_RECURSIVE)
-    {
-        rt_exit_critical();
-
-        return EDEADLK;
-    }
-    rt_exit_critical();
-
-    result = rt_mutex_take(&(mutex->lock), RT_WAITING_FOREVER);
-    if (result == RT_EOK)
-        return 0;
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutex_lock);
-
-int pthread_mutex_unlock(pthread_mutex_t *mutex)
-{
-    rt_err_t result;
-
-    if (!mutex)
-        return EINVAL;
-    if (mutex->attr == -1)
-    {
-        /* init mutex */
-        pthread_mutex_init(mutex, RT_NULL);
-    }
-
-    if (mutex->lock.owner != rt_thread_self())
-    {
-        int mtype;
-        mtype = mutex->attr & MUTEXATTR_TYPE_MASK;
-
-        /* error check, return EPERM */
-        if (mtype == PTHREAD_MUTEX_ERRORCHECK)
-            return EPERM;
-
-        /* no thread waiting on this mutex */
-        if (mutex->lock.owner == RT_NULL)
-            return 0;
-    }
-
-    result = rt_mutex_release(&(mutex->lock));
-    if (result == RT_EOK)
-        return 0;
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_mutex_unlock);
-
-int pthread_mutex_trylock(pthread_mutex_t *mutex)
-{
-    rt_err_t result;
-    int mtype;
-
-    if (!mutex)
-        return EINVAL;
-    if (mutex->attr == -1)
-    {
-        /* init mutex */
-        pthread_mutex_init(mutex, RT_NULL);
-    }
-
-    mtype = mutex->attr & MUTEXATTR_TYPE_MASK;
-    rt_enter_critical();
-    if (mutex->lock.owner == rt_thread_self() &&
-        mtype != PTHREAD_MUTEX_RECURSIVE)
-    {
-        rt_exit_critical();
-
-        return EDEADLK;
-    }
-    rt_exit_critical();
-
-    result = rt_mutex_take(&(mutex->lock), 0);
-    if (result == RT_EOK) return 0;
-
-    return EBUSY;
-}
-RTM_EXPORT(pthread_mutex_trylock);
diff --git a/components/libc/pthreads/pthread_rwlock.c b/components/libc/pthreads/pthread_rwlock.c
deleted file mode 100644
index 1c2fe19f5f..0000000000
--- a/components/libc/pthreads/pthread_rwlock.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <pthread.h>
-
-int pthread_rwlockattr_init(pthread_rwlockattr_t *attr)
-{
-    if (!attr)
-        return EINVAL;
-    *attr = PTHREAD_PROCESS_PRIVATE;
-
-    return 0;
-}
-RTM_EXPORT(pthread_rwlockattr_init);
-
-int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr)
-{
-    if (!attr)
-        return EINVAL;
-
-    return 0;
-}
-RTM_EXPORT(pthread_rwlockattr_destroy);
-
-int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *attr,
-                                  int                        *pshared)
-{
-    if (!attr || !pshared)
-        return EINVAL;
-
-    *pshared = PTHREAD_PROCESS_PRIVATE;
-
-    return 0;
-}
-RTM_EXPORT(pthread_rwlockattr_getpshared);
-
-int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int pshared)
-{
-    if (!attr || pshared != PTHREAD_PROCESS_PRIVATE)
-        return EINVAL;
-
-    return 0;
-}
-RTM_EXPORT(pthread_rwlockattr_setpshared);
-
-int pthread_rwlock_init(pthread_rwlock_t           *rwlock,
-                        const pthread_rwlockattr_t *attr)
-{
-    if (!rwlock)
-        return EINVAL;
-
-    rwlock->attr = PTHREAD_PROCESS_PRIVATE;
-    pthread_mutex_init(&(rwlock->rw_mutex), NULL);
-    pthread_cond_init(&(rwlock->rw_condreaders), NULL);
-    pthread_cond_init(&(rwlock->rw_condwriters), NULL);
-
-    rwlock->rw_nwaitwriters = 0;
-    rwlock->rw_nwaitreaders = 0;
-    rwlock->rw_refcount = 0;
-
-    return 0;
-}
-RTM_EXPORT(pthread_rwlock_init);
