| /* ld.h -- general linker header file |
| Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 2001, 2002, 2003, 2004, 2005, 2006 |
| Free Software Foundation, Inc. |
| |
| This file is part of GLD, the Gnu Linker. |
| |
| GLD is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GLD is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GLD; see the file COPYING. If not, write to the Free |
| Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
| 02110-1301, USA. */ |
| |
| #ifndef LD_H |
| #define LD_H |
| |
| #ifdef HAVE_LOCALE_H |
| #endif |
| #ifndef SEEK_CUR |
| #define SEEK_CUR 1 |
| #endif |
| #ifndef SEEK_END |
| #define SEEK_END 2 |
| #endif |
| |
| #if defined(__GNUC__) && !defined(C_ALLOCA) |
| # undef alloca |
| # define alloca __builtin_alloca |
| #else |
| # if defined(HAVE_ALLOCA_H) && !defined(C_ALLOCA) |
| # include <alloca.h> |
| # else |
| # ifndef alloca /* predefined by HP cc +Olibcalls */ |
| # if !defined (__STDC__) && !defined (__hpux) |
| char *alloca (); |
| # else |
| void *alloca (); |
| # endif /* __STDC__, __hpux */ |
| # endif /* alloca */ |
| # endif /* HAVE_ALLOCA_H */ |
| #endif |
| |
| |
| #ifdef HAVE_LOCALE_H |
| # ifndef ENABLE_NLS |
| /* The Solaris version of locale.h always includes libintl.h. If we have |
| been configured with --disable-nls then ENABLE_NLS will not be defined |
| and the dummy definitions of bindtextdomain (et al) below will conflict |
| with the defintions in libintl.h. So we define these values to prevent |
| the bogus inclusion of libintl.h. */ |
| # define _LIBINTL_H |
| # define _LIBGETTEXT_H |
| # endif |
| # include <locale.h> |
| #endif |
| |
| #ifdef ENABLE_NLS |
| # include <libintl.h> |
| # define _(String) gettext (String) |
| # ifdef gettext_noop |
| # define N_(String) gettext_noop (String) |
| # else |
| # define N_(String) (String) |
| # endif |
| #else |
| # define gettext(Msgid) (Msgid) |
| # define dgettext(Domainname, Msgid) (Msgid) |
| # define dcgettext(Domainname, Msgid, Category) (Msgid) |
| # define textdomain(Domainname) while (0) /* nothing */ |
| # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ |
| # define _(String) (String) |
| # define N_(String) (String) |
| #endif |
| |
| #include "bin-bugs.h" |
| |
| /* Look in this environment name for the linker to pretend to be */ |
| #define EMULATION_ENVIRON "LDEMULATION" |
| /* If in there look for the strings: */ |
| |
| /* Look in this variable for a target format */ |
| #define TARGET_ENVIRON "GNUTARGET" |
| |
| /* Input sections which are put in a section of this name are actually |
| discarded. */ |
| #define DISCARD_SECTION_NAME "/DISCARD/" |
| |
| /* A file name list */ |
| typedef struct name_list { |
| const char *name; |
| struct name_list *next; |
| } |
| name_list; |
| |
| /* A wildcard specification. */ |
| |
| typedef enum { |
| none, by_name, by_alignment, by_name_alignment, by_alignment_name |
| } sort_type; |
| |
| extern sort_type sort_section; |
| |
| struct wildcard_spec { |
| const char *name; |
| struct name_list *exclude_name_list; |
| sort_type sorted; |
| }; |
| |
| struct wildcard_list { |
| struct wildcard_list *next; |
| struct wildcard_spec spec; |
| }; |
| |
| struct map_symbol_def { |
| struct bfd_link_hash_entry *entry; |
| struct map_symbol_def *next; |
| }; |
| |
| /* The initial part of fat_user_section_struct has to be idential with |
| lean_user_section_struct. */ |
| typedef struct fat_user_section_struct { |
| /* For input sections, when writing a map file: head / tail of a linked |
| list of hash table entries for symbols defined in this section. */ |
| struct map_symbol_def *map_symbol_def_head; |
| struct map_symbol_def **map_symbol_def_tail; |
| } fat_section_userdata_type; |
| |
| #define get_userdata(x) ((x)->userdata) |
| |
| #define BYTE_SIZE (1) |
| #define SHORT_SIZE (2) |
| #define LONG_SIZE (4) |
| #define QUAD_SIZE (8) |
| |
| typedef struct { |
| /* 1 => assign space to common symbols even if `relocatable_output'. */ |
| bfd_boolean force_common_definition; |
| |
| /* 1 => do not assign addresses to common symbols. */ |
| bfd_boolean inhibit_common_definition; |
| bfd_boolean relax; |
| |
| /* Name of runtime interpreter to invoke. */ |
| char *interpreter; |
| |
| /* Name to give runtime libary from the -soname argument. */ |
| char *soname; |
| |
| /* Runtime library search path from the -rpath argument. */ |
