runtime: more cleanups

Move timenow thunk into time.s
Move declarations for generic c/asm services into stubs.go

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://codereview.appspot.com/137360043

1 files changed, 7 insertions, 0 deletions

diff --git a/src/runtime/stubs.go b/src/runtime/stubs.go
index f3af34a58..8bae98c73 100644
--- a/src/runtime/stubs.go
+++ b/src/runtime/stubs.go
@@ -28,6 +28,7 @@ func getg() *g
 func acquirem() *m
 func releasem(mp *m)
 func gomcache() *mcache
+func readgstatus(*g) uint32 // proc.c
 
 // mcall switches from the g to the g0 stack and invokes fn(g),
 // where g is the goroutine that made the call.
@@ -122,6 +123,9 @@ func unlockOSThread()
 var hashLoad = loadFactor
 
 // in asm_*.s
+func fastrand1() uint32
+
+// in asm_*.s
 //go:noescape
 func memeq(a, b unsafe.Pointer, size uintptr) bool
 
@@ -229,3 +233,6 @@ func rt0_go()
 // to deferreturn.
 // in asm_*.s
 func return0()
+
+// thunk to call time.now.
+func timenow() (sec int64, nsec int32)