[deliverable/binutils-gdb.git] / include / coff / rs6k64.h

/* IBM RS/6000 "XCOFF64" file definitions for BFD.
   Copyright (C) 2000 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
*/

/********************** FILE HEADER **********************/

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

        /* IBM RS/6000 */
#define U803XTOCMAGIC 0757	/* readonly text segments and TOC, XCOFF64 */

#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC)

#define	FILHDR	struct external_filehdr
#define	FILHSZ	24

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


typedef struct 
{
  unsigned char	magic[2];		/* type of file			*/
  unsigned char	vstamp[2];		/* version stamp		*/
  unsigned char	o_debugger[4];		/* reserved 			*/
  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	o_toc[8];	/* address of TOC */
  unsigned char	o_snentry[2];		/* section number of entry point */
  unsigned char	o_sntext[2];		/* section number of .text section */
  unsigned char	o_sndata[2];		/* section number of .data section */
  unsigned char	o_sntoc[2];		/* section number of TOC */
  unsigned char	o_snloader[2];		/* section number of .loader section */
  unsigned char	o_snbss[2];		/* section number of .bss section */
  unsigned char	o_algntext[2];		/* .text alignment */
  unsigned char	o_algndata[2];		/* .data alignment */
  unsigned char	o_modtype[2];		/* module type (??) */
  unsigned char o_cputype[2];		/* cpu type */
  unsigned char	o_resv2[4];		/* reserved 			*/
  unsigned char	tsize[8];		/* text size bytes, padded to FW bdry */
  unsigned char	dsize[8];		/* initialized data "  "	*/
  unsigned char	bsize[8];		/* uninitialized data "   "	*/
  unsigned char	entry[8];		/* entry pt.			*/
  unsigned char	o_maxstack[8];	/* max stack size (??) 		*/
  unsigned char o_maxdata[8];	/* max data size (??) 		*/
  unsigned char	o_resv3[16];		/* reserved 			*/
}
AOUTHDR;

#define AOUTSZ 120
#define SMALL_AOUTSZ (0)
#define AOUTHDRSZ 72

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


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


#define	SCNHDR	struct external_scnhdr

#define	SCNHSZ	72

/********************** LINE NUMBERS **********************/

/* 1 line number entry for every "breakpointable" source line in a section.
 * Line numbers are grouped on a per function basis; first entry in a function
 * grouping will have l_lnno = 0 and in place of physical address will be the
 * symbol table index of the function name.
 */
struct external_lineno {
	union {
		char l_symndx[4];/* function name symbol index, iff l_lnno == 0*/
		char l_paddr[8];	/* (physical) address of line number	*/
	} l_addr;
	char l_lnno[4];		/* line number		*/
};


#define	LINENO	struct external_lineno

#define	LINESZ	12


/********************** SYMBOLS **********************/

#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
#define E_FILNMLEN	14	/* # characters in a file name		*/
#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

struct external_syment 
{
  char e_value[8];
  char e_offset[4];
  char e_scnum[2];
  char e_type[2];
  char e_sclass[1];
  char e_numaux[1];
};


#define N_BTMASK	(017)
#define N_TMASK		(060)
#define N_BTSHFT	(4)
#define N_TSHIFT	(2)
  

union external_auxent {

    struct {
    	union {
	    struct {
		char x_lnno[4]; 	/* declaration line number */
		char x_size[2]; 	/* str/union/array size */
	    } x_lnsz;
	    struct {
		char x_lnnoptr[8];/* ptr to fcn line */
		char x_fsize[4];	 /* size of function */
		char x_endndx[4];	 /* entry ndx past block end */
	    } x_fcn;
 	} x_fcnary;
    } x_sym;
         
    union {
	char x_fname[E_FILNMLEN];
	struct {
	    char x_zeroes[4];
	    char x_offset[4];
	    char          x_pad[6];
	    unsigned char x_ftype[1];
	    unsigned char x_resv[2];
	} x_n;
    } x_file;

    struct {
	char x_exptr[8];
	char x_fsize[4];
	char x_endndx[4];
	char x_pad[1];
    } x_except;

    struct {
	    unsigned char x_scnlen_lo[4];
	    unsigned char x_parmhash[4];
	    unsigned char x_snhash[2];
	    unsigned char x_smtyp[1];
	    unsigned char x_smclas[1];
	    unsigned char x_scnlen_hi[4];
	    unsigned char x_pad[1];
    } x_csect;	

    struct {
	char x_pad[17];
	char x_auxtype[1];
    } x_auxtype;
};

