4570d3eba0
This has led to many test suite failures because of copy and paste where new test cases were based off of other test cases and the "mydir" variable wasn't updated. Now you can call your superclasses "compute_mydir()" function with "__file__" as the sole argument and the relative path will be computed for you. llvm-svn: 196985
105 lines
4.3 KiB
Python
105 lines
4.3 KiB
Python
"""
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Test lldb watchpoint that uses 'watchpoint set -w write -x size' to watch a pointed location with size.
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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 WatchLocationUsingWatchpointSetTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@dsym_test
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def test_watchlocation_with_dsym_using_watchpoint_set(self):
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"""Test watching a location with 'watchpoint set expression -w write -x size' option."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchlocation_using_watchpoint_set()
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@expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD
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@dwarf_test
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def test_watchlocation_with_dwarf_using_watchpoint_set(self):
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"""Test watching a location with 'watchpoint set expression -w write -x size' option."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchlocation_using_watchpoint_set()
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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.cpp'
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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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# This is for verifying that watch location works.
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self.violating_func = "do_bad_thing_with_location";
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# Build dictionary to have unique executable names for each test method.
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self.exe_name = self.testMethodName
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self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
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def watchlocation_using_watchpoint_set(self):
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"""Test watching a location with '-x size' option."""
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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 pointed to by 'g_char_ptr' and
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# with offset as 7.
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# The main.cpp, by design, misbehaves by not following the agreed upon
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# protocol of only accessing the allowable index range of [0, 6].
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self.expect("watchpoint set expression -w write -x 1 -- g_char_ptr + 7", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 1', 'type = w'])
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self.runCmd("expr unsigned val = g_char_ptr[7]; val")
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self.expect(self.res.GetOutput().splitlines()[0], exe=False,
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endstr = ' = 0')
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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.violating_func])
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# Switch to the thread stopped due to watchpoint and issue some commands.
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self.switch_to_thread_with_stop_reason(lldb.eStopReasonWatchpoint)
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self.runCmd("thread backtrace")
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self.runCmd("expr unsigned val = g_char_ptr[7]; val")
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self.expect(self.res.GetOutput().splitlines()[0], exe=False,
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endstr = ' = 99')
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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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self.runCmd("thread backtrace all")
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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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