X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf-bfd.h;h=f7b020d964953c8330dfafd6076faaecb9408efd;hb=97030eea009ba78139fe20eae4585984435ac178;hp=938791563b12d72595af46d3edd404549eaf7e35;hpb=2c42be6506d72503af4ba12b184a66476f5f6052;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 938791563b..f7b020d964 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -1,13 +1,13 @@ /* BFD back-end data structures for ELF files. Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, - 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. Written by Cygnus Support. This file is part of BFD, the Binary File Descriptor library. 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 of the License, or + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -17,7 +17,8 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ #ifndef _LIBELF_H_ #define _LIBELF_H_ 1 @@ -155,6 +156,8 @@ struct elf_link_hash_entry unsigned int hidden : 1; /* Symbol was forced to local scope due to a version script file. */ unsigned int forced_local : 1; + /* Symbol was forced to be dynamic due to a version script file. */ + unsigned int dynamic : 1; /* Symbol was marked during garbage collection. */ unsigned int mark : 1; /* Symbol is referenced by a non-GOT/non-PLT relocation. This is @@ -259,31 +262,6 @@ struct elf_link_loaded_list }; /* Structures used by the eh_frame optimization code. */ -struct cie_header -{ - unsigned int length; - unsigned int id; -}; - -struct cie -{ - struct cie_header hdr; - unsigned char version; - unsigned char augmentation[20]; - bfd_vma code_align; - bfd_signed_vma data_align; - bfd_vma ra_column; - bfd_vma augmentation_size; - struct elf_link_hash_entry *personality; - unsigned char per_encoding; - unsigned char lsda_encoding; - unsigned char fde_encoding; - unsigned char initial_insn_length; - unsigned char make_relative; - unsigned char make_lsda_relative; - unsigned char initial_instructions[50]; -}; - struct eh_cie_fde { /* For FDEs, this points to the CIE used. */ @@ -302,12 +280,12 @@ struct eh_cie_fde unsigned int make_lsda_relative : 1; unsigned int need_lsda_relative : 1; unsigned int per_encoding_relative : 1; + unsigned int *set_loc; }; struct eh_frame_sec_info { unsigned int count; - unsigned int alloced; struct eh_cie_fde entry[1]; }; @@ -317,11 +295,11 @@ struct eh_frame_array_ent bfd_vma fde; }; +struct htab; + struct eh_frame_hdr_info { - struct cie last_cie; - asection *last_cie_sec; - struct eh_cie_fde *last_cie_inf; + struct htab *cies; asection *hdr_sec; unsigned int fde_count, array_count; struct eh_frame_array_ent *array; @@ -342,6 +320,10 @@ struct elf_link_hash_table when linking against or generating a shared object. */ bfd_boolean dynamic_sections_created; + /* True if this target has relocatable executables, so needs dynamic + section symbols. */ + bfd_boolean is_relocatable_executable; + /* The BFD used to hold special sections created by the linker. This will be the first BFD found which requires these sections to be created. */ @@ -349,13 +331,15 @@ struct elf_link_hash_table /* The value to use when initialising got.refcount/offset and plt.refcount/offset in an elf_link_hash_entry. Set to zero when - the values are refcounts. Set to init_offset in - size_dynamic_sections when the values may be offsets. */ - union gotplt_union init_refcount; + the values are refcounts. Set to init_got_offset/init_plt_offset + in size_dynamic_sections when the values may be offsets. */ + union gotplt_union init_got_refcount; + union gotplt_union init_plt_refcount; /* The value to use for got.refcount/offset and plt.refcount/offset when the values may be offsets. Normally (bfd_vma) -1. */ - union gotplt_union init_offset; + union gotplt_union init_got_offset; + union gotplt_union init_plt_offset; /* The number of symbols found in the link which must be put into the .dynsym section. */ @@ -373,9 +357,18 @@ struct elf_link_hash_table included in the link. */ struct bfd_link_needed_list *needed; + /* Sections in the output bfd that provides a section symbol + to be used by relocations emitted against local symbols. + Most targets will not use data_index_section. */ + asection *text_index_section; + asection *data_index_section; + /* The _GLOBAL_OFFSET_TABLE_ symbol. */ struct elf_link_hash_entry *hgot; + /* The _PROCEDURE_LINKAGE_TABLE_ symbol. */ + struct elf_link_hash_entry *hplt; + /* A pointer to information used to merge SEC_MERGE sections. */ void *merge_info; @@ -430,7 +423,7 @@ struct sym_sec_cache { bfd *abfd; unsigned long indx[LOCAL_SYM_CACHE_SIZE]; - asection *sec[LOCAL_SYM_CACHE_SIZE]; + unsigned int shndx[LOCAL_SYM_CACHE_SIZE]; }; /* Constant information held for an ELF backend. */ @@ -455,9 +448,11 @@ struct elf_size_info { (bfd *, const Elf_Internal_Phdr *, unsigned