-
-int pthread_rwlock_destroy (pthread_rwlock_t *rwlock)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        return 0; /* rwlock is not initialized */
-
-    if ( (result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    if (rwlock->rw_refcount != 0 ||
-        rwlock->rw_nwaitreaders != 0 ||
-        rwlock->rw_nwaitwriters != 0)
-    {
-        result = EBUSY;
-
-        return result;
-    }
-    else
-    {
-        /* check whether busy */
-        result = rt_sem_trytake(&(rwlock->rw_condreaders.sem));
-        if (result == RT_EOK)
-        {
-            result = rt_sem_trytake(&(rwlock->rw_condwriters.sem));
-            if (result == RT_EOK)
-            {
-                rt_sem_release(&(rwlock->rw_condreaders.sem));
-                rt_sem_release(&(rwlock->rw_condwriters.sem));
-
-                pthread_cond_destroy(&rwlock->rw_condreaders);
-                pthread_cond_destroy(&rwlock->rw_condwriters);
-            }
-            else
-            {
-                rt_sem_release(&(rwlock->rw_condreaders.sem));
-                result = EBUSY;
-            }
-        }
-        else
-            result = EBUSY;
-    }
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-    if (result == 0)
-        pthread_mutex_destroy(&rwlock->rw_mutex);
-
-    return result;
-}
-RTM_EXPORT(pthread_rwlock_destroy);
-
-int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ((result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    /* give preference to waiting writers */
-    while (rwlock->rw_refcount < 0 || rwlock->rw_nwaitwriters > 0)
-    {
-        rwlock->rw_nwaitreaders++;
-        /* rw_mutex will be released when waiting for rw_condreaders */
-        result = pthread_cond_wait(&rwlock->rw_condreaders, &rwlock->rw_mutex);
-        /* rw_mutex should have been taken again when returned from waiting */
-        rwlock->rw_nwaitreaders--;
-        if (result != 0) /* wait error */
-            break;
-    }
-
-    /* another reader has a read lock */
-    if (result == 0)
-        rwlock->rw_refcount++;
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return (result);
-}
-RTM_EXPORT(pthread_rwlock_rdlock);
-
-int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ((result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    if (rwlock->rw_refcount < 0 || rwlock->rw_nwaitwriters > 0)
-        result = EBUSY;                 /* held by a writer or waiting writers */
-    else
-        rwlock->rw_refcount++;          /* increment count of reader locks */
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return(result);
-}
-RTM_EXPORT(pthread_rwlock_tryrdlock);
-
-int pthread_rwlock_timedrdlock(pthread_rwlock_t      *rwlock,
-                               const struct timespec *abstime)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ( (result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    /* give preference to waiting writers */
-    while (rwlock->rw_refcount < 0 || rwlock->rw_nwaitwriters > 0)
-    {
-        rwlock->rw_nwaitreaders++;
-        /* rw_mutex will be released when waiting for rw_condreaders */
-        result = pthread_cond_timedwait(&rwlock->rw_condreaders, &rwlock->rw_mutex, abstime);
-        /* rw_mutex should have been taken again when returned from waiting */
-        rwlock->rw_nwaitreaders--;
-        if (result != 0)
-            break;
-    }
-
