runtime/cgo: make symbol naming consistent

The naming in this package is a disaster.
Make it all consistent.

Remove some 'static' from functions that will
be referred to from other files soon.

This CL is purely renames using global search and replace.

Submitting separately so that real changes will not
be drowned out by these renames in future CLs.

TBR=iant
CC=golang-dev
https://golang.org/cl/7416046

src/pkg/runtime/asm_386.s

@@ -14,22 +14,22 @@ TEXT _rt0_386(SB),7,$0
 	MOVL	BX, 124(SP)
 
 	// set default stack bounds.
-	// initcgo may update stackguard.
+	// _cgo_init may update stackguard.
 	MOVL	$runtime·g0(SB), BP
 	LEAL	(-64*1024+104)(SP), BX
 	MOVL	BX, g_stackguard(BP)
 	MOVL	SP, g_stackbase(BP)
 	
-	// if there is an initcgo, call it to let it
+	// if there is an _cgo_init, call it to let it
 	// initialize and to set up GS.  if not,
 	// we set up GS ourselves.
-	MOVL	initcgo(SB), AX
+	MOVL	_cgo_init(SB), AX
 	TESTL	AX, AX
 	JZ	needtls
 	PUSHL	BP
 	CALL	AX
 	POPL	BP
-	// skip runtime·ldt0setup(SB) and tls test after initcgo for non-windows
+	// skip runtime·ldt0setup(SB) and tls test after _cgo_init for non-windows
 	CMPL runtime·iswindows(SB), $0
 	JEQ ok
 needtls:

src/pkg/runtime/asm_amd64.s

@@ -14,14 +14,14 @@ TEXT _rt0_amd64(SB),7,$-8
 	MOVQ	BX, 24(SP)
 	
 	// create istack out of the given (operating system) stack.
-	// initcgo may update stackguard.
+	// _cgo_init may update stackguard.
 	MOVQ	$runtime·g0(SB), DI
 	LEAQ	(-64*1024+104)(SP), BX
 	MOVQ	BX, g_stackguard(DI)
 	MOVQ	SP, g_stackbase(DI)
 
-	// if there is an initcgo, call it.
-	MOVQ	initcgo(SB), AX
+	// if there is an _cgo_init, call it.
+	MOVQ	_cgo_init(SB), AX
 	TESTQ	AX, AX
 	JZ	needtls
 	// g0 already in DI

src/pkg/runtime/asm_arm.s

@@ -31,10 +31,10 @@ TEXT _rt0_arm(SB),7,$-4
 	MOVW	R13, g_stackbase(g)
 	BL	runtime·emptyfunc(SB)	// fault if stack check is wrong
 
-	// if there is an initcgo, call it.
-	MOVW	initcgo(SB), R2
+	// if there is an _cgo_init, call it.
+	MOVW	_cgo_init(SB), R2
 	CMP	$0, R2
-	MOVW.NE	g, R0 // first argument of initcgo is g
+	MOVW.NE	g, R0 // first argument of _cgo_init is g
 	BL.NE	(R2) // will clobber R0-R3
 
