X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Flibcoff.h;h=0bad48b372ed8d0e8a6eb5e76479e22baab7214b;hb=75cc718903a22a68fc0db87f5976e868822ff4e5;hp=b9fe260153a88a05fa97ef174154aa0a0e1ba220;hpb=d6f41a7d3e56c2b8467f39cd05283649050c09cc;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/libcoff.h b/bfd/libcoff.h index b9fe260153..0bad48b372 100644 --- a/bfd/libcoff.h +++ b/bfd/libcoff.h @@ -1,7 +1,11 @@ /* BFD COFF object file private structure. - Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc. + Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 + Free Software Foundation, Inc. Written by Cygnus Support. +** NOTE: libcoff.h is a GENERATED file. Don't change it; instead, +** change libcoff-in.h or coffcode.h. + This file is part of BFD, the Binary File Descriptor library. This program is free software; you can redistribute it and/or modify @@ -52,7 +56,7 @@ typedef struct coff_tdata file_ptr sym_filepos; struct coff_ptr_struct *raw_syments; - unsigned int raw_syment_count; + unsigned long raw_syment_count; /* These are only valid once writing has begun */ long int relocbase; @@ -89,6 +93,17 @@ typedef struct coff_tdata int *local_toc_sym_map; struct bfd_link_info *link_info; + + /* Used by coff_find_nearest_line. */ + PTR line_info; + + /* The timestamp from the COFF file header. */ + long timestamp; + + /* Copy of some of the f_flags bits in the COFF filehdr structure, + used by ARM code. */ + flagword flags; + } coff_data_type; /* Tdata for pe image files. */ @@ -117,11 +132,11 @@ struct xcoff_tdata /* TOC value. */ bfd_vma toc; - /* Section holding TOC. */ - asection *toc_section; + /* Index of section holding TOC. */ + int sntoc; - /* Section holding entry point. */ - asection *entry_section; + /* Index of section holding entry point. */ + int snentry; /* .text alignment from optional header. */ int text_align_power; @@ -171,6 +186,8 @@ struct coff_section_tdata unsigned int i; const char *function; int line_base; + /* A pointer used for .stab linking optimizations. */ + PTR stab_info; /* Available for individual backends. */ PTR tdata; }; @@ -199,6 +216,20 @@ struct xcoff_section_tdata #define xcoff_section_data(abfd, sec) \ ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata) +/* Tdata for sections in PE files. */ + +struct pei_section_tdata +{ + /* The virtual size of the section. */ + bfd_size_type virt_size; + /* The PE section flags. */ + long pe_flags; +}; + +/* An accessor macro for the pei_section_tdata structure. */ +#define pei_section_data(abfd, sec) \ + ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata) + /* COFF linker hash table entries. */ struct coff_link_hash_entry @@ -224,10 +255,10 @@ struct coff_link_hash_entry /* Pointer to array of auxiliary entries, if any. */ union internal_auxent *aux; - /* If this symbol requires an entry in the table of contents, the - processor specific backend uses this field to hold the offset - into the .toc section. */ - bfd_vma toc_offset; + /* Flag word; legal values follow. */ + unsigned short coff_link_hash_flags; + /* Symbol is a PE section symbol. */ +#define COFF_LINK_HASH_PE_SECTION_SYMBOL (01) }; /* COFF linker hash table. */ @@ -235,6 +266,8 @@ struct coff_link_hash_entry struct coff_link_hash_table { struct bfd_link_hash_table root; + /* A pointer to information used to link stabs in sections. */ + PTR stab_info; }; /* Look up an entry in a COFF linker hash table. */ @@ -279,6 +312,7 @@ extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *, bfd_print_symbol_type how)); extern void coff_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *ret)); +extern boolean _bfd_coff_is_local_label_name PARAMS ((bfd *, const char *)); extern asymbol *coff_bfd_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long)); extern boolean coff_find_nearest_line PARAMS ((bfd *, @@ -301,7 +335,177 @@ extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip, asection *input_section, bfd_vma val)); -/* Functions in cofflink.c. */ +/* Functions and types in cofflink.c. */ + +#define STRING_SIZE_SIZE (4) + +/* We use a hash table to merge identical enum, struct, and union + definitions in the linker. */ + +/* Information we keep for a single element (an enum value, a + structure or union field) in the debug merge hash table. */ + +struct coff_debug_merge_element +{ + /* Next element. */ + struct coff_debug_merge_element *next; + + /* Name. */ + const char *name; + + /* Type. */ + unsigned int type; + + /* Symbol index for complex type. */ + long tagndx; +}; + +/* A linked list of debug merge entries for a given name. */ + +struct coff_debug_merge_type +{ + /* Next type with the same name. */ + struct coff_debug_merge_type *next; + + /* Class of type. */ + int class; + + /* Symbol index where this type is defined. */ + long indx; + + /* List of elements. */ + struct coff_debug_merge_element *elements; +}; + +/* Information we store in the debug merge hash table. */ + +struct coff_debug_merge_hash_entry +{ + struct bfd_hash_entry root; + + /* A list of types with this name. */ + struct coff_debug_merge_type *types; +}; + +/* The debug merge hash table. */ + +struct coff_debug_merge_hash_table +{ + struct bfd_hash_table root; +}; + +/* Initialize a COFF debug merge hash table. */ + +#define coff_debug_merge_hash_table_init(table) \ + (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc)) + +/* Free a COFF debug merge hash table. */ + +#define coff_debug_merge_hash_table_free(table) \ + (bfd_hash_table_free (&(table)->root)) + +/* Look up an entry in a COFF debug merge hash table. */ + +#define coff_debug_merge_hash_lookup(table, string, create, copy) \ + ((struct coff_debug_merge_hash_entry *) \ + bfd_hash_lookup (&(table)->root, (string), (create), (copy))) + +/* Information we keep for each section in the output file when doing + a relocateable link. */ + +struct coff_link_section_info +{ + /* The relocs to be output. */ + struct internal_reloc *relocs; + /* For each reloc against a global symbol whose index was not known + when the reloc was handled, the global hash table entry. */ + struct coff_link_hash_entry **rel_hashes; +}; + +/* Information that we pass around while doing the final link step. */ + +struct coff_final_link_info +{ + /* General link information. */ + struct bfd_link_info *info; + /* Output BFD. */ + bfd *output_bfd; + /* Used to indicate failure in traversal routine. */ + boolean failed; + /* If doing "task linking" set only during the time when we want the + global symbol writer to convert the storage class of defined global + symbols from global to static. */ + boolean global_to_static; + /* Hash table for long symbol names. */ + struct bfd_strtab_hash *strtab; + /* When doing a relocateable link, an array of information kept for + each output section, indexed by the target_index field. */ + struct coff_link_section_info *section_info; + /* Symbol index of last C_FILE symbol (-1 if none). */ + long last_file_index; + /* Contents of last C_FILE symbol. */ + struct internal_syment last_file; + /* Symbol index of first aux entry of last .bf symbol with an empty + endndx field (-1 if none). */ + long last_bf_index; + /* Contents of last_bf_index aux entry. */ + union internal_auxent last_bf; + /* Hash table used to merge debug information. */ + struct coff_debug_merge_hash_table debug_merge; + /* Buffer large enough to hold swapped symbols of any input file. */ + struct internal_syment *internal_syms; + /* Buffer large enough to hold sections of symbols of any input file. */ + asection **sec_ptrs; + /* Buffer large enough to hold output indices of symbols of any + input file. */ + long *sym_indices; + /* Buffer large enough to hold output symbols for any input file. */ + bfd_byte *outsyms; + /* Buffer large enough to hold external line numbers for any input + section. */ + bfd_byte *linenos; + /* Buffer large enough to hold any input section. */ + bfd_byte *contents; + /* Buffer large enough to hold external relocs of any input section. */ + bfd_byte *external_relocs; + /* Buffer large enough to hold swapped relocs of any input section. */ + struct internal_reloc *internal_relocs; +}; + +/* Most COFF variants have no way to record the alignment of a + section. This struct is used to set a specific alignment based on + the name of the section. */ + +struct