int); bfd_boolean (*write_shdrs_and_ehdr) (bfd *); + bfd_boolean (*checksum_contents) + (bfd * , void (*) (const void *, size_t, void *), void *); void (*write_relocs) (bfd *, asection *, void *); - void (*swap_symbol_in) + bfd_boolean (*swap_symbol_in) (bfd *, const void *, const void *, Elf_Internal_Sym *); void (*swap_symbol_out) (bfd *, const Elf_Internal_Sym *, void *, void *); @@ -540,6 +535,16 @@ struct bfd_elf_special_section int attr; }; +enum action_discarded + { + COMPLAIN = 1, + PRETEND = 2 + }; + +typedef asection * (*elf_gc_mark_hook_fn) + (asection *, struct bfd_link_info *, Elf_Internal_Rela *, + struct elf_link_hash_entry *, Elf_Internal_Sym *); + struct elf_backend_data { /* The architecture for this backend. */ @@ -548,9 +553,20 @@ struct elf_backend_data /* The ELF machine code (EM_xxxx) for this backend. */ int elf_machine_code; + /* EI_OSABI. */ + int elf_osabi; + /* The maximum page size for this backend. */ bfd_vma maxpagesize; + /* The minimum page size for this backend. An input object will not be + considered page aligned unless its sections are correctly aligned for + pages at least this large. May be smaller than maxpagesize. */ + bfd_vma minpagesize; + + /* The common page size for this backend. */ + bfd_vma commonpagesize; + /* The BFD flags applied to sections created for dynamic linking. */ flagword dynamic_sec_flags; @@ -620,17 +636,22 @@ struct elf_backend_data /* A function to handle unusual section types when creating BFD sections from ELF sections. */ bfd_boolean (*elf_backend_section_from_shdr) - (bfd *, Elf_Internal_Shdr *, const char *); + (bfd *, Elf_Internal_Shdr *, const char *, int); - /* A function to convert machine dependent section header flags to + /* A function to convert machine dependent ELF section header flags to BFD internal section header flags. */ bfd_boolean (*elf_backend_section_flags) (flagword *, const Elf_Internal_Shdr *); + /* A function that returns a struct containing ELF section flags and + type for the given BFD section. */ + const struct bfd_elf_special_section * (*get_sec_type_attr) + (bfd *, asection *); + /* A function to handle unusual program segment types when creating BFD sections from ELF program segments. */ bfd_boolean (*elf_backend_section_from_phdr) - (bfd *, Elf_Internal_Phdr *, int); + (bfd *, Elf_Internal_Phdr *, int, const char *); /* A function to set up the ELF section header for a BFD section in preparation for writing it out. This is where the flags and type @@ -679,6 +700,10 @@ struct elf_backend_data bfd_boolean (*elf_backend_omit_section_dynsym) (bfd *output_bfd, struct bfd_link_info *info, asection *osec); + /* Return TRUE if relocations of targets are compatible to the extent + that CHECK_RELOCS will properly process them. PR 4424. */ + bfd_boolean (*relocs_compatible) (const bfd_target *, const bfd_target *); + /* The CHECK_RELOCS function is called by the add_symbols phase of the ELF backend linker. It is called once for each section with relocs of an object file, just after the symbols for the object @@ -700,6 +725,13 @@ struct elf_backend_data bfd_boolean (*check_directives) (bfd *abfd, struct bfd_link_info *info); + /* The AS_NEEDED_CLEANUP function is called once per --as-needed + input file that was not needed by the add_symbols phase of the + ELF backend linker. The function must undo any target specific + changes in the symbol hash table. */ + bfd_boolean (*as_needed_cleanup) + (bfd *abfd, struct bfd_link_info *info); + /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend linker for every symbol which is defined by a dynamic object and referenced by a regular object. This is called after all the @@ -735,6 +767,11 @@ struct elf_backend_data bfd_boolean (*elf_backend_size_dynamic_sections) (bfd *output_bfd, struct bfd_link_info *info); + /* Set TEXT_INDEX_SECTION and DATA_INDEX_SECTION, the output sections + we keep to use as a base for relocs and symbols. */ + void (*elf_backend_init_index_section) + (bfd *output_bfd, struct bfd_link_info *info); + /* The RELOCATE_SECTION function is called by the ELF backend linker to handle the relocations for a section. @@ -762,8 +799,11 @@ struct elf_backend_data STB_LOCAL/STT_SECTION symbols specially. The output symbol is going to be the section symbol corresponding to the output section, which means that the addend must be adjusted - accordingly. */ - bfd_boolean (*elf_backend_relocate_section) + accordingly. + + Returns FALSE on error, TRUE on success, 2 if successful and + relocations should be written for this section. */ + int (*elf_backend_relocate_section) (bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd, asection *input_section, bfd_byte *contents, Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, asection **local_sections); @@ -801,18 +841,31 @@ struct elf_backend_data return the number of additional program segments which this BFD will need. It should return -1 on error. */ int (*elf_backend_additional_program_headers) - (bfd *); + (bfd *, struct bfd_link_info *); /* This function is called to modify an existing segment map in a backend specific fashion. */ bfd_boolean (*elf_backend_modify_segment_map) (bfd *, struct bfd_link_info *); + /* This function is called to modify program headers just before + they are written. */ + bfd_boolean (*elf_backend_modify_program_headers) + (bfd *, struct bfd_link_info *); + + /* This function is called during section garbage collection to + mark sections that define global symbols. */ + bfd_boolean (*gc_mark_dynamic_ref) + (struct elf_link_hash_entry *h, void *inf); + /* This function is called during section gc to discover the section a particular relocation refers to. */ - asection * (*gc_mark_hook) - (asection *sec, struct bfd_link_info *, Elf_Internal_Rela *, - struct elf_link_hash_entry *h, Elf_Internal_Sym *); + elf_gc_mark_hook_fn gc_mark_hook; + + /* This function, if defined, is called after the first gc marking pass + to allow the backend to mark additional sections. */ + bfd_boolean (*gc_mark_extra_sections) + (struct bfd_link_info *info, elf_gc_mark_hook_fn gc_mark_hook); /* This function, if defined, is called during the sweep phase of gc in order that a backend might update any data structures it might @@ -835,8 +888,16 @@ struct elf_backend_data /* This function, if defined, is called after all local symbols and global symbols converted to locals are emitted into the symtab - section. It allows the backend to emit special global symbols + section. It allows the backend to emit special local symbols not handled in the hash table. */ + bfd_boolean (*elf_backend_output_arch_local_syms) + (bfd *, struct bfd_link_info *, void *, + bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *, + struct elf_link_hash_entry *)); + + /* This function, if defined, is called after all symbols are emitted + into the symtab section. It allows the backend to emit special + global symbols not handled in the hash table. */ bfd_boolean (*elf_backend_output_arch_syms) (bfd *, struct bfd_link_info *, void *, bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *, @@ -848,7 +909,7 @@ struct elf_backend_data newly created and plt/got refcounts and dynamic indices should not be copied. */ void (*elf_backend_copy_indirect_symbol) - (const struct elf_backend_data *, struct elf_link_hash_entry *, + (struct bfd_link_info *, struct elf_link_hash_entry *, struct elf_link_hash_entry *); /* Modify any information related to dynamic linking such that the @@ -856,15 +917,26 @@ struct elf_backend_data void (*elf_backend_hide_symbol) (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean); + /* A function to do additional symbol fixup, called by + _bfd_elf_fix_symbol_flags. */ + bfd_boolean (*elf_backend_fixup_symbol) + (struct bfd_link_info *, struct elf_link_hash_entry *); + /* Merge the backend specific symbol attribute. */ void (*elf_backend_merge_symbol_attribute) (struct elf_link_hash_entry *, const Elf_Internal_Sym *, bfd_boolean, bfd_boolean); + /* Decide whether an undefined symbol is special and can be ignored. + This is the case for OPTIONAL symbols on IRIX. */ + bfd_boolean (*elf_backend_ignore_undef_symbol) + (struct elf_link_hash_entry *); + /* Emit relocations. Overrides default routine for emitting relocs, except during a relocatable link, or if all relocs are being emitted. */ bfd_boolean (*elf_backend_emit_relocs) - (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *); + (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *, + struct elf_link_hash_entry **); /* Count relocations. Not called for relocatable links or if all relocs are being preserved in the output. */ @@ -872,20 +944,18 @@ struct elf_backend_data (asection *, Elf_Internal_Rela *); /* This function, if defined, is called when an NT_PRSTATUS note is found - in a core file. */ + in a core file. */ bfd_boolean (*elf_backend_grok_prstatus) (bfd *, Elf_Internal_Note *); /* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO - note is found in a core file. */ + note is found in a core file. */ bfd_boolean (*elf_backend_grok_psinfo) (bfd *, Elf_Internal_Note *); - /* Functions to print VMAs. Special code to handle 64 bit ELF files. */ - void (* elf_backend_sprintf_vma) - (bfd *, char *, bfd_vma); - void (* elf_backend_fprintf_vma) - (bfd *, void *, bfd_vma); + /* This function, if defined, is called to write a note to a corefile. */ + char *(*elf_backend_write_core_note) + (bfd *abfd, char *buf, int *bufsiz, int note_type, ...); /* This function returns class of a reloc type. */ enum elf_reloc_type_class (*elf_backend_reloc_type_class) @@ -901,6 +971,17 @@ struct elf_backend_data bfd_boolean (*elf_backend_ignore_discarded_relocs) (asection *); + /* What to do when ld finds relocations against symbols defined in + discarded sections. */ + unsigned int (*action_discarded) + (asection *); + + /* This function returns the width of FDE pointers in bytes, or 0 if + that can't be determined for some reason. The default definition + goes by the bfd's EI_CLASS. */ + unsigned int (*elf_backend_eh_frame_address_size) + (bfd *, asection *); + /* These functions tell elf-eh-frame whether to attempt to turn absolute or lsda encodings into pc-relative ones. The default definition enables these transformations. */ @@ -922,7 +1003,7 @@ struct elf_backend_data /* This function, if defined, may write out the given section. Returns TRUE if it did so and FALSE if the caller should. */ bfd_boolean (*elf_backend_write_section) - (bfd *, asection *, bfd_byte *); + (bfd *, struct bfd_link_info *, asection *, bfd_byte *); /* The level of IRIX compatibility we're striving for. MIPS ELF specific function. */ @@ -940,12 +1021,42 @@ struct elf_backend_data see elf.c, elfcode.h. */ bfd *(*elf_backend_bfd_from_remote_memory) (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, - int (*target_read_memory) (bfd_vma vma, char *myaddr, int len)); + int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, int len)); /* This function is used by `_bfd_elf_get_synthetic_symtab'; see elf.c. */ bfd_vma (*plt_sym_val) (bfd_vma, const asection *, const arelent *); + /* Is symbol defined in common section? */ + bfd_boolean (*common_definition) (Elf_Internal_Sym *); + + /* Return a common section index for section. */ + unsigned int (*common_section_index) (asection *); + + /* Return a common section for section. */ + asection *(*common_section) (asection *); + + /* Return TRUE if we can merge 2 definitions. */ + bfd_boolean (*merge_symbol) (struct bfd_link_info *, + struct elf_link_hash_entry **, + struct elf_link_hash_entry *, + Elf_Internal_Sym *, asection **, + bfd_vma *, unsigned int *, + bfd_boolean *, bfd_boolean *, + bfd_boolean *, bfd_boolean *, + bfd_boolean *, bfd_boolean *, + bfd_boolean *, bfd_boolean *, + bfd *, asection **, + bfd_boolean *, bfd_boolean *, + bfd_boolean *, bfd_boolean *, + bfd *, asection **); + + /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ + bfd_boolean (*elf_hash_symbol) (struct elf_link_hash_entry *); + + /* Return TRUE if type is a function symbol type. */ + bfd_boolean (*is_function_type) (unsigned int type); + /* Used to handle bad SHF_LINK_ORDER input. */ bfd_error_handler_type link_order_error_handler; @@ -958,17 +1069,26 @@ struct elf_backend_data const struct elf_size_info *s; - /* An array of target specific special section map. */ + /* An array of target specific special sections. */ const struct bfd_elf_special_section *special_sections; - /* offset of the _GLOBAL_OFFSET_TABLE_ symbol from the start of the - .got section */ - bfd_vma got_symbol_offset; - /* The size in bytes of the header for the GOT. This includes the so-called reserved entries on some systems. */ bfd_vma got_header_size; + /* The vendor name to use for a processor-standard attributes section. */ + const char *obj_attrs_vendor; + + /* The section name to use for a processor-standard attributes section. */ + const char *obj_attrs_section; + + /* Return 1, 2 or 3 to indicate what type of arguments a + processor-specific tag takes. */ + int (*obj_attrs_arg_type) (int); + + /* The section type to use for an attributes section. */ + unsigned int obj_attrs_section_type; + /* This is TRUE if the linker should act like collect and gather global constructors and destructors by name. This is TRUE for MIPS ELF because the Irix 5 tools can not handle the .init @@ -1016,10 +1136,17 @@ struct elf_backend_data unsigned can_refcount : 1; unsigned want_got_sym : 1; unsigned want_dynbss : 1; - /* Targets which do not support physical addressing often require - that the p_paddr field in the section header to be set to zero. - This field indicates whether this behavior is required. */ + + /* Targets which do not support physical addressing often require + that the p_paddr field in the section header to be set to zero. + This field indicates whether this behavior is required. */ unsigned want_p_paddr_set_to_zero : 1; + + /* True if an object file lacking a .note.GNU-stack section + should be assumed to be requesting exec stack. At least one + other file in the link needs to have a .note.GNU-stack section + for a PT_GNU_STACK segment to be created. */ + unsigned default_execstack : 1; }; /* Information stored for each BFD section in an ELF file. This @@ -1044,8 +1171,7 @@ struct bfd_elf_section_data /* The number of relocations currently assigned to REL_HDR2. */ unsigned