all: make garbage collector configurable

src/runtime/gc.go

@@ -1,38 +0,0 @@
-package runtime
-
-import (
-	"unsafe"
-)
-
-// Ever-incrementing pointer: no memory is freed.
-var heapptr = heapStart
-
-func alloc(size uintptr) unsafe.Pointer {
-	// TODO: this can be optimized by not casting between pointers and ints so
-	// much. And by using platform-native data types (e.g. *uint8 for 8-bit
-	// systems).
-	size = align(size)
-	addr := heapptr
-	heapptr += size
-	for i := uintptr(0); i < uintptr(size); i += 4 {
-		ptr := (*uint32)(unsafe.Pointer(addr + i))
-		*ptr = 0
-	}
-	return unsafe.Pointer(addr)
-}
-
-func free(ptr unsafe.Pointer) {
-	// TODO: use a GC
-}
-
-func GC() {
-	// Unimplemented.
-}
-
-func KeepAlive(x interface{}) {
-	// Unimplemented. Only required with SetFinalizer().
-}
-
-func SetFinalizer(obj interface{}, finalizer interface{}) {
-	// Unimplemented.
-}