cmd/prof, libmach: delete

We have never released cmd/prof and don't plan to.
Now that nm, addr2line, and objdump have been rewritten in Go,
cmd/prof is the only thing keeping us from deleting libmach.

Delete cmd/prof, and then since nothing is using libmach, delete libmach.

13,000 lines of C deleted.

LGTM=minux.ma
R=golang-codereviews, minux.ma
CC=golang-codereviews, iant, r
https://codereview.appspot.com/87020044

9 files changed, 0 insertions, 763 deletions

diff --git a/include/bootexec.h b/include/bootexec.h
deleted file mode 100644
index 49721ea33..000000000
--- a/include/bootexec.h
+++ /dev/null
@@ -1,169 +0,0 @@
-// Inferno libmach/bootexec.h
-// http://code.google.com/p/inferno-os/source/browse/utils/libmach/bootexec.h
-//
-//	Copyright © 1994-1999 Lucent Technologies Inc.
-//	Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
-//	Portions Copyright © 1997-1999 Vita Nuova Limited.
-//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
-//	Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others.
-//	Portions Copyright © 2009 The Go Authors. All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-struct coffsect
-{
-	char	name[8];
-	uint32	phys;
-	uint32	virt;
-	uint32	size;
-	uint32	fptr;
-	uint32	fptrreloc;
-	uint32	fptrlineno;
-	uint32	nrelocnlineno;
-	uint32	flags;
-};
-
-/*
- * proprietary exec headers, needed to bootstrap various machines
- */
-struct mipsexec
-{
-	short	mmagic;		/* (0x160) mips magic number */
-	short	nscns;		/* (unused) number of sections */
-	int32	timdat;		/* (unused) time & date stamp */
-	int32	symptr;		/* offset to symbol table */
-	int32	nsyms;		/* size of symbol table */
-	short	opthdr;		/* (0x38) sizeof(optional hdr) */
-	short	pcszs;		/* flags */
-	short	amagic;		/* see above */
-	short	vstamp;		/* version stamp */
-	int32	tsize;		/* text size in bytes */
-	int32	dsize;		/* initialized data */
-	int32	bsize;		/* uninitialized data */
-	int32	mentry;		/* entry pt.				*/
-	int32	text_start;	/* base of text used for this file	*/
-	int32	data_start;	/* base of data used for this file	*/
-	int32	bss_start;	/* base of bss used for this file	*/
-	int32	gprmask;	/* general purpose register mask	*/
-union{
-	int32	cprmask[4];	/* co-processor register masks		*/
-	int32	pcsize;
-};
-	int32	gp_value;	/* the gp value used for this object    */
-};
-
-struct mips4kexec
-{
-	struct mipsexec	h;
-	struct coffsect	itexts;
-	struct coffsect idatas;
-	struct coffsect ibsss;
-};
-
-struct sparcexec
-{
-	short	sjunk;		/* dynamic bit and version number */
-	short	smagic;		/* 0407 */
-	uint32	stext;
-	uint32	sdata;
-	uint32	sbss;
-	uint32	ssyms;
-	uint32	sentry;
-	uint32	strsize;
-	uint32	sdrsize;
-};
-
-struct nextexec
-{
-/* UNUSED
-	struct	nexthdr{
-		uint32	nmagic;
-		uint32	ncputype;
-		uint32	ncpusubtype;
-		uint32	nfiletype;
-		uint32	ncmds;
-		uint32	nsizeofcmds;
-		uint32	nflags;
-	};
-
-	struct nextcmd{
-		uint32	cmd;
-		uint32	cmdsize;
-		uchar	segname[16];
