[deliverable/binutils-gdb.git] / include / coff / internal.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.	*/

  /* MIPS ECOFF stuff */
  unsigned long bss_start;	/* Base of bss section.		*/
  unsigned long gp_value;	/* GP register value.		*/
  unsigned long gprmask;	/* General registers used.	*/
  unsigned long cprmask[4];	/* Coprocessor registers used.	*/
};

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

/* This used to be defined as -1, but now n_sclass is unsigned.  */
#define C_EFCN		0xff	/* 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          (0x80)
#define C_LSYM          (0x81)
#define C_PSYM          (0x82)
#define C_RSYM          (0x83)
#define C_RPSYM         (0x84)
#define C_STSYM         (0x85)
#define C_TCSYM         (0x86)
#define C_BCOMM         (0x87)
#define C_ECOML         (0x88)
#define C_ECOMM         (0x89)
#define C_DECL          (0x8c)
#define C_ENTRY         (0x8d)
#define C_FUN           (0x8e)
#define C_BSTAT         (0x8f)
#define C_ESTAT         (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			*/
  long s_align;			/* used on I960			*/
};

/*
 * 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. */

#define STYP_LIT	0x8020	/* Literal data (like STYP_TEXT) */
/********************** 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	*/
  unsigned 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		*/
  unsigned char r_size;		/* Used on RS/6000		*/
  unsigned long 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_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 */
#define R_MOVB1    0x41		/* Special h8 16bit or 8 bit reloc for  mov.b */
#define R_MOVB2    0x42		/* Special h8 opcode for 8bit which could
							      be 16 */
#define R_JMP1     0x43		/* Special h8 16bit jmp which could be pcrel */
#define R_JMP2 0x44		/* a branch which used to be a jmp */
#define R_RELLONG_NEG  0x45

/* Z8k modes */
#define R_IMM16   0x01		/* 16 bit abs */
#define R_JR	  0x02		/* jr  8 bit disp */
#define R_IMM4L   0x23		/* low nibble */
#define R_IMM8    0x22		/* 8 bit abs */
#define R_IMM32   R_RELLONG	/* 32 bit abs */
#define R_CALL    R_DA		/* Absolute address which could be a callr */
#define R_JP	  R_DA		/* Absolute address which could be a jp */
#define R_REL16   0x04		/* 16 bit PC rel */
#define R_CALLR	  0x05		/* callr 12 bit disp */
#define R_SEG     0x10		/* set if in segmented mode */
#define R_IMM4H   0x24		/* high nibble */


/* H8500 modes */

#define R_H8500_IMM8  	1		/*  8 bit immediate 	*/
#define R_H8500_IMM16 	2		/* 16 bit immediate	*/
#define R_H8500_PCREL8 	3		/*  8 bit pcrel 	*/
#define R_H8500_PCREL16 4		/* 16 bit pcrel 	*/
#define R_H8500_HIGH8  	5		/* high 8 bits of 24 bit address */
#define R_H8500_LOW16 	7		/* low 16 bits of 24 bit immediate */
#define R_H8500_IMM24	6		/* 24 bit immediate */
#define R_H8500_IMM32   8               /* 32 bit immediate */
Commit	Line	Data
f6868b8e SC	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__
57115f09	7	#define signed /**/
f6868b8e SC	8	#endif
	9	#endif
	10
	11	/******************** FILE HEADER ********************/
57115f09	12	struct internal_filehdr
f6868b8e	13	{
57115f09 ILT	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 */
f6868b8e SC	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
	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
	33	*/
	34
	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
	45	/******************** AOUT "OPTIONAL HEADER" ********************/
57115f09 ILT	46	struct internal_aouthdr
