X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=ld%2Fld.h;h=71fd7812677b177b9a9065317c61d2cae18d3e2d;hb=3312f67c0957196e41db149343d04ee7b30cdc65;hp=174e5b9f20ac2641d1a5c1363d12e6356bfa533f;hpb=24718e3ba575439155f233fc593a9ebd6d33f3c5;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/ld.h b/ld/ld.h index 174e5b9f20..71fd781267 100644 --- a/ld/ld.h +++ b/ld/ld.h @@ -1,24 +1,22 @@ /* ld.h -- general linker header file - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004, 2005 - Free Software Foundation, Inc. + Copyright (C) 1991-2020 Free Software Foundation, Inc. - This file is part of GLD, the Gnu Linker. + This file is part of the GNU Binutils. - GLD is free software; you can redistribute it and/or modify + This program 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. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. - GLD is distributed in the hope that it will be useful, + This program 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. */ + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ #ifndef LD_H #define LD_H @@ -32,24 +30,6 @@ #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 -# 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 @@ -75,14 +55,18 @@ void *alloca (); # 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 ngettext(Msgid1, Msgid2, n) \ + (n == 1 ? Msgid1 : Msgid2) +# define dngettext(Domainname, Msgid1, Msgid2, n) \ + (n == 1 ? Msgid1 : Msgid2) +# define dcngettext(Domainname, Msgid1, Msgid2, n, Category) \ + (n == 1 ? Msgid1 : Msgid2) +# define textdomain(Domainname) do {} while (0) +# define bindtextdomain(Domainname, Dirname) do {} while (0) # 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: */ @@ -94,77 +78,52 @@ void *alloca (); discarded. */ #define DISCARD_SECTION_NAME "/DISCARD/" -/* A file name list */ -typedef struct name_list { +/* A file name list. */ +typedef struct name_list +{ const char *name; struct name_list *next; } name_list; +typedef enum {sort_none, sort_ascending, sort_descending} sort_order; + /* A wildcard specification. */ -typedef enum { - none, by_name, by_alignment, by_name_alignment, by_alignment_name +typedef enum +{ + none, by_name, by_alignment, by_name_alignment, by_alignment_name, + by_none, by_init_priority } sort_type; extern sort_type sort_section; -struct wildcard_spec { +struct wildcard_spec +{ const char *name; struct name_list *exclude_name_list; sort_type sorted; + struct flag_info *section_flag_list; }; -struct wildcard_list { +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 { +enum endian_enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE }; + +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; @@ -179,6 +138,50 @@ typedef struct { files. */ bfd_boolean warn_mismatch; + /* Warn on attempting to open an incompatible library during a library + search. */ + bfd_boolean warn_search_mismatch; + + /* If non-zero check section addresses, once computed, + for overlaps. Relocatable links only check when this is > 0. */ + signed char 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; + + /* Name of the import library to generate. */ + char *out_implib_filename; + + /* If TRUE we'll just print the default output on stdout. */ + bfd_boolean print_output_format; + + /* If set, display the target memory usage (per memory region). */ + bfd_boolean print_memory_usage; + + /* Should we force section groups to be resolved? Controlled with + --force-group-allocation on the command line or FORCE_GROUP_ALLOCATION + in the linker script. */ + bfd_boolean force_group_allocation; + + /* Big or little endian as set on command line. */ + enum endian_enum endian; + + /* Name of runtime interpreter to invoke. */ + char *interpreter; + + /* Name to give runtime library 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; + /* Name of shared object whose symbol table should be filtered with this shared object. From the --filter option. */ char *filter_shlib; @@ -191,34 +194,39 @@ typedef struct { .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; - - /* If TRUE reduce memory overheads, at the expense of speed. - This will cause map file generation to use an O(N^2) algorithm. */ - bfd_boolean reduce_memory_overheads; - + /* Default linker script. */ + char *default_script; } args_type; extern args_type command_line; typedef int token_code_type; -typedef struct { - bfd_size_type specified_data_size; +/* Different ways we can handle orphan sections. */ + +enum orphan_handling_enum +{ + /* The classic strategy, find a suitable section to place the orphan + into. */ + orphan_handling_place = 0, + + /* Discard any orphan sections as though they were assign to the section + /DISCARD/. */ + orphan_handling_discard, + + /* Find somewhere to place the orphan section, as with + ORPHAN_HANDLING_PLACE, but also issue a warning. */ + orphan_handling_warn, + + /* Issue a fatal error if any orphan sections are found. */ + orphan_handling_error, +}; + +typedef struct +{ 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 @@ -237,6 +245,9 @@ typedef struct { /* If TRUE, only warn once about a particular undefined symbol. */ bfd_boolean warn_once; + /* How should we deal with orphan sections. */ + enum orphan_handling_enum orphan_handling; + /* If TRUE, warn if multiple global-pointers are needed (Alpha only). */ bfd_boolean warn_multiple_gp; @@ -248,34 +259,47 @@ typedef struct { /* If TRUE, warning messages are fatal */ bfd_boolean fatal_warnings; - bfd_boolean sort_common; + sort_order 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; + /* If set, numbers and absolute symbols are simply treated as + numbers everywhere. */ + bfd_boolean sane_expr; + + /* If set, code and non-code sections should never be in one segment. */ + bfd_boolean separate_code; + + /* The rpath separation character. Usually ':'. */ + char rpath_separator; + + char *map_filename; + FILE *map_file; + + unsigned int split_by_reloc; + bfd_size_type split_by_file; + /* The size of the hash table to use. */ - bfd_size_type hash_table_size; + unsigned long hash_table_size; /* The maximum page size for ELF. */ bfd_vma maxpagesize; /* The common page size for ELF. */ bfd_vma commonpagesize; + + /* If set, print discarded sections in map file output. */ + bfd_boolean print_map_discarded; } ld_config_type; extern ld_config_type config; @@ -283,11 +307,9 @@ 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;