| 1 | /* ld.h -- general linker header file |
| 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GLD, the Gnu Linker. |
| 6 | |
| 7 | GLD 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 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GLD 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 GLD; see the file COPYING. If not, write to the Free |
| 19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 20 | 02111-1307, USA. */ |
| 21 | |
| 22 | #ifndef LD_H |
| 23 | #define LD_H |
| 24 | |
| 25 | #ifdef HAVE_LOCALE_H |
| 26 | # include <locale.h> |
| 27 | #endif |
| 28 | |
| 29 | #ifdef ENABLE_NLS |
| 30 | # include <libintl.h> |
| 31 | # define _(String) gettext (String) |
| 32 | # ifdef gettext_noop |
| 33 | # define N_(String) gettext_noop (String) |
| 34 | # else |
| 35 | # define N_(String) (String) |
| 36 | # endif |
| 37 | #else |
| 38 | # define gettext(Msgid) (Msgid) |
| 39 | # define dgettext(Domainname, Msgid) (Msgid) |
| 40 | # define dcgettext(Domainname, Msgid, Category) (Msgid) |
| 41 | # define textdomain(Domainname) while (0) /* nothing */ |
| 42 | # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ |
| 43 | # define _(String) (String) |
| 44 | # define N_(String) (String) |
| 45 | #endif |
| 46 | |
| 47 | #include "bin-bugs.h" |
| 48 | |
| 49 | /* Look in this environment name for the linker to pretend to be */ |
| 50 | #define EMULATION_ENVIRON "LDEMULATION" |
| 51 | /* If in there look for the strings: */ |
| 52 | |
| 53 | /* Look in this variable for a target format */ |
| 54 | #define TARGET_ENVIRON "GNUTARGET" |
| 55 | |
| 56 | /* Input sections which are put in a section of this name are actually |
| 57 | discarded. */ |
| 58 | #define DISCARD_SECTION_NAME "/DISCARD/" |
| 59 | |
| 60 | /* A file name list */ |
| 61 | typedef struct name_list { |
| 62 | const char *name; |
| 63 | struct name_list *next; |
| 64 | } |
| 65 | name_list; |
| 66 | |
| 67 | /* A wildcard specification. This is only used in ldgram.y, but it |
| 68 | winds up in ldgram.h, so we need to define it outside. */ |
| 69 | |
| 70 | struct wildcard_spec { |
| 71 | const char *name; |
| 72 | struct name_list *exclude_name_list; |
| 73 | boolean sorted; |
| 74 | }; |
| 75 | |
| 76 | /* Extra information we hold on sections */ |
| 77 | typedef struct user_section_struct { |
| 78 | /* Pointer to the section where this data will go */ |
| 79 | struct lang_input_statement_struct *file; |
| 80 | } section_userdata_type; |
| 81 | |
| 82 | #define get_userdata(x) ((x)->userdata) |
| 83 | |
| 84 | #define BYTE_SIZE (1) |
| 85 | #define SHORT_SIZE (2) |
| 86 | #define LONG_SIZE (4) |
| 87 | #define QUAD_SIZE (8) |
| 88 | |
| 89 | /* ALIGN macro changed to ALIGN_N to avoid */ |
| 90 | /* conflict in /usr/include/machine/machparam.h */ |
| 91 | /* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int, |
| 92 | you must coerce boundary to the same type as THIS. |
| 93 | ??? Is there a portable way to avoid this. */ |
| 94 | #define ALIGN_N(this, boundary) \ |
| 95 | ((( (this) + ((boundary) -1)) & (~((boundary)-1)))) |
| 96 | |
| 97 | typedef struct { |
| 98 | /* 1 => assign space to common symbols even if `relocatable_output'. */ |
| 99 | boolean force_common_definition; |
| 100 | boolean relax; |
| 101 | |
| 102 | /* Name of runtime interpreter to invoke. */ |
| 103 | char *interpreter; |
| 104 | |
| 105 | /* Name to give runtime libary from the -soname argument. */ |
| 106 | char *soname; |
| 107 | |
| 108 | /* Runtime library search path from the -rpath argument. */ |
| 109 | char *rpath; |
| 110 | |
| 111 | /* Link time runtime library search path from the -rpath-link |
| 112 | argument. */ |
| 113 | char *rpath_link; |
| 114 | |
| 115 | /* Big or little endian as set on command line. */ |
| 116 | enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian; |
| 117 | |
| 118 | /* If true, export all symbols in the dynamic symbol table of an ELF |
| 119 | executable. */ |
| 120 | boolean export_dynamic; |
| 121 | |
| 122 | /* If true, build MIPS embedded PIC relocation tables in the output |
| 123 | file. */ |
| 124 | boolean embedded_relocs; |
| 125 | |