int rel_count2; - /* The ELF section number of this section. Only used for an output - file. */ + /* The ELF section number of this section. */ int this_idx; /* The ELF section number of the reloc section indicated by @@ -1089,19 +1215,19 @@ struct bfd_elf_section_data struct bfd_symbol *id; } group; - /* Optional information about section group; NULL if it doesn't - belongs to any section group. */ + /* For a member of a group, points to the SHT_GROUP section. + NULL for the SHT_GROUP section itself and non-group sections. */ asection *sec_group; - /* A linked list of sections in the group. Circular when used by - the linker. */ + /* A linked list of member sections in the group. Circular when used by + the linker. For the SHT_GROUP section, points at first member. */ asection *next_in_group; /* A pointer used for various section optimizations. */ void *sec_info; }; -#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd) +#define elf_section_data(sec) ((struct bfd_elf_section_data*)(sec)->used_by_bfd) #define elf_linked_to_section(sec) (elf_section_data(sec)->linked_to) #define elf_section_type(sec) (elf_section_data(sec)->this_hdr.sh_type) #define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags) @@ -1110,15 +1236,11 @@ struct bfd_elf_section_data #define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group) #define elf_sec_group(sec) (elf_section_data(sec)->sec_group) -/* Return TRUE if section has been discarded. */ -#define elf_discarded_section(sec) \ - (!bfd_is_abs_section (sec) \ - && bfd_is_abs_section ((sec)->output_section) \ - && (sec)->sec_info_type != ELF_INFO_TYPE_MERGE \ - && (sec)->sec_info_type != ELF_INFO_TYPE_JUST_SYMS) +#define xvec_get_elf_backend_data(xvec) \ + ((const struct elf_backend_data *) (xvec)->backend_data) #define get_elf_backend_data(abfd) \ - ((const struct elf_backend_data *) (abfd)->xvec->backend_data) + xvec_get_elf_backend_data ((abfd)->xvec) /* This struct is used to pass information to routines called via elf_link_hash_traverse which must return failure. */ @@ -1160,6 +1282,46 @@ struct elf_find_verdep_info bfd_boolean failed; }; +/* The maximum number of known object attributes for any target. */ +#define NUM_KNOWN_OBJ_ATTRIBUTES 32 + +/* The value of an object attribute. type & 1 indicates whether there + is an integer value; type & 2 indicates whether there is a string + value. */ + +typedef struct obj_attribute +{ + int type; + unsigned int i; + char *s; +} obj_attribute; + +typedef struct obj_attribute_list +{ + struct obj_attribute_list *next; + int tag; + obj_attribute attr; +} obj_attribute_list; + +/* Object attributes may either be defined by the processor ABI, index + OBJ_ATTR_PROC in the *_obj_attributes arrays, or be GNU-specific + (and possibly also processor-specific), index OBJ_ATTR_GNU. */ +#define OBJ_ATTR_PROC 0 +#define OBJ_ATTR_GNU 1 +#define OBJ_ATTR_FIRST OBJ_ATTR_PROC +#define OBJ_ATTR_LAST OBJ_ATTR_GNU + +/* The following object attribute tags are taken as generic, for all + targets and for "gnu" where there is no target standard. */ +enum +{ + Tag_NULL = 0, + Tag_File = 1, + Tag_Section = 2, + Tag_Symbol = 3, + Tag_compatibility = 32 +}; + /* Some private data is stashed away for future use using the tdata pointer in the bfd structure. */ @@ -1246,6 +1408,7 @@ struct elf_obj_tdata MIPS ELF linker. FIXME: We should figure out some way to only include this field for a MIPS ELF target. */ asection **local_stubs; + asection **local_call_stubs; /* Used to determine if PT_GNU_EH_FRAME segment header should be created. */ @@ -1263,9 +1426,6 @@ struct elf_obj_tdata /* Segment flags for the PT_GNU_STACK segment. */ unsigned int stack_flags; - /* Should the PT_GNU_RELRO segment be emitted? */ - bfd_boolean relro; - /* Symbol version definitions in external objects. */ Elf_Internal_Verdef *verdef; @@ -1297,6 +1457,20 @@ struct elf_obj_tdata /* Used to determine if the e_flags field has been initialized */ bfd_boolean flags_init; + + /* Symbol buffer. */ + void *symbuf; + + obj_attribute known_obj_attributes[2][NUM_KNOWN_OBJ_ATTRIBUTES]; + obj_attribute_list *other_obj_attributes[2]; + + /* Called at the end of _bfd_elf_write_object_contents if not NULL. */ + bfd_boolean (*after_write_object_contents) (bfd *); + void *after_write_object_contents_info; + + /* NT_GNU_BUILD_ID note type. */ + bfd_size_type build_id_size; + bfd_byte *build_id; }; #define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data) @@ -1326,6 +1500,12 @@ struct elf_obj_tdata #define elf_dyn_lib_class(bfd) (elf_tdata(bfd) -> dyn_lib_class) #define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab) #define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init) +#define elf_known_obj_attributes(bfd) (elf_tdata (bfd) -> known_obj_attributes) +#define