	47	{
	48	short magic; /* type of file */
	49	short vstamp; /* version stamp */
	50	unsigned long tsize; /* text size in bytes, padded to FW bdry*/
	51	unsigned long dsize; /* initialized data " " */
	52	unsigned long bsize; /* uninitialized data " " */
	53	unsigned long entry; /* entry pt. */
	54	unsigned long text_start; /* base of text used for this file */
	55	unsigned long data_start; /* base of data used for this file */
	56
	57	/* i960 stuff */
	58	unsigned long tagentries; /* number of tag entries to follow */
	59
	60	/* RS/6000 stuff */
	61	unsigned long o_toc; /* address of TOC */
	62	short o_snentry; /* section number for entry point */
	63	short o_sntext; /* section number for text */
	64	short o_sndata; /* section number for data */
	65	short o_sntoc; /* section number for toc */
	66	short o_snloader; /* section number for loader section */
	67	short o_snbss; /* section number for bss */
	68	short o_algntext; /* max alignment for text */
	69	short o_algndata; /* max alignment for data */
	70	short o_modtype; /* Module type field, 1R,RE,RO */
	71	unsigned long o_maxstack; /* max stack size allowed. */
62aaa2e7 ILT	72
	73	/* MIPS ECOFF stuff */
	74	unsigned long bss_start; /* Base of bss section. */
	75	unsigned long gp_value; /* GP register value. */
	76	unsigned long gprmask; /* General registers used. */
	77	unsigned long cprmask[4]; /* Coprocessor registers used. */
f6868b8e SC	78	};
	79
	80	/******************** STORAGE CLASSES ********************/
	81
2cf90c44 JK	82	/* This used to be defined as -1, but now n_sclass is unsigned. */
2cf90c44 JK	83	#define C_EFCN 0xff /* physical end of function */
f6868b8e SC	84	#define C_NULL 0
	85	#define C_AUTO 1 /* automatic variable */
	86	#define C_EXT 2 /* external symbol */
	87	#define C_STAT 3 /* static */
	88	#define C_REG 4 /* register variable */
	89	#define C_EXTDEF 5 /* external definition */
	90	#define C_LABEL 6 /* label */
	91	#define C_ULABEL 7 /* undefined label */
	92	#define C_MOS 8 /* member of structure */
	93	#define C_ARG 9 /* function argument */
	94	#define C_STRTAG 10 /* structure tag */
	95	#define C_MOU 11 /* member of union */
	96	#define C_UNTAG 12 /* union tag */
	97	#define C_TPDEF 13 /* type definition */
	98	#define C_USTATIC 14 /* undefined static */
	99	#define C_ENTAG 15 /* enumeration tag */
	100	#define C_MOE 16 /* member of enumeration */
	101	#define C_REGPARM 17 /* register parameter */
	102	#define C_FIELD 18 /* bit field */
	103	#define C_AUTOARG 19 /* auto argument */
	104	#define C_LASTENT 20 /* dummy entry (end of block) */
	105	#define C_BLOCK 100 /* ".bb" or ".eb" */
	106	#define C_FCN 101 /* ".bf" or ".ef" */
	107	#define C_EOS 102 /* end of structure */
	108	#define C_FILE 103 /* file name */
	109	#define C_LINE 104 /* line # reformatted as symbol table entry */
	110	#define C_ALIAS 105 /* duplicate tag */
	111	#define C_HIDDEN 106 /* ext symbol in dmert public lib */
	112
57115f09 ILT	113	/* New storage classes for 80960 */
57115f09 ILT	114
f6868b8e SC	115	/* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */
	116	#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */
	117
	118	#define C_SCALL 107 /* Procedure reachable via system call */
	119	#define C_LEAFEXT 108 /* External leaf */
57115f09	120	#define C_LEAFSTAT 113 /* Static leaf */
f6868b8e SC	121	#define C_OPTVAR 109 /* Optimized variable */
	122	#define C_DEFINE 110 /* Preprocessor #define */
	123	#define C_PRAGMA 111 /* Advice to compiler or linker */
