Ensure hardware breakpoints are cleared upon exit

client/cli/cli.go

@@ -2,13 +2,14 @@ package cli
 
 import (
 	"fmt"
-	sys "golang.org/x/sys/unix"
 	"io"
 	"os"
 	"os/exec"
 	"os/signal"
 	"strings"
 
+	sys "golang.org/x/sys/unix"
+
 	"github.com/derekparker/delve/command"
 	"github.com/derekparker/delve/goreadline"
 	"github.com/derekparker/delve/proctl"
@@ -98,6 +99,15 @@ func handleExit(dbp *proctl.DebuggedProcess, status int) {
 	}
 	answer := strings.TrimSuffix(*answerp, "\n")
 
+	for _, bp := range dbp.HWBreakPoints {
+		if bp == nil {
+			continue
+		}
+		if _, err := dbp.Clear(bp.Addr); err != nil {
+			fmt.Printf("Can't clear breakpoint @%x: %s\n", bp.Addr, err)
+		}
+	}
+
 	for pc := range dbp.BreakPoints {
 		if _, err := dbp.Clear(pc); err != nil {
 			fmt.Printf("Can't clear breakpoint @%x: %s\n", pc, err)