[deliverable/binutils-gdb.git] / bfd / libaout.h

/* BFD back-end data structures for a.out (and similar) files.
   Copyright 1990, 1991, 1992 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.  */

/* We try to encapsulate the differences in the various a.out file
   variants 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.  */

/* Parameterize the a.out code based on whether it is being built
   for a 32-bit architecture or a 64-bit architecture.  */
#if ARCH_SIZE==64
#define GET_WORD bfd_h_get_64
#define GET_SWORD (int64_type)GET_WORD
#define PUT_WORD bfd_h_put_64
#ifndef NAME
#define NAME(x,y) CAT3(x,_64_,y)
#endif
#define JNAME(x) CAT(x,_64)
#define BYTES_IN_WORD 8
#else /* ARCH_SIZE == 32 */
#define GET_WORD bfd_h_get_32
#define GET_SWORD (int32_type)GET_WORD
#define PUT_WORD bfd_h_put_32
#ifndef NAME
#define NAME(x,y) CAT3(x,_32_,y)
#endif
#define JNAME(x) CAT(x,_32)
#define BYTES_IN_WORD 4
#endif /* ARCH_SIZE==32 */

/* Declare these types at file level, since they are used in parameter
   lists, which have wierd scope.  */
struct external_exec;
struct internal_exec;

/* Back-end information for various a.out targets.  */
struct aout_backend_data
{
  /* Are ZMAGIC files mapped contiguously?  If so, the text section may
     need more padding, if the segment size (granularity for memory access
     control) is larger than the page size.  */
  unsigned char zmagic_mapped_contiguous;
  /* If this flag is set, ZMAGIC/NMAGIC file headers get mapped in with the
     text section, which starts immediately after the file header.
     If not, the text section starts on the next page.  */
  unsigned char text_includes_header;

  /* If the text section VMA isn't specified, and we need an absolute
     address, use this as the default.  If we're producing a relocatable
     file, zero is always used.  */
  /* ?? Perhaps a callback would be a better choice?  Will this do anything
     reasonable for a format that handles multiple CPUs with different
     load addresses for each?  */
  bfd_vma default_text_vma;

  /* Callback for setting the page and segment sizes, if they can't be
     trivially determined from the architecture.  */
  boolean (*set_sizes) PARAMS ((bfd *));

  /* zmagic files only. For go32, the length of the exec header contributes
     to the size of the text section in the file for alignment purposes but
     does *not* get counted in the length of the text section. */
  unsigned char exec_header_not_counted;
};
#define aout_backend_info(abfd) \
	((CONST struct aout_backend_data *)((abfd)->xvec->backend_data))

/* This is the layout in memory of a "struct exec" while we process it.
   All 'lengths' are given as a number of bytes.
   All 'alignments' are for relinkable files only;  an alignment of
	'n' indicates the corresponding segment must begin at an
	address that is a multiple of (2**n).  */

struct internal_exec
{
    long a_info;		/* Magic number and flags, packed */
    bfd_vma a_text;		/* length of text, in bytes  */
    bfd_vma a_data;		/* length of data, in bytes  */
    bfd_vma a_bss;		/* length of uninitialized data area in mem */
    bfd_vma a_syms;		/* length of symbol table data in file */
    bfd_vma a_entry;		/* start address */
    bfd_vma a_trsize;		/* length of text's relocation info, in bytes */
    bfd_vma a_drsize;		/* length of data's relocation info, in bytes */
    /* Added for i960 */
    bfd_vma a_tload;		/* Text runtime load address */
    bfd_vma a_dload;		/* Data runtime load address */
    unsigned char a_talign;	/* Alignment of text segment */
    unsigned char a_dalign;	/* Alignment of data segment */
    unsigned char a_balign;	/* Alignment of bss segment */
    char a_relaxable;           /* Enough info for linker relax */
};

/* Magic number is written 
< MSB        >
3130292827262524232221201918171615141312111009080706050403020100
< FLAGS      >< MACHINE TYPE ><  MAGIC NUMBER		       >
*/
enum machine_type {
  M_UNKNOWN = 0,
  M_68010 = 1,
  M_68020 = 2,
  M_SPARC = 3,
  /* skip a bunch so we don't run into any of suns numbers */
  M_386 = 100,
  M_29K = 101,          /* AMD 29000 */
  M_MIPS1 = 151,        /* MIPS R2000/R3000 binary */
  M_MIPS2 = 152,        /* MIPS R4000/R6000 binary */
  M_HP200 = 200,	/* HP 200 (68010) BSD binary */
  M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */
  M_HPUX = (0x20c % 256)/* HP 200/300 HPUX binary */
};

