[deliverable/binutils-gdb.git] / include / coff / alpha.h

/* ECOFF support on Alpha machines.
   coff/ecoff.h must be included before this file.

   Copyright 2001, 2005 Free Software Foundation, Inc.

   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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
   
/********************** FILE HEADER **********************/

struct external_filehdr
{
  unsigned char f_magic[2];	/* magic number			*/
  unsigned char f_nscns[2];	/* number of sections		*/
  unsigned char f_timdat[4];	/* time & date stamp		*/
  unsigned char f_symptr[8];	/* file pointer to symtab	*/
  unsigned char f_nsyms[4];	/* number of symtab entries	*/
  unsigned char f_opthdr[2];	/* sizeof(optional hdr)		*/
  unsigned char f_flags[2];	/* flags			*/
};

/* Magic numbers are defined in coff/ecoff.h.  */
#define ALPHA_ECOFF_BADMAG(x) \
  ((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD)

#define ALPHA_ECOFF_COMPRESSEDMAG(x) \
  ((x).f_magic == ALPHA_MAGIC_COMPRESSED)

/* The object type is encoded in the f_flags.  */
#define F_ALPHA_OBJECT_TYPE_MASK	0x3000
#define F_ALPHA_NO_SHARED		0x1000
#define F_ALPHA_SHARABLE		0x2000
#define F_ALPHA_CALL_SHARED		0x3000

#define	FILHDR	struct external_filehdr
#define	FILHSZ	24

/********************** AOUT "OPTIONAL HEADER" **********************/

typedef struct external_aouthdr
{
  unsigned char magic[2];	/* type of file				*/
  unsigned char	vstamp[2];	/* version stamp			*/
  unsigned char bldrev[2];	/* ?? */
  unsigned char padding[2];	/* pad to quadword boundary		*/
  unsigned char	tsize[8];	/* text size in bytes			*/
  unsigned char	dsize[8];	/* initialized data "  "		*/
  unsigned char	bsize[8];	/* uninitialized data "   "		*/
  unsigned char	entry[8];	/* entry pt.				*/
  unsigned char text_start[8];	/* base of text used for this file */
  unsigned char data_start[8];	/* base of data used for this file */
  unsigned char bss_start[8];	/* base of bss used for this file */
  unsigned char gprmask[4];	/* bitmask of general registers used */
  unsigned char fprmask[4];	/* bitmask of floating point registers used */
  unsigned char gp_value[8];	/* value for gp register */
} AOUTHDR;

/* compute size of a header */

#define AOUTSZ 80
#define AOUTHDRSZ 80

/********************** SECTION HEADER **********************/

struct external_scnhdr
{
  unsigned char	s_name[8];	/* section name			*/
  unsigned char	s_paddr[8];	/* physical address, aliased s_nlib */
  unsigned char	s_vaddr[8];	/* virtual address		*/
  unsigned char	s_size[8];	/* section size			*/
  unsigned char	s_scnptr[8];	/* file ptr to raw data for section */
  unsigned char	s_relptr[8];	/* file ptr to relocation	*/
  unsigned char	s_lnnoptr[8];	/* file ptr to line numbers	*/
  unsigned char	s_nreloc[2];	/* number of relocation entries	*/
  unsigned char	s_nlnno[2];	/* number of line number entries*/
  unsigned char	s_flags[4];	/* flags			*/
};

#define	SCNHDR	struct external_scnhdr
#define	SCNHSZ	64

/********************** RELOCATION DIRECTIVES **********************/

struct external_reloc 
{
  unsigned char r_vaddr[8];
  unsigned char r_symndx[4];
  unsigned char r_bits[4];
};

#define RELOC struct external_reloc
#define RELSZ 16

/* Constants to unpack the r_bits field.  The Alpha seems to always be
   little endian, so I haven't bothered to define big endian variants
   of these.  */

