[deliverable/binutils-gdb.git] / include / internalcoff.h

/* Internal format of COFF object file data structures, for GNU BFD.
   This file is part of BFD, the Binary File Descriptor library.  */

/* First, make "signed char" work, even on old compilers. */
#ifndef signed
#ifndef __STDC__
#define	signed	/**/
#endif
#endif

/********************** FILE HEADER **********************/
struct internal_filehdr 
{
  unsigned short	f_magic; /* magic number			*/
  unsigned short	f_nscns; /* number of sections		*/
  long		f_timdat;	/* time & date stamp		*/
  long		f_symptr;	/* file pointer to symtab	*/
  long		f_nsyms;	/* number of symtab entries	*/
  unsigned short	f_opthdr; /* sizeof(optional hdr)		*/
  unsigned short	f_flags; /* flags			*/
};

/* Bits for f_flags:
 *	F_RELFLG	relocation info stripped from file
 *	F_EXEC		file is executable (no unresolved external references)
 *	F_LNNO		line numbers stripped from file
 *	F_LSYMS		local symbols stripped from file
 *	F_AR16WR	file is 16-bit little-endian
 *	F_AR32WR	file is 32-bit little-endian
 *	F_AR32W		file is 32-bit big-endian
 *	F_DYNLOAD	rs/6000 aix: dynamically loadable w/imports & exports
 *	F_SHROBJ	rs/6000 aix: file is a shared object
 */

#define	F_RELFLG	(0x0001)
#define	F_EXEC		(0x0002)
#define	F_LNNO		(0x0004)
#define	F_LSYMS		(0x0008)
#define	F_AR16WR	(0x0080)
#define	F_AR32WR	(0x0100)
#define	F_AR32W     	(0x0200)
#define	F_DYNLOAD	(0x1000)
#define	F_SHROBJ	(0x2000)

/********************** AOUT "OPTIONAL HEADER" **********************/
struct internal_aouthdr {
	short		magic;	/* type of file				*/
	short		vstamp;	/* version stamp			*/
	unsigned long	tsize;	/* text size in bytes, padded to FW bdry*/
	unsigned long	dsize;	/* initialized data "  "		*/
	unsigned long	bsize;	/* uninitialized data "   "		*/
	unsigned long	entry;	/* entry pt.				*/
	unsigned long	text_start;	/* base of text used for this file */
	unsigned long	data_start;	/* base of data used for this file */

	/* i960 stuff */
	unsigned long	tagentries;	/* number of tag entries to follow */

	/* RS/6000 stuff */
        unsigned long   o_toc;	/* address of TOC			*/
        short		o_snentry;	/* section number for entry point */
        short		o_sntext;	/* section number for text	*/
        short		o_sndata;	/* section number for data	*/
        short		o_sntoc;	/* section number for toc	*/
        short		o_snloader;	/* section number for loader section */
        short		o_snbss;	/* section number for bss	*/
        short		o_algntext;	/* max alignment for text	*/
        short		o_algndata;	/* max alignment for data	*/
        short		o_modtype;	/* Module type field, 1R,RE,RO	*/
        unsigned long   o_maxstack;     /* max stack size allowed.	*/
};

/********************** STORAGE CLASSES **********************/

#define C_EFCN		-1	/* physical end of function	*/
#define C_NULL		0
#define C_AUTO		1	/* automatic variable		*/
#define C_EXT		2	/* external symbol		*/
#define C_STAT		3	/* static			*/
#define C_REG		4	/* register variable		*/
#define C_EXTDEF	5	/* external definition		*/
#define C_LABEL		6	/* label			*/
#define C_ULABEL	7	/* undefined label		*/
#define C_MOS		8	/* member of structure		*/
#define C_ARG		9	/* function argument		*/
#define C_STRTAG	10	/* structure tag		*/
#define C_MOU		11	/* member of union		*/
#define C_UNTAG		12	/* union tag			*/
#define C_TPDEF		13	/* type definition		*/
#define C_USTATIC	14	/* undefined static		*/
#define C_ENTAG		15	/* enumeration tag		*/
#define C_MOE		16	/* member of enumeration	*/
#define C_REGPARM	17	/* register parameter		*/
#define C_FIELD		18	/* bit field			*/
#define C_AUTOARG	19	/* auto argument		*/
#define C_LASTENT	20	/* dummy entry (end of block)	*/
#define C_BLOCK		100	/* ".bb" or ".eb"		*/
#define C_FCN		101	/* ".bf" or ".ef"		*/
#define C_EOS		102	/* end of structure		*/
#define C_FILE		103	/* file name			*/
#define C_LINE		104	/* line # reformatted as symbol table entry */
#define C_ALIAS	 	105	/* duplicate tag		*/
#define C_HIDDEN	106	/* ext symbol in dmert public lib */

