incubator-nuttx/binfmt/binfmt_exit.c

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/****************************************************************************
* binfmt/binfmt_exit.c
*
* Copyright (C) 2013, 2016-2018 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/kmalloc.h>
#include <nuttx/binfmt/binfmt.h>
#include "binfmt.h"
#ifdef CONFIG_BINFMT_LOADABLE
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: binfmt_exit
*
* Description:
* This function may be called when a tasked loaded into RAM exits.
* This function will unload the module when the task exits and reclaim
* all resources used by the module.
*
* Input Parameters:
* bin - This structure must have been allocated with kmm_malloc() and must
* persist until the task unloads
*
* Returned Value:
* This is a NuttX internal function so it follows the convention that
* 0 (OK) is returned on success and a negated errno is returned on
* failure.
*
****************************************************************************/
int binfmt_exit(FAR struct binary_s *bin)
{
int ret;
DEBUGASSERT(bin != NULL);
/* Unload the module */
ret = unload_module(bin);
if (ret < 0)
{
berr("ERROR: unload_module() failed: %d\n", ret);
}
/* Free the load structure */
kmm_free(bin);
return ret;
}
#endif /* CONFIG_BINFMT_LOADABLE */