 	BL	runtime·checkgoarm(SB)
@@ -105,7 +105,7 @@ TEXT runtime·gogo(SB), 7, $-4
 	MOVW	0(FP), R1		// gobuf
 	MOVW	gobuf_g(R1), g
 	MOVW	0(g), R2		// make sure g != nil
-	MOVW	cgo_save_gm(SB), R2
+	MOVW	_cgo_save_gm(SB), R2
 	CMP 	$0, R2 // if in Cgo, we have to save g and m
 	BL.NE	(R2) // this call will clobber R0
 	MOVW	4(FP), R0		// return 2nd arg
@@ -121,7 +121,7 @@ TEXT runtime·gogocall(SB), 7, $-4
 	MOVW	4(FP), R1		// fn
 	MOVW	gobuf_g(R3), g
 	MOVW	0(g), R0		// make sure g != nil
-	MOVW	cgo_save_gm(SB), R0
+	MOVW	_cgo_save_gm(SB), R0
 	CMP 	$0, R0 // if in Cgo, we have to save g and m
 	BL.NE	(R0) // this call will clobber R0
 	MOVW	8(FP), R7	// context
@@ -138,7 +138,7 @@ TEXT runtime·gogocallfn(SB), 7, $-4
 	MOVW	4(FP), R1		// fn
 	MOVW	gobuf_g(R3), g
 	MOVW	0(g), R0		// make sure g != nil
-	MOVW	cgo_save_gm(SB), R0
+	MOVW	_cgo_save_gm(SB), R0
 	CMP 	$0, R0 // if in Cgo, we have to save g and m
 	BL.NE	(R0) // this call will clobber R0
 	MOVW	gobuf_sp(R3), SP	// restore SP
@@ -327,7 +327,7 @@ TEXT runtime·cgocallback(SB),7,$12
 // See cgocall.c for more details.
 TEXT	runtime·cgocallback_gofunc(SB),7,$16
 	// Load m and g from thread-local storage.
-	MOVW	cgo_load_gm(SB), R0
+	MOVW	_cgo_load_gm(SB), R0
 	CMP	$0, R0
 	BL.NE	(R0)
 
@@ -425,7 +425,7 @@ TEXT runtime·setmg(SB), 7, $-4
 	MOVW	gg+4(FP), g
 
 	// Save m and g to thread-local storage.
-	MOVW	cgo_save_gm(SB), R0
+	MOVW	_cgo_save_gm(SB), R0
 	CMP	$0, R0
 	BL.NE	(R0)
 

src/pkg/runtime/cgo/gcc_darwin_386.c

@@ -101,8 +101,8 @@ inittls(void)
 		pthread_key_delete(tofree[i]);
 }
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -115,10 +115,10 @@ xinitcgo(G *g)
 	inittls();
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -153,7 +153,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_darwin_amd64.c

@@ -72,7 +72,7 @@ inittls(void)
 }
 
 void
-xinitcgo(G *g)
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -85,10 +85,10 @@ xinitcgo(G *g)
 	inittls();
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -123,7 +123,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_freebsd_386.c

@@ -11,8 +11,8 @@
 
 static void* threadentry(void*);
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -23,10 +23,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -61,7 +61,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_freebsd_amd64.c

@@ -11,8 +11,8 @@
 
 static void* threadentry(void*);
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -23,10 +23,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -62,7 +62,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_freebsd_arm.c

@@ -16,8 +16,8 @@ static void *threadentry(void*);
 // Note: all three functions will clobber R0, and the last
 // two can be called from 5c ABI code.
 void __aeabi_read_tp(void) __attribute__((naked));
-void cgo_tls_set_gm(void) __attribute__((naked));
-void cgo_tls_get_gm(void) __attribute__((naked));
+void x_cgo_save_gm(void) __attribute__((naked));
+void x_cgo_load_gm(void) __attribute__((naked));
 
 void
 __aeabi_read_tp(void)
@@ -32,7 +32,7 @@ __aeabi_read_tp(void)
 
 // g (R10) at 8(TP), m (R9) at 12(TP)
 void
-cgo_tls_get_gm(void)
+x_cgo_load_gm(void)
 {
 	__asm__ __volatile__ (
 		"push {lr}\n\t"
@@ -44,7 +44,7 @@ cgo_tls_get_gm(void)
 }
 
 void
-cgo_tls_set_gm(void)
+x_cgo_save_gm(void)
 {
 	__asm__ __volatile__ (
 		"push {lr}\n\t"
@@ -56,15 +56,15 @@ cgo_tls_set_gm(void)
 }
 