#define RELOC_BITS0_TYPE_LITTLE			0xff
#define RELOC_BITS0_TYPE_SH_LITTLE		0

#define RELOC_BITS1_EXTERN_LITTLE		0x01

#define RELOC_BITS1_OFFSET_LITTLE		0x7e
#define RELOC_BITS1_OFFSET_SH_LITTLE		1

#define RELOC_BITS1_RESERVED_LITTLE		0x80
#define RELOC_BITS1_RESERVED_SH_LITTLE		7
#define RELOC_BITS2_RESERVED_LITTLE		0xff
#define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE	1
#define RELOC_BITS3_RESERVED_LITTLE		0x03
#define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE	9

#define RELOC_BITS3_SIZE_LITTLE			0xfc
#define RELOC_BITS3_SIZE_SH_LITTLE		2

/* The r_type field in a reloc is one of the following values.  */
#define ALPHA_R_IGNORE		0
#define ALPHA_R_REFLONG		1
#define ALPHA_R_REFQUAD		2
#define ALPHA_R_GPREL32		3
#define ALPHA_R_LITERAL		4
#define ALPHA_R_LITUSE		5
#define ALPHA_R_GPDISP		6
#define ALPHA_R_BRADDR		7
#define ALPHA_R_HINT		8
#define ALPHA_R_SREL16		9
#define ALPHA_R_SREL32	       10
#define ALPHA_R_SREL64	       11
#define ALPHA_R_OP_PUSH	       12
#define ALPHA_R_OP_STORE       13
#define ALPHA_R_OP_PSUB	       14
#define ALPHA_R_OP_PRSHIFT     15
#define ALPHA_R_GPVALUE	       16
#define ALPHA_R_GPRELHIGH      17
#define ALPHA_R_GPRELLOW       18
#define ALPHA_R_IMMED          19

/* Overloaded reloc value used by Net- and OpenBSD.  */
#define ALPHA_R_LITERALSLEAZY  17

/* With ALPHA_R_LITUSE, the r_size field is one of the following values.  */
#define ALPHA_R_LU_BASE         1
#define ALPHA_R_LU_BYTOFF       2
#define ALPHA_R_LU_JSR          3

/* With ALPHA_R_IMMED, the r_size field is one of the following values.  */
#define ALPHA_R_IMMED_GP_16     1
#define ALPHA_R_IMMED_GP_HI32   2
#define ALPHA_R_IMMED_SCN_HI32  3
#define ALPHA_R_IMMED_BR_HI32   4
#define ALPHA_R_IMMED_LO32      5

/********************** SYMBOLIC INFORMATION **********************/

/* Written by John Gilmore.  */

/* ECOFF uses COFF-like section structures, but its own symbol format.
   This file defines the symbol format in fields whose size and alignment
   will not vary on different host systems.  */

/* File header as a set of bytes */

struct hdr_ext
{
	unsigned char 	h_magic[2];
	unsigned char	h_vstamp[2];
	unsigned char	h_ilineMax[4];
	unsigned char	h_idnMax[4];
	unsigned char	h_ipdMax[4];
	unsigned char	h_isymMax[4];
	unsigned char	h_ioptMax[4];
	unsigned char	h_iauxMax[4];
	unsigned char	h_issMax[4];
	unsigned char	h_issExtMax[4];
	unsigned char	h_ifdMax[4];
	unsigned char	h_crfd[4];
	unsigned char	h_iextMax[4];
	unsigned char	h_cbLine[8];
	unsigned char	h_cbLineOffset[8];
	unsigned char	h_cbDnOffset[8];
	unsigned char	h_cbPdOffset[8];
	unsigned char	h_cbSymOffset[8];
	unsigned char	h_cbOptOffset[8];
	unsigned char	h_cbAuxOffset[8];
	unsigned char	h_cbSsOffset[8];
	unsigned char	h_cbSsExtOffset[8];
	unsigned char	h_cbFdOffset[8];
	unsigned char	h_cbRfdOffset[8];
	unsigned char	h_cbExtOffset[8];
};

