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2963 svoboda 1
/*
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 * Copyright (c) 2008 Jiri Svoboda
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 * All rights reserved.
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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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 * - 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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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup generic
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 * @{
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 */
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/** @file
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 * @brief ELF loader structures and public functions.
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 */
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#ifndef ELF_LOAD_H_
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#define ELF_LOAD_H_
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#include <arch/elf.h>
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#include <sys/types.h>
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#include <loader/pcb.h>
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#include "elf.h"
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typedef enum {
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    /** Leave all segments in RW access mode. */
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    ELDF_RW = 1
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} eld_flags_t;
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/**
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 * Some data extracted from the headers are stored here
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 */
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typedef struct {
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    /** Entry point */
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    entry_point_t entry;
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    /** ELF interpreter name or NULL if statically-linked */
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    char *interp;
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    /** Pointer to the dynamic section */
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    void *dynamic;
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} elf_info_t;
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/**
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 * Holds information about an ELF binary being loaded.
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 */
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typedef struct {
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    /** Filedescriptor of the file from which we are loading */
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    int fd;
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    /** Difference between run-time addresses and link-time addresses */
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    uintptr_t bias;
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    /** Flags passed to the ELF loader. */
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    eld_flags_t flags;
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    /** A copy of the ELF file header */
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    elf_header_t *header;
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    /** Store extracted info here */
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    elf_info_t *info;
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} elf_ld_t;
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int elf_load_file(char *file_name, size_t so_bias, eld_flags_t flags,
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    elf_info_t *info);
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void elf_run(elf_info_t *info, pcb_t *pcb);
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void elf_create_pcb(elf_info_t *info, pcb_t *pcb);
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#endif
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/** @}
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 */