[lldb] Fix exception breakpoint not being resolved when set on dummy target

Summary: Ensure that breakpoint ivar is properly set in exception breakpoint resolver so that exception breakpoints set on dummy targets are resolved once real targets are created and run.

Reviewers: jingham

Reviewed By: jingham

Subscribers: teemperor, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D69880

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/cpp_exception/TestCPPExceptionBreakpoint.py b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/cpp_exception/TestCPPExceptionBreakpoint.py
index e8a1b81..839a470 100644 (file)
--- a/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/cpp_exception/TestCPPExceptionBreakpoint.py
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/breakpoint/cpp_exception/TestCPPExceptionBreakpoint.py
@@ -24,6 +24,14 @@ class TestCPPExceptionBreakpoint (TestBase):
         self.build()
         self.do_cpp_exception_bkpt()
 
+    @add_test_categories(['pyapi'])
+    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24538")
+    @expectedFailureNetBSD
+    def test_dummy_target_cpp_exception_breakpoint(self):
+        """Test setting and hitting the C++ exception breakpoint from dummy target."""
+        self.build()
+        self.do_dummy_target_cpp_exception_bkpt()
+
     def setUp(self):
         TestBase.setUp(self)
         self.main_source = "main.c"
@@ -50,3 +58,30 @@ class TestCPPExceptionBreakpoint (TestBase):
             process, exception_bkpt)
         self.assertTrue(len(thread_list) == 1,
                         "One thread stopped at the exception breakpoint.")
+
+    def do_dummy_target_cpp_exception_bkpt(self):
+        exe = self.getBuildArtifact("a.out")
+        error = lldb.SBError()
+
+        dummy_exception_bkpt = self.dbg.GetDummyTarget().BreakpointCreateForException(
+            lldb.eLanguageTypeC_plus_plus, False, True)
+        self.assertTrue(
+            dummy_exception_bkpt.IsValid(),
+            "Created exception breakpoint in dummy target.")
+
+        self.target = self.dbg.CreateTarget(exe)
+        self.assertTrue(self.target, VALID_TARGET)
+
+        exception_bkpt = self.target.GetBreakpointAtIndex(0)
+        self.assertTrue(
+            exception_bkpt.IsValid(),
+            "Target primed with exception breakpoint from dummy target.")
+
+        process = self.target.LaunchSimple(
+            None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        thread_list = lldbutil.get_threads_stopped_at_breakpoint(
+           process, exception_bkpt)
+        self.assertTrue(len(thread_list) == 1,
+                       "One thread stopped at the exception breakpoint.")

diff --git a/lldb/source/Target/LanguageRuntime.cpp b/lldb/source/Target/LanguageRuntime.cpp
index 999ac99..32dd805 100644 (file)
--- a/lldb/source/Target/LanguageRuntime.cpp
+++ b/lldb/source/Target/LanguageRuntime.cpp
@@ -155,8 +155,10 @@ public:
 
 protected:
   BreakpointResolverSP CopyForBreakpoint(Breakpoint &breakpoint) override {
-    return BreakpointResolverSP(
+    BreakpointResolverSP ret_sp(
         new ExceptionBreakpointResolver(m_language, m_catch_bp, m_throw_bp));
+    ret_sp->SetBreakpoint(&breakpoint);
+    return ret_sp;
   }
 
   bool SetActualResolver() {