runtime: more NOPTR

Fixes (or makes better) various builds.

TBR=iant
CC=golang-codereviews
https://golang.org/cl/146280043

src/runtime/cgo/dragonfly.c

@@ -2,11 +2,15 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+#include "textflag.h"
+
 // Supply environ and __progname, because we don't
 // link against the standard DragonFly crt0.o and the
 // libc dynamic library needs them.
 
+#pragma dataflag NOPTR
 char *environ[1];
+#pragma dataflag NOPTR
 char *__progname;
 
 #pragma dynexport environ environ

src/runtime/cgo/freebsd.c

@@ -2,11 +2,15 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+#include "textflag.h"
+
 // Supply environ and __progname, because we don't
 // link against the standard FreeBSD crt0.o and the
 // libc dynamic library needs them.
 
+#pragma dataflag NOPTR
 char *environ[1];
+#pragma dataflag NOPTR
 char *__progname;
 
 #pragma dynexport environ environ

src/runtime/cgo/netbsd.c

@@ -2,11 +2,15 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+#include "textflag.h"
+
 // Supply environ and __progname, because we don't
 // link against the standard NetBSD crt0.o and the
 // libc dynamic library needs them.
 
+#pragma dataflag NOPTR
 char *environ[1];
+#pragma dataflag NOPTR
 char *__progname;
 
 #pragma dynexport environ environ

src/runtime/cgo/openbsd.c

@@ -2,11 +2,15 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+#include "textflag.h"
+
 // Supply environ, __progname and __guard_local, because
 // we don't link against the standard OpenBSD crt0.o and
 // the libc dynamic library needs them.
 
+#pragma dataflag NOPTR
 char *environ[1];
+#pragma dataflag NOPTR
 char *__progname;
 long __guard_local;
 

src/runtime/os_windows.c

@@ -72,6 +72,7 @@ extern void *runtime·WaitForSingleObject;
 extern void *runtime·WriteFile;
 extern void *runtime·timeBeginPeriod;
 
+#pragma dataflag NOPTR
 void *runtime·GetQueuedCompletionStatusEx;
 
 extern uintptr runtime·externalthreadhandlerp;
@@ -289,7 +290,9 @@ typedef struct KSYSTEM_TIME {
 	int32	High2Time;
 } KSYSTEM_TIME;
 
+#pragma dataflag NOPTR
 const KSYSTEM_TIME* INTERRUPT_TIME	= (KSYSTEM_TIME*)0x7ffe0008;
+#pragma dataflag NOPTR
 const KSYSTEM_TIME* SYSTEM_TIME		= (KSYSTEM_TIME*)0x7ffe0014;
 
 static void badsystime(void);
@@ -500,6 +503,7 @@ runtime·ctrlhandler1(uint32 type)
 
 extern void runtime·dosigprof(Context *r, G *gp, M *mp);
 extern void runtime·profileloop(void);
+#pragma dataflag NOPTR
 static void *profiletimer;
 
 static void

src/runtime/rt0_windows_386.s

@@ -17,4 +17,4 @@ TEXT main(SB),NOSPLIT,$0
 
 
 DATA  runtime·iswindows(SB)/4, $1
-GLOBL runtime·iswindows(SB), $4
+GLOBL runtime·iswindows(SB), NOPTR, $4

src/runtime/rt0_windows_amd64.s

@@ -16,4 +16,4 @@ TEXT main(SB),NOSPLIT,$-8
 	JMP	AX
 
 DATA  runtime·iswindows(SB)/4, $1
-GLOBL runtime·iswindows(SB), $4
+GLOBL runtime·iswindows(SB), NOPTR, $4