// json output (the trace viewer can hardly handle more).
func splitTrace(parsed *parsedTrace) ([]traceviewer.Range, error) {
	// TODO(mknyszek): Split traces by generation by doing a quick first pass over the
	// trace to identify all the generation boundaries.
	s, c := traceviewer.SplittingTraceConsumer(100 << 20) // 100 MiB

	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [12]int8
	raw    RawSockaddrDatalink
}

// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
	const siz = unsafe.Sizeof(mib[0])

	// NOTE(rsc): It seems strange to set the buffer to have
	// size CTL_MAXNAME+2 but use only CTL_MAXNAME
	// as the size. I don't know why the +2 is here, but the

}

//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_read
//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_lseek
//sys	getcwd(buf []byte) (n int, err error)
//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error)
//sysnb fork() (pid int, err error)
//sysnb execve(path *byte, argv **byte, envp **byte) (err error)
//sysnb exit(res int) (err error)

// setting. GOMEMLIMIT is a numeric value in bytes with an optional
// unit suffix. The supported suffixes include B, KiB, MiB, GiB, and
// TiB. These suffixes represent quantities of bytes as defined by
// the IEC 80000-13 standard. That is, they are based on powers of
// two: KiB means 2^10 bytes, MiB means 2^20 bytes, and so on.
//
// SetMemoryLimit returns the previously set memory limit.

//
//	<chunk-size-as-hex> + ";chunk-signature=" + <signature-as-hex> + "\r\n" + <payload> + "\r\n"
//
// First, we read the chunk size but fail if it is larger
// than 16 MiB. We must not accept arbitrary large chunks.
// One 16 MiB is a reasonable max limit.
//
// Then we read the signature and payload data. We compute the SHA256 checksum
// of the payload and verify that it matches the expected signature value.
//

	KeepAlive(new)
	KeepAlive(old)
}
func setitimer_trampoline()

//go:nosplit
//go:cgo_unsafe_args
func sysctl(mib *uint32, miblen uint32, oldp *byte, oldlenp *uintptr, newp *byte, newlen uintptr) int32 {
	ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(sysctl_trampoline)), unsafe.Pointer(&mib))
	KeepAlive(mib)
	KeepAlive(oldp)
	KeepAlive(oldlenp)
	KeepAlive(newp)
	return ret
}
func sysctl_trampoline()

    calls and that can receive data faster than they can process it. Previously, OkHttp limited
    HTTP/2 to 16 MiB of unacknowledged data per connection. With this fix there is a limit of 16 MiB
    of unacknowledged data per stream and no per-connection limit.

 *  Fix: Don't operate on a connection after it's been returned to the pool. This race occurred

			s := dumpTraceToText(t, tb)
			if onOldBuilder && len(s) > 1<<20+512<<10 {
				// The old build infrastructure truncates logs at ~2 MiB.
				// Let's assume we're the only failure and give ourselves
				// up to 1.5 MiB to dump the trace.
				//
				// TODO(mknyszek): Remove this when we've migrated off of
				// the old infrastructure.
				t.Logf("text trace too large to dump (%d bytes)", len(s))

func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) {
	var _p0 unsafe.Pointer
	if len(mib) > 0 {
		_p0 = unsafe.Pointer(&mib[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}

	// word or two) and stacks at the profiler's maximum length of 64 frames,
	// that capacity can support 1900 samples or 19 thread-seconds at a 100 Hz
	// sample rate, at a cost of 1 MiB.
	profBufWordCount = 1 << 17
	// profBufTagCount is the size of the CPU profile buffer's storage for the
	// goroutine tags associated with each sample. A capacity of 1<<14 means