Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/runtime/stubs_amd64.go b/src/runtime/stubs_amd64.go
new file mode 100644
index 0000000..a86a496
--- /dev/null
+++ b/src/runtime/stubs_amd64.go
@@ -0,0 +1,53 @@
+// Copyright 2018 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.
+
+package runtime
+
+import "unsafe"
+
+// Called from compiled code; declared for vet; do NOT call from Go.
+func gcWriteBarrierCX()
+func gcWriteBarrierDX()
+func gcWriteBarrierBX()
+func gcWriteBarrierBP()
+func gcWriteBarrierSI()
+func gcWriteBarrierR8()
+func gcWriteBarrierR9()
+
+// stackcheck checks that SP is in range [g->stack.lo, g->stack.hi).
+func stackcheck()
+
+// Called from assembly only; declared for go vet.
+func settls() // argument in DI
+
+// Retpolines, used by -spectre=ret flag in cmd/asm, cmd/compile.
+func retpolineAX()
+func retpolineCX()
+func retpolineDX()
+func retpolineBX()
+func retpolineBP()
+func retpolineSI()
+func retpolineDI()
+func retpolineR8()
+func retpolineR9()
+func retpolineR10()
+func retpolineR11()
+func retpolineR12()
+func retpolineR13()
+func retpolineR14()
+func retpolineR15()
+
+//go:noescape
+func asmcgocall_no_g(fn, arg unsafe.Pointer)
+
+// Used by reflectcall and the reflect package.
+//
+// Spills/loads arguments in registers to/from an internal/abi.RegArgs
+// respectively. Does not follow the Go ABI.
+func spillArgs()
+func unspillArgs()
+
+// getfp returns the frame pointer register of its caller or 0 if not implemented.
+// TODO: Make this a compiler intrinsic
+func getfp() uintptr