/* ldlang.h - linker command language support
- Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1991-2023 Free Software Foundation, Inc.
This file is part of the GNU Binutils.
#define DEFAULT_MEMORY_REGION "*default*"
+#define SECTION_NAME_MAP_LENGTH (16)
+
typedef enum
{
lang_input_file_is_l_enum,
{
lang_memory_region_name name_list;
struct memory_region_struct *next;
+ union etree_union *origin_exp;
bfd_vma origin;
bfd_size_type length;
+ union etree_union *length_exp;
bfd_vma current;
union lang_statement_union *last_os;
flagword flags;
flagword not_flags;
- bfd_boolean had_full_message;
+ bool had_full_message;
} lang_memory_region_type;
enum statement_enum
{
- lang_output_section_statement_enum,
- lang_assignment_statement_enum,
- lang_input_statement_enum,
lang_address_statement_enum,
- lang_wild_statement_enum,
- lang_input_section_enum,
- lang_object_symbols_statement_enum,
- lang_fill_statement_enum,
+ lang_assignment_statement_enum,
lang_data_statement_enum,
- lang_reloc_statement_enum,
- lang_target_statement_enum,
- lang_output_statement_enum,
- lang_padding_statement_enum,
+ lang_fill_statement_enum,
lang_group_statement_enum,
+ lang_input_section_enum,
+ lang_input_matcher_enum,
+ lang_input_statement_enum,
lang_insert_statement_enum,
- lang_constructors_statement_enum
+ lang_output_section_statement_enum,
+ lang_output_statement_enum,
+ lang_padding_statement_enum,
+ lang_reloc_statement_enum,
+ lang_target_statement_enum,
+ lang_wild_statement_enum,
+ lang_constructors_statement_enum,
+ lang_object_symbols_statement_enum
};
typedef struct lang_statement_header_struct
{
+ /* Next pointer for statement_list statement list. */
union lang_statement_union *next;
enum statement_enum type;
} lang_statement_header_type;
enum section_type
{
normal_section,
+ first_overlay_section,
overlay_section,
noload_section,
- noalloc_section
+ noalloc_section,
+ type_section,
+ readonly_section,
+ typed_readonly_section
};
/* This structure holds a list of program headers describing
{
struct lang_output_section_phdr_list *next;
const char *name;
- bfd_boolean used;
+ bool used;
} lang_output_section_phdr_list;
typedef struct lang_output_section_statement_struct
fill_type *fill;
union etree_union *addr_tree;
union etree_union *load_base;
+ union etree_union *section_alignment;
+ union etree_union *subsection_alignment;
/* If non-null, an expression to evaluate after setting the section's
size. The expression is evaluated inside REGION (above) with '.'
lang_output_section_phdr_list *phdrs;
+ /* Used by ELF SHF_LINK_ORDER sorting. */
+ void *data;
+
unsigned int block_value;
- int subsection_alignment; /* Alignment of components. */
- int section_alignment; /* Alignment of start of section. */
int constraint;
flagword flags;
enum section_type sectype;
+ etree_type *sectype_value;
unsigned int processed_vma : 1;
unsigned int processed_lma : 1;
unsigned int all_input_readonly : 1;
/* If this section should be ignored. */
- unsigned int ignored : 1;
- /* If there is a symbol relative to this section. */
- unsigned int section_relative_symbol : 1;
+ unsigned int ignored : 1;
+ /* If this section should update "dot". Prevents section being ignored. */
+ unsigned int update_dot : 1;
+ /* If this section is after assignment to _end. */
+ unsigned int after_end : 1;
+ /* If this section uses the alignment of its input sections. */
+ unsigned int align_lma_with_input : 1;
+ /* If script has duplicate output section statements of the same name
+ create duplicate output sections. */
+ unsigned int dup_output : 1;
} lang_output_section_statement_type;
-typedef struct
-{
- lang_statement_header_type header;
-} lang_common_statement_type;
-
-typedef struct
-{
- lang_statement_header_type header;
-} lang_object_symbols_statement_type;
-
typedef struct
{
lang_statement_header_type header;
bfd_vma output_offset;
} lang_reloc_statement_type;
-typedef struct lang_input_statement_struct
+struct lang_input_statement_flags
{
- lang_statement_header_type header;
- /* Name of this file. */
- const char *filename;
- /* Name to use for the symbol giving address of text start.