	124	#define C_SEGMENT 112 /* 80960 segment name */
	125
57115f09 ILT	126	/* New storage classes for RS/6000 */
	127	#define C_HIDEXT 107 /* Un-named external symbol */
	128	#define C_BINCL 108 /* Marks beginning of include file */
	129	#define C_EINCL 109 /* Marks ending of include file */
f6868b8e	130
57115f09	131	/* storage classes for stab symbols for RS/6000 */
2cf90c44 JK	132	#define C_GSYM (0x80)
	133	#define C_LSYM (0x81)
	134	#define C_PSYM (0x82)
	135	#define C_RSYM (0x83)
	136	#define C_RPSYM (0x84)
	137	#define C_STSYM (0x85)
	138	#define C_TCSYM (0x86)
	139	#define C_BCOMM (0x87)
	140	#define C_ECOML (0x88)
	141	#define C_ECOMM (0x89)
	142	#define C_DECL (0x8c)
	143	#define C_ENTRY (0x8d)
	144	#define C_FUN (0x8e)
	145	#define C_BSTAT (0x8f)
	146	#define C_ESTAT (0x90)
f6868b8e SC	147
f6868b8e SC	148	/******************** SECTION HEADER ********************/
57115f09 ILT	149	struct internal_scnhdr
	150	{
	151	char s_name[8]; /* section name */
	152	long s_paddr; /* physical address, aliased s_nlib */
	153	long s_vaddr; /* virtual address */
	154	long s_size; /* section size */
	155	long s_scnptr; /* file ptr to raw data for section */
	156	long s_relptr; /* file ptr to relocation */
	157	long s_lnnoptr; /* file ptr to line numbers */
	158	unsigned long s_nreloc; /* number of relocation entries */
	159	unsigned long s_nlnno; /* number of line number entries*/
	160	long s_flags; /* flags */
	161	long s_align; /* used on I960 */
f6868b8e SC	162	};
f6868b8e SC	163
f6868b8e SC	164	/*
	165	* s_flags "type"
	166	*/
57115f09 ILT	167	#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
	168	#define STYP_DSECT (0x0001) /* "dummy": relocated only*/
	169	#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
	170	#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
	171	#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
	172	#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
	173	loaded; reloc & lineno entries processed normally */
	174	#define STYP_TEXT (0x0020) /* section contains text only */
	175	#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
	176	will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
	177	update all process invocations. */
	178	#define STYP_DATA (0x0040) /* section contains data only */
	179	#define STYP_BSS (0x0080) /* section contains bss only */
	180	#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
	181	#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
	182	#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
	183	#define STYP_LIB (0x0800) /* for .lib: same as INFO */
	184	#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
	185	#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
	186
	187	word of contiguous bytes
	188	beginning on a word boundary. */
	189
	190	#define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */
f6868b8e SC	191	/******************** LINE NUMBERS ********************/
	192
	193	/* 1 line number entry for every "breakpointable" source line in a section.
	194	* Line numbers are grouped on a per function basis; first entry in a function
	195	* grouping will have l_lnno = 0 and in place of physical address will be the
	196	* symbol table index of the function name.
	197	*/
	198
57115f09 ILT	199	struct internal_lineno
	200	{
	201	union
	202	{
	203	long l_symndx; /* function name symbol index, iff l_lnno == 0*/
	204	long l_paddr; /* (physical) address of line number */
	205	} l_addr;
	206	unsigned long l_lnno; /* line number */
f6868b8e SC	207	};