#define	SYMENT	struct external_syment
#define	SYMESZ	18	
#define	AUXENT	union external_auxent
#define	AUXESZ	18
#define DBXMASK 0x80		/* for dbx storage mask */
#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)

/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h */
#define _AUX_EXCEPT     255
#define _AUX_FCN        254
#define _AUX_SYM        253
#define _AUX_FILE       252
#define _AUX_CSECT      251


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


struct external_reloc {
  char r_vaddr[8];
  char r_symndx[4];
  char r_size[1];
  char r_type[1];
};


#define RELOC struct external_reloc
#define RELSZ 14

#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4

/* The ldhdr structure.  This appears at the start of the .loader
   section.  */

struct external_ldhdr
{
  bfd_byte l_version[4];
  bfd_byte l_nsyms[4];
  bfd_byte l_nreloc[4];
  bfd_byte l_istlen[4];
  bfd_byte l_nimpid[4];
  bfd_byte l_stlen[4];
  bfd_byte l_impoff[8];
  bfd_byte l_stoff[8];
  bfd_byte l_symoff[8];
  bfd_byte l_rldoff[8];
};
#define LDHDRSZ (56)

struct external_ldsym
{
  bfd_byte l_value[8];
  bfd_byte l_offset[4];
  bfd_byte l_scnum[2];
  bfd_byte l_smtype[1];
  bfd_byte l_smclas[1];
  bfd_byte l_ifile[4];
  bfd_byte l_parm[4];
};

#define LDSYMSZ (24)

struct external_ldrel
{
  bfd_byte l_vaddr[8];
  bfd_byte l_rtype[2];
  bfd_byte l_rsecnm[2];
  bfd_byte l_symndx[4];
};