	/* New storage classes for 80960 */
 
/* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
#define C_LEAFPROC	108	/* Leaf procedure, "call" via BAL */

#define C_SCALL		107	/* Procedure reachable via system call */
#define C_LEAFEXT       108	/* External leaf */
#define C_LEAFSTAT      113     /* Static leaf */
#define C_OPTVAR	109	/* Optimized variable		*/
#define C_DEFINE	110	/* Preprocessor #define		*/
#define C_PRAGMA	111	/* Advice to compiler or linker	*/
#define C_SEGMENT	112	/* 80960 segment name		*/

	/* New storage classes for RS/6000 */
#define C_HIDEXT        107     /* Un-named external symbol */
#define C_BINCL         108     /* Marks beginning of include file */
#define C_EINCL         109     /* Marks ending of include file */

	/* storage classes for stab symbols for RS/6000 */
#define C_GSYM          ((signed char)0x80)
#define C_LSYM          ((signed char)0x81)
#define C_PSYM          ((signed char)0x82)
#define C_RSYM          ((signed char)0x83)
#define C_RPSYM         ((signed char)0x84)
#define C_STSYM         ((signed char)0x85)
#define C_TCSYM         ((signed char)0x86)
#define C_BCOMM         ((signed char)0x87)
#define C_ECOML         ((signed char)0x88)
#define C_ECOMM         ((signed char)0x89)
#define C_DECL          ((signed char)0x8c)
#define C_ENTRY         ((signed char)0x8d)
#define C_FUN           ((signed char)0x8e)
#define C_BSTAT         ((signed char)0x8f)
#define C_ESTAT         ((signed char)0x90)

/********************** SECTION HEADER **********************/
struct internal_scnhdr {
	char		s_name[8];	/* section name			*/
	long		s_paddr;	/* physical address, aliased s_nlib */
	long		s_vaddr;	/* virtual address		*/
	long		s_size;		/* section size			*/
	long		s_scnptr;	/* file ptr to raw data for section */
	long		s_relptr;	/* file ptr to relocation	*/
	long		s_lnnoptr;	/* file ptr to line numbers	*/
	unsigned long 	s_nreloc;	/* number of relocation entries	*/
	unsigned long   s_nlnno;	/* number of line number entries*/
	long		s_flags;	/* flags			*/
#ifdef I960
	long		s_align;	
#endif
};


/*
 * s_flags "type"
 */
#define STYP_REG	 (0x0000) /* "regular": allocated, relocated, loaded */
#define STYP_DSECT	 (0x0001) /* "dummy":  relocated only*/
#define STYP_NOLOAD	 (0x0002) /* "noload": allocated, relocated, not loaded */
#define STYP_GROUP	 (0x0004) /* "grouped": formed of input sections */
#define STYP_PAD	 (0x0008) /* "padding": not allocated, not relocated, loaded */
#define STYP_COPY	 (0x0010) /* "copy": for decision function used by field update;  not allocated, not relocated,
				     loaded; reloc & lineno entries processed normally */
#define STYP_TEXT	 (0x0020) /* section contains text only */
#define S_SHRSEG	 (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
				     will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
				     update all process invocations. */
#define STYP_DATA	 (0x0040) /* section contains data only */
#define STYP_BSS	 (0x0080) /* section contains bss only */
#define S_NEWFCN	 (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
#define STYP_INFO	 (0x0200) /* comment: not allocated not relocated, not loaded */
#define STYP_OVER	 (0x0400) /* overlay: relocated not allocated or loaded */
#define STYP_LIB	 (0x0800) /* for .lib: same as INFO */
#define STYP_MERGE	 (0x2000) /* merge section -- combines with text, data or bss sections only */
#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
				     word of contiguous bytes beginning on a word boundary. */
/********************** 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 internal_lineno {
	union {
		long l_symndx;	/* function name symbol index, iff l_lnno == 0*/
		long l_paddr;	/* (physical) address of line number	*/
	} l_addr;
	unsigned long	l_lnno;	/* line number		*/
};


