1 files changed, 98 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/watchpoint/hello_watchlocation/TestWatchLocation.py b/packages/Python/lldbsuite/test/functionalities/watchpoint/hello_watchlocation/TestWatchLocation.py
new file mode 100644
index 000000000000..f0a0b5ab99d0
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/watchpoint/hello_watchlocation/TestWatchLocation.py
@@ -0,0 +1,98 @@
+"""
+Test lldb watchpoint that uses '-s size' to watch a pointed location with size.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import re
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class HelloWatchLocationTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    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}
+
+    @expectedFailureAndroid(archs=['arm', 'aarch64']) # Watchpoints not supported
+    @expectedFailureWindows("llvm.org/pr24446") # WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows
+    @expectedFailureAll(archs=['mips', 'mipsel', 'mips64', 'mips64el']) # Most of the MIPS boards provide only one H/W watchpoints, and S/W watchpoints are not supported yet
+    def test_hello_watchlocation(self):
+        """Test watching a location with '-s size' option."""
+        self.build(dictionary=self.d)
+        self.setTearDownCleanup(dictionary=self.d)
+        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.
+        lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=False)
+
+        # 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'.
+        # The main.cpp, by design, misbehaves by not following the agreed upon
+        # protocol of using a mutex while accessing the global pool and by not
+        # incrmenting the global pool by 2.
+        self.expect("watchpoint set expression -w write -s 1 -- g_char_ptr", WATCHPOINT_CREATED,
+            substrs = ['Watchpoint created', 'size = 1', 'type = w'])
+        # Get a hold of the watchpoint id just created, it is used later on to
+        # match the watchpoint id which is expected to be fired.
+        match = re.match("Watchpoint created: Watchpoint (.*):", self.res.GetOutput().splitlines()[0])
+        if match:
+            expected_wp_id = int(match.group(1), 0)
+        else:
+            self.fail("Grokking watchpoint id faailed!") 
+
+        self.runCmd("expr unsigned val = *g_char_ptr; val")
+        self.expect(self.res.GetOutput().splitlines()[0], exe=False,
+            endstr = ' = 0')
+
+        self.runCmd("watchpoint set expression -w write -s 4 -- &threads[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 %d' % expected_wp_id])
+
+        # 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.expect("frame info",
+            substrs = [self.violating_func])
+
+        # 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")