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+"""
+Test my first lldb watchpoint.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class HelloWatchpointTestCase(TestBase):
+
+ def getCategories (self):
+ return ['basic_process']
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ def setUp(self):
+ # Call super's setUp().
+ TestBase.setUp(self)
+ # Our simple source filename.
+ self.source = 'main.c'
+ # Find the line number to break inside main().
+ self.line = line_number(self.source, '// Set break point at this line.')
+ # And the watchpoint variable declaration line number.
+ self.decl = line_number(self.source, '// Watchpoint variable declaration.')
+ self.exe_name = 'a.out'
+ self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name}
+
+ @expectedFailureAndroid(archs=['arm', 'aarch64']) # Watchpoints not supported
+ @expectedFailureWindows("llvm.org/pr24446")
+ def test_hello_watchpoint_using_watchpoint_set(self):
+ """Test a simple sequence of watchpoint creation and watchpoint hit."""
+ 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)
+
+ # 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 for 'global'.
+ # There should be only one watchpoint hit (see main.c).
+ self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED,
+ substrs = ['Watchpoint created', 'size = 4', 'type = w',
+ '%s:%d' % (self.source, self.decl)])
+
+ # 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.runCmd("process continue")
+
+ # Don't expect the read of 'global' to trigger a stop exception.
+ process = self.dbg.GetSelectedTarget().GetProcess()
+ if process.GetState() == lldb.eStateStopped:
+ self.assertFalse(lldbutil.get_stopped_thread(process, lldb.eStopReasonWatchpoint))
+
+ # 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'])
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