1 files changed, 102 insertions, 0 deletions
diff --git a/lldb/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py b/lldb/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py
new file mode 100644
index 00000000000..56e6e502023
--- /dev/null
+++ b/lldb/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py
@@ -0,0 +1,102 @@
+"""
+Test lldb watchpoint that uses '-x size' to watch a pointed location with size.
+"""
+
+import os, time
+import unittest2
+import lldb
+from lldbtest import *
+
+class WatchLocationUsingWatchpointSetTestCase(TestBase):
+
+    mydir = os.path.join("functionalities", "watchpoint", "watchpoint_set_command")
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    def test_watchlocation_with_dsym_using_watchpoint_set(self):
+        """Test watching a location with 'watchpoint set -w write -x size' option."""
+        self.buildDsym(dictionary=self.d)
+        self.setTearDownCleanup(dictionary=self.d)
+        self.watchlocation_using_watchpoint_set()
+
+    def test_watchlocation_with_dwarf_using_watchpoint_set(self):
+        """Test watching a location with 'watchpoint set -w write -x size' option."""
+        self.buildDwarf(dictionary=self.d)
+        self.setTearDownCleanup(dictionary=self.d)
+        self.watchlocation_using_watchpoint_set()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Our simple source filename.
+        self.source = 'main.cpp'
+        # Find the line number to break inside main().
+        self.line = line_number(self.source, '// Set break point at this line.')
+        # This is for verifying that watch location works.
+        self.violating_func = "do_bad_thing_with_location";
+        # Build dictionary to have unique executable names for each test method.
+        self.exe_name = self.testMethodName
+        self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
+
+    def watchlocation_using_watchpoint_set(self):
+        """Test watching a location with '-x size' option."""
+        exe = os.path.join(os.getcwd(), self.exe_name)
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+        # Add a breakpoint to set a watchpoint when stopped on the breakpoint.
+        self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
+            startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
+                       (self.source, self.line))
+
+        # Run the program.
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # We should be stopped again due to the breakpoint.
+        # The stop reason of the thread should be breakpoint.
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+            substrs = ['stopped',
+                       'stop reason = breakpoint'])
+
+        # Now let's set a write-type watchpoint pointed to by 'g_char_ptr' and
+        # with offset as 7.
+        # The main.cpp, by design, misbehaves by not following the agreed upon
+        # protocol of only accessing the allowable index range of [0, 6].
+        self.expect("watchpoint set -w write -x 1 g_char_ptr + 7", WATCHPOINT_CREATED,
+            substrs = ['Watchpoint created', 'size = 1', 'type = w'])
+        self.runCmd("expr unsigned val = *g_char_ptr; val")
+        self.expect(self.res.GetOutput().splitlines()[0], exe=False,
+            endstr = ' = 0')
+
+        # Use the '-v' option to do verbose listing of the watchpoint.
+        # The hit count should be 0 initially.
+        self.expect("watchpoint list -v",
+            substrs = ['hit_count = 0'])
+
+        self.runCmd("process continue")
+
+        # We should be stopped again due to the watchpoint (write type), but
+        # only once.  The stop reason of the thread should be watchpoint.
+        self.expect("thread list", STOPPED_DUE_TO_WATCHPOINT,
+            substrs = ['stopped',
+                       'stop reason = watchpoint',
+                       self.violating_func])
+
+        # Switch to the thread stopped due to watchpoint and issue some commands.
+        self.switch_to_thread_with_stop_reason(lldb.eStopReasonWatchpoint)
+        self.runCmd("thread backtrace")
+        self.runCmd("expr unsigned val = g_char_ptr[7]; val")
+        self.expect(self.res.GetOutput().splitlines()[0], exe=False,
+            endstr = ' = 99')
+
+        # Use the '-v' option to do verbose listing of the watchpoint.
+        # The hit count should now be 1.
+        self.expect("watchpoint list -v",
+            substrs = ['hit_count = 1'])
+
+        self.runCmd("thread backtrace all")
+
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()