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

#define SYMNMLEN	8	/* # characters in a symbol name	*/
#define FILNMLEN	14	/* # characters in a file name		*/
#define DIMNUM		4	/* # array dimensions in auxiliary entry */

struct internal_syment {
	union {
		char	_n_name[SYMNMLEN];	/* old COFF version	*/
		struct {
			long	_n_zeroes;	/* new == 0		*/
			long	_n_offset;	/* offset into string table */
		} _n_n;
		char	*_n_nptr[2];	/* allows for overlaying	*/
	} _n;
	long		n_value;	/* value of symbol		*/
	short		n_scnum;	/* section number		*/
	unsigned short	n_flags;	/* copy of flags from filhdr	*/
	unsigned short	n_type;		/* type and derived type	*/
	signed char	n_sclass;	/* storage class		*/
	char		n_numaux;	/* number of aux. entries	*/
};
#define n_name		_n._n_name
#define n_zeroes	_n._n_n._n_zeroes
#define n_offset	_n._n_n._n_offset


/* Relocatable symbols have number of the section in which they are defined,
   or one of the following: */

#define N_UNDEF	((short)0)  /* undefined symbol */
#define N_ABS	((short)-1) /* value of symbol is absolute */
#define N_DEBUG	((short)-2) /* debugging symbol -- value is meaningless */
#define N_TV	((short)-3) /* indicates symbol needs preload transfer vector */
#define P_TV	((short)-4) /* indicates symbol needs postload transfer vector*/

/*
 * Type of a symbol, in low N bits of the word
 */
#define T_NULL		0
#define T_VOID		1	/* function argument (only used by compiler) */
#define T_CHAR		2	/* character		*/
#define T_SHORT		3	/* short integer	*/
#define T_INT		4	/* integer		*/
#define T_LONG		5	/* long integer		*/
#define T_FLOAT		6	/* floating point	*/
#define T_DOUBLE	7	/* double word		*/
#define T_STRUCT	8	/* structure 		*/
#define T_UNION		9	/* union 		*/
#define T_ENUM		10	/* enumeration 		*/
#define T_MOE		11	/* member of enumeration*/
#define T_UCHAR		12	/* unsigned character	*/
#define T_USHORT	13	/* unsigned short	*/
#define T_UINT		14	/* unsigned integer	*/
#define T_ULONG		15	/* unsigned long	*/
#define T_LNGDBL	16	/* long double		*/

/*
 * derived types, in n_type
*/
#define DT_NON		(0)	/* no derived type */
#define DT_PTR		(1)	/* pointer */
#define DT_FCN		(2)	/* function */
#define DT_ARY		(3)	/* array */

#define BTYPE(x)	((x) & N_BTMASK)

#define ISPTR(x)	(((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
#define ISFCN(x)	(((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
#define ISARY(x)	(((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
#define ISTAG(x)	((x)==C_STRTAG||(x)==C_UNTAG||(x)==C_ENTAG)
#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))


union internal_auxent 
{
  struct {

    union {
      long l;			/* str, un, or enum tag indx */
      struct coff_ptr_struct *p;
    } x_tagndx;

    union {
      struct {
	unsigned short x_lnno;	/* declaration line number */
	unsigned short x_size;	/* str/union/array size */
      } x_lnsz;
      long x_fsize;		/* size of function */
    } x_misc;

    union {
      struct {			/* if ISFCN, tag, or .bb */
	long x_lnnoptr;		/* ptr to fcn line # */
	union { 		/* entry ndx past block end */
	  long  l;
	  struct coff_ptr_struct *p;
	} x_endndx;
      } x_fcn;

      struct {			/* if ISARY, up to 4 dimen. */
	unsigned short x_dimen[DIMNUM];
      } x_ary;
    } x_fcnary;

    unsigned short x_tvndx;	/* tv index */
  } x_sym;

  union {
    char x_fname[FILNMLEN];
    struct {
      long x_zeroes;
      long x_offset;
    } x_n;
  } x_file;

  struct {
    long x_scnlen;		/* section length */
    unsigned short x_nreloc;	/* # relocation entries */
    unsigned short x_nlinno;	/* # line numbers */
  } x_scn;

  struct {
    long		x_tvfill; /* tv fill value */
    unsigned short	x_tvlen; /* length of .tv */
    unsigned short	x_tvran[2]; /* tv range */
  } x_tv;		/* info about .tv section (in auxent of symbol .tv)) */

  /******************************************
   * RS/6000-specific auxent - last auxent for every external symbol
   ******************************************/
  struct {
    long            x_scnlen;       /* csect length */
    long            x_parmhash;     /* parm type hash index */
    unsigned short  x_snhash;       /* sect num with parm hash */
    unsigned char   x_smtyp;        /* symbol align and type */
				    /* 0-4 - Log 2 of alignment */
				    /* 5-7 - symbol type */
    unsigned char   x_smclas;       /* storage mapping class */
    long            x_stab;         /* dbx stab info index */
    unsigned short  x_snstab;       /* sect num with dbx stab */
  } x_csect; /* csect definition information */

