/* ldlang.h - linker command language support
- Copyright 1991, 92, 93, 94, 95, 96, 97, 98, 1999
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002
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,
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
#ifndef LDLANG_H
#define LDLANG_H
-typedef enum
-{
+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;
-typedef struct statement_list
-{
+struct _fill_type {
+ size_t size;
+ unsigned char data[1];
+};
+
+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;
flagword flags;
flagword not_flags;
boolean had_full_message;
-} lang_memory_region_type ;
-
-typedef struct lang_statement_header_struct
-{
- union lang_statement_union *next;
- 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_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_statement_header_type;
+} lang_memory_region_type;
+typedef struct lang_statement_header_struct {
+ union lang_statement_union *next;
+ 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_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_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,
/* This structure holds a list of program headers describing segments
in which this section should be placed. */
-struct lang_output_section_phdr_list
-{
+struct lang_output_section_phdr_list {
struct lang_output_section_phdr_list *next;
const char *name;
boolean used;
};
-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 *name;
boolean processed;
-
+
asection *bfd_section;
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;
+ 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 */
union etree_union *load_base;
+ /* 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;
} 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;
+ union etree_union *exp;
bfd_vma value;
asection *output_section;
bfd_vma output_vma;
/* Generate a reloc in the output file. */
-typedef struct
-{
+typedef struct {
lang_statement_header_type header;
/* Reloc to generate. */
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;
/* 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;
file_ptr passive_position;
-
+
/* Symbol table of the file. */
asymbol **asymbols;
unsigned int symbol_count;
-
+
/* Point to the next file - whatever it is, wanders up and down
archives */
-
- union lang_statement_union *next;
+
+ union lang_statement_union *next;
/* Point to the next file, but skips archive contents */
- union lang_statement_union *next_real_file;
-
+ union lang_statement_union *next_real_file;
+
boolean is_archive;
-
+
/* 1 means search a set of directories for this file. */
boolean search_dirs_flag;
-
+
/* 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. */
-
+ Also default text_start to after this file's bss. */
+
boolean just_syms_flag;
/* Whether to search for this entry as a dynamic archive. */
boolean whole_archive;
boolean loaded;
-
- /* unsigned int globals_in_this_file;*/
+
+#if 0
+ unsigned int globals_in_this_file;
+#endif
const char *target;
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;
+} 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 *section_name;
- boolean sections_sorted;
const char *filename;
boolean filenames_sorted;
+ struct wildcard_list *section_list;
boolean keep_sections;
- const char *exclude_filename;
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 char *section_name;
+ union etree_union *address;
} 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;
/* This structure is used to hold a list of sections which may not
cross reference each other. */
-struct lang_nocrossref
-{
+struct lang_nocrossref {
struct lang_nocrossref *next;
const char *name;
};
/* The list of nocrossref lists. */
-struct lang_nocrossrefs
-{
+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 struct bfd_sym_chain entry_symbol;
+extern const char *entry_section;
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
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 void lang_enter_output_section_statement
+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,
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, const char *));
+ PARAMS ((struct wildcard_spec *, struct wildcard_list *, boolean));
extern void lang_add_map PARAMS ((const char *));
-extern void lang_add_fill PARAMS ((int));
+extern void lang_add_fill PARAMS ((fill_type *));
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 *));
+ PARAMS ((fill_type *, 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 *));
PARAMS ((void (*dothis) (lang_input_statement_type *)));
extern void lang_for_each_file
PARAMS ((void (*dothis) (lang_input_statement_type *)));
+extern void lang_reset_memory_regions PARAMS ((void));
extern bfd_vma lang_do_assignments
PARAMS ((lang_statement_union_type * s,
lang_output_section_statement_type *output_section_statement,
- fill_type fill,
+ fill_type *fill,
bfd_vma dot));
#define LANG_FOR_EACH_INPUT_STATEMENT(statement) \
- extern lang_statement_list_type file_chain; \
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
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));
+ 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
+extern void lang_add_section
PARAMS ((lang_statement_list_type *ptr, asection *section,
lang_output_section_statement_type *output,
lang_input_statement_type *file));
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 PARAMS ((etree_type *));
extern void lang_enter_overlay_section PARAMS ((const char *));
extern void lang_leave_overlay_section
- PARAMS ((bfd_vma, struct lang_output_section_phdr_list *));
+ PARAMS ((fill_type *, struct lang_output_section_phdr_list *));
extern void lang_leave_overlay
- PARAMS ((bfd_vma, const char *, struct lang_output_section_phdr_list *));
+ PARAMS ((etree_type *, int, fill_type *, 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
+extern struct bfd_elf_version_expr *lang_new_vers_pattern
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 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 *));
+extern const char *lang_get_output_target PARAMS ((void));
#endif
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