diff --git a/sys/src/cmd/rc/code.c b/sys/src/cmd/rc/code.c
index 8d64500ae..646b6a81a 100644
--- a/sys/src/cmd/rc/code.c
+++ b/sys/src/cmd/rc/code.c
@@ -43,7 +43,7 @@ compile(tree *t)
 	emiti(0);			/* reference count */
 	outcode(t, flag['e']?1:0);
 	if(nerror){
-		efree((char *)codebuf);
+		free(codebuf);
 		return 0;
 	}
 	readhere();
@@ -484,12 +484,12 @@ codefree(code *cp)
 		|| p->f==Xsubshell || p->f==Xtrue) p++;
 		else if(p->f==Xdup || p->f==Xpipefd) p+=2;
 		else if(p->f==Xpipe) p+=4;
-		else if(p->f==Xglobs) efree(p[1].s), p+=2;
-		else if(p->f==Xword || p->f==Xdelhere) efree((++p)->s);
+		else if(p->f==Xglobs) free(p[1].s), p+=2;
+		else if(p->f==Xword || p->f==Xdelhere) free((++p)->s);
 		else if(p->f==Xfn){
-			efree(p[2].s);
+			free(p[2].s);
 			p+=2;
 		}
 	}
-	efree((char *)cp);
+	free(cp);
 }
diff --git a/sys/src/cmd/rc/exec.c b/sys/src/cmd/rc/exec.c
index bf40aa7f2..dd194db87 100644
--- a/sys/src/cmd/rc/exec.c
+++ b/sys/src/cmd/rc/exec.c
@@ -68,8 +68,8 @@ popword(void)
 	if(p==0)
 		panic("popword but no word!", 0);
 	runq->argv->words = p->next;
-	efree(p->word);
-	efree((char *)p);
+	free(p->word);
+	free(p);
 }
 
 void
@@ -78,8 +78,8 @@ freelist(word *w)
 	word *nw;
 	while(w){
 		nw = w->next;
-		efree(w->word);
-		efree((char *)w);
+		free(w->word);
+		free(w);
 		w = nw;
 	}
 }
@@ -101,7 +101,7 @@ poplist(void)
 		panic("poplist but no argv", 0);
 	freelist(p->words);
 	runq->argv = p->next;
-	efree((char *)p);
+	free(p);
 }
 
 int
@@ -433,7 +433,7 @@ Xpopredir(void)
 	runq->redir = rp->next;
 	if(rp->type==ROPEN)
 		close(rp->from);
-	efree((char *)rp);
+	free(rp);
 }
 
 void
@@ -444,7 +444,7 @@ Xreturn(void)
 	while(p->argv) poplist();
 	codefree(p->code);
 	runq = p->ret;
-	efree((char *)p);
+	free(p);
 	if(runq==0)
 		Exit(getstatus());
 }
@@ -541,7 +541,7 @@ Xmatch(void)
 			setstatus("");
 			break;
 		}
-	efree(subject);
+	free(subject);
 	poplist();
 	poplist();
 }
@@ -559,7 +559,7 @@ Xcase(void)
 			break;
 		}
 	}
-	efree(s);
+	free(s);
 	if(ok)
 		runq->pc++;
 	else
@@ -576,8 +576,8 @@ conclist(word *lp, word *rp, word *tail)
 	for(end = &v;;){
 		ln = strlen(lp->word), rn = strlen(rp->word);
 		p = Newword(emalloc(ln+rn+1), (word *)0);
-		Memcpy(p->word, lp->word, ln);
-		Memcpy(p->word+ln, rp->word, rn+1);
+		memmove(p->word, lp->word, ln);
+		memmove(p->word+ln, rp->word, rn+1);
 		if(lp->glob || rp->glob)
 			p->glob = Globsize(p->word);
 		*end = p, end = &p->next;
@@ -811,9 +811,9 @@ Xunlocal(void)
 	runq->local = v->next;
 	hid = vlook(v->name);
 	hid->changed = 1;
-	efree(v->name);
+	free(v->name);
 	freewords(v->val);
-	efree((char *)v);
+	free(v);
 }
 
 void
@@ -821,9 +821,9 @@ freewords(word *w)
 {
 	word *nw;
 	while(w){
-		efree(w->word);
+		free(w->word);
 		nw = w->next;
-		efree((char *)w);
+		free(w);
 		w = nw;
 	}
 }
@@ -911,7 +911,7 @@ Xrdcmds(void)
 	if(yyparse()){
 		if(!p->iflag || p->eof && !Eintr()){
 			if(p->cmdfile)
-				efree(p->cmdfile);
+				free(p->cmdfile);
 			closeio(p->cmdfd);
 			Xreturn();	/* should this be omitted? */
 		}
diff --git a/sys/src/cmd/rc/fns.h b/sys/src/cmd/rc/fns.h
index 5d5be42e8..1afe9ce38 100644
--- a/sys/src/cmd/rc/fns.h
+++ b/sys/src/cmd/rc/fns.h
@@ -10,7 +10,6 @@ void	Exit(char*);
 int	ForkExecute(char*, char**, int, int, int);
 int	Globsize(char*);
 int	Isatty(int);
-void	Memcpy(void*, void*, long);
 void	Noerror(void);
 int	Opendir(char*);
 long	Read(int, void*, long);
diff --git a/sys/src/cmd/rc/glob.c b/sys/src/cmd/rc/glob.c
index 10dff0421..e52b420ee 100644
--- a/sys/src/cmd/rc/glob.c
+++ b/sys/src/cmd/rc/glob.c
@@ -36,7 +36,7 @@ globsort(word *left, word *right)
 	for(a = left,n = 0;a!=right;a = a->next,n++) list[n] = a->word;
 	qsort((void *)list, n, sizeof(void *), globcmp);
 	for(a = left,n = 0;a!=right;a = a->next,n++) a->word = list[n];
-	efree((char *)list);
+	free(list);
 }
 