elf_other_obj_attributes(bfd) (elf_tdata (bfd) -> other_obj_attributes) +#define elf_known_obj_attributes_proc(bfd) \ + (elf_known_obj_attributes (bfd) [OBJ_ATTR_PROC]) +#define elf_other_obj_attributes_proc(bfd) \ + (elf_other_obj_attributes (bfd) [OBJ_ATTR_PROC]) extern void _bfd_elf_swap_verdef_in (bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *); @@ -1358,7 +1538,7 @@ extern Elf_Internal_Sym *bfd_elf_get_elf_syms (bfd *, Elf_Internal_Shdr *, size_t, size_t, Elf_Internal_Sym *, void *, Elf_External_Sym_Shndx *); extern const char *bfd_elf_sym_name - (bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *); + (bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *, asection *); extern bfd_boolean _bfd_elf_copy_private_bfd_data (bfd *, bfd *); @@ -1367,15 +1547,8 @@ extern bfd_boolean _bfd_elf_print_private_bfd_data extern void bfd_elf_print_symbol (bfd *, void *, asymbol *, bfd_print_symbol_type); -#define elf_string_from_elf_strtab(abfd, strindex) \ - bfd_elf_string_from_elf_section (abfd, elf_elfheader(abfd)->e_shstrndx, \ - strindex) - -extern void _bfd_elf_sprintf_vma - (bfd *, char *, bfd_vma); -extern void _bfd_elf_fprintf_vma - (bfd *, void *, bfd_vma); - +extern unsigned int _bfd_elf_eh_frame_address_size + (bfd *, asection *); extern bfd_byte _bfd_elf_encode_eh_address (bfd *abfd, struct bfd_link_info *info, asection *osec, bfd_vma offset, asection *loc_sec, bfd_vma loc_offset, bfd_vma *encoded); @@ -1393,6 +1566,8 @@ extern bfd_vma _bfd_elf_section_offset extern unsigned long bfd_elf_hash (const char *); +extern unsigned long bfd_elf_gnu_hash + (const char *); extern bfd_reloc_status_type bfd_elf_generic_reloc (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); @@ -1403,7 +1578,7 @@ extern bfd_boolean bfd_elf_mkcorefile extern Elf_Internal_Shdr *bfd_elf_find_section (bfd *, char *); extern bfd_boolean _bfd_elf_make_section_from_shdr - (bfd *, Elf_Internal_Shdr *, const char *); + (bfd *, Elf_Internal_Shdr *, const char *, int); extern bfd_boolean _bfd_elf_make_section_from_phdr (bfd *, Elf_Internal_Phdr *, int, const char *); extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc @@ -1411,32 +1586,41 @@ extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create (bfd *); extern void _bfd_elf_link_hash_copy_indirect - (const struct elf_backend_data *, struct elf_link_hash_entry *, + (struct bfd_link_info *, struct elf_link_hash_entry *, struct elf_link_hash_entry *); extern void _bfd_elf_link_hash_hide_symbol (struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean); +extern bfd_boolean _bfd_elf_link_hash_fixup_symbol + (struct bfd_link_info *, struct elf_link_hash_entry *); extern bfd_boolean _bfd_elf_link_hash_table_init (struct elf_link_hash_table *, bfd *, struct bfd_hash_entry *(*) - (struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); + (struct bfd_hash_entry *, struct bfd_hash_table *, const char *), + unsigned int); extern bfd_boolean _bfd_elf_slurp_version_tables (bfd *, bfd_boolean); extern bfd_boolean _bfd_elf_merge_sections (bfd *, struct bfd_link_info *); +extern bfd_boolean _bfd_elf_match_sections_by_type + (bfd *, const asection *, bfd *, const asection *); extern bfd_boolean bfd_elf_is_group_section (bfd *, const struct bfd_section *); -extern bfd_boolean bfd_elf_discard_group - (bfd *, struct bfd_section *); extern void _bfd_elf_section_already_linked - (bfd *, struct bfd_section *); + (bfd *, struct bfd_section *, struct bfd_link_info *); extern void bfd_elf_set_group_contents (bfd *, asection *, void *); +extern asection *_bfd_elf_check_kept_section + (asection *, struct bfd_link_info *); extern void _bfd_elf_link_just_syms (asection *, struct bfd_link_info *); extern bfd_boolean _bfd_elf_copy_private_header_data (bfd *, bfd *); extern bfd_boolean _bfd_elf_copy_private_symbol_data (bfd *, asymbol *, bfd *, asymbol *); +#define _bfd_generic_init_private_section_data \ + _bfd_elf_init_private_section_data +extern bfd_boolean _bfd_elf_init_private_section_data + (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); extern bfd_boolean _bfd_elf_copy_private_section_data (bfd *, asection *, bfd *, asection *); extern bfd_boolean _bfd_elf_write_object_contents @@ -1476,16 +1660,23 @@ extern bfd_boolean _bfd_elf_set_arch_mach extern bfd_boolean _bfd_elf_find_nearest_line (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, unsigned int *); +extern bfd_boolean _bfd_elf_find_line + (bfd *, asymbol **, asymbol *, const char **, unsigned int *); +#define _bfd_generic_find_line _bfd_elf_find_line +extern bfd_boolean _bfd_elf_find_inliner_info + (bfd *, const char **, const char **, unsigned int *); #define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols #define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol extern int _bfd_elf_sizeof_headers - (bfd *, bfd_boolean); + (bfd *, struct bfd_link_info *); extern bfd_boolean _bfd_elf_new_section_hook (bfd *, asection *); extern bfd_boolean _bfd_elf_init_reloc_shdr (bfd *, Elf_Internal_Shdr *, asection *, bfd_boolean); +extern const struct bfd_elf_special_section *_bfd_elf_get_special_section + (const char *, const struct bfd_elf_special_section *, unsigned int); extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr - (bfd *, const char *); + (bfd *, asection *); /* If the target doesn't have reloc handling written yet: */ extern void _bfd_elf_no_info_to_howto @@ -1543,9 +1734,12 @@ extern bfd_boolean _bfd_elf_maybe_strip_eh_frame_hdr extern bfd_boolean _bfd_elf_merge_symbol (bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *, - asection **, bfd_vma *, struct elf_link_hash_entry **, bfd_boolean *, + asection **, bfd_vma *, unsigned int *, + struct elf_link_hash_entry **, bfd_boolean *, bfd_boolean *, bfd_boolean *, bfd_boolean *); +extern bfd_boolean _bfd_elf_hash_symbol (struct elf_link_hash_entry *); + extern bfd_boolean _bfd_elf_add_default_symbol (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, const char *, Elf_Internal_Sym *, asection **, bfd_vma *, @@ -1580,7 +1774,11 @@ extern bfd_boolean _bfd_elf_create_dynamic_sections (bfd *, struct bfd_link_info *); extern bfd_boolean _bfd_elf_create_got_section (bfd *, struct bfd_link_info *); -extern unsigned long _bfd_elf_link_renumber_dynsyms +extern struct elf_link_hash_entry *_bfd_elf_define_linkage_sym + (bfd *, struct bfd_link_info *, asection *, const char *); +extern void _bfd_elf_init_1_index_section + (bfd *, struct bfd_link_info *); +extern void _bfd_elf_init_2_index_sections (bfd *, struct bfd_link_info *); extern bfd_boolean _bfd_elfcore_make_pseudosection @@ -1595,7 +1793,8 @@ extern bfd_boolean _bfd_elf_link_size_reloc_section (bfd *, Elf_Internal_Shdr *, asection *); extern bfd_boolean _bfd_elf_link_output_relocs - (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *); + (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *, + struct elf_link_hash_entry **); extern bfd_boolean _bfd_elf_fix_symbol_flags (struct elf_link_hash_entry *, struct elf_info_failed *); @@ -1603,6 +1802,9 @@ extern bfd_boolean _bfd_elf_fix_symbol_flags extern bfd_boolean _bfd_elf_adjust_dynamic_symbol (struct elf_link_hash_entry *, void *); +extern bfd_boolean _bfd_elf_adjust_dynamic_copy + (struct elf_link_hash_entry *, asection *); + extern bfd_boolean _bfd_elf_link_sec_merge_syms (struct elf_link_hash_entry *, void *); @@ -1613,11 +1815,16 @@ extern bfd_boolean _bfd_elf_symbol_refs_local_p (struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean); extern bfd_boolean bfd_elf_match_symbols_in_sections - (asection *sec1, asection *sec2); + (asection *, asection *, struct bfd_link_info *); + +extern void bfd_elf_perform_complex_relocation + (bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma); -extern bfd_boolean _bfd_elf_setup_group_pointers +extern bfd_boolean _bfd_elf_setup_sections (bfd *); +extern void _bfd_elf_set_osabi (bfd * , struct bfd_link_info *); + extern const bfd_target *bfd_elf32_object_p (bfd *); extern const bfd_target *bfd_elf32_core_file_p @@ -1629,7 +1836,7 @@ extern int bfd_elf32_core_file_failing_signal extern bfd_boolean bfd_elf32_core_file_matches_executable_p (bfd *, bfd *); -extern void bfd_elf32_swap_symbol_in +extern bfd_boolean bfd_elf32_swap_symbol_in (bfd *, const void *, const void *, Elf_Internal_Sym *); extern void bfd_elf32_swap_symbol_out (bfd *, const Elf_Internal_Sym *, void *, void *); @@ -1655,6 +1862,8 @@ extern bfd_boolean bfd_elf32_write_shdrs_and_ehdr (bfd *); extern int bfd_elf32_write_out_phdrs (bfd *, const Elf_Internal_Phdr *, unsigned int); +extern bfd_boolean bfd_elf32_checksum_contents + (bfd * , void (*) (const void *, size_t, void *), void *); extern void bfd_elf32_write_relocs (bfd *, asection *, void *); extern bfd_boolean bfd_elf32_slurp_reloc_table @@ -1671,7 +1880,7 @@ extern int bfd_elf64_core_file_failing_signal extern bfd_boolean bfd_elf64_core_file_matches_executable_p (bfd *, bfd *); -extern void bfd_elf64_swap_symbol_in +extern bfd_boolean bfd_elf64_swap_symbol_in (bfd *, const void *, const void *, Elf_Internal_Sym *); extern void bfd_elf64_swap_symbol_out (bfd *, const Elf_Internal_Sym *, void *, void *); @@ -1697,11 +1906,19 @@ extern bfd_boolean bfd_elf64_write_shdrs_and_ehdr (bfd *); extern int bfd_elf64_write_out_phdrs (bfd *, const Elf_Internal_Phdr *, unsigned int); +extern bfd_boolean bfd_elf64_checksum_contents + (bfd * , void (*) (const void *, size_t, void *), void *); extern void bfd_elf64_write_relocs (bfd *, asection *, void *); extern bfd_boolean bfd_elf64_slurp_reloc_table (bfd *, asection *, asymbol **, bfd_boolean); +extern