1 /* BFD back-end for Apple M68K COFF A/UX 3.x files. 2 Copyright (C) 1996-2014 Free Software Foundation, Inc. 3 Written by Richard Henderson <rth (at) tamu.edu>. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #define TARGET_SYM m68k_coff_aux_vec 23 #define TARGET_NAME "coff-m68k-aux" 24 25 #ifndef TARG_AUX 26 #define TARG_AUX 27 #endif 28 29 #define COFF_LONG_FILENAMES 30 31 /* 4k pages */ 32 #define COFF_PAGE_SIZE 0x1000 33 34 /* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library. */ 35 #define BSS_NOLOAD_IS_SHARED_LIBRARY 36 37 #define STATIC_RELOCS 38 39 #define COFF_COMMON_ADDEND 40 41 #include "sysdep.h" 42 #include "bfd.h" 43 44 #define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol 45 static bfd_boolean 46 coff_m68k_aux_link_add_one_symbol 47 (struct bfd_link_info *, bfd *, const char *, flagword, asection *, 48 bfd_vma, const char *, bfd_boolean, bfd_boolean, 49 struct bfd_link_hash_entry **); 50 51 #ifndef bfd_pe_print_pdata 52 #define bfd_pe_print_pdata NULL 53 #endif 54 55 #include "coff/aux-coff.h" /* override coff/internal.h and coff/m68k.h */ 56 #include "coff-m68k.c" 57 58 /* We need non-absolute symbols to override absolute symbols. This 59 mirrors Apple's "solution" to let a static library symbol override 60 a shared library symbol. On the whole not a good thing, given how 61 shared libraries work here, but can work if you are careful with 62 what you include in the shared object. */ 63 64 static bfd_boolean 65 coff_m68k_aux_link_add_one_symbol (struct bfd_link_info *info, 66 bfd *abfd, 67 const char *name, 68 flagword flags, 69 asection *section, 70 bfd_vma value, 71 const char *string, 72 bfd_boolean copy, 73 bfd_boolean collect, 74 struct bfd_link_hash_entry **hashp) 75 { 76 struct bfd_link_hash_entry *h, *inh, *t; 77 78 if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0 79 && !bfd_is_und_section (section) 80 && !bfd_is_com_section (section)) 81 { 82 /* The new symbol is a definition or an indirect definition */ 83 84 /* This bit copied from linker.c */ 85 if (hashp != NULL && *hashp != NULL) 86 h = *hashp; 87 else 88 { 89 h = bfd_link_hash_lookup (info->hash, name, TRUE, copy, FALSE); 90 if (h == NULL) 91 { 92 if (hashp != NULL) 93 *hashp = NULL; 94 return FALSE; 95 } 96 } 97 98 if (hashp != (struct bfd_link_hash_entry **) NULL) 99 *hashp = h; 100 /* end duplication from linker.c */ 101 102 t = h; 103 inh = NULL; 104 if (h->type == bfd_link_hash_indirect) 105 { 106 inh = h->u.i.link; 107 t = inh; 108 } 109 110 if (t->type == bfd_link_hash_defined) 111 { 112 asection *msec = t->u.def.section; 113 bfd_boolean special = FALSE; 114 115 if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section)) 116 { 117 t->u.def.section = section; 118 t->u.def.value = value; 119 special = TRUE; 120 } 121 else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec)) 122 special = TRUE; 123 124 if (special) 125 { 126 if (info->notice_all 127 || (info->notice_hash != NULL 128 && bfd_hash_lookup (info->notice_hash, name, 129 FALSE, FALSE) != NULL)) 130 { 131 if (!(*info->callbacks->notice) (info, h, inh, 132 abfd, section, value, flags)) 133 return FALSE; 134 } 135 136 return TRUE; 137 } 138 } 139 } 140 141 /* If we didn't exit early, finish processing in the generic routine */ 142 return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, 143 value, string, copy, collect, 144 hashp); 145 } 146
