ctxt.IsAsm = true
	ctxt.Pkgpath = *flags.Importpath
	switch *flags.Spectre {
	default:
		log.Printf("unknown setting -spectre=%s", *flags.Spectre)
		os.Exit(2)
	case "":
		// nothing
	case "index":
		// known to compiler; ignore here so people can use
		// the same list with -gcflags=-spectre=LIST and -asmflags=-spectrre=LIST
	case "all", "ret":
		ctxt.Retpoline = true
	}

Go 1.22 disabled
[`ConnectionState.ExportKeyingMaterial`](/pkg/crypto/tls/#ConnectionState.ExportKeyingMaterial)
when the connection supports neither TLS 1.3 nor Extended Master Secret
(implemented in Go 1.21). It can be reenabled with the [`tlsunsafeekm`
setting](/pkg/crypto/tls/#ConnectionState.ExportKeyingMaterial).

Go 1.22 changed how the runtime interacts with transparent huge pages on Linux.

pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_SCA = 24583
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_SCA ideal-int
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_SECTRA = 34523
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_SECTRA ideal-int
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_SECUREDATA = 34669
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_SECUREDATA ideal-int

		"../foo",
		"/foo",
		"a/b/../../../c",
	} {
		var buf bytes.Buffer
		tw := NewWriter(&buf)
		tw.WriteHeader(&Header{
			Name: path,
		})
		const securePath = "secure"
		tw.WriteHeader(&Header{
			Name: securePath,
		})
		tw.Close()

		tr := NewReader(&buf)
		h, err := tr.Next()
		if err != ErrInsecurePath {

pkg debug/macho, type Nlist32 struct, Sect uint8
pkg debug/macho, type Nlist32 struct, Type uint8
pkg debug/macho, type Nlist32 struct, Value uint32
pkg debug/macho, type Nlist64 struct
pkg debug/macho, type Nlist64 struct, Desc uint16
pkg debug/macho, type Nlist64 struct, Name uint32
pkg debug/macho, type Nlist64 struct, Sect uint8
pkg debug/macho, type Nlist64 struct, Type uint8

	SymABIs    = flag.Bool("gensymabis", false, "write symbol ABI information to output file, don't assemble")
	Importpath = flag.String("p", obj.UnlinkablePkg, "set expected package import to path")
	Spectre    = flag.String("spectre", "", "enable spectre mitigations in `list` (all, ret)")
)

var DebugFlags struct {
	MayMoreStack string `help:"call named function before all stack growth checks"`

pkg syscall (netbsd-386), const ETHERTYPE_RETIX = 33010
pkg syscall (netbsd-386), const ETHERTYPE_REVARP = 32821
pkg syscall (netbsd-386), const ETHERTYPE_SCA = 24583
pkg syscall (netbsd-386), const ETHERTYPE_SECTRA = 34523
pkg syscall (netbsd-386), const ETHERTYPE_SECUREDATA = 34669
pkg syscall (netbsd-386), const ETHERTYPE_SGITW = 33150
pkg syscall (netbsd-386), const ETHERTYPE_SG_BOUNCE = 32790

	-o file
		Write output to file. The default is foo.o for /a/b/c/foo.s.
	-p pkgpath
		Set expected package import to pkgpath.
	-shared
		Generate code that can be linked into a shared library.
	-spectre list
		Enable spectre mitigations in list (all, ret).
	-trimpath prefix
		Remove prefix from recorded source file paths.
	-v
		Print debug output.

Input language:

pkg syscall (netbsd-386), const ETHERTYPE_RETIX ideal-int
pkg syscall (netbsd-386), const ETHERTYPE_REVARP ideal-int
pkg syscall (netbsd-386), const ETHERTYPE_SCA ideal-int
pkg syscall (netbsd-386), const ETHERTYPE_SECTRA ideal-int
pkg syscall (netbsd-386), const ETHERTYPE_SECUREDATA ideal-int
pkg syscall (netbsd-386), const ETHERTYPE_SGITW ideal-int
pkg syscall (netbsd-386), const ETHERTYPE_SG_BOUNCE ideal-int