diff options
Diffstat (limited to 'nuttx/binfmt/binfmt_unloadmodule.c')
-rw-r--r-- | nuttx/binfmt/binfmt_unloadmodule.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/nuttx/binfmt/binfmt_unloadmodule.c b/nuttx/binfmt/binfmt_unloadmodule.c new file mode 100644 index 000000000..c6fa90c39 --- /dev/null +++ b/nuttx/binfmt/binfmt_unloadmodule.c @@ -0,0 +1,108 @@ +/**************************************************************************** + * binfmt/binfmt_loadmodule.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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/mman.h> +#include <stdlib.h> +#include <sched.h> +#include <debug.h> +#include <errno.h> + +#include <nuttx/binfmt.h> + +#include "binfmt_internal.h" + +#ifndef CONFIG_BINFMT_DISABLE + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: unload_module + * + * Description: + * Unload a (non-executing) module from memory. If the module has + * been started (via exec_module), calling this will be fatal. + * + * 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 unload_module(FAR const struct binary_s *bin) +{ + if (bin) + { + if (bin->ispace) + { + bvdbg("Unmapping ISpace: %p\n", bin->ispace); + munmap(bin->ispace, bin->isize); + } + + if (bin->dspace) + { + bvdbg("Freeing DSpace: %p\n", bin->dspace); + free(bin->dspace); + } + } + return OK; +} + +#endif /* CONFIG_BINFMT_DISABLE */ + |