/* ldlang.h - linker command language support
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001
+ 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
GLD 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 1, or (at your option)
+ the Free Software Foundation; either version 2, or (at your option)
any later version.
GLD is distributed in the hope that it will be useful,
#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;
-typedef unsigned int 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_size_type old_length;
flagword flags;
flagword not_flags;
- boolean had_full_message;
+ 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;
- boolean used;
-};
+ 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;
- 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;
+ 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;
+ bfd_boolean all_input_readonly;
union etree_union *load_base;
- struct lang_output_section_phdr_list *phdrs;
+ /* 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;
+
+ 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;
+ 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;
- boolean closed;
+ bfd_boolean closed;
file_ptr passive_position;
/* Symbol table of the file. */
/* 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;
- boolean is_archive;
+ bfd_boolean is_archive;
/* 1 means search a set of directories for this file. */
- boolean search_dirs_flag;
+ bfd_boolean search_dirs_flag;
+
+ /* 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. */
+ bfd_boolean sysrooted;
/* 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. */
-
- boolean just_syms_flag;
+ bfd_boolean just_syms_flag;
/* Whether to search for this entry as a dynamic archive. */
- boolean dynamic;
+ 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. */
- boolean whole_archive;
+ bfd_boolean whole_archive;
- boolean loaded;
+ bfd_boolean loaded;
-#if 0
- unsigned int globals_in_this_file;
-#endif
const char *target;
- boolean real;
+ 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_statement_header_type header;
const char *filename;
- boolean filenames_sorted;
+ bfd_boolean filenames_sorted;
struct wildcard_list *section_list;
- boolean keep_sections;
+ bfd_boolean keep_sections;
lang_statement_list_type children;
} lang_wild_statement_type;
-typedef struct lang_address_statement_struct {
+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;
asection *output_section;
- fill_type fill;
+ fill_type *fill;
} lang_padding_statement_type;
/* A group statement collects a set of libraries together. The
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;
- union lang_statement_union *next;
lang_wild_statement_type wild_statement;
lang_data_statement_type data_statement;
lang_reloc_statement_type reloc_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;
- boolean filehdr;
- boolean phdrs;
+ bfd_boolean filehdr;
+ bfd_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 {
+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 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 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 bfd_boolean lang_has_input_file;
extern etree_type *base;
extern lang_statement_list_type *stat_ptr;
-extern boolean delete_output_file_on_failure;
+extern bfd_boolean delete_output_file_on_failure;
-extern const char *entry_symbol;
-extern boolean entry_from_cmdline;
+extern struct bfd_sym_chain entry_symbol;
+extern const char *entry_section;
+extern bfd_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 int lang_statement_iteration;
+
+extern void lang_init
+ (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);
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 *));
+ (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_add_target
+ (const char *);
extern void lang_add_wild
- PARAMS ((struct wildcard_spec *, struct wildcard_list *, boolean));
-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);
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 **));
+ (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
- PARAMS ((void (*dothis) (lang_input_statement_type *)));
+ (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 *));
+ (void (*dothis) (lang_input_statement_type *));
+extern void lang_reset_memory_regions
+ (void);
+extern void lang_do_assignments
+ (lang_statement_union_type *, lang_output_section_statement_type *,
+ fill_type *, bfd_vma);
+
+#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 *);
extern lang_output_section_statement_type *lang_output_section_find
- 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 **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
- 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 *);
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 *));
+ 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 *);
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));
+ (bfd_reloc_code_real_type, reloc_howto_type *, asection *, const char *,
+ union etree_union *);
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));
+ (void (*) (lang_statement_union_type *));
+extern void *stat_alloc
+ (size_t);
+extern void dprint_statement
+ (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));
+ (lang_statement_union_type *, lang_output_section_statement_type *,
+ lang_statement_union_type **, fill_type *, bfd_vma, bfd_boolean *,
+ bfd_boolean);
+extern void lang_enter_group
+ (void);
+extern void lang_leave_group
+ (void);
extern void lang_add_section
- PARAMS ((lang_statement_list_type *ptr, asection *section,
- lang_output_section_statement_type *output,
- lang_input_statement_type *file));
+ (lang_statement_list_type *, asection *,
+ lang_output_section_statement_type *, lang_input_statement_type *);
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 *));
+ (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 *);
extern void lang_leave_overlay_section
- PARAMS ((bfd_vma, struct lang_output_section_phdr_list *));
+ (fill_type *, lang_output_section_phdr_list *);
extern void lang_leave_overlay
- 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_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_expr *lang_new_vers_pattern
+ (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 *));
+ (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 *));
+ (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 *));
+ (const char *, struct bfd_elf_version_tree *, struct bfd_elf_version_deps *);
+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 *);
#endif
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