366 lines
14 KiB
Python
366 lines
14 KiB
Python
"""
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Test watchpoint list, enable, disable, and delete commands.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class WatchpointCommandsTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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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(
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self.source, '// Set break point at this line.')
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self.line2 = line_number(
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self.source,
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'// Set 2nd break point for disable_then_enable test case.')
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# And the watchpoint variable declaration line number.
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self.decl = line_number(self.source,
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'// Watchpoint variable declaration.')
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# Build dictionary to have unique executable names for each test
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# method.
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self.exe_name = self.testMethodName
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self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name}
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# Read-write watchpoints not supported on SystemZ
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@expectedFailureAll(archs=['s390x'])
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def test_rw_watchpoint(self):
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"""Test read_write watchpoint and expect to stop two times."""
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self.build(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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exe = self.getBuildArtifact(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(
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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 read_write-type watchpoint for 'global'.
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# There should be two watchpoint hits (see main.c).
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self.expect(
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"watchpoint set variable -w read_write global",
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WATCHPOINT_CREATED,
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substrs=[
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'Watchpoint created',
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'size = 4',
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'type = rw',
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'%s:%d' %
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(self.source,
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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=['Number of supported hardware watchpoints:',
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'hit_count = 0'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (read_write type).
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# The stop reason of the thread should be watchpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
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substrs=['stop reason = watchpoint'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (read_write type).
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# The stop reason of the thread should be watchpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
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substrs=['stop reason = watchpoint'])
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self.runCmd("process continue")
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# There should be no more watchpoint hit and the process status should
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# be 'exited'.
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self.expect("process status",
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substrs=['exited'])
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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 2.
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self.expect("watchpoint list -v",
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substrs=['hit_count = 2'])
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# Read-write watchpoints not supported on SystemZ
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@expectedFailureAll(archs=['s390x'])
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def test_rw_