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binutils-gdb/bfd/libbfd.h
Steve Chamberlain 63ffe5ef86 Insert the incidentals and things I forgot to ci last time, same log message: 
Mon Sep 30 15:13:46 1991  Steve Chamberlain  (steve at cygnus.com)

	* cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c,
	cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These
	files will eventually contain processor specific bits for bfd,
	like strange relocation information and dis/assembly.  So far only
	the H8 has been even partially done.  This work also ties in with
	the change in handling architectures.

	* amdcoff.c: (a29k_reloc) fix error message.

	* aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to
	discover the architecture of the bfd. (sunos4_callback) calls the
	function bfd_set_arch_mach rather than stuffing stuff directly
	into the bfd. (sunos4_write_object_contents), changed names of
	accessor functions.

	* aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to
	setup the environment.

	* archive.c: (bfd_slurp_coff_armap) coff archives always have the
	headers in big endian format, regardless of the endianess of the
	host or target.

	* archures.c: totally changed. Now an architecture is represented
	with a pointer to an info structure rather than an enumerated type
	and a long. The old info is available as two elements in the
	structure.  Future enhancements to architecure support will
	involve pointers to methods being placed into the info structure.

	* bfd.c: changed the definition of the bfd structure for the new
	architecture stuff.

	* bout.c: (b_out_set_arch_mach) changed to use the new
	architecture mechanism.

	* coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use
	the new architecture mechanism.

	* configure.in: added h8 stuff.

	* ieee.c: too many changes to note.  Now ieee files written with
	bfd gas and ld can be read by gld and ieee only linkers and
	simulators.

	* libbfd.c, libbfd.h: changed prototype of bfd_write.

	* newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather
	than fixing the structure directly.

	* oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather
	than fixing the structure directly.

	* opncls.c: (new_bfd) makes sure that bfd_init has been called
	before opening a bfd.

	* srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach
	rather than fixing the structure directly.

	* targets.c: (target_vector) now by defining SELECT_VECS (perhaps
	in the t/hmake file) a user can select which backends they want
	linked with bfd without changing the source.

	* init.c: new, looks after initializing modules.

	* howto.c: for future use, will allow an application to work out
	what cookie to use as a handle on a relcoatio howto.
1991-10-01 03:55:40 +00:00

