1 /* Parse options for the GNU linker.
2 Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
4 This file is part of GLD, the Gnu Linker.
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)
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.
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. */
37 /* Omit args to avoid the possibility of clashing with a system header
38 that might disagree about consts. */
39 unsigned long strtoul ();
41 static void set_default_dirlist PARAMS ((char *dirlist_ptr));
42 static void set_section_start PARAMS ((char *sect, char *valstr));
45 parse_args (argc, argv)
51 /* Starting the short option string with '-' is for programs that
52 expect options and other ARGV-elements in any order and that care about
53 the ordering of the two. We describe each non-option ARGV-element
54 as if it were the argument of an option with character code 1. */
56 const char *shortopts =
57 "-A:B::b:cde:F::G:giL:l:Mm:NnO:o:R:rSsT:tu:VvXxY:y:()";
59 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
61 #define OPTION_CALL_SHARED 150
62 #define OPTION_DEFSYM (OPTION_CALL_SHARED + 1)
63 #define OPTION_DYNAMIC_LINKER (OPTION_DEFSYM + 1)
64 #define OPTION_EB (OPTION_DYNAMIC_LINKER + 1)
65 #define OPTION_EL (OPTION_EB + 1)
66 #define OPTION_HELP (OPTION_EL + 1)
67 #define OPTION_IGNORE (OPTION_HELP + 1)
68 #define OPTION_MAP (OPTION_IGNORE + 1)
69 #define OPTION_NO_KEEP_MEMORY (OPTION_MAP + 1)
70 #define OPTION_NOINHIBIT_EXEC (OPTION_NO_KEEP_MEMORY + 1)
71 #define OPTION_NON_SHARED (OPTION_NOINHIBIT_EXEC + 1)
72 #define OPTION_OFORMAT (OPTION_NON_SHARED + 1)
73 #define OPTION_RELAX (OPTION_OFORMAT + 1)
74 #define OPTION_RETAIN_SYMBOLS_FILE (OPTION_RELAX + 1)
75 #define OPTION_SHARED (OPTION_RETAIN_SYMBOLS_FILE + 1)
76 #define OPTION_SORT_COMMON (OPTION_SHARED + 1)
77 #define OPTION_STATS (OPTION_SORT_COMMON + 1)
78 #define OPTION_TBSS (OPTION_STATS + 1)
79 #define OPTION_TDATA (OPTION_TBSS + 1)
80 #define OPTION_TTEXT (OPTION_TDATA + 1)
81 #define OPTION_TRADITIONAL_FORMAT (OPTION_TTEXT + 1)
82 #define OPTION_UR (OPTION_TRADITIONAL_FORMAT + 1)
83 #define OPTION_VERSION (OPTION_UR + 1)
84 #define OPTION_WARN_COMMON (OPTION_VERSION + 1)
86 static struct option longopts[] = {
87 {"Bdynamic", no_argument, NULL, OPTION_CALL_SHARED},
88 {"Bstatic", no_argument, NULL, OPTION_NON_SHARED},
89 {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
90 {"dc", no_argument, NULL, 'd'},
91 {"defsym", required_argument, NULL, OPTION_DEFSYM},
92 {"dn", no_argument, NULL, OPTION_NON_SHARED},
93 {"dp", no_argument, NULL, 'd'},
94 {"dy", no_argument, NULL, OPTION_CALL_SHARED},
95 {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
96 {"EB", no_argument, NULL, OPTION_EB},
97 {"EL", no_argument, NULL, OPTION_EL},
98 {"end-group", no_argument, NULL, ')'},
99 {"format", required_argument, NULL, 'b'},
100 {"help", no_argument, NULL, OPTION_HELP},
101 {"Map", required_argument, NULL, OPTION_MAP},
102 {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
103 {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
104 {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
105 {"non_shared", no_argument, NULL, OPTION_NON_SHARED},
106 {"oformat", required_argument, NULL, OPTION_OFORMAT},
107 {"Qy", no_argument, NULL, OPTION_IGNORE},
108 {"qmagic", no_argument, NULL, OPTION_IGNORE}, /* Linux compatibility. */
109 {"relax", no_argument, NULL, OPTION_RELAX},
110 {"retain-symbols-file", required_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE},
111 {"shared", no_argument, NULL, OPTION_SHARED},
112 {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
113 {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
114 {"start-group", no_argument, NULL, '('},
115 {"stats", no_argument, NULL, OPTION_STATS},
116 {"static", no_argument, NULL, OPTION_NON_SHARED},
117 {"Tbss", required_argument, NULL, OPTION_TBSS},
118 {"Tdata", required_argument, NULL, OPTION_TDATA},
119 {"Ttext", required_argument, NULL, OPTION_TTEXT},
