// stack, they do cause the next argument to be aligned.
		// So just do that here, but don't bother actually
		// generating a new ABI step for it (there's nothing to
		// actually copy).
		//
		// We cannot handle this in the recursive case of
		// regAssign because zero-sized *fields* of a
		// non-zero-sized struct do not cause it to be
		// stack-assigned. So we need a special case here
		// at the top.

	"runtime"
	"syscall"
	"time"
)

func setKeepAliveIdle(fd *netFD, d time.Duration) error {
	if d == 0 {
		d = defaultTCPKeepAliveIdle
	} else if d < 0 {
		return nil
	}

	// The kernel expects seconds so round to next highest second.
	secs := int(roundDurationUp(d, time.Second))
	err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, secs)
	runtime.KeepAlive(fd)
	return wrapSyscallError("setsockopt", err)
}

//
// Note that -Wl,foo means split foo on commas and pass to
// the linker, so that -Wl,-foo,bar means pass -foo bar to
// the linker. Similarly -Wa,foo for the assembler and so on.
// If any of these are permitted, the wildcard portion must
// disallow commas.
//
// Note also that GNU binutils accept any argument @foo
// as meaning "read more flags from the file foo", so we must
// guard against any command-line argument beginning with @,

#
#   Important for patching:
#
#   (2) This script targets any POSIX shell, so it avoids extensions provided
#       by Bash, Ksh, etc; in particular arrays are avoided.
#
#       The "traditional" practice of packing multiple parameters into a
#       space-separated string is a well documented source of bugs and security
#       problems, so this is (mostly) avoided, by progressively accumulating

	//go:cgo_dynamic_linker "/lib64/ld-linux-x86-64.so.2"
	//go:cgo_import_dynamic puts puts#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic __libc_start_main __libc_start_main#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic stdout stdout#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic fflush fflush#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic _ _ "libpthread.so.0"
	//go:cgo_import_dynamic _ _ "libc.so.6"

defined in the docs for ErrorCode.

HTML templates treat data values as plain text which should be encoded so they
can be safely embedded in an HTML document. The escaping is contextual, so
actions can appear within JavaScript, CSS, and URI contexts.

The security model used by this package assumes that template authors are
trusted, while Execute's data parameter is not. More details are
provided below.

Example

			// while executing Go code but received while
			// executing non-Go code.
			// We got past sigfwdgo, so we know that there is
			// no non-Go signal handler for sigPreempt.
			// The default behavior for sigPreempt is to ignore
			// the signal, so badsignal will be a no-op anyway.
			if GOOS == "darwin" || GOOS == "ios" {
				pendingPreemptSignals.Add(-1)
			}
			return
		}

			// unavailability in the way that a network filesystem might.
			//
			// Go programs may use ModeIrregular to filter out unusual files (such as
			// raw device files on Linux, POSIX FIFO special files, and so on), so
			// to avoid files changing unpredictably from regular to irregular we will
			// consider DEDUP files to be close enough to regular to treat as such.
		default:
			m |= ModeIrregular
		}
	}
	return
}

	if cheaprand()&uint32(oldC.Mask) != 0 {
		// As cache gets larger, choose to update it less often
		// so we can amortize the cost of building a new cache.
		return tab
	}

	// Make a new cache.
	newC := buildTypeAssertCache(oldC, t, tab)

	// Update cache. Use compare-and-swap so if multiple threads
	// are fighting to update the cache, at least one of their
	// updates will stick.

	//   gp._defer = d
	// But without write barriers. The first three are writes to
	// the stack so they don't need a write barrier, and furthermore
	// are to uninitialized memory, so they must not use a write barrier.
	// The fourth write does not require a write barrier because we
	// explicitly mark all the defer structures, so we don't need to
	// keep track of pointers to them with a write barrier.