| 1 | /* ld.h -- general linker header file |
| 2 | Copyright (C) 1991, 93, 94, 95, 1996 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 the Free |
| 18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 19 | 02111-1307, USA. */ |
| 20 | |
| 21 | #ifndef LD_H |
| 22 | #define LD_H |
| 23 | |
| 24 | /* Look in this environment name for the linker to pretend to be */ |
| 25 | #define EMULATION_ENVIRON "LDEMULATION" |
| 26 | /* If in there look for the strings: */ |
| 27 | |
| 28 | /* Look in this variable for a target format */ |
| 29 | #define TARGET_ENVIRON "GNUTARGET" |
| 30 | |
| 31 | /* Input sections which are put in a section of this name are actually |
| 32 | discarded. */ |
| 33 | #define DISCARD_SECTION_NAME "/DISCARD/" |
| 34 | |
| 35 | /* Extra information we hold on sections */ |
| 36 | typedef struct user_section_struct |
| 37 | { |
| 38 | /* Pointer to the section where this data will go */ |
| 39 | struct lang_input_statement_struct *file; |
| 40 | } section_userdata_type; |
| 41 | |
| 42 | |
| 43 | #define get_userdata(x) ((x)->userdata) |
| 44 | |
| 45 | #define BYTE_SIZE (1) |
| 46 | #define SHORT_SIZE (2) |
| 47 | #define LONG_SIZE (4) |
| 48 | #define QUAD_SIZE (8) |
| 49 | |
| 50 | /* ALIGN macro changed to ALIGN_N to avoid */ |
| 51 | /* conflict in /usr/include/machine/machparam.h */ |
| 52 | /* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int, |
| 53 | you must coerce boundary to the same type as THIS. |
| 54 | ??? Is there a portable way to avoid this. */ |
| 55 | #define ALIGN_N(this, boundary) \ |
| 56 | ((( (this) + ((boundary) -1)) & (~((boundary)-1)))) |
| 57 | |
| 58 | typedef struct |
| 59 | { |
| 60 | /* 1 => assign space to common symbols even if `relocatable_output'. */ |
| 61 | boolean force_common_definition; |
| 62 | boolean relax; |
| 63 | |
| 64 | /* Name of runtime interpreter to invoke. */ |
| 65 | char *interpreter; |
| 66 | |
| 67 | /* Name to give runtime libary from the -soname argument. */ |
| 68 | char *soname; |
| 69 | |
| 70 | /* Runtime library search path from the -rpath argument. */ |
| 71 | char *rpath; |
| 72 | |
| 73 | /* Link time runtime library search path from the -rpath-link |
| 74 | argument. */ |
| 75 | char *rpath_link; |
| 76 | |
| 77 | /* Big or little endian as set on command line. */ |
| 78 | enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian; |
| 79 | |
| 80 | /* If true, export all symbols in the dynamic symbol table of an ELF |
| 81 | executable. */ |
| 82 | boolean export_dynamic; |
| 83 | |
| 84 | /* If true, build MIPS embedded PIC relocation tables in the output |
| 85 | file. */ |
| 86 | boolean embedded_relocs; |
| 87 | |
| 88 | /* If true, force generation of a file with a .exe file. */ |
| 89 | boolean force_exe_suffix; |
| 90 | |
| 91 | /* If true, generate a cross reference report. */ |
| 92 | boolean cref; |
| 93 | } args_type; |
| 94 | |
| 95 | extern args_type command_line; |
| 96 | |
| 97 | typedef int token_code_type; |
| 98 | |
| 99 | typedef struct |
| 100 | { |
| 101 | bfd_size_type specified_data_size; |
| 102 | boolean magic_demand_paged; |
| 103 | boolean make_executable; |
| 104 | |
| 105 | /* If true, doing a dynamic link. */ |
| 106 | boolean dynamic_link; |
| 107 | |
| 108 | /* If true, build constructors. */ |
| 109 | boolean build_constructors; |
| 110 | |
| 111 | /* If true, warn about any constructors. */ |
| 112 | boolean warn_constructors; |
| 113 | |
| 114 | /* If true, warn about merging common symbols with others. */ |
| 115 | boolean warn_common; |
| 116 | |
| 117 | /* If true, only warn once about a particular undefined symbol. */ |
| 118 | boolean warn_once; |
| 119 | |
| 120 | /* If true, warn if multiple global-pointers are needed (Alpha |
| 121 | only). */ |
| 122 | boolean warn_multiple_gp; |
| 123 | |
| 124 | boolean sort_common; |
| 125 | |
| 126 | boolean text_read_only; |
| 127 | |
| 128 | char *map_filename; |
| 129 | FILE *map_file; |
| 130 | |
| 131 | boolean stats; |
| 132 | |
| 133 | int split_by_reloc; |
| 134 | boolean split_by_file; |
| 135 | } ld_config_type; |
| 136 | |
| 137 | extern ld_config_type config; |
| 138 | |
| 139 | typedef enum |
| 140 | { |
| 141 | lang_first_phase_enum, |
| 142 | lang_allocating_phase_enum, |
| 143 | lang_final_phase_enum |
| 144 | } lang_phase_type; |
| 145 | |
| 146 | extern boolean had_script; |
| 147 | extern boolean force_make_executable; |
| 148 | |
| 149 | /* Non-zero if we are processing a --defsym from the command line. */ |
| 150 | extern int parsing_defsym; |
| 151 | |
| 152 | extern int yyparse PARAMS ((void)); |
| 153 | |
| 154 | extern void add_cref PARAMS ((const char *, bfd *, asection *, bfd_vma)); |
| 155 | extern void output_cref PARAMS ((FILE *)); |
| 156 | |
| 157 | #endif |