-    /* another reader has a read lock */
-    if (result == 0)
-        rwlock->rw_refcount++;
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return (result);
-}
-RTM_EXPORT(pthread_rwlock_timedrdlock);
-
-int pthread_rwlock_timedwrlock(pthread_rwlock_t      *rwlock,
-                               const struct timespec *abstime)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ((result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    while (rwlock->rw_refcount != 0)
-    {
-        rwlock->rw_nwaitwriters++;
-        /* rw_mutex will be released when waiting for rw_condwriters */
-        result = pthread_cond_timedwait(&rwlock->rw_condwriters, &rwlock->rw_mutex, abstime);
-        /* rw_mutex should have been taken again when returned from waiting */
-        rwlock->rw_nwaitwriters--;
-
-        if (result != 0)
-            break;
-    }
-
-    if (result == 0)
-        rwlock->rw_refcount = -1;
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return(result);
-}
-RTM_EXPORT(pthread_rwlock_timedwrlock);
-
-int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ((result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    if (rwlock->rw_refcount != 0)
-        result = EBUSY;                 /* held by either writer or reader(s) */
-    else
-        rwlock->rw_refcount = -1;       /* available, indicate a writer has it */
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return(result);
-}
-RTM_EXPORT(pthread_rwlock_trywrlock);
-
-int pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ( (result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    if (rwlock->rw_refcount > 0)
-        rwlock->rw_refcount--;              /* releasing a reader */
-    else if (rwlock->rw_refcount == -1)
-        rwlock->rw_refcount = 0;            /* releasing a writer */
-
-    /* give preference to waiting writers over waiting readers */
-    if (rwlock->rw_nwaitwriters > 0)
-    {
-        if (rwlock->rw_refcount == 0)
-            result = pthread_cond_signal(&rwlock->rw_condwriters);
-    }
-    else if (rwlock->rw_nwaitreaders > 0)
-    {
-        result = pthread_cond_broadcast(&rwlock->rw_condreaders);
-    }
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return(result);
-}
-RTM_EXPORT(pthread_rwlock_unlock);
-
-int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
-{
-    int result;
-
-    if (!rwlock)
-        return EINVAL;
-    if (rwlock->attr == -1)
-        pthread_rwlock_init(rwlock, NULL);
-
-    if ((result = pthread_mutex_lock(&rwlock->rw_mutex)) != 0)
-        return(result);
-
-    while (rwlock->rw_refcount != 0)
-    {
-        rwlock->rw_nwaitwriters++;
-        /* rw_mutex will be released when waiting for rw_condwriters */
-        result = pthread_cond_wait(&rwlock->rw_condwriters, &rwlock->rw_mutex);
-        /* rw_mutex should have been taken again when returned from waiting */
-        rwlock->rw_nwaitwriters--;
-
-        if (result != 0)
-            break;
-    }
-
-    if (result == 0)
-        rwlock->rw_refcount = -1;
-
-    pthread_mutex_unlock(&rwlock->rw_mutex);
-
-    return(result);
-}
-RTM_EXPORT(pthread_rwlock_wrlock);
-
diff --git a/components/libc/pthreads/pthread_spin.c b/components/libc/pthreads/pthread_spin.c
deleted file mode 100644
index 3f3dc1593c..0000000000
--- a/components/libc/pthreads/pthread_spin.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <pthread.h>
