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-rw-r--r--src/runtime/os_linux_arm64.go25
1 files changed, 25 insertions, 0 deletions
diff --git a/src/runtime/os_linux_arm64.go b/src/runtime/os_linux_arm64.go
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+++ b/src/runtime/os_linux_arm64.go
@@ -0,0 +1,25 @@
+// Copyright 2015 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.
+
+//go:build arm64
+
+package runtime
+
+import "internal/cpu"
+
+func archauxv(tag, val uintptr) {
+ switch tag {
+ case _AT_HWCAP:
+ cpu.HWCap = uint(val)
+ }
+}
+
+func osArchInit() {}
+
+//go:nosplit
+func cputicks() int64 {
+ // Currently cputicks() is used in blocking profiler and to seed fastrand().
+ // nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
+ return nanotime()
+}