From 73df946d56c74384511a194dd01dbe099584fd1a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:14:23 +0200 Subject: Adding upstream version 1.16.10. Signed-off-by: Daniel Baumann --- src/runtime/os_freebsd_arm.go | 48 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/runtime/os_freebsd_arm.go (limited to 'src/runtime/os_freebsd_arm.go') diff --git a/src/runtime/os_freebsd_arm.go b/src/runtime/os_freebsd_arm.go new file mode 100644 index 0000000..3feaa5e --- /dev/null +++ b/src/runtime/os_freebsd_arm.go @@ -0,0 +1,48 @@ +// Copyright 2012 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 "internal/cpu" + +const ( + _HWCAP_VFP = 1 << 6 + _HWCAP_VFPv3 = 1 << 13 +) + +func checkgoarm() { + if goarm > 5 && cpu.HWCap&_HWCAP_VFP == 0 { + print("runtime: this CPU has no floating point hardware, so it cannot run\n") + print("this GOARM=", goarm, " binary. Recompile using GOARM=5.\n") + exit(1) + } + if goarm > 6 && cpu.HWCap&_HWCAP_VFPv3 == 0 { + print("runtime: this CPU has no VFPv3 floating point hardware, so it cannot run\n") + print("this GOARM=", goarm, " binary. Recompile using GOARM=5 or GOARM=6.\n") + exit(1) + } + + // osinit not called yet, so ncpu not set: must use getncpu directly. + if getncpu() > 1 && goarm < 7 { + print("runtime: this system has multiple CPUs and must use\n") + print("atomic synchronization instructions. Recompile using GOARM=7.\n") + exit(1) + } +} + +func archauxv(tag, val uintptr) { + switch tag { + case _AT_HWCAP: + cpu.HWCap = uint(val) + case _AT_HWCAP2: + cpu.HWCap2 = uint(val) + } +} + +//go:nosplit +func cputicks() int64 { + // Currently cputicks() is used in blocking profiler and to seed runtime·fastrand(). + // runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler. + return nanotime() +} -- cgit v1.2.3