From 928bda4f4a88efe2e53f3607e8d2ad0796b449c0 Mon Sep 17 00:00:00 2001 From: Joel Sing Date: Sat, 16 Jan 2021 04:38:50 +1100 Subject: runtime: convert openbsd/amd64 locking to libc Switch openbsd/amd64 to locking via libc, rather than performing direct system calls. Update #36435 Change-Id: I5e92bd70ce557b78ff385577088a9775cc468ea9 Reviewed-on: https://go-review.googlesource.com/c/go/+/270378 Trust: Joel Sing Run-TryBot: Joel Sing TryBot-Result: Go Bot Reviewed-by: Cherry Zhang --- src/runtime/sys_openbsd1.go | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/runtime/sys_openbsd1.go (limited to 'src/runtime/sys_openbsd1.go') diff --git a/src/runtime/sys_openbsd1.go b/src/runtime/sys_openbsd1.go new file mode 100644 index 0000000000..a201a16c53 --- /dev/null +++ b/src/runtime/sys_openbsd1.go @@ -0,0 +1,34 @@ +// Copyright 2020 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. + +// +build openbsd,amd64 + +package runtime + +import "unsafe" + +//go:nosplit +//go:cgo_unsafe_args +func thrsleep(ident uintptr, clock_id int32, tsp *timespec, lock uintptr, abort *uint32) int32 { + return libcCall(unsafe.Pointer(funcPC(thrsleep_trampoline)), unsafe.Pointer(&ident)) +} +func thrsleep_trampoline() + +//go:nosplit +//go:cgo_unsafe_args +func thrwakeup(ident uintptr, n int32) int32 { + return libcCall(unsafe.Pointer(funcPC(thrwakeup_trampoline)), unsafe.Pointer(&ident)) +} +func thrwakeup_trampoline() + +func osyield() { + libcCall(unsafe.Pointer(funcPC(sched_yield_trampoline)), unsafe.Pointer(nil)) +} +func sched_yield_trampoline() + +//go:cgo_import_dynamic libc_thrsleep __thrsleep "libc.so" +//go:cgo_import_dynamic libc_thrwakeup __thrwakeup "libc.so" +//go:cgo_import_dynamic libc_sched_yield sched_yield "libc.so" + +//go:cgo_import_dynamic _ _ "libc.so" -- cgit v1.2.3-54-g00ecf