/* x_smtyp values:  */

#define	SMTYP_ALIGN(x)	((x) >> 3)	/* log2 of alignment */
#define	SMTYP_SMTYP(x)	((x) & 0x7)	/* symbol type */
/* Symbol type values:  */
#define	XTY_ER	0	/* External reference */
#define	XTY_SD	1	/* Csect definition */
#define	XTY_LD	2	/* Label definition */
#define XTY_CM	3	/* .BSS */
#define	XTY_EM	4	/* Error message */
#define	XTY_US	5	/* "Reserved for internal use" */

/* x_smclas values:  */

#define	XMC_PR	0	/* Read-only program code */
#define	XMC_RO	1	/* Read-only constant */
#define	XMC_DB	2	/* Read-only debug dictionary table */
#define	XMC_TC	3	/* Read-write general TOC entry */
#define	XMC_UA	4	/* Read-write unclassified */
#define	XMC_RW	5	/* Read-write data */
#define	XMC_GL	6	/* Read-only global linkage */
#define	XMC_XO	7	/* Read-only extended operation (simulated insn) */
#define	XMC_SV	8	/* Read-only supervisor call */
#define	XMC_BS	9	/* Read-write BSS */
#define	XMC_DS	10	/* Read-write descriptor csect */
#define	XMC_UC	11	/* Read-write unnamed Fortran common */
#define	XMC_TI	12	/* Read-only traceback index csect */
#define	XMC_TB	13	/* Read-only traceback table csect */
/* 		14	??? */
#define	XMC_TC0	15	/* Read-write TOC anchor for TOC addressability */


  /******************************************
   *  I960-specific *2nd* aux. entry formats
   ******************************************/
  struct {
    /* This is a very old typo that keeps getting propagated. */
#define x_stdindx x_stindx
    long x_stindx;		/* sys. table entry */
  } x_sc;			/* system call entry */

  struct {
    unsigned long x_balntry;	/* BAL entry point */
  } x_bal;			/* BAL-callable function */

  struct {
    unsigned long	x_timestamp; /* time stamp */
    char 	x_idstring[20];	/* producer identity string */
  } x_ident;			/* Producer ident info */

};

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

struct internal_reloc 
{
	long r_vaddr;		/* Virtual address of reference */
	long r_symndx;		/* Index into symbol table	*/
	unsigned short r_type;	/* Relocation type		*/

#if RS6000COFF_C
	unsigned char  r_size;
#endif

	unsigned short r_offset;

};

#define R_RELBYTE	017
#define R_RELWORD	020
#define R_PCRBYTE	022
#define R_PCRWORD	023
#define R_PCRLONG	024

#define R_DIR32		06
#define	R_PCLONG	020
#define R_RELBYTE	017
#define R_RELWORD	020

