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- /****************************************************************************
- * binfmt/libnxflat/libnxflat_unload.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 <sys/mman.h>
- #include <stdlib.h>
- #include <debug.h>
- #include <nuttx/kmalloc.h>
- #include <nuttx/binfmt/nxflat.h>
- #include "libnxflat.h"
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- /****************************************************************************
- * Private Constant Data
- ****************************************************************************/
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nxflat_unload
- *
- * Description:
- * This function unloads the object from memory. This essentially undoes
- * the actions of nxflat_load. It is called only under certain error
- * conditions after the module has been loaded but not yet started.
- *
- * Returned Value:
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
- int nxflat_unload(FAR struct nxflat_loadinfo_s *loadinfo)
- {
- /* Release the memory segments */
- /* Release the I-Space mmap'ed file */
- if (loadinfo->ispace)
- {
- munmap((FAR void *)loadinfo->ispace, loadinfo->isize);
- loadinfo->ispace = 0;
- }
- /* Release the D-Space address environment */
- nxflat_addrenv_free(loadinfo);
- return OK;
- }
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