- Copyright 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007
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
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. */
- {
- 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_data_statement_enum,
- lang_reloc_statement_enum,
- lang_target_statement_enum,
- lang_output_statement_enum,
- lang_padding_statement_enum,
- lang_group_statement_enum,
-
- lang_afile_asection_pair_statement_enum,
- lang_constructors_statement_enum
- } type;
+ {
+ 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_data_statement_enum,
+ lang_reloc_statement_enum,
+ lang_target_statement_enum,
+ lang_output_statement_enum,
+ lang_padding_statement_enum,
+ lang_group_statement_enum,
+
+ lang_afile_asection_pair_statement_enum,
+ lang_constructors_statement_enum
+ } type;
- flagword flags; /* Or together of all input sections */
- enum section_type sectype;
- struct memory_region_struct *region;
- struct memory_region_struct *lma_region;
- size_t block_value;
- fill_type fill;
+ lang_memory_region_type *region;
+ lang_memory_region_type *lma_region;
+ fill_type *fill;
+ union etree_union *addr_tree;
+ union etree_union *load_base;
- int subsection_alignment; /* alignment of components */
- int section_alignment; /* alignment of start of section */
+ /* If non-null, an expression to evaluate after setting the section's
+ size. The expression is evaluated inside REGION (above) with '.'
+ set to the end of the section. Used in the last overlay section
+ to move '.' past all the overlaid sections. */
+ union etree_union *update_dot_tree;
- struct lang_output_section_phdr_list *phdrs;
+ 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;
+ 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;
- /* 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. */
+ /* 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. */
- boolean search_dirs_flag;
+ unsigned int search_dirs_flag : 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. */
+ 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. */
/* 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 dynamic : 1;
+
+ /* Whether DT_NEEDED tags should be added for dynamic libraries in
+ DT_NEEDED tags from this entry. */
+ unsigned int add_needed : 1;
+
+ /* Whether this entry should cause a DT_NEEDED tag only when
+ satisfying references from regular files, or always. */
+ unsigned int as_needed : 1;
-typedef struct lang_wild_statement_struct
+typedef struct lang_wild_statement_struct lang_wild_statement_type;
+
+typedef void (*callback_t) (lang_wild_statement_type *, struct wildcard_list *,
+ asection *, lang_input_statement_type *, void *);
+
+typedef void (*walk_wild_section_handler_t) (lang_wild_statement_type *,
+ lang_input_statement_type *,
+ callback_t callback,
+ void *data);
+
+typedef bfd_boolean (*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;
+ struct lang_section_bst *left;
+ struct lang_section_bst *right;
+} lang_section_bst_type;
+
+struct lang_wild_statement_struct
lang_wild_statement_type wild_statement;
lang_data_statement_type data_statement;
lang_reloc_statement_type reloc_statement;
lang_wild_statement_type wild_statement;
lang_data_statement_type data_statement;
lang_reloc_statement_type reloc_statement;
+/* This structure is used to hold a list of input section names which
+ will not match an output section in the linker script. */
+
+struct unique_sections
+{
+ struct unique_sections *next;
+ 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 {
+ const char *name;
+ flagword flags;
+ lang_output_section_statement_type *os;
+ asection **section;
+ lang_statement_union_type **stmt;
+ lang_output_section_statement_type **os_tail;
+};
+
-
-extern void lang_init PARAMS ((void));
-extern struct memory_region_struct *lang_memory_region_lookup
- PARAMS ((const char *const));
-extern struct memory_region_struct *lang_memory_region_default
