5l, 6l, 8l: accept only one object file

(package main; others are pulled in automatically)

R=ken2
CC=golang-dev
https://golang.org/cl/194069

src/cmd/5l/obj.c

@@ -80,7 +80,7 @@ linkername[] =
 void
 usage(void)
 {
-	fprint(2, "usage: 5l [-options] objects\n");
+	fprint(2, "usage: 5l [-options] main.5\n");
 	errorexit();
 }
 
@@ -144,7 +144,7 @@ main(int argc, char *argv[])
 
 	USED(argc);
 
-	if(*argv == 0)
+	if(argc != 1)
 		usage();
 
 	libinit();
@@ -258,8 +258,8 @@ main(int argc, char *argv[])
 	firstp = prg();
 	lastp = firstp;
 
-	while(*argv)
-		objfile(*argv++, "main");
+	objfile(argv[0], "main");
+
 	if(!debug['l'])
 		loadlib();
 

src/cmd/6l/obj.c

@@ -76,7 +76,7 @@ isobjfile(char *f)
 void
 usage(void)
 {
-	fprint(2, "usage: 6l [-options] [-E entry] [-H head] [-L dir] [-T text] [-R rnd] [-o out] files...\n");
+	fprint(2, "usage: 6l [-options] [-E entry] [-H head] [-L dir] [-T text] [-R rnd] [-o out] main.6\n");
 	exits("usage");
 }
 
@@ -136,8 +136,8 @@ main(int argc, char *argv[])
 			readundefs(ARGF(), SIMPORT);
 		break;
 	} ARGEND
-	USED(argc);
-	if(*argv == 0)
+
+	if(argc != 1)
 		usage();
 
 	libinit();
@@ -346,8 +346,7 @@ main(int argc, char *argv[])
 	firstp = prg();
 	lastp = firstp;
 
-	while(*argv)
-		objfile(*argv++, "main");
+	objfile(argv[0], "main");
 
 	if(!debug['l'])
 		loadlib();

src/cmd/8l/obj.c

@@ -81,7 +81,7 @@ isobjfile(char *f)
 void
 usage(void)
 {
-	fprint(2, "usage: 8l [-options] [-E entry] [-H head] [-L dir] [-T text] [-R rnd] [-o out] files...\n");
+	fprint(2, "usage: 8l [-options] [-E entry] [-H head] [-L dir] [-T text] [-R rnd] [-o out] main.8\n");
 	exits("usage");
 }
 
@@ -142,8 +142,8 @@ main(int argc, char *argv[])
 			readundefs(ARGF(), SIMPORT);
 		break;
 	} ARGEND
-	USED(argc);
-	if(*argv == 0)
+
+	if(argc != 1)
 		usage();
 
 	mywhatsys();	// get goos
@@ -384,8 +384,7 @@ main(int argc, char *argv[])
 	firstp = prg();
 	lastp = firstp;
 
-	while(*argv)
-		objfile(*argv++, "main");
+	objfile(argv[0], "main");
 
 	if(!debug['l'])
 		loadlib();

test/fixedbugs/bug160.go

-// $G $D/bug160.dir/x.go && $G $D/bug160.dir/y.go && $L y.$A x.$A && ./$A.out
+// $G $D/bug160.dir/x.go && $G $D/bug160.dir/y.go && $L y.$A && ./$A.out
 
 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style