[lldb] convert jit-loader_rtdyld_elf.test to an API test

lldb/test/API/functionalities/breakpoint/jit_loader_rtdyld_elf/Makefile

@@ -0,0 +1,12 @@
+CXX_SOURCES := jitbp.cpp
+
+include Makefile.rules
+
+jitbp.ll: jitbp.cpp
+	$(CXX) -g -S -emit-llvm --target=x86_64-unknown-unknown-elf \
+	      -o $@ $<
+
+all: jitbp.ll
+
+clean::
+	rm -f jitbp.ll

lldb/test/API/functionalities/breakpoint/jit_loader_rtdyld_elf/TestJitBreakPoint.py

@@ -0,0 +1,55 @@
+"""
+Test that pending breakpoints resolve for JITted code with mcjit and rtdyld.
+"""
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+
+import shutil
+
+
+class TestJitBreakpoint(TestBase):
+    def setUp(self):
+        TestBase.setUp(self)
+        self.ll = self.getBuildArtifact("jitbp.ll")
+
+    @skipUnlessArch("x86_64")
+    @expectedFailureAll(oslist=["windows"])
+    def test_jit_breakpoints(self):
+        self.build()
+        self.do_test("--jit-kind=mcjit")
+        self.do_test("--jit-linker=rtdyld")
+
+    def do_test(self, jit_flag: str):
+        self.dbg.SetAsync(False)
+
+        self.dbg.HandleCommand("settings set plugin.jit-loader.gdb.enable on")
+
+        lldb_dir = os.path.dirname(lldbtest_config.lldbExec)
+        lli_path = shutil.which("lli", path=lldb_dir)
+        self.assertTrue(os.path.exists(lli_path), "lli not found")
+        target = self.dbg.CreateTarget(lli_path)
+        self.assertTrue(target.IsValid())
+
+        bp = target.BreakpointCreateByName("jitbp")
+        self.assertTrue(bp.IsValid())
+        self.assertEqual(bp.GetNumLocations(), 0, "Expected a pending breakpoint")
+
+        launch_info = target.GetLaunchInfo()
+        launch_info.SetArguments([jit_flag, self.ll], True)
+
+        error = lldb.SBError()
+        process = target.Launch(launch_info, error)
+        self.assertTrue(process.IsValid())
+        self.assertTrue(error.Success(), error.GetCString())
+
+        self.assertEqual(process.GetState(), lldb.eStateStopped)
+
+        thread = process.GetSelectedThread()
+        frame = thread.GetSelectedFrame()
+        self.assertIn("jitbp", frame.GetFunctionName())
+
+        self.assertGreaterEqual(
+            bp.GetNumLocations(), 1, "Breakpoint must be resolved after JIT loads code"
+        )

lldb/test/API/functionalities/breakpoint/jit_loader_rtdyld_elf/jitbp.cpp

@@ -0,0 +1,2 @@
+int jitbp() { return 0; }
+int main() { return jitbp(); }