#define N_DYNAMIC(exec) ((exec).a_info & 0x8000000)

#define N_MAGIC(exec) ((exec).a_info & 0xffff)
#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
#define N_SET_INFO(exec, magic, type, flags) \
((exec).a_info = ((magic) & 0xffff) \
 | (((int)(type) & 0xff) << 16) \
 | (((flags) & 0xff) << 24))

#define N_SET_MAGIC(exec, magic) \
((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))

#define N_SET_MACHTYPE(exec, machtype) \
((exec).a_info = \
 ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))

#define N_SET_FLAGS(exec, flags) \
((exec).a_info = \
 ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))

typedef struct aout_symbol {
  asymbol symbol;
  short desc;
  char other;
  unsigned char type;
} aout_symbol_type;

/* The `tdata' struct for all a.out-like object file formats.
   Various things depend on this struct being around any time an a.out
   file is being handled.  An example is dbxread.c in GDB.  */

struct aoutdata {
  struct internal_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 in external form */
  unsigned reloc_entry_size;

  /* Size of a symbol table entry in external form */
  unsigned symbol_entry_size;

  /* Page size - needed for alignment of demand paged files. */
  unsigned long page_size;

  /* Segment size - needed for alignment of demand paged files. */
  unsigned long segment_size;

  unsigned exec_bytes_size;
  unsigned vma_adjusted : 1;

  /* used when a bfd supports several highly similar formats */
  enum {
    default_format = 0,
    gnu_encap_format } subformat;

  enum {
    undecided_magic = 0,
    z_magic,
    o_magic,
    n_magic } magic;
};

struct  aout_data_struct {
    struct aoutdata a;
    struct internal_exec e;
};

#define	adata(bfd)		((bfd)->tdata.aout_data->a)
#define	exec_hdr(bfd)		(adata(bfd).hdr)
#define	obj_aout_symbols(bfd)	(adata(bfd).symbols)
#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)
#define	obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size)
#define obj_aout_subformat(bfd)	(adata(bfd).subformat)

/* 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))

/* Prototype declarations for functions defined in aoutx.h  */

boolean
NAME(aout,squirt_out_relocs) PARAMS ((bfd *abfd, asection *section));

bfd_target *
NAME(aout,some_aout_object_p) PARAMS ((bfd *abfd,
			struct internal_exec *execp,
			bfd_target * (*callback)(bfd *)));

boolean
NAME(aout,mkobject) PARAMS ((bfd *abfd));

enum machine_type
NAME(aout,machine_type) PARAMS ((enum bfd_architecture arch,
				 unsigned long machine));

boolean
NAME(aout,set_arch_mach) PARAMS ((bfd *abfd, enum bfd_architecture arch,
		 		  unsigned long machine));

boolean
NAME(aout,new_section_hook) PARAMS ((bfd *abfd, asection *newsect));

boolean
NAME(aout,set_section_contents) PARAMS ((bfd *abfd, sec_ptr section,
			 PTR location, file_ptr offset, bfd_size_type count));

asymbol *
NAME(aout,make_empty_symbol) PARAMS ((bfd *abfd));

boolean
NAME(aout,slurp_symbol_table) PARAMS ((bfd *abfd));

void
NAME(aout,write_syms) PARAMS ((bfd *abfd));

void
NAME(aout,reclaim_symbol_table) PARAMS ((bfd *abfd));

unsigned int
NAME(aout,get_symtab_upper_bound) PARAMS ((bfd *abfd));

unsigned int
NAME(aout,get_symtab) PARAMS ((bfd *abfd, asymbol **location));

boolean
NAME(aout,slurp_reloc_table) PARAMS ((bfd *abfd, sec_ptr asect,
				      asymbol **symbols));

unsigned int
NAME(aout,canonicalize_reloc) PARAMS ((bfd *abfd, sec_ptr section,
				       arelent **relptr, asymbol **symbols));

unsigned int
NAME(aout,get_reloc_upper_bound) PARAMS ((bfd *abfd, sec_ptr asect));

