+#define coff_data(bfd) ((bfd)->tdata.coff_obj_data)
+#define exec_hdr(bfd) (coff_data(bfd)->hdr)
+#define obj_pe(bfd) (coff_data(bfd)->pe)
+#define obj_symbols(bfd) (coff_data(bfd)->symbols)
+#define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos)
+
+#define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
+#define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
+#define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
+#define obj_convert(bfd) (coff_data(bfd)->conversion_table)
+#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
+
+#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
+#define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
+#define obj_coff_strings(bfd) (coff_data (bfd)->strings)
+#define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
+#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
+#define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written)
+
+#define obj_coff_local_toc_table(bfd) (coff_data(bfd)->local_toc_sym_map)
+
+/* `Tdata' information kept for COFF files. */
+
+typedef struct coff_tdata
+{
+ struct coff_symbol_struct *symbols; /* symtab for input bfd */
+ unsigned int *conversion_table;
+ int conv_table_size;
+ file_ptr sym_filepos;
+
+ struct coff_ptr_struct *raw_syments;
+ unsigned long raw_syment_count;
+
+ /* These are only valid once writing has begun */
+ long int relocbase;
+
+ /* These members communicate important constants about the symbol table
+ to GDB's symbol-reading code. These `constants' unfortunately vary
+ from coff implementation to implementation... */
+ unsigned local_n_btmask;
+ unsigned local_n_btshft;
+ unsigned local_n_tmask;
+ unsigned local_n_tshift;
+ unsigned local_symesz;
+ unsigned local_auxesz;
+ unsigned local_linesz;
+
+ /* The unswapped external symbols. May be NULL. Read by
+ _bfd_coff_get_external_symbols. */
+ PTR external_syms;
+ /* If this is true, the external_syms may not be freed. */
+ boolean keep_syms;
+
+ /* The string table. May be NULL. Read by
+ _bfd_coff_read_string_table. */
+ char *strings;
+ /* If this is true, the strings may not be freed. */
+ boolean keep_strings;
+ /* If this is true, the strings have been written out already. */
+ boolean strings_written;
+
+ /* is this a PE format coff file */
+ int pe;
+ /* Used by the COFF backend linker. */
+ struct coff_link_hash_entry **sym_hashes;
+
+ /* used by the pe linker for PowerPC */
+ int *local_toc_sym_map;
+
+ struct bfd_link_info *link_info;
+
+ /* Used by coff_find_nearest_line. */
+ PTR line_info;
+
+ /* A place to stash dwarf2 info for this bfd. */
+ PTR dwarf2_find_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. */
+typedef struct pe_tdata
+{
+ coff_data_type coff;
+ struct internal_extra_pe_aouthdr pe_opthdr;
+ int dll;
+ int has_reloc_section;
+ boolean (*in_reloc_p) PARAMS((bfd *, reloc_howto_type *));
+ flagword real_flags;
+ int target_subsystem;
+ boolean force_minimum_alignment;
+} pe_data_type;
+
+#define pe_data(bfd) ((bfd)->tdata.pe_obj_data)
+
+/* Tdata for XCOFF files. */
+
+struct xcoff_tdata
+{
+ /* Basic COFF information. */
+ coff_data_type coff;
+
+ /* True if this is an XCOFF64 file. */
+ boolean xcoff64;
+
+ /* True if a large a.out header should be generated. */
+ boolean full_aouthdr;
+
+ /* TOC value. */
+ bfd_vma toc;
+
+ /* Index of section holding TOC. */
+ int sntoc;
+
+ /* Index of section holding entry point. */
+ int snentry;
+
+ /* .text alignment from optional header. */
+ int text_align_power;
+
+ /* .data alignment from optional header. */
+ int data_align_power;
+
+ /* modtype from optional header. */
+ short modtype;
+
+ /* cputype from optional header. */
+ short cputype;
+
+ /* maxdata from optional header. */
+ bfd_vma maxdata;
+
+ /* maxstack from optional header. */
+ bfd_vma maxstack;
+
+ /* Used by the XCOFF backend linker. */
+ asection **csects;
+ unsigned long *debug_indices;
+ unsigned int import_file_id;
+};
+
+#define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
+
+/* We take the address of the first element of an asymbol to ensure that the
+ * macro is only ever applied to an asymbol. */
+#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
+
+/* The used_by_bfd field of a section may be set to a pointer to this
+ structure. */
+
+struct coff_section_tdata
+{
+ /* The relocs, swapped into COFF internal form. This may be NULL. */
+ struct internal_reloc *relocs;
+ /* If this is true, the relocs entry may not be freed. */
+ boolean keep_relocs;
+ /* The section contents. This may be NULL. */
+ bfd_byte *contents;
+ /* If this is true, the contents entry may not be freed. */
+ boolean keep_contents;
+ /* Information cached by coff_find_nearest_line. */
+ bfd_vma offset;
+ 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;
+};
+
+/* An accessor macro for the coff_section_tdata structure. */
+#define coff_section_data(abfd, sec) \
