f4a0b7aedd
Drop to user-space in kernel/protected build with up_pthread_exit, now all pthread_cleanup functions executed in user mode. * A new syscall SYS_pthread_exit added * A new tcb flag TCB_FLAG_CANCEL_DOING added * up_pthread_exit implemented for riscv/arm arch Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
92 lines
3.2 KiB
C
92 lines
3.2 KiB
C
/****************************************************************************
|
|
* libs/libc/pthread/pthread_create.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/pthread.h>
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: pthread_startup
|
|
*
|
|
* Description:
|
|
* This function is the user space pthread startup function. Its purpose
|
|
* is to catch the return from the pthread main function so that
|
|
* pthread_exit() can be called from user space
|
|
*
|
|
* Input Parameters:
|
|
* entry - The user-space address of the pthread entry point
|
|
* arg - Standard argument for the pthread entry point
|
|
*
|
|
* Returned Value:
|
|
* None. This function does not return.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void pthread_startup(pthread_startroutine_t entry,
|
|
pthread_addr_t arg)
|
|
{
|
|
DEBUGASSERT(entry != NULL);
|
|
|
|
/* Pass control to the thread entry point. Handle any returned value. */
|
|
|
|
pthread_exit(entry(arg));
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: pthread_create
|
|
*
|
|
* Description:
|
|
* This function creates and activates a new thread with specified
|
|
* attributes. It is simply a wrapper around the nx_pthread_create system
|
|
* call.
|
|
*
|
|
* Input Parameters:
|
|
* thread
|
|
* attr
|
|
* pthread_entry
|
|
* arg
|
|
*
|
|
* Returned Value:
|
|
* OK (0) on success; a (non-negated) errno value on failure. The errno
|
|
* variable is not set.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int pthread_create(FAR pthread_t *thread, FAR const pthread_attr_t *attr,
|
|
pthread_startroutine_t pthread_entry, pthread_addr_t arg)
|
|
{
|
|
return nx_pthread_create(pthread_startup, thread, attr, pthread_entry,
|
|
arg, pthread_exit);
|
|
}
|