135 lines
5.0 KiB
C
135 lines
5.0 KiB
C
/****************************************************************************
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* binfmt/libnxflat/libnxflat.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __BINFMT_LIBNXFLAT_LIBNXFLAT_H
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#define __BINFMT_LIBNXFLAT_LIBNXFLAT_H
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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 <sys/types.h>
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#include <nuttx/arch.h>
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#include <nuttx/binfmt/nxflat.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Name: nxflat_addrenv_alloc
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*
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* Description:
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* Allocate data memory for the NXFLAT image. If CONFIG_ARCH_ADDRENV=n,
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* memory will be allocated using kzalloc(). If CONFIG_ARCH_ADDRENV-y,
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* then memory will be allocated using up_addrenv_create().
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*
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* Input Parameters:
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* loadinfo - Load state information
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* envsize - The size (in bytes) of the address environment needed for the
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* ELF image.
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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int nxflat_addrenv_alloc(FAR struct nxflat_loadinfo_s *loadinfo, size_t envsize);
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/****************************************************************************
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* Name: nxflat_addrenv_select
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*
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* Description:
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* Temporarity select the task's address environemnt.
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*
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* Input Parameters:
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* loadinfo - Load state information
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_ADDRENV
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# define nxflat_addrenv_select(l) up_addrenv_select(&(l)->addrenv, &(l)->oldenv)
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#endif
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/****************************************************************************
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* Name: nxflat_addrenv_restore
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*
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* Description:
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* Restore the address environment before nxflat_addrenv_select() was called..
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*
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* Input Parameters:
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* loadinfo - Load state information
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_ADDRENV
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# define nxflat_addrenv_restore(l) up_addrenv_restore(&(l)->oldenv)
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#endif
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/****************************************************************************
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* Name: nxflat_addrenv_free
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*
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* Description:
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* Release the address environment previously created by
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* nxflat_addrenv_create(). This function is called only under certain
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* error conditions after the module has been loaded but not yet
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* started. After the module has been started, the address environment
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* will automatically be freed when the module exits.
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*
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* Input Parameters:
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* loadinfo - Load state information
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void nxflat_addrenv_free(FAR struct nxflat_loadinfo_s *loadinfo);
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#endif /* __BINFMT_LIBNXFLAT_LIBNXFLAT_H */
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