 // both cgo_tls_{get,set}_gm can be called from runtime
-void (*cgo_load_gm)(void) = cgo_tls_get_gm;
-void (*cgo_save_gm)(void) = cgo_tls_set_gm;
+void (*_cgo_load_gm)(void) = x_cgo_load_gm;
+void (*_cgo_save_gm)(void) = x_cgo_save_gm;
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
-	cgo_tls_set_gm(); // save g and m for the initial thread
+	x_cgo_save_gm(); // save g and m for the initial thread
 
 	pthread_attr_init(&attr);
 	pthread_attr_getstacksize(&attr, &size);
@@ -72,10 +72,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	pthread_t p;
@@ -109,7 +109,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096 * 2;

src/pkg/runtime/cgo/gcc_linux_386.c

@@ -9,8 +9,8 @@
 
 static void *threadentry(void*);
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -21,10 +21,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -64,7 +64,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_linux_amd64.c

@@ -10,7 +10,7 @@
 static void* threadentry(void*);
 
 void
-xinitcgo(G* g)
+x_cgo_init(G* g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -21,10 +21,10 @@ xinitcgo(G* g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -59,7 +59,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_linux_arm.c

@@ -16,8 +16,8 @@ static void *threadentry(void*);
 // Note: all three functions will clobber R0, and the last
 // two can be called from 5c ABI code.
 void __aeabi_read_tp(void) __attribute__((naked));
-void cgo_tls_set_gm(void) __attribute__((naked));
-void cgo_tls_get_gm(void) __attribute__((naked));
+void x_cgo_save_gm(void) __attribute__((naked));
+void x_cgo_load_gm(void) __attribute__((naked));
 
 void
 __aeabi_read_tp(void)
@@ -32,7 +32,7 @@ __aeabi_read_tp(void)
 
 // g (R10) at 8(TP), m (R9) at 12(TP)
 void
-cgo_tls_get_gm(void)
+x_cgo_load_gm(void)
 {
 	__asm__ __volatile__ (
 		"push {lr}\n\t"
@@ -44,7 +44,7 @@ cgo_tls_get_gm(void)
 }
 
 void
-cgo_tls_set_gm(void)
+x_cgo_save_gm(void)
 {
 	__asm__ __volatile__ (
 		"push {lr}\n\t"
@@ -56,15 +56,15 @@ cgo_tls_set_gm(void)
 }
 
 // both cgo_tls_{get,set}_gm can be called from runtime
-void (*cgo_load_gm)(void) = cgo_tls_get_gm;
-void (*cgo_save_gm)(void) = cgo_tls_set_gm;
+void (*_cgo_load_gm)(void) = x_cgo_load_gm;
+void (*_cgo_save_gm)(void) = x_cgo_save_gm;
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
-	cgo_tls_set_gm(); // save g and m for the initial thread
+	x_cgo_save_gm(); // save g and m for the initial thread
 
 	pthread_attr_init(&attr);
 	pthread_attr_getstacksize(&attr, &size);
@@ -72,10 +72,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	pthread_t p;
@@ -109,7 +109,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096 * 2;

src/pkg/runtime/cgo/gcc_netbsd_386.c

@@ -10,8 +10,8 @@
 
 static void* threadentry(void*);
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -22,10 +22,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -60,7 +60,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_netbsd_amd64.c

@@ -10,8 +10,8 @@
 
 static void* threadentry(void*);
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -22,10 +22,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -61,7 +61,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_netbsd_arm.c

@@ -18,8 +18,8 @@ static void *threadentry(void*);
 // Note: all three functions will clobber R0, and the last
 // two can be called from 5c ABI code.
 void __aeabi_read_tp(void) __attribute__((naked));
-void cgo_tls_set_gm(void) __attribute__((naked));
-void cgo_tls_get_gm(void) __attribute__((naked));
+void x_cgo_save_gm(void) __attribute__((naked));
+void x_cgo_load_gm(void) __attribute__((naked));
 
 void
 __aeabi_read_tp(void)
@@ -38,7 +38,7 @@ __aeabi_read_tp(void)
 