-
-int pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
-    if (!lock)
-        return EINVAL;
-
-    lock->lock = 0;
-
-    return 0;
-}
-
-int pthread_spin_destroy (pthread_spinlock_t *lock)
-{
-    if (!lock)
-        return EINVAL;
-
-    return 0;
-}
-
-int pthread_spin_lock (pthread_spinlock_t *lock)
-{
-    if (!lock)
-        return EINVAL;
-
-    while (!(lock->lock))
-    {
-        lock->lock = 1;
-    }
-
-    return 0;
-}
-
-int pthread_spin_trylock (pthread_spinlock_t *lock)
-{
-    if (!lock)
-        return EINVAL;
-
-    if (!(lock->lock))
-    {
-        lock->lock = 1;
-
-        return 0;
-    }
-
-    return EBUSY;
-}
-
-int pthread_spin_unlock (pthread_spinlock_t *lock)
-{
-    if (!lock)
-        return EINVAL;
-    if (!(lock->lock))
-        return EPERM;
-
-    lock->lock = 0;
-
-    return 0;
-}
diff --git a/components/libc/pthreads/pthread_tls.c b/components/libc/pthreads/pthread_tls.c
deleted file mode 100644
index d48df7f2dd..0000000000
--- a/components/libc/pthreads/pthread_tls.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <pthread.h>
-#include "pthread_internal.h"
-
-_pthread_key_data_t _thread_keys[PTHREAD_KEY_MAX];
-
-void pthread_key_system_init()
-{
-    rt_memset(&_thread_keys[0], 0, sizeof(_thread_keys));
-}
-
-void *pthread_getspecific(pthread_key_t key)
-{
-    struct _pthread_data* ptd;
-
-    if (rt_thread_self() == NULL) return NULL;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != NULL);
-
-    if (ptd->tls == NULL)
-        return NULL;
-
-    if ((key < PTHREAD_KEY_MAX) && (_thread_keys[key].is_used))
-        return ptd->tls[key];
-
-    return NULL;
-}
-RTM_EXPORT(pthread_getspecific);
-
-int pthread_setspecific(pthread_key_t key, const void *value)
-{
-    struct _pthread_data* ptd;
-
-    if (rt_thread_self() == NULL) return EINVAL;
-
-    /* get pthread data from user data of thread */
-    ptd = (_pthread_data_t *)rt_thread_self()->user_data;
-    RT_ASSERT(ptd != NULL);
-
-    /* check tls area */
-    if (ptd->tls == NULL)
-    {
-        ptd->tls = (void**)rt_malloc(sizeof(void*) * PTHREAD_KEY_MAX);
-    }
-
-    if ((key < PTHREAD_KEY_MAX) && _thread_keys[key].is_used)
-    {
-        ptd->tls[key] = (void *)value;
-
-        return 0;
-    }
-
-    return EINVAL;
-}
-RTM_EXPORT(pthread_setspecific);
-
-int pthread_key_create(pthread_key_t *key, void (*destructor)(void*))
-{
-    rt_uint32_t index;
-
-    rt_enter_critical();
-    for (index = 0; index < PTHREAD_KEY_MAX; index ++)
-    {
-        if (_thread_keys[index].is_used == 0)
-        {
-            _thread_keys[index].is_used = 1;
-            _thread_keys[index].destructor = destructor;
-
-            *key = index;
-
-            rt_exit_critical();
-
-            return 0;
-        }
-    }
-
-    rt_exit_critical();
-
-    return EAGAIN;
-}
-RTM_EXPORT(pthread_key_create);
-
-int pthread_key_delete(pthread_key_t key)
-{
-    if (key >= PTHREAD_KEY_MAX)
-        return EINVAL;
-
-    rt_enter_critical();
-    _thread_keys[key].is_used = 0;
-    _thread_keys[key].destructor = 0;
-    rt_exit_critical();
-
-    return 0;
-}
-RTM_EXPORT(pthread_key_delete);
-
diff --git a/components/libc/pthreads/sched.c b/components/libc/pthreads/sched.c
deleted file mode 100644
index 5f2a53c01f..0000000000
--- a/components/libc/pthreads/sched.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-
-#include <sched.h>