void
NAME(aout,reclaim_reloc) PARAMS ((bfd *ignore_abfd, sec_ptr ignore));

alent *
NAME(aout,get_lineno) PARAMS ((bfd *ignore_abfd, asymbol *ignore_symbol));

void
NAME(aout,print_symbol) PARAMS ((bfd *ignore_abfd, PTR file,
			    asymbol *symbol, bfd_print_symbol_type how));

void
NAME(aout,get_symbol_info) PARAMS ((bfd *ignore_abfd,
                           asymbol *symbol, symbol_info *ret));

boolean
NAME(aout,close_and_cleanup) PARAMS ((bfd *abfd));

boolean
NAME(aout,find_nearest_line) PARAMS ((bfd *abfd, asection *section,
      asymbol **symbols, bfd_vma offset, CONST char **filename_ptr,
      CONST char **functionname_ptr, unsigned int *line_ptr));

int
NAME(aout,sizeof_headers) PARAMS ((bfd *abfd, boolean exec));

boolean
NAME(aout,adjust_sizes_and_vmas) PARAMS ((bfd *abfd,
       bfd_size_type *text_size, file_ptr *text_end));

void
NAME(aout,swap_exec_header_in) PARAMS ((bfd *abfd,
       struct external_exec *raw_bytes, struct internal_exec *execp));

void
NAME(aout,swap_exec_header_out) PARAMS ((bfd *abfd,
       struct internal_exec *execp, struct external_exec *raw_bytes));

/* Prototypes for functions in stab-syms.c. */

CONST char *
aout_stab_name PARAMS ((int code));

/* A.out uses the generic versions of these routines... */

#define	aout_32_get_section_contents	bfd_generic_get_section_contents
#define	aout_32_close_and_cleanup	bfd_generic_close_and_cleanup

#define	aout_64_get_section_contents	bfd_generic_get_section_contents
#define	aout_64_close_and_cleanup	bfd_generic_close_and_cleanup
#ifndef NO_WRITE_HEADER_KLUDGE
#define NO_WRITE_HEADER_KLUDGE 0
#endif