f6868b8e SC	208
f6868b8e SC	209	/******************** SYMBOLS ********************/
	210
	211	#define SYMNMLEN 8 /* # characters in a symbol name */
	212	#define FILNMLEN 14 /* # characters in a file name */
	213	#define DIMNUM 4 /* # array dimensions in auxiliary entry */
	214
57115f09 ILT	215	struct internal_syment
	216	{
	217	union
	218	{
	219	char _n_name[SYMNMLEN]; /* old COFF version */
	220	struct
	221	{
	222	long _n_zeroes; /* new == 0 */
	223	long _n_offset; /* offset into string table */
	224	} _n_n;
	225	char _n_nptr[2]; / allows for overlaying */
	226	} _n;
	227	long n_value; /* value of symbol */
	228	short n_scnum; /* section number */
	229	unsigned short n_flags; /* copy of flags from filhdr */
	230	unsigned short n_type; /* type and derived type */
2cf90c44	231	unsigned char n_sclass; /* storage class */
57115f09	232	char n_numaux; /* number of aux. entries */
f6868b8e	233	};
57115f09	234
f6868b8e SC	235	#define n_name _n._n_name
	236	#define n_zeroes _n._n_n._n_zeroes
	237	#define n_offset _n._n_n._n_offset
	238
	239
	240	/* Relocatable symbols have number of the section in which they are defined,
	241	or one of the following: */
	242
57115f09 ILT	243	#define N_UNDEF ((short)0) /* undefined symbol */
	244	#define N_ABS ((short)-1) /* value of symbol is absolute */
	245	#define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */
	246	#define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */
	247	#define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/
f6868b8e SC	248
	249	/*
	250	* Type of a symbol, in low N bits of the word
	251	*/
	252	#define T_NULL 0
	253	#define T_VOID 1 /* function argument (only used by compiler) */
	254	#define T_CHAR 2 /* character */
	255	#define T_SHORT 3 /* short integer */
	256	#define T_INT 4 /* integer */
	257	#define T_LONG 5 /* long integer */
	258	#define T_FLOAT 6 /* floating point */
	259	#define T_DOUBLE 7 /* double word */
	260	#define T_STRUCT 8 /* structure */
	261	#define T_UNION 9 /* union */
	262	#define T_ENUM 10 /* enumeration */
	263	#define T_MOE 11 /* member of enumeration*/
	264	#define T_UCHAR 12 /* unsigned character */
	265	#define T_USHORT 13 /* unsigned short */
	266	#define T_UINT 14 /* unsigned integer */
	267	#define T_ULONG 15 /* unsigned long */
	268	#define T_LNGDBL 16 /* long double */
	269
	270	/*
	271	* derived types, in n_type
	272	*/
	273	#define DT_NON (0) /* no derived type */
	274	#define DT_PTR (1) /* pointer */
	275	#define DT_FCN (2) /* function */
	276	#define DT_ARY (3) /* array */
	277
	278	#define BTYPE(x) ((x) & N_BTMASK)
	279
	280	#define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
	281	#define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
	282	#define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
	283	#define ISTAG(x) ((x)==C_STRTAG\|\|(x)==C_UNTAG\|\|(x)==C_ENTAG)
	284	#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)\|((x)&N_BTMASK))
	285
	286
57115f09	287	union internal_auxent
f6868b8e	288	{
57115f09 ILT	289	struct
57115f09 ILT	290	{
f6868b8e	291
57115f09 ILT	292	union
57115f09 ILT	293	{
f6868b8e SC	294	long l; /* str, un, or enum tag indx */
f6868b8e SC	295	struct coff_ptr_struct *p;
57115f09	296	} x_tagndx;
f6868b8e	297
57115f09 ILT	298	union
	299	{
	300	struct
	301	{
f6868b8e SC	302	unsigned short x_lnno; /* declaration line number */
f6868b8e SC	303	unsigned short x_size; /* str/union/array size */
57115f09	304	} x_lnsz;
f6868b8e	305	long x_fsize; /* size of function */
57115f09	306	} x_misc;
f6868b8e	307