#define R_PCRBYTE	022
#define R_PCRWORD	023
#define R_PCRLONG	024

#define R_PCR16L 128
#define R_PCR26L 129
#define R_VRT16  130
#define R_HVRT16 131
#define R_LVRT16 132
#define R_VRT32  133
#define R_RELLONG	(0x11)	/* Direct 32-bit relocation */
#define R_IPRSHORT	(0x18)
#define R_IPRMED 	(0x19)	/* 24-bit ip-relative relocation */
#define R_IPRLONG	(0x1a)
#define R_OPTCALL	(0x1b)	/* 32-bit optimizable call (leafproc/sysproc) */
#define R_OPTCALLX	(0x1c)	/* 64-bit optimizable call (leafproc/sysproc) */
#define R_GETSEG	(0x1d)
#define R_GETPA		(0x1e)
#define R_TAGWORD	(0x1f)
#define R_JUMPTARG	0x20	/* strange 29k 00xx00xx reloc */
Commit	Line	Data
f39eae7b JG	1	/* Internal format of COFF object file data structures, for GNU BFD.
	2	This file is part of BFD, the Binary File Descriptor library. */
	3
	4	/* First, make "signed char" work, even on old compilers. */
	5	#ifndef signed
	6	#ifndef __STDC__
	7	#define signed /**/
	8	#endif
	9	#endif
	10
42e15245 SC	11	/******************** FILE HEADER ********************/
	12	struct internal_filehdr
	13	{
	14	unsigned short f_magic; /* magic number */
	15	unsigned short f_nscns; /* number of sections */
	16	long f_timdat; /* time & date stamp */
	17	long f_symptr; /* file pointer to symtab */
	18	long f_nsyms; /* number of symtab entries */
	19	unsigned short f_opthdr; /* sizeof(optional hdr) */
	20	unsigned short f_flags; /* flags */
	21	};
	22
	23	/* Bits for f_flags:
	24	* F_RELFLG relocation info stripped from file
	25	* F_EXEC file is executable (no unresolved external references)
	26	* F_LNNO line numbers stripped from file
	27	* F_LSYMS local symbols stripped from file
6603bf38 JG	28	* F_AR16WR file is 16-bit little-endian
	29	* F_AR32WR file is 32-bit little-endian
	30	* F_AR32W file is 32-bit big-endian
	31	* F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports
	32	* F_SHROBJ rs/6000 aix: file is a shared object
42e15245 SC	33	*/
42e15245 SC	34
6603bf38 JG	35	#define F_RELFLG (0x0001)
	36	#define F_EXEC (0x0002)
	37	#define F_LNNO (0x0004)
	38	#define F_LSYMS (0x0008)
	39	#define F_AR16WR (0x0080)
	40	#define F_AR32WR (0x0100)
	41	#define F_AR32W (0x0200)
	42	#define F_DYNLOAD (0x1000)
	43	#define F_SHROBJ (0x2000)
	44
42e15245 SC	45	/******************** AOUT "OPTIONAL HEADER" ********************/
	46	struct internal_aouthdr {
	47	short magic; /* type of file */
	48	short vstamp; /* version stamp */
	49	unsigned long tsize; /* text size in bytes, padded to FW bdry*/
	50	unsigned long dsize; /* initialized data " " */
	51	unsigned long bsize; /* uninitialized data " " */
	52	unsigned long entry; /* entry pt. */
	53	unsigned long text_start; /* base of text used for this file */
	54	unsigned long data_start; /* base of data used for this file */
6603bf38 JG	55
6603bf38 JG	56	/* i960 stuff */
42e15245	57	unsigned long tagentries; /* number of tag entries to follow */
6603bf38 JG	58
6603bf38 JG	59	/* RS/6000 stuff */
f883d704 JG	60	unsigned long o_toc; /* address of TOC */
	61	short o_snentry; /* section number for entry point */
	62	short o_sntext; /* section number for text */
	63	short o_sndata; /* section number for data */
	64	short o_sntoc; /* section number for toc */
	65	short o_snloader; /* section number for loader section */
	66	short o_snbss; /* section number for bss */
	67	short o_algntext; /* max alignment for text */
	68	short o_algndata; /* max alignment for data */
	69	short o_modtype; /* Module type field, 1R,RE,RO */
	70	unsigned long o_maxstack; /* max stack size allowed. */
	71	};
42e15245 SC	72
	73	/******************** STORAGE CLASSES ********************/
	74
	75	#define C_EFCN -1 /* physical end of function */
	76	#define C_NULL 0
	77	#define C_AUTO 1 /* automatic variable */
	78	#define C_EXT 2 /* external symbol */
	79	#define C_STAT 3 /* static */
	80	#define C_REG 4 /* register variable */
	81	#define C_EXTDEF 5 /* external definition */
	82	#define C_LABEL 6 /* label */
	83	#define C_ULABEL 7 /* undefined label */
	84	#define C_MOS 8 /* member of structure */
	85	#define C_ARG 9 /* function argument */
	86	#define C_STRTAG 10 /* structure tag */
	87	#define C_MOU 11 /* member of union */
	88	#define C_UNTAG 12 /* union tag */
	89	#define C_TPDEF 13 /* type definition */
	90	#define C_USTATIC 14 /* undefined static */
	91	#define C_ENTAG 15 /* enumeration tag */
	92	#define C_MOE 16 /* member of enumeration */
