X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fldlang.h;h=eb54a59ae0123230790fd235c347f64879000688;hb=1ad12f975f8a2a0ce45569ea3f550ef25705ad37;hp=3c4936b7fa957eb7afab18d0eb76b28850266380;hpb=e3f2db7fa69d2c1f4c7dbee442da6b262c706700;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/ldlang.h b/ld/ldlang.h index 3c4936b7fa..eb54a59ae0 100644 --- a/ld/ldlang.h +++ b/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, 2003 + 2001, 2002, 2003, 2004, 2005 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; @@ -54,9 +60,11 @@ typedef struct memory_region_struct { 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, @@ -103,35 +115,39 @@ 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; 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; + bfd_boolean all_input_readonly; union etree_union *load_base; @@ -141,25 +157,29 @@ 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 +190,8 @@ typedef struct { /* Generate a reloc in the output file. */ -typedef struct { +typedef struct +{ lang_statement_header_type header; /* Reloc to generate. */ @@ -179,12 +200,12 @@ 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. */ @@ -200,13 +221,14 @@ 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; @@ -220,9 +242,9 @@ 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; bfd_boolean is_archive; @@ -239,38 +261,45 @@ typedef struct lang_input_statement_struct { /* 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_statement_header_type header; const char *filename; bfd_boolean filenames_sorted; @@ -279,13 +308,16 @@ typedef struct lang_wild_statement_struct { 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; @@ -298,12 +330,14 @@ 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; @@ -326,7 +360,8 @@ 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; @@ -339,16 +374,18 @@ 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; @@ -356,11 +393,32 @@ 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; @@ -375,71 +433,70 @@ extern const char *entry_section; extern bfd_boolean entry_from_cmdline; extern lang_statement_list_type file_chain; +extern int lang_statement_iteration; + 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 *)); + (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 - PARAMS ((void)); + (void); extern void lang_set_flags - PARAMS ((lang_memory_region_type *, const char *, int)); + (lang_memory_region_type *, const char *, int); extern void lang_add_output - PARAMS ((const char *, int from_script)); + (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 *)); + (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 - PARAMS ((void)); + (void); extern void lang_process - PARAMS ((void)); + (void); extern void lang_section_start - PARAMS ((const char *, union etree_union *)); + (const char *, union etree_union *, const segment_type *); extern void lang_add_entry - PARAMS ((const char *, bfd_boolean)); + (const char *, bfd_boolean); extern void lang_add_target - PARAMS ((const char *)); + (const char *); extern void lang_add_wild - PARAMS ((struct wildcard_spec *, struct wildcard_list *, bfd_boolean)); + (struct wildcard_spec *, struct wildcard_list *, bfd_boolean); extern void lang_add_map - PARAMS ((const char *)); + (const char *); extern void lang_add_fill - PARAMS ((fill_type *)); -extern lang_assignment_statement_type * lang_add_assignment - PARAMS ((union etree_union *)); + (fill_type *); +extern lang_assignment_statement_type *lang_add_assignment + (union etree_union *); extern void lang_add_attribute - PARAMS ((enum statement_enum)); + (enum statement_enum); extern void lang_startup - PARAMS ((const char *)); + (const char *); extern void lang_float - PARAMS ((bfd_boolean)); + (bfd_boolean); extern void lang_leave_output_section_statement - PARAMS ((fill_type *, const char *, struct lang_output_section_phdr_list *, - const char *)); + (fill_type *, const char *, lang_output_section_phdr_list *, + const char *); extern void lang_abs_symbol_at_end_of - PARAMS ((const char *, const char *)); + (const char *, const char *); extern void lang_abs_symbol_at_beginning_of - PARAMS ((const char *, const char *)); + (const char *, const char *); extern void lang_statement_append - PARAMS ((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 - 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 *))); + (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)); + (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; \ @@ -448,80 +505,88 @@ extern bfd_vma lang_do_assignments statement = (lang_input_statement_type *) statement->next) \ extern void lang_process - PARAMS ((void)); + (void); extern void ldlang_add_file - PARAMS ((lang_input_statement_type *)); + (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)); + (const char *, lang_input_file_enum_type, const char *); extern void lang_add_keepsyms_file - PARAMS ((const char *filename)); + (const char *); extern lang_output_section_statement_type * lang_output_section_statement_lookup - PARAMS ((const char * const name)); + (const char *const); extern void ldlang_add_undef - PARAMS ((const char *const name)); + (const char *const); extern void lang_add_output_format - PARAMS ((const char *, const char *, const char *, int from_script)); + (const char *, const char *, const char *, int); extern void lang_list_init - PARAMS ((lang_statement_list_type*)); + (lang_statement_list_type *); extern void lang_add_data - PARAMS ((int type, union etree_union *)); + (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)); + (void (*) (lang_statement_union_type *)); +extern void *stat_alloc + (size_t); extern void dprint_statement - PARAMS ((lang_statement_union_type *, int)); + (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, bfd_boolean *relax, bfd_boolean check_regions)); + (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 - PARAMS ((void)); + (void); extern void lang_leave_group - PARAMS ((void)); + (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 *, bfd_boolean, bfd_boolean, etree_type *, - etree_type *)); + (const char *, etree_type *, bfd_boolean, bfd_boolean, etree_type *, + etree_type *); extern void lang_add_nocrossref - PARAMS ((struct lang_nocrossref *)); + (lang_nocrossref_type *); extern void lang_enter_overlay - PARAMS ((etree_type *)); + (etree_type *, etree_type *); extern void lang_enter_overlay_section - PARAMS ((const char *)); + (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 *)); + (const char *, struct bfd_elf_version_tree *, struct bfd_elf_version_deps *); bfd_boolean unique_section_p - PARAMS ((const char *)); + (const asection *); extern void lang_add_unique - PARAMS ((const char *)); + (const char *); extern const char *lang_get_output_target - PARAMS ((void)); + (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