/* File descriptor external record */

struct fdr_ext
{
	unsigned char	f_adr[8];
	unsigned char	f_cbLineOffset[8];
	unsigned char	f_cbLine[8];
	unsigned char	f_cbSs[8];
	unsigned char	f_rss[4];
	unsigned char	f_issBase[4];
	unsigned char	f_isymBase[4];
	unsigned char	f_csym[4];
	unsigned char	f_ilineBase[4];
	unsigned char	f_cline[4];
	unsigned char	f_ioptBase[4];
	unsigned char	f_copt[4];
	unsigned char	f_ipdFirst[4];
	unsigned char	f_cpd[4];
	unsigned char	f_iauxBase[4];
	unsigned char	f_caux[4];
	unsigned char	f_rfdBase[4];
	unsigned char	f_crfd[4];
	unsigned char	f_bits1[1];
	unsigned char	f_bits2[3];
	unsigned char	f_padding[4];
};

#define	FDR_BITS1_LANG_BIG		0xF8
#define	FDR_BITS1_LANG_SH_BIG		3
#define	FDR_BITS1_LANG_LITTLE		0x1F
#define	FDR_BITS1_LANG_SH_LITTLE	0

#define	FDR_BITS1_FMERGE_BIG		0x04
#define	FDR_BITS1_FMERGE_LITTLE		0x20

#define	FDR_BITS1_FREADIN_BIG		0x02
#define	FDR_BITS1_FREADIN_LITTLE	0x40

#define	FDR_BITS1_FBIGENDIAN_BIG	0x01
#define	FDR_BITS1_FBIGENDIAN_LITTLE	0x80

#define	FDR_BITS2_GLEVEL_BIG		0xC0
#define	FDR_BITS2_GLEVEL_SH_BIG		6
#define	FDR_BITS2_GLEVEL_LITTLE		0x03
#define	FDR_BITS2_GLEVEL_SH_LITTLE	0

/* We ignore the `reserved' field in bits2. */

/* Procedure descriptor external record */

struct pdr_ext {
	unsigned char	p_adr[8];
	unsigned char	p_cbLineOffset[8];
	unsigned char	p_isym[4];
	unsigned char	p_iline[4];
	unsigned char	p_regmask[4];
	unsigned char	p_regoffset[4];
	unsigned char	p_iopt[4];
	unsigned char	p_fregmask[4];
	unsigned char	p_fregoffset[4];
	unsigned char	p_frameoffset[4];
	unsigned char	p_lnLow[4];
	unsigned char	p_lnHigh[4];
	unsigned char	p_gp_prologue[1];
	unsigned char	p_bits1[1];
	unsigned char	p_bits2[1];
	unsigned char	p_localoff[1];
	unsigned char	p_framereg[2];
	unsigned char	p_pcreg[2];
};

#define PDR_BITS1_GP_USED_BIG		0x80
#define PDR_BITS1_REG_FRAME_BIG		0x40
#define PDR_BITS1_PROF_BIG		0x20
#define PDR_BITS1_RESERVED_BIG		0x1f
#define PDR_BITS1_RESERVED_SH_LEFT_BIG	8
#define PDR_BITS2_RESERVED_BIG		0xff
#define PDR_BITS2_RESERVED_SH_BIG	0

#define PDR_BITS1_GP_USED_LITTLE	0x01
#define PDR_BITS1_REG_FRAME_LITTLE	0x02
#define PDR_BITS1_PROF_LITTLE		0x04
#define PDR_BITS1_RESERVED_LITTLE	0xf8
#define PDR_BITS1_RESERVED_SH_LITTLE	3
#define PDR_BITS2_RESERVED_LITTLE	0xff
#define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5

/* Line numbers */

struct line_ext {
	unsigned char	l_line[4];
};

/* Symbol external record */

struct sym_ext {
	unsigned char	s_value[8];
	unsigned char	s_iss[4];
	unsigned char	s_bits1[1];
	unsigned char	s_bits2[1];
	unsigned char	s_bits3[1];
	unsigned char	s_bits4[1];
};

