X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=ld%2Fldlang.h;h=2a8740818ebf31964876d1037d3a8d4f14cc5ed7;hb=1e9cc1c27b927dc95dfaec390eb492d29bbc7a0b;hp=168caecf4767812fe1ba1249d76e2002423b6cae;hpb=86043bbbd53f965b6f2003af2f96f55c6702d0de;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/ldlang.h b/ld/ldlang.h index 168caecf47..2a8740818e 100644 --- a/ld/ldlang.h +++ b/ld/ldlang.h @@ -1,24 +1,24 @@ /* ldlang.h - linker command language support Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - 2001, 2002, 2003, 2004, 2005 + 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. - This file is part of GLD, the Gnu Linker. + This file is part of the GNU Binutils. - GLD is free software; you can redistribute it and/or modify + This program 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 2, or (at your option) - any later version. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. - GLD is distributed in the hope that it will be useful, + This program 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, 51 Franklin Street - Fifth Floor, Boston, MA - 02110-1301, USA. */ + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ #ifndef LDLANG_H #define LDLANG_H @@ -43,46 +43,53 @@ struct _fill_type typedef struct statement_list { - union lang_statement_union *head; - union lang_statement_union **tail; + union lang_statement_union * head; + union lang_statement_union ** tail; } lang_statement_list_type; +typedef struct memory_region_name_struct +{ + const char * name; + struct memory_region_name_struct * next; +} lang_memory_region_name; + typedef struct memory_region_struct { - char *name; + lang_memory_region_name name_list; struct memory_region_struct *next; bfd_vma origin; bfd_size_type length; bfd_vma current; - bfd_size_type old_length; + union lang_statement_union *last_os; flagword flags; flagword not_flags; bfd_boolean had_full_message; } lang_memory_region_type; +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_insert_statement_enum, + lang_constructors_statement_enum +}; + 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; + enum statement_enum type; } lang_statement_header_type; typedef struct @@ -108,11 +115,9 @@ typedef struct lang_output_statement_struct enum section_type { normal_section, - dsect_section, - copy_section, + overlay_section, noload_section, - info_section, - overlay_section + noalloc_section }; /* This structure holds a list of program headers describing @@ -128,28 +133,15 @@ typedef struct lang_output_section_phdr_list 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; struct lang_output_section_statement_struct *next; + struct lang_output_section_statement_struct *prev; const char *name; - - bfd_boolean processed; - asection *bfd_section; - flagword flags; /* Or together of all input sections. */ - enum section_type sectype; 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 constraint; - unsigned int all_input_readonly : 1; - unsigned int ignored : 1; - + union etree_union *addr_tree; union etree_union *load_base; /* If non-null, an expression to evaluate after setting the section's @@ -159,6 +151,20 @@ typedef struct lang_output_section_statement_struct union etree_union *update_dot_tree; lang_output_section_phdr_list *phdrs; + + unsigned int block_value; + int subsection_alignment; /* Alignment of components. */ + int section_alignment; /* Alignment of start of section. */ + int constraint; + flagword flags; + enum section_type sectype; + unsigned int processed_vma : 1; + unsigned int processed_lma : 1; + unsigned int all_input_readonly : 1; + /* If this section should be ignored. */ + unsigned int ignored : 1; + /* If there is a symbol relative to this section. */ + unsigned int section_relative_symbol : 1; } lang_output_section_statement_type; typedef struct @@ -186,7 +192,7 @@ typedef struct union etree_union *exp; bfd_vma value; asection *output_section; - bfd_vma output_vma; + bfd_vma output_offset; } lang_data_statement_type; /* Generate a reloc in the output file. */ @@ -218,8 +224,8 @@ typedef struct /* Output section where reloc should be performed. */ asection *output_section; - /* VMA within output section. */ - bfd_vma output_vma; + /* Offset within output section. */ + bfd_vma output_offset; } lang_reloc_statement_type; typedef struct lang_input_statement_struct @@ -234,13 +240,6 @@ typedef struct lang_input_statement_struct bfd *the_bfd; - 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; @@ -248,57 +247,49 @@ typedef struct lang_input_statement_struct /* Point to the next file, but skips archive contents. */ union lang_statement_union *next_real_file; - bfd_boolean is_archive; + const char *target; + + unsigned int is_archive : 1; /* 1 means search a set of directories for this file. */ - bfd_boolean search_dirs_flag; + unsigned int search_dirs_flag : 1; /* 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; + unsigned int sysrooted : 1; /* 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; + unsigned int just_syms_flag : 1; /* Whether to search for this entry as a dynamic archive. */ - bfd_boolean dynamic; + unsigned int dynamic : 1; /* Whether DT_NEEDED tags should be added for dynamic libraries in DT_NEEDED tags from this entry. */ - bfd_boolean add_needed; + unsigned int add_needed : 1; /* Whether this entry should cause a DT_NEEDED tag only when satisfying references from regular files, or always. */ - bfd_boolean as_needed; + unsigned int as_needed : 1; /* Whether to include the entire contents of an archive. */ - bfd_boolean whole_archive; + unsigned int whole_archive : 1; - bfd_boolean loaded; + unsigned int loaded : 1; - const char *target; - bfd_boolean real; + unsigned int real : 1; } 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_wild_statement_type; typedef void (*callback_t) (lang_wild_statement_type *, struct wildcard_list *, @@ -309,6 +300,18 @@ typedef void (*walk_wild_section_handler_t) (lang_wild_statement_type *, callback_t callback, void *data); +typedef bfd_boolean (*lang_match_sec_type_func) (bfd *, const asection *, + bfd *, const asection *); + +/* Binary search tree structure to efficiently sort sections by + name. */ +typedef struct lang_section_bst +{ + asection *section; + struct lang_section_bst *left; + struct lang_section_bst *right; +} lang_section_bst_type; + struct lang_wild_statement_struct { lang_statement_header_type header; @@ -320,6 +323,7 @@ struct lang_wild_statement_struct walk_wild_section_handler_t walk_wild_section_handler; struct wildcard_list *handler_data[4]; + lang_section_bst_type *tree; }; typedef struct lang_address_statement_struct @@ -350,6 +354,13 @@ typedef struct lang_statement_list_type children; } lang_group_statement_type; +typedef struct +{ + lang_statement_header_type header; + const char *where; + bfd_boolean is_before; +} lang_insert_statement_type; + typedef union lang_statement_union { lang_statement_header_type header; @@ -358,7 +369,6 @@ typedef union lang_statement_union 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; @@ -369,6 +379,7 @@ typedef union lang_statement_union lang_fill_statement_type fill_statement; lang_padding_statement_type padding_statement; lang_group_statement_type group_statement; + lang_insert_statement_type insert_statement; } lang_statement_union_type; /* This structure holds information about a program header, from the @@ -385,6 +396,8 @@ struct lang_phdr etree_type *flags; }; +extern struct lang_phdr *lang_phdr_list; + /* This structure is used to hold a list of sections which may not cross reference each other. */ @@ -424,7 +437,8 @@ struct lang_definedness_hash_entry /* Used by place_orphan to keep track of orphan sections and statements. */ -struct orphan_save { +struct orphan_save +{ const char *name; flagword flags; lang_output_section_statement_type *os; @@ -433,6 +447,7 @@ struct orphan_save { lang_output_section_statement_type **os_tail; }; +extern const char *output_target; extern lang_output_section_statement_type *abs_output_section; extern lang_statement_list_type lang_output_section_statement; extern bfd_boolean lang_has_input_file; @@ -444,6 +459,7 @@ 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 lang_statement_list_type input_file_chain; extern int lang_statement_iteration; @@ -451,10 +467,10 @@ extern void lang_init (void); extern void lang_finish (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 lang_memory_region_type * lang_memory_region_lookup + (const char * const, bfd_boolean); +extern void lang_memory_region_alias + (const char *, const char *); extern void lang_map (void); extern void lang_set_flags @@ -470,6 +486,8 @@ extern lang_output_section_statement_type *lang_enter_output_section_statement etree_type *, int); extern void lang_final (void); +extern void lang_relax_sections + (bfd_boolean); extern void lang_process (void); extern void lang_section_start @@ -519,31 +537,37 @@ extern void lang_do_assignments statement != (lang_input_statement_type *) NULL; \ statement = (lang_input_statement_type *) statement->next) \ +#define lang_output_section_find(NAME) \ + lang_output_section_statement_lookup (NAME, 0, FALSE) + extern void lang_process (void); extern void ldlang_add_file (lang_input_statement_type *); -extern lang_output_section_statement_type *lang_output_section_find - (const char * const); extern lang_output_section_statement_type *lang_output_section_find_by_flags - (const asection *, lang_output_section_statement_type **exact); + (const asection *, lang_output_section_statement_type **, + lang_match_sec_type_func); 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 *); + (asection *, const char *, int, lang_output_section_statement_type *, + struct orphan_save *, etree_type *, lang_statement_list_type *); extern lang_input_statement_type *lang_add_input_file (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 - (const char *const); +extern lang_output_section_statement_type *lang_output_section_statement_lookup + (const char *, int, bfd_boolean); +extern lang_output_section_statement_type *next_matching_output_section_statement + (lang_output_section_statement_type *, int); 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 push_stat_ptr + (lang_statement_list_type *); +extern void pop_stat_ptr + (void); extern void lang_add_data (int type, union etree_union *); extern void lang_add_reloc @@ -561,13 +585,15 @@ extern void lang_size_sections (bfd_boolean *, bfd_boolean); extern void one_lang_size_sections_pass (bfd_boolean *, bfd_boolean); +extern void lang_add_insert + (const char *, int); extern void lang_enter_group (void); extern void lang_leave_group (void); extern void lang_add_section (lang_statement_list_type *, asection *, - lang_output_section_statement_type *, lang_input_statement_type *); + lang_output_section_statement_type *); extern void lang_new_phdr (const char *, etree_type *, bfd_boolean, bfd_boolean, etree_type *, etree_type *); @@ -593,8 +619,9 @@ extern struct bfd_elf_version_deps *lang_add_vers_depend (struct bfd_elf_version_deps *, const char *); extern void lang_register_vers_node (const char *, struct bfd_elf_version_tree *, struct bfd_elf_version_deps *); -bfd_boolean unique_section_p - (const asection *); +extern void lang_append_dynamic_list (struct bfd_elf_version_expr *); +extern void lang_append_dynamic_list_cpp_typeinfo (void); +extern void lang_append_dynamic_list_cpp_new (void); extern void lang_add_unique (const char *); extern const char *lang_get_output_target @@ -605,5 +632,11 @@ extern void lang_update_definedness (const char *, struct bfd_link_hash_entry *); extern void add_excluded_libs (const char *); +extern bfd_boolean load_symbols + (lang_input_statement_type *, lang_statement_list_type *); + +extern bfd_boolean +ldlang_override_segment_assignment + (struct bfd_link_info *, bfd *, asection *, asection *, bfd_boolean); #endif