runtime: rename _rt0_$GOARCH to _rt0_go

There's no reason to use a different name on each architecture,
and doing so makes it impossible for portable code to refer to
the original Go runtime entry point. Rename it _rt0_go everywhere.

This is a global search and replace only.

R=golang-dev, bradfitz, minux.ma
CC=golang-dev
https://golang.org/cl/10196043

src/pkg/runtime/asm_386.s

@@ -4,7 +4,7 @@
 
 #include "zasm_GOOS_GOARCH.h"
 
-TEXT _rt0_386(SB),7,$0
+TEXT _rt0_go(SB),7,$0
 	// copy arguments forward on an even stack
 	MOVL	argc+0(FP), AX
 	MOVL	argv+4(FP), BX

src/pkg/runtime/asm_amd64.s

@@ -4,7 +4,7 @@
 
 #include "zasm_GOOS_GOARCH.h"
 
-TEXT _rt0_amd64(SB),7,$-8
+TEXT _rt0_go(SB),7,$-8
 	// copy arguments forward on an even stack
 	MOVQ	DI, AX		// argc
 	MOVQ	SI, BX		// argv

src/pkg/runtime/asm_arm.s

@@ -5,7 +5,7 @@
 #include "zasm_GOOS_GOARCH.h"
 
 // using frame size $-4 means do not save LR on stack.
-TEXT _rt0_arm(SB),7,$-4
+TEXT _rt0_go(SB),7,$-4
 	MOVW	$0xcafebabe, R12
 
 	// copy arguments forward on an even stack

src/pkg/runtime/rt0_darwin_386.s

@@ -11,4 +11,4 @@ TEXT _rt0_386_darwin(SB),7,$8
 	INT	$3
 
 TEXT main(SB),7,$0
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)

src/pkg/runtime/rt0_darwin_amd64.s

@@ -9,5 +9,5 @@ TEXT _rt0_amd64_darwin(SB),7,$-8
 	JMP	AX
 
 TEXT main(SB),7,$-8
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX

src/pkg/runtime/rt0_freebsd_386.s

@@ -11,4 +11,4 @@ TEXT _rt0_386_freebsd(SB),7,$8
 	INT	$3
 
 TEXT main(SB),7,$0
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)

src/pkg/runtime/rt0_freebsd_amd64.s

@@ -9,5 +9,5 @@ TEXT _rt0_amd64_freebsd(SB),7,$-8
 	JMP	AX
 
 TEXT main(SB),7,$-8
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX

src/pkg/runtime/rt0_freebsd_arm.s

@@ -5,4 +5,4 @@
 // FreeBSD and Linux use the same linkage to main
 
 TEXT _rt0_arm_freebsd(SB),7,$-4
-	B	_rt0_arm(SB)
+	B	_rt0_go(SB)

src/pkg/runtime/rt0_linux_386.s

@@ -12,7 +12,7 @@ TEXT _rt0_386_linux(SB),7,$8
 	INT	$3
 
 TEXT main(SB),7,$0
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)
 
 TEXT _fallback_vdso(SB),7,$0
 	INT	$0x80

src/pkg/runtime/rt0_linux_amd64.s

@@ -9,5 +9,5 @@ TEXT _rt0_amd64_linux(SB),7,$-8
 	JMP	AX
 
 TEXT main(SB),7,$-8
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX

src/pkg/runtime/rt0_linux_arm.s

@@ -41,7 +41,7 @@ TEXT _rt0_arm_linux(SB),7,$-4
 	SUB	$4, R13 // fake a stack frame for runtime·setup_auxv
 	BL	runtime·setup_auxv(SB)
 	ADD	$4, R13
-	B	_rt0_arm(SB)
+	B	_rt0_go(SB)
 
 TEXT bad_abi<>(SB),7,$-4
 	// give diagnosis and exit

src/pkg/runtime/rt0_netbsd_386.s

@@ -11,4 +11,4 @@ TEXT _rt0_386_netbsd(SB),7,$8
 	INT	$3
 
 TEXT main(SB),7,$0
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)

src/pkg/runtime/rt0_netbsd_amd64.s

@@ -9,5 +9,5 @@ TEXT _rt0_amd64_netbsd(SB),7,$-8
 	JMP	AX
 
 TEXT main(SB),7,$-8
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX

src/pkg/runtime/rt0_netbsd_arm.s

@@ -5,4 +5,4 @@
 // FreeBSD/NetBSD and Linux use the same linkage to main
 
 TEXT _rt0_arm_netbsd(SB),7,$-4
-	B _rt0_arm(SB)
+	B _rt0_go(SB)

src/pkg/runtime/rt0_openbsd_386.s

@@ -11,4 +11,4 @@ TEXT _rt0_386_openbsd(SB),7,$8
 	INT	$3
 
 TEXT main(SB),7,$0
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)

src/pkg/runtime/rt0_openbsd_amd64.s

@@ -9,5 +9,5 @@ TEXT _rt0_amd64_openbsd(SB),7,$-8
 	JMP	AX
 
 TEXT main(SB),7,$-8
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX

src/pkg/runtime/rt0_plan9_386.s

@@ -33,7 +33,7 @@ argv_fix:
 	PUSHL	AX
 	PUSHL	$-1
 
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)
 
 DATA  runtime·isplan9(SB)/4, $1
 GLOBL runtime·isplan9(SB), $4

src/pkg/runtime/rt0_plan9_amd64.s

@@ -5,7 +5,7 @@
 TEXT _rt0_amd64_plan9(SB),7,$-8
 	LEAQ	8(SP), SI // argv
 	MOVQ	0(SP), DI // argc
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX
 
 DATA runtime·isplan9(SB)/4, $1

src/pkg/runtime/rt0_windows_386.s

@@ -11,7 +11,7 @@ TEXT _rt0_386_windows(SB),7,$12
 	JMP	main(SB)
 
 TEXT main(SB),7,$0
-	JMP	_rt0_386(SB)
+	JMP	_rt0_go(SB)
 
 
 DATA  runtime·iswindows(SB)/4, $1

src/pkg/runtime/rt0_windows_amd64.s

@@ -11,7 +11,7 @@ TEXT _rt0_amd64_windows(SB),7,$-8
 	JMP	AX
 
 TEXT main(SB),7,$-8
-	MOVQ	$_rt0_amd64(SB), AX
+	MOVQ	$_rt0_go(SB), AX
 	JMP	AX
 
 DATA  runtime·iswindows(SB)/4, $1