coff_section_alignment_entry +{ + /* The section name. */ + const char *name; + + /* This is either (unsigned int) -1, indicating that the section + name must match exactly, or it is the number of letters which + must match at the start of the name. */ + unsigned int comparison_length; + + /* These macros may be used to fill in the first two fields in a + structure initialization. */ +#define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1) +#define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1) + + /* Only use this entry if the default section alignment for this + target is at least that much (as a power of two). If this field + is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored. */ + unsigned int default_alignment_min; + + /* Only use this entry if the default section alignment for this + target is no greater than this (as a power of two). If this + field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored. */ + unsigned int default_alignment_max; + +#define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1) + + /* The desired alignment for this section (as a power of two). */ + unsigned int alignment_power; +}; extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); @@ -325,11 +529,30 @@ extern boolean _bfd_coff_generic_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, struct internal_reloc *, struct internal_syment *, asection **)); +extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc + PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); +extern boolean _bfd_coff_write_global_sym + PARAMS ((struct coff_link_hash_entry *, PTR)); +extern boolean _bfd_coff_write_task_globals + PARAMS ((struct coff_link_hash_entry *, PTR)); +extern boolean _bfd_coff_link_input_bfd + PARAMS ((struct coff_final_link_info *, bfd *)); +extern boolean _bfd_coff_reloc_link_order + PARAMS ((bfd *, struct coff_final_link_info *, asection *, + struct bfd_link_order *)); + + #define coff_get_section_contents_in_window \ _bfd_generic_get_section_contents_in_window /* Functions in xcofflink.c. */ +extern long _bfd_xcoff_get_dynamic_symtab_upper_bound PARAMS ((bfd *)); +extern long _bfd_xcoff_canonicalize_dynamic_symtab + PARAMS ((bfd *, asymbol **)); +extern long _bfd_xcoff_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); +extern long _bfd_xcoff_canonicalize_dynamic_reloc + PARAMS ((bfd *, arelent **, asymbol **)); extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create PARAMS ((bfd *)); extern boolean _bfd_xcoff_bfd_link_add_symbols @@ -340,6 +563,13 @@ extern boolean _bfd_ppc_xcoff_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, struct internal_reloc *, struct internal_syment *, asection **)); +/* Functions in coff-ppc.c. FIXME: These are called be pe.em in the + linker, and so should start with bfd and be declared in bfd.h. */ + +extern boolean ppc_allocate_toc_section PARAMS ((struct bfd_link_info *)); +extern boolean ppc_process_before_allocation + PARAMS ((bfd *, struct bfd_link_info *)); + /* And more taken from the source .. */ typedef struct coff_ptr_struct @@ -396,6 +626,22 @@ struct lineno_cache_entry *lineno; /* Have the line numbers been relocated yet ? */ boolean done_lineno; } coff_symbol_type; + /* COFF symbol classifications. */ + +enum coff_symbol_classification +{ + /* Global symbol. */ + COFF_SYMBOL_GLOBAL, + /* Common symbol. */ + COFF_SYMBOL_COMMON, + /* Undefined symbol. */ + COFF_SYMBOL_UNDEFINED, + /* Local symbol. */ + COFF_SYMBOL_LOCAL, + /* PE section symbol. */ + COFF_SYMBOL_PE_SECTION +}; + typedef struct { void (*_bfd_coff_swap_aux_in) PARAMS (( @@ -418,43 +664,43 @@ typedef struct PTR in)); unsigned int (*_bfd_coff_swap_aux_out) PARAMS (( - bfd *abfd, - PTR in, - int type, - int class, + bfd *abfd, + PTR in, + int type, + int class, int indaux, int numaux, - PTR ext)); + PTR ext)); unsigned int (*_bfd_coff_swap_sym_out) PARAMS (( bfd *abfd, - PTR in, - PTR ext)); + PTR in, + PTR ext)); unsigned int (*_bfd_coff_swap_lineno_out) PARAMS (( - bfd *abfd, - PTR in, - PTR ext)); + bfd *abfd, + PTR in, + PTR ext)); unsigned int (*_bfd_coff_swap_reloc_out) PARAMS (( - bfd *abfd, - PTR src, - PTR dst)); + bfd *abfd, + PTR