runtime: convert interface routines from C to Go.
LGTM=dvyukov
R=golang-codereviews, dave, bradfitz, dvyukov, khr
CC=golang-codereviews
https://golang.org/cl/98510044
diff --git a/src/pkg/runtime/stubs.go b/src/pkg/runtime/stubs.go
index fee18f0..77eece9 100644
--- a/src/pkg/runtime/stubs.go
+++ b/src/pkg/runtime/stubs.go
@@ -72,6 +72,7 @@
// memclr clears n bytes starting at ptr.
// in memclr_*.s
+//go:noescape
func memclr(ptr unsafe.Pointer, n uintptr)
func racemalloc(p unsafe.Pointer, size uintptr)
@@ -79,6 +80,7 @@
// memmove copies n bytes from "from" to "to".
// in memmove_*.s
+//go:noescape
func memmove(to unsafe.Pointer, from unsafe.Pointer, n uintptr)
// in asm_*.s
@@ -124,8 +126,9 @@
//go:noescape
func gomemeq(a, b unsafe.Pointer, size uintptr) bool
-// Code pointer for the nohash algorithm. Used for producing better error messages.
+// Code pointers for the nohash/noequal algorithms. Used for producing better error messages.
var nohashcode uintptr
+var noequalcode uintptr
// Go version of runtime.throw.
// in panic.c
@@ -159,3 +162,7 @@
x := uintptr(p)
return unsafe.Pointer(x ^ 0)
}
+
+// gopersistentalloc allocates a permanent (not garbage collected)
+// memory region of size n. Use wisely!
+func gopersistentalloc(n uintptr) unsafe.Pointer
