Implement execute breakpoints

src/gdbserver.rs

@@ -307,6 +307,22 @@ impl GdbConnection {
             } else {
                 self.response()
             }
+        } else if req.match_str("Z0,") {
+            if let Some(address) = req.match_hex() {
+                self.client
+                    .send_command(EmulatorCommand::AddBreakpoint(self.sim_id, address));
+                self.response().write_str("OK")
+            } else {
+                self.response()
+            }
+        } else if req.match_str("z0,") {
+            if let Some(address) = req.match_hex() {
+                self.client
+                    .send_command(EmulatorCommand::RemoveBreakpoint(self.sim_id, address));
+                self.response().write_str("OK")
+            } else {
+                self.response()
+            }
         } else {
             // unrecognized command
             self.response()
@@ -331,7 +347,8 @@ impl Drop for GdbConnection {
 
 fn debug_stop_reason_string(reason: Option<DebugStopReason>) -> &'static str {
     match reason {
-        Some(DebugStopReason::Trapped) => "T05;thread:p1.t1;threads:p1.t1;reason:trap;",
+        Some(DebugStopReason::Breakpoint) => "T05;thread:p1.t1;threads;p1.t1;reason:breakpoint",
+        Some(DebugStopReason::Trapped) => "T05;swbreak;thread:p1.t1;threads:p1.t1;reason:trap;",
         None => "T00;thread:p1.t1;threads:p1.t1;",
     }
 }