libthread: remove unused internal functions and old xinc assembler files

sys/src/libthread/create.c

@@ -109,44 +109,3 @@ proccreate(void (*f)(void*), void *arg, uint stacksize)
 {
 	return procrfork(f, arg, stacksize, 0);
 }
-
-void
-_freeproc(Proc *p)
-{
-	Thread *t, *nextt;
-
-	for(t = p->threads.head; t; t = nextt){
-		if(t->cmdname)
-			free(t->cmdname);
-		assert(t->stk != nil);
-		free(t->stk);
-		nextt = t->nextt;
-		free(t);
-	}
-	free(p);
-}
-
-void
-_freethread(Thread *t)
-{
-	Proc *p;
-	Thread **l;
-
-	p = t->proc;
-	lock(&p->lock);
-	for(l=&p->threads.head; *l; l=&(*l)->nextt){
-		if(*l == t){
-			*l = t->nextt;
-			if(*l == nil)
-				p->threads.tail = l;
-			break;
-		}
-	}
-	unlock(&p->lock);
-	if (t->cmdname)
-		free(t->cmdname);
-	assert(t->stk != nil);
-	free(t->stk);
-	free(t);
-}
-

sys/src/libthread/threadimpl.h

@@ -159,8 +159,6 @@ struct Iocall
 	char		err[ERRMAX];
 };
 
-void	_freeproc(Proc*);
-void	_freethread(Thread*);
 Proc*	_newproc(void(*)(void*), void*, uint, char*, int, int);
 int	_procsplhi(void);
 void	_procsplx(int);
@@ -183,7 +181,6 @@ void*	_threadmalloc(long, int);
 void	_threadnote(void*, char*);
 void	_threadready(Thread*);
 void*	_threadrendezvous(void*, void*);
-void	_threadsignal(void);
 void	_threadsysfatal(char*, va_list);
 void**	_workerdata(void);
 

sys/src/libthread/xinc386.s

@@ -1,29 +0,0 @@
-/*#define XADDL(s,d) BYTE $0x0F; BYTE $0xC1; BYTE $((0<<6)|(s<<3)|(d))*/
-
-/*TEXT	xadd(SB),$0	/* long xadd(long *, long); */
-
-/*	MOVL	l+0(FP),BX
-/*	MOVL	i+4(FP),AX
-/*	LOCK
-/*	XADDL(0,3)
-/*	RET
-*/
-
-TEXT	_xinc(SB),$0	/* void _xinc(long *); */
-
-	MOVL	l+0(FP),AX
-	LOCK
-	INCL	0(AX)
-	RET
-
-TEXT	_xdec(SB),$0	/* long _xdec(long *); */
-
-	MOVL	l+0(FP),AX
-	LOCK
-	DECL	0(AX)
-	JZ	iszero
-	MOVL	$1, AX
-	RET
-iszero:
-	MOVL	$0, AX
-	RET

sys/src/libthread/xincalpha.s

@@ -1,19 +0,0 @@
-TEXT	_xdec(SB), $-8
-	MOVQ	R0, R1		/* p */
-dec1:
-	MOVLL	(R1), R0		/* *p */
-	SUBL		$1, R0
-	MOVQ	R0, R2
-	MOVLC	R2, (R1)		/* --(*p) */
-	BEQ		R2, dec1		/* write failed, retry */
-	RET
-
-TEXT	_xinc(SB), $-8
-	MOVQ	R0, R1		/* p */
-inc1:
-	MOVLL	(R1), R0		/* *p */
-	ADDL	$1, R0
-	MOVLC	R0, (R1)		/* (*p)++ */
-	BEQ		R0, inc1		/* write failed, retry */
-	RET
-

sys/src/libthread/xincamd64.s

@@ -1,20 +0,0 @@
-/*TEXT	xadd(SB),$0	/* long xadd(long *, long); */
-
-/*	MOVL	i+8(FP),AX
-/*	LOCK
-/*	XADDL	AX, (RARG)
-/*	RET
-*/
-
-TEXT	_xinc(SB),$0	/* void _xinc(long *); */
-
-	LOCK; INCL	0(RARG)
-	RET
-
-TEXT	_xdec(SB),$0	/* long _xdec(long *); */
-
-	MOVL	$0, AX
-	MOVL	$1, BX
-	LOCK; DECL	0(RARG)
-	CMOVLNE	BX, AX
-	RET

sys/src/libthread/xincarm.c

@@ -1 +0,0 @@
-#include "xincport.h"

sys/src/libthread/xincmips.s

@@ -1,46 +0,0 @@
-/*
- *	R4000 user level lock code
- */
-
-#define	LL(base, rt)	WORD	$((060<<26)|((base)<<21)|((rt)<<16))
-#define	SC(base, rt)	WORD	$((070<<26)|((base)<<21)|((rt)<<16))
-#define	NOOP		WORD	$0x27
-
-#ifdef oldstyle
-TEXT	xadd(SB), $0
-
-	MOVW	R1, R2		/* address of counter */
-loop:	MOVW	n+4(FP), R3	/* increment */
-	LL(2, 1)
-	NOOP
-	ADD	R1,R3,R3
-	SC(2, 3)
-	NOOP
-	BEQ	R3,loop
-	RET
-#endif
-
-TEXT	_xinc(SB), $0
-
-	MOVW	R1, R2		/* address of counter */
-loop:	MOVW	$1, R3
-	LL(2, 1)
-	NOOP
-	ADD	R1,R3,R3
-	SC(2, 3)
-	NOOP
-	BEQ	R3,loop
-	RET
-
-TEXT	_xdec(SB), $0
-
-	MOVW	R1, R2		/* address of counter */
-loop1:	MOVW	$-1, R3
-	LL(2, 1)
-	NOOP
-	ADD	R1,R3,R3
-	MOVW	R3, R1
-	SC(2, 3)
-	NOOP
-	BEQ	R3,loop1
-	RET

sys/src/libthread/xincport.h

@@ -1,25 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <thread.h>
-
-static Lock l;
-
-void
-_xinc(long *p)
-{
-
-	lock(&l);
-	(*p)++;
-	unlock(&l);
-}
-
-long
-_xdec(long *p)
-{
-	long r;
-
-	lock(&l);
-	r = --(*p);
-	unlock(&l);
-	return r;
-}

sys/src/libthread/xincpower.s

@@ -1,21 +0,0 @@
-TEXT	_xinc(SB),$0	/* void _xinc(long *); */
-
-	MOVW	R3, R4
-xincloop:
-	LWAR	(R4), R3
-	ADD		$1, R3
-	DCBT	(R4)				/* fix 405 errata cpu_210 */
-	STWCCC	R3, (R4)
-	BNE		xincloop
-	RETURN
-
-TEXT	_xdec(SB),$0	/* long _xdec(long *); */
-
-	MOVW	R3, R4
-xdecloop:
-	LWAR	(R4), R3
-	ADD		$-1, R3
-	DCBT	(R4)				/* fix 405 errata cpu_210 */
-	STWCCC	R3, (R4)
-	BNE		xdecloop
-	RETURN