bfd_boolean _bfd_elf_default_relocs_compatible + (const bfd_target *, const bfd_target *); + +extern bfd_boolean _bfd_elf_relocs_compatible + (const bfd_target *, const bfd_target *); + extern struct elf_link_hash_entry *_bfd_elf_archive_symbol_lookup (bfd *, struct bfd_link_info *, const char *); extern bfd_boolean bfd_elf_link_add_symbols @@ -1715,8 +1932,25 @@ extern bfd_boolean bfd_elf_link_record_dynamic_symbol extern int bfd_elf_link_record_local_dynamic_symbol (struct bfd_link_info *, bfd *, long); +extern void bfd_elf_link_mark_dynamic_symbol + (struct bfd_link_info *, struct elf_link_hash_entry *, + Elf_Internal_Sym *); + extern bfd_boolean _bfd_elf_close_and_cleanup (bfd *); + +extern bfd_boolean _bfd_elf_common_definition + (Elf_Internal_Sym *); + +extern unsigned int _bfd_elf_common_section_index + (asection *); + +extern asection *_bfd_elf_common_section + (asection *); + +extern void _bfd_dwarf2_cleanup_debug_info + (bfd *); + extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn (bfd *, arelent *, struct bfd_symbol *, void *, asection *, bfd *, char **); @@ -1724,6 +1958,9 @@ extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn extern bfd_boolean bfd_elf_final_link (bfd *, struct bfd_link_info *); +extern bfd_boolean bfd_elf_gc_mark_dynamic_ref_symbol + (struct elf_link_hash_entry *h, void *inf); + extern bfd_boolean bfd_elf_gc_sections (bfd *, struct bfd_link_info *); @@ -1733,6 +1970,10 @@ extern bfd_boolean bfd_elf_gc_record_vtinherit extern bfd_boolean bfd_elf_gc_record_vtentry (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma); +extern asection *_bfd_elf_gc_mark_hook + (asection *, struct bfd_link_info *, Elf_Internal_Rela *, + struct elf_link_hash_entry *, Elf_Internal_Sym *); + extern bfd_boolean _bfd_elf_gc_mark (struct bfd_link_info *, asection *, asection * (*) (asection *, struct bfd_link_info *, Elf_Internal_Rela *, @@ -1747,10 +1988,14 @@ extern bfd_boolean bfd_elf_gc_common_final_link extern bfd_boolean bfd_elf_reloc_symbol_deleted_p (bfd_vma, void *); -extern struct elf_segment_map * -_bfd_elf_make_dynamic_segment +extern struct elf_segment_map * _bfd_elf_make_dynamic_segment (bfd *, asection *); +extern bfd_boolean _bfd_elf_map_sections_to_segments + (bfd *, struct bfd_link_info *); + +extern bfd_boolean _bfd_elf_is_function_type (unsigned int); + /* Exported interface for writing elf corefile notes. */ extern char *elfcore_write_note (bfd *, char *, int *, const char *, int, const void *, int); @@ -1769,10 +2014,33 @@ extern char *elfcore_write_lwpstatus extern bfd *_bfd_elf32_bfd_from_remote_memory (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, - int (*target_read_memory) (bfd_vma, char *, int)); + int (*target_read_memory) (bfd_vma, bfd_byte *, int)); extern bfd *_bfd_elf64_bfd_from_remote_memory (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep, - int (*target_read_memory) (bfd_vma, char *, int)); + int (*target_read_memory) (bfd_vma, bfd_byte *, int)); + +extern bfd_vma bfd_elf_obj_attr_size (bfd *); +extern void bfd_elf_set_obj_attr_contents (bfd *, bfd_byte *, bfd_vma); +extern int bfd_elf_get_obj_attr_int (bfd *, int, int); +extern void bfd_elf_add_obj_attr_int (bfd *, int, int, unsigned int); +#define bfd_elf_add_proc_attr_int(BFD, TAG, VALUE) \ + bfd_elf_add_obj_attr_int ((BFD), OBJ_ATTR_PROC, (TAG), (VALUE)) +extern void bfd_elf_add_obj_attr_string (bfd *, int, int, const char *); +#define bfd_elf_add_proc_attr_string(BFD, TAG, VALUE) \ + bfd_elf_add_obj_attr_string ((BFD), OBJ_ATTR_PROC, (TAG), (VALUE)) +extern void bfd_elf_add_obj_attr_compat (bfd *, int, unsigned int, + const char *); +#define bfd_elf_add_proc_attr_compat(BFD, INTVAL, STRVAL) \ + bfd_elf_add_obj_attr_compat ((BFD), OBJ_ATTR_PROC, (INTVAL), (STRVAL)) + +extern char *_bfd_elf_attr_strdup (bfd *, const char *); +extern void _bfd_elf_copy_obj_attributes (bfd *, bfd *); +extern int _bfd_elf_obj_attrs_arg_type (bfd *, int, int); +extern void _bfd_elf_parse_attributes (bfd *, Elf_Internal_Shdr *); +extern bfd_boolean _bfd_elf_merge_object_attributes (bfd *, bfd *); + +/* Large common section. */ +extern asection _bfd_elf_large_com_section; /* SH ELF specific routine. */ @@ -1830,7 +2098,7 @@ extern bfd_boolean _sh_elf_set_mach_from_flags else if (info->unresolved_syms_in_objects == RM_IGNORE \ && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \ ; \ - else \ + else if (!info->relocatable) \ { \ bfd_boolean err; \ err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \ @@ -1846,4 +2114,9 @@ extern bfd_boolean _sh_elf_set_mach_from_flags } \ while (0) +/* Will a symbol be bound to the the definition within the shared + library, if any. */ +#define SYMBOLIC_BIND(INFO, H) \ + ((INFO)->symbolic || ((INFO)->dynamic && !(H)->dynamic)) + #endif /* _LIBELF_H_ */