// Copyright 2023 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.

// Tests syscall P stealing.
//
// Specifically, it tests a scenerio wherein, without a
// P sequence number of GoSyscallBegin, the syscall that
// a ProcSteal applies to is ambiguous. This only happens in
// practice when the events aren't already properly ordered

// license that can be found in the LICENSE file.

//go:build solaris

package lif

import (
	"syscall"
	"unsafe"
)

//go:cgo_import_dynamic libc_ioctl ioctl "libc.so"

//go:linkname procIoctl libc_ioctl

var procIoctl uintptr

func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno)

func ioctl(s, ioc uintptr, arg unsafe.Pointer) error {

	mkerrors="$mkerrors -m64"
	mksyscall="go run mksyscall.go -openbsd -libc"
	mksysctl="go run mksysctl_openbsd.go"
	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
	;;
openbsd_arm)
	mkasm="go run mkasm.go"
	mkerrors="$mkerrors"
	mksyscall="go run mksyscall.go -l32 -openbsd -arm -libc"
	mksysctl="go run mksysctl_openbsd.go"
	# Let the type of C char be signed for making the bare syscall
	# API consistent across platforms.

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Tests a G being created from within a syscall.
//
// Specifically, it tests a scenerio wherein a C
// thread is calling into Go, creating a goroutine in
// a syscall (in the tracer's model). The system is free
// to reuse thread IDs, so first a thread ID is used to
// call into Go, and then is used for a Go-created thread.
//

	MOVD	$libpthread_sigthreadmask(SB), R12
	CSYSCALL()
	RET

// Runs on OS stack, called from runtime·usleep.
TEXT runtime·usleep1(SB),NOSPLIT,$0-4
	MOVW	us+0(FP), R3
	MOVD	$libc_usleep(SB), R12
	CSYSCALL()
	RET

// Runs on OS stack, called from runtime·exit.
TEXT runtime·exit1(SB),NOSPLIT,$0-4
	MOVW	code+0(FP), R3
	MOVD	$libc_exit(SB), R12
	CSYSCALL()
	RET

// mksysnum_plan9.sh /media/sys/src/libc/9syscall/sys.h
// Code generated by the command above; DO NOT EDIT.

package syscall

const (
	SYS_SYSR1       = 0
	SYS_BIND        = 2
	SYS_CHDIR       = 3
	SYS_CLOSE       = 4
	SYS_DUP         = 5
	SYS_ALARM       = 6
	SYS_EXEC        = 7
	SYS_EXITS       = 8
	SYS_FAUTH       = 10
	SYS_SEGBRK      = 12
	SYS_OPEN        = 14
	SYS_OSEEK       = 16
	SYS_SLEEP       = 17

	}
	if from == trace.GoSyscall && to != trace.GoRunning {
		// Exiting blocked syscall.
		gs.syscallEnd(ev.Time(), true, ctx)
		gs.blockedSyscallEnd(ev.Time(), ev.Stack(), ctx)
	} else if from == trace.GoSyscall {
		// Check if we're exiting a syscall in a non-blocking way.
		gs.syscallEnd(ev.Time(), false, ctx)
	}

	// Handle syscalls.
	if to == trace.GoSyscall {
		start := ev.Time()

	}
	if from == trace.GoSyscall {
		// Exiting syscall.
		gs.syscallEnd(ev.Time(), to != trace.GoRunning, ctx)
	}

	// Handle syscalls.
	if to == trace.GoSyscall {
		start := ev.Time()
		if from == trace.GoUndetermined {
			// Back-date the event to the start of the trace.
			start = ctx.startTime
		}
		// Write down that we've entered a syscall. Note: we might have no P here

Carlos Amedee <******@****.***> 1715265901 -0400

// mksyscall.pl -l32 -plan9 -tags plan9,amd64 syscall_plan9.go
// Code generated by the command above; DO NOT EDIT.

//go:build plan9 && amd64

package syscall

import "unsafe"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func fd2path(fd int, buf []byte) (err error) {
	var _p0 unsafe.Pointer
	if len(buf) > 0 {
		_p0 = unsafe.Pointer(&buf[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}