 /*
@@ -112,15 +112,15 @@ globword(word *w)
 	memset(name, 0, w->glob);
 	right = w->next;
 	left = globdir(right, w->word, name, name);
-	efree(name);
+	free(name);
 	if(left == right) {
 		deglob(w->word);
 		w->glob = 0;
 	} else {
-		efree(w->word);
+		free(w->word);
 		globsort(left, right);
 		*w = *left;
-		efree(left);
+		free(left);
 	}
 }
 
diff --git a/sys/src/cmd/rc/here.c b/sys/src/cmd/rc/here.c
index 5dbff855f..922911f80 100644
--- a/sys/src/cmd/rc/here.c
+++ b/sys/src/cmd/rc/here.c
@@ -81,7 +81,7 @@ readhere(void)
 		closeio(f);
 		cleanhere(h->name);
 		nexth = h->next;
-		efree((char *)h);
+		free(h);
 	}
 	here = 0;
 	doprompt = 1;
diff --git a/sys/src/cmd/rc/io.c b/sys/src/cmd/rc/io.c
index 8b2ba97ee..2010e80ef 100644
--- a/sys/src/cmd/rc/io.c
+++ b/sys/src/cmd/rc/io.c
@@ -230,7 +230,7 @@ opencore(char *s, int len)
 	f->fd = -1 /*open("/dev/null", 0)*/;
 	f->bufp = f->strp = buf;
 	f->ebuf = buf+len;
-	Memcpy(buf, s, len);
+	memmove(buf, s, len);
 	return f;
 }
 
@@ -251,8 +251,8 @@ closeio(io *io)
 	if(io->fd>=0)
 		close(io->fd);
 	if(io->strp)
-		efree(io->strp);
-	efree(io);
+		free(io->strp);
+	free(io);
 }
 
 int
diff --git a/sys/src/cmd/rc/plan9.c b/sys/src/cmd/rc/plan9.c
index 61ddfaba7..412e6957d 100644
--- a/sys/src/cmd/rc/plan9.c
+++ b/sys/src/cmd/rc/plan9.c
@@ -144,7 +144,7 @@ Vinit(void)
 					setvar(ent[i].name, val);
 					vlook(ent[i].name)->changed = 0;
 					close(f);
-					efree(buf);
+					free(buf);
 				}
 			}
 		}
@@ -335,7 +335,7 @@ Execute(word *args, word *path)
 	rerrstr(file, sizeof file);
 	setstatus(file);
 	pfmt(err, "%s: %s\n", argv[1], file);
-	efree((char *)argv);
+	free(argv);
 }
 #define	NDIR	256		/* shoud be a better way */
 
@@ -574,24 +574,6 @@ Abort(void)
 	Exit("aborting");
 }
 
-void
-Memcpy(void *a, void *b, long n)
-{
-	memmove(a, b, n);
-}
-
-void*
-Malloc(ulong n)
-{
-	return malloc(n);
-}
-
-void*
-Realloc(void *p, ulong n)
-{
-	return realloc(p, n);
-}
-
 int *waitpids;
 int nwaitpids;
 
diff --git a/sys/src/cmd/rc/rc.h b/sys/src/cmd/rc/rc.h
index eec0e068f..7b7b3b343 100644
--- a/sys/src/cmd/rc/rc.h
+++ b/sys/src/cmd/rc/rc.h
@@ -97,12 +97,8 @@ var *gvar[NVAR];				/* hash for globals */
 
 #define	new(type)	((type *)emalloc(sizeof(type)))
 
-void *Malloc(ulong);
-void *Realloc(void *, ulong);
-
 void *emalloc(long);
 void *erealloc(void *, long);
-void efree(void *);
 char *estrdup(char*);
 