#ifndef WRITE_HEADERS
#define WRITE_HEADERS(abfd, execp)					      \
      {									      \
	bfd_size_type text_size; /* dummy vars */			      \
	file_ptr text_end;						      \
	if (adata(abfd).magic == undecided_magic)			      \
	  NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);     \
    									      \
	execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;	      \
	execp->a_entry = bfd_get_start_address (abfd);			      \
    									      \
	execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *		      \
			   obj_reloc_entry_size (abfd));		      \
	execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *		      \
			   obj_reloc_entry_size (abfd));		      \
	NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);	      \
									      \
	bfd_seek (abfd, (file_ptr) 0, SEEK_SET);			      \
	bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd);	      \
	/* Now write out reloc info, followed by syms and strings */	      \
  									      \
	if (bfd_get_symcount (abfd) != 0) 				      \
	    {								      \
	      bfd_seek (abfd, (file_ptr)(N_SYMOFF(*execp)), SEEK_SET);	      \
									      \
	      NAME(aout,write_syms)(abfd);				      \
									      \
	      bfd_seek (abfd, (file_ptr)(N_TRELOFF(*execp)), SEEK_SET);	      \
									      \
	      if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) return false; \
	      bfd_seek (abfd, (file_ptr)(N_DRELOFF(*execp)), SEEK_SET);	      \
									      \
	      if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd))) return false; \
	    }								      \
      }									      
#endif
Commit	Line	Data
69ebee86	1	/* BFD back-end data structures for a.out (and similar) files.
1f29e30b	2	Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
9e2dad8e	3	Written by Cygnus Support.
69ebee86	4
9e2dad8e	5	This file is part of BFD, the Binary File Descriptor library.
69ebee86	6
9e2dad8e	7	This program is free software; you can redistribute it and/or modify
4a81b561	8	it under the terms of the GNU General Public License as published by
9e2dad8e JG	9	the Free Software Foundation; either version 2 of the License, or
9e2dad8e JG	10	(at your option) any later version.
4a81b561	11
9e2dad8e	12	This program is distributed in the hope that it will be useful,
4a81b561 DHW	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
9e2dad8e JG	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	20
	21	/* We try to encapsulate the differences in the various a.out file
	22	variants in a few routines, and otherwise share large masses of code.
	23	This means we only have to fix bugs in one place, most of the time. */
4a81b561	24
359f1dee JG	25	/* Parameterize the a.out code based on whether it is being built
359f1dee JG	26	for a 32-bit architecture or a 64-bit architecture. */
c0e5039e JG	27	#if ARCH_SIZE==64
	28	#define GET_WORD bfd_h_get_64
	29	#define GET_SWORD (int64_type)GET_WORD
	30	#define PUT_WORD bfd_h_put_64
c2623b7d	31	#ifndef NAME
c0e5039e	32	#define NAME(x,y) CAT3(x,_64_,y)
c2623b7d	33	#endif
c0e5039e JG	34	#define JNAME(x) CAT(x,_64)
c0e5039e JG	35	#define BYTES_IN_WORD 8
c2623b7d	36	#else /* ARCH_SIZE == 32 */
c0e5039e JG	37	#define GET_WORD bfd_h_get_32
	38	#define GET_SWORD (int32_type)GET_WORD
	39	#define PUT_WORD bfd_h_put_32
c2623b7d	40	#ifndef NAME
c0e5039e	41	#define NAME(x,y) CAT3(x,_32_,y)
c2623b7d	42	#endif
c0e5039e JG	43	#define JNAME(x) CAT(x,_32)
c0e5039e JG	44	#define BYTES_IN_WORD 4
c2623b7d	45	#endif /* ARCH_SIZE==32 */
c0e5039e	46
9e2dad8e JG	47	/* Declare these types at file level, since they are used in parameter
	48	lists, which have wierd scope. */
	49	struct external_exec;
	50	struct internal_exec;
	51
ce07dd7c KR	52	/* Back-end information for various a.out targets. */
	53	struct aout_backend_data
	54	{
	55	/* Are ZMAGIC files mapped contiguously? If so, the text section may
	56	need more padding, if the segment size (granularity for memory access
	57	control) is larger than the page size. */
7f90aa8b	58	unsigned char zmagic_mapped_contiguous;