src, + PTR dst)); unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS (( - bfd *abfd, - PTR in, - PTR out)); + bfd *abfd, + PTR in, + PTR out)); unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS (( - bfd *abfd, - PTR in, - PTR out)); + bfd *abfd, + PTR in, + PTR out)); unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS (( - bfd *abfd, - PTR in, - PTR out)); + bfd *abfd, + PTR in, + PTR out)); unsigned int _bfd_filhsz; unsigned int _bfd_aoutsz; @@ -464,6 +710,8 @@ typedef struct unsigned int _bfd_relsz; unsigned int _bfd_linesz; boolean _bfd_coff_long_filenames; + boolean _bfd_coff_long_section_names; + unsigned int _bfd_coff_default_section_alignment_power; void (*_bfd_coff_swap_filehdr_in) PARAMS (( bfd *abfd, PTR ext, @@ -493,7 +741,8 @@ typedef struct flagword (*_bfd_styp_to_sec_flags_hook) PARAMS (( bfd *abfd, PTR internal_scnhdr, - const char *name)); + const char *name, + asection *section)); void (*_bfd_set_alignment_hook) PARAMS (( bfd *abfd, asection *sec, @@ -530,10 +779,10 @@ typedef struct arelent *r, unsigned int shrink, struct bfd_link_info *link_info)); - boolean (*_bfd_coff_sym_is_global) PARAMS (( + enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS (( bfd *abfd, struct internal_syment *)); - void (*_bfd_coff_compute_section_file_positions) PARAMS (( + boolean (*_bfd_coff_compute_section_file_positions) PARAMS (( bfd *abfd)); boolean (*_bfd_coff_start_final_link) PARAMS (( bfd *output_bfd, @@ -561,6 +810,24 @@ typedef struct asection *sec, struct internal_reloc *reloc, boolean *adjustedp)); + boolean (*_bfd_coff_link_add_one_symbol) PARAMS (( + struct bfd_link_info *info, + bfd *abfd, + const char *name, + flagword flags, + asection *section, + bfd_vma value, + const char *string, + boolean copy, + boolean collect, + struct bfd_link_hash_entry **hashp)); + + boolean (*_bfd_coff_link_output_has_begun) PARAMS (( + bfd * abfd, + struct coff_final_link_info * pfinfo)); + boolean (*_bfd_coff_final_link_postscript) PARAMS (( + bfd * abfd, + struct coff_final_link_info * pfinfo)); } bfd_coff_backend_data; @@ -604,6 +871,10 @@ typedef struct #define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz) #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz) #define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames) +#define bfd_coff_long_section_names(abfd) \ + (coff_backend_info (abfd)->_bfd_coff_long_section_names) +#define bfd_coff_default_section_alignment_power(abfd) \ + (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power) #define bfd_coff_swap_filehdr_in(abfd, i,o) \ ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o)) @@ -624,8 +895,9 @@ typedef struct #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\ ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr)) -#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\ - ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name)) +#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\ + ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\ + (abfd, scnhdr, name, section)) #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\ ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr)) @@ -648,8 +920,8 @@ typedef struct ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\ (abfd, section, reloc, shrink, link_info)) -#define bfd_coff_sym_is_global(abfd, sym)\ - ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\ +#define bfd_coff_classify_symbol(abfd, sym)\ + ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\ (abfd, sym)) #define bfd_coff_compute_section_file_positions(abfd)\ @@ -668,4 +940,12 @@ typedef struct #define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\ ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\ (obfd, info, ibfd, sec, rel, adjustedp)) +#define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\ + ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\ + (info, abfd, name, flags, section, value, string, cp, coll, hashp)) + +#define bfd_coff_link_output_has_begun(a,p) \ + ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p)) +#define bfd_coff_final_link_postscript(a,p) \ + ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))