#define	SYM_BITS1_ST_BIG		0xFC
#define	SYM_BITS1_ST_SH_BIG		2
#define	SYM_BITS1_ST_LITTLE		0x3F
#define	SYM_BITS1_ST_SH_LITTLE		0

#define	SYM_BITS1_SC_BIG		0x03
#define	SYM_BITS1_SC_SH_LEFT_BIG	3
#define	SYM_BITS1_SC_LITTLE		0xC0
#define	SYM_BITS1_SC_SH_LITTLE		6

#define	SYM_BITS2_SC_BIG		0xE0
#define	SYM_BITS2_SC_SH_BIG		5
#define	SYM_BITS2_SC_LITTLE		0x07
#define	SYM_BITS2_SC_SH_LEFT_LITTLE	2

#define	SYM_BITS2_RESERVED_BIG		0x10
#define	SYM_BITS2_RESERVED_LITTLE	0x08

#define	SYM_BITS2_INDEX_BIG		0x0F
#define	SYM_BITS2_INDEX_SH_LEFT_BIG	16
#define	SYM_BITS2_INDEX_LITTLE		0xF0
#define	SYM_BITS2_INDEX_SH_LITTLE	4

#define	SYM_BITS3_INDEX_SH_LEFT_BIG	8
#define	SYM_BITS3_INDEX_SH_LEFT_LITTLE	4

#define	SYM_BITS4_INDEX_SH_LEFT_BIG	0
#define	SYM_BITS4_INDEX_SH_LEFT_LITTLE	12

/* External symbol external record */

struct ext_ext {
	struct	sym_ext es_asym;
	unsigned char	es_bits1[1];
	unsigned char	es_bits2[3];
	unsigned char	es_ifd[4];
};

#define	EXT_BITS1_JMPTBL_BIG		0x80
#define	EXT_BITS1_JMPTBL_LITTLE		0x01

#define	EXT_BITS1_COBOL_MAIN_BIG	0x40
#define	EXT_BITS1_COBOL_MAIN_LITTLE	0x02

#define	EXT_BITS1_WEAKEXT_BIG		0x20
#define	EXT_BITS1_WEAKEXT_LITTLE	0x04

/* Dense numbers external record */

struct dnr_ext {
	unsigned char	d_rfd[4];
	unsigned char	d_index[4];
};

/* Relative file descriptor */

struct rfd_ext {
  unsigned char	rfd[4];
};

/* Optimizer symbol external record */

struct opt_ext {
  unsigned char o_bits1[1];
  unsigned char o_bits2[1];
  unsigned char o_bits3[1];
  unsigned char o_bits4[1];
  struct rndx_ext o_rndx;
  unsigned char o_offset[4];
};