- Usually the same as filename, but for a file spec'd with
- -l this is the -l switch itself rather than the filename. */
- const char *local_sym_name;
-
- bfd *the_bfd;
-
- /* Point to the next file - whatever it is, wanders up and down
- archives */
- union lang_statement_union *next;
-
- /* Point to the next file, but skips archive contents. */
- union lang_statement_union *next_real_file;
-
- const char *target;
+ /* 1 means this file was specified in a -l option. */
+ unsigned int maybe_archive : 1;
- unsigned int is_archive : 1;
+ /* 1 means this file was specified in a -l:namespec option. */
+ unsigned int full_name_provided : 1;
/* 1 means search a set of directories for this file. */
- unsigned int search_dirs_flag : 1;
+ unsigned int search_dirs : 1;
- /* 1 means this was found in a search directory marked as sysrooted,
- if search_dirs_flag is false, otherwise, that it should be
- searched in ld_sysroot before any other location, as long as it
- starts with a slash. */
+ /* 1 means this was found when processing a script in the sysroot. */
unsigned int sysrooted : 1;
/* 1 means this is base file of incremental load.
Do not load this file's text or data.
Also default text_start to after this file's bss. */
- unsigned int just_syms_flag : 1;
+ unsigned int just_syms : 1;
/* Whether to search for this entry as a dynamic archive. */
unsigned int dynamic : 1;
- /* Whether DT_NEEDED tags should be added for dynamic libraries in
- DT_NEEDED tags from this entry. */
+ /* Set if a DT_NEEDED tag should be added not just for the dynamic library
+ explicitly given by this entry but also for any dynamic libraries in
+ this entry's needed list. */
unsigned int add_DT_NEEDED_for_dynamic : 1;
- /* Whether this entry should cause a DT_NEEDED tag only when
- satisfying references from regular files, or always. */
+ /* Set if this entry should cause a DT_NEEDED tag only when some
+ regular file references its symbols (ie. --as-needed is in effect). */
unsigned int add_DT_NEEDED_for_regular : 1;
/* Whether to include the entire contents of an archive. */
unsigned int whole_archive : 1;
+ /* Set when bfd opening is successful. */
unsigned int loaded : 1;
unsigned int real : 1;
+
+ /* Set if the file does not exist. */
+ unsigned int missing_file : 1;
+
+ /* Set if reloading an archive or --as-needed lib. */
+ unsigned int reload : 1;
+
+#if BFD_SUPPORTS_PLUGINS
+ /* Set if the file was claimed by a plugin. */
+ unsigned int claimed : 1;
+
+ /* Set if the file was claimed from an archive. */
+ unsigned int claim_archive : 1;
+
+ /* Set if added by the lto plugin add_input_file callback. */
+ unsigned int lto_output : 1;
+#endif /* BFD_SUPPORTS_PLUGINS */
+
+ /* Head of list of pushed flags. */
+ struct lang_input_statement_flags *pushed;
+};
+
+typedef struct lang_input_statement_struct
+{
+ lang_statement_header_type header;
+ /* Name of this file. */
+ const char *filename;
+ /* Name to use for the symbol giving address of text start.
+ Usually the same as filename, but for a file spec'd with
+ -l this is the -l switch itself rather than the filename. */
+ const char *local_sym_name;
+ /* Name to use when sorting. */
+ const char *sort_key;
+ /* Extra search path. Used to find a file relative to the
+ directory of the current linker script. */
+ const char *extra_search_path;
+
+ bfd *the_bfd;
+
+ ctf_archive_t *the_ctf;
+
+ struct flag_info *section_flag_list;
+
+ /* Next pointer for file_chain statement list. */
+ struct lang_input_statement_struct *next;
+
+ /* Next pointer for input_file_chain statement list. */
+ struct lang_input_statement_struct *next_real_file;
+
+ const char *target;
+
+ struct lang_input_statement_flags flags;
} lang_input_statement_type;
typedef struct
{
lang_statement_header_type header;
asection *section;
+ void *pattern;
} lang_input_section_type;
+typedef struct
+{
+ lang_statement_header_type header;
+ asection *section;
+ void *pattern;
+ lang_input_statement_type *input_stmt;
+} lang_input_matcher_type;
+
+struct map_symbol_def {
+ struct bfd_link_hash_entry *entry;
+ struct map_symbol_def *next;
+};
+
+/* For input sections, when writing a map file: head / tail of a linked
+ list of hash table entries for symbols defined in this section. */
+typedef struct input_section_userdata_struct
