/* ldlang.h - linker command language support
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003
+ 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
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. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#ifndef LDLANG_H
#define LDLANG_H
-typedef enum {
+#define DEFAULT_MEMORY_REGION "*default*"
+
+typedef enum
+{
lang_input_file_is_l_enum,
lang_input_file_is_symbols_only_enum,
lang_input_file_is_marker_enum,
lang_input_file_is_file_enum
} lang_input_file_enum_type;
-struct _fill_type {
+struct _fill_type
+{
size_t size;
unsigned char data[1];
};
-typedef struct statement_list {
+typedef struct statement_list
+{
union lang_statement_union *head;
union lang_statement_union **tail;
} lang_statement_list_type;
-typedef struct memory_region_struct {
+typedef struct memory_region_struct
+{
char *name;
struct memory_region_struct *next;
bfd_vma origin;
bfd_boolean had_full_message;
} lang_memory_region_type;
-typedef struct lang_statement_header_struct {
+typedef struct lang_statement_header_struct
+{
union lang_statement_union *next;
- enum statement_enum {
+ enum statement_enum
+ {
lang_output_section_statement_enum,
lang_assignment_statement_enum,
lang_input_statement_enum,
} type;
} lang_statement_header_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
union etree_union *exp;
} lang_assignment_statement_type;
-typedef struct lang_target_statement_struct {
+typedef struct lang_target_statement_struct
+{
lang_statement_header_type header;
const char *target;
} lang_target_statement_type;
-typedef struct lang_output_statement_struct {
+typedef struct lang_output_statement_struct
+{
lang_statement_header_type header;
const char *name;
} lang_output_statement_type;
/* Section types specified in a linker script. */
-enum section_type {
+enum section_type
+{
normal_section,
dsect_section,
copy_section,
overlay_section
};
-/* This structure holds a list of program headers describing segments
- in which this section should be placed. */
+/* This structure holds a list of program headers describing
+ segments in which this section should be placed. */
-struct lang_output_section_phdr_list {
+typedef struct lang_output_section_phdr_list
+{
struct lang_output_section_phdr_list *next;
const char *name;
bfd_boolean used;
-};
+} lang_output_section_phdr_list;
-typedef struct lang_output_section_statement_struct {
+typedef struct lang_output_section_statement_struct
+{
lang_statement_header_type header;
union etree_union *addr_tree;
lang_statement_list_type children;
const char *memspec;
- union lang_statement_union *next;
+ struct lang_output_section_statement_struct *next;
const char *name;
- bfd_boolean processed;
+ int processed;
asection *bfd_section;
- flagword flags; /* Or together of all input sections */
+ flagword flags; /* Or together of all input sections. */
enum section_type sectype;
- struct memory_region_struct *region;
- struct memory_region_struct *lma_region;
+ lang_memory_region_type *region;
+ lang_memory_region_type *lma_region;
size_t block_value;
fill_type *fill;
- int subsection_alignment; /* alignment of components */
- int section_alignment; /* alignment of start of section */
+ int subsection_alignment; /* Alignment of components. */
+ int section_alignment; /* Alignment of start of section. */
+ int constraint;
+ unsigned int all_input_readonly : 1;
+ unsigned int ignored : 1;
union etree_union *load_base;
to move '.' past all the overlaid sections. */
union etree_union *update_dot_tree;
- struct lang_output_section_phdr_list *phdrs;
+ lang_output_section_phdr_list *phdrs;
} lang_output_section_statement_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
} lang_common_statement_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
} lang_object_symbols_statement_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
fill_type *fill;
int size;
asection *output_section;
} lang_fill_statement_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
unsigned int type;
union etree_union *exp;
/* Generate a reloc in the output file. */
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
/* Reloc to generate. */
/* Reloc howto structure. */
reloc_howto_type *howto;
- /* Section to generate reloc against. Exactly one of section and
- name must be NULL. */
+ /* Section to generate reloc against.
+ Exactly one of section and name must be NULL. */
asection *section;
- /* Name of symbol to generate reloc against. Exactly one of section
- and name must be NULL. */
+ /* Name of symbol to generate reloc against.