#define OPT_BITS2_VALUE_SH_LEFT_BIG	16
#define OPT_BITS2_VALUE_SH_LEFT_LITTLE	0

#define OPT_BITS3_VALUE_SH_LEFT_BIG	8
#define OPT_BITS3_VALUE_SH_LEFT_LITTLE	8

#define OPT_BITS4_VALUE_SH_LEFT_BIG	0
#define OPT_BITS4_VALUE_SH_LEFT_LITTLE	16
Commit	Line	Data
252b5132	1	/* ECOFF support on Alpha machines.
4f1d9bd8 NC	2	coff/ecoff.h must be included before this file.
4f1d9bd8 NC	3
15ac1d4f	4	Copyright 2001, 2005 Free Software Foundation, Inc.
4f1d9bd8 NC	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
e172dbf8	18	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
4f1d9bd8	19
252b5132 RH	20	/******************** FILE HEADER ********************/
252b5132 RH	21
4f1d9bd8 NC	22	struct external_filehdr
4f1d9bd8 NC	23	{
252b5132 RH	24	unsigned char f_magic[2]; /* magic number */
	25	unsigned char f_nscns[2]; /* number of sections */
	26	unsigned char f_timdat[4]; /* time & date stamp */
	27	unsigned char f_symptr[8]; /* file pointer to symtab */
	28	unsigned char f_nsyms[4]; /* number of symtab entries */
	29	unsigned char f_opthdr[2]; /* sizeof(optional hdr) */
	30	unsigned char f_flags[2]; /* flags */
	31	};
	32
	33	/* Magic numbers are defined in coff/ecoff.h. */
	34	#define ALPHA_ECOFF_BADMAG(x) \
	35	((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD)
	36
15ac1d4f NC	37	#define ALPHA_ECOFF_COMPRESSEDMAG(x) \
	38	((x).f_magic == ALPHA_MAGIC_COMPRESSED)
	39
252b5132 RH	40	/* The object type is encoded in the f_flags. */
	41	#define F_ALPHA_OBJECT_TYPE_MASK 0x3000
	42	#define F_ALPHA_NO_SHARED 0x1000
	43	#define F_ALPHA_SHARABLE 0x2000
	44	#define F_ALPHA_CALL_SHARED 0x3000
	45
	46	#define FILHDR struct external_filehdr
	47	#define FILHSZ 24
	48
	49	/******************** AOUT "OPTIONAL HEADER" ********************/
	50
252b5132 RH	51	typedef struct external_aouthdr
	52	{
	53	unsigned char magic[2]; /* type of file */
	54	unsigned char vstamp[2]; /* version stamp */
	55	unsigned char bldrev[2]; /* ?? */
	56	unsigned char padding[2]; /* pad to quadword boundary */
	57	unsigned char tsize[8]; /* text size in bytes */
	58	unsigned char dsize[8]; /* initialized data " " */
	59	unsigned char bsize[8]; /* uninitialized data " " */
	60	unsigned char entry[8]; /* entry pt. */
	61	unsigned char text_start[8]; /* base of text used for this file */
	62	unsigned char data_start[8]; /* base of data used for this file */
	63	unsigned char bss_start[8]; /* base of bss used for this file */
	64	unsigned char gprmask[4]; /* bitmask of general registers used */
	65	unsigned char fprmask[4]; /* bitmask of floating point registers used */
	66	unsigned char gp_value[8]; /* value for gp register */
	67	} AOUTHDR;
	68
	69	/* compute size of a header */
	70
	71	#define AOUTSZ 80
	72	#define AOUTHDRSZ 80
	73
	74	/******************** SECTION HEADER ********************/
	75
4f1d9bd8 NC	76	struct external_scnhdr
4f1d9bd8 NC	77	{
252b5132 RH	78	unsigned char s_name[8]; /* section name */
	79	unsigned char s_paddr[8]; /* physical address, aliased s_nlib */
	80	unsigned char s_vaddr[8]; /* virtual address */
	81	unsigned char s_size[8]; /* section size */