	93	#define C_REGPARM 17 /* register parameter */
	94	#define C_FIELD 18 /* bit field */
	95	#define C_AUTOARG 19 /* auto argument */
	96	#define C_LASTENT 20 /* dummy entry (end of block) */
	97	#define C_BLOCK 100 /* ".bb" or ".eb" */
	98	#define C_FCN 101 /* ".bf" or ".ef" */
	99	#define C_EOS 102 /* end of structure */
	100	#define C_FILE 103 /* file name */
	101	#define C_LINE 104 /* line # reformatted as symbol table entry */
	102	#define C_ALIAS 105 /* duplicate tag */
	103	#define C_HIDDEN 106 /* ext symbol in dmert public lib */
	104
	105	/* New storage classes for 80960 */
	106
	107	/* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */
	108	#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */
	109
	110	#define C_SCALL 107 /* Procedure reachable via system call */
	111	#define C_LEAFEXT 108 /* External leaf */
	112	#define C_LEAFSTAT 113 /* Static leaf */
	113	#define C_OPTVAR 109 /* Optimized variable */
	114	#define C_DEFINE 110 /* Preprocessor #define */
	115	#define C_PRAGMA 111 /* Advice to compiler or linker */
	116	#define C_SEGMENT 112 /* 80960 segment name */
	117
6603bf38 JG	118	/* New storage classes for RS/6000 */
	119	#define C_HIDEXT 107 /* Un-named external symbol */
	120	#define C_BINCL 108 /* Marks beginning of include file */
	121	#define C_EINCL 109 /* Marks ending of include file */
	122
	123	/* storage classes for stab symbols for RS/6000 */
f39eae7b JG	124	#define C_GSYM ((signed char)0x80)
	125	#define C_LSYM ((signed char)0x81)
	126	#define C_PSYM ((signed char)0x82)
	127	#define C_RSYM ((signed char)0x83)
	128	#define C_RPSYM ((signed char)0x84)
	129	#define C_STSYM ((signed char)0x85)
	130	#define C_TCSYM ((signed char)0x86)
	131	#define C_BCOMM ((signed char)0x87)
	132	#define C_ECOML ((signed char)0x88)
	133	#define C_ECOMM ((signed char)0x89)
	134	#define C_DECL ((signed char)0x8c)
	135	#define C_ENTRY ((signed char)0x8d)
	136	#define C_FUN ((signed char)0x8e)
	137	#define C_BSTAT ((signed char)0x8f)
	138	#define C_ESTAT ((signed char)0x90)
6603bf38	139
42e15245 SC	140	/******************** SECTION HEADER ********************/
	141	struct internal_scnhdr {
	142	char s_name[8]; /* section name */
	143	long s_paddr; /* physical address, aliased s_nlib */
	144	long s_vaddr; /* virtual address */
	145	long s_size; /* section size */
	146	long s_scnptr; /* file ptr to raw data for section */
	147	long s_relptr; /* file ptr to relocation */
	148	long s_lnnoptr; /* file ptr to line numbers */
1daf2df4 SC	149	unsigned long s_nreloc; /* number of relocation entries */
1daf2df4 SC	150	unsigned long s_nlnno; /* number of line number entries*/
42e15245 SC	151	long s_flags; /* flags */
	152	#ifdef I960
	153	long s_align;
	154	#endif
	155	};
	156
	157
42e15245 SC	158	/*
	159	* s_flags "type"
	160	*/
	161	#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
	162	#define STYP_DSECT (0x0001) /* "dummy": relocated only*/
	163	#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
	164	#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
	165	#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
	166	#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
	167	loaded; reloc & lineno entries processed normally */
	168	#define STYP_TEXT (0x0020) /* section contains text only */
	169	#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
	170	will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
	171	update all process invocations. */
	172	#define STYP_DATA (0x0040) /* section contains data only */
	173	#define STYP_BSS (0x0080) /* section contains bss only */
	174	#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
	175	#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
	176	#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
	177	#define STYP_LIB (0x0800) /* for .lib: same as INFO */
	178	#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
	179	#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
	180	word of contiguous bytes beginning on a word boundary. */
	181	/******************** LINE NUMBERS ********************/
	182
	183	/* 1 line number entry for every "breakpointable" source line in a section.
	184	* Line numbers are grouped on a per function basis; first entry in a function
	185	* grouping will have l_lnno = 0 and in place of physical address will be the
	186	* symbol table index of the function name.
	187	*/
	188
	189	struct internal_lineno {
