X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=ld%2Fld.h;h=71fd7812677b177b9a9065317c61d2cae18d3e2d;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=e13e28082b910e202e949d0e253e23dc17b48949;hpb=7ce691aec4ef1b3ee705799d7166bc949815440c;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/ld.h b/ld/ld.h index e13e28082b..71fd781267 100644 --- a/ld/ld.h +++ b/ld/ld.h @@ -1,28 +1,45 @@ /* ld.h -- general linker header file - Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 - 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, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, 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 #ifdef HAVE_LOCALE_H +#endif +#ifndef SEEK_CUR +#define SEEK_CUR 1 +#endif +#ifndef SEEK_END +#define SEEK_END 2 +#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 #endif @@ -38,14 +55,18 @@ # 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: */ @@ -57,52 +78,101 @@ 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; -/* A wildcard specification. This is only used in ldgram.y, but it - winds up in ldgram.h, so we need to define it outside. */ +typedef enum {sort_none, sort_ascending, sort_descending} sort_order; + +/* A wildcard specification. */ -struct wildcard_spec { +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 +{ const char *name; struct name_list *exclude_name_list; - boolean sorted; + sort_type sorted; + struct flag_info *section_flag_list; }; -/* Extra information we hold on sections */ -typedef struct user_section_struct { - /* Pointer to the section where this data will go */ - struct lang_input_statement_struct *file; -} section_userdata_type; - -#define get_userdata(x) ((x)->userdata) +struct wildcard_list +{ + struct wildcard_list *next; + struct wildcard_spec spec; +}; #define BYTE_SIZE (1) #define SHORT_SIZE (2) #define LONG_SIZE (4) #define QUAD_SIZE (8) -/* ALIGN macro changed to ALIGN_N to avoid */ -/* conflict in /usr/include/machine/machparam.h */ -/* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int, - you must coerce boundary to the same type as THIS. - ??? Is there a portable way to avoid this. */ -#define ALIGN_N(this, boundary) \ - ((( (this) + ((boundary) -1)) & (~((boundary)-1)))) +enum endian_enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE }; -typedef struct { +typedef struct +{ /* 1 => assign space to common symbols even if `relocatable_output'. */ - boolean force_common_definition; - boolean relax; + bfd_boolean force_common_definition; + + /* 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; + + /* 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 libary from the -soname argument. */ + /* Name to give runtime library from the -soname argument. */ char *soname; /* Runtime library search path from the -rpath argument. */ @@ -112,30 +182,6 @@ typedef struct { argument. */ char *rpath_link; - /* Big or little endian as set on command line. */ - enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian; - - /* If true, export all symbols in the dynamic symbol table of an ELF - executable. */ - boolean export_dynamic; - - /* If true, build MIPS embedded PIC relocation tables in the output - file. */ - boolean embedded_relocs; - - /* If true, force generation of a file with a .exe file. */ - boolean force_exe_suffix; - - /* If true, generate a cross reference report. */ - boolean cref; - - /* If true (which is the default), warn about mismatched input - files. */ - boolean warn_mismatch; - - /* Remove unreferenced sections? */ - boolean gc_sections; - /* Name of shared object whose symbol table should be filtered with this shared object. From the --filter option. */ char *filter_shlib; @@ -148,96 +194,129 @@ typedef struct { .exports sections. */ char *version_exports_section; - /* If true (the default) check section addresses, once compute, - fpor overlaps. */ - boolean check_section_addresses; - + /* 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; - boolean magic_demand_paged; - boolean make_executable; +/* 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, - /* If true, doing a dynamic link. */ - boolean dynamic_link; + /* Discard any orphan sections as though they were assign to the section + /DISCARD/. */ + orphan_handling_discard, - /* If true, -shared is supported. */ + /* 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, -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. */ - boolean has_shared; + bfd_boolean has_shared; + + /* If TRUE, build constructors. */ + bfd_boolean build_constructors; - /* If true, build constructors. */ - boolean build_constructors; + /* If TRUE, warn about any constructors. */ + bfd_boolean warn_constructors; - /* If true, warn about any constructors. */ - boolean warn_constructors; + /* If TRUE, warn about merging common symbols with others. */ + bfd_boolean warn_common; - /* If true, warn about merging common symbols with others. */ - boolean warn_common; + /* If TRUE, only warn once about a particular undefined symbol. */ + bfd_boolean warn_once; - /* If true, only warn once about a particular undefined symbol. */ - 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 + /* If TRUE, warn if multiple global-pointers are needed (Alpha only). */ - boolean warn_multiple_gp; + bfd_boolean warn_multiple_gp; - /* If true, warn if the starting address of an output section + /* If TRUE, warn if the starting address of an output section changes due to the alignment of an input section. */ - boolean warn_section_align; + bfd_boolean warn_section_align; - /* If true, warning messages are fatal */ - boolean fatal_warnings; + /* If TRUE, warning messages are fatal */ + bfd_boolean fatal_warnings; - boolean sort_common; + sort_order sort_common; - boolean text_read_only; + bfd_boolean text_read_only; - char *map_filename; - FILE *map_file; - - boolean stats; + bfd_boolean stats; /* If set, orphan input sections will be mapped to separate output sections. */ - boolean unique_orphan_sections; + bfd_boolean unique_orphan_sections; + + /* 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; -} ld_config_type; -extern ld_config_type config; + /* The size of the hash table to use. */ + unsigned long hash_table_size; -typedef enum { - lang_first_phase_enum, - lang_allocating_phase_enum, - lang_final_phase_enum -} lang_phase_type; + /* The maximum page size for ELF. */ + bfd_vma maxpagesize; -extern boolean had_script; -extern boolean force_make_executable; + /* The common page size for ELF. */ + bfd_vma commonpagesize; -/* Non-zero if we are processing a --defsym from the command line. */ -extern int parsing_defsym; + /* If set, print discarded sections in map file output. */ + bfd_boolean print_map_discarded; +} ld_config_type; -extern int yyparse PARAMS ((void)); +extern ld_config_type config; -extern void add_cref PARAMS ((const char *, bfd *, asection *, bfd_vma)); -extern void output_cref PARAMS ((FILE *)); -extern void check_nocrossrefs PARAMS ((void)); +extern FILE * saved_script_handle; +extern bfd_boolean force_make_executable; -extern void ld_abort PARAMS ((const char *, int, const char *)) - ATTRIBUTE_NORETURN; +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__ ((char*) NULL) +#define __PRETTY_FUNCTION__ NULL #endif #undef abort