Initial revision

1 files changed, 427 insertions, 0 deletions

diff --git a/include/coff-mips.h b/include/coff-mips.h
new file mode 100755
index 0000000..b50fe48
--- /dev/null
+++ b/include/coff-mips.h
@@ -0,0 +1,427 @@
+/* ECOFF include file for MIPS machines.  It has been split off from the
+   include files for other COFF machines.  It is derived from...  */
+
+/*** coff information for 80960.  Origins: Intel corp, natch. */
+
+/* This include file is also used for rudimentary ECOFF support on MIPS
+   machines.  Such differences as are needed are #ifdef MIPS.  */
+/* For separate ecoff.h:  we force MIPS on, to get the changes. */
+#undef MIPS
+#define MIPS	1
+
+/* NOTE: Tagentries (cf TAGBITS) are not used by the 960 */
+
+/********************** FILE HEADER **********************/
+
+struct 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_AR32WR	file has byte ordering of an AR32WR machine (e.g. vax)
+ */
+
+#define F_RELFLG	(0x0001)
+#define F_EXEC		(0x0002)
+#define F_LNNO		(0x0004)
+#define F_LSYMS		(0x0008)
+#define F_AR32WR	(0x0010)
+
+/*
+ *	Intel 80960 (I960) processor flags.
+ *	F_I960TYPE == mask for processor type field. 
+ */
+
+#define	F_I960TYPE	(0xf000)
+#define	F_I960CORE	(0x1000)
+#define	F_I960KB	(0x2000)
+#define	F_I960SB	(0x2000)
+#define	F_I960MC	(0x3000)
+#define	F_I960XA	(0x4000)
+#define	F_I960CA	(0x5000)
+#define	F_I960KA	(0x6000)
+#define	F_I960SA	(0x6000)
+  
+  /*
+   * i80960 Magic Numbers
+   */
+
+#define I960ROMAGIC	(0x160)	/* read-only text segments */
+#define I960RWMAGIC	(0x161)	/* read-write text segments */
+
+#define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC))
+
+#define	FILHDR	struct filehdr
+#define	FILHSZ	sizeof(FILHDR)
+
+
+/********************** AOUT "OPTIONAL HEADER" **********************/
+
+typedef struct {
+	unsigned long	phys_addr;
+	unsigned long	bitarray;
+} TAGBITS;
+
+
+/*  These appear to be used only by exec(2).  I don't know who cares
+    about them in a cross development environment.  In any case, this
+    is my collection after researching the issue for a few hours.
+    Apparently, most have these have remained essentially unchanged
+    since v7 days, although a few new ones have been added.  xoxorich.
+    Could we have a little more teleology please? -- Gumby */
+
+#define BAD0MAGIC   (0401)	/* (?) "lpd (UNIX/RT)" */
+#define BAD1MAGIC   (0405)	/* (?) overlay */
+#define OMAGIC      (0407)	/* old impure format. data immediately
+                                   follows text. both sections are rw. */
+#define NMAGIC      (0410)	/* split i&d, read-only text */
+#define A_MAGIC3    (0411)	/* (?) "separated I&D" */
+#define ZMAGIC      (0413)	/* like NMAGIC, but demand loaded */
+#define PAGEMAGIC2  (0414)	/* (?) like ZMAGIC, but address zero
+                                   explicitly unmapped. */ /*  */
+#define REGMAGIC    (0414)	/* (?) a PAGEMAGIC2 alias? */
+#define PAGEMAGIC3  (0415)	/* (?) like ZMAGIC, but address zero mapped. */
+#define A_MAGIC5    (0437)	/* (?) "system overlay, separated I&D" */
+#define SASMAGIC    (010000)	/* (?) "Single Address Space" */    
+#define MASMAGIC    (020000)	/* (?) "Multiple (separate I/D) Addr. Spaces" */
+
+typedef	struct 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 "   "		*/
+#if U3B
+	unsigned long	dum1;
+	unsigned long	dum2;	/* pad to entry point	*/
+#endif
+	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 */
+	unsigned long	tagentries;	/* number of tag entries to follow */
+} AOUTHDR;
+
+/* return a pointer to the tag bits array */
+
+#define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
+
+/* compute size of a header */
+
+/*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
+#define AOUTSZ (sizeof(AOUTHDR))
+
+
+/********************** 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_REGARG     19 */	/* My guess - but Intel specific*/
+#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		*/
+
+/********************** SECTION HEADER **********************/
+
+struct 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 short	s_nreloc;	/* number of relocation entries	*/
+	unsigned short	s_nlnno;	/* number of line number entries*/
+	long		s_flags;	/* flags			*/
+#ifndef MIPS
+ /* This field exists in Intel COFF, not in Mips ECOFF. */
+	unsigned long	s_align;	/* section alignment		*/
+#endif
+};
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT	".text"
+#define _DATA	".data"
+#define _BSS	".bss"
+
+/*
+ * 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	SCNHDR	struct scnhdr
+#define	SCNHSZ	sizeof(SCNHDR)
+
+
+/********************** 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 lineno {
+	union {
+		long l_symndx;	/* function name symbol index, iff l_lnno == 0*/
+		long l_paddr;	/* (physical) address of line number	*/
+	} l_addr;
+	unsigned short	l_lnno;	/* line number		*/
+	char padding[2];	/* force alignment	*/
+};
+
+#define	LINENO	struct lineno
+#define	LINESZ	sizeof(LINENO) 
+
+
+/********************** 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 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 long	n_type;		/* type and derived type	*/
+	char		n_sclass;	/* storage class		*/
+	char		n_numaux;	/* number of aux. entries	*/
+	char		pad2[2];	/* force alignment		*/
+};
+
+#define n_name		_n._n_name
+#define n_ptr		_n._n_nptr[1]
+#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 4 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 N_BTMASK	(0x1f)
+#define N_TMASK		(0x60)
+#define N_BTSHFT	(5)
+#define N_TSHIFT	(2)
+  
+#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 DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
+
+union auxent {
+	struct {
+		long x_tagndx;	/* str, un, or enum tag indx */
+		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 # */
+			    long x_endndx;	/* entry ndx past block end */
+			} 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)) */
+
+	/******************************************
+	 *  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 */
+
+	char a[sizeof(struct syment)];	/* force auxent/syment sizes to match */
+};
+
+#define	SYMENT	struct syment
+#define	SYMESZ	sizeof(SYMENT)	
+#define	AUXENT	union auxent
+#define	AUXESZ	sizeof(AUXENT)
+
+#if VAX || I960
+#	define _ETEXT	"_etext"
+#else
+#	define _ETEXT	"etext"
+#endif
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+struct reloc {
+	long r_vaddr;		/* Virtual address of reference */
+	long r_symndx;		/* Index into symbol table	*/
+	unsigned short r_type;	/* Relocation type		*/
+	char pad[2];		/* Unused			*/
+};
+
+/* Relevent values for r_type and i960.  Would someone please document them */
+
+#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 RELOC struct reloc
+#define RELSZ sizeof(RELOC)
+
+#define DEFAULT_DATA_SECTION_ALIGNMENT 4
+#define DEFAULT_BSS_SECTION_ALIGNMENT 4
+#define DEFAULT_TEXT_SECTION_ALIGNMENT 16
+/* For new sections we havn't heard of before */
+#define DEFAULT_SECTION_ALIGNMENT 4