	190	union {
	191	long l_symndx; /* function name symbol index, iff l_lnno == 0*/
	192	long l_paddr; /* (physical) address of line number */
	193	} l_addr;
a737c70b	194	unsigned long l_lnno; /* line number */
42e15245 SC	195	};
42e15245 SC	196
50651e5e	197
42e15245	198	/******************** SYMBOLS ********************/
50651e5e	199
054862cf JG	200	#define SYMNMLEN 8 /* # characters in a symbol name */
	201	#define FILNMLEN 14 /* # characters in a file name */
	202	#define DIMNUM 4 /* # array dimensions in auxiliary entry */
	203
42e15245 SC	204	struct internal_syment {
	205	union {
	206	char _n_name[SYMNMLEN]; /* old COFF version */
	207	struct {
	208	long _n_zeroes; /* new == 0 */
	209	long _n_offset; /* offset into string table */
	210	} _n_n;
	211	char _n_nptr[2]; / allows for overlaying */
	212	} _n;
	213	long n_value; /* value of symbol */
	214	short n_scnum; /* section number */
	215	unsigned short n_flags; /* copy of flags from filhdr */
	216	unsigned short n_type; /* type and derived type */
f39eae7b	217	signed char n_sclass; /* storage class */
42e15245 SC	218	char n_numaux; /* number of aux. entries */
42e15245 SC	219	};
0c210c9c SC	220	#define n_name _n._n_name
	221	#define n_zeroes _n._n_n._n_zeroes
	222	#define n_offset _n._n_n._n_offset
	223
42e15245	224
50651e5e JG	225	/* Relocatable symbols have number of the section in which they are defined,
	226	or one of the following: */
	227
42e15245 SC	228	#define N_UNDEF ((short)0) /* undefined symbol */
	229	#define N_ABS ((short)-1) /* value of symbol is absolute */
	230	#define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */
	231	#define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */
	232	#define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/
	233
	234	/*
	235	* Type of a symbol, in low N bits of the word
	236	*/
	237	#define T_NULL 0
	238	#define T_VOID 1 /* function argument (only used by compiler) */
	239	#define T_CHAR 2 /* character */
	240	#define T_SHORT 3 /* short integer */
	241	#define T_INT 4 /* integer */
	242	#define T_LONG 5 /* long integer */
	243	#define T_FLOAT 6 /* floating point */
	244	#define T_DOUBLE 7 /* double word */
	245	#define T_STRUCT 8 /* structure */
	246	#define T_UNION 9 /* union */
	247	#define T_ENUM 10 /* enumeration */
	248	#define T_MOE 11 /* member of enumeration*/
	249	#define T_UCHAR 12 /* unsigned character */
	250	#define T_USHORT 13 /* unsigned short */
	251	#define T_UINT 14 /* unsigned integer */
	252	#define T_ULONG 15 /* unsigned long */
	253	#define T_LNGDBL 16 /* long double */
	254
	255	/*
	256	* derived types, in n_type
	257	*/
	258	#define DT_NON (0) /* no derived type */
	259	#define DT_PTR (1) /* pointer */
	260	#define DT_FCN (2) /* function */
	261	#define DT_ARY (3) /* array */
	262
	263	#define BTYPE(x) ((x) & N_BTMASK)
	264
	265	#define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
	266	#define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
	267	#define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
	268	#define ISTAG(x) ((x)==C_STRTAG\|\|(x)==C_UNTAG\|\|(x)==C_ENTAG)
	269	#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)\|((x)&N_BTMASK))
	270
	271
	272	union internal_auxent
	273	{
	274	struct {
0c210c9c	275
42e15245 SC	276	union {
	277	long l; /* str, un, or enum tag indx */
	278	struct coff_ptr_struct *p;
	279	} x_tagndx;
6603bf38	280
42e15245 SC	281	union {
	282	struct {
	283	unsigned short x_lnno; /* declaration line number */
	284	unsigned short x_size; /* str/union/array size */
	285	} x_lnsz;
	286	long x_fsize; /* size of function */
	287	} x_misc;
42e15245	288
6603bf38	289	union {
42e15245 SC	290	struct { /* if ISFCN, tag, or .bb */
	291	long x_lnnoptr; /* ptr to fcn line # */
	292	union { /* entry ndx past block end */
	293	long l;
	294	struct coff_ptr_struct *p;
42e15245	295	} x_endndx;
42e15245	296	} x_fcn;
6603bf38	297
42e15245 SC	298	struct { /* if ISARY, up to 4 dimen. */
	299	unsigned short x_dimen[DIMNUM];
	300	} x_ary;
	301	} x_fcnary;
6603bf38	302
42e15245 SC	303	unsigned short x_tvndx; /* tv index */
	304	} x_sym;
	305
	306	union {
	307	char x_fname[FILNMLEN];
	308	struct {
	309	long x_zeroes;
	310	long x_offset;
	311	} x_n;
	312	} x_file;
	313
	314	struct {
	315	long x_scnlen; /* section length */
	316	unsigned short x_nreloc; /* # relocation entries */
	317	unsigned short x_nlinno; /* # line numbers */
	318	} x_scn;