	82	unsigned char s_scnptr[8]; /* file ptr to raw data for section */
	83	unsigned char s_relptr[8]; /* file ptr to relocation */
	84	unsigned char s_lnnoptr[8]; /* file ptr to line numbers */
	85	unsigned char s_nreloc[2]; /* number of relocation entries */
	86	unsigned char s_nlnno[2]; /* number of line number entries*/
	87	unsigned char s_flags[4]; /* flags */
	88	};
	89
	90	#define SCNHDR struct external_scnhdr
	91	#define SCNHSZ 64
	92
	93	/******************** RELOCATION DIRECTIVES ********************/
	94
4f1d9bd8 NC	95	struct external_reloc
4f1d9bd8 NC	96	{
252b5132 RH	97	unsigned char r_vaddr[8];
	98	unsigned char r_symndx[4];
	99	unsigned char r_bits[4];
	100	};
	101
	102	#define RELOC struct external_reloc
	103	#define RELSZ 16
	104
	105	/* Constants to unpack the r_bits field. The Alpha seems to always be
	106	little endian, so I haven't bothered to define big endian variants
	107	of these. */
	108
	109	#define RELOC_BITS0_TYPE_LITTLE 0xff
	110	#define RELOC_BITS0_TYPE_SH_LITTLE 0
	111
	112	#define RELOC_BITS1_EXTERN_LITTLE 0x01
	113
	114	#define RELOC_BITS1_OFFSET_LITTLE 0x7e
	115	#define RELOC_BITS1_OFFSET_SH_LITTLE 1
	116
	117	#define RELOC_BITS1_RESERVED_LITTLE 0x80
	118	#define RELOC_BITS1_RESERVED_SH_LITTLE 7
	119	#define RELOC_BITS2_RESERVED_LITTLE 0xff
	120	#define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE 1
	121	#define RELOC_BITS3_RESERVED_LITTLE 0x03
	122	#define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE 9
	123
	124	#define RELOC_BITS3_SIZE_LITTLE 0xfc
	125	#define RELOC_BITS3_SIZE_SH_LITTLE 2
	126
	127	/* The r_type field in a reloc is one of the following values. */
	128	#define ALPHA_R_IGNORE 0
	129	#define ALPHA_R_REFLONG 1
	130	#define ALPHA_R_REFQUAD 2
	131	#define ALPHA_R_GPREL32 3
	132	#define ALPHA_R_LITERAL 4
	133	#define ALPHA_R_LITUSE 5
	134	#define ALPHA_R_GPDISP 6
	135	#define ALPHA_R_BRADDR 7
	136	#define ALPHA_R_HINT 8
	137	#define ALPHA_R_SREL16 9
	138	#define ALPHA_R_SREL32 10
	139	#define ALPHA_R_SREL64 11
	140	#define ALPHA_R_OP_PUSH 12
	141	#define ALPHA_R_OP_STORE 13
	142	#define ALPHA_R_OP_PSUB 14
	143	#define ALPHA_R_OP_PRSHIFT 15
	144	#define ALPHA_R_GPVALUE 16
	145	#define ALPHA_R_GPRELHIGH 17
	146	#define ALPHA_R_GPRELLOW 18
	147	#define ALPHA_R_IMMED 19
	148
	149	/* Overloaded reloc value used by Net- and OpenBSD. */
	150	#define ALPHA_R_LITERALSLEAZY 17
	151
	152	/* With ALPHA_R_LITUSE, the r_size field is one of the following values. */
	153	#define ALPHA_R_LU_BASE 1
	154	#define ALPHA_R_LU_BYTOFF 2
	155	#define ALPHA_R_LU_JSR 3
	156
	157	/* With ALPHA_R_IMMED, the r_size field is one of the following values. */
	158	#define ALPHA_R_IMMED_GP_16 1
	159	#define ALPHA_R_IMMED_GP_HI32 2
	160	#define ALPHA_R_IMMED_SCN_HI32 3
161	#define ALPHA_R_IMMED_BR_HI32 4
162	#define ALPHA_R_IMMED_LO32 5
163
164	/******************** SYMBOLIC INFORMATION ********************/
165
166	/* Written by John Gilmore. */
167
168	/* ECOFF uses COFF-like section structures, but its own symbol format.
169	This file defines the symbol format in fields whose size and alignment
170	will not vary on different host systems. */
171
