Implement basic DidAttach and DidLaunch for DynamicLoaderWindowsDYLD

Summary:
This commit implements basic DidAttach and DidLaunch for the windows
DynamicLoader plugin which allow us to load shared libraries from the
inferior.

Reviewers: sas, zturner

Reviewed By: zturner

Differential Revision: https://reviews.llvm.org/D54544

llvm-svn: 346994

5 files changed, 101 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/Makefile b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/Makefile
new file mode 100644
index 00000000000..8289e159fc7
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/Makefile
@@ -0,0 +1,14 @@
+LEVEL := ../../make
+
+LD_EXTRAS := -ldllfunc
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
+
+a.out: dllfunc
+
+dllfunc:
+	$(MAKE) VERBOSE=1 VPATH=$(SRCDIR) -I $(SRCDIR) -f $(SRCDIR)/dllfunc.mk
+
+clean::
+	$(MAKE) -f $(SRCDIR)/dllfunc.mk clean
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/TestWindowsDYLD.py b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/TestWindowsDYLD.py
new file mode 100644
index 00000000000..77d4e710908
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/TestWindowsDYLD.py
@@ -0,0 +1,42 @@
+"""
+Test that breakpoints work in a DLL
+"""
+
+from __future__ import print_function
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+@skipUnlessWindows
+class WindowsDLLTestCase(TestBase):
+    def setUP(self):
+        TestBase.setUp(self)
+        self.build()
+
+    def test_dll_linking(self):
+        """test that the debugger works with DLLs"""
+
+        exe = self.getBuildArtifact("a.out")
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target and target.IsValid(), "Target is valid")
+
+        self.runCmd("breakpoint set --file main.c --line 16")
+        self.runCmd("breakpoint set --file dllfunc.c --line 18")
+
+        process = target.LaunchSimple(None, None, self.get_process_working_directory())
+
+        self.expect("p x", "16")
+        self.runCmd("thread step-out")
+        self.expect("p x", "16")
+        self.expect("thread step-in")
+        self.expect("thread step-in")
+        self.expect("p n", "8")
+        self.runCmd("c")
+        self.expect("p x", "64")
+        self.runCmd("breakpoint delete 2")
+        self.runCmd("c")
+
+        self.assertEqual(process.GetExitStatus(), 336, PROCESS_EXITED)
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/dllfunc.c b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/dllfunc.c
new file mode 100644
index 00000000000..aadf4e34a86
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/dllfunc.c
@@ -0,0 +1,19 @@
+//===-- a.c -----------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <windows.h>
+
+BOOL WINAPI DllMain(HINSTANCE h, DWORD reason, void* reserved) {
+  return TRUE;
+}
+
+int __declspec(dllexport) DllFunc(int n) {
+  int x = n * n;  
+  return x;  // set breakpoint here
+}
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/dllfunc.mk b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/dllfunc.mk
new file mode 100644
index 00000000000..f282344d36a
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/dllfunc.mk
@@ -0,0 +1,7 @@
+LEVEL := ../../make
+
+DYLIB_NAME := dllfunc
+DYLIB_C_SOURCES := dllfunc.c
+DYLIB_ONLY := YES
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/main.c b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/main.c
new file mode 100644
index 00000000000..4b62744fbd0
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/windows_dyld/main.c
@@ -0,0 +1,19 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <windows.h>
+
+int __declspec(dllimport) DllFunc(int n);
+
+int main(int argc, char ** argv) {
+  int x = DllFunc(4);
+  int y = DllFunc(8);   // set breakpoint here
+  int z = DllFunc(16);
+  return x + y + z;
+}