	319
	320	struct {
	321	long x_tvfill; /* tv fill value */
	322	unsigned short x_tvlen; /* length of .tv */
	323	unsigned short x_tvran[2]; /* tv range */
6603bf38 JG	324	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
	325
	326	/******************************************
	327	* RS/6000-specific auxent - last auxent for every external symbol
	328	******************************************/
	329	struct {
	330	long x_scnlen; /* csect length */
	331	long x_parmhash; /* parm type hash index */
	332	unsigned short x_snhash; /* sect num with parm hash */
	333	unsigned char x_smtyp; /* symbol align and type */
	334	/* 0-4 - Log 2 of alignment */
	335	/* 5-7 - symbol type */
	336	unsigned char x_smclas; /* storage mapping class */
	337	long x_stab; /* dbx stab info index */
	338	unsigned short x_snstab; /* sect num with dbx stab */
	339	} x_csect; /* csect definition information */
42e15245	340
650e42fb JG	341	/* x_smtyp values: */
	342
	343	#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */
	344	#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */
	345	/* Symbol type values: */
	346	#define XTY_ER 0 /* External reference */
	347	#define XTY_SD 1 /* Csect definition */
	348	#define XTY_LD 2 /* Label definition */
	349	#define XTY_CM 3 /* .BSS */
	350	#define XTY_EM 4 /* Error message */
	351	#define XTY_US 5 /* "Reserved for internal use" */
	352
	353	/* x_smclas values: */
	354
	355	#define XMC_PR 0 /* Read-only program code */
	356	#define XMC_RO 1 /* Read-only constant */
	357	#define XMC_DB 2 /* Read-only debug dictionary table */
	358	#define XMC_TC 3 /* Read-write general TOC entry */
	359	#define XMC_UA 4 /* Read-write unclassified */
	360	#define XMC_RW 5 /* Read-write data */
	361	#define XMC_GL 6 /* Read-only global linkage */
	362	#define XMC_XO 7 /* Read-only extended operation (simulated insn) */
	363	#define XMC_SV 8 /* Read-only supervisor call */
	364	#define XMC_BS 9 /* Read-write BSS */
	365	#define XMC_DS 10 /* Read-write descriptor csect */
	366	#define XMC_UC 11 /* Read-write unnamed Fortran common */
	367	#define XMC_TI 12 /* Read-only traceback index csect */
	368	#define XMC_TB 13 /* Read-only traceback table csect */
	369	/* 14 ??? */
	370	#define XMC_TC0 15 /* Read-write TOC anchor for TOC addressability */
	371
	372
42e15245 SC	373	/******************************************
	374	* I960-specific 2nd aux. entry formats
	375	******************************************/
	376	struct {
	377	/* This is a very old typo that keeps getting propagated. */
	378	#define x_stdindx x_stindx
	379	long x_stindx; /* sys. table entry */
	380	} x_sc; /* system call entry */
	381
	382	struct {
	383	unsigned long x_balntry; /* BAL entry point */
	384	} x_bal; /* BAL-callable function */
	385
	386	struct {
	387	unsigned long x_timestamp; /* time stamp */
	388	char x_idstring[20]; /* producer identity string */
	389	} x_ident; /* Producer ident info */
	390
42e15245 SC	391	};
	392
	393	/******************** RELOCATION DIRECTIVES ********************/
	394
1daf2df4 SC	395	struct internal_reloc
1daf2df4 SC	396	{
42e15245 SC	397	long r_vaddr; /* Virtual address of reference */
	398	long r_symndx; /* Index into symbol table */
	399	unsigned short r_type; /* Relocation type */
6603bf38	400
85d433c3	401	#if RS6000COFF_C
6603bf38 JG	402	unsigned char r_size;
	403	#endif
	404
42e15245	405	unsigned short r_offset;
1daf2df4	406
42e15245 SC	407	};
	408
	409	#define R_RELBYTE 017
	410	#define R_RELWORD 020
	411	#define R_PCRBYTE 022
	412	#define R_PCRWORD 023
	413	#define R_PCRLONG 024
	414
	415	#define R_DIR32 06
	416	#define R_PCLONG 020
	417	#define R_RELBYTE 017
	418	#define R_RELWORD 020
	419
	420	#define R_PCRBYTE 022
	421	#define R_PCRWORD 023
	422	#define R_PCRLONG 024
	423
	424	#define R_PCR16L 128
	425	#define R_PCR26L 129
	426	#define R_VRT16 130
	427	#define R_HVRT16 131
	428	#define R_LVRT16 132
	429	#define R_VRT32 133
	430	#define R_RELLONG (0x11) /* Direct 32-bit relocation */
	431	#define R_IPRSHORT (0x18)
	432	#define R_IPRMED (0x19) /* 24-bit ip-relative relocation */
	433	#define R_IPRLONG (0x1a)
	434	#define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */
	435	#define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */
	436	#define R_GETSEG (0x1d)
	437	#define R_GETPA (0x1e)
	438	#define R_TAGWORD (0x1f)
a0788ae3	439	#define R_JUMPTARG 0x20 /* strange 29k 00xx00xx reloc */