- PARAMS ((asection *));
-extern void lang_map PARAMS ((void));
-extern void lang_set_flags PARAMS ((lang_memory_region_type *, const char *,
- int));
-extern void lang_add_output PARAMS ((const char *, int from_script));
+extern lang_statement_list_type input_file_chain;
+
+extern int lang_statement_iteration;
+
+extern void lang_init
+ (void);
+extern void lang_finish
+ (void);
+extern lang_memory_region_type *lang_memory_region_lookup
+ (const char *const, bfd_boolean);
+extern lang_memory_region_type *lang_memory_region_default
+ (asection *);
+extern void lang_map
+ (void);
+extern void lang_set_flags
+ (lang_memory_region_type *, const char *, int);
+extern void lang_add_output
+ (const char *, int from_script);
- PARAMS ((const char *output_section_statement_name,
- etree_type * address_exp,
- enum section_type sectype,
- bfd_vma block_value,
- etree_type *align,
- etree_type *subalign,
- etree_type *));
-extern void lang_final PARAMS ((void));
-extern void lang_process PARAMS ((void));
-extern void lang_section_start PARAMS ((const char *, union etree_union *));
-extern void lang_add_entry PARAMS ((const char *, boolean));
-extern void lang_add_target PARAMS ((const char *));
+ (const char *output_section_statement_name,
+ etree_type *address_exp,
+ enum section_type sectype,
+ etree_type *align,
+ etree_type *subalign,
+ etree_type *, int);
+extern void lang_final
+ (void);
+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);
+extern void lang_default_entry
+ (const char *);
+extern void lang_add_target
+ (const char *);
- PARAMS ((const char *, boolean, const char *, boolean, boolean, name_list *));
-extern void lang_add_map PARAMS ((const char *));
-extern void lang_add_fill PARAMS ((int));
-extern lang_assignment_statement_type * lang_add_assignment PARAMS ((union etree_union *));
-extern void lang_add_attribute PARAMS ((enum statement_enum));
-extern void lang_startup PARAMS ((const char *));
-extern void lang_float PARAMS ((enum bfd_boolean));
+ (struct wildcard_spec *, struct wildcard_list *, bfd_boolean);
+extern void lang_add_map
+ (const char *);
+extern void lang_add_fill
+ (fill_type *);
+extern lang_assignment_statement_type *lang_add_assignment
+ (union etree_union *);
+extern void lang_add_attribute
+ (enum statement_enum);
+extern void lang_startup
+ (const char *);
+extern void lang_float
+ (bfd_boolean);
- PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *,
- const char *));
-extern void lang_abs_symbol_at_end_of PARAMS ((const char *, const char *));
-extern void lang_abs_symbol_at_beginning_of PARAMS ((const char *,
- const char *));
-extern void lang_statement_append PARAMS ((struct statement_list *,
- union lang_statement_union *,
- union lang_statement_union **));
+ (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 **);
- PARAMS ((void (*dothis) (lang_input_statement_type *)));
-extern bfd_vma lang_do_assignments
- PARAMS ((lang_statement_union_type * s,
- lang_output_section_statement_type *output_section_statement,
- fill_type fill,
- bfd_vma dot));
-
-#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)\
-
-extern void lang_process PARAMS ((void));
-extern void ldlang_add_file PARAMS ((lang_input_statement_type *));
+ (void (*dothis) (lang_input_statement_type *));
+extern void lang_reset_memory_regions
+ (void);
+extern void lang_do_assignments
+ (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) \
+
+extern void lang_process
+ (void);
+extern void ldlang_add_file
+ (lang_input_statement_type *);
- PARAMS ((const char * const));
+ (const char * const);
+extern lang_output_section_statement_type *lang_output_section_find_by_flags
+ (const asection *, lang_output_section_statement_type **,
+ lang_match_sec_type_func);
+extern lang_output_section_statement_type *lang_insert_orphan
+ (asection *, const char *, lang_output_section_statement_type *,
+ struct orphan_save *, etree_type *, lang_statement_list_type *);
