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126 lines
4.8 KiB
C
126 lines
4.8 KiB
C
/* BFD back-end data structures for a.out (and similar) files.
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We try to encapsulate the differences in a few routines, and otherwise
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share large masses of code. This means we only have to fix bugs in
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one place, most of the time. */
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/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Diddler.
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BFD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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BFD is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with BFD; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* $Id$ */
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#define adata(bfd) ((struct aoutdata *) ((bfd)->tdata))
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#define exec_hdr(bfd) (adata(bfd)->hdr)
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#define obj_textsec(bfd) (adata(bfd)->textsec)
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#define obj_datasec(bfd) (adata(bfd)->datasec)
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#define obj_bsssec(bfd) (adata(bfd)->bsssec)
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#define obj_sym_filepos(bfd) (adata(bfd)->sym_filepos)
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#define obj_str_filepos(bfd) (adata(bfd)->str_filepos)
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#define obj_reloc_entry_size(bfd) (adata(bfd)->reloc_entry_size)
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typedef struct aout_symbol {
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asymbol symbol;
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short desc;
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char other;
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unsigned char type;
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} aout_symbol_type;
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struct aoutdata {
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struct exec *hdr; /* exec file header */
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aout_symbol_type *symbols; /* symtab for input bfd */
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/* For ease, we do this */
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asection *textsec;
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asection *datasec;
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asection *bsssec;
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/* We remember these offsets so that after check_file_format, we have
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no dependencies on the particular format of the exec_hdr. */
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file_ptr sym_filepos;
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file_ptr str_filepos;
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/* Size of a relocation entry */
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unsigned reloc_entry_size;
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};
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#define obj_outsymbols(bfd) ((PTR)(((struct aoutdata *) ((bfd)->tdata))->outsymbols))
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/* We take the address of the first element of an asymbol to ensure that the
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* macro is only ever applied to an asymbol */
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#define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
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/*#define obj_symbols(bfd) ((((struct aoutdata *) ((bfd)->tdata))->symbols))*/
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#define obj_aout_symbols(bfd) ((((struct aoutdata *) (bfd)->tdata))->symbols)
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#define obj_arch_flags(bfd) ((((struct aoutdata *) (bfd)->tdata))->arch_flags)
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#define get_tdata(x) ((struct aoutdata *)((x)->tdata))
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/* Prototype declarations for functions defined in aout.c. */
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PROTO (boolean, aout_squirt_out_relocs,(bfd *abfd, asection *section));
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PROTO (bfd_target *, some_aout_object_p, (bfd *abfd,
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bfd_target *(*callback)()));
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PROTO (boolean, aout_mkobject, (bfd *abfd));
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PROTO (enum machine_type, aout_machine_type, (enum bfd_architecture arch,
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unsigned long machine));
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PROTO (boolean, aout_set_arch_mach, (bfd *abfd, enum bfd_architecture arch,
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unsigned long machine));
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PROTO (boolean, aout_new_section_hook, (bfd *abfd, asection *newsect));
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PROTO (boolean, aout_set_section_contents, (bfd *abfd, sec_ptr section,
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PTR location, file_ptr offset, int count));
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PROTO (asymbol *, aout_make_empty_symbol, (bfd *abfd));
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PROTO (boolean, aout_slurp_symbol_table, (bfd *abfd));
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PROTO (void, aout_write_syms, (bfd *abfd));
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PROTO (void, aout_reclaim_symbol_table, (bfd *abfd));
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PROTO (unsigned int, aout_get_symtab_upper_bound, (bfd *abfd));
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PROTO (unsigned int, aout_get_symtab, (bfd *abfd, asymbol **location));
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PROTO (boolean, aout_slurp_reloc_table, (bfd *abfd, sec_ptr asect,
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asymbol **symbols));
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PROTO (unsigned int, aout_canonicalize_reloc, (bfd *abfd, sec_ptr section,
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arelent **relptr, asymbol **symbols));
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PROTO (unsigned int, aout_get_reloc_upper_bound, (bfd *abfd, sec_ptr asect));
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PROTO (void, aout_reclaim_reloc, (bfd *ignore_abfd, sec_ptr ignore));
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PROTO (alent *, aout_get_lineno, (bfd *ignore_abfd, asymbol *ignore_symbol));
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PROTO (void, aout_print_symbol, (bfd *ignore_abfd, PTR file,
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asymbol *symbol, bfd_print_symbol_enum_type how));
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PROTO (boolean, aout_close_and_cleanup, (bfd *abfd));
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PROTO (boolean, aout_find_nearest_line, (bfd *abfd, asection *section,
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asymbol **symbols, bfd_vma offset, CONST char **filename_ptr,
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CONST char **functionname_ptr, unsigned int *line_ptr));
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PROTO (int, aout_sizeof_headers, (bfd *ignore_abfd));
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/* Helper routines in aout.c. */
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PROTO (void, bfd_aout_swap_exec_header_in, (bfd *abfd,
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unsigned char *raw_bytes, struct exec *execp));
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PROTO (void, bfd_aout_swap_exec_header_out,(bfd *abfd, struct exec *execp,
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unsigned char *raw_bytes));
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/* A.out uses the generic versions of these routines... */
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#define aout_get_section_contents bfd_generic_get_section_contents
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#define aout_close_and_cleanup bfd_generic_close_and_cleanup
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