 // g (R10) at 8(TP), m (R9) at 12(TP)
 void
-cgo_tls_get_gm(void)
+x_cgo_load_gm(void)
 {
 	__asm__ __volatile__ (
 		"push {lr}\n\t"
@@ -50,7 +50,7 @@ cgo_tls_get_gm(void)
 }
 
 void
-cgo_tls_set_gm(void)
+x_cgo_save_gm(void)
 {
 	__asm__ __volatile__ (
 		"push {lr}\n\t"
@@ -62,15 +62,15 @@ cgo_tls_set_gm(void)
 }
 
 // both cgo_tls_{get,set}_gm can be called from runtime
-void (*cgo_load_gm)(void) = cgo_tls_get_gm;
-void (*cgo_save_gm)(void) = cgo_tls_set_gm;
+void (*_cgo_load_gm)(void) = x_cgo_load_gm;
+void (*_cgo_save_gm)(void) = x_cgo_save_gm;
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
-	cgo_tls_set_gm(); // save g and m for the initial thread
+	x_cgo_save_gm(); // save g and m for the initial thread
 
 	pthread_attr_init(&attr);
 	pthread_attr_getstacksize(&attr, &size);
@@ -78,10 +78,10 @@ xinitcgo(G *g)
 	pthread_attr_destroy(&attr);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -117,7 +117,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096 * 2;

src/pkg/runtime/cgo/gcc_openbsd_386.c

@@ -81,8 +81,8 @@ pthread_create(pthread_t *thread, const pthread_attr_t *attr,
 	return sys_pthread_create(thread, attr, thread_start_wrapper, p);
 }
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -109,10 +109,10 @@ xinitcgo(G *g)
 	tcb_fixup(1);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -149,7 +149,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_openbsd_amd64.c

@@ -81,8 +81,8 @@ pthread_create(pthread_t *thread, const pthread_attr_t *attr,
 	return sys_pthread_create(thread, attr, thread_start_wrapper, p);
 }
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	pthread_attr_t attr;
 	size_t size;
@@ -109,10 +109,10 @@ xinitcgo(G *g)
 	tcb_fixup(1);
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	pthread_attr_t attr;
 	sigset_t ign, oset;
@@ -150,7 +150,7 @@ threadentry(void *v)
 	ts.g->stackbase = (uintptr)&ts;
 
 	/*
-	 * libcgo_sys_thread_start set stackguard to stack size;
+	 * _cgo_sys_thread_start set stackguard to stack size;
 	 * change to actual guard pointer.
 	 */
 	ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;

src/pkg/runtime/cgo/gcc_setenv.c

@@ -9,10 +9,10 @@
 #include <stdlib.h>
 
 /* Stub for calling setenv */
-static void
-xlibcgo_setenv(char **arg)
+void
+x_cgo_setenv(char **arg)
 {
 	setenv(arg[0], arg[1], 1);
 }
 
-void (*libcgo_setenv)(char**) = xlibcgo_setenv;
+void (*_cgo_setenv)(char**) = x_cgo_setenv;

src/pkg/runtime/cgo/gcc_util.c

@@ -5,7 +5,7 @@
 #include "libcgo.h"
 
 /* Stub for calling malloc from Go */
-static void
+void
 x_cgo_malloc(void *p)
 {
 	struct a {
@@ -19,7 +19,7 @@ x_cgo_malloc(void *p)
 void (*_cgo_malloc)(void*) = x_cgo_malloc;
 
 /* Stub for calling free from Go */
-static void
+void
 x_cgo_free(void *p)
 {
 	struct a {
@@ -32,8 +32,8 @@ x_cgo_free(void *p)
 void (*_cgo_free)(void*) = x_cgo_free;
 
 /* Stub for creating a new thread */
-static void
-xlibcgo_thread_start(ThreadStart *arg)
+void
+x_cgo_thread_start(ThreadStart *arg)
 {
 	ThreadStart *ts;
 
@@ -45,7 +45,7 @@ xlibcgo_thread_start(ThreadStart *arg)
 	}
 	*ts = *arg;
 
-	libcgo_sys_thread_start(ts);	/* OS-dependent half */
+	_cgo_sys_thread_start(ts);	/* OS-dependent half */
 }
 
