nuttx/binfmt/binfmt.h
Xiang Xiao 47e38eb70f binfmt: Decouple builtin from binfs file system
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-02-14 09:35:35 -03:00

159 lines
4.8 KiB
C

/****************************************************************************
* binfmt/binfmt.h
*
* 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.
*
****************************************************************************/
#ifndef __BINFMT_BINFMT_H
#define __BINFMT_BINFMT_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/binfmt/binfmt.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/* This is a list of registered handlers for different binary formats.
* This list should only be accessed by normal user programs. It should be
* sufficient protection to simply disable pre-emption when accessing this
* list.
*/
EXTERN FAR struct binfmt_s *g_binfmts;
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: binfmt_dumpmodule
*
* Description:
* Dump the contents of struct binary_s.
*
* Input Parameters:
* bin - Load structure
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure
*
****************************************************************************/
#if defined(CONFIG_DEBUG_FEATURES) && defined(CONFIG_DEBUG_BINFMT)
int binfmt_dumpmodule(FAR const struct binary_s *bin);
#else
# define binfmt_dumpmodule(bin)
#endif
/****************************************************************************
* Name: binfmt_copyargv
*
* Description:
* In the kernel build, the argv list will likely lie in the caller's
* address environment and, hence, be inaccessible when we switch to the
* address environment of the new process address environment. So we
* do not have any real option other than to copy the callers argv[] list.
*
* Input Parameters:
* argv - Argument list
*
* Returned Value:
* A non-zero copy is returned on success.
*
****************************************************************************/
FAR char * const *binfmt_copyargv(FAR char * const *argv);
/****************************************************************************
* Name: binfmt_freeargv
*
* Description:
* Release the copied argv[] list.
*
* Input Parameters:
* argv - Argument list
*
* Returned Value:
* None
*
****************************************************************************/
#if defined(CONFIG_ARCH_ADDRENV) && defined(CONFIG_BUILD_KERNEL)
void binfmt_freeargv(FAR char * const *argv);
#else
# define binfmt_freeargv(argv)
#endif
/****************************************************************************
* Name: builtin_initialize
*
* Description:
* In order to use the builtin binary format, this function must be called
* during system initialize to register the builtin binary format.
*
* 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.
*
****************************************************************************/
#ifdef CONFIG_BUILTIN
int builtin_initialize(void);
#endif
/****************************************************************************
* Name: builtin_uninitialize
*
* Description:
* Unregister the builtin binary loader
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_BUILTIN
void builtin_uninitialize(void);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __BINFMT_BINFMT_H */