| 1 | /* ldemul.c -- clearing house for ld emulation states |
| 2 | Copyright (C) 1991, 1993 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GLD, the Gnu Linker. |
| 5 | |
| 6 | GLD is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GLD is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GLD; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #include "bfd.h" |
| 21 | #include "sysdep.h" |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include "ld.h" |
| 25 | #include "ldemul.h" |
| 26 | #include "ldmisc.h" |
| 27 | #include "ldexp.h" |
| 28 | #include "ldlang.h" |
| 29 | #include "ldfile.h" |
| 30 | #include "ldmain.h" |
| 31 | #include "ldemul-list.h" |
| 32 | |
| 33 | ld_emulation_xfer_type *ld_emulation; |
| 34 | |
| 35 | void |
| 36 | ldemul_hll(name) |
| 37 | char *name; |
| 38 | { |
| 39 | ld_emulation->hll(name); |
| 40 | } |
| 41 | |
| 42 | |
| 43 | void ldemul_syslib(name) |
| 44 | char *name; |
| 45 | { |
| 46 | ld_emulation->syslib(name); |
| 47 | } |
| 48 | |
| 49 | void |
| 50 | ldemul_after_parse() |
| 51 | { |
| 52 | ld_emulation->after_parse(); |
| 53 | } |
| 54 | |
| 55 | void |
| 56 | ldemul_before_parse() |
| 57 | { |
| 58 | ld_emulation->before_parse(); |
| 59 | } |
| 60 | |
| 61 | void |
| 62 | ldemul_after_open () |
| 63 | { |
| 64 | ld_emulation->after_open (); |
| 65 | } |
| 66 | |
| 67 | void |
| 68 | ldemul_after_allocation() |
| 69 | { |
| 70 | ld_emulation->after_allocation(); |
| 71 | } |
| 72 | |
| 73 | void |
| 74 | ldemul_before_allocation() |
| 75 | { |
| 76 | if (ld_emulation->before_allocation) |
| 77 | ld_emulation->before_allocation(); |
| 78 | } |
| 79 | |
| 80 | |
| 81 | void |
| 82 | ldemul_set_output_arch() |
| 83 | { |
| 84 | ld_emulation->set_output_arch(); |
| 85 | } |
| 86 | |
| 87 | void |
| 88 | ldemul_finish() |
| 89 | { |
| 90 | if (ld_emulation->finish) |
| 91 | ld_emulation->finish(); |
| 92 | } |
| 93 | |
| 94 | void |
| 95 | ldemul_create_output_section_statements() |
| 96 | { |
| 97 | if (ld_emulation->create_output_section_statements) |
| 98 | ld_emulation->create_output_section_statements(); |
| 99 | } |
| 100 | |
| 101 | char * |
| 102 | ldemul_get_script(isfile) |
| 103 | int *isfile; |
| 104 | { |
| 105 | return ld_emulation->get_script(isfile); |
| 106 | } |
| 107 | |
| 108 | boolean |
| 109 | ldemul_open_dynamic_archive (arch, entry) |
| 110 | const char *arch; |
| 111 | lang_input_statement_type *entry; |
| 112 | { |
| 113 | if (ld_emulation->open_dynamic_archive) |
| 114 | return (*ld_emulation->open_dynamic_archive) (arch, entry); |
| 115 | return false; |
| 116 | } |
| 117 | |
| 118 | boolean |
| 119 | ldemul_place_orphan (file, s) |
| 120 | lang_input_statement_type *file; |
| 121 | asection *s; |
| 122 | { |
| 123 | if (ld_emulation->place_orphan) |
| 124 | return (*ld_emulation->place_orphan) (file, s); |
| 125 | return false; |
| 126 | } |
| 127 | |
| 128 | char * |
| 129 | ldemul_choose_target() |
| 130 | { |
| 131 | return ld_emulation->choose_target(); |
| 132 | } |
| 133 | |
| 134 | /* The default choose_target function. */ |
| 135 | |
| 136 | char * |
| 137 | ldemul_default_target() |
| 138 | { |
| 139 | char *from_outside = getenv(TARGET_ENVIRON); |
| 140 | if (from_outside != (char *)NULL) |
| 141 | return from_outside; |
| 142 | return ld_emulation->target_name; |
| 143 | } |
| 144 | |
| 145 | void |
| 146 | after_parse_default() |
| 147 | { |
| 148 | |
| 149 | } |
| 150 | |
| 151 | void |
| 152 | after_open_default () |
| 153 | { |
| 154 | } |
| 155 | |
| 156 | void |
| 157 | after_allocation_default() |
| 158 | { |
| 159 | |
| 160 | } |
| 161 | |
| 162 | void |
| 163 | before_allocation_default() |
| 164 | { |
| 165 | |
| 166 | } |
| 167 | |
| 168 | void |
| 169 | set_output_arch_default() |
| 170 | { |
| 171 | /* Set the output architecture and machine if possible */ |
| 172 | bfd_set_arch_mach(output_bfd, |
| 173 | ldfile_output_architecture, ldfile_output_machine); |
| 174 | } |
| 175 | |
| 176 | /*ARGSUSED*/ |
| 177 | void |
| 178 | syslib_default(ignore) |
| 179 | char *ignore; |
| 180 | { |
| 181 | info_msg ("%S SYSLIB ignored\n"); |
| 182 | } |
| 183 | |
| 184 | /*ARGSUSED*/ |
| 185 | void |
| 186 | hll_default(ignore) |
| 187 | char *ignore; |
| 188 | { |
| 189 | info_msg ("%S HLL ignored\n"); |
| 190 | } |
| 191 | |
| 192 | ld_emulation_xfer_type *ld_emulations[] = { EMULATION_LIST }; |
| 193 | |
| 194 | void |
| 195 | ldemul_choose_mode(target) |
| 196 | char *target; |
| 197 | { |
| 198 | ld_emulation_xfer_type **eptr = ld_emulations; |
| 199 | /* Ignore "gld" prefix. */ |
| 200 | if (target[0] == 'g' && target[1] == 'l' && target[2] == 'd') |
| 201 | target += 3; |
| 202 | for (; *eptr; eptr++) |
| 203 | { |
| 204 | if (strcmp(target, (*eptr)->emulation_name) == 0) |
| 205 | { |
| 206 | ld_emulation = *eptr; |
| 207 | return; |
| 208 | } |
| 209 | } |
| 210 | einfo("%P%F: unrecognised emulation mode: %s\n",target); |
| 211 | } |
| 212 | |
| 213 | void |
| 214 | ldemul_list_emulations (f) |
| 215 | FILE *f; |
| 216 | { |
| 217 | ld_emulation_xfer_type **eptr = ld_emulations; |
| 218 | boolean first = true; |
| 219 | |
| 220 | for (; *eptr; eptr++) |
| 221 | { |
| 222 | if (first) |
| 223 | first = false; |
| 224 | else |
| 225 | fprintf (f, " "); |
| 226 | fprintf (f, "%s", (*eptr)->emulation_name); |
| 227 | } |
| 228 | } |