symconst.h

早期freebsd实现

/* Declarations of constants for internal format of MIPS ECOFF symbols.
   Originally contributed by MIPS Computer Systems and Third Eye Software.
   Changes contributed by Cygnus Support are in the public domain.  */

/*
 * |-----------------------------------------------------------|
 * | Copyright (c) 1992, 1991, 1990 MIPS Computer Systems, Inc.|
 * | MIPS Computer Systems, Inc. grants reproduction and use   |
 * | rights to all parties, PROVIDED that this comment is      |
 * | maintained in the copy.                                   |
 * |-----------------------------------------------------------|
 */
/* $Header: /local/cvsfiles/devo/include/coff/symconst.h,v 1.6 1992/08/27 22:12:38 brendan Exp $ */

/* (C) Copyright 1984 by Third Eye Software, Inc.
 *
 * Third Eye Software, Inc. grants reproduction and use rights to
 * all parties, PROVIDED that this comment is maintained in the copy.
 *
 * Third Eye makes no claims about the applicability of this
 * symbol table to a particular use.
 */

/* glevels for field in FDR */
#define GLEVEL_0	2
#define GLEVEL_1	1
#define GLEVEL_2	0	/* for upward compat reasons. */
#define GLEVEL_3	3

/* magic number fo symheader */
#define magicSym	0x7009

/* Language codes */
#define langC		0	
#define langPascal	1
#define langFortran	2
#define	langAssembler	3	/* one Assembley inst might map to many mach */
#define langMachine	4
#define langNil		5
#define langAda		6
#define langPl1		7
#define langCobol	8
#define langStdc	9	/* FIXME: Collides with SGI langCplusplus */
#define langCplusplus	9	/* FIXME: Collides with langStdc */
#define langCplusplusV2	10	/* SGI addition */
#define langMax		11	/* maximun allowed 32 -- 5 bits */

/* The following are value definitions for the fields in the SYMR */

/*
 * Storage Classes
 */

#define scNil		0
#define scText		1	/* text symbol */
#define scData		2	/* initialized data symbol */
#define scBss		3	/* un-initialized data symbol */
#define scRegister	4	/* value of symbol is register number */
#define scAbs		5	/* value of symbol is absolute */
#define scUndefined	6	/* who knows? */
#define scCdbLocal	7	/* variable's value is IN se->va.?? */
#define scBits		8	/* this is a bit field */
#define scCdbSystem	9	/* variable's value is IN CDB's address space */
#define scDbx		9	/* overlap dbx internal use */
#define scRegImage	10	/* register value saved on stack */
#define scInfo		11	/* symbol contains debugger information */
#define scUserStruct	12	/* address in struct user for current process */
#define scSData		13	/* load time only small data */
#define scSBss		14	/* load time only small common */
#define scRData		15	/* load time only read only data */
#define scVar		16	/* Var parameter (fortran,pascal) */
#define scCommon	17	/* common variable */
#define scSCommon	18	/* small common */
#define scVarRegister	19	/* Var parameter in a register */
#define scVariant	20	/* Variant record */
#define scSUndefined	21	/* small undefined(external) data */
#define scInit		22	/* .init section symbol */
#define scBasedVar	23	/* Fortran or PL/1 ptr based var */ 
#define scXData         24      /* exception handling data */
#define scPData         25      /* Procedure section */
#define scFini          26      /* .fini section */
#define scMax		32


/*
 *   Symbol Types
 */

#define stNil		0	/* Nuthin' special */
#define stGlobal	1	/* external symbol */
#define stStatic	2	/* static */
#define stParam		3	/* procedure argument */
#define stLocal		4	/* local variable */
#define stLabel		5	/* label */
#define stProc		6	/*     "      "	 Procedure */
#define stBlock		7	/* beginnning of block */
#define stEnd		8	/* end (of anything) */
#define stMember	9	/* member (of anything	- struct/union/enum */
#define stTypedef	10	/* type definition */
#define stFile		11	/* file name */
#define stRegReloc	12	/* register relocation */
#define stForward	13	/* forwarding address */
#define stStaticProc	14	/* load time only static procs */
#define stConstant	15	/* const */
#define stStaParam	16	/* Fortran static parameters */
    /* These new symbol types have been recently added to SGI machines. */
#define stStruct	26	/* Beginning of block defining a struct type */
#define stUnion		27	/* Beginning of block defining a union type */
#define stEnum		28	/* Beginning of block defining an enum type */
    /* Psuedo-symbols - internal to debugger */
#define stStr		60	/* string */
#define stNumber	61	/* pure number (ie. 4 NOR 2+2) */
#define stExpr		62	/* 2+2 vs. 4 */
#define stType		63	/* post-coersion SER */
#define stMax		64

/* definitions for fields in TIR */

/* type qualifiers for ti.tq0 -> ti.(itqMax-1) */
#define tqNil	0	/* bt is what you see */
#define tqPtr	1	/* pointer */
#define tqProc	2	/* procedure */
#define tqArray 3	/* duh */
#define tqFar	4	/* longer addressing - 8086/8 land */
#define tqVol	5	/* volatile */
#define tqConst 6	/* const */
#define tqMax	8

/* basic types as seen in ti.bt */
#define btNil		0	/* undefined (also, enum members) */
#define btAdr		1	/* address - integer same size as pointer */
#define btChar		2	/* character */
#define btUChar		3	/* unsigned character */
#define btShort		4	/* short */
#define btUShort	5	/* unsigned short */
#define btInt		6	/* int */
#define btUInt		7	/* unsigned int */
#define btLong		8	/* long */
#define btULong		9	/* unsigned long */
#define btFloat		10	/* float (real) */
#define btDouble	11	/* Double (real) */
#define btStruct	12	/* Structure (Record) */
#define btUnion		13	/* Union (variant) */
#define btEnum		14	/* Enumerated */
#define btTypedef	15	/* defined via a typedef, isymRef points */
#define btRange		16	/* subrange of int */
#define btSet		17	/* pascal sets */
#define btComplex	18	/* fortran complex */
#define btDComplex	19	/* fortran double complex */
#define btIndirect	20	/* forward or unnamed typedef */
#define btFixedDec	21	/* Fixed Decimal */
#define btFloatDec	22	/* Float Decimal */
#define btString	23	/* Varying Length Character String */
#define btBit		24	/* Aligned Bit String */
#define btPicture	25	/* Picture */
#define btVoid		26	/* void */
#define btLongLong	27	/* long long */
#define btULongLong	28	/* unsigned long long */
#define btMax		64

#if (_MFG == _MIPS)
/* optimization type codes */
#define otNil		0
#define otReg		1	/* move var to reg */
#define otBlock		2	/* begin basic block */
#define	otProc		3	/* procedure */
#define otInline	4	/* inline procedure */
#define otEnd		5	/* whatever you started */
#define otMax		6	/* KEEP UP TO DATE */
#endif /* (_MFG == _MIPS) */