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CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v101/asmlink/lo68.h

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+/*
+	Copyright 1981
+	Alcyon Corporation
+	8474 Commerce Av.
+	San Diego, Ca.  92121
+*/
+
+#include	"machine.h"
+/* format of a symbol entry in the main table*/
+
+#define SEEKREL	1	/*relative seek flag*/
+
+#define SYNAMLEN	8
+
+struct symtab {
+	char name[SYNAMLEN];		/*symbol name*/
+	short  flags;			/*bit flags*/
+	long vl1;			/*symbol value*/
+	char *tlnk;			/*table link*/
+};
+
+struct symtab *symptr;
+#define	OSTSIZE	14		/*entry length on object file without tlnk*/
+
+/* flags for symbols*/
+# define SYDF	0100000		/*defined*/
+# define SYEQ	0040000		/*equated*/
+# define SYGL	0020000		/*global - entry or external*/
+# define SYER	0010000		/*equated register*/
+# define SYXR	0004000		/*external reference*/
+# define SYDA	0002000		/*DATA based relocatable*/
+# define SYTX	0001000		/*TEXT based relocatable*/
+# define SYBS	0000400		/*BSS based relocatable*/
+
+struct irts {
+	char *irle;		/*ptr to last entry in chain*/
+	char *irfe;		/*ptr to first entry in chain*/
+};
+#ifdef	VAX
+struct {
+	short loword;
+	short hiword;
+};
+#endif
+#ifdef	PDP11
+struct {
+	short loword;
+	short hiword;
+};
+#endif
+#ifdef	MC68000
+struct	{
+	short	hiword;
+	short	loword;
+};
+#endif
+/* parameters that define the main table*/
+#define SZMT 300			/*initial size of the main table*/
+					/*must be large enough to initialize*/
+#define ICRSZMT 100			/*add to main table when run out*/
+int cszmt;				/*current size of main table*/
+char *bmte;				/*beginning of main table*/
+char *emte;				/*end of main table*/
+
+/*initial reference table for externals*/
+# define SZIRT	64
+char *eirt[SZIRT];
+char *saveirt[SZIRT];
+
+/*initial reference table for globals*/
+char *girt[SZIRT];
+char *savgirt[SZIRT];
+
+char **pirt;
+
+char *lmte;		/*last entry in main table*/
+char *savlmte;
+
+#define AREGLO		8
+#define AREGHI		15
+
+/* relocation bit definitions:*/
+#define RBMASK		07		/*tells type of relocation*/
+#define INSABS		7		/*first word of instr -- absolute*/
+#define DABS		0		/*data word absolute*/
+#define TRELOC		2		/* TEXT relocatable*/
+#define DRELOC		1		/* DATA relocatable*/
+#define BRELOC		3		/* BSS relocatable*/
+#define EXTVAR		4		/* ref to external variable*/
+#define LUPPER		5		/* upper word of long*/
+#define EXTREL		6		/* relative mode on external variable*/
+
+#define BUFSIZE	512
+
+struct buf{
+	int fildes;
+	int nunused;
+	char *xfree;
+	char buff[512];
+};
+
+struct buf ibuf;
+struct buf tbuf;
+struct buf obuf;
+struct buf rbuf;
+struct buf rtbuf;
+struct buf rdbuf;
+
+int sflag;		/*remove symbol table*/
+
+long textbase;
+long database;
+long bssbase;
+long textsize;
+long datasize;
+long bsssize;
+long stacksize;
+
+long textstart;
+long datastart;
+long bssstart;
+
+char *ifilname;		/*points to name of current input file*/
+
+#define NFILE	256		/*max # files we can process*/
+char *fsymp[NFILE];		/*points to first symbol for each .o file*/
+char **firstsym;		/*points to entry in fsymp*/
+
+int extmatch;			/*matched an external in a library entry*/
+int noload;			/*dont load this lib file flag*/
+
+#define NLIB	16	/*max # libraries to process*/
+int lbfictr[NLIB];	/*counts files loaded from one library*/
+int *libfctr;		/*points to lbfictr*/
+long lbfioff[NFILE];	/*each file offset in library*/
+long *libptr;		/*points to lbfioff*/
+
+#define LIB1MAGIC	0177555
+#define LIB2MAGIC	0xffffff65
+#define LIB1HDSIZE	16
+#define LIB2HDSIZE	26
+struct libhdr {
+	char l1fname[8];
+	long l1modti;
+	char l1userid;
+	char l1fimode;
+	short l1fsize;
+};
+
+struct lib2hdr {
+	char l2fname[14];
+	long l2modti;
+	char l2userid;
+	char l2gid;
+	short  l2fimode;
+	long l2fsize;
+	short l2junk;
+} *lib2hd;
+
+#define	ARMAG	"!<arch>\n"
+#define	SARMAG	8
+
+#define	ARFMAG	"`\n"
+
+struct ar_hdr {
+	char	ar_name[16];
+	char	ar_date[12];
+	char	ar_uid[6];
+	char	ar_gid[6];
+	char	ar_mode[8];
+	char	ar_size[10];
+	char	ar_fmag[2];
+} lib3_hdr;
+
+#define LIB3MAGIC 0x3c21
+#define LIB3HDSIZE	(sizeof lib3_hdr)
+
+int libhdsize;
+long  libhd[20];		/*length is max lib head size*/
+
+int undflg;
+char dafnc;
+int pass2;
+long stlen;
+int Xflag;
+int Dflag;
+int Bflag;
+int Zflag;
+
+
+struct symtab *etextptr;
+struct symtab *edataptr;
+struct symtab *endptr;
+char *lastdup;
+
+char rtfnc;
+char rdfnc;
+int saverbits;