-		uint32	vmaddr;
-		uint32	vmsize;
-		uint32	fileoff;
-		uint32	filesize;
-		uint32	maxprot;
-		uint32	initprot;
-		uint32	nsects;
-		uint32	flags;
-	}textc;
-	struct nextsect{
-		char	sectname[16];
-		char	segname[16];
-		uint32	addr;
-		uint32	size;
-		uint32	offset;
-		uint32	align;
-		uint32	reloff;
-		uint32	nreloc;
-		uint32	flags;
-		uint32	reserved1;
-		uint32	reserved2;
-	}texts;
-	struct nextcmd	datac;
-	struct nextsect	datas;
-	struct nextsect	bsss;
-	struct nextsym{
-		uint32	cmd;
-		uint32	cmdsize;
-		uint32	symoff;
-		uint32	nsyms;
-		uint32	spoff;
-		uint32	pcoff;
-	}symc;
-*/
-};
-
-struct i386exec
-{
-/* UNUSED
-	struct	i386coff{
-		uint32	isectmagic;
-		uint32	itime;
-		uint32	isyms;
-		uint32	insyms;
-		uint32	iflags;
-	};
-	struct	i386hdr{
-		uint32	imagic;
-		uint32	itextsize;
-		uint32	idatasize;
-		uint32	ibsssize;
-		uint32	ientry;
-		uint32	itextstart;
-		uint32	idatastart;
-	};
-	struct coffsect	itexts;
-	struct coffsect idatas;
-	struct coffsect ibsss;
-	struct coffsect icomments;
-*/
-};
diff --git a/include/mach.h b/include/mach.h
deleted file mode 100644
index cf7151cfd..000000000
--- a/include/mach.h
+++ /dev/null
@@ -1,411 +0,0 @@
-// Inferno libmach/a.out.h and libmach/mach.h
-// http://code.google.com/p/inferno-os/source/browse/utils/libmach/a.out.h
-// http://code.google.com/p/inferno-os/source/browse/utils/libmach/mach.h
-//
-// 	Copyright © 1994-1999 Lucent Technologies Inc.
-// 	Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
-// 	Portions Copyright © 1997-1999 Vita Nuova Limited.
-// 	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
-// 	Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others.
-//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-/*
- *	Architecture-dependent application data
- */
-
-typedef	struct	Exec	Exec;
-struct	Exec
-{
-	int32	magic;		/* magic number */
-	int32	text;	 	/* size of text segment */
-	int32	data;	 	/* size of initialized data */
-	int32	bss;	  	/* size of uninitialized data */
-	int32	syms;	 	/* size of symbol table */
-	int32	entry;	 	/* entry point */
-	int32	spsz;		/* size of pc/sp offset table */
-	int32	pcsz;		/* size of pc/line number table */
-};
-
-#define HDR_MAGIC	0x00008000		/* header expansion */
-
-#define	_MAGIC(f, b)	((f)|((((4*(b))+0)*(b))+7))
-#define	A_MAGIC		_MAGIC(0, 8)		/* 68020 */
-#define	I_MAGIC		_MAGIC(0, 11)		/* intel 386 */
-#define	J_MAGIC		_MAGIC(0, 12)		/* intel 960 (retired) */
-#define	K_MAGIC		_MAGIC(0, 13)		/* sparc */
-#define	V_MAGIC		_MAGIC(0, 16)		/* mips 3000 BE */
-#define	X_MAGIC		_MAGIC(0, 17)		/* att dsp 3210 (retired) */
-#define	M_MAGIC		_MAGIC(0, 18)		/* mips 4000 BE */
-#define	D_MAGIC		_MAGIC(0, 19)		/* amd 29000 (retired) */
-#define	E_MAGIC		_MAGIC(0, 20)		/* arm */
-#define	Q_MAGIC		_MAGIC(0, 21)		/* powerpc */
-#define	N_MAGIC		_MAGIC(0, 22)		/* mips 4000 LE */
-#define	L_MAGIC		_MAGIC(0, 23)		/* dec alpha */
-#define	P_MAGIC		_MAGIC(0, 24)		/* mips 3000 LE */