172	/* File header as a set of bytes */
173
4f1d9bd8 NC	174	struct hdr_ext
4f1d9bd8 NC	175	{
252b5132 RH	176	unsigned char h_magic[2];
	177	unsigned char h_vstamp[2];
	178	unsigned char h_ilineMax[4];
	179	unsigned char h_idnMax[4];
	180	unsigned char h_ipdMax[4];
	181	unsigned char h_isymMax[4];
	182	unsigned char h_ioptMax[4];
	183	unsigned char h_iauxMax[4];
	184	unsigned char h_issMax[4];
	185	unsigned char h_issExtMax[4];
	186	unsigned char h_ifdMax[4];
	187	unsigned char h_crfd[4];
	188	unsigned char h_iextMax[4];
	189	unsigned char h_cbLine[8];
	190	unsigned char h_cbLineOffset[8];
	191	unsigned char h_cbDnOffset[8];
	192	unsigned char h_cbPdOffset[8];
	193	unsigned char h_cbSymOffset[8];
	194	unsigned char h_cbOptOffset[8];
	195	unsigned char h_cbAuxOffset[8];
	196	unsigned char h_cbSsOffset[8];
	197	unsigned char h_cbSsExtOffset[8];
	198	unsigned char h_cbFdOffset[8];
	199	unsigned char h_cbRfdOffset[8];
	200	unsigned char h_cbExtOffset[8];
	201	};
	202
	203	/* File descriptor external record */
	204
4f1d9bd8 NC	205	struct fdr_ext
4f1d9bd8 NC	206	{
252b5132 RH	207	unsigned char f_adr[8];
	208	unsigned char f_cbLineOffset[8];
	209	unsigned char f_cbLine[8];
	210	unsigned char f_cbSs[8];
	211	unsigned char f_rss[4];
	212	unsigned char f_issBase[4];
	213	unsigned char f_isymBase[4];
	214	unsigned char f_csym[4];
	215	unsigned char f_ilineBase[4];
	216	unsigned char f_cline[4];
	217	unsigned char f_ioptBase[4];
	218	unsigned char f_copt[4];
	219	unsigned char f_ipdFirst[4];
	220	unsigned char f_cpd[4];
	221	unsigned char f_iauxBase[4];
	222	unsigned char f_caux[4];
	223	unsigned char f_rfdBase[4];
	224	unsigned char f_crfd[4];
	225	unsigned char f_bits1[1];
	226	unsigned char f_bits2[3];
	227	unsigned char f_padding[4];
	228	};
	229
	230	#define FDR_BITS1_LANG_BIG 0xF8
	231	#define FDR_BITS1_LANG_SH_BIG 3
	232	#define FDR_BITS1_LANG_LITTLE 0x1F
	233	#define FDR_BITS1_LANG_SH_LITTLE 0
	234
	235	#define FDR_BITS1_FMERGE_BIG 0x04
	236	#define FDR_BITS1_FMERGE_LITTLE 0x20
	237
	238	#define FDR_BITS1_FREADIN_BIG 0x02
	239	#define FDR_BITS1_FREADIN_LITTLE 0x40
	240
	241	#define FDR_BITS1_FBIGENDIAN_BIG 0x01
	242	#define FDR_BITS1_FBIGENDIAN_LITTLE 0x80
	243
	244	#define FDR_BITS2_GLEVEL_BIG 0xC0
	245	#define FDR_BITS2_GLEVEL_SH_BIG 6
	246	#define FDR_BITS2_GLEVEL_LITTLE 0x03
	247	#define FDR_BITS2_GLEVEL_SH_LITTLE 0
	248
	249	/* We ignore the `reserved' field in bits2. */
	250
	251	/* Procedure descriptor external record */
	252
	253	struct pdr_ext {
	254	unsigned char p_adr[8];
	255	unsigned char p_cbLineOffset[8];
	256	unsigned char p_isym[4];
	257	unsigned char p_iline[4];
	258	unsigned char p_regmask[4];
	259	unsigned char p_regoffset[4];
	260	unsigned char p_iopt[4];
	261	unsigned char p_fregmask[4];
	262	unsigned char p_fregoffset[4];
	263	unsigned char p_frameoffset[4];
	264	unsigned char p_lnLow[4];
	265	unsigned char p_lnHigh[4];
	266	unsigned char p_gp_prologue[1];
	267	unsigned char p_bits1[1];
	268	unsigned char p_bits2[1];
	269	unsigned char p_localoff[1];
	270	unsigned char p_framereg[2];
271	unsigned char p_pcreg[2];
272	};
273
274	#define PDR_BITS1_GP_USED_BIG 0x80
