X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Flibecoff.h;h=2f7f930a6aa079d34f6496b09d81eed031f8c96e;hb=595d3787e9cbedbceb6182f873a4774707c0e74f;hp=84349f0bd221c3875ba894b1aa6788ec21716530;hpb=aac6b32f3129e8a9b2856fd3fb80c4613bddd455;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/libecoff.h b/bfd/libecoff.h index 84349f0bd2..2f7f930a6a 100644 --- a/bfd/libecoff.h +++ b/bfd/libecoff.h @@ -1,22 +1,23 @@ /* BFD ECOFF object file private structure. - Copyright (C) 1993 Free Software Foundation, Inc. + Copyright (C) 1993-2019 Free Software Foundation, Inc. Written by Ian Lance Taylor, Cygnus Support. -This file is part of BFD, the Binary File Descriptor library. + 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 -(at your option) any later version. + 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 3 of the License, or + (at your option) any later version. -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. + 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 this program; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ #include "bfdlink.h" @@ -43,33 +44,42 @@ 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. */ bfd_size_type external_reloc_size; /* Reloc swapping functions. */ - void (*swap_reloc_in) PARAMS ((bfd *, PTR, struct internal_reloc *)); - void (*swap_reloc_out) PARAMS ((bfd *, const struct internal_reloc *, PTR)); + void (*swap_reloc_in) (bfd *, void *, struct internal_reloc *); + void (*swap_reloc_out) (bfd *, const struct internal_reloc *, void *); /* 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) + (bfd *, const struct internal_reloc *, arelent *); + void (*adjust_reloc_out) + (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) + (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, void *); + /* Do final adjustments to filehdr and aouthdr. */ + bfd_boolean (*adjust_headers) + (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) (bfd *, file_ptr); }; +/* ECOFF targets don't support COFF long section names, so this + macro is provided to use as an initialiser for the related + members of the embedded bfd_coff_backend_data struct. */ +#define ECOFF_NO_LONG_SECTION_NAMES (FALSE), _bfd_ecoff_no_long_sections + /* This is the target specific information kept for ECOFF files. */ #define ecoff_data(abfd) ((abfd)->tdata.ecoff_obj_data) @@ -80,7 +90,7 @@ 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 +104,7 @@ 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. @@ -108,7 +118,7 @@ typedef struct ecoff_tdata struct ecoff_debug_info debug_info; /* The unswapped ECOFF symbolic information. */ - PTR raw_syments; + void * raw_syments; /* The canonical BFD symbols. */ struct ecoff_symbol_struct *canonical_symbols; @@ -121,8 +131,22 @@ typedef struct ecoff_tdata linking. */ asection **symndx_to_section; - /* True if this BFD was written by the backend linker. */ - boolean linker; + /* 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; @@ -136,59 +160,39 @@ 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 the value of the local field above. */ - PTR native; + void * 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, or a switch table entry - which is the difference of two .text locations; this addend - arises because the branch or difference 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 or - switch table entries 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. */ @@ -220,94 +224,125 @@ struct ecoff_link_hash_table }; /* Make an ECOFF object. */ -extern boolean ecoff_mkobject PARAMS ((bfd *)); +extern bfd_boolean _bfd_ecoff_mkobject (bfd *); /* Read in the ECOFF symbolic debugging information. */ -extern boolean ecoff_slurp_symbolic_info PARAMS ((bfd *, asection *, - struct ecoff_debug_info *)); +extern bfd_boolean _bfd_ecoff_slurp_symbolic_info + (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)); - -extern boolean ecoff_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); -#define