-void (*libcgo_thread_start)(ThreadStart*) = xlibcgo_thread_start;
+void (*_cgo_thread_start)(ThreadStart*) = x_cgo_thread_start;

src/pkg/runtime/cgo/gcc_windows_386.c

@@ -14,17 +14,17 @@ static void threadentry(void*);
    The constant is also hardcoded in cmd/ld/pe.c (keep synchronized). */
 #define STACKSIZE (1*1024*1024)
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	int tmp;
 	g->stackguard = (uintptr)&tmp - STACKSIZE + 8*1024;
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	_beginthread(threadentry, 0, ts);
 }

src/pkg/runtime/cgo/gcc_windows_amd64.c

@@ -14,17 +14,17 @@ static void threadentry(void*);
    The constant is also hardcoded in cmd/ld/pe.c (keep synchronized). */
 #define STACKSIZE (2*1024*1024)
 
-static void
-xinitcgo(G *g)
+void
+x_cgo_init(G *g)
 {
 	int tmp;
 	g->stackguard = (uintptr)&tmp - STACKSIZE + 8*1024;
 }
 
-void (*initcgo)(G*) = xinitcgo;
+void (*_cgo_init)(G*) = x_cgo_init;
 
 void
-libcgo_sys_thread_start(ThreadStart *ts)
+_cgo_sys_thread_start(ThreadStart *ts)
 {
 	_beginthread(threadentry, 0, ts);
 }

src/pkg/runtime/cgo/libcgo.h

@@ -26,7 +26,7 @@ struct G
 };
 
 /*
- * Arguments to the libcgo_thread_start call.
+ * Arguments to the _cgo_thread_start call.
  * Also known to ../pkg/runtime/runtime.h.
  */
 typedef struct ThreadStart ThreadStart;
@@ -40,14 +40,14 @@ struct ThreadStart
 /*
  * Called by 5c/6c/8c world.
  * Makes a local copy of the ThreadStart and
- * calls libcgo_sys_thread_start(ts).
+ * calls _cgo_sys_thread_start(ts).
  */
-extern void (*libcgo_thread_start)(ThreadStart *ts);
+extern void (*_cgo_thread_start)(ThreadStart *ts);
 
 /*
  * Creates the new operating system thread (OS, arch dependent).
  */
-void libcgo_sys_thread_start(ThreadStart *ts);
+void _cgo_sys_thread_start(ThreadStart *ts);
 
 /*
  * Call fn in the 6c world.

src/pkg/runtime/cgocall.c

@@ -83,13 +83,13 @@
 // _cgoexp_GoF immediately returns to crosscall2, which restores the
 // callee-save registers for gcc and returns to GoF, which returns to f.
 
-void *initcgo;	/* filled in by dynamic linker when Cgo is available */
+void *_cgo_init;	/* filled in by dynamic linker when Cgo is available */
 static int64 cgosync;  /* represents possible synchronization in C code */
 
 // These two are only used by the architecture where TLS based storage isn't
 // the default for g and m (e.g., ARM)
-void *cgo_load_gm; /* filled in by dynamic linker when Cgo is available */
-void *cgo_save_gm; /* filled in by dynamic linker when Cgo is available */
+void *_cgo_load_gm; /* filled in by dynamic linker when Cgo is available */
+void *_cgo_save_gm; /* filled in by dynamic linker when Cgo is available */
 
 static void unwindm(void);
 

src/pkg/runtime/env_posix.c

@@ -35,7 +35,7 @@ runtime·getenv(int8 *s)
 	return nil;
 }
 
-void (*libcgo_setenv)(byte**);
+void (*_cgo_setenv)(byte**);
 
 // Update the C environment if cgo is loaded.
 // Called from syscall.Setenv.
@@ -44,7 +44,7 @@ syscall·setenv_c(String k, String v)
 {
 	byte *arg[2];
 
