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/* BFD back-end data structures for a.out (and similar) files.
We try to encapsulate the differences in a few routines, and otherwise
share large masses of code. This means we only have to fix bugs in
one place, most of the time. */
/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Diddler.
BFD 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 1, or (at your option)
any later version.
BFD 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 BFD; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* $Id$ */
#define adata(bfd) ((struct aoutdata *) ((bfd)->tdata))
#define exec_hdr(bfd) (adata(bfd)->hdr)
#define obj_textsec(bfd) (adata(bfd)->textsec)
#define obj_datasec(bfd) (adata(bfd)->datasec)
#define obj_bsssec(bfd) (adata(bfd)->bsssec)
#define obj_sym_filepos(bfd) (adata(bfd)->sym_filepos)
#define obj_str_filepos(bfd) (adata(bfd)->str_filepos)
#define obj_reloc_entry_size(bfd) (adata(bfd)->reloc_entry_size)
typedef struct aout_symbol {
asymbol symbol;
short desc;
char other;
unsigned char type;
} aout_symbol_type;
struct aoutdata {
struct exec *hdr; /* exec file header */
aout_symbol_type *symbols; /* symtab for input bfd */
/* For ease, we do this */
asection *textsec;
asection *datasec;
asection *bsssec;
/* We remember these offsets so that after check_file_format, we have
no dependencies on the particular format of the exec_hdr. */
file_ptr sym_filepos;
file_ptr str_filepos;
/* Size of a relocation entry */
unsigned reloc_entry_size;
};
#define obj_outsymbols(bfd) ((PTR)(((struct aoutdata *) ((bfd)->tdata))->outsymbols))
/* We take the address of the first element of an asymbol to ensure that the
* macro is only ever applied to an asymbol */
#define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
/*#define obj_symbols(bfd) ((((struct aoutdata *) ((bfd)->tdata))->symbols))*/
#define obj_aout_symbols(bfd) ((((struct aoutdata *) (bfd)->tdata))->symbols)
#define obj_arch_flags(bfd) ((((struct aoutdata *) (bfd)->tdata))->arch_flags)
#define get_tdata(x) ((struct aoutdata *)((x)->tdata))
/* Prototype declarations for functions defined in aout.c. */
PROTO (boolean, aout_squirt_out_relocs,(bfd *abfd, asection *section));
PROTO (bfd_target *, some_aout_object_p, (bfd *abfd,
bfd_target *(*callback)()));
PROTO (boolean, aout_mkobject, (bfd *abfd));
PROTO (enum machine_type, aout_machine_type, (enum bfd_architecture arch,
unsigned long machine));
PROTO (boolean, aout_set_arch_mach, (bfd *abfd, enum bfd_architecture arch,
unsigned long machine));
PROTO (boolean, aout_new_section_hook, (bfd *abfd, asection *newsect));
PROTO (boolean, aout_set_section_contents, (bfd *abfd, sec_ptr section,
PTR location, file_ptr offset, int count));
PROTO (asymbol *, aout_make_empty_symbol, (bfd *abfd));
PROTO (boolean, aout_slurp_symbol_table, (bfd *abfd));
PROTO (void, aout_write_syms, (bfd *abfd));
PROTO (void, aout_reclaim_symbol_table, (bfd *abfd));
PROTO (unsigned int, aout_get_symtab_upper_bound, (bfd *abfd));
PROTO (unsigned int, aout_get_symtab, (bfd *abfd, asymbol **location));
PROTO (boolean, aout_slurp_reloc_table, (bfd *abfd, sec_ptr asect,
asymbol **symbols));
PROTO (unsigned int, aout_canonicalize_reloc, (bfd *abfd, sec_ptr section,
arelent **relptr, asymbol **symbols));
PROTO (unsigned int, aout_get_reloc_upper_bound, (bfd *abfd, sec_ptr asect));
PROTO (void, aout_reclaim_reloc, (bfd *ignore_abfd, sec_ptr ignore));
PROTO (alent *, aout_get_lineno, (bfd *ignore_abfd, asymbol *ignore_symbol));
PROTO (void, aout_print_symbol, (bfd *ignore_abfd, PTR file,
asymbol *symbol, bfd_print_symbol_enum_type how));
PROTO (boolean, aout_close_and_cleanup, (bfd *abfd));
PROTO (boolean, aout_find_nearest_line, (bfd *abfd, asection *section,
asymbol **symbols, bfd_vma offset, CONST char **filename_ptr,
CONST char **functionname_ptr, unsigned int *line_ptr));
PROTO (int, aout_sizeof_headers, (bfd *ignore_abfd));
/* Helper routines in aout.c. */
PROTO (void, bfd_aout_swap_exec_header_in, (bfd *abfd,
unsigned char *raw_bytes, struct exec *execp));
PROTO (void, bfd_aout_swap_exec_header_out,(bfd *abfd, struct exec *execp,
unsigned char *raw_bytes));
/* A.out uses the generic versions of these routines... */
#define aout_get_section_contents bfd_generic_get_section_contents
#define aout_close_and_cleanup bfd_generic_close_and_cleanup
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