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136 lines
5.1 KiB
136 lines
5.1 KiB
/**************************************************************************** |
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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 memory for the ELF image (elfalloc). If CONFIG_ADDRENV=n, |
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* elfalloc will be allocated using kzalloc(). If CONFIG_ADDRENV-y, then |
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* elfalloc will be allocated using up_addrenv_create(). In either case, |
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* there will be a unique instance of elfalloc (and stack) for each |
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* instance of a process. |
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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_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_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 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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