-#define	U_MAGIC		_MAGIC(0, 25)		/* sparc64 */
-#define	S_MAGIC		_MAGIC(HDR_MAGIC, 26)	/* amd64 */
-#define	T_MAGIC		_MAGIC(HDR_MAGIC, 27)	/* powerpc64 */
-
-#define	MIN_MAGIC	8
-#define	MAX_MAGIC	27			/* <= 90 */
-
-#define	DYN_MAGIC	0x80000000		/* dlm */
-
-typedef	struct	Sym	Sym;
-struct	Sym
-{
-	vlong	value;
-	uint	sig;
-	char	type;
-	char	*name;
-	vlong	gotype;
-	int	sequence;	// order in file
-};
-
-
-/*
- *	Supported architectures:
- *		mips,
- *		68020,
- *		i386,
- *		amd64,
- *		sparc,
- *		sparc64,
- *		mips2 (R4000)
- *		arm
- *		powerpc,
- *		powerpc64
- *		alpha
- */
-enum
-{
-	MMIPS,			/* machine types */
-	MSPARC,
-	M68020,
-	MI386,
-	MI960,			/* retired */
-	M3210,			/* retired */
-	MMIPS2,
-	NMIPS2,
-	M29000,			/* retired */
-	MARM,
-	MPOWER,
-	MALPHA,
-	NMIPS,
-	MSPARC64,
-	MAMD64,
-	MPOWER64,
-				/* 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,		/* 0.out */
-	FALPHA,			/* 7.out */
-	FALPHAB,		/* DEC Alpha bootable */
-	FMIPSLE,		/* 3k little endian */
-	FSPARC64,		/* u.out */
-	FAMD64,			/* 6.out */
-	FAMD64B,		/* 6.out bootable */
-	FPOWER64,		/* 9.out */
-	FPOWER64B,		/* 9.out bootable */
-	FWINPE,			/* windows PE executable */
-
-	ANONE = 0,		/* dissembler types */
-	AMIPS,
-	AMIPSCO,		/* native mips */
-	ASPARC,
-	ASUNSPARC,		/* native sun */
-	A68020,
-	AI386,
-	AI8086,			/* oh god */
-	AI960,			/* retired */
-	A29000,			/* retired */
-	AARM,
-	APOWER,
-	AALPHA,
-	ASPARC64,
-	AAMD64,
-	APOWER64,
-				/* object file types */
-	Obj68020 = 0,		/* .2 */
-	ObjSparc,		/* .k */
-	ObjMips,		/* .v */
-	Obj386,			/* .8 */
-	Obj960,			/* retired */
-	Obj3210,		/* retired */
-	ObjMips2,		/* .4 */
-	Obj29000,		/* retired */
-	ObjArm,			/* .5 */
-	ObjPower,		/* .q */
-	ObjMips2le,		/* .0 */
-	ObjAlpha,		/* .7 */
-	ObjSparc64,		/* .u */
-	ObjAmd64,		/* .6 */
-	ObjSpim,		/* .0 */
-	ObjPower64,		/* .9 */
-	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	Seg	Seg;
-
-typedef int Maprw(Map *m, Seg *s, uvlong addr, void *v, uint n, int isread);
-
-struct Seg {
-	char	*name;		/* the segment name */
-	int	fd;		/* file descriptor */
-	int	inuse;		/* in use - not in use */
-	int	cache;		/* should cache reads? */
-	uvlong	b;		/* base */
-	uvlong	e;		/* end */
-	vlong	f;		/* offset within file */
-	Maprw	*rw;		/* read/write fn for seg */
-};
-
-/*
- * 	Structure to map a segment to data
- */
-struct Map {
-	int	pid;
-	int	tid;
-	int	nsegs;	/* number of segments */
-	Seg	seg[1];	/* actually n of these */
-};
-
-/*
- *	Internal structure describing a symbol table entry
- */
-struct Symbol {
-	void 	*handle;		/* used internally - owning func */
-	struct {
-		char	*name;
-		vlong	value;		/* address or stack offset */
-		char	type;		/* as in a.out.h */
-		char	class;		/* as above */
-		int	index;		/* in findlocal, globalsym, textsym */
-	};
-};
-
-/*
- *	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 ?.c and set in executable.c
- *
- *	Machdata is defined in ?db.c
- *		and set in the debugger startup.