57115f09 ILT	308	union
	309	{
	310	struct
	311	{ /* if ISFCN, tag, or .bb */
f6868b8e	312	long x_lnnoptr; /* ptr to fcn line # */
57115f09 ILT	313	union
	314	{ /* entry ndx past block end */
	315	long l;
f6868b8e	316	struct coff_ptr_struct *p;
57115f09 ILT	317	} x_endndx;
57115f09 ILT	318	} x_fcn;
f6868b8e	319
57115f09 ILT	320	struct
57115f09 ILT	321	{ /* if ISARY, up to 4 dimen. */
f6868b8e	322	unsigned short x_dimen[DIMNUM];
57115f09 ILT	323	} x_ary;
57115f09 ILT	324	} x_fcnary;
f6868b8e SC	325
f6868b8e SC	326	unsigned short x_tvndx; /* tv index */
57115f09	327	} x_sym;
f6868b8e	328
57115f09 ILT	329	union
57115f09 ILT	330	{
f6868b8e	331	char x_fname[FILNMLEN];
57115f09 ILT	332	struct
57115f09 ILT	333	{
f6868b8e SC	334	long x_zeroes;
f6868b8e SC	335	long x_offset;
57115f09 ILT	336	} x_n;
57115f09 ILT	337	} x_file;
f6868b8e	338
57115f09 ILT	339	struct
57115f09 ILT	340	{
f6868b8e SC	341	long x_scnlen; /* section length */
	342	unsigned short x_nreloc; /* # relocation entries */
	343	unsigned short x_nlinno; /* # line numbers */
57115f09	344	} x_scn;
f6868b8e	345
57115f09 ILT	346	struct
	347	{
	348	long x_tvfill; /* tv fill value */
	349	unsigned short x_tvlen; /* length of .tv */
	350	unsigned short x_tvran[2]; /* tv range */
	351	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
f6868b8e SC	352
	353	/******************************************
	354	* RS/6000-specific auxent - last auxent for every external symbol
	355	******************************************/
57115f09 ILT	356	struct
	357	{
	358	long x_scnlen; /* csect length */
	359	long x_parmhash; /* parm type hash index */
	360	unsigned short x_snhash; /* sect num with parm hash */
	361	unsigned char x_smtyp; /* symbol align and type */
	362	/* 0-4 - Log 2 of alignment */
	363	/* 5-7 - symbol type */
	364	unsigned char x_smclas; /* storage mapping class */
	365	long x_stab; /* dbx stab info index */
	366	unsigned short x_snstab; /* sect num with dbx stab */
	367	} x_csect; /* csect definition information */
f6868b8e SC	368
	369	/* x_smtyp values: */
	370
	371	#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */
	372	#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */
	373	/* Symbol type values: */
57115f09 ILT	374	#define XTY_ER 0 /* External reference */
	375	#define XTY_SD 1 /* Csect definition */
	376	#define XTY_LD 2 /* Label definition */
	377	#define XTY_CM 3 /* .BSS */
	378	#define XTY_EM 4 /* Error message */
	379	#define XTY_US 5 /* "Reserved for internal use" */
f6868b8e SC	380
	381	/* x_smclas values: */
	382
57115f09 ILT	383	#define XMC_PR 0 /* Read-only program code */
	384	#define XMC_RO 1 /* Read-only constant */
	385	#define XMC_DB 2 /* Read-only debug dictionary table */
	386	#define XMC_TC 3 /* Read-write general TOC entry */
	387	#define XMC_UA 4 /* Read-write unclassified */
	388	#define XMC_RW 5 /* Read-write data */
	389	#define XMC_GL 6 /* Read-only global linkage */
	390	#define XMC_XO 7 /* Read-only extended operation (simulated insn) */
	391	#define XMC_SV 8 /* Read-only supervisor call */
	392	#define XMC_BS 9 /* Read-write BSS */
	393	#define XMC_DS 10 /* Read-write descriptor csect */
	394	#define XMC_UC 11 /* Read-write unnamed Fortran common */
	395	#define XMC_TI 12 /* Read-only traceback index csect */
	396	#define XMC_TB 13 /* Read-only traceback table csect */
f6868b8e	397	/* 14 ??? */
57115f09	398	#define XMC_TC0 15 /* Read-write TOC anchor for TOC addressability */
f6868b8e SC	399
	400
	401	/******************************************
