1 | /*- |
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2 | * Copyright (c) 2006,2008-2011 Joseph Koshy |
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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 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | */ |
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26 | |
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27 | #include <assert.h> |
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28 | #include <libelf.h> |
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29 | #include <string.h> |
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30 | |
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31 | #include "_libelf.h" |
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32 | |
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33 | ELFTC_VCSID("$Id: libelf_msize.m4 3174 2015-03-27 17:13:41Z emaste $"); |
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34 | |
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35 | /* WARNING: GENERATED FROM __file__. */ |
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36 | |
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37 | struct msize { |
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38 | size_t msz32; |
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39 | size_t msz64; |
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40 | }; |
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41 | |
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42 | divert(-1) |
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43 | include(SRCDIR`/elf_types.m4') |
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44 | |
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45 | /* |
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46 | * ELF types whose memory representations have a variable size. |
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47 | */ |
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48 | define(BYTE_SIZE, 1) |
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49 | define(GNUHASH_SIZE, 1) |
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50 | define(NOTE_SIZE, 1) |
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51 | define(VDEF_SIZE, 1) |
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52 | define(VNEED_SIZE, 1) |
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53 | |
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54 | /* |
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55 | * Unimplemented types. |
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56 | */ |
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57 | define(MOVEP_SIZE, 0) |
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58 | define(SXWORD_SIZE32, 0) |
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59 | define(XWORD_SIZE32, 0) |
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60 | |
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61 | define(`DEFINE_ELF_MSIZE', |
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62 | `ifdef($1`_SIZE', |
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63 | `define($1_SIZE32,$1_SIZE) |
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64 | define($1_SIZE64,$1_SIZE)', |
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65 | `ifdef($1`_SIZE32',`', |
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66 | `define($1_SIZE32,sizeof(Elf32_$2))') |
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67 | ifdef($1`_SIZE64',`', |
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68 | `define($1_SIZE64,sizeof(Elf64_$2))')')') |
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69 | define(`DEFINE_ELF_MSIZES', |
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70 | `ifelse($#,1,`', |
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71 | `DEFINE_ELF_MSIZE($1) |
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72 | DEFINE_ELF_MSIZES(shift($@))')') |
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73 | |
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74 | DEFINE_ELF_MSIZES(ELF_TYPE_LIST) |
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75 | |
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76 | define(`MSIZE', |
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77 | `[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 }, |
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78 | ') |
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79 | define(`MSIZES', |
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80 | `ifelse($#,1,`', |
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81 | `MSIZE($1) |
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82 | MSIZES(shift($@))')') |
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83 | |
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84 | divert(0) |
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85 | |
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86 | static struct msize msize[ELF_T_NUM] = { |
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87 | MSIZES(ELF_TYPE_LIST) |
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88 | }; |
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89 | |
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90 | size_t |
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91 | _libelf_msize(Elf_Type t, int elfclass, unsigned int version) |
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92 | { |
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93 | size_t sz; |
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94 | |
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95 | assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64); |
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96 | assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST); |
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97 | |
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98 | if (version != EV_CURRENT) { |
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99 | LIBELF_SET_ERROR(VERSION, 0); |
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100 | return (0); |
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101 | } |
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102 | |
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103 | sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64; |
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104 | |
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105 | return (sz); |
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106 | } |
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