diff options
Diffstat (limited to 'contrib/binutils/ld/ldlang.h')
| -rw-r--r-- | contrib/binutils/ld/ldlang.h | 405 |
1 files changed, 243 insertions, 162 deletions
diff --git a/contrib/binutils/ld/ldlang.h b/contrib/binutils/ld/ldlang.h index 57c8c51..649fea1 100644 --- a/contrib/binutils/ld/ldlang.h +++ b/contrib/binutils/ld/ldlang.h @@ -1,6 +1,6 @@ /* ldlang.h - linker command language support Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002 + 2001, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of GLD, the Gnu Linker. @@ -23,7 +23,10 @@ #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, @@ -32,17 +35,20 @@ typedef 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; @@ -51,12 +57,14 @@ typedef struct memory_region_struct { 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, @@ -77,24 +85,28 @@ typedef struct lang_statement_header_struct { } 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, @@ -103,16 +115,18 @@ enum section_type { 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; @@ -120,18 +134,18 @@ typedef struct lang_output_section_statement_struct { union lang_statement_union *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; - 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; @@ -141,25 +155,29 @@ typedef struct lang_output_section_statement_struct { 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; @@ -170,7 +188,8 @@ typedef struct { /* Generate a reloc in the output file. */ -typedef struct { +typedef struct +{ lang_statement_header_type header; /* Reloc to generate. */ @@ -179,12 +198,12 @@ typedef struct { /* 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. */ @@ -200,18 +219,19 @@ typedef struct { 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. */ @@ -220,66 +240,80 @@ typedef struct lang_input_statement_struct { /* 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 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; } lang_address_statement_type; -typedef struct { +typedef struct +{ lang_statement_header_type header; bfd_vma output_offset; size_t size; @@ -292,12 +326,14 @@ typedef struct { 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; @@ -320,12 +356,13 @@ typedef union lang_statement_union { /* 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; }; @@ -333,16 +370,18 @@ struct lang_phdr { /* 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; @@ -350,139 +389,181 @@ 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; +}; + 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 struct bfd_sym_chain entry_symbol; extern const char *entry_section; -extern boolean entry_from_cmdline; +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 *); +extern void lang_final + (void); +extern void lang_process + (void); +extern void lang_section_start + (const char *, union etree_union *); +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 ((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)); + (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 ((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 *)); -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 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, - 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_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 *)); -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 ((fill_type *, struct lang_output_section_phdr_list *)); + (fill_type *, lang_output_section_phdr_list *); extern void lang_leave_overlay - PARAMS ((etree_type *, int, fill_type *, 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_pattern - PARAMS ((struct bfd_elf_version_expr *, const char *, const char *)); + (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 *)); -extern const char *lang_get_output_target PARAMS ((void)); + (const char *, struct bfd_elf_version_tree *, struct bfd_elf_version_deps *); +bfd_boolean unique_section_p + (const char *); +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 *); #endif |