ce07dd7c KR	59	/* If this flag is set, ZMAGIC/NMAGIC file headers get mapped in with the
	60	text section, which starts immediately after the file header.
	61	If not, the text section starts on the next page. */
7f90aa8b	62	unsigned char text_includes_header;
ce07dd7c KR	63
	64	/* If the text section VMA isn't specified, and we need an absolute
	65	address, use this as the default. If we're producing a relocatable
	66	file, zero is always used. */
	67	/* ?? Perhaps a callback would be a better choice? Will this do anything
	68	reasonable for a format that handles multiple CPUs with different
	69	load addresses for each? */
	70	bfd_vma default_text_vma;
7f90aa8b ME	71
	72	/* Callback for setting the page and segment sizes, if they can't be
	73	trivially determined from the architecture. */
	74	boolean (set_sizes) PARAMS ((bfd ));
	75
	76	/* zmagic files only. For go32, the length of the exec header contributes
	77	to the size of the text section in the file for alignment purposes but
	78	does not get counted in the length of the text section. */
	79	unsigned char exec_header_not_counted;
ce07dd7c KR	80	};
	81	#define aout_backend_info(abfd) \
	82	((CONST struct aout_backend_data *)((abfd)->xvec->backend_data))
	83
0fa4f690 JG	84	/* This is the layout in memory of a "struct exec" while we process it.
	85	All 'lengths' are given as a number of bytes.
	86	All 'alignments' are for relinkable files only; an alignment of
	87	'n' indicates the corresponding segment must begin at an
	88	address that is a multiple of (2*n). /
	89
	90	struct internal_exec
	91	{
	92	long a_info; /* Magic number and flags, packed */
	93	bfd_vma a_text; /* length of text, in bytes */
	94	bfd_vma a_data; /* length of data, in bytes */
	95	bfd_vma a_bss; /* length of uninitialized data area in mem */
	96	bfd_vma a_syms; /* length of symbol table data in file */
	97	bfd_vma a_entry; /* start address */
	98	bfd_vma a_trsize; /* length of text's relocation info, in bytes */
	99	bfd_vma a_drsize; /* length of data's relocation info, in bytes */
	100	/* Added for i960 */
	101	bfd_vma a_tload; /* Text runtime load address */
	102	bfd_vma a_dload; /* Data runtime load address */
	103	unsigned char a_talign; /* Alignment of text segment */
	104	unsigned char a_dalign; /* Alignment of data segment */
	105	unsigned char a_balign; /* Alignment of bss segment */
7f90aa8b	106	char a_relaxable; /* Enough info for linker relax */
0fa4f690 JG	107	};
	108
	109	/* Magic number is written
	110	< MSB >
	111	3130292827262524232221201918171615141312111009080706050403020100
	112	< FLAGS >< MACHINE TYPE >< MAGIC NUMBER >
	113	*/
	114	enum machine_type {
	115	M_UNKNOWN = 0,
	116	M_68010 = 1,
	117	M_68020 = 2,
	118	M_SPARC = 3,
9eb73722	119	/* skip a bunch so we don't run into any of suns numbers */
0fa4f690	120	M_386 = 100,
9eb73722 KR	121	M_29K = 101, /* AMD 29000 */
	122	M_MIPS1 = 151, /* MIPS R2000/R3000 binary */
	123	M_MIPS2 = 152, /* MIPS R4000/R6000 binary */
0fa4f690 JG	124	M_HP200 = 200, /* HP 200 (68010) BSD binary */
0fa4f690 JG	125	M_HP300 = (300 % 256), /* HP 300 (68020+68881) BSD binary */
ce07dd7c	126	M_HPUX = (0x20c % 256)/* HP 200/300 HPUX binary */
0fa4f690 JG	127	};
	128
	129	#define N_DYNAMIC(exec) ((exec).a_info & 0x8000000)
	130
	131	#define N_MAGIC(exec) ((exec).a_info & 0xffff)
	132	#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
	133	#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
	134	#define N_SET_INFO(exec, magic, type, flags) \
	135	((exec).a_info = ((magic) & 0xffff) \
	136	\| (((int)(type) & 0xff) << 16) \
	137	\| (((flags) & 0xff) << 24))
	138
	139	#define N_SET_MAGIC(exec, magic) \
	140	((exec).a_info = (((exec).a_info & 0xffff0000) \| ((magic) & 0xffff)))
	141
	142	#define N_SET_MACHTYPE(exec, machtype) \
	143	((exec).a_info = \
	144	((exec).a_info&0xff00ffff) \| ((((int)(machtype))&0xff) << 16))
	145
	146	#define N_SET_FLAGS(exec, flags) \
	147	((exec).a_info = \
	148	((exec).a_info&0x00ffffff) \| (((flags) & 0xff) << 24))
	149
69ebee86	150	typedef struct aout_symbol {
