1 | /* |
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2 | * Copyright (c) 2012, Chris Johns <chrisj@rtems.org> |
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3 | * |
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4 | * Permission to use, copy, modify, and/or distribute this software for any |
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5 | * purpose with or without fee is hereby granted, provided that the above |
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6 | * copyright notice and this permission notice appear in all copies. |
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7 | * |
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8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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15 | */ |
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16 | /** |
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17 | * @file |
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18 | * |
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19 | * @ingroup rtems-ld |
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20 | * |
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21 | * @brief RTEMS Linker RTEMS Application (RAP) Format management. |
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22 | * |
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23 | */ |
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24 | |
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25 | #if !defined (_RLD_RAP_H_) |
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26 | #define _RLD_RAP_H_ |
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27 | |
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28 | #include <rld-files.h> |
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29 | |
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30 | namespace rld |
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31 | { |
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32 | namespace rap |
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33 | { |
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34 | /** |
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35 | * Output details or not. |
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36 | */ |
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37 | extern bool add_obj_details; |
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38 | |
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39 | /** |
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40 | * Store the path of object files. |
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41 | */ |
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42 | extern std::string rpath; |
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43 | |
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44 | /** |
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45 | * The RAP relocation bit masks. |
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46 | */ |
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47 | #define RAP_RELOC_RELA (1UL << 31) |
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48 | #define RAP_RELOC_STRING (1UL << 31) |
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49 | #define RAP_RELOC_STRING_EMBED (1UL << 30) |
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50 | |
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51 | /** |
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52 | * The sections of interest in a RAP file. |
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53 | */ |
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54 | enum sections |
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55 | { |
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56 | rap_text = 0, |
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57 | rap_const = 1, |
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58 | rap_ctor = 2, |
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59 | rap_dtor = 3, |
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60 | rap_data = 4, |
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61 | rap_bss = 5, |
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62 | rap_secs = 6 |
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63 | }; |
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64 | |
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65 | /** |
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66 | * Return the name of a section. |
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67 | */ |
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68 | const char* section_name (int sec); |
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69 | |
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70 | /** |
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71 | * Write a RAP format file. |
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72 | * |
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73 | * The symbol table is provided to allow incremental linking at some point |
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74 | * in the future. I suspect this will also require extra options being |
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75 | * added to control symbol visibility in the RAP file. For example an |
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76 | * "application" may be self contained and does not need to export any |
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77 | * symbols therefore no symbols are added and the only ones are part of the |
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78 | * relocation records to bind to base image symbols. Another case is the |
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79 | * need for an application to export symbols because it is using dlopen to |
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80 | * load modules. Here the symbols maybe 'all' or it could be a user |
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81 | * maintained list that are exported. |
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82 | * |
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83 | * @param app The application image to write too. |
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84 | * @param init The application's initialisation entry point. |
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85 | * @param fini The application's finish entry point . |
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86 | * @param objects The list of object files in the application. |
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87 | * @param symbols The symbol table used to create the application. |
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88 | */ |
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89 | void write (files::image& app, |
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90 | const std::string& init, |
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91 | const std::string& fini, |
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92 | const files::object_list& objects, |
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93 | const symbols::table& symbols); |
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94 | } |
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95 | } |
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96 | |
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97 | #endif |
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