#define LDRELSZ (16)
Commit	Line	Data
7f6d05e8	1	/* IBM RS/6000 "XCOFF64" file definitions for BFD.
3dd657b1	2	Copyright (C) 2000 Free Software Foundation, Inc.
4f1d9bd8 NC	3
	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 2 of the License, or
	7	(at your option) any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, write to the Free Software
3dd657b1 TR	16	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	17	*/
	18
	19	/******************** FILE HEADER ********************/
	20
	21	struct external_filehdr {
	22	char f_magic[2]; /* magic number */
	23	char f_nscns[2]; /* number of sections */
	24	char f_timdat[4]; /* time & date stamp */
	25	char f_symptr[8];/* file pointer to symtab */
	26	char f_opthdr[2]; /* sizeof(optional hdr) */
	27	char f_flags[2]; /* flags */
	28	char f_nsyms[4]; /* number of symtab entries */
	29	};
7f6d05e8 CP	30
7f6d05e8 CP	31	/* IBM RS/6000 */
c6664dfb	32	#define U803XTOCMAGIC 0757 /* readonly text segments and TOC, XCOFF64 */
7f6d05e8	33
c6664dfb	34	#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC)
7f6d05e8	35
3dd657b1 TR	36	#define FILHDR struct external_filehdr
	37	#define FILHSZ 24
	38
7f6d05e8 CP	39	/******************** AOUT "OPTIONAL HEADER" ********************/
7f6d05e8 CP	40
3dd657b1	41
7f6d05e8 CP	42	typedef struct
7f6d05e8 CP	43	{
3dd657b1 TR	44	unsigned char magic[2]; /* type of file */
	45	unsigned char vstamp[2]; /* version stamp */
	46	unsigned char o_debugger[4]; /* reserved */
7f6d05e8 CP	47	unsigned char text_start[8]; /* base of text used for this file */
	48	unsigned char data_start[8]; /* base of data used for this file */
	49	unsigned char o_toc[8]; /* address of TOC */
3dd657b1 TR	50	unsigned char o_snentry[2]; /* section number of entry point */
	51	unsigned char o_sntext[2]; /* section number of .text section */
	52	unsigned char o_sndata[2]; /* section number of .data section */
	53	unsigned char o_sntoc[2]; /* section number of TOC */
	54	unsigned char o_snloader[2]; /* section number of .loader section */
	55	unsigned char o_snbss[2]; /* section number of .bss section */
	56	unsigned char o_algntext[2]; /* .text alignment */
	57	unsigned char o_algndata[2]; /* .data alignment */
	58	unsigned char o_modtype[2]; /* module type (??) */
	59	unsigned char o_cputype[2]; /* cpu type */
	60	unsigned char o_resv2[4]; /* reserved */
	61	unsigned char tsize[8]; /* text size bytes, padded to FW bdry */
	62	unsigned char dsize[8]; /* initialized data " " */
	63	unsigned char bsize[8]; /* uninitialized data " " */
	64	unsigned char entry[8]; /* entry pt. */
7f6d05e8 CP	65	unsigned char o_maxstack[8]; /* max stack size (??) */
7f6d05e8 CP	66	unsigned char o_maxdata[8]; /* max data size (??) */
3dd657b1	67	unsigned char o_resv3[16]; /* reserved */
7f6d05e8 CP	68	}
	69	AOUTHDR;
	70
c6664dfb	71	#define AOUTSZ 120
7f6d05e8 CP	72	#define SMALL_AOUTSZ (0)
	73	#define AOUTHDRSZ 72
	74
3dd657b1	75	/******************** SECTION HEADER ********************/
7f6d05e8 CP	76
7f6d05e8 CP	77
3dd657b1 TR	78	struct external_scnhdr {
3dd657b1 TR	79	char s_name[8]; /* section name */
7f6d05e8 CP	80	char s_paddr[8]; /* physical address, aliased s_nlib */
	81	char s_vaddr[8]; /* virtual address */
	82	char s_size[8]; /* section size */
	83	char s_scnptr[8]; /* file ptr to raw data for section */
	84	char s_relptr[8]; /* file ptr to relocation */
	85	char s_lnnoptr[8]; /* file ptr to line numbers */
	86	char s_nreloc[4]; /* number of relocation entries */
	87	char s_nlnno[4]; /* number of line number entries*/
3dd657b1 TR	88	char s_flags[4]; /* flags */
3dd657b1 TR	89	char s_pad[4]; /* padding */
7f6d05e8 CP	90	};
7f6d05e8 CP	91
7f6d05e8 CP	92
	93	#define SCNHDR struct external_scnhdr
	94
	95	#define SCNHSZ 72
	96
7f6d05e8 CP	97	/******************** LINE NUMBERS ********************/
	98
	99	/* 1 line number entry for every "breakpointable" source line in a section.
3dd657b1 TR	100	* Line numbers are grouped on a per function basis; first entry in a function
	101	* grouping will have l_lnno = 0 and in place of physical address will be the
	102	* symbol table index of the function name.
	103	*/
