ld/ld.h

   1 /* ld.h -- general linker header file
   2    Copyright (C) 1991, 93, 94, 95, 96, 1997, 1998 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 #ifdef ENABLE_NLS
  25 #include <libintl.h>
  26 #define _(String) gettext (String)
  27 #ifdef gettext_noop
  28 #define N_(String) gettext_noop (String)
  29 #else
  30 #define N_(String) (String)
  31 #endif
  32 #else
  33 /* Stubs that do something close enough.  */
  34 #define textdomain(String) (String)
  35 #define gettext(String) (String)
  36 #define dgettext(Domain,Message) (Message)
  37 #define dcgettext(Domain,Message,Type) (Message)
  38 #define bindtextdomain(Domain,Directory) (Domain)
  39 #define _(String) (String)
  40 #define N_(String) (String)
  41 /* In this case we don't care about the value.  */
  42 #ifndef LC_MESSAGES
  43 #define LC_MESSAGES 0
  44 #endif
  45 #endif
  46
  47 /* Look in this environment name for the linker to pretend to be */
  48 #define EMULATION_ENVIRON "LDEMULATION"
  49 /* If in there look for the strings: */
  50
  51 /* Look in this variable for a target format */
  52 #define TARGET_ENVIRON "GNUTARGET"
  53
  54 /* Input sections which are put in a section of this name are actually
  55    discarded.  */
  56 #define DISCARD_SECTION_NAME "/DISCARD/"
  57
  58 /* Extra information we hold on sections */
  59 typedef struct  user_section_struct
  60 {
  61   /* Pointer to the section where this data will go */
  62   struct lang_input_statement_struct *file;
  63 } section_userdata_type;
  64
  65
  66 #define get_userdata(x) ((x)->userdata)
  67
  68 #define BYTE_SIZE       (1)
  69 #define SHORT_SIZE      (2)
  70 #define LONG_SIZE       (4)
  71 #define QUAD_SIZE       (8)
  72
  73 /* ALIGN macro changed to ALIGN_N to avoid      */
  74 /* conflict in /usr/include/machine/machparam.h */
  75 /* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int,
  76    you must coerce boundary to the same type as THIS.
  77    ??? Is there a portable way to avoid this.  */
  78 #define ALIGN_N(this, boundary) \
  79   ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
  80
  81 typedef struct
  82 {
  83   /* 1 => assign space to common symbols even if `relocatable_output'.  */
  84   boolean force_common_definition;
  85   boolean relax;
  86
  87   /* Name of runtime interpreter to invoke.  */
  88   char *interpreter;
  89
  90   /* Name to give runtime libary from the -soname argument.  */
  91   char *soname;
  92
  93   /* Runtime library search path from the -rpath argument.  */
  94   char *rpath;
  95
  96   /* Link time runtime library search path from the -rpath-link
  97      argument.  */
  98   char *rpath_link;
  99
 100   /* Big or little endian as set on command line.  */
 101   enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian;
 102
 103   /* If true, export all symbols in the dynamic symbol table of an ELF
 104      executable.  */
 105   boolean export_dynamic;
 106
 107   /* If true, build MIPS embedded PIC relocation tables in the output
 108      file.  */
 109   boolean embedded_relocs;
 110
 111   /* If true, force generation of a file with a .exe file. */
 112   boolean force_exe_suffix;
 113
 114   /* If true, generate a cross reference report.  */
 115   boolean cref;
 116
 117   /* If true (which is the default), warn about mismatched input
 118      files.  */
 119   boolean warn_mismatch;
 120
 121   /* Name of shared object whose symbol table should be filtered with
 122      this shared object.  From the --filter option.  */
 123   char *filter_shlib;
 124
 125   /* Name of shared object for whose symbol table this shared object
 126      is an auxiliary filter.  From the --auxiliary option.  */
 127   char **auxiliary_filters;
 128 } args_type;
 129
 130 extern args_type command_line;
 131
 132 typedef int token_code_type;
 133
 134 typedef struct
 135 {
 136   bfd_size_type specified_data_size;
 137   boolean magic_demand_paged;
 138   boolean make_executable;
 139
 140   /* If true, doing a dynamic link.  */
 141   boolean dynamic_link;
 142
 143   /* If true, build constructors.  */
 144   boolean build_constructors;
 145
 146   /* If true, warn about any constructors.  */
 147   boolean warn_constructors;
 148
 149   /* If true, warn about merging common symbols with others.  */
 150   boolean warn_common;
 151
 152   /* If true, only warn once about a particular undefined symbol.  */
 153   boolean warn_once;
 154
 155   /* If true, warn if multiple global-pointers are needed (Alpha
 156      only).  */
 157   boolean warn_multiple_gp;
 158
 159   /* If true, warn if the starting address of an output section
 160      changes due to the alignment of an input section.  */
 161   boolean warn_section_align;
 162
 163   boolean sort_common;
 164
 165   boolean text_read_only;
 166
 167   char *map_filename;
 168   FILE *map_file;
 169
 170   boolean stats;
 171
 172   int split_by_reloc;
 173   boolean split_by_file;
 174 } ld_config_type;
 175
 176 extern ld_config_type config;
 177
 178 typedef enum
 179 {
 180   lang_first_phase_enum,
 181   lang_allocating_phase_enum,
 182   lang_final_phase_enum
 183 } lang_phase_type;
 184
 185 extern boolean had_script;
 186 extern boolean force_make_executable;
 187
 188 /* Non-zero if we are processing a --defsym from the command line.  */
 189 extern int parsing_defsym;
 190
 191 extern int yyparse PARAMS ((void));
 192
 193 extern void add_cref PARAMS ((const char *, bfd *, asection *, bfd_vma));
 194 extern void output_cref PARAMS ((FILE *));
 195 extern void check_nocrossrefs PARAMS ((void));
 196
 197 #endif