120 {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
121 {"Ur", no_argument, NULL, OPTION_UR},
122 {"version", no_argument, NULL, OPTION_VERSION},
123 {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
124 {NULL, no_argument, NULL, 0}
129 /* getopt_long_only is like getopt_long, but '-' as well as '--' can
130 indicate a long option. */
132 int optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
141 case 1: /* File name. */
142 lang_add_input_file (optarg, lang_input_file_is_file_enum,
149 ldfile_add_arch (optarg);
152 lang_add_target (optarg);
155 ldfile_open_command_file (optarg);
156 parser_input = input_mri_script;
159 case OPTION_CALL_SHARED:
160 config.dynamic_link = true;
162 case OPTION_NON_SHARED:
163 config.dynamic_link = false;
166 command_line.force_common_definition = true;
169 lex_redirect (optarg);
170 parser_input = input_defsym;
173 case OPTION_DYNAMIC_LINKER:
174 command_line.interpreter = optarg;
177 /* FIXME: This is currently ignored. It means
178 ``produce a big-endian object file''. It could
179 be used to select an output format. */
182 /* FIXME: This is currently ignored. It means
183 ``produce a little-endian object file''. It could
184 be used to select an output format. */
187 lang_add_entry (optarg, 1);
195 g_switch_value = strtoul (optarg, &end, 0);
197 einfo ("%P%F: invalid number `%s'\n", optarg);
208 ldfile_add_library_path (optarg, true);
211 lang_add_input_file (optarg, lang_input_file_is_l_enum,
215 config.map_filename = "-";
218 /* Ignore. Was handled in a pre-parse. */
221 config.map_filename = optarg;
224 config.text_read_only = false;
225 config.magic_demand_paged = false;
228 config.magic_demand_paged = false;
230 case OPTION_NO_KEEP_MEMORY:
231 link_info.keep_memory = false;
233 case OPTION_NOINHIBIT_EXEC:
234 force_make_executable = true;
237 /* FIXME "-O<non-digits> <value>" used to set the address of
238 section <non-digits>. Was this for compatibility with
239 something, or can we create a new option to do that
240 (with a syntax similar to -defsym)?
241 getopt can't handle two args to an option without kludges. */
242 set_default_dirlist (optarg);
245 lang_add_output (optarg, 0);
248 lang_add_output_format (optarg, 0);
252 link_info.relocateable = true;
253 config.build_constructors = false;
254 config.magic_demand_paged = false;
255 config.text_read_only = false;
256 config.dynamic_link = false;
259 lang_add_input_file (optarg,
260 lang_input_file_is_symbols_only_enum,
264 command_line.relax = true;
266 case OPTION_RETAIN_SYMBOLS_FILE:
267 add_keepsyms_file (optarg);
270 link_info.strip = strip_debugger;
273 link_info.strip = strip_all;
276 link_info.shared = true;
278 case OPTION_SORT_COMMON:
279 config.sort_common = true;
288 ldfile_open_command_file (optarg);
289 parser_input = input_script;
293 set_section_start (".bss", optarg);
296 set_section_start (".data", optarg);
299 set_section_start (".text", optarg);
301 case OPTION_TRADITIONAL_FORMAT:
302 config.traditional_format = true;
305 link_info.relocateable = true;
306 config.build_constructors = true;
307 config.magic_demand_paged = false;
308 config.text_read_only = false;
309 config.dynamic_link = false;
312 ldlang_add_undef (optarg);
316 version_printed = true;
317 trace_file_tries = true;
321 version_printed = true;
325 version_printed = true;
327 case OPTION_WARN_COMMON:
328 config.warn_common = true;
331 link_info.discard = discard_l;
334 link_info.discard = discard_all;
337 set_default_dirlist (optarg);
346 "%s: may not nest groups (--help for usage)\n",
357 "%s: group ended before it began (--help for usage)\n",
371 /* Add the (colon-separated) elements of DIRLIST_PTR to the
372 library search path. */
375 set_default_dirlist (dirlist_ptr)
382 p = strchr (dirlist_ptr, ':');
386 ldfile_add_library_path (dirlist_ptr, true);
395 set_section_start (sect, valstr)
399 unsigned long val = strtoul (valstr, &end, 16);
401 einfo ("%P%F: invalid hex number `%s'\n", valstr);
402 lang_section_start (sect, exp_intop (val));