+{
+ struct map_symbol_def *map_symbol_def_head;
+ struct map_symbol_def **map_symbol_def_tail;
+ unsigned long map_symbol_def_count;
+} input_section_userdata_type;
+
+static inline bool
+bfd_input_just_syms (const bfd *abfd)
+{
+ lang_input_statement_type *is = bfd_usrdata (abfd);
+ return is != NULL && is->flags.just_syms;
+}
+
typedef struct lang_wild_statement_struct lang_wild_statement_type;
typedef void (*callback_t) (lang_wild_statement_type *, struct wildcard_list *,
callback_t callback,
void *data);
-typedef bfd_boolean (*lang_match_sec_type_func) (bfd *, const asection *,
- bfd *, const asection *);
+typedef bool (*lang_match_sec_type_func) (bfd *, const asection *,
+ bfd *, const asection *);
/* Binary search tree structure to efficiently sort sections by
name. */
typedef struct lang_section_bst
{
asection *section;
+ void *pattern;
struct lang_section_bst *left;
struct lang_section_bst *right;
} lang_section_bst_type;
{
lang_statement_header_type header;
const char *filename;
- bfd_boolean filenames_sorted;
+ bool filenames_sorted;
+ bool any_specs_sorted;
struct wildcard_list *section_list;
- bfd_boolean keep_sections;
+ bool keep_sections;
lang_statement_list_type children;
+ struct name_list *exclude_name_list;
+ lang_statement_list_type matching_sections;
- walk_wild_section_handler_t walk_wild_section_handler;
- struct wildcard_list *handler_data[4];
- lang_section_bst_type *tree;
+ lang_section_bst_type *tree, **rightmost;
+ struct flag_info *section_flag_list;
};
typedef struct lang_address_statement_struct
{
lang_statement_header_type header;
bfd_vma output_offset;
- size_t size;
+ bfd_size_type size;
asection *output_section;
fill_type *fill;
} lang_padding_statement_type;
{
lang_statement_header_type header;
const char *where;
- bfd_boolean is_before;
+ bool is_before;
} lang_insert_statement_type;
typedef union lang_statement_union
{
lang_statement_header_type header;
- lang_wild_statement_type wild_statement;
- lang_data_statement_type data_statement;
- lang_reloc_statement_type reloc_statement;
lang_address_statement_type address_statement;
- lang_output_section_statement_type output_section_statement;
lang_assignment_statement_type assignment_statement;
- lang_input_statement_type input_statement;
- lang_target_statement_type target_statement;
- lang_output_statement_type output_statement;
- lang_input_section_type input_section;
- lang_common_statement_type common_statement;
- lang_object_symbols_statement_type object_symbols_statement;
+ lang_data_statement_type data_statement;
lang_fill_statement_type fill_statement;
- lang_padding_statement_type padding_statement;
lang_group_statement_type group_statement;
+ lang_input_section_type input_section;
+ lang_input_matcher_type input_matcher;
+ lang_input_statement_type input_statement;
lang_insert_statement_type insert_statement;
+ lang_output_section_statement_type output_section_statement;
+ lang_output_statement_type output_statement;
+ lang_padding_statement_type padding_statement;
+ lang_reloc_statement_type reloc_statement;
+ lang_target_statement_type target_statement;
+ lang_wild_statement_type wild_statement;
} lang_statement_union_type;
/* This structure holds information about a program header, from the
struct lang_phdr *next;
const char *name;
unsigned long type;
- bfd_boolean filehdr;
- bfd_boolean phdrs;
+ bool filehdr;
+ bool phdrs;
etree_type *at;
etree_type *flags;
};
-extern struct lang_phdr *lang_phdr_list;
-
/* This structure is used to hold a list of sections which may not
cross reference each other. */
{
struct lang_nocrossrefs *next;
lang_nocrossref_type *list;
+ bool onlyfirst;
};
-extern struct lang_nocrossrefs *nocrossref_list;
-
/* This structure is used to hold a list of input section names which
will not match an output section in the linker script. */
const char *name;
};
-/* This structure records symbols for which we need to keep track of
- definedness for use in the DEFINED () test. */
-
-struct lang_definedness_hash_entry
-{
- struct bfd_hash_entry root;
- int iteration;
-};
-
/* Used by place_orphan to keep track of orphan sections and statements. */
struct orphan_save
lang_output_section_statement_type **os_tail;
};
+struct asneeded_minfo
+{
+ struct asneeded_minfo *next;
+ const char *soname;
