forked from Archive/PX4-Autopilot
137 lines
5.1 KiB
C
137 lines
5.1 KiB
C
/****************************************************************************
|
|
* binfmt/libnxflat/libnxflat.h
|
|
*
|
|
* Copyright (C) 2012 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __BINFMT_LIBNXFLAT_LIBNXFLAT_H
|
|
#define __BINFMT_LIBNXFLAT_LIBNXFLAT_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <nuttx/arch.h>
|
|
#include <nuttx/binfmt/nxflat.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxflat_addrenv_alloc
|
|
*
|
|
* Description:
|
|
* Allocate memory for the ELF image (elfalloc). If CONFIG_ADDRENV=n,
|
|
* elfalloc will be allocated using kzalloc(). If CONFIG_ADDRENV-y, then
|
|
* elfalloc will be allocated using up_addrenv_create(). In either case,
|
|
* there will be a unique instance of elfalloc (and stack) for each
|
|
* instance of a process.
|
|
*
|
|
* Input Parameters:
|
|
* loadinfo - Load state information
|
|
* envsize - The size (in bytes) of the address environment needed for the
|
|
* ELF image.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int nxflat_addrenv_alloc(FAR struct nxflat_loadinfo_s *loadinfo, size_t envsize);
|
|
|
|
/****************************************************************************
|
|
* Name: nxflat_addrenv_select
|
|
*
|
|
* Description:
|
|
* Temporarity select the task's address environemnt.
|
|
*
|
|
* Input Parameters:
|
|
* loadinfo - Load state information
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_ADDRENV
|
|
# define nxflat_addrenv_select(l) up_addrenv_select((l)->addrenv, &(l)->oldenv)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: nxflat_addrenv_restore
|
|
*
|
|
* Description:
|
|
* Restore the address environment before nxflat_addrenv_select() was called..
|
|
*
|
|
* Input Parameters:
|
|
* loadinfo - Load state information
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_ADDRENV
|
|
# define nxflat_addrenv_restore(l) up_addrenv_restore((l)->oldenv)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: nxflat_addrenv_free
|
|
*
|
|
* Description:
|
|
* Release the address environment previously created by
|
|
* nxflat_addrenv_create(). This function is called only under certain
|
|
* error conditions after the the module has been loaded but not yet
|
|
* started. After the module has been started, the address environment
|
|
* will automatically be freed when the module exits.
|
|
*
|
|
* Input Parameters:
|
|
* loadinfo - Load state information
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxflat_addrenv_free(FAR struct nxflat_loadinfo_s *loadinfo);
|
|
|
|
#endif /* __BINFMT_LIBNXFLAT_LIBNXFLAT_H */
|