[debug] check triggers exist in icount/itrigger/etrigger test

debug/gdbserver.py

@@ -2177,6 +2177,11 @@ def test(self):
         assertEqual(before, after)
 
 class EtriggerTest(DebugTest):
+    # TODO: There should be a check that a exception trigger is really not
+    # supported if it is marked as unsupported.
+    def early_applicable(self):
+        return self.target.support_etrigger
+
     def setup(self):
         DebugTest.setup(self)
         self.gdb.b("main:start")
@@ -2208,6 +2213,11 @@ def test(self):
 class IcountTest(DebugTest):
     compile_args = ("programs/infinite_loop.S", )
 
+    # TODO: There should be a check that an instruction count trigger is
+    # really not supported if it is marked as unsupported.
+    def early_applicable(self):
+        return self.target.support_icount
+
     def setup(self):
         DebugTest.setup(self)
         self.gdb.b("main")
@@ -2239,8 +2249,10 @@ def test(self):
 class ItriggerTest(GdbSingleHartTest):
     compile_args = ("programs/interrupt.c",)
 
+    # TODO: There should be a check that a interrupt trigger is really not
+    # supported if it is marked as unsupported.
     def early_applicable(self):
-        return self.target.supports_clint_mtime
+        return self.target.supports_clint_mtime and self.target.support_itrigger
 
     def setup(self):
         self.gdb.load()

debug/targets.py

@@ -148,6 +148,15 @@ class Target:
     # Support set_pmp_deny to create invalid addresses.
     support_set_pmp_deny = False
 
+    # Supports Instruction count trigger
+    support_icount = True
+
+    # Supports interrupt trigger
+    support_itrigger = True
+
+    # Supports exception trigger
+    support_etrigger = True
+
     # Internal variables:
     directory = None
     temporary_files = []