-
-int sched_yield(void)
-{
-    rt_thread_yield();
-
-    return 0;
-}
-RTM_EXPORT(sched_yield);
-
-int sched_get_priority_min(int policy)
-{
-    if (policy != SCHED_FIFO && policy != SCHED_RR)
-        return EINVAL;
-
-    return 0;
-}
-RTM_EXPORT(sched_get_priority_min);
-
-int sched_get_priority_max(int policy)
-{
-    if (policy != SCHED_FIFO && policy != SCHED_RR)
-        return EINVAL;
-
-    return RT_THREAD_PRIORITY_MAX - 1;
-}
-RTM_EXPORT(sched_get_priority_max);
-
-int sched_setscheduler(pid_t pid, int policy)
-{
-    return EOPNOTSUPP;
-}
-RTM_EXPORT(sched_setscheduler);
diff --git a/components/libc/pthreads/sched.h b/components/libc/pthreads/sched.h
deleted file mode 100644
index 07e2c0c6a8..0000000000
--- a/components/libc/pthreads/sched.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-
-#ifndef __SCHED_H__
-#define __SCHED_H__
-
-#include <rtthread.h>
-#include <pthread.h>
-
-/* Thread scheduling policies */
-enum
-{
-    SCHED_OTHER = 0,
-    SCHED_FIFO,
-    SCHED_RR,
-    SCHED_MIN = SCHED_OTHER,
-    SCHED_MAX = SCHED_RR
-};
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-int sched_yield(void);
-int sched_get_priority_min(int policy);
-int sched_get_priority_max(int policy);
-int sched_setscheduler(pid_t pid, int policy);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/components/libc/pthreads/semaphore.c b/components/libc/pthreads/semaphore.c
deleted file mode 100644
index 5e59ae850f..0000000000
--- a/components/libc/pthreads/semaphore.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#include <rtthread.h>
-#include <string.h>
-#include "semaphore.h"
-#include "pthread_internal.h"
-
-static sem_t *posix_sem_list = RT_NULL;
-static struct rt_semaphore posix_sem_lock;
-void posix_sem_system_init()
-{
-    rt_sem_init(&posix_sem_lock, "psem", 1, RT_IPC_FLAG_FIFO);
-}
-
-rt_inline void posix_sem_insert(sem_t *psem)
-{
-    psem->next = posix_sem_list;
-    posix_sem_list = psem;
-}
-
-static void posix_sem_delete(sem_t *psem)
-{
-    sem_t *iter;
-    if (posix_sem_list == psem)
-    {
-        posix_sem_list = psem->next;
-
-        rt_sem_delete(psem->sem);
-        rt_free(psem);
-
-        return;
-    }
-    for (iter = posix_sem_list; iter->next != RT_NULL; iter = iter->next)
-    {
-        if (iter->next == psem)
-        {
-            /* delete this mq */
-            if (psem->next != RT_NULL)
-                iter->next = psem->next;
-            else
-                iter->next = RT_NULL;
-
-            /* delete RT-Thread mqueue */
-            rt_sem_delete(psem->sem);
-            rt_free(psem);
-
-            return ;
-        }
-    }
-}
-
-static sem_t *posix_sem_find(const char* name)
-{
-    sem_t *iter;
-    rt_object_t object;
-
-    for (iter = posix_sem_list; iter != RT_NULL; iter = iter->next)
-    {
-        object = (rt_object_t)iter->sem;
-
-        if (strncmp(object->name, name, RT_NAME_MAX) == 0)
-        {
-            return iter;
-        }
-    }
-
-    return RT_NULL;
-}
-
-int sem_close(sem_t *sem)
-{
-    if (sem == RT_NULL)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    /* lock posix semaphore list */
-    rt_sem_take(&posix_sem_lock, RT_WAITING_FOREVER);
-    sem->refcount --;
-    if (sem->refcount == 0)
-    {
-        /* delete from posix semaphore list */
-        if (sem->unlinked)
-            posix_sem_delete(sem);
-        sem = RT_NULL;
