1 | /* BFD back-end for Apple M68K COFF A/UX 3.x files. |
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2 | Copyright 1996, 1997, 2000 Free Software Foundation, Inc. |
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3 | Written by Richard Henderson <rth@tamu.edu>. |
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4 | |
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5 | This file is part of BFD, the Binary File Descriptor library. |
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6 | |
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7 | This program is free software; you can redistribute it and/or modify |
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8 | it under the terms of the GNU General Public License as published by |
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9 | the Free Software Foundation; either version 2 of the License, or |
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10 | (at your option) any later version. |
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11 | |
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12 | This program is distributed in the hope that it will be useful, |
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | GNU General Public License for more details. |
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16 | |
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17 | You should have received a copy of the GNU General Public License |
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18 | along with this program; if not, write to the Free Software |
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19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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20 | |
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21 | #define TARGET_SYM m68kaux_coff_vec |
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22 | #define TARGET_NAME "coff-m68k-aux" |
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23 | |
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24 | #ifndef TARG_AUX |
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25 | #define TARG_AUX |
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26 | #endif |
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27 | |
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28 | #define COFF_LONG_FILENAMES |
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29 | |
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30 | /* 4k pages */ |
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31 | #define COFF_PAGE_SIZE 0x1000 |
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32 | |
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33 | /* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library. */ |
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34 | #define BSS_NOLOAD_IS_SHARED_LIBRARY |
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35 | |
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36 | #define STATIC_RELOCS |
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37 | |
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38 | #define COFF_COMMON_ADDEND |
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39 | |
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40 | #include "bfd.h" |
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41 | #include "sysdep.h" |
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42 | |
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43 | static boolean coff_m68k_aux_link_add_one_symbol |
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44 | PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, |
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45 | asection *, bfd_vma, const char *, boolean, boolean, |
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46 | struct bfd_link_hash_entry **)); |
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47 | |
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48 | #define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol |
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49 | |
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50 | #include "coff/aux-coff.h" /* override coff/internal.h and coff/m68k.h */ |
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51 | #include "coff-m68k.c" |
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52 | |
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53 | /* We need non-absolute symbols to override absolute symbols. This |
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54 | mirrors Apple's "solution" to let a static library symbol override |
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55 | a shared library symbol. On the whole not a good thing, given how |
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56 | shared libraries work here, but can work if you are careful with |
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57 | what you include in the shared object. */ |
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58 | |
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59 | static boolean |
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60 | coff_m68k_aux_link_add_one_symbol (info, abfd, name, flags, section, value, |
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61 | string, copy, collect, hashp) |
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62 | struct bfd_link_info *info; |
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63 | bfd *abfd; |
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64 | const char *name; |
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65 | flagword flags; |
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66 | asection *section; |
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67 | bfd_vma value; |
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68 | const char *string; |
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69 | boolean copy; |
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70 | boolean collect; |
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71 | struct bfd_link_hash_entry **hashp; |
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72 | { |
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73 | struct bfd_link_hash_entry *h; |
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74 | |
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75 | if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0 && |
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76 | !bfd_is_und_section (section) && |
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77 | !bfd_is_com_section (section)) |
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78 | { |
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79 | /* The new symbol is a definition or an indirect definition */ |
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80 | |
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81 | /* This bit copied from linker.c */ |
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82 | if (hashp != NULL && *hashp != NULL) |
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83 | { |
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84 | h = *hashp; |
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85 | BFD_ASSERT (strcmp (h->root.string, name) == 0); |
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86 | } |
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87 | else |
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88 | { |
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89 | h = bfd_link_hash_lookup (info->hash, name, true, copy, false); |
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90 | if (h == NULL) |
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91 | { |
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92 | if (hashp != NULL) |
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93 | *hashp = NULL; |
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94 | return false; |
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95 | } |
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96 | } |
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97 | |
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98 | if (info->notice_hash != (struct bfd_hash_table *) NULL |
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99 | && (bfd_hash_lookup (info->notice_hash, name, false, false) |
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100 | != (struct bfd_hash_entry *) NULL)) |
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101 | { |
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102 | if (! (*info->callbacks->notice) (info, name, abfd, section, value)) |
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103 | return false; |
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104 | } |
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105 | |
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106 | if (hashp != (struct bfd_link_hash_entry **) NULL) |
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107 | *hashp = h; |
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108 | /* end duplication from linker.c */ |
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109 | |
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110 | if (h->type == bfd_link_hash_defined |
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111 | || h->type == bfd_link_hash_indirect) |
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112 | { |
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113 | asection *msec; |
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114 | |
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115 | if (h->type == bfd_link_hash_defined) |
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116 | msec = h->u.def.section; |
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117 | else |
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118 | msec = bfd_ind_section_ptr; |
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119 | |
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120 | if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section)) |
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121 | { |
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122 | h->u.def.section = section; |
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123 | h->u.def.value = value; |
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124 | return true; |
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125 | } |
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126 | else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec)) |
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127 | return true; |
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128 | } |
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129 | } |
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130 | |
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131 | /* If we didn't exit early, finish processing in the generic routine */ |
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132 | return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, |
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133 | value, string, copy, collect, |
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134 | hashp); |
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135 | } |
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