- PARAMS ((const char *name, lang_input_file_enum_type file_type,
- const char *target));
-extern void lang_add_keepsyms_file PARAMS ((const char *filename));
+ (const char *, lang_input_file_enum_type, const char *);
+extern void lang_add_keepsyms_file
+ (const char *);
- lang_output_section_statement_lookup PARAMS ((const char * const name));
-extern void ldlang_add_undef PARAMS ((const char *const name));
-extern void lang_add_output_format PARAMS ((const char *, const char *,
- const char *, int from_script));
-extern void lang_list_init PARAMS ((lang_statement_list_type*));
-extern void lang_add_data PARAMS ((int type, union etree_union *));
+ lang_output_section_statement_lookup
+ (const char *const);
+extern void ldlang_add_undef
+ (const char *const);
+extern void lang_add_output_format
+ (const char *, const char *, const char *, int);
+extern void lang_list_init
+ (lang_statement_list_type *);
+extern void lang_add_data
+ (int type, union etree_union *);
- PARAMS ((bfd_reloc_code_real_type reloc, reloc_howto_type *howto,
- asection *section, const char *name, union etree_union *addend));
+ (bfd_reloc_code_real_type, reloc_howto_type *, asection *, const char *,
+ union etree_union *);
- PARAMS ((void (*func) (lang_statement_union_type *)));
-extern PTR stat_alloc PARAMS ((size_t size));
-extern void dprint_statement PARAMS ((lang_statement_union_type *, int));
-extern bfd_vma lang_size_sections
- PARAMS ((lang_statement_union_type *s,
- lang_output_section_statement_type *output_section_statement,
- lang_statement_union_type **prev, fill_type fill,
- bfd_vma dot, boolean relax));
-extern void lang_enter_group PARAMS ((void));
-extern void lang_leave_group PARAMS ((void));
-extern void wild_doit
- PARAMS ((lang_statement_list_type *ptr, asection *section,
- lang_output_section_statement_type *output,
- lang_input_statement_type *file));
+ (void (*) (lang_statement_union_type *));
+extern void *stat_alloc
+ (size_t);
+extern void strip_excluded_output_sections
+ (void);
+extern void dprint_statement
+ (lang_statement_union_type *, int);
+extern void lang_size_sections
+ (bfd_boolean *, bfd_boolean);
+extern void one_lang_size_sections_pass
+ (bfd_boolean *, bfd_boolean);
+extern void lang_enter_group
+ (void);
+extern void lang_leave_group
+ (void);
+extern void lang_add_section
+ (lang_statement_list_type *, asection *,
+ lang_output_section_statement_type *);
- PARAMS ((const char *, etree_type *, boolean, boolean, etree_type *,
- etree_type *));
-extern void lang_add_nocrossref PARAMS ((struct lang_nocrossref *));
-extern void lang_enter_overlay PARAMS ((etree_type *, etree_type *, int));
-extern void lang_enter_overlay_section PARAMS ((const char *));
+ (const char *, etree_type *, bfd_boolean, bfd_boolean, etree_type *,
+ etree_type *);
+extern void lang_add_nocrossref
+ (lang_nocrossref_type *);
+extern void lang_enter_overlay
+ (etree_type *, etree_type *);
+extern void lang_enter_overlay_section
+ (const char *);
- PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *,
- const char *));
+ (etree_type *, int, fill_type *, const char *,
+ lang_output_section_phdr_list *, const char *);
-extern struct bfd_elf_version_expr *lang_new_vers_regex
- PARAMS ((struct bfd_elf_version_expr *, const char *, const char *));
+extern struct bfd_elf_version_expr *lang_new_vers_pattern
+ (struct bfd_elf_version_expr *, const char *, const char *, bfd_boolean);
- PARAMS ((const char *, struct bfd_elf_version_tree *,
- struct bfd_elf_version_deps *));
+ (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_cpp_typeinfo (void);
+extern void lang_append_dynamic_list_cpp_new (void);
+bfd_boolean unique_section_p
+ (const asection *);
+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
+ (lang_input_statement_type *, lang_statement_list_type *);
+
+extern bfd_boolean
+ldlang_override_segment_assignment
+ (struct bfd_link_info *, bfd *, asection *, asection *, bfd_boolean);