20060303

1 files changed, 294 insertions, 0 deletions

diff --git a/utils/libmach/mach.h b/utils/libmach/mach.h
new file mode 100644
index 00000000..6a5d2569
--- /dev/null
+++ b/utils/libmach/mach.h
@@ -0,0 +1,294 @@
+/*
+ *	Architecture-dependent application data
+ */
+#include "a.out.h"
+/*
+ *	Supported architectures:
+ *		mips,
+ *		68020,
+ *		i386,
+ *		amd64,
+ *		sparc,
+ *		mips2 (R4000)
+ *		arm
+ */
+enum
+{
+	MMIPS,			/* machine types */
+	MSPARC,
+	M68020,
+	MI386,
+	MI960,			/* retired */
+	M3210,			/* retired */
+	MMIPS2,
+	NMIPS2,
+	M29000,			/* retired */
+	MARM,
+	MPOWER,
+
+				/* types of executables */
+	FNONE = 0,		/* unidentified */
+	FMIPS,			/* v.out */
+	FMIPSB,			/* mips bootable */
+	FSPARC,			/* k.out */
+	FSPARCB,		/* Sparc bootable */
+	F68020,			/* 2.out */
+	F68020B,		/* 68020 bootable */
+	FNEXTB,			/* Next bootable */
+	FI386,			/* 8.out */
+	FI386B,			/* I386 bootable */
+	FI960,			/* retired */
+	FI960B,			/* retired */
+	F3210,			/* retired */
+	FMIPS2BE,			/* 4.out */
+	F29000,			/* retired */
+	FARM,			/* 5.out */
+	FARMB,			/* ARM bootable */
+	FPOWER,			/* q.out */
+	FPOWERB,		/* power pc bootable */
+	FMIPS2LE,		/* 4k little endian */
+
+	ANONE = 0,		/* dissembler types */
+	AMIPS,
+	AMIPSCO,		/* native mips */
+	ASPARC,
+	ASUNSPARC,		/* native sun */
+	A68020,
+	AI386,
+	AI8086,			/* oh god */
+	AI960,			/* retired */
+	A29000,
+	AARM,
+	APOWER,
+				/* object file types */
+	Obj68020 = 0,		/* .2 */
+	ObjSparc,		/* .k */
+	ObjMips,		/* .v */
+	Obj386,			/* .8 */
+	Obj960,			/* retired */
+	Obj3210,		/* .x */
+	ObjMips2,		/* .4 */
+	Obj29000,		/* retired */
+	ObjArm,			/* .5 */
+	ObjPower,		/* .q */
+	ObjMips2le,		/* .0 */
+	Maxobjtype,
+
+	CNONE  = 0,		/* symbol table classes */
+	CAUTO,
+	CPARAM,
+	CSTAB,
+	CTEXT,
+	CDATA,
+	CANY			/* to look for any class */
+};
+
+typedef	struct	Map	Map;
+typedef struct	Symbol	Symbol;
+typedef	struct	Reglist	Reglist;
+typedef	struct	Mach	Mach;
+typedef	struct	Machdata Machdata;
+typedef struct	segment	segment;
+
+typedef	int	(*Rsegio)(segment*, ulong, long, char*, int);
+
+/*
+ * 	Structure to map a segment to a position in a file
+ */
+struct Map {
+	int	nsegs;			/* number of segments */
+	struct segment {		/* per-segment map */
+		char	*name;		/* the segment name */
+		int	fd;		/* file descriptor */
+		int	inuse;		/* in use - not in use */
+		ulong	b;		/* base */
+		ulong	e;		/* end */
+		ulong	f;		/* offset within file */
+		Rsegio	mget;	/* special get if not 0 */
+		Rsegio	mput;	/* special put if not 0 */
+	} seg[1];			/* actually n of these */
+};
+
+
+
+/*
+ *	Internal structure describing a symbol table entry
+ */
+struct Symbol {
+	void 	*handle;		/* used internally - owning func */
+	/*struct {*/
+		char	*name;
+		long	value;		/* address or stack offset */
+		char	type;		/* as in a.out.h */
+		char	class;		/* as above */
+	/*};*/
+};
+
+/*
+ *	machine register description
+ */
+struct Reglist {
+	char	*rname;			/* register name */
+	short	roffs;			/* offset in u-block */
+	char	rflags;			/* INTEGER/FLOAT, WRITABLE */
+	char	rformat;		/* print format: 'x', 'X', 'f', '8', '3', 'Y', 'W' */
+};
+
+enum {				/* bits in rflags field */
+	RINT	= (0<<0),
+	RFLT	= (1<<0),
+	RRDONLY	= (1<<1)
+};
+/*
+ *	Machine-dependent data is stored in two structures:
+ *		Mach  - miscellaneous general parameters
+ *		Machdata - jump vector of service functions used by debuggers
+ *
+ *	Mach is defined in 2.c, 4.c, v.c, k.c, 8.c, 6.c and set in executable.c
+ *
+ *	Machdata is defined in 2db.c, 4db.c, vdb.c, kdb.c, 8db.c, and 6db.c
+ *		and set in the debugger startup.
