1 /* ld.h -- general linker header file
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
6 This file is part of the GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
37 /* The Solaris version of locale.h always includes libintl.h. If we have
38 been configured with --disable-nls then ENABLE_NLS will not be defined
39 and the dummy definitions of bindtextdomain (et al) below will conflict
40 with the defintions in libintl.h. So we define these values to prevent
41 the bogus inclusion of libintl.h. */
43 # define _LIBGETTEXT_H
50 # define _(String) gettext (String)
52 # define N_(String) gettext_noop (String)
54 # define N_(String) (String)
57 # define gettext(Msgid) (Msgid)
58 # define dgettext(Domainname, Msgid) (Msgid)
59 # define dcgettext(Domainname, Msgid, Category) (Msgid)
60 # define textdomain(Domainname) while (0) /* nothing */
61 # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */
62 # define _(String) (String)
63 # define N_(String) (String)
66 /* Look in this environment name for the linker to pretend to be */
67 #define EMULATION_ENVIRON "LDEMULATION"
68 /* If in there look for the strings: */
70 /* Look in this variable for a target format */
71 #define TARGET_ENVIRON "GNUTARGET"
73 /* Input sections which are put in a section of this name are actually
75 #define DISCARD_SECTION_NAME "/DISCARD/"
77 /* A file name list */
78 typedef struct name_list
{
80 struct name_list
*next
;
84 typedef enum {sort_none
, sort_ascending
, sort_descending
} sort_order
;
86 /* A wildcard specification. */
89 none
, by_name
, by_alignment
, by_name_alignment
, by_alignment_name
,
90 by_none
, by_init_priority
93 extern sort_type sort_section
;
95 struct wildcard_spec
{
97 struct name_list
*exclude_name_list
;
99 struct flag_info
*section_flag_list
;
102 struct wildcard_list
{
103 struct wildcard_list
*next
;
104 struct wildcard_spec spec
;
107 #define BYTE_SIZE (1)
108 #define SHORT_SIZE (2)
109 #define LONG_SIZE (4)
110 #define QUAD_SIZE (8)
112 enum endian_enum
{ ENDIAN_UNSET
= 0, ENDIAN_BIG
, ENDIAN_LITTLE
};
121 enum dynamic_list_enum
123 dynamic_list_unset
= 0,
129 /* 1 => assign space to common symbols even if `relocatable_output'. */
130 bfd_boolean force_common_definition
;
132 /* 1 => do not assign addresses to common symbols. */
133 bfd_boolean inhibit_common_definition
;
135 /* If TRUE, build MIPS embedded PIC relocation tables in the output
137 bfd_boolean embedded_relocs
;
139 /* If TRUE, force generation of a file with a .exe file. */
140 bfd_boolean force_exe_suffix
;
142 /* If TRUE, generate a cross reference report. */
145 /* If TRUE (which is the default), warn about mismatched input
147 bfd_boolean warn_mismatch
;
149 /* Warn on attempting to open an incompatible library during a library
151 bfd_boolean warn_search_mismatch
;
153 /* If non-zero check section addresses, once computed,
154 for overlaps. Relocatable links only check when this is > 0. */
155 signed char check_section_addresses
;
157 /* If TRUE allow the linking of input files in an unknown architecture
158 assuming that the user knows what they are doing. This was the old
159 behaviour of the linker. The new default behaviour is to reject such
161 bfd_boolean accept_unknown_input_arch
;
163 /* If TRUE we'll just print the default output on stdout. */
164 bfd_boolean print_output_format
;
166 /* Big or little endian as set on command line. */
167 enum endian_enum endian
;
169 /* -Bsymbolic and -Bsymbolic-functions, as set on command line. */
170 enum symbolic_enum symbolic
;
172 /* --dynamic-list, --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo
173 and --dynamic-list FILE, as set on command line. */
174 enum dynamic_list_enum dynamic_list
;
176 /* Name of runtime interpreter to invoke. */
179 /* Name to give runtime libary from the -soname argument. */
182 /* Runtime library search path from the -rpath argument. */
185 /* Link time runtime library search path from the -rpath-link
189 /* Name of shared object whose symbol table should be filtered with
190 this shared object. From the --filter option. */
193 /* Name of shared object for whose symbol table this shared object
194 is an auxiliary filter. From the --auxiliary option. */
195 char **auxiliary_filters
;
197 /* A version symbol to be applied to the symbol names found in the
198 .exports sections. */
199 char *version_exports_section
;
201 /* Default linker script. */
202 char *default_script
;
205 extern args_type command_line
;
207 typedef int token_code_type
;
210 bfd_boolean magic_demand_paged
;
211 bfd_boolean make_executable
;
213 /* If TRUE, -shared is supported. */
214 /* ??? A better way to do this is perhaps to define this in the
215 ld_emulation_xfer_struct since this is really a target dependent
217 bfd_boolean has_shared
;
219 /* If TRUE, build constructors. */
220 bfd_boolean build_constructors
;
222 /* If TRUE, warn about any constructors. */
223 bfd_boolean warn_constructors
;
225 /* If TRUE, warn about merging common symbols with others. */
226 bfd_boolean warn_common
;
228 /* If TRUE, only warn once about a particular undefined symbol. */
229 bfd_boolean warn_once
;
231 /* If TRUE, warn if multiple global-pointers are needed (Alpha
233 bfd_boolean warn_multiple_gp
;
235 /* If TRUE, warn if the starting address of an output section
236 changes due to the alignment of an input section. */
237 bfd_boolean warn_section_align
;
239 /* If TRUE, warning messages are fatal */
240 bfd_boolean fatal_warnings
;
242 sort_order sort_common
;
244 bfd_boolean text_read_only
;
248 /* If set, orphan input sections will be mapped to separate output
250 bfd_boolean unique_orphan_sections
;
252 /* If set, only search library directories explicitly selected
253 on the command line. */
254 bfd_boolean only_cmd_line_lib_dirs
;
256 /* If set, numbers and absolute symbols are simply treated as
257 numbers everywhere. */
258 bfd_boolean sane_expr
;
260 /* If set, code and non-code sections should never be in one segment. */
261 bfd_boolean separate_code
;
263 /* The rpath separation character. Usually ':'. */
264 char rpath_separator
;
269 unsigned int split_by_reloc
;
270 bfd_size_type split_by_file
;
272 bfd_size_type specified_data_size
;
274 /* The size of the hash table to use. */
275 unsigned long hash_table_size
;
277 /* The maximum page size for ELF. */
280 /* The common page size for ELF. */
281 bfd_vma commonpagesize
;
284 extern ld_config_type config
;
286 extern FILE * saved_script_handle
;
287 extern bfd_boolean force_make_executable
;
289 extern int yyparse (void);
290 extern void add_cref (const char *, bfd
*, asection
*, bfd_vma
);
291 extern bfd_boolean
handle_asneeded_cref (bfd
*, enum notice_asneeded_action
);
292 extern void output_cref (FILE *);
293 extern void check_nocrossrefs (void);
294 extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN
;
296 /* If gcc >= 2.6, we can give a function name, too. */
297 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
298 #define __PRETTY_FUNCTION__ NULL
302 #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)