/* ld.h -- general linker header file
- Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1991-2021 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
#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
# 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
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;
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;
/* Default linker script. */
char *default_script;
-
- /* 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;
-
- /* -Bsymbolic and -Bsymbolic-functions, as set on command line. */
- enum
- {
- symbolic_unset = 0,
- symbolic,
- symbolic_functions,
- } symbolic;
-
- /* --dynamic-list, --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo
- and --dynamic-list FILE, as set on command line. */
- enum
- {
- dynamic_list_unset = 0,
- dynamic_list_data,
- dynamic_list
- } dynamic_list;
} 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
/* 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;
/* 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;
- /* If set, only search library directories explicitly selected
- on the command line. */
- bfd_boolean only_cmd_line_lib_dirs;
+ char *map_filename;
+ FILE *map_file;
+
+ char *dependency_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;
+ /* If set, print discarded sections in map file output. */
+ bfd_boolean print_map_discarded;
- /* The common page size for ELF. */
- bfd_vma commonpagesize;
+ /* If set, emit the names and types of statically-linked variables
+ into the CTF. */
+ bfd_boolean ctf_variables;
+
+ /* If set, share only duplicated types in CTF, rather than sharing
+ all types that are not in conflict. */
+ bfd_boolean ctf_share_duplicated;
} 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);
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