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/* libbfd.h -- Declarations used by bfd library *implementation*.
(This include file is not for users of the library.)
Copyright (C) 1990-1991 Free Software Foundation, Inc.
Written by Cygnus Support.
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 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. */
/* $Id$ */
/* If you want to read and write large blocks, you might want to do it
in quanta of this amount */
#define DEFAULT_BUFFERSIZE 8192
/* Set a tdata field. Can't use the other macros for this, since they
do casts, and casting to the left of assignment isn't portable. */
#define set_tdata(bfd, v) ((bfd)->tdata = (PTR) (v))
/* tdata for an archive. For an input archive, cache
needs to be free()'d. For an output archive, symdefs do. */
struct artdata {
file_ptr first_file_filepos;
/* Speed up searching the armap */
struct ar_cache *cache;
bfd *archive_head; /* Only interesting in output routines */
carsym *symdefs; /* the symdef entries */
symindex symdef_count; /* how many there are */
char *extended_names; /* clever intel extension */
};
#define bfd_ardata(bfd) ((struct artdata *) ((bfd)->tdata))
/* Goes in bfd's arelt_data slot */
struct areltdata {
char * arch_header; /* it's actually a string */
unsigned int parsed_size; /* octets of filesize not including ar_hdr */
char *filename; /* null-terminated */
};
#define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size)
/* FIXME -- a lot of my code allocates a large block and subdivides it.
This can't always work, because of alignment restrictions. We should change
it before it becomes a problem -- Gumby */
PROTO (char *, zalloc, (bfd_size_type size));
/* These routines allocate and free things on the BFD's obstack. Note
that realloc can never occur in place. */
PROTO(PTR, bfd_alloc, (bfd *abfd, bfd_size_type size));
PROTO(PTR, bfd_zalloc,(bfd *abfd, bfd_size_type size));
PROTO(PTR, bfd_realloc,(bfd *abfd, PTR orig, bfd_size_type new));
PROTO(void, bfd_alloc_grow,(bfd *abfd, PTR thing, bfd_size_type size));
PROTO(PTR, bfd_alloc_finish,(bfd *abfd));
#define bfd_release(x,y) (void) obstack_free(&(x->memory),y)
PROTO (bfd_size_type, bfd_read, (PTR ptr, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
PROTO (bfd_size_type, bfd_write, (CONST PTR ptr, bfd_size_type size, bfd_size_type nitems, bfd *abfd));
PROTO (int, bfd_seek,(bfd* abfd, file_ptr fp , int direction));
PROTO (long, bfd_tell, (bfd *abfd));
PROTO (bfd *, _bfd_create_empty_archive_element_shell, (bfd *obfd));
PROTO (bfd *, look_for_bfd_in_cache, (bfd *arch_bfd, file_ptr index));
PROTO (boolean, _bfd_generic_mkarchive, (bfd *abfd));
PROTO (struct areltdata *, snarf_ar_hdr, (bfd *abfd));
PROTO (bfd_target *, bfd_generic_archive_p, (bfd *abfd));
PROTO (boolean, bfd_slurp_bsd_armap, (bfd *abfd));
PROTO (boolean, bfd_slurp_coff_armap, (bfd *abfd));
PROTO (boolean, _bfd_slurp_extended_name_table, (bfd *abfd));
PROTO (boolean, _bfd_write_archive_contents, (bfd *abfd));
PROTO (bfd *, new_bfd, ());
#define DEFAULT_STRING_SPACE_SIZE 0x2000
PROTO (boolean, bfd_add_to_string_table, (char **table, char *new_string,
unsigned int *table_length,
char **free_ptr));
PROTO (bfd_vma, _do_getb64, (unsigned char *addr));
PROTO (bfd_vma, _do_getl64, (unsigned char *addr));
PROTO (bfd_vma, _do_getb32, (unsigned char *addr));
PROTO (bfd_vma, _do_getl32, (unsigned char *addr));
PROTO (bfd_vma, _do_getb16, (unsigned char *addr));
PROTO (bfd_vma, _do_getl16, (unsigned char *addr));
PROTO (void, _do_putb64, (bfd_vma data, unsigned char *addr));
PROTO (void, _do_putl64, (bfd_vma data, unsigned char *addr));
PROTO (void, _do_putb32, (bfd_vma data, unsigned char *addr));
PROTO (void, _do_putl32, (bfd_vma data, unsigned char *addr));
PROTO (void, _do_putb16, (bfd_vma data, unsigned char *addr));
PROTO (void, _do_putl16, (bfd_vma data, unsigned char *addr));
PROTO (boolean, bfd_false, (bfd *ignore));
PROTO (boolean, bfd_true, (bfd *ignore));
PROTO (PTR, bfd_nullvoidptr, (bfd *ignore));
PROTO (int, bfd_0, (bfd *ignore));
PROTO (unsigned int, bfd_0u, (bfd *ignore));
PROTO (void, bfd_void, (bfd *ignore));
PROTO (bfd *,new_bfd_contained_in,(bfd *));
PROTO (boolean, _bfd_dummy_new_section_hook, (bfd *ignore, asection *newsect));
PROTO (char *, _bfd_dummy_core_file_failing_command, (bfd *abfd));
PROTO (int, _bfd_dummy_core_file_failing_signal, (bfd *abfd));
PROTO (boolean, _bfd_dummy_core_file_matches_executable_p, (bfd *core_bfd,
bfd *exec_bfd));
PROTO (bfd_target *, _bfd_dummy_target, (bfd *abfd));
PROTO (void, bfd_dont_truncate_arname, (bfd *abfd, CONST char *filename,
char *hdr));
PROTO (void, bfd_bsd_truncate_arname, (bfd *abfd, CONST char *filename,
char *hdr));
PROTO (void, bfd_gnu_truncate_arname, (bfd *abfd, CONST char *filename,
char *hdr));
PROTO (boolean, bsd_write_armap, (bfd *arch, unsigned int elength,
struct orl *map, int orl_count, int stridx));
PROTO (boolean, coff_write_armap, (bfd *arch, unsigned int elength,
struct orl *map, int orl_count, int stridx));
PROTO (bfd *, bfd_generic_openr_next_archived_file, (bfd *archive,
bfd *last_file));
PROTO(int, bfd_generic_stat_arch_elt, (bfd *, struct stat *));
PROTO(boolean, bfd_generic_get_section_contents,
(bfd *abfd, sec_ptr section, PTR location, file_ptr offset, bfd_size_type count));
/* Macros to tell if bfds are read or write enabled.
Note that bfds open for read may be scribbled into if the fd passed
to bfd_fdopenr is actually open both for read and write
simultaneously. However an output bfd will never be open for
read. Therefore sometimes you want to check bfd_read_p or
!bfd_read_p, and only sometimes bfd_write_p.
*/
#define bfd_read_p(abfd) ((abfd)->direction == read_direction || (abfd)->direction == both_direction)
#define bfd_write_p(abfd) ((abfd)->direction == write_direction || (abfd)->direction == both_direction)
PROTO (void, bfd_assert,(char*,int));
#define BFD_ASSERT(x) \
{ if (!(x)) bfd_assert(__FILE__,__LINE__); }
#define BFD_FAIL() \
{ bfd_assert(__FILE__,__LINE__); }
PROTO (FILE *, bfd_cache_lookup_worker, (bfd *));
extern bfd *bfd_last_cache;
/* Now Steve, what's the story here? */
#ifdef lint
#define itos(x) "l"
#define stoi(x) 1
#else
#define itos(x) ((char*)(x))
#define stoi(x) ((int)(x))
#endif
/* Generic routine for close_and_cleanup is really just bfd_true. */
#define bfd_generic_close_and_cleanup bfd_true
/* THE FOLLOWING IS EXTRACTED FROM THE SOURCE*/
/*:init.c*/
/* bfd_check_init
This routine is called before any other bfd function using initialized
data is used to ensure that the structures have been initialized.
Soon this function will go away, and the bfd library will assume that
bfd_init has been called.
*/
void EXFUN(bfd_check_init,(void));
/*
*/
/*:libbfd.c*/
/* *i bfd_log2
Return the log base 2 of the value supplied, rounded up. eg an arg
of 1025 would return 11.
*/
PROTO(bfd_vma, bfd_log2,(bfd_vma x));
/*
*/
/*:cache.c*/
/* BFD_CACHE_MAX_OPEN
The maxiumum number of files which the cache will keep open at one
time.
*/
#define BFD_CACHE_MAX_OPEN 10
/*
bfd_last_cache
Zero, or a pointer to the topmost BFD on the chain. This is used by
the @code{bfd_cache_lookup} macro in @file{libbfd.h} to determine when
it can avoid a function call.
*/
extern bfd *bfd_last_cache;
/*
bfd_cache_lookup
Checks to see if the required BFD is the same as the last one looked
up. If so then it can use the iostream in the BFD with impunity, since
it can't have changed since the last lookup, otherwise it has to
perform the complicated lookup function
*/
#define bfd_cache_lookup(x) \
((x)==bfd_last_cache? \
(FILE*)(bfd_last_cache->iostream): \
bfd_cache_lookup_worker(x))
/*
*i bfd_cache_init
Initialize a BFD by putting it on the cache LRU.
*/
PROTO(void, bfd_cache_init, (bfd *));
/*
*i bfd_cache_close
Remove the BFD from the cache. If the attached file is open, then close it too.
*/
PROTO(void, bfd_cache_close, (bfd *));
/*
*i bfd_open_file
Call the OS to open a file for this BFD. Returns the FILE *
(possibly null) that results from this operation. Sets up the
BFD so that future accesses know the file is open. If the FILE *
returned is null, then there is won't have been put in the cache, so
it won't have to be removed from it.
*/
PROTO(FILE *, bfd_open_file, (bfd *));
/*
*i bfd_cache_lookup_worker
Called when the macro @code{bfd_cache_lookup} fails to find a quick
answer. Finds a file descriptor for this BFD. If necessary, it open it.
If there are already more than BFD_CACHE_MAX_OPEN files open, it trys to close
one first, to avoid running out of file descriptors.
*/
PROTO(FILE *, bfd_cache_lookup_worker, (bfd *));
/*
*/
/*:reloc.c*/
/*:cpu-h8300.c*/
/*:cpu-i960.c*/
/*:cpu-empty.c*/
/*:howto.c*/
/*:archures.c*/
/* bfd_default_arch_struct
What bfds are seeded with
*/
extern bfd_arch_info_struct_type bfd_default_arch_struct;
/*
bfd_default_set_arch_mach
Set the architecture and machine type in a bfd. This finds the correct
pointer to structure and inserts it into the arch_info pointer.
*/
boolean EXFUN(bfd_default_set_arch_mach,(bfd *abfd,
enum bfd_architecture arch,
unsigned long mach));
/*
This routine initializes the architecture dispatch table by calling
all installed architecture packages and getting them to poke around.
*/
PROTO(void, bfd_arch_init,(void));
/*
bfd_arch_linkin
Link the provided arch info structure into the list
*/
void EXFUN(bfd_arch_linkin,(bfd_arch_info_struct_type *));
/*
bfd_default_compatible
The default function for testing for compatibility
*/
CONST bfd_arch_info_struct_type *EXFUN(bfd_default_compatible,
(CONST bfd_arch_info_struct_type *a,
CONST bfd_arch_info_struct_type *b));
/*
bfd_default_scan
The default function for working out whether this is an architecture
hit and a machine hit
*/
boolean EXFUN(bfd_default_scan,(CONST struct bfd_arch_info_struct *, CONST char *));
/*
*/
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