	104	struct external_lineno {
	105	union {
	106	char l_symndx[4];/* function name symbol index, iff l_lnno == 0*/
	107	char l_paddr[8]; /* (physical) address of line number */
	108	} l_addr;
	109	char l_lnno[4]; /* line number */
4f1d9bd8	110	};
7f6d05e8	111
3dd657b1	112
7f6d05e8	113	#define LINENO struct external_lineno
3dd657b1	114
7f6d05e8 CP	115	#define LINESZ 12
	116
	117
3dd657b1 TR	118	/******************** SYMBOLS ********************/
	119
	120	#define E_SYMNMLEN 8 /* # characters in a symbol name */
	121	#define E_FILNMLEN 14 /* # characters in a file name */
	122	#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
	123
	124	struct external_syment
7f6d05e8	125	{
3dd657b1 TR	126	char e_value[8];
	127	char e_offset[4];
	128	char e_scnum[2];
	129	char e_type[2];
	130	char e_sclass[1];
	131	char e_numaux[1];
	132	};
	133
	134
	135
	136	#define N_BTMASK (017)
	137	#define N_TMASK (060)
	138	#define N_BTSHFT (4)
	139	#define N_TSHIFT (2)
	140
	141
	142	union external_auxent {
	143
	144	struct {
	145	union {
	146	struct {
	147	char x_lnno[4]; /* declaration line number */
	148	char x_size[2]; /* str/union/array size */
	149	} x_lnsz;
	150	struct {
	151	char x_lnnoptr[8];/* ptr to fcn line */
	152	char x_fsize[4]; /* size of function */
	153	char x_endndx[4]; /* entry ndx past block end */
	154	} x_fcn;
	155	} x_fcnary;
	156	} x_sym;
7f6d05e8	157
3dd657b1 TR	158	union {
	159	char x_fname[E_FILNMLEN];
	160	struct {
	161	char x_zeroes[4];
	162	char x_offset[4];
	163	char x_pad[6];
	164	unsigned char x_ftype[1];
	165	unsigned char x_resv[2];
	166	} x_n;
	167	} x_file;
	168
	169	struct {
	170	char x_exptr[8];
	171	char x_fsize[4];
	172	char x_endndx[4];
	173	char x_pad[1];
	174	} x_except;
	175
	176	struct {
	177	unsigned char x_scnlen_lo[4];
	178	unsigned char x_parmhash[4];
	179	unsigned char x_snhash[2];
	180	unsigned char x_smtyp[1];
	181	unsigned char x_smclas[1];
	182	unsigned char x_scnlen_hi[4];
	183	unsigned char x_pad[1];
	184	} x_csect;
	185
	186	struct {
	187	char x_pad[17];
	188	char x_auxtype[1];
	189	} x_auxtype;
7f6d05e8 CP	190	};
7f6d05e8 CP	191
3dd657b1 TR	192	#define SYMENT struct external_syment
3dd657b1 TR	193	#define SYMESZ 18
7f6d05e8 CP	194	#define AUXENT union external_auxent
	195	#define AUXESZ 18
	196	#define DBXMASK 0x80 /* for dbx storage mask */
	197	#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
	198
	199	/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h */
	200	#define _AUX_EXCEPT 255
	201	#define _AUX_FCN 254
	202	#define _AUX_SYM 253
	203	#define _AUX_FILE 252
	204	#define _AUX_CSECT 251
	205
3dd657b1 TR	206
3dd657b1 TR	207
7f6d05e8 CP	208	/******************** RELOCATION DIRECTIVES ********************/
7f6d05e8 CP	209
3dd657b1 TR	210
3dd657b1 TR	211	struct external_reloc {
7f6d05e8 CP	212	char r_vaddr[8];
	213	char r_symndx[4];
	214	char r_size[1];
	215	char r_type[1];
	216	};
	217
3dd657b1	218
7f6d05e8 CP	219	#define RELOC struct external_reloc
	220	#define RELSZ 14
	221
	222	#define DEFAULT_DATA_SECTION_ALIGNMENT 4
	223	#define DEFAULT_BSS_SECTION_ALIGNMENT 4
	224	#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
	225	/* For new sections we havn't heard of before */
	226	#define DEFAULT_SECTION_ALIGNMENT 4
3dd657b1 TR	227
	228	/* The ldhdr structure. This appears at the start of the .loader
	229	section. */
	230
	231	struct external_ldhdr
	232	{
	233	bfd_byte l_version[4];
	234	bfd_byte l_nsyms[4];
	235	bfd_byte l_nreloc[4];
	236	bfd_byte l_istlen[4];
	237	bfd_byte l_nimpid[4];
	238	bfd_byte l_stlen[4];
	239	bfd_byte l_impoff[8];
	240	bfd_byte l_stoff[8];
	241	bfd_byte l_symoff[8];
	242	bfd_byte l_rldoff[8];
	243	};
	244	#define LDHDRSZ (56)
	245
	246	struct external_ldsym
	247	{
	248	bfd_byte l_value[8];
	249	bfd_byte l_offset[4];
	250	bfd_byte l_scnum[2];
	251	bfd_byte l_smtype[1];
	252	bfd_byte l_smclas[1];
	253	bfd_byte l_ifile[4];
	254	bfd_byte l_parm[4];
	255	};
	256
	257	#define LDSYMSZ (24)
	258
	259	struct external_ldrel
	260	{
	261	bfd_byte l_vaddr[8];
	262	bfd_byte l_rtype[2];
	263	bfd_byte l_rsecnm[2];
	264	bfd_byte l_symndx[4];
	265	};
	266
	267	#define LDRELSZ (16)