+ */
+
+
+struct Mach{
+	char	*name;
+	int	mtype;			/* machine type code */
+	Reglist *reglist;		/* register set */
+	ulong	regsize;		/* sizeof registers in bytes*/
+	ulong	fpregsize;		/* sizeof fp registers in bytes*/
+	char	*pc;			/* pc name */
+	char	*sp;			/* sp name */
+	char	*link;			/* link register name */
+	char	*sbreg;			/* static base register name */
+	ulong	sb;			/* static base register value */
+	int	pgsize;			/* page size */
+	ulong	kbase;			/* kernel base address */
+	ulong	ktmask;			/* ktzero = kbase & ~ktmask */
+	int	pcquant;		/* quantization of pc */
+	int	szaddr;			/* sizeof(void*) */
+	int	szreg;			/* sizeof(register) */
+	int	szfloat;		/* sizeof(float) */
+	int	szdouble;		/* sizeof(double) */
+};
+
+extern	Mach	*mach;			/* Current machine */
+
+typedef vlong	(*Rgetter)(Map*, char*);
+typedef	void	(*Tracer)(Map*, ulong, ulong, Symbol*);
+
+struct	Machdata {		/* Machine-dependent debugger support */
+	uchar	bpinst[4];			/* break point instr. */
+	short	bpsize;				/* size of break point instr. */
+
+	ushort	(*swab)(ushort);		/* short to local byte order */
+	long	(*swal)(long);			/* long to local byte order */
+	vlong	(*swav)(vlong);			/* vlong to local byte order */
+	int	(*ctrace)(Map*, ulong, ulong, ulong, Tracer); /* C traceback */
+	ulong	(*findframe)(Map*, ulong, ulong, ulong, ulong);/* frame finder */
+	char*	(*excep)(Map*, Rgetter);	/* last exception */
+	ulong	(*bpfix)(ulong);		/* breakpoint fixup */
+	int	(*sftos)(char*, int, void*);	/* single precision float */
+	int	(*dftos)(char*, int, void*);	/* double precision float */
+	int	(*foll)(Map*, ulong, Rgetter, ulong*);	/* follow set */
+	int	(*das)(Map*, ulong, char, char*, int);	/* symbolic disassembly */
+	int	(*hexinst)(Map*, ulong, char*, int); 	/* hex disassembly */
+	int	(*instsize)(Map*, ulong);	/* instruction size */
+};
+
+/*
+ *	Common a.out header describing all architectures
+ */
+typedef struct Fhdr
+{
+	char	*name;		/* identifier of executable */
+	short	type;		/* file type - see codes above*/
+	short	hdrsz;		/* size of this header */
+	long	magic;		/* magic number */
+	long	txtaddr;	/* text address */
+	long	entry;		/* entry point */
+	long	txtsz;		/* text size */
+	long	txtoff;		/* start of text in file */
+	long	dataddr;	/* start of data segment */
+	long	datsz;		/* size of data seg */
+	long	datoff;		/* offset to data seg in file */
+	long	bsssz;		/* size of bss */
+	long	symsz;		/* size of symbol table */
+	long	symoff;		/* offset of symbol table in file */
+	long	sppcsz;		/* size of sp-pc table */
+	long	sppcoff;	/* offset of sp-pc table in file */