- */
-struct Mach{
-	char	*name;
-	int	mtype;			/* machine type code */
-	Reglist *reglist;		/* register set */
-	int32	regsize;		/* sizeof registers in bytes */
-	int32	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 */
-	uvlong	sb;			/* static base register value */
-	int	pgsize;			/* page size */
-	uvlong	kbase;			/* kernel base address */
-	uvlong	ktmask;			/* ktzero = kbase & ~ktmask */
-	uvlong	utop;			/* user stack top */
-	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 uvlong	(*Rgetter)(Map*, char*);
-typedef	void	(*Tracer)(Map*, uvlong, uvlong, Symbol*);
-
-struct	Machdata {		/* Machine-dependent debugger support */
-	uchar	bpinst[4];			/* break point instr. */
-	short	bpsize;				/* size of break point instr. */
-
-	ushort	(*swab)(ushort);		/* ushort to local byte order */
-	uint32	(*swal)(uint32);			/* uint32 to local byte order */
-	uvlong	(*swav)(uvlong);		/* uvlong to local byte order */
-	int	(*ctrace)(Map*, uvlong, uvlong, uvlong, Tracer); /* C traceback */
-	uvlong	(*findframe)(Map*, uvlong, uvlong, uvlong, uvlong);/* frame finder */
-	char*	(*excep)(Map*, Rgetter);	/* last exception */
-	uint32	(*bpfix)(uvlong);		/* breakpoint fixup */
-	int	(*sftos)(char*, int, void*);	/* single precision float */
-	int	(*dftos)(char*, int, void*);	/* double precision float */
-	int	(*foll)(Map*, uvlong, Rgetter, uvlong*);/* follow set */
-	int	(*das)(Map*, uvlong, char, char*, int);	/* symbolic disassembly */
-	int	(*hexinst)(Map*, uvlong, char*, int); 	/* hex disassembly */
-	int	(*instsize)(Map*, uvlong);	/* instruction size */
-};
-
-/*
- *	Common a.out header describing all architectures
- */
-typedef struct Fhdr
-{
-	char	*name;		/* identifier of executable */
-	uchar	type;		/* file type - see codes above */
-	uchar	hdrsz;		/* header size */
-	uchar	_magic;		/* _MAGIC() magic */
-	uchar	spare;
-	int32	magic;		/* magic number */
-	uvlong	txtaddr;	/* text address */
-	vlong	txtoff;		/* start of text in file */
-	uvlong	dataddr;	/* start of data segment */
-	vlong	datoff;		/* offset to data seg in file */
-	vlong	symoff;		/* offset of symbol table in file */
-	uvlong	entry;		/* entry point */
-	vlong	sppcoff;	/* offset of sp-pc table in file */
-	vlong	lnpcoff;	/* offset of line number-pc table in file */
-	int32	txtsz;		/* text size */
-	int32	datsz;		/* size of data seg */
-	int32	bsssz;		/* size of bss */
-	int32	symsz;		/* size of symbol table */
-	int32	sppcsz;		/* size of sp-pc table */
-	int32	lnpcsz;		/* size of line number-pc table */
-} Fhdr;
-
-extern	int	asstype;	/* dissembler type - machdata.c */
-extern	Machdata *machdata;	/* jump vector - machdata.c */
-
-int		beieee80ftos(char*, int, void*);
-int		beieeesftos(char*, int, void*);
-int		beieeedftos(char*, int, void*);
-ushort		beswab(ushort);
-uint32		beswal(uint32);
-uvlong		beswav(uvlong);
-uvlong		ciscframe(Map*, uvlong, uvlong, uvlong, uvlong);
-int		cisctrace(Map*, uvlong, uvlong, uvlong, Tracer);
-int		crackhdr(int fd, Fhdr*);
-uvlong		file2pc(char*, int32);
-int		fileelem(Sym**, uchar *, char*, int);
-int32		fileline(char*, int, uvlong);
-int		filesym(int, char*, int);
-int		findlocal(Symbol*, char*, Symbol*);