275	#define PDR_BITS1_REG_FRAME_BIG 0x40
276	#define PDR_BITS1_PROF_BIG 0x20
277	#define PDR_BITS1_RESERVED_BIG 0x1f
278	#define PDR_BITS1_RESERVED_SH_LEFT_BIG 8
279	#define PDR_BITS2_RESERVED_BIG 0xff
280	#define PDR_BITS2_RESERVED_SH_BIG 0
281
282	#define PDR_BITS1_GP_USED_LITTLE 0x01
283	#define PDR_BITS1_REG_FRAME_LITTLE 0x02
284	#define PDR_BITS1_PROF_LITTLE 0x04
285	#define PDR_BITS1_RESERVED_LITTLE 0xf8
286	#define PDR_BITS1_RESERVED_SH_LITTLE 3
287	#define PDR_BITS2_RESERVED_LITTLE 0xff
288	#define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5
289
290	/* Line numbers */
291
292	struct line_ext {
293	unsigned char l_line[4];
294	};
295
296	/* Symbol external record */
297
298	struct sym_ext {
299	unsigned char s_value[8];
300	unsigned char s_iss[4];
301	unsigned char s_bits1[1];
302	unsigned char s_bits2[1];
303	unsigned char s_bits3[1];
304	unsigned char s_bits4[1];
305	};
306
307	#define SYM_BITS1_ST_BIG 0xFC
308	#define SYM_BITS1_ST_SH_BIG 2
309	#define SYM_BITS1_ST_LITTLE 0x3F
310	#define SYM_BITS1_ST_SH_LITTLE 0
311
312	#define SYM_BITS1_SC_BIG 0x03
313	#define SYM_BITS1_SC_SH_LEFT_BIG 3
314	#define SYM_BITS1_SC_LITTLE 0xC0
315	#define SYM_BITS1_SC_SH_LITTLE 6
316
317	#define SYM_BITS2_SC_BIG 0xE0
318	#define SYM_BITS2_SC_SH_BIG 5
319	#define SYM_BITS2_SC_LITTLE 0x07
320	#define SYM_BITS2_SC_SH_LEFT_LITTLE 2
321
322	#define SYM_BITS2_RESERVED_BIG 0x10
323	#define SYM_BITS2_RESERVED_LITTLE 0x08
324
325	#define SYM_BITS2_INDEX_BIG 0x0F
326	#define SYM_BITS2_INDEX_SH_LEFT_BIG 16
327	#define SYM_BITS2_INDEX_LITTLE 0xF0
328	#define SYM_BITS2_INDEX_SH_LITTLE 4
329
330	#define SYM_BITS3_INDEX_SH_LEFT_BIG 8
331	#define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4
332
333	#define SYM_BITS4_INDEX_SH_LEFT_BIG 0
334	#define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12
335
336	/* External symbol external record */
337
338	struct ext_ext {
339	struct sym_ext es_asym;
340	unsigned char es_bits1[1];
341	unsigned char es_bits2[3];
342	unsigned char es_ifd[4];
343	};
344
345	#define EXT_BITS1_JMPTBL_BIG 0x80
346	#define EXT_BITS1_JMPTBL_LITTLE 0x01
347
348	#define EXT_BITS1_COBOL_MAIN_BIG 0x40
349	#define EXT_BITS1_COBOL_MAIN_LITTLE 0x02
350
351	#define EXT_BITS1_WEAKEXT_BIG 0x20
352	#define EXT_BITS1_WEAKEXT_LITTLE 0x04
353
354	/* Dense numbers external record */
355
356	struct dnr_ext {
357	unsigned char d_rfd[4];
358	unsigned char d_index[4];
359	};
360
361	/* Relative file descriptor */
362
363	struct rfd_ext {
364	unsigned char rfd[4];
365	};
366
367	/* Optimizer symbol external record */
368
369	struct opt_ext {
370	unsigned char o_bits1[1];
371	unsigned char o_bits2[1];
372	unsigned char o_bits3[1];
373	unsigned char o_bits4[1];
374	struct rndx_ext o_rndx;
375	unsigned char o_offset[4];
376	};
377
378	#define OPT_BITS2_VALUE_SH_LEFT_BIG 16
379	#define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0
380
381	#define OPT_BITS3_VALUE_SH_LEFT_BIG 8
382	#define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8
383
384	#define OPT_BITS4_VALUE_SH_LEFT_BIG 0
385	#define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16