| char *rpath; |
| |
| /* Link time runtime library search path from the -rpath-link |
| argument. */ |
| char *rpath_link; |
| |
| /* Big or little endian as set on command line. */ |
| enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian; |
| |
| /* If TRUE, build MIPS embedded PIC relocation tables in the output |
| file. */ |
| bfd_boolean embedded_relocs; |
| |
| /* If TRUE, force generation of a file with a .exe file. */ |
| bfd_boolean force_exe_suffix; |
| |
| /* If TRUE, generate a cross reference report. */ |
| bfd_boolean cref; |
| |
| /* If TRUE (which is the default), warn about mismatched input |
| files. */ |
| bfd_boolean warn_mismatch; |
| |
| /* Name of shared object whose symbol table should be filtered with |
| this shared object. From the --filter option. */ |
| char *filter_shlib; |
| |
| /* Name of shared object for whose symbol table this shared object |
| is an auxiliary filter. From the --auxiliary option. */ |
| char **auxiliary_filters; |
| |
| /* A version symbol to be applied to the symbol names found in the |
| .exports sections. */ |
| char *version_exports_section; |
| |
| /* If TRUE (the default) check section addresses, once compute, |
| fpor overlaps. */ |
| bfd_boolean check_section_addresses; |
| |
| /* If TRUE allow the linking of input files in an unknown architecture |
| assuming that the user knows what they are doing. This was the old |
| behaviour of the linker. The new default behaviour is to reject such |
| input files. */ |
| bfd_boolean accept_unknown_input_arch; |
| } args_type; |
| |
| extern args_type command_line; |
| |
| typedef int token_code_type; |
| |
| typedef struct { |
| bfd_size_type specified_data_size; |
| bfd_boolean magic_demand_paged; |
| bfd_boolean make_executable; |
| |
| /* If TRUE, doing a dynamic link. */ |
| bfd_boolean dynamic_link; |
| |
| /* If TRUE, -shared is supported. */ |
| /* ??? A better way to do this is perhaps to define this in the |
| ld_emulation_xfer_struct since this is really a target dependent |
| parameter. */ |
| bfd_boolean has_shared; |
| |
| /* If TRUE, build constructors. */ |
| bfd_boolean build_constructors; |
| |
| /* If TRUE, warn about any constructors. */ |
| bfd_boolean warn_constructors; |
| |
| /* If TRUE, warn about merging common symbols with others. */ |
| bfd_boolean warn_common; |
| |
| /* If TRUE, only warn once about a particular undefined symbol. */ |
| bfd_boolean warn_once; |
| |
| /* If TRUE, warn if multiple global-pointers are needed (Alpha |
| only). */ |
| bfd_boolean warn_multiple_gp; |
| |
| /* If TRUE, warn if the starting address of an output section |
| changes due to the alignment of an input section. */ |
| bfd_boolean warn_section_align; |
| |
| /* If TRUE, warning messages are fatal */ |
| bfd_boolean fatal_warnings; |
| |
| bfd_boolean sort_common; |
| |
| bfd_boolean text_read_only; |
| |
| char *map_filename; |
| FILE *map_file; |
| |
| bfd_boolean stats; |
| |
| /* If set, orphan input sections will be mapped to separate output |
| sections. */ |
| bfd_boolean unique_orphan_sections; |
| |
| unsigned int split_by_reloc; |
| bfd_size_type split_by_file; |
| |
| /* If set, only search library directories explicitly selected |
| on the command line. */ |
| bfd_boolean only_cmd_line_lib_dirs; |
| |
| /* The size of the hash table to use. */ |
| bfd_size_type hash_table_size; |
| |
| /* The maximum page size for ELF. */ |
| bfd_vma maxpagesize; |
| |
| /* The common page size for ELF. */ |
| bfd_vma commonpagesize; |
| } ld_config_type; |
| |
| extern ld_config_type config; |
| |
| extern FILE * saved_script_handle; |
| extern bfd_boolean force_make_executable; |
| |
| /* Non-zero if we are processing a --defsym from the command line. */ |
| extern int parsing_defsym; |
| |
| extern int yyparse (void); |
| extern void add_cref (const char *, bfd *, asection *, bfd_vma); |
| extern bfd_boolean handle_asneeded_cref (bfd *, enum notice_asneeded_action); |
| extern void output_cref (FILE *); |
| extern void check_nocrossrefs (void); |
| extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; |
| |
| /* If gcc >= 2.6, we can give a function name, too. */ |
| #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) |
| #define __PRETTY_FUNCTION__ NULL |
| #endif |
| |
| #undef abort |
| #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) |
| |
| #endif |