	402	* I960-specific 2nd aux. entry formats
	403	******************************************/
57115f09 ILT	404	struct
57115f09 ILT	405	{
f6868b8e SC	406	/* This is a very old typo that keeps getting propagated. */
	407	#define x_stdindx x_stindx
	408	long x_stindx; /* sys. table entry */
57115f09	409	} x_sc; /* system call entry */
f6868b8e	410
57115f09 ILT	411	struct
57115f09 ILT	412	{
f6868b8e	413	unsigned long x_balntry; /* BAL entry point */
57115f09	414	} x_bal; /* BAL-callable function */
f6868b8e	415
57115f09 ILT	416	struct
	417	{
	418	unsigned long x_timestamp; /* time stamp */
	419	char x_idstring[20]; /* producer identity string */
	420	} x_ident; /* Producer ident info */
f6868b8e SC	421
	422	};
	423
	424	/******************** RELOCATION DIRECTIVES ********************/
	425
57115f09	426	struct internal_reloc
f6868b8e	427	{
57115f09 ILT	428	long r_vaddr; /* Virtual address of reference */
	429	long r_symndx; /* Index into symbol table */
	430	unsigned short r_type; /* Relocation type */
	431	unsigned char r_size; /* Used on RS/6000 */
	432	unsigned long r_offset;
f6868b8e SC	433
	434	};
	435
	436	#define R_RELBYTE 017
	437	#define R_RELWORD 020
	438	#define R_PCRBYTE 022
	439	#define R_PCRWORD 023
	440	#define R_PCRLONG 024
	441
	442	#define R_DIR32 06
	443	#define R_PCLONG 020
	444	#define R_RELBYTE 017
	445	#define R_RELWORD 020
	446
f6868b8e SC	447
	448
	449	#define R_PCR16L 128
	450	#define R_PCR26L 129
	451	#define R_VRT16 130
	452	#define R_HVRT16 131
	453	#define R_LVRT16 132
	454	#define R_VRT32 133
	455	#define R_RELLONG (0x11) /* Direct 32-bit relocation */
	456	#define R_IPRSHORT (0x18)
	457	#define R_IPRMED (0x19) /* 24-bit ip-relative relocation */
	458	#define R_IPRLONG (0x1a)
	459	#define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */
	460	#define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */
	461	#define R_GETSEG (0x1d)
	462	#define R_GETPA (0x1e)
	463	#define R_TAGWORD (0x1f)
	464	#define R_JUMPTARG 0x20 /* strange 29k 00xx00xx reloc */
57115f09 ILT	465	#define R_MOVB1 0x41 /* Special h8 16bit or 8 bit reloc for mov.b */
	466	#define R_MOVB2 0x42 /* Special h8 opcode for 8bit which could
	467	be 16 */
2cf90c44	468	#define R_JMP1 0x43 /* Special h8 16bit jmp which could be pcrel */
57115f09	469	#define R_JMP2 0x44 /* a branch which used to be a jmp */
eaa0f4f8 SC	470	#define R_RELLONG_NEG 0x45
eaa0f4f8 SC	471
eaa0f4f8	472	/* Z8k modes */
62aaa2e7	473	#define R_IMM16 0x01 /* 16 bit abs */
57115f09 ILT	474	#define R_JR 0x02 /* jr 8 bit disp */
	475	#define R_IMM4L 0x23 /* low nibble */
	476	#define R_IMM8 0x22 /* 8 bit abs */
62aaa2e7	477	#define R_IMM32 R_RELLONG /* 32 bit abs */
57115f09 ILT	478	#define R_CALL R_DA /* Absolute address which could be a callr */
	479	#define R_JP R_DA /* Absolute address which could be a jp */
	480	#define R_REL16 0x04 /* 16 bit PC rel */
	481	#define R_CALLR 0x05 /* callr 12 bit disp */
	482	#define R_SEG 0x10 /* set if in segmented mode */
	483	#define R_IMM4H 0x24 /* high nibble */
2cf90c44 JK	484
	485
	486	/* H8500 modes */
	487
	488	#define R_H8500_IMM8 1 /* 8 bit immediate */
	489	#define R_H8500_IMM16 2 /* 16 bit immediate */
	490	#define R_H8500_PCREL8 3 /* 8 bit pcrel */
	491	#define R_H8500_PCREL16 4 /* 16 bit pcrel */
	492	#define R_H8500_HIGH8 5 /* high 8 bits of 24 bit address */
	493	#define R_H8500_LOW16 7 /* low 16 bits of 24 bit immediate */
	494	#define R_H8500_IMM24 6 /* 24 bit immediate */
	495	#define R_H8500_IMM32 8 /* 32 bit immediate */