4a81b561 DHW	151	asymbol symbol;
4a81b561 DHW	152	short desc;
69ebee86 JG	153	char other;
69ebee86 JG	154	unsigned char type;
4a81b561 DHW	155	} aout_symbol_type;
4a81b561 DHW	156
0fa4f690 JG	157	/* The `tdata' struct for all a.out-like object file formats.
	158	Various things depend on this struct being around any time an a.out
	159	file is being handled. An example is dbxread.c in GDB. */
	160
69ebee86	161	struct aoutdata {
0fa4f690	162	struct internal_exec hdr; / exec file header */
4a81b561	163	aout_symbol_type symbols; / symtab for input bfd */
4a81b561 DHW	164
	165	/* For ease, we do this */
	166	asection *textsec;
	167	asection *datasec;
	168	asection *bsssec;
	169
	170	/* We remember these offsets so that after check_file_format, we have
	171	no dependencies on the particular format of the exec_hdr. */
	172	file_ptr sym_filepos;
	173	file_ptr str_filepos;
4a81b561	174
0fa4f690	175	/* Size of a relocation entry in external form */
69ebee86	176	unsigned reloc_entry_size;
4a81b561	177
0fa4f690 JG	178	/* Size of a symbol table entry in external form */
0fa4f690 JG	179	unsigned symbol_entry_size;
4a81b561	180
0fa4f690 JG	181	/* Page size - needed for alignment of demand paged files. */
0fa4f690 JG	182	unsigned long page_size;
4a81b561	183
0fa4f690 JG	184	/* Segment size - needed for alignment of demand paged files. */
0fa4f690 JG	185	unsigned long segment_size;
4a81b561	186
0fa4f690	187	unsigned exec_bytes_size;
ce07dd7c KR	188	unsigned vma_adjusted : 1;
ce07dd7c KR	189
9eb73722 KR	190	/* used when a bfd supports several highly similar formats */
	191	enum {
	192	default_format = 0,
	193	gnu_encap_format } subformat;
	194
ce07dd7c KR	195	enum {
	196	undecided_magic = 0,
	197	z_magic,
	198	o_magic,
	199	n_magic } magic;
0fa4f690	200	};
4a81b561	201
ce07dd7c KR	202	struct aout_data_struct {
	203	struct aoutdata a;
	204	struct internal_exec e;
	205	};
	206
	207	#define adata(bfd) ((bfd)->tdata.aout_data->a)
	208	#define exec_hdr(bfd) (adata(bfd).hdr)
	209	#define obj_aout_symbols(bfd) (adata(bfd).symbols)
	210	#define obj_textsec(bfd) (adata(bfd).textsec)
	211	#define obj_datasec(bfd) (adata(bfd).datasec)
	212	#define obj_bsssec(bfd) (adata(bfd).bsssec)
	213	#define obj_sym_filepos(bfd) (adata(bfd).sym_filepos)
	214	#define obj_str_filepos(bfd) (adata(bfd).str_filepos)
	215	#define obj_reloc_entry_size(bfd) (adata(bfd).reloc_entry_size)
	216	#define obj_symbol_entry_size(bfd) (adata(bfd).symbol_entry_size)
9eb73722	217	#define obj_aout_subformat(bfd) (adata(bfd).subformat)
69ebee86	218
0fa4f690 JG	219	/* We take the address of the first element of an asymbol to ensure that the
	220	macro is only ever applied to an asymbol */
	221	#define aout_symbol(asymbol) ((aout_symbol_type *)(&(asymbol)->the_bfd))
69ebee86	222
c0e5039e	223	/* Prototype declarations for functions defined in aoutx.h */
69ebee86	224
1f29e30b JG	225	boolean
1f29e30b JG	226	NAME(aout,squirt_out_relocs) PARAMS ((bfd abfd, asection section));
69ebee86	227
1f29e30b JG	228	bfd_target *
	229	NAME(aout,some_aout_object_p) PARAMS ((bfd *abfd,
	230	struct internal_exec *execp,
	231	bfd_target * (callback)(bfd )));
69ebee86	232
1f29e30b JG	233	boolean
	234	NAME(aout,mkobject) PARAMS ((bfd *abfd));
	235
	236	enum machine_type
	237	NAME(aout,machine_type) PARAMS ((enum bfd_architecture arch,
	238	unsigned long machine));
	239
	240	boolean
	241	NAME(aout,set_arch_mach) PARAMS ((bfd *abfd, enum bfd_architecture arch,
	242	unsigned long machine));
	243
	244	boolean
	245	NAME(aout,new_section_hook) PARAMS ((bfd abfd, asection newsect));
	246
	247	boolean
	248	NAME(aout,set_section_contents) PARAMS ((bfd *abfd, sec_ptr section,
c0e5039e JG	249	PTR location, file_ptr offset, bfd_size_type count));
c0e5039e JG	250
1f29e30b JG	251	asymbol *
	252	NAME(aout,make_empty_symbol) PARAMS ((bfd *abfd));
	253
	254	boolean
	255	NAME(aout,slurp_symbol_table) PARAMS ((bfd *abfd));
	256
	257	void
	258	NAME(aout,write_syms) PARAMS ((bfd *abfd));
	259
	260	void
	261	NAME(aout,reclaim_symbol_table) PARAMS ((bfd *abfd));
	262