-    }
-    rt_sem_release(&posix_sem_lock);
-
-    return 0;
-}
-RTM_EXPORT(sem_close);
-
-int sem_destroy(sem_t *sem)
-{
-    rt_err_t result;
-
-    if ((!sem) || !(sem->unamed))
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    /* lock posix semaphore list */
-    rt_sem_take(&posix_sem_lock, RT_WAITING_FOREVER);
-    result = rt_sem_trytake(sem->sem);
-    if (result != RT_EOK)
-    {
-        rt_sem_release(&posix_sem_lock);
-        rt_set_errno(EBUSY);
-
-        return -1;
-    }
-
-    /* destroy an unamed posix semaphore */
-    posix_sem_delete(sem);
-    rt_sem_release(&posix_sem_lock);
-
-    return 0;
-}
-RTM_EXPORT(sem_destroy);
-
-int sem_unlink(const char *name)
-{
-    sem_t *psem;
-
-    /* lock posix semaphore list */
-    rt_sem_take(&posix_sem_lock, RT_WAITING_FOREVER);
-    psem = posix_sem_find(name);
-    if (psem != RT_NULL)
-    {
-        psem->unlinked = 1;
-        if (psem->refcount == 0)
-        {
-            /* remove this semaphore */
-            posix_sem_delete(psem);
-        }
-        rt_sem_release(&posix_sem_lock);
-
-        return 0;
-    }
-    rt_sem_release(&posix_sem_lock);
-
-    /* no this entry */
-    rt_set_errno(ENOENT);
-
-    return -1;
-}
-RTM_EXPORT(sem_unlink);
-
-int sem_getvalue(sem_t *sem, int *sval)
-{
-    if (!sem || !sval)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-    *sval = sem->sem->value;
-
-    return 0;
-}
-RTM_EXPORT(sem_getvalue);
-
-int sem_init(sem_t *sem, int pshared, unsigned int value)
-{
-    char name[RT_NAME_MAX];
-    static rt_uint16_t psem_number = 0;
-
-    if (sem == RT_NULL)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    rt_snprintf(name, sizeof(name), "psem%02d", psem_number++);
-    sem->sem = rt_sem_create(name, value, RT_IPC_FLAG_FIFO);
-    if (sem->sem == RT_NULL)
-    {
-        rt_set_errno(ENOMEM);
-
-        return -1;
-    }
-
-    /* initialize posix semaphore */
-    sem->refcount = 1;
-    sem->unlinked = 0;
-    sem->unamed = 1;
-    /* lock posix semaphore list */
-    rt_sem_take(&posix_sem_lock, RT_WAITING_FOREVER);
-    posix_sem_insert(sem);
-    rt_sem_release(&posix_sem_lock);
-
-    return 0;
-}
-RTM_EXPORT(sem_init);
-
-sem_t *sem_open(const char *name, int oflag, ...)
-{
-    sem_t* sem;
-    va_list arg;
-    mode_t mode;
-    unsigned int value;
-
-    sem = RT_NULL;
-
-    /* lock posix semaphore list */
-    rt_sem_take(&posix_sem_lock, RT_WAITING_FOREVER);
-    if (oflag & O_CREAT)
-    {
-        va_start(arg, oflag);
-        mode = (mode_t) va_arg( arg, unsigned int); mode = mode;
-        value = va_arg( arg, unsigned int);
-        va_end(arg);
-
-        if (oflag & O_EXCL)
-        {
-            if (posix_sem_find(name) != RT_NULL)
-            {
-                rt_set_errno(EEXIST);
-                goto __return;
-            }
-        }
-        sem = (sem_t*) rt_malloc (sizeof(struct posix_sem));
-        if (sem == RT_NULL)
-        {
-            rt_set_errno(ENFILE);
-            goto __return;
-        }
-
-        /* create RT-Thread semaphore */
-        sem->sem = rt_sem_create(name, value, RT_IPC_FLAG_FIFO);
-        if (sem->sem == RT_NULL) /* create failed */
-        {
-            rt_set_errno(ENFILE);
-            goto __return;
-        }
-        /* initialize reference count */
-        sem->refcount = 1;
-        sem->unlinked = 0;
-        sem->unamed = 0;
