X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fld.h;h=e0ca3e83f0c8bf60c646b0838964de39c6c73687;hb=7e993ebf2343a5b39d6d1df29fdebc2818064ae5;hp=fb2b62a908b50a1710e4a51290b831d9e8ed3610;hpb=16423a4a99210a59fc20ea069a5305ccee9414a5;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/ld.h b/ld/ld.h index fb2b62a908..e0ca3e83f0 100644 --- a/ld/ld.h +++ b/ld/ld.h @@ -1,132 +1,302 @@ -/* ld.h - +/* ld.h -- general linker header file + Copyright (C) 1991-2015 Free Software Foundation, Inc. - Copyright (C) 1991 Free Software Foundation, Inc. + This file is part of the GNU Binutils. - This file is part of GLD, the Gnu Linker. - - 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ - - -#define flag_is_not_at_end(x) ((x) & BSF_NOT_AT_END) -#define flag_is_ordinary_local(x) (((x) & (BSF_LOCAL))&!((x) & (BSF_DEBUGGING))) -#define flag_is_debugger(x) ((x) & BSF_DEBUGGING) -#define flag_is_undefined_or_global(x) ((x) & (BSF_UNDEFINED | BSF_GLOBAL)) -#define flag_is_defined(x) (!((x) & (BSF_UNDEFINED))) -#define flag_is_global_or_common(x) ((x) & (BSF_GLOBAL | BSF_FORT_COMM)) -#define flag_is_undefined_or_global_or_common(x) ((x) & (BSF_UNDEFINED | BSF_GLOBAL | BSF_FORT_COMM)) -#define flag_is_common(x) ((x) & BSF_FORT_COMM) -#define flag_is_global(x) ((x) & (BSF_GLOBAL)) -#define flag_is_undefined(x) ((x) & BSF_UNDEFINED) -#define flag_set(x,y) (x = y) -#define flag_is_fort_comm(x) ((x) & BSF_FORT_COMM) -#define flag_is_absolute(x) ((x) & BSF_ABSOLUTE) -/* 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) -#define as_output_section_statement(x) ((x)->otheruserdata) - -#if 0 -/* - * Structure for communication between do_file_warnings and it's - * helper routines. Will in practice be an array of three of these: - * 0) Current line, 1) Next line, 2) Source file info. - */ -struct line_debug_entry -{ - int line; - char *filename; - struct nlist *sym; -}; + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -#endif +#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 -/* Which symbols should be stripped (omitted from the output): - none, all, or debugger symbols. */ -enum { STRIP_NONE, STRIP_ALL, STRIP_DEBUGGER } strip_symbols; +#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 +#ifdef ENABLE_NLS +# include +# 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 +/* 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" -/* Which local symbols should be omitted: - none, all, or those starting with L. - This is irrelevant if STRIP_NONE. */ -enum { DISCARD_NONE, DISCARD_ALL, DISCARD_L } discard_locals; +/* 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; +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, + by_none, by_init_priority +} sort_type; +extern sort_type sort_section; -#define ALIGN(this, boundary) ((( (this) + ((boundary) -1)) & (~((boundary)-1)))) -#if 0 -#define FOREACHGLOBALSYMBOL(x) ldsym_type *x; for (x = symbol_head; x; x=x->next) +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 *next; + struct wildcard_spec spec; +}; +#define BYTE_SIZE (1) +#define SHORT_SIZE (2) +#define LONG_SIZE (4) +#define QUAD_SIZE (8) +enum endian_enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE }; -#define SECTIONLOOP(abfd, ptr) \ - asection *ptr; for(ptr = abfd->sections; ptr;ptr=ptr->next) +enum symbolic_enum + { + symbolic_unset = 0, + symbolic, + symbolic_functions, + }; +enum dynamic_list_enum + { + dynamic_list_unset = 0, + dynamic_list_data, + dynamic_list + }; -#endif typedef struct { - /* 1 => assign space to common symbols even if `relocatable_output'. */ - boolean force_common_definition; + bfd_boolean force_common_definition; + + /* 1 => do not assign addresses to common symbols. */ + bfd_boolean inhibit_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; + + /* If TRUE we'll just print the default output on stdout. */ + bfd_boolean print_output_format; + + /* Big or little endian as set on command line. */ + enum endian_enum endian; + + /* -Bsymbolic and -Bsymbolic-functions, as set on command line. */ + enum symbolic_enum symbolic; + + /* --dynamic-list, --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo + and --dynamic-list FILE, as set on command line. */ + enum dynamic_list_enum dynamic_list; + + /* 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; + + /* 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; + + /* Default linker script. */ + char *default_script; } args_type; +extern args_type command_line; + typedef int token_code_type; -typedef struct -{ - unsigned int specified_data_size; - boolean magic_demand_paged; - boolean make_executable; - /* 1 => write relocation into output file so can re-input it later. */ - boolean relocateable_output; +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. */ + bfd_boolean has_shared; - /* Will we build contstructors, or leave alone ? */ - boolean build_constructors; - /* 1 => write relocation such that a UNIX linker can understand it. - This is used mainly to finish of sets that were built. */ - boolean unix_relocate; + /* If TRUE, build constructors. */ + bfd_boolean build_constructors; + /* If TRUE, warn about any constructors. */ + bfd_boolean warn_constructors; -} ld_config_type; -#define set_asymbol_chain(x,y) ((x)->udata = (void *)y) -#define get_asymbol_chain(x) ((asymbol **)((x)->udata)) -#define get_loader_symbol(x) ((loader_global_asymbol *)((x)->udata)) -#define set_loader_symbol(x,y) ((x)->udata = (void *)y) + /* 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; + sort_order sort_common; -typedef enum { - lang_first_phase_enum, - lang_allocating_phase_enum, - lang_final_phase_enum } lang_phase_type; + bfd_boolean text_read_only; + + bfd_boolean stats; + + /* If set, orphan input sections will be mapped to separate output + 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; + + bfd_size_type specified_data_size; + + /* The size of the hash table to use. */ + unsigned long 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; + +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