Make it actually compile

Documentation/usage/dlv_backend.md

@@ -8,7 +8,7 @@ Help about the --backend flag.
 The --backend flag specifies which backend should be used, possible values
 are:
 
-	default		Uses lldb on macOS (amd64), native everywhere else.
+	default		Uses lldb on macOS, native everywhere else.
 	native		Native backend.
 	lldb		Uses lldb-server or debugserver.
 	rr		Uses mozilla rr (https://github.com/mozilla/rr).

_scripts/make.go

@@ -216,7 +216,7 @@ func installedExecutablePath() string {
 // i.e. cgo enabled and the legacy SDK headers:
 // https://forums.developer.apple.com/thread/104296
 func canMacnative() bool {
-	if !(runtime.GOOS == "darwin" && runtime.GOARCH == "amd64") {
+	if !(runtime.GOOS == "darwin") {
 		return false
 	}
 	if strings.TrimSpace(getoutput("go", "env", "CGO_ENABLED")) != "1" {

pkg/proc/native/registers_darwin_arm64.go

@@ -8,6 +8,8 @@ import (
 	"errors"
 	"fmt"
 
+	"github.com/go-delve/delve/pkg/dwarf/op"
+	"github.com/go-delve/delve/pkg/dwarf/regnum"
 	"github.com/go-delve/delve/pkg/proc"
 	"golang.org/x/arch/arm64/arm64asm"
 )
@@ -134,14 +136,22 @@ func (r *Regs) GAddr() (uint64, bool) {
 }
 
 // SetPC sets the RIP register to the value specified by `pc`.
-func (thread *nativeThread) SetPC(pc uint64) error {
+func (thread *nativeThread) setPC(pc uint64) error {
 	kret := C.set_pc(thread.os.threadAct, C.uint64_t(pc))
 	if kret != C.KERN_SUCCESS {
 		return fmt.Errorf("could not set pc")
 	}
 	return nil
 }
 
+// SetReg changes the value of the specified register.
+func (thread *nativeThread) SetReg(regNum uint64, reg *op.DwarfRegister) error {
+	if regNum != regnum.ARM64_PC {
+		return fmt.Errorf("changing register %d not implemented", regNum)
+	}
+	return thread.setPC(reg.Uint64Val)
+}
+
 // SetSP sets the RSP register to the value specified by `pc`.
 func (thread *nativeThread) SetSP(sp uint64) error {
 	return errors.New("not implemented")