 #define	NOFILE	128		/* should come from <param.h> */
diff --git a/sys/src/cmd/rc/simple.c b/sys/src/cmd/rc/simple.c
index 89c8699c1..cec72f5d7 100644
--- a/sys/src/cmd/rc/simple.c
+++ b/sys/src/cmd/rc/simple.c
@@ -235,8 +235,8 @@ execshift(void)
 	star = vlook("*");
 	for(;star->val;--n){
 		a = star->val->next;
-		efree(star->val->word);
-		efree(star->val);
+		free(star->val->word);
+		free(star->val);
 		star->val = a;
 		star->changed = 1;
 	}
@@ -295,7 +295,7 @@ execeval(void)
 	cmdline[len] = '\n';
 	poplist();
 	execcmds(opencore(cmdline, len+1));
-	efree(cmdline);
+	free(cmdline);
 }
 union code dotcmds[14];
 
@@ -376,7 +376,7 @@ execdot(void)
 	/* free caller's copy of $* */
 	av = p->argv;
 	p->argv = av->next;
-	efree(av);
+	free(av);
 	/* push $0 value */
 	pushlist();
 	pushword(zero);
diff --git a/sys/src/cmd/rc/subr.c b/sys/src/cmd/rc/subr.c
index 0bdf99742..0a6f5f36e 100644
--- a/sys/src/cmd/rc/subr.c
+++ b/sys/src/cmd/rc/subr.c
@@ -6,7 +6,7 @@
 void *
 emalloc(long n)
 {
-	void *p = Malloc(n);
+	void *p = malloc(n);
 	if(p==0)
 		panic("Can't malloc %d bytes", n);
 	return p;
@@ -15,20 +15,12 @@ emalloc(long n)
 void*
 erealloc(void *p, long n)
 {
-	p = Realloc(p, n);
+	p = realloc(p, n);
 	if(p==0 && n!=0)
 		panic("Can't realloc %d bytes\n", n);
 	return p;
 }
 
-void
-efree(void *p)
-{
-	if(p)
-		free(p);
-	else pfmt(err, "free 0\n");
-}
-
 char*
 estrdup(char *s)
 {
@@ -37,7 +29,7 @@ estrdup(char *s)
 
 	n = strlen(s)+1;
 	d = emalloc(n);
-	Memcpy(d, s, n);
+	memmove(d, s, n);
 	return d;
 }
 
diff --git a/sys/src/cmd/rc/tree.c b/sys/src/cmd/rc/tree.c
index 9481f0f7b..2d0750cf4 100644
--- a/sys/src/cmd/rc/tree.c
+++ b/sys/src/cmd/rc/tree.c
@@ -27,8 +27,8 @@ freenodes(void)
 	for(t = treenodes;t;t = u){
 		u = t->next;
 		if(t->str)
-			efree(t->str);
-		efree(t);
+			free(t->str);
+		free(t);
 	}
 	treenodes = 0;
 }
@@ -143,6 +143,6 @@ freetree(tree *p)
 	freetree(p->child[1]);
 	freetree(p->child[2]);
 	if(p->str)
-		efree(p->str);
-	efree(p);
+		free(p->str);
+	free(p);
 }
diff --git a/sys/src/cmd/rc/unix.c b/sys/src/cmd/rc/unix.c
index e844bc5cc..905bbbbd5 100644
--- a/sys/src/cmd/rc/unix.c
+++ b/sys/src/cmd/rc/unix.c
@@ -277,8 +277,8 @@ register struct word *args, *path;
 Bad:
 	setstatus(msg);
 	pfmt(err, "%s: %s\n", argv[1], msg);
-	efree(env);
-	efree(argv);
+	free(env);
+	free(argv);
 }
 #define	NDIR	14		/* should get this from param.h */
 Globsize(p)
@@ -464,21 +464,3 @@ execumask(){		/* wrong -- should fork before writing */
 	setstatus("");
 	poplist();
 }
-Memcpy(a, b, n)
-void *a, *b;
-long n;
-{
-	memmove(a, b, n);
-}
-
-void*
-Malloc(n)
-{
-	return (void *)malloc(n);
-}
-
-void*
-Realloc(void *p, ulong n)
-{
-	return realloc(p, n);
-}
diff --git a/sys/src/cmd/rc/win32.c b/sys/src/cmd/rc/win32.c
index 2166f7ac8..b33f8b545 100644
--- a/sys/src/cmd/rc/win32.c
+++ b/sys/src/cmd/rc/win32.c
@@ -84,7 +84,7 @@ Vinit(void)
 					setvar(ent[i].name, val);
 					vlook(ent[i].name)->changed = 0;
 					close(f);
-					efree(buf);
+					free(buf);
 				}
 			}
 		}
@@ -301,7 +301,7 @@ Execute(word *args, word *path)
 	rerrstr(file, sizeof file);
 	setstatus(file);
 	pfmt(err, "%s: %s\n", argv[1], file);
-	efree(argv);
+	free(argv);
 }
 #define	NDIR	256		/* shoud be a better way */
 
@@ -547,21 +547,3 @@ Abort(void)
 	flush(err);
 	Exit("aborting");
 }
-
-void
-Memcpy(void *a, void *b, long n)
-{
-	memmove(a, b, n);
-}
-
-void*
-Malloc(ulong n)
-{
-	return malloc(n);
-}
-
-void*
-Realloc(void *p, ulong n)
-{
-	return realloc(p, n);
-}