ldlang.h

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  const char *target;
  boolean real;
} lang_input_statement_type;

typedef struct {
  lang_statement_header_type header;
  asection *section;
  lang_input_statement_type *ifile;

} lang_input_section_type;

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 {
  lang_statement_header_type header;
  const char *section_name;
  boolean sections_sorted;
  const char *filename;
  boolean filenames_sorted;
  boolean keep_sections;
  struct name_list *exclude_filename_list;
  lang_statement_list_type children;
} lang_wild_statement_type;

typedef struct lang_address_statement_struct {
  lang_statement_header_type header;
  const char *section_name;
  union etree_union *address;
} lang_address_statement_type;

typedef struct {
  lang_statement_header_type header;
  bfd_vma output_offset;
  size_t size;
  asection *output_section;
  fill_type fill;
} lang_padding_statement_type;

/* A group statement collects a set of libraries together.  The
   libraries are searched multiple times, until no new undefined
   symbols are found.  The effect is to search a group of libraries as
   though they were a single library.  */

typedef struct {
  lang_statement_header_type header;
  lang_statement_list_type children;
} lang_group_statement_type;

typedef union lang_statement_union {
  lang_statement_header_type header;
  union lang_statement_union *next;
  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_afile_asection_pair_statement_type afile_asection_pair_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_fill_statement_type fill_statement;
  lang_padding_statement_type padding_statement;
  lang_group_statement_type group_statement;
} lang_statement_union_type;

/* This structure holds information about a program header, from the
   PHDRS command in the linker script.  */

struct lang_phdr {
  struct lang_phdr *next;
  const char *name;
  unsigned long type;
  boolean filehdr;
  boolean phdrs;
  etree_type *at;
  etree_type *flags;
};

/* This structure is used to hold a list of sections which may not
   cross reference each other.  */

struct lang_nocrossref {
  struct lang_nocrossref *next;
  const char *name;
};

/* The list of nocrossref lists.  */

struct lang_nocrossrefs {
  struct lang_nocrossrefs *next;
  struct lang_nocrossref *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 *next;
  const char *name;
};

extern struct unique_sections *unique_section_list;

extern lang_output_section_statement_type *abs_output_section;
extern lang_statement_list_type lang_output_section_statement;
extern boolean lang_has_input_file;
extern etree_type *base;
extern lang_statement_list_type *stat_ptr;
extern boolean delete_output_file_on_failure;

extern const char *entry_symbol;
extern boolean entry_from_cmdline;
extern lang_statement_list_type file_chain;

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_output_section_statement_type *lang_enter_output_section_statement
  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 *));
extern void lang_add_wild
  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));
extern void lang_leave_output_section_statement
  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 **));
extern void lang_for_each_input_file
  PARAMS ((void (*dothis) (lang_input_statement_type *)));
extern void lang_for_each_file
  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 *));
extern lang_output_section_statement_type *lang_output_section_find
  PARAMS ((const char * const));
extern lang_input_statement_type *lang_add_input_file
  PARAMS ((const char *name, lang_input_file_enum_type file_type,
	   const char *target));
extern void lang_add_keepsyms_file PARAMS ((const char *filename));
extern lang_output_section_statement_type *
  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 *));
extern void lang_add_reloc
  PARAMS ((bfd_reloc_code_real_type reloc, reloc_howto_type *howto,
	   asection *section, const char *name, union etree_union *addend));
extern void lang_for_each_statement
  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));
extern void lang_new_phdr
  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 *));
extern void lang_leave_overlay_section
  PARAMS ((bfd_vma, struct lang_output_section_phdr_list *));
extern void lang_leave_overlay
  PARAMS ((bfd_vma, const char *, struct 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_regex
  PARAMS ((struct bfd_elf_version_expr *, const char *, const char *));
extern struct bfd_elf_version_tree *lang_new_vers_node
  PARAMS ((struct bfd_elf_version_expr *, struct bfd_elf_version_expr *));
extern struct bfd_elf_version_deps *lang_add_vers_depend
  PARAMS ((struct bfd_elf_version_deps *, const char *));
extern void lang_register_vers_node
  PARAMS ((const char *, struct bfd_elf_version_tree *,
	   struct bfd_elf_version_deps *));
boolean unique_section_p PARAMS ((const char *));
extern void lang_add_unique PARAMS ((const char *));

#endif