89 lines
3.3 KiB
Python
89 lines
3.3 KiB
Python
"""
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Test my first lldb watchpoint.
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"""
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import os, time
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import unittest2
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import lldb
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from lldbtest import *
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import lldbutil
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class HelloWatchpointTestCase(TestBase):
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def getCategories (self):
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return ['basic_process']
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Our simple source filename.
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self.source = 'main.c'
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# Find the line number to break inside main().
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self.line = line_number(self.source, '// Set break point at this line.')
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# And the watchpoint variable declaration line number.
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self.decl = line_number(self.source, '// Watchpoint variable declaration.')
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self.exe_name = 'a.out'
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self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name}
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@expectedFailureAndroid(archs=['arm', 'aarch64']) # Watchpoints not supported
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@expectedFailureWindows("llvm.org/pr24446")
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def test_hello_watchpoint_using_watchpoint_set(self):
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"""Test a simple sequence of watchpoint creation and watchpoint hit."""
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self.build(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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exe = os.path.join(os.getcwd(), self.exe_name)
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Add a breakpoint to set a watchpoint when stopped on the breakpoint.
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lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# We should be stopped again due to the breakpoint.
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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# Now let's set a write-type watchpoint for 'global'.
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# There should be only one watchpoint hit (see main.c).
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self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = w',
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'%s:%d' % (self.source, self.decl)])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should be 0 initially.
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self.expect("watchpoint list -v",
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substrs = ['hit_count = 0'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (write type), but
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# only once. The stop reason of the thread should be watchpoint.
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self.expect("thread list", STOPPED_DUE_TO_WATCHPOINT,
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substrs = ['stopped',
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'stop reason = watchpoint'])
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self.runCmd("process continue")
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# Don't expect the read of 'global' to trigger a stop exception.
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process = self.dbg.GetSelectedTarget().GetProcess()
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if process.GetState() == lldb.eStateStopped:
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self.assertFalse(lldbutil.get_stopped_thread(process, lldb.eStopReasonWatchpoint))
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should now be 1.
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self.expect("watchpoint list -v",
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substrs = ['hit_count = 1'])
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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