-int		findseg(Map*, char*);
-int		findsym(uvlong, int, Symbol *);
-int		fnbound(uvlong, uvlong*);
-int		fpformat(Map*, Reglist*, char*, int, int);
-int		get1(Map*, uvlong, uchar*, int);
-int		get2(Map*, uvlong, ushort*);
-int		get4(Map*, uvlong, uint32*);
-int		get8(Map*, uvlong, uvlong*);
-int		geta(Map*, uvlong, uvlong*);
-int		getauto(Symbol*, int, int, Symbol*);
-Sym*		getsym(int);
-int		globalsym(Symbol *, int);
-char*		_hexify(char*, uint32, int);
-int		ieeesftos(char*, int, uint32);
-int		ieeedftos(char*, int, uint32, uint32);
-int		isar(Biobuf*);
-int		leieee80ftos(char*, int, void*);
-int		leieeesftos(char*, int, void*);
-int		leieeedftos(char*, int, void*);
-ushort		leswab(ushort);
-uint32		leswal(uint32);
-uvlong		leswav(uvlong);
-uvlong		line2addr(int32, uvlong, uvlong);
-Map*		loadmap(Map*, int, Fhdr*);
-int		localaddr(Map*, char*, char*, uvlong*, 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**);
-uvlong		pc2sp(uvlong);
-int32		pc2line(uvlong);
-int		put1(Map*, uvlong, uchar*, int);
-int		put2(Map*, uvlong, ushort);
-int		put4(Map*, uvlong, uint32);
-int		put8(Map*, uvlong, uvlong);
-int		puta(Map*, uvlong, uvlong);
-int		readar(Biobuf*, int, vlong, int);
-int		readobj(Biobuf*, int);
-uvlong		riscframe(Map*, uvlong, uvlong, uvlong, uvlong);
-int		risctrace(Map*, uvlong, uvlong, uvlong, Tracer);
-int		setmap(Map*, int, uvlong, uvlong, vlong, char*, Maprw *rw);
-Sym*		symbase(int32*);
-int		syminit(int, Fhdr*);
-int		symoff(char*, int, uvlong, int);
-void		textseg(uvlong, Fhdr*);
-int		textsym(Symbol*, int);
-void		unusemap(Map*, int);
-
-Map*		attachproc(int pid, Fhdr *fp);
-int		ctlproc(int pid, char *msg);
-void		detachproc(Map *m);
-int		procnotes(int pid, char ***pnotes);
-char*		proctextfile(int pid);
-int		procthreadpids(int pid, int *tid, int ntid);
-char*	procstatus(int);
-
-Maprw	fdrw;
diff --git a/include/plan9/mach.h b/include/plan9/mach.h
deleted file mode 100644
index 636f44fe8..000000000
--- a/include/plan9/mach.h
+++ /dev/null
@@ -1,5 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#include "../mach.h"
diff --git a/include/plan9/ureg_amd64.h b/include/plan9/ureg_amd64.h
deleted file mode 100644
index a7d6ed1fc..000000000
--- a/include/plan9/ureg_amd64.h
+++ /dev/null
@@ -1,5 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#include "../ureg_amd64.h"
diff --git a/include/plan9/ureg_arm.h b/include/plan9/ureg_arm.h
deleted file mode 100644
index fdb0d27ea..000000000
--- a/include/plan9/ureg_arm.h
+++ /dev/null
@@ -1,5 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#include "../ureg_arm.h"
diff --git a/include/plan9/ureg_x86.h b/include/plan9/ureg_x86.h
deleted file mode 100644
index 6fc481932..000000000
--- a/include/plan9/ureg_x86.h
+++ /dev/null
@@ -1,5 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#include "../ureg_x86.h"
diff --git a/include/ureg_amd64.h b/include/ureg_amd64.h
deleted file mode 100644
index 9c793bc62..000000000
--- a/include/ureg_amd64.h
+++ /dev/null
@@ -1,59 +0,0 @@
-// Inferno utils/libmach/ureg6.h
-// http://code.google.com/p/inferno-os/source/browse/utils/libmach/ureg6.h
-//
-//	Copyright © 1994-1999 Lucent Technologies Inc.