+	long	lnpcsz;		/* size of line number-pc table */
+	long	lnpcoff;	/* size of line number-pc table */
+} Fhdr;
+
+extern	int	asstype;		/* dissembler type - machdata.c */
+extern	Machdata *machdata;		/* jump vector - machdata.c */
+
+Map*		attachproc(int, int, int, Fhdr*);
+Map*		attachremt(int, Fhdr*);
+int		beieee80ftos(char*, int, void*);
+int		beieeesftos(char*, int, void*);
+int		beieeedftos(char*, int, void*);
+ushort		beswab(ushort);
+long		beswal(long);
+vlong		beswav(vlong);
+int		cisctrace(Map*, ulong, ulong, ulong, Tracer);
+ulong		ciscframe(Map*, ulong, ulong, ulong, ulong);
+int		crackhdr(int fd, Fhdr*);
+long		file2pc(char*, ulong);
+int		fileelem(Sym**, uchar *, char*, int);
+int		fileline(char*, int, ulong);
+int		filesym(int, char*, int);
+int		findlocal(Symbol*, char*, Symbol*);
+int		findseg(Map*, char*);
+int		findsym(long, int, Symbol *);
+int		fnbound(long, ulong*);
+int		fpformat(Map*, Reglist*, char*, int, int);
+int		get1(Map*, ulong, uchar*, int);
+int		get2(Map*, ulong, ushort*);
+int		get4(Map*, ulong, long*);
+int		get8(Map*, ulong, vlong*);
+int		getauto(Symbol*, int, int, Symbol*);
+Sym*		getsym(int);
+int		globalsym(Symbol *, int);
+char*		_hexify(char*, ulong, int);
+int		ieeesftos(char*, int, ulong);
+int		ieeedftos(char*, int, ulong, ulong);
+int		isar(Biobuf*);
+int		leieee80ftos(char*, int, void*);
+int		leieeesftos(char*, int, void*);
+int		leieeedftos(char*, int, void*);
+ushort		leswab(ushort);
+long		leswal(long);
+vlong		leswav(vlong);
+long		line2addr(ulong, ulong, ulong);
+Map*		loadmap(Map*, int, Fhdr*);
+int		localaddr(Map*, char*, char*, long*, Rgetter);
+int		localsym(Symbol*, int);
+int		lookup(char*, char*, Symbol*);
+void		machbytype(int);
+int		machbyname(char*);
+int		nextar(Biobuf*, int, char*);
+Map*		newmap(Map*, int);
+void		objtraverse(void(*)(Sym*, void*), void*);
+int		objtype(Biobuf*, char**);
+long		pc2sp(ulong);
+long		pc2line(ulong);
+int		put1(Map*, ulong, uchar*, int);
+int		put2(Map*, ulong, ushort);
+int		put4(Map*, ulong, long);
+int		put8(Map*, ulong, vlong);
+int		readar(Biobuf*, int, int, int);
+int		readobj(Biobuf*, int);
+struct segment*	reloc(Map*, ulong, long*);
+ulong		riscframe(Map*, ulong, ulong, ulong, ulong);
+int		risctrace(Map*, ulong, ulong, ulong, Tracer);
+int		setmap(Map*, int, ulong, ulong, ulong, char*);
+void		setmapio(Map*, int, Rsegio, Rsegio);
+Sym*		symbase(long*);
+int		syminit(int, Fhdr*);
+int		symoff(char*, int, long, int);
+void		textseg(ulong, Fhdr*);
+int		textsym(Symbol*, int);
+void		unusemap(Map*, int);
+