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loader.h
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loader.h
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/****************************************************************************
* ARMv7M ELF loader
* Copyright (c) 2013-2015 Martin Ribelotta
* All rights reserved.
*
* 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 of copyright holders 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 COPYRIGHT HOLDERS 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 LOADER_H_
#define LOADER_H_
#ifdef __cplusplus__
extern "C" {
#endif
/**
* @defgroup elf_loader ELF Loader
* @{
*/
/**
* Protection flags of memory
*/
typedef enum {
ELF_SEC_WRITE = 0x1, /*!< Enable for write */
ELF_SEC_READ = 0x2, /*!< Enable for read */
ELF_SEC_EXEC = 0x4, /*!< Enable for execution (instruction fetch) */
} ELFSecPerm_t;
/**
* Exported symbol struct
*/
typedef struct {
const char *name; /*!< Name of symbol */
void *ptr; /*!< Pointer of symbol in memory */
} ELFSymbol_t;
/**
* Environment for execution
*/
typedef struct {
const ELFSymbol_t *exported; /*!< Pointer to exported symbols array */
unsigned int exported_size; /*!< Elements on exported symbol array */
} ELFEnv_t;
/**
* Execute ELF file from "path" with environment "env"
* @param path Path to file to load
* @param env Pointer to environment struct
* @retval 0 On successful
* @retval -1 On fail
* @todo Error information
*/
extern int exec_elf(const char *path, const ELFEnv_t *env);
/** @} */
#ifdef __cplusplus__
}
#endif
#endif /* LOADER_H_ */