X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Flibecoff.h;h=b809f3a06618fcadc66257f68bbc737efba2a9ab;hb=80fccad2d4ce82a2ed9a5d8d081eb2daefa09f9d;hp=f4b8f5eea24a6047e19e183a84135ee274ef7212;hpb=6812b6077e4a09eab08458428f09c28ec58fc514;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/libecoff.h b/bfd/libecoff.h index f4b8f5eea2..b809f3a066 100644 --- a/bfd/libecoff.h +++ b/bfd/libecoff.h @@ -1,5 +1,6 @@ /* BFD ECOFF object file private structure. - Copyright (C) 1993 Free Software Foundation, Inc. + Copyright 1993, 1994, 1995, 1996, 1999, 2001, 2002, 2003, 2004 + Free Software Foundation, Inc. Written by Ian Lance Taylor, Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -16,7 +17,7 @@ GNU General Public License for more details. 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfdlink.h" @@ -43,14 +44,14 @@ struct ecoff_backend_data /* The page boundary used to align sections in a demand-paged executable file. E.g., 0x1000. */ bfd_vma round; - /* True if the .rdata section is part of the text segment, as on the - Alpha. False if .rdata is part of the data segment, as on the + /* TRUE if the .rdata section is part of the text segment, as on the + Alpha. FALSE if .rdata is part of the data segment, as on the MIPS. */ - boolean rdata_in_text; + bfd_boolean rdata_in_text; /* Bitsize of constructor entries. */ unsigned int constructor_bitsize; /* Reloc to use for constructor entries. */ - CONST struct reloc_howto_struct *constructor_reloc; + reloc_howto_type *constructor_reloc; /* How to swap debugging information. */ struct ecoff_debug_swap debug_swap; /* External reloc size. */ @@ -59,15 +60,21 @@ struct ecoff_backend_data void (*swap_reloc_in) PARAMS ((bfd *, PTR, struct internal_reloc *)); void (*swap_reloc_out) PARAMS ((bfd *, const struct internal_reloc *, PTR)); /* Backend reloc tweaking. */ - void (*adjust_reloc_in) PARAMS ((bfd *, const struct internal_reloc *, - arelent *)); - void (*adjust_reloc_out) PARAMS ((bfd *, const arelent *, - struct internal_reloc *)); + void (*adjust_reloc_in) + PARAMS ((bfd *, const struct internal_reloc *, arelent *)); + void (*adjust_reloc_out) + PARAMS ((bfd *, const arelent *, struct internal_reloc *)); /* Relocate section contents while linking. */ - boolean (*relocate_section) PARAMS ((bfd *output_bfd, struct bfd_link_info *, - bfd *input_bfd, asection *input_section, - bfd_byte *contents, - PTR external_relocs)); + bfd_boolean (*relocate_section) + PARAMS ((bfd *output_bfd, struct bfd_link_info *, bfd *input_bfd, + asection *input_section, bfd_byte *contents, + PTR external_relocs)); + /* Do final adjustments to filehdr and aouthdr. */ + bfd_boolean (*adjust_headers) + PARAMS ((bfd *, struct internal_filehdr *, struct internal_aouthdr *)); + /* Read an element from an archive at a given file position. This + is needed because OSF/1 3.2 uses a weird archive format. */ + bfd *(*get_elt_at_filepos) PARAMS ((bfd *, file_ptr)); }; /* This is the target specific information kept for ECOFF files. */ @@ -80,7 +87,7 @@ typedef struct ecoff_tdata ecoff_compute_section_file_positions. */ file_ptr reloc_filepos; - /* The symbol table file position, set by ecoff_mkobject_hook. */ + /* The symbol table file position, set by _bfd_ecoff_mkobject_hook. */ file_ptr sym_filepos; /* The start and end of the text segment. Only valid for an @@ -94,7 +101,7 @@ typedef struct ecoff_tdata /* The maximum size of objects to optimize using gp. This is typically set by the -G option to the compiler, assembler or linker. */ - int gp_size; + unsigned int gp_size; /* The register masks. When linking, all the masks found in the input files are combined into the masks of the output file. @@ -121,6 +128,23 @@ typedef struct ecoff_tdata linking. */ asection **symndx_to_section; + /* TRUE if this BFD was written by the backend linker. */ + bfd_boolean linker; + + /* TRUE if a warning that multiple global pointer values are + needed in the output binary was issued already. */ + bfd_boolean issued_multiple_gp_warning; + + /* Used by find_nearest_line entry point. The structure could be + included directly in this one, but there's no point to wasting + the memory just for the infrequently called find_nearest_line. */ + struct ecoff_find_line *find_line_info; + + /* Whether the .rdata section is in the text segment for this + particular ECOFF file. This is not valid until + ecoff_compute_section_file_positions is called. */ + bfd_boolean rdata_in_text; + } ecoff_data_type; /* Each canonical asymbol really looks like this. */ @@ -133,8 +157,8 @@ typedef struct ecoff_symbol_struct /* The fdr for this symbol. */ FDR *fdr; - /* true if this is a local symbol rather than an external one. */ - boolean local; + /* TRUE if this is a local symbol rather than an external one. */ + bfd_boolean local; /* A pointer to the unswapped hidden information for this symbol. This is either a struct sym_ext or a struct ext_ext, depending on @@ -142,47 +166,30 @@ typedef struct ecoff_symbol_struct PTR native; } ecoff_symbol_type; -/* We take the address of the first element of a asymbol to ensure that the +/* We take the address of the first element of an asymbol to ensure that the macro is only ever applied to an asymbol. */ #define ecoffsymbol(asymbol) ((ecoff_symbol_type *) (&((asymbol)->the_bfd))) -/* This is a hack borrowed from coffcode.h; we need to save the index - of an external symbol when we write it out so that can set the - symbol index correctly when we write out the relocs. */ -#define ecoff_get_sym_index(symbol) ((unsigned long) (symbol)->udata) -#define ecoff_set_sym_index(symbol, idx) ((symbol)->udata = (PTR) (idx)) - -/* When generating MIPS embedded PIC code, the linker relaxes the code - to turn PC relative branches into longer code sequences when the PC - relative branch is out of range. This involves reading the relocs - in bfd_relax_section as well as in bfd_final_link, and requires the - code to keep track of which relocs have been expanded. A pointer - to this structure is put in the used_by_bfd pointer of a section to - keep track of this information. The user_by_bfd pointer will be - NULL if the information was not needed. */ +/* We need to save the index of an external symbol when we write it + out so that can set the symbol index correctly when we write out + the relocs. */ +#define ecoff_get_sym_index(symbol) ((symbol)->udata.i) +#define ecoff_set_sym_index(symbol, idx) ((symbol)->udata.i = (idx)) + +/* A pointer to this structure is put in the used_by_bfd pointer of + a section to keep track of any per-section data. + The user_by_bfd pointer will be NULL if the information was not + needed. */ struct ecoff_section_tdata { - /* The unswapped relocs for this section. These are stored in - memory so the input file does not have to be read twice. */ - PTR external_relocs; - - /* The contents of the section. These bytes may or may not be saved - in memory, but if it is this is a pointer to them. */ - bfd_byte *contents; - - /* Offset adjustments for PC relative branches. A number other than - 1 is an addend for a PC relative branch; this addend arises because - it crosses one or more branches which were expanded into a larger - code sequence. A 1 means that this branch was itself expanded into - a larger code sequence. 1 is not a possible offset, since all - offsets must be multiples of the instruction size, which is 4; - also, the only relocs with non-zero offsets will be PC relative - branches within the same object file. If this field is NULL, no - branches were expanded and no offsets are required. Otherwise - there are as many entries as there are relocs in the section, and - the entry for any reloc that is not PC relative is zero. */ - long *offsets; + /* When producing an executable (i.e., final, non-relocatable link) + on the Alpha, we may need to use multiple global pointer values + to span the entire .lita section. In essence, we allow each + input .lita section to have its own gp value. To support this, + we need to keep track of the gp values that we picked for each + input .lita section . */ + bfd_vma gp; }; /* An accessor macro for the ecoff_section_tdata structure. */ @@ -200,6 +207,10 @@ struct ecoff_link_hash_entry bfd *abfd; /* ECOFF external symbol information. */ EXTR esym; + /* Nonzero if this symbol has been written out. */ + char written; + /* Nonzero if this symbol was referred to as small undefined. */ + char small; }; /* ECOFF linker hash table. */ @@ -210,93 +221,117 @@ struct ecoff_link_hash_table }; /* Make an ECOFF object. */ -extern boolean ecoff_mkobject PARAMS ((bfd *)); +extern bfd_boolean _bfd_ecoff_mkobject PARAMS ((bfd *)); /* Read in the ECOFF symbolic debugging information. */ -extern boolean ecoff_slurp_symbolic_info PARAMS ((bfd *)); +extern bfd_boolean _bfd_ecoff_slurp_symbolic_info + PARAMS ((bfd *, asection *, struct ecoff_debug_info *)); /* Generic ECOFF BFD backend vectors. */ -extern boolean ecoff_write_object_contents PARAMS ((bfd *abfd)); -extern bfd_target *ecoff_archive_p PARAMS ((bfd *abfd)); - -#define ecoff_close_and_cleanup _bfd_generic_close_and_cleanup -#define ecoff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info -extern boolean ecoff_new_section_hook PARAMS ((bfd *abfd, - asection *section)); -extern boolean ecoff_get_section_contents PARAMS ((bfd *abfd, - asection *section, - PTR location, - file_ptr offset, - bfd_size_type count)); - -#define ecoff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data -#define ecoff_bfd_copy_private_section_data \ +extern bfd_boolean _bfd_ecoff_write_object_contents PARAMS ((bfd *abfd)); +extern const bfd_target *_bfd_ecoff_archive_p PARAMS ((bfd *abfd)); + +#define _bfd_ecoff_close_and_cleanup _bfd_generic_close_and_cleanup +#define _bfd_ecoff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info +extern bfd_boolean _bfd_ecoff_new_section_hook + PARAMS ((bfd *, asection *)); +extern bfd_boolean _bfd_ecoff_get_section_contents + PARAMS ((bfd *, asection *, PTR location, file_ptr, bfd_size_type)); + +#define _bfd_ecoff_bfd_link_split_section _bfd_generic_link_split_section + +extern bfd_boolean _bfd_ecoff_bfd_copy_private_bfd_data + PARAMS ((bfd *, bfd *)); +#define _bfd_ecoff_bfd_copy_private_section_data \ _bfd_generic_bfd_copy_private_section_data -extern boolean ecoff_slurp_armap PARAMS ((bfd *abfd)); -#define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table -#define ecoff_truncate_arname bfd_dont_truncate_arname -extern boolean ecoff_write_armap PARAMS ((bfd *abfd, unsigned int elength, - struct orl *map, - unsigned int orl_count, - int stridx)); -#define ecoff_openr_next_archived_file bfd_generic_openr_next_archived_file -#define ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt - -extern long ecoff_get_symtab_upper_bound PARAMS ((bfd *abfd)); -extern long ecoff_get_symtab PARAMS ((bfd *abfd, asymbol **alocation)); -extern asymbol *ecoff_make_empty_symbol PARAMS ((bfd *abfd)); -extern void ecoff_print_symbol PARAMS ((bfd *abfd, PTR filep, - asymbol *symbol, - bfd_print_symbol_type how)); -extern void ecoff_get_symbol_info PARAMS ((bfd *abfd, - asymbol *symbol, - symbol_info *ret)); -#define ecoff_bfd_is_local_label bfd_generic_is_local_label -#define ecoff_get_lineno _bfd_nosymbols_get_lineno -extern boolean ecoff_find_nearest_line PARAMS ((bfd *abfd, - asection *section, - asymbol **symbols, - bfd_vma offset, - CONST char **filename_ptr, - CONST char **fnname_ptr, - unsigned int *retline_ptr)); -#define ecoff_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol - -#define ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound -extern long ecoff_canonicalize_reloc PARAMS ((bfd *abfd, - asection *section, - arelent **relptr, - asymbol **symbols)); +#define _bfd_ecoff_bfd_copy_private_symbol_data \ + _bfd_generic_bfd_copy_private_symbol_data + +#define _bfd_ecoff_bfd_copy_private_header_data \ + _bfd_generic_bfd_copy_private_header_data + +#define _bfd_ecoff_bfd_print_private_bfd_data \ + _bfd_generic_bfd_print_private_bfd_data + +#define _bfd_ecoff_bfd_merge_private_bfd_data \ + _bfd_generic_bfd_merge_private_bfd_data + +#define _bfd_ecoff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags +extern bfd_boolean _bfd_ecoff_slurp_armap PARAMS ((bfd *abfd)); +#define _bfd_ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table +#define _bfd_ecoff_construct_extended_name_table \ + _bfd_archive_bsd_construct_extended_name_table +#define _bfd_ecoff_truncate_arname bfd_dont_truncate_arname +extern bfd_boolean _bfd_ecoff_write_armap + PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); +#define _bfd_ecoff_read_ar_hdr _bfd_generic_read_ar_hdr +#define _bfd_ecoff_openr_next_archived_file \ + bfd_generic_openr_next_archived_file +#define _bfd_ecoff_get_elt_at_index _bfd_generic_get_elt_at_index +#define _bfd_ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt +#define _bfd_ecoff_update_armap_timestamp bfd_true + +extern long _bfd_ecoff_get_symtab_upper_bound PARAMS ((bfd *abfd)); +extern long _bfd_ecoff_canonicalize_symtab PARAMS ((bfd *abfd, asymbol **alocation)); +extern asymbol *_bfd_ecoff_make_empty_symbol PARAMS ((bfd *abfd)); +extern void _bfd_ecoff_print_symbol + PARAMS ((bfd *, PTR filep, asymbol *, bfd_print_symbol_type)); +extern void _bfd_ecoff_get_symbol_info + PARAMS ((bfd *, asymbol *, symbol_info *)); +extern bfd_boolean _bfd_ecoff_bfd_is_local_label_name + PARAMS ((bfd *, const char *)); +#define _bfd_ecoff_get_lineno _bfd_nosymbols_get_lineno +extern bfd_boolean _bfd_ecoff_find_nearest_line + PARAMS ((bfd *, asection *, asymbol **, bfd_vma offset, + const char **filename_ptr, const char **fnname_ptr, + unsigned int *retline_ptr)); +#define _bfd_ecoff_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol +#define _bfd_ecoff_read_minisymbols _bfd_generic_read_minisymbols +#define _bfd_ecoff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol + +#define _bfd_ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound +extern long _bfd_ecoff_canonicalize_reloc + PARAMS ((bfd *, asection *, arelent **, asymbol **symbols)); /* ecoff_bfd_reloc_type_lookup defined by backend. */ -extern boolean ecoff_set_arch_mach PARAMS ((bfd *abfd, - enum bfd_architecture arch, - unsigned long machine)); -extern boolean ecoff_set_section_contents PARAMS ((bfd *abfd, - asection *section, - PTR location, - file_ptr offset, - bfd_size_type count)); +extern bfd_boolean _bfd_ecoff_set_arch_mach + PARAMS ((bfd *, enum bfd_architecture, unsigned long)); +extern bfd_boolean _bfd_ecoff_set_section_contents + PARAMS ((bfd *, asection *, const PTR location, file_ptr, bfd_size_type)); -extern int ecoff_sizeof_headers PARAMS ((bfd *abfd, boolean reloc)); +extern int _bfd_ecoff_sizeof_headers PARAMS ((bfd *abfd, bfd_boolean reloc)); /* ecoff_bfd_get_relocated_section_contents defined by backend. */ /* ecoff_bfd_relax_section defined by backend. */ -extern struct bfd_link_hash_table *ecoff_bfd_link_hash_table_create +extern struct bfd_link_hash_table *_bfd_ecoff_bfd_link_hash_table_create PARAMS ((bfd *)); -extern boolean ecoff_bfd_link_add_symbols +#define _bfd_ecoff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free +extern bfd_boolean _bfd_ecoff_bfd_link_add_symbols + PARAMS ((bfd *, struct bfd_link_info *)); +#define _bfd_ecoff_bfd_link_just_syms _bfd_generic_link_just_syms +extern bfd_boolean _bfd_ecoff_bfd_final_link PARAMS ((bfd *, struct bfd_link_info *)); -extern boolean ecoff_bfd_final_link PARAMS ((bfd *, struct bfd_link_info *)); /* Hook functions for the generic COFF section reading code. */ -extern PTR ecoff_mkobject_hook PARAMS ((bfd *, PTR filehdr, PTR aouthdr)); -extern asection *ecoff_make_section_hook PARAMS ((bfd *abfd, char *name)); -#define ecoff_set_alignment_hook \ +extern PTR _bfd_ecoff_mkobject_hook PARAMS ((bfd *, PTR filehdr, PTR aouthdr)); +#define _bfd_ecoff_set_alignment_hook \ ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) -extern boolean ecoff_set_arch_mach_hook PARAMS ((bfd *abfd, PTR filehdr)); -extern long ecoff_sec_to_styp_flags PARAMS ((CONST char *name, - flagword flags)); -extern flagword ecoff_styp_to_sec_flags PARAMS ((bfd *abfd, PTR hdr)); -extern boolean ecoff_slurp_symbol_table PARAMS ((bfd *abfd)); +extern bfd_boolean _bfd_ecoff_set_arch_mach_hook + PARAMS ((bfd *abfd, PTR filehdr)); +extern bfd_boolean _bfd_ecoff_styp_to_sec_flags + PARAMS ((bfd *, PTR, const char *, asection *, flagword *)); +extern bfd_boolean _bfd_ecoff_slurp_symbol_table PARAMS ((bfd *abfd)); + +/* ECOFF auxiliary information swapping routines. These are the same + for all ECOFF targets, so they are defined in ecofflink.c. */ + +extern void _bfd_ecoff_swap_tir_in + PARAMS ((int, const struct tir_ext *, TIR *)); +extern void _bfd_ecoff_swap_tir_out + PARAMS ((int, const TIR *, struct tir_ext *)); +extern void _bfd_ecoff_swap_rndx_in + PARAMS ((int, const struct rndx_ext *, RNDXR *)); +extern void _bfd_ecoff_swap_rndx_out + PARAMS ((int, const RNDXR *, struct rndx_ext *));