-
-        /* insert semaphore to posix semaphore list */
-        posix_sem_insert(sem);
-    }
-    else
-    {
-        /* find semaphore */
-        sem = posix_sem_find(name);
-        if (sem != RT_NULL)
-        {
-            sem->refcount ++; /* increase reference count */
-        }
-        else
-        {
-            rt_set_errno(ENOENT);
-            goto __return;
-        }
-    }
-    rt_sem_release(&posix_sem_lock);
-
-    return sem;
-
-__return:
-    /* release lock */
-    rt_sem_release(&posix_sem_lock);
-
-    /* release allocated memory */
-    if (sem != RT_NULL)
-    {
-        /* delete RT-Thread semaphore */
-        if (sem->sem != RT_NULL)
-            rt_sem_delete(sem->sem);
-        rt_free(sem);
-    }
-
-    return RT_NULL;
-}
-RTM_EXPORT(sem_open);
-
-int sem_post(sem_t *sem)
-{
-    rt_err_t result;
-
-    if (!sem)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    result = rt_sem_release(sem->sem);
-    if (result == RT_EOK)
-        return 0;
-
-    rt_set_errno(EINVAL);
-
-    return -1;
-}
-RTM_EXPORT(sem_post);
-
-int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
-{
-    rt_err_t result;
-    rt_int32_t tick;
-
-    if (!sem || !abs_timeout)
-        return EINVAL;
-
-    /* calculate os tick */
-    tick = rt_timespec_to_tick(abs_timeout);
-
-    result = rt_sem_take(sem->sem, tick);
-    if (result == -RT_ETIMEOUT)
-    {
-        rt_set_errno(ETIMEDOUT);
-
-        return -1;
-    }
-    if (result == RT_EOK)
-        return 0;
-
-    rt_set_errno(EINTR);
-
-    return -1;
-}
-RTM_EXPORT(sem_timedwait);
-
-int sem_trywait(sem_t *sem)
-{
-    rt_err_t result;
-
-    if (!sem)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    result = rt_sem_take(sem->sem, 0);
-    if (result == -RT_ETIMEOUT)
-    {
-        rt_set_errno(EAGAIN);
-
-        return -1;
-    }
-    if (result == RT_EOK)
-        return 0;
-
-    rt_set_errno(EINTR);
-
-    return -1;
-}
-RTM_EXPORT(sem_trywait);
-
-int sem_wait(sem_t *sem)
-{
-    rt_err_t result;
-
-    if (!sem)
-    {
-        rt_set_errno(EINVAL);
-
-        return -1;
-    }
-
-    result = rt_sem_take(sem->sem, RT_WAITING_FOREVER);
-    if (result == RT_EOK)
-        return 0;
-
-    rt_set_errno(EINTR);
-
-    return -1;
-}
-RTM_EXPORT(sem_wait);
-
diff --git a/components/libc/pthreads/semaphore.h b/components/libc/pthreads/semaphore.h
deleted file mode 100644
index 872226e385..0000000000
--- a/components/libc/pthreads/semaphore.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2010-10-26     Bernard      the first version
- */
-
-#ifndef __POSIX_SEMAPHORE_H__
-#define __POSIX_SEMAPHORE_H__
-
-#include <rtthread.h>
-#include <pthread.h>
-
-struct posix_sem
-{
-    /* reference count and unlinked */
-    rt_uint16_t refcount;
-    rt_uint8_t unlinked;
-    rt_uint8_t unamed;
-
-    /* RT-Thread semaphore */
-    rt_sem_t sem;
-
-    /* next posix semaphore */
-    struct posix_sem* next;
-};
-typedef struct posix_sem sem_t;
-
-int sem_close(sem_t *sem);
-int sem_destroy(sem_t *sem);
-int sem_getvalue(sem_t *sem, int *sval);
-int sem_init(sem_t *sem, int pshared, unsigned int value);
-sem_t *sem_open(const char *name, int oflag, ...);
-int sem_post(sem_t *sem);
-int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout);
-int sem_trywait(sem_t *sem);
-int sem_unlink(const char *name);
-int sem_wait(sem_t *sem);
-
-#endif