-//	Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
-//	Portions Copyright © 1997-1999 Vita Nuova Limited.
-//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
-//	Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others.
-//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-typedef struct UregAmd64 UregAmd64;
-struct UregAmd64 {
-	u64int	ax;
-	u64int	bx;
-	u64int	cx;
-	u64int	dx;
-	u64int	si;
-	u64int	di;
-	u64int	bp;
-	u64int	r8;
-	u64int	r9;
-	u64int	r10;
-	u64int	r11;
-	u64int	r12;
-	u64int	r13;
-	u64int	r14;
-	u64int	r15;
-
-	u16int	ds;
-	u16int	es;
-	u16int	fs;
-	u16int	gs;
-
-	u64int	type;
-	u64int	error;		/* error code (or zero) */
-	u64int	ip;		/* pc */
-	u64int	cs;		/* old context */
-	u64int	flags;		/* old flags */
-	u64int	sp;		/* sp */
-	u64int	ss;		/* old stack segment */
-};
diff --git a/include/ureg_arm.h b/include/ureg_arm.h
deleted file mode 100644
index 11f98aa60..000000000
--- a/include/ureg_arm.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// Inferno utils/libmach/ureg5.h
-// http://code.google.com/p/inferno-os/source/browse/utils/libmach/ureg5.h
-//
-//	Copyright © 1994-1999 Lucent Technologies Inc.
-//	Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
-//	Portions Copyright © 1997-1999 Vita Nuova Limited.
-//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
-//	Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others.
-//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-typedef struct UregArm UregArm;
-struct UregArm {
-	uint	r0;
-	uint	r1;
-	uint	r2;
-	uint	r3;
-	uint	r4;
-	uint	r5;
-	uint	r6;
-	uint	r7;
-	uint	r8;
-	uint	r9;
-	uint	r10;
-	uint	r11;
-	uint	r12;
-	uint	r13;
-	uint	r14;
-	uint	link;
-	uint	type;
-	uint	psr;
-	uint	pc;
-};
diff --git a/include/ureg_x86.h b/include/ureg_x86.h
deleted file mode 100644
index 641016def..000000000
--- a/include/ureg_x86.h
+++ /dev/null
@@ -1,54 +0,0 @@
-// Inferno utils/libmach/ureg8.h
-// http://code.google.com/p/inferno-os/source/browse/utils/libmach/ureg8.h
-//
-//	Copyright © 1994-1999 Lucent Technologies Inc.
-//	Power PC support Copyright © 1995-2004 C H Forsyth (forsyth@terzarima.net).
-//	Portions Copyright © 1997-1999 Vita Nuova Limited.
-//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).
-//	Revisions Copyright © 2000-2004 Lucent Technologies Inc. and others.
-//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-typedef struct Ureg386 Ureg386;
-struct Ureg386
-{
-	uint32	di;		/* general registers */
-	uint32	si;		/* ... */
-	uint32	bp;		/* ... */
-	uint32	nsp;
-	uint32	bx;		/* ... */
-	uint32	dx;		/* ... */
-	uint32	cx;		/* ... */
-	uint32	ax;		/* ... */
-	uint32	gs;		/* data segments */
-	uint32	fs;		/* ... */
-	uint32	es;		/* ... */
-	uint32	ds;		/* ... */
-	uint32	trap;		/* trap type */
-	uint32	ecode;		/* error code (or zero) */
-	uint32	pc;		/* pc */
-	uint32	cs;		/* old context */
-	uint32	flags;		/* old flags */
-	union {
-		uint32	usp;
-		uint32	sp;
-	};
-	uint32	ss;		/* old stack segment */
-};