+ ((struct coff_section_tdata *) (sec)->used_by_bfd)
+
+/* Tdata for sections in XCOFF files. This is used by the linker. */
+
+struct xcoff_section_tdata
+{
+ /* Used for XCOFF csects created by the linker; points to the real
+ XCOFF section which contains this csect. */
+ asection *enclosing;
+ /* The lineno_count field for the enclosing section, because we are
+ going to clobber it there. */
+ unsigned int lineno_count;
+ /* The first and one past the last symbol indices for symbols used
+ by this csect. */
+ unsigned long first_symndx;
+ unsigned long last_symndx;
+};
+
+/* An accessor macro the xcoff_section_tdata structure. */
+#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
+{
+ struct bfd_link_hash_entry root;
+
+ /* Symbol index in output file. Set to -1 initially. Set to -2 if
+ there is a reloc against this symbol. */
+ long indx;
+
+ /* Symbol type. */
+ unsigned short type;
+
+ /* Symbol class. */
+ unsigned char class;
+
+ /* Number of auxiliary entries. */
+ char numaux;
+
+ /* BFD to take auxiliary entries from. */
+ bfd *auxbfd;
+
+ /* Pointer to array of auxiliary entries, if any. */
+ union internal_auxent *aux;
+
+ /* 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. */
+
+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. */
+
+#define coff_link_hash_lookup(table, string, create, copy, follow) \
+ ((struct coff_link_hash_entry *) \
+ bfd_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+/* Traverse a COFF linker hash table. */
+
+#define coff_link_hash_traverse(table, func, info) \
+ (bfd_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the COFF linker hash table from a link_info structure. */
+
+#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
+
+/* Functions in coffgen.c. */
+extern const bfd_target *coff_object_p
+ PARAMS ((bfd *));
+extern struct sec *coff_section_from_bfd_index
+ PARAMS ((bfd *, int));
+extern long coff_get_symtab_upper_bound
+ PARAMS ((bfd *));
+extern long coff_get_symtab
+ PARAMS ((bfd *, asymbol **));
+extern int coff_count_linenumbers
+ PARAMS ((bfd *));
+extern struct coff_symbol_struct *coff_symbol_from
+ PARAMS ((bfd *, asymbol *));
+extern boolean coff_renumber_symbols
+ PARAMS ((bfd *, int *));
+extern void coff_mangle_symbols
+ PARAMS ((bfd *));
+extern boolean coff_write_symbols
+ PARAMS ((bfd *));
+extern boolean coff_write_linenumbers
+ PARAMS ((bfd *));
+extern alent *coff_get_lineno
+ PARAMS ((bfd *, asymbol *));
+extern asymbol *coff_section_symbol
+ PARAMS ((bfd *, char *));
+extern boolean _bfd_coff_get_external_symbols
+ PARAMS ((bfd *));
+extern const char *_bfd_coff_read_string_table
+ PARAMS ((bfd *));
+extern boolean _bfd_coff_free_symbols
+ PARAMS ((bfd *));
+extern struct coff_ptr_struct *coff_get_normalized_symtab
+ PARAMS ((bfd *));
+extern long coff_get_reloc_upper_bound
+ PARAMS ((bfd *, sec_ptr));
+extern asymbol *coff_make_empty_symbol
+ PARAMS ((bfd *));
+extern void coff_print_symbol
+ PARAMS ((bfd *, PTR filep, asymbol *, bfd_print_symbol_type));
+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 *, asection *, asymbol **, bfd_vma, const char **,
+ const char **, unsigned int *));
+extern int coff_sizeof_headers
+ PARAMS ((bfd *, boolean));
+extern boolean bfd_coff_reloc16_relax_section
+ PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
+extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
+ PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
+ bfd_byte *, boolean, asymbol **));
+extern bfd_vma bfd_coff_reloc16_get_value
+ PARAMS ((arelent *, struct bfd_link_info *, asection *));
+extern void bfd_perform_slip
+ PARAMS ((bfd *, unsigned int, asection *, bfd_vma));
+
+/* 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 *));
+extern boolean _bfd_coff_link_hash_table_init
+ PARAMS ((struct coff_link_hash_table *, bfd *,
+ struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *)));
+extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
+ PARAMS ((bfd *));
+extern const char *_bfd_coff_internal_syment_name
+ PARAMS ((bfd *, const struct internal_syment *, char *));
+extern boolean _bfd_coff_link_add_symbols
+ PARAMS ((bfd *, struct bfd_link_info *));
+extern boolean _bfd_coff_final_link
+ PARAMS ((bfd *, struct bfd_link_info *));
+extern struct internal_reloc *_bfd_coff_read_internal_relocs
+ PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
+ struct internal_reloc *));
+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 void _bfd_xcoff_bfd_link_hash_table_free
+ PARAMS ((struct bfd_link_hash_table *));
+extern boolean _bfd_xcoff_bfd_link_add_symbols
+ PARAMS ((bfd *, struct bfd_link_info *));
+extern boolean _bfd_xcoff_bfd_final_link
+ PARAMS ((bfd *, struct bfd_link_info *));
+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 *));
+
+/* Extracted from coffcode.h. */
projects / deliverable / binutils-gdb.git / blobdiff