-	if(libcgo_setenv == nil)
+	if(_cgo_setenv == nil)
 		return;
 
 	arg[0] = runtime·malloc(k.len + 1);
@@ -55,7 +55,7 @@ syscall·setenv_c(String k, String v)
 	runtime·memmove(arg[1], v.str, v.len);
 	arg[1][v.len] = 0;
 
-	runtime·asmcgocall((void*)libcgo_setenv, arg);
+	runtime·asmcgocall((void*)_cgo_setenv, arg);
 	runtime·free(arg[0]);
 	runtime·free(arg[1]);
 }

src/pkg/runtime/proc.c

@@ -846,10 +846,10 @@ runtime·mstart(void)
 	// is enabled, we must remove our seh here.
 }
 
-// When running with cgo, we call libcgo_thread_start
+// When running with cgo, we call _cgo_thread_start
 // to start threads for us so that we can play nicely with
 // foreign code.
-void (*libcgo_thread_start)(void*);
+void (*_cgo_thread_start)(void*);
 
 typedef struct CgoThreadStart CgoThreadStart;
 struct CgoThreadStart
@@ -1119,12 +1119,12 @@ runtime·newm(void)
 	if(runtime·iscgo) {
 		CgoThreadStart ts;
 
-		if(libcgo_thread_start == nil)
-			runtime·throw("libcgo_thread_start missing");
+		if(_cgo_thread_start == nil)
+			runtime·throw("_cgo_thread_start missing");
 		ts.m = mp;
 		ts.g = mp->g0;
 		ts.fn = runtime·mstart;
-		runtime·asmcgocall(libcgo_thread_start, &ts);
+		runtime·asmcgocall(_cgo_thread_start, &ts);
 	} else {
 		runtime·newosproc(mp, mp->g0, (byte*)mp->g0->stackbase, runtime·mstart);
 	}
@@ -2102,4 +2102,5 @@ runtime·testSchedLocalQueueSteal(void)
 			runtime·throw("bad steal");
 		}
 	}
-}
+}
\ No newline at end of file
+

src/pkg/runtime/sys_freebsd_arm.s

@@ -133,10 +133,10 @@ TEXT runtime·sigaction(SB),7,$-8
 TEXT runtime·sigtramp(SB),7,$24
 	// this might be called in external code context,
 	// where g and m are not set.
-	// first save R0, because cgo_load_gm will clobber it
+	// first save R0, because _cgo_load_gm will clobber it
 	// TODO(adonovan): call runtime·badsignal if m=0, like other platforms?
 	MOVW	R0, 4(R13) // signum
-	MOVW	cgo_load_gm(SB), R0
+	MOVW	_cgo_load_gm(SB), R0
 	CMP 	$0, R0
 	BL.NE	(R0)
 

src/pkg/runtime/sys_linux_arm.s

@@ -280,10 +280,10 @@ TEXT runtime·sigaltstack(SB),7,$0
 TEXT runtime·sigtramp(SB),7,$24
 	// this might be called in external code context,
 	// where g and m are not set.
-	// first save R0, because cgo_load_gm will clobber it
+	// first save R0, because _cgo_load_gm will clobber it
 	// TODO(adonovan): call runtime·badsignal if m=0, like other platforms?
 	MOVW	R0, 4(R13)
-	MOVW	cgo_load_gm(SB), R0
+	MOVW	_cgo_load_gm(SB), R0
 	CMP 	$0, R0
 	BL.NE	(R0)
 

src/pkg/runtime/sys_netbsd_arm.s

@@ -181,10 +181,10 @@ TEXT runtime·sigaction(SB),7,$4
 TEXT runtime·sigtramp(SB),7,$24
 	// this might be called in external code context,
 	// where g and m are not set.
-	// first save R0, because cgo_load_gm will clobber it
+	// first save R0, because _cgo_load_gm will clobber it
 	// TODO(adonovan): call runtime·badsignal if m=0, like other platforms?
 	MOVW	R0, 4(R13) // signum
-	MOVW	cgo_load_gm(SB), R0
+	MOVW	_cgo_load_gm(SB), R0
 	CMP 	$0, R0
 	BL.NE	(R0)