| 126 | /* If true, force generation of a file with a .exe file. */ |
| 127 | boolean force_exe_suffix; |
| 128 | |
| 129 | /* If true, generate a cross reference report. */ |
| 130 | boolean cref; |
| 131 | |
| 132 | /* If true (which is the default), warn about mismatched input |
| 133 | files. */ |
| 134 | boolean warn_mismatch; |
| 135 | |
| 136 | /* Remove unreferenced sections? */ |
| 137 | boolean gc_sections; |
| 138 | |
| 139 | /* Name of shared object whose symbol table should be filtered with |
| 140 | this shared object. From the --filter option. */ |
| 141 | char *filter_shlib; |
| 142 | |
| 143 | /* Name of shared object for whose symbol table this shared object |
| 144 | is an auxiliary filter. From the --auxiliary option. */ |
| 145 | char **auxiliary_filters; |
| 146 | |
| 147 | /* A version symbol to be applied to the symbol names found in the |
| 148 | .exports sections. */ |
| 149 | char *version_exports_section; |
| 150 | |
| 151 | /* If true (the default) check section addresses, once compute, |
| 152 | fpor overlaps. */ |
| 153 | boolean check_section_addresses; |
| 154 | |
| 155 | } args_type; |
| 156 | |
| 157 | extern args_type command_line; |
| 158 | |
| 159 | typedef int token_code_type; |
| 160 | |
| 161 | typedef struct { |
| 162 | bfd_size_type specified_data_size; |
| 163 | boolean magic_demand_paged; |
| 164 | boolean make_executable; |
| 165 | |
| 166 | /* If true, doing a dynamic link. */ |
| 167 | boolean dynamic_link; |
| 168 | |
| 169 | /* If true, -shared is supported. */ |
| 170 | /* ??? A better way to do this is perhaps to define this in the |
| 171 | ld_emulation_xfer_struct since this is really a target dependent |
| 172 | parameter. */ |
| 173 | boolean has_shared; |
| 174 | |
| 175 | /* If true, build constructors. */ |
| 176 | boolean build_constructors; |
| 177 | |
| 178 | /* If true, warn about any constructors. */ |
| 179 | boolean warn_constructors; |
| 180 | |
| 181 | /* If true, warn about merging common symbols with others. */ |
| 182 | boolean warn_common; |
| 183 | |
| 184 | /* If true, only warn once about a particular undefined symbol. */ |
| 185 | boolean warn_once; |
| 186 | |
| 187 | /* If true, warn if multiple global-pointers are needed (Alpha |
| 188 | only). */ |
| 189 | boolean warn_multiple_gp; |
| 190 | |
| 191 | /* If true, warn if the starting address of an output section |
| 192 | changes due to the alignment of an input section. */ |
| 193 | boolean warn_section_align; |
| 194 | |
| 195 | /* If true, warning messages are fatal */ |
| 196 | boolean fatal_warnings; |
| 197 | |
| 198 | boolean sort_common; |
| 199 | |
| 200 | boolean text_read_only; |
| 201 | |
| 202 | char *map_filename; |
| 203 | FILE *map_file; |
| 204 | |
| 205 | boolean stats; |
| 206 | |
| 207 | /* If set, orphan input sections will be mapped to separate output |
| 208 | sections. */ |
| 209 | boolean unique_orphan_sections; |
| 210 | |
| 211 | unsigned int split_by_reloc; |
| 212 | bfd_size_type split_by_file; |
| 213 | } ld_config_type; |
| 214 | |
| 215 | extern ld_config_type config; |
| 216 | |
| 217 | typedef enum { |
| 218 | lang_first_phase_enum, |
| 219 | lang_allocating_phase_enum, |
| 220 | lang_final_phase_enum |
| 221 | } lang_phase_type; |
| 222 | |
| 223 | extern boolean had_script; |
| 224 | extern boolean force_make_executable; |
| 225 | |
| 226 | /* Non-zero if we are processing a --defsym from the command line. */ |
| 227 | extern int parsing_defsym; |
| 228 | |
| 229 | extern int yyparse PARAMS ((void)); |
| 230 | |
| 231 | extern void add_cref PARAMS ((const char *, bfd *, asection *, bfd_vma)); |
| 232 | extern void output_cref PARAMS ((FILE *)); |
| 233 | extern void check_nocrossrefs PARAMS ((void)); |
| 234 | |
| 235 | extern void ld_abort PARAMS ((const char *, int, const char *)) |
| 236 | ATTRIBUTE_NORETURN; |
| 237 | |
| 238 | /* If gcc >= 2.6, we can give a function name, too. */ |
| 239 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) |
| 240 | #define __PRETTY_FUNCTION__ ((char*) NULL) |
| 241 | #endif |
| 242 | |
| 243 | #undef abort |
| 244 | #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) |
| 245 | |
| 246 | #endif |