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2963 | svoboda | 1 | /* |
2 | * Copyright (c) 2008 Jiri Svoboda |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup generic |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
35 | #ifndef ELF_LOAD_H_ |
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36 | #define ELF_LOAD_H_ |
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37 | |||
38 | #include <arch/elf.h> |
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39 | #include <sys/types.h> |
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40 | |||
41 | #include "elf.h" |
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2964 | svoboda | 42 | #include "pcb.h" |
2963 | svoboda | 43 | |
2964 | svoboda | 44 | /** |
45 | * Some data extracted from the headers are stored here |
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46 | */ |
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47 | typedef struct { |
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48 | /** Entry point */ |
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49 | entry_point_t entry; |
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2963 | svoboda | 50 | |
3004 | svoboda | 51 | /** ELF interpreter name or NULL if statically-linked */ |
52 | char *interp; |
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53 | |||
2964 | svoboda | 54 | /** Pointer to the dynamic section */ |
3004 | svoboda | 55 | void *dynamic; |
2964 | svoboda | 56 | } elf_info_t; |
57 | |||
58 | /** |
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59 | * Holds information about an ELF binary being loaded. |
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60 | */ |
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61 | typedef struct { |
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62 | /** Filedescriptor of the file from which we are loading */ |
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63 | int fd; |
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64 | |||
65 | /** Difference between run-time addresses and link-time addresses */ |
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66 | uintptr_t bias; |
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67 | |||
68 | /** A copy of the ELF file header */ |
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69 | elf_header_t *header; |
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70 | |||
71 | /** Store extracted info here */ |
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72 | elf_info_t *info; |
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73 | } elf_ld_t; |
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74 | |||
2972 | svoboda | 75 | int elf_load_file(char *file_name, size_t so_bias, elf_info_t *info); |
2964 | svoboda | 76 | void elf_run(elf_info_t *info); |
77 | int elf_create_pcb(elf_info_t *info); |
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78 | |||
2963 | svoboda | 79 | #endif |
80 | |||
81 | /** @} |
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82 | */ |