+ Exactly one of section and name must be NULL. */
const char *name;
/* Expression for addend. */
bfd_vma output_vma;
} lang_reloc_statement_type;
-typedef struct lang_input_statement_struct {
+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. */
+ /* 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 */
+
+ /* Point to the next file, but skips archive contents. */
union lang_statement_union *next_real_file;
bfd_boolean is_archive;
/* 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. */
-
bfd_boolean just_syms_flag;
/* Whether to search for this entry as a dynamic archive. */
bfd_boolean dynamic;
+ /* Whether DT_NEEDED tags should be added for dynamic libraries in
+ DT_NEEDED tags from this entry. */
+ bfd_boolean add_needed;
+
+ /* Whether this entry should cause a DT_NEEDED tag only when
+ satisfying references from regular files, or always. */
+ bfd_boolean as_needed;
+
/* Whether to include the entire contents of an archive. */
bfd_boolean whole_archive;
bfd_boolean loaded;
-#if 0
- unsigned int globals_in_this_file;
-#endif
const char *target;
bfd_boolean real;
} lang_input_statement_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
asection *section;
lang_input_statement_type *ifile;
} lang_input_section_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
asection *section;
union lang_statement_union *file;
} lang_afile_asection_pair_statement_type;
-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);
+
+struct lang_wild_statement_struct
+{
lang_statement_header_type header;
const char *filename;
bfd_boolean filenames_sorted;
struct wildcard_list *section_list;
bfd_boolean keep_sections;
lang_statement_list_type children;
-} lang_wild_statement_type;
-typedef struct lang_address_statement_struct {
+ walk_wild_section_handler_t walk_wild_section_handler;
+ struct wildcard_list *handler_data[4];
+};
+
+typedef struct lang_address_statement_struct
+{
lang_statement_header_type header;
const char *section_name;
union etree_union *address;
+ const segment_type *segment;
} lang_address_statement_type;
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
bfd_vma output_offset;
size_t size;
symbols are found. The effect is to search a group of libraries as
though they were a single library. */
-typedef struct {
+typedef struct
+{
lang_statement_header_type header;
lang_statement_list_type children;
} lang_group_statement_type;
-typedef union lang_statement_union {
+typedef union lang_statement_union
+{
lang_statement_header_type header;
lang_wild_statement_type wild_statement;
lang_data_statement_type data_statement;
/* This structure holds information about a program header, from the
PHDRS command in the linker script. */
-struct lang_phdr {
+struct lang_phdr
+{
struct lang_phdr *next;
const char *name;
unsigned long type;
/* This structure is used to hold a list of sections which may not
cross reference each other. */
-struct lang_nocrossref {
+typedef struct lang_nocrossref
+{
struct lang_nocrossref *next;
const char *name;
-};
+} lang_nocrossref_type;
/* The list of nocrossref lists. */
-struct lang_nocrossrefs {
+struct lang_nocrossrefs
+{
struct lang_nocrossrefs *next;
- struct lang_nocrossref *list;
+ lang_nocrossref_type *list;
};
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. */
-struct unique_sections {
+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 lang_definedness_hash_entry
+{
struct bfd_hash_entry root;
int iteration;
};
-extern struct unique_sections *unique_section_list;
+/* 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 lang_output_section_statement_type *abs_output_section;
extern lang_statement_list_type lang_output_section_statement;
extern void lang_init
(void);
-extern struct memory_region_struct *lang_memory_region_lookup
- (const char *const);
-extern struct memory_region_struct *lang_memory_region_default
+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);
(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 *);
+ etree_type *, int);
extern void lang_final
(void);
extern void lang_process
(void);
extern void lang_section_start
- (const char *, union etree_union *);
+ (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 *);
extern void lang_add_wild
extern void lang_float
(bfd_boolean);
extern void lang_leave_output_section_statement
- (fill_type *, const char *, struct lang_output_section_phdr_list *,
+ (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
- (struct statement_list *, union lang_statement_union *,
- union lang_statement_union **);
+ (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
(void (*dothis) (lang_input_statement_type *));
extern void lang_reset_memory_regions
(void);
-extern bfd_vma lang_do_assignments
- (lang_statement_union_type *, lang_output_section_statement_type *,
- fill_type *, bfd_vma);
+extern void lang_do_assignments
+ (void);
#define LANG_FOR_EACH_INPUT_STATEMENT(statement) \
lang_input_statement_type *statement; \
(lang_input_statement_type *);
extern lang_output_section_statement_type *lang_output_section_find
(const char * const);
+extern lang_output_section_statement_type *lang_output_section_find_by_flags
+ (const asection *, lang_output_section_statement_type **exact);
+extern lang_output_section_statement_type *lang_insert_orphan
+ (lang_input_statement_type *, asection *, const char *,
+ lang_output_section_statement_type *, struct orphan_save *,
+ etree_type *, lang_statement_list_type *);
extern lang_input_statement_type *lang_add_input_file
(const char *, lang_input_file_enum_type, const char *);
extern void lang_add_keepsyms_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 bfd_vma lang_size_sections
- (lang_statement_union_type *, lang_output_section_statement_type *,
- lang_statement_union_type **, fill_type *, bfd_vma, bfd_boolean *,
- bfd_boolean);
+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
(const char *, etree_type *, bfd_boolean, bfd_boolean, etree_type *,
etree_type *);
extern void lang_add_nocrossref
- (struct lang_nocrossref *);
+ (lang_nocrossref_type *);
extern void lang_enter_overlay
(etree_type *, etree_type *);
extern void lang_enter_overlay_section
(const char *);
extern void lang_leave_overlay_section
- (fill_type *, struct lang_output_section_phdr_list *);
+ (fill_type *, lang_output_section_phdr_list *);
extern void lang_leave_overlay
(etree_type *, int, fill_type *, const char *,
- struct lang_output_section_phdr_list *, const char *);
+ lang_output_section_phdr_list *, const char *);
extern struct bfd_elf_version_tree *lang_elf_version_info;
extern void lang_register_vers_node
(const char *, struct bfd_elf_version_tree *, struct bfd_elf_version_deps *);
bfd_boolean unique_section_p
- (const char *);
+ (const asection *);
extern void lang_add_unique
(const char *);
extern const char *lang_get_output_target
extern void lang_update_definedness
(const char *, struct bfd_link_hash_entry *);
+extern void add_excluded_libs (const char *);
+
#endif
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