52482219c8
Renaming "modlib" to "libelf" is more in line with the implementation content, which makes it easier for individual developers to understand the capabilities of this module. CONFIG_LIBC_MODLIB -> CONFIG_LIBC_ELF Signed-off-by: chao an <anchao.archer@bytedance.com>
108 lines
3 KiB
C
108 lines
3 KiB
C
/****************************************************************************
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* libs/libc/elf/elf_uninit.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <unistd.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/lib/elf.h>
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#include "libc.h"
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#include "elf/elf.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: libelf_uninitialize
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*
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* Description:
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* Releases any resources committed by libelf_initialize(). This
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* essentially undoes the actions of libelf_initialize.
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*
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* Returned Value:
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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****************************************************************************/
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int libelf_uninitialize(FAR struct mod_loadinfo_s *loadinfo)
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{
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/* Free all working buffers */
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libelf_freebuffers(loadinfo);
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/* Close the ELF file */
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if (loadinfo->filfd >= 0)
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{
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_NX_CLOSE(loadinfo->filfd);
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loadinfo->filfd = -1;
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}
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return OK;
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}
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/****************************************************************************
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* Name: libelf_freebuffers
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*
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* Description:
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* Release all working buffers.
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*
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* Returned Value:
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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****************************************************************************/
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int libelf_freebuffers(FAR struct mod_loadinfo_s *loadinfo)
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{
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/* Release all working allocations */
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if (loadinfo->shdr != NULL)
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{
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lib_free(loadinfo->shdr);
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loadinfo->shdr = NULL;
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}
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if (loadinfo->phdr != NULL)
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{
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lib_free(loadinfo->phdr);
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loadinfo->phdr = NULL;
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}
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if (loadinfo->iobuffer != NULL)
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{
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lib_free(loadinfo->iobuffer);
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loadinfo->iobuffer = NULL;
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loadinfo->buflen = 0;
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}
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return OK;
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}
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