From: eck <none@none>
Date: Thu, 12 Apr 1990 17:03:31 +0000 (+0000)
Subject: added a.out.h for the cv program
X-Git-Tag: release-5-5~1742
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=010ada1c23fb9e93cd32fabce343aaebb4f09794;p=ack.git

added a.out.h for the cv program
---

diff --git a/lib/minixST/include/a.out.h b/lib/minixST/include/a.out.h
new file mode 100644
index 000000000..d1c643c0d
--- /dev/null
+++ b/lib/minixST/include/a.out.h
@@ -0,0 +1,110 @@
+/* The <a.out> header file describes the format of executable files. */
+
+#ifndef _AOUT_H
+#define _AOUT_H
+
+struct	exec {			/* a.out header */
+	unsigned char	a_magic[2];	/* magic number */
+	unsigned char	a_flags;	/* flags, see below */
+	unsigned char	a_cpu;		/* cpu id */
+	unsigned char	a_hdrlen;	/* length of header */
+	unsigned char	a_unused;	/* reserved for future use */
+	unsigned short	a_version;	/* version stamp */	
+				/* not used */
+	long		a_text;		/* size of text segement in bytes */
+	long		a_data;		/* size of data segment in bytes */
+	long		a_bss;		/* size of bss segment in bytes */
+	long		a_no_entry;	/* in fact: entry point, a_entry */
+	long		a_total;	/* total memory allocated */
+	long		a_syms;		/* size of symbol table */
+				/* SHORT FORM ENDS HERE */
+	long		a_trsize;	/* text relocation size */
+	long		a_drsize;	/* data relocation size */
+	long		a_tbase;	/* text relocation base */
+	long		a_dbase;	/* data relocation base */
+};
+
+#define A_MAGIC0	(unsigned char) 0x01
+#define A_MAGIC1	(unsigned char) 0x03
+#define BADMAG(X)	((X).a_magic[0] != A_MAGIC0 ||\
+			 (X).a_magic[1] != A_MAGIC1)
+
+/* CPU Id of TARGET machine */
+	/* byte order coded in low order two bits */
+#define A_NONE	0x00	/* unknown */
+#define A_I8086	0x04	/* intel i8086/8088 */
+#define A_M68K	0x0B	/* motorola m68000 */
+#define A_NS16K	0x0C	/* national semiconductor 16032 */
+#define A_I80386	0x10	/* intel i80386 */
+
+#define A_BLR(cputype)	((cputype&0x01)!=0) /* TRUE if bytes left-to-right */
+#define A_WLR(cputype)	((cputype&0x02)!=0) /* TRUE if words left-to-right */
+
+/* flags: */
+#define A_EXEC	0x10	/* executable */
+#define A_SEP	0x20	/* separate I/D */
+#define A_PURE	0x40	/* pure text */		/* not used */
+#define A_TOVLY	0x80	/* text overlay */	/* not used */
+
+/* offsets of various things: */
+#define A_MINHDR	32
+#define	A_TEXTPOS(X)	((long)(X).a_hdrlen)
+#define A_DATAPOS(X)	(A_TEXTPOS(X) + (X).a_text)
+#define	A_HASRELS(X)	((X).a_hdrlen > (unsigned char) A_MINHDR)
+#define A_HASEXT(X)	((X).a_hdrlen > (unsigned char) (A_MINHDR +  8))
+#define A_HASLNS(X)	((X).a_hdrlen > (unsigned char) (A_MINHDR + 16))
+#define A_HASTOFF(X)	((X).a_hdrlen > (unsigned char) (A_MINHDR + 24))
+#define A_TRELPOS(X)	(A_DATAPOS(X) + (X).a_data)
+#define A_DRELPOS(X)	(A_TRELPOS(X) + (X).a_trsize)
+#define A_SYMPOS(X)	(A_TRELPOS(X) + (A_HASRELS(X) ? \
+				((X).a_trsize + (X).a_drsize) : 0))
+
+struct reloc {
+	long		r_vaddr;	/* virtual address of reference */
+	unsigned short	r_symndx;	/* internal segnum or extern symbol num */
+	unsigned short	r_type;		/* relocation type */
+};
+
+/* r_tyep values: */
+#define R_ABBS		0
+#define R_RELLBYTE	2
+#define R_PCRBYTE	3
+#define R_RELWORD	4
+#define R_PCRWORD	5
+#define R_RELLONG	6
+#define R_PCRLONG	7
+#define R_REL3BYTE	8
+#define R_KBRANCHE	9
+
+/* r_symndx for internal segments */
+#define S_ABS		((unsigned short)-1)
+#define S_TEXT		((unsigned short)-2)
+#define S_DATA		((unsigned short)-3)
+#define S_BSS		((unsigned short)-4)
+
+struct nlist {			/* symbol table entry */
+	char	 	n_name[8];	/* symbol name */
+	long	 	n_value;	/* value */
+	unsigned char	n_sclass;	/* storage class */
+	unsigned char	n_numaux;	/* number of auxiliary entries */
+						/* not used */
+	unsigned short	n_type;		/* language base and derived type */
+						/* not used */
+};
+
+/* low bits of storage class (section) */
+#define	N_SECT		  07	/* section mask */
+#define N_UNDF		  00	/* undefined */
+#define N_ABS		  01	/* absolute */
+#define N_TEXT		  02	/* text */
+#define N_DATA		  03	/* data */
+#define	N_BSS		  04	/* bss */
+#define N_COMM		  05	/* (common) */
+
+/* high bits of storage class */
+#define N_CLASS		0370	/* storage class mask */
+#define C_NULL
+#define C_EXT		0020	/* external symbol */
+#define C_STAT		0030	/* static */
+
+#endif /* _AOUT_H */