	263	unsigned int
	264	NAME(aout,get_symtab_upper_bound) PARAMS ((bfd *abfd));
	265
	266	unsigned int
	267	NAME(aout,get_symtab) PARAMS ((bfd abfd, asymbol *location));
	268
	269	boolean
	270	NAME(aout,slurp_reloc_table) PARAMS ((bfd *abfd, sec_ptr asect,
	271	asymbol **symbols));
	272
	273	unsigned int
	274	NAME(aout,canonicalize_reloc) PARAMS ((bfd *abfd, sec_ptr section,
	275	arelent relptr, asymbol symbols));
	276
	277	unsigned int
	278	NAME(aout,get_reloc_upper_bound) PARAMS ((bfd *abfd, sec_ptr asect));
	279
	280	void
	281	NAME(aout,reclaim_reloc) PARAMS ((bfd *ignore_abfd, sec_ptr ignore));
	282
	283	alent *
	284	NAME(aout,get_lineno) PARAMS ((bfd ignore_abfd, asymbol ignore_symbol));
	285
	286	void
	287	NAME(aout,print_symbol) PARAMS ((bfd *ignore_abfd, PTR file,
9e2dad8e	288	asymbol *symbol, bfd_print_symbol_type how));
1f29e30b	289
c2623b7d KR	290	void
	291	NAME(aout,get_symbol_info) PARAMS ((bfd *ignore_abfd,
	292	asymbol symbol, symbol_info ret));
	293
1f29e30b JG	294	boolean
	295	NAME(aout,close_and_cleanup) PARAMS ((bfd *abfd));
	296
	297	boolean
	298	NAME(aout,find_nearest_line) PARAMS ((bfd abfd, asection section,
69ebee86 JG	299	asymbol symbols, bfd_vma offset, CONST char filename_ptr,
69ebee86 JG	300	CONST char *functionname_ptr, unsigned int line_ptr));
69ebee86	301
1f29e30b JG	302	int
	303	NAME(aout,sizeof_headers) PARAMS ((bfd *abfd, boolean exec));
	304
	305	boolean
	306	NAME(aout,adjust_sizes_and_vmas) PARAMS ((bfd *abfd,
	307	bfd_size_type text_size, file_ptr text_end));
	308
	309	void
	310	NAME(aout,swap_exec_header_in) PARAMS ((bfd *abfd,
	311	struct external_exec raw_bytes, struct internal_exec execp));
69ebee86	312
1f29e30b JG	313	void
	314	NAME(aout,swap_exec_header_out) PARAMS ((bfd *abfd,
	315	struct internal_exec execp, struct external_exec raw_bytes));
69ebee86	316
7de245d3 PB	317	/* Prototypes for functions in stab-syms.c. */
7de245d3 PB	318
9eb73722	319	CONST char *
1f29e30b	320	aout_stab_name PARAMS ((int code));
7de245d3	321
69ebee86 JG	322	/* A.out uses the generic versions of these routines... */
69ebee86 JG	323
c0e5039e JG	324	#define aout_32_get_section_contents bfd_generic_get_section_contents
	325	#define aout_32_close_and_cleanup bfd_generic_close_and_cleanup
	326
	327	#define aout_64_get_section_contents bfd_generic_get_section_contents
	328	#define aout_64_close_and_cleanup bfd_generic_close_and_cleanup
ce07dd7c KR	329	#ifndef NO_WRITE_HEADER_KLUDGE
	330	#define NO_WRITE_HEADER_KLUDGE 0
	331	#endif
c0e5039e	332
ce07dd7c	333	#ifndef WRITE_HEADERS
c0e5039e JG	334	#define WRITE_HEADERS(abfd, execp) \
c0e5039e JG	335	{ \
ce07dd7c KR	336	bfd_size_type text_size; /* dummy vars */ \
	337	file_ptr text_end; \
	338	if (adata(abfd).magic == undecided_magic) \
	339	NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end); \
c0e5039e	340	\
0fa4f690	341	execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; \
c0e5039e JG	342	execp->a_entry = bfd_get_start_address (abfd); \
	343	\
	344	execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * \
	345	obj_reloc_entry_size (abfd)); \
	346	execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * \
	347	obj_reloc_entry_size (abfd)); \
	348	NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes); \
	349	\
f8e01940	350	bfd_seek (abfd, (file_ptr) 0, SEEK_SET); \
c0e5039e JG	351	bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd); \
	352	/* Now write out reloc info, followed by syms and strings */ \
	353	\
	354	if (bfd_get_symcount (abfd) != 0) \
	355	{ \
f8e01940	356	bfd_seek (abfd, (file_ptr)(N_SYMOFF(*execp)), SEEK_SET); \
c0e5039e JG	357	\
	358	NAME(aout,write_syms)(abfd); \
	359	\
f8e01940	360	bfd_seek (abfd, (file_ptr)(N_TRELOFF(*execp)), SEEK_SET); \
c0e5039e JG	361	\
c0e5039e JG	362	if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) return false; \
f8e01940	363	bfd_seek (abfd, (file_ptr)(N_DRELOFF(*execp)), SEEK_SET); \
c0e5039e JG	364	\
	365	if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd))) return false; \
	366	} \
	367	}
ce07dd7c	368	#endif