1 files changed, 165 insertions, 0 deletions
diff --git a/src/runtime/export_test.go b/src/runtime/export_test.go
new file mode 100644
index 000000000..be352557f
--- /dev/null
+++ b/src/runtime/export_test.go
@@ -0,0 +1,165 @@
+// Copyright 2010 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Export guts for testing.
+
+package runtime
+
+import "unsafe"
+
+var Fadd64 = fadd64
+var Fsub64 = fsub64
+var Fmul64 = fmul64
+var Fdiv64 = fdiv64
+var F64to32 = f64to32
+var F32to64 = f32to64
+var Fcmp64 = fcmp64
+var Fintto64 = fintto64
+var F64toint = f64toint
+
+// in asm_*.s
+func stackguard() (sp, limit uintptr)
+
+var Entersyscall = entersyscall
+var Exitsyscall = exitsyscall
+var LockedOSThread = lockedOSThread
+
+type LFNode struct {
+	Next    *LFNode
+	Pushcnt uintptr
+}
+
+func lfstackpush_m()
+func lfstackpop_m()
+
+func LFStackPush(head *uint64, node *LFNode) {
+	mp := acquirem()
+	mp.ptrarg[0] = unsafe.Pointer(head)
+	mp.ptrarg[1] = unsafe.Pointer(node)
+	onM(lfstackpush_m)
+	releasem(mp)
+}
+
+func LFStackPop(head *uint64) *LFNode {
+	mp := acquirem()
+	mp.ptrarg[0] = unsafe.Pointer(head)
+	onM(lfstackpop_m)
+	node := (*LFNode)(unsafe.Pointer(mp.ptrarg[0]))
+	mp.ptrarg[0] = nil
+	releasem(mp)
+	return node
+}
+
+type ParFor struct {
+	body    *byte
+	done    uint32
+	Nthr    uint32
+	nthrmax uint32
+	thrseq  uint32
+	Cnt     uint32
+	Ctx     *byte
+	wait    bool
+}
+
+func newparfor_m()
+func parforsetup_m()
+func parfordo_m()
+func parforiters_m()
+
+func NewParFor(nthrmax uint32) *ParFor {
+	mp := acquirem()
+	mp.scalararg[0] = uintptr(nthrmax)
+	onM(newparfor_m)
+	desc := (*ParFor)(mp.ptrarg[0])
+	mp.ptrarg[0] = nil
+	releasem(mp)
+	return desc
+}
+
+func ParForSetup(desc *ParFor, nthr, n uint32, ctx *byte, wait bool, body func(*ParFor, uint32)) {
+	mp := acquirem()
+	mp.ptrarg[0] = unsafe.Pointer(desc)
+	mp.ptrarg[1] = unsafe.Pointer(ctx)
+	mp.ptrarg[2] = unsafe.Pointer(funcPC(body)) // TODO(rsc): Should be a scalar.
+	mp.scalararg[0] = uintptr(nthr)
+	mp.scalararg[1] = uintptr(n)
+	mp.scalararg[2] = 0
+	if wait {
+		mp.scalararg[2] = 1
+	}
+	onM(parforsetup_m)
+	releasem(mp)
+}
+
+func ParForDo(desc *ParFor) {
+	mp := acquirem()
+	mp.ptrarg[0] = unsafe.Pointer(desc)
+	onM(parfordo_m)
+	releasem(mp)
+}
+
+func ParForIters(desc *ParFor, tid uint32) (uint32, uint32) {
+	mp := acquirem()
+	mp.ptrarg[0] = unsafe.Pointer(desc)
+	mp.scalararg[0] = uintptr(tid)
+	onM(parforiters_m)
+	begin := uint32(mp.scalararg[0])
+	end := uint32(mp.scalararg[1])
+	releasem(mp)
+	return begin, end
+}
+
+// in mgc0.c
+//go:noescape
+func getgcmask(data unsafe.Pointer, typ *_type, array **byte, len *uint)
+
+func GCMask(x interface{}) (ret []byte) {
+	e := (*eface)(unsafe.Pointer(&x))
+	s := (*slice)(unsafe.Pointer(&ret))
+	onM(func() {
+		getgcmask(e.data, e._type, &s.array, &s.len)
+		s.cap = s.len
+	})
+	return
+}
+
+func testSchedLocalQueue()
+func testSchedLocalQueueSteal()
+func RunSchedLocalQueueTest() {
+	onM(testSchedLocalQueue)
+}
+func RunSchedLocalQueueStealTest() {
+	onM(testSchedLocalQueueSteal)
+}
+
+var HaveGoodHash = haveGoodHash
+var StringHash = stringHash
+var BytesHash = bytesHash
+var Int32Hash = int32Hash
+var Int64Hash = int64Hash
+var EfaceHash = efaceHash
+var IfaceHash = ifaceHash
+var MemclrBytes = memclrBytes
+
+var HashLoad = &hashLoad
+
+// For testing.
+func GogoBytes() int32 {
+	return _RuntimeGogoBytes
+}
+
+// in string.c
+//go:noescape
+func gostringw(w *uint16) string
+
+// entry point for testing
+func GostringW(w []uint16) (s string) {
+	onM(func() {
+		s = gostringw(&w[0])
+	})
+	return
+}
+
+var Gostringnocopy = gostringnocopy
+var Maxstring = &maxstring