+ bfd *ref;
+ const char *name;
+};
+
+extern struct lang_phdr *lang_phdr_list;
+extern struct lang_nocrossrefs *nocrossref_list;
extern const char *output_target;
extern lang_output_section_statement_type *abs_output_section;
-extern lang_statement_list_type lang_output_section_statement;
-extern bfd_boolean lang_has_input_file;
-extern etree_type *base;
+extern lang_statement_list_type lang_os_list;
+extern struct lang_input_statement_flags input_flags;
+extern bool lang_has_input_file;
+extern lang_statement_list_type statement_list;
extern lang_statement_list_type *stat_ptr;
-extern bfd_boolean delete_output_file_on_failure;
+extern bool delete_output_file_on_failure;
extern struct bfd_sym_chain entry_symbol;
extern const char *entry_section;
-extern bfd_boolean entry_from_cmdline;
+extern bool entry_from_cmdline;
extern lang_statement_list_type file_chain;
extern lang_statement_list_type input_file_chain;
+extern struct bfd_elf_dynamic_list **current_dynamic_list_p;
+
extern int lang_statement_iteration;
+extern struct asneeded_minfo **asneeded_list_tail;
+
+extern void (*output_bfd_hash_table_free_fn) (struct bfd_link_hash_table *);
extern void lang_init
(void);
extern void lang_finish
(void);
extern lang_memory_region_type * lang_memory_region_lookup
- (const char * const, bfd_boolean);
+ (const char * const, bool);
extern void lang_memory_region_alias
(const char *, const char *);
extern void lang_map
extern void lang_add_output
(const char *, int from_script);
extern lang_output_section_statement_type *lang_enter_output_section_statement
- (const char *output_section_statement_name,
- etree_type *address_exp,
- enum section_type sectype,
- etree_type *align,
- etree_type *subalign,
- etree_type *, int);
+ (const char *, etree_type *, enum section_type, etree_type *, etree_type *,
+ etree_type *, etree_type *, int, int);
extern void lang_final
(void);
extern void lang_relax_sections
- (bfd_boolean);
+ (bool);
extern void lang_process
(void);
extern void lang_section_start
(const char *, union etree_union *, const segment_type *);
extern void lang_add_entry
- (const char *, bfd_boolean);
+ (const char *, bool);
extern void lang_default_entry
(const char *);
extern void lang_add_target
(const char *);
extern void lang_add_wild
- (struct wildcard_spec *, struct wildcard_list *, bfd_boolean);
+ (struct wildcard_spec *, struct wildcard_list *, bool);
extern void lang_add_map
(const char *);
extern void lang_add_fill
extern void lang_startup
(const char *);
extern void lang_float
- (bfd_boolean);
+ (bool);
extern void lang_leave_output_section_statement
(fill_type *, const char *, lang_output_section_phdr_list *,
const char *);
-extern void lang_abs_symbol_at_end_of
- (const char *, const char *);
-extern void lang_abs_symbol_at_beginning_of
- (const char *, const char *);
-extern void lang_statement_append
- (lang_statement_list_type *, lang_statement_union_type *,
- lang_statement_union_type **);
extern void lang_for_each_input_file
(void (*dothis) (lang_input_statement_type *));
extern void lang_for_each_file
extern void lang_reset_memory_regions
(void);
extern void lang_do_assignments
+ (lang_phase_type);
+extern asection *section_for_dot
(void);
#define LANG_FOR_EACH_INPUT_STATEMENT(statement) \
lang_input_statement_type *statement; \
for (statement = (lang_input_statement_type *) file_chain.head; \
- statement != (lang_input_statement_type *) NULL; \
- statement = (lang_input_statement_type *) statement->next) \
+ statement != NULL; \
+ statement = statement->next)
#define lang_output_section_find(NAME) \
- lang_output_section_statement_lookup (NAME, 0, FALSE)
+ lang_output_section_statement_lookup (NAME, 0, 0)
extern void lang_process
(void);
extern void ldlang_add_file
(lang_input_statement_type *);
extern lang_output_section_statement_type *lang_output_section_find_by_flags
- (const asection *, lang_output_section_statement_type **,
+ (const asection *, flagword, lang_output_section_statement_type **,
lang_match_sec_type_func);
extern lang_output_section_statement_type *lang_insert_orphan
(asection *, const char *, int, lang_output_section_statement_type *,
(const char *, lang_input_file_enum_type, const char *);
extern void lang_add_keepsyms_file
(const char *);
+extern lang_output_section_statement_type *lang_output_section_get
+ (const asection *);
extern lang_output_section_statement_type *lang_output_section_statement_lookup
- (const char *, int, bfd_boolean);
+ (const char *, int, int);
extern lang_output_section_statement_type *next_matching_output_section_statement
(lang_output_section_statement_type *, int);
extern void ldlang_add_undef
+ (const char *const, bool);
+extern void ldlang_add_require_defined
(const char *const);
extern void lang_add_output_format
(const char *, const char *, const char *, int);
extern void pop_stat_ptr
(void);
extern void lang_add_data
- (int type, union etree_union *);
+ (int, union etree_union *);
+extern void lang_add_string
+ (const char *);
extern void lang_add_reloc
(bfd_reloc_code_real_type, reloc_howto_type *, asection *, const char *,
union etree_union *);
extern void lang_for_each_statement
(void (*) (lang_statement_union_type *));
+extern void lang_for_each_statement_worker
+ (void (*) (lang_statement_union_type *), lang_statement_union_type *);
extern void *stat_alloc
(size_t);
extern void strip_excluded_output_sections
(void);
+extern void lang_clear_os_map
+ (void);
extern void dprint_statement
(lang_statement_union_type *, int);
extern void lang_size_sections
- (bfd_boolean *, bfd_boolean);
+ (bool *, bool);
extern void one_lang_size_sections_pass
- (bfd_boolean *, bfd_boolean);
+ (bool *, bool);
extern void lang_add_insert
(const char *, int);
extern void lang_enter_group
extern void lang_leave_group
(void);
extern void lang_add_section
- (lang_statement_list_type *, asection *,
- lang_output_section_statement_type *);
+ (lang_statement_list_type *, asection *, struct wildcard_list *,
+ struct flag_info *, lang_output_section_statement_type *);
extern void lang_new_phdr
- (const char *, etree_type *, bfd_boolean, bfd_boolean, etree_type *,
+ (const char *, etree_type *, bool, bool, etree_type *,
etree_type *);
extern void lang_add_nocrossref
(lang_nocrossref_type *);
+extern void lang_add_nocrossref_to
+ (lang_nocrossref_type *);
extern void lang_enter_overlay
(etree_type *, etree_type *);
extern void lang_enter_overlay_section
(etree_type *, int, fill_type *, const char *,
lang_output_section_phdr_list *, const char *);
-extern struct bfd_elf_version_tree *lang_elf_version_info;
-
extern struct bfd_elf_version_expr *lang_new_vers_pattern
- (struct bfd_elf_version_expr *, const char *, const char *, bfd_boolean);
+ (struct bfd_elf_version_expr *, const char *, const char *, bool);
extern struct bfd_elf_version_tree *lang_new_vers_node
(struct bfd_elf_version_expr *, struct bfd_elf_version_expr *);
extern struct bfd_elf_version_deps *lang_add_vers_depend
(struct bfd_elf_version_deps *, const char *);
extern void lang_register_vers_node
(const char *, struct bfd_elf_version_tree *, struct bfd_elf_version_deps *);
-extern void lang_append_dynamic_list (struct bfd_elf_version_expr *);
+extern void lang_append_dynamic_list (struct bfd_elf_dynamic_list **,
+ struct bfd_elf_version_expr *);
extern void lang_append_dynamic_list_cpp_typeinfo (void);
extern void lang_append_dynamic_list_cpp_new (void);
extern void lang_add_unique
(const char *);
extern const char *lang_get_output_target
(void);
-extern void lang_track_definedness (const char *);
-extern int lang_symbol_definition_iteration (const char *);
-extern void lang_update_definedness
- (const char *, struct bfd_link_hash_entry *);
-
extern void add_excluded_libs (const char *);
-extern bfd_boolean load_symbols
+extern bool load_symbols
(lang_input_statement_type *, lang_statement_list_type *);
-extern bfd_boolean
+struct elf_sym_strtab;
+struct elf_strtab_hash;
+extern void ldlang_ctf_acquire_strings
+ (struct elf_strtab_hash *);
+extern void ldlang_ctf_new_dynsym
+ (int symidx, struct elf_internal_sym *);
+extern void ldlang_write_ctf_late
+ (void);
+extern bool
ldlang_override_segment_assignment
- (struct bfd_link_info *, bfd *, asection *, asection *, bfd_boolean);
+ (struct bfd_link_info *, bfd *, asection *, asection *, bool);
+
+extern void
+lang_ld_feature (char *);
+
+extern void
+lang_print_memory_usage (void);
+
+extern void
+lang_add_gc_name (const char *);
+
+extern bool
+print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr);
#endif
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