ecoff_bfd_copy_private_section_data \ +extern bfd_boolean _bfd_ecoff_write_object_contents (bfd *); + +#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 + (bfd *, asection *); +extern bfd_boolean _bfd_ecoff_get_section_contents + (bfd *, asection *, void * location, file_ptr, bfd_size_type); + +#define _bfd_ecoff_bfd_link_split_section _bfd_generic_link_split_section +#define _bfd_ecoff_bfd_link_check_relocs _bfd_generic_link_check_relocs + +extern bfd_boolean _bfd_ecoff_bfd_copy_private_bfd_data + (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 (bfd *); +#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 + (bfd *, unsigned int, struct orl *, unsigned int, int); +#define _bfd_ecoff_read_ar_hdr _bfd_generic_read_ar_hdr +#define _bfd_ecoff_write_ar_hdr _bfd_generic_write_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_bool_bfd_true +#define _bfd_ecoff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false + +extern long _bfd_ecoff_get_symtab_upper_bound (bfd *); +extern long _bfd_ecoff_canonicalize_symtab (bfd *, asymbol **); +extern asymbol *_bfd_ecoff_make_empty_symbol (bfd *); +extern void _bfd_ecoff_print_symbol + (bfd *, void *, asymbol *, bfd_print_symbol_type); +extern void _bfd_ecoff_get_symbol_info + (bfd *, asymbol *, symbol_info *); +#define _bfd_ecoff_get_symbol_version_string \ + _bfd_nosymbols_get_symbol_version_string +extern bfd_boolean _bfd_ecoff_bfd_is_local_label_name + (bfd *, const char *); +#define _bfd_ecoff_get_lineno _bfd_nosymbols_get_lineno +extern bfd_boolean _bfd_ecoff_find_nearest_line + (bfd *, asymbol **, asection *, bfd_vma, + const char **, const char **, unsigned int *, unsigned int *); +#define _bfd_ecoff_find_line _bfd_nosymbols_find_line +#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_find_inliner_info _bfd_nosymbols_find_inliner_info + +#define _bfd_ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound +extern long _bfd_ecoff_canonicalize_reloc + (bfd *, asection *, arelent **, asymbol **); /* 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 + (bfd *, enum bfd_architecture, unsigned long); +extern bfd_boolean _bfd_ecoff_set_section_contents + (bfd *, asection *, const void * location, file_ptr, bfd_size_type); -extern int ecoff_sizeof_headers PARAMS ((bfd *abfd, boolean reloc)); +extern int _bfd_ecoff_sizeof_headers (bfd *, struct bfd_link_info *); /* 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 - PARAMS ((bfd *)); -extern boolean ecoff_bfd_link_add_symbols - PARAMS ((bfd *, struct bfd_link_info *)); -extern boolean ecoff_bfd_final_link PARAMS ((bfd *, struct bfd_link_info *)); +extern struct bfd_link_hash_table *_bfd_ecoff_bfd_link_hash_table_create + (bfd *); +extern bfd_boolean _bfd_ecoff_bfd_link_add_symbols + (bfd *, struct bfd_link_info *); +#define _bfd_ecoff_bfd_link_just_syms _bfd_generic_link_just_syms +#define _bfd_ecoff_bfd_copy_link_hash_symbol_type \ + _bfd_generic_copy_link_hash_symbol_type +extern bfd_boolean _bfd_ecoff_bfd_final_link + (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 \ - ((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 void * _bfd_ecoff_mkobject_hook (bfd *, void *, void *); +extern void _bfd_ecoff_set_alignment_hook + (bfd *, asection *, void *); +extern bfd_boolean _bfd_ecoff_set_arch_mach_hook + (bfd *, void *); +extern bfd_boolean _bfd_ecoff_no_long_sections + (bfd *abfd, int enable); +extern bfd_boolean _bfd_ecoff_styp_to_sec_flags + (bfd *, void *, const char *, asection *, flagword *); +extern bfd_boolean _bfd_ecoff_slurp_symbol_table (bfd *); + +/* 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 + (int, const struct tir_ext *, TIR *); +extern void _bfd_ecoff_swap_tir_out + (int, const TIR *, struct tir_ext *); +extern void _bfd_ecoff_swap_rndx_in + (int, const struct rndx_ext *, RNDXR *); +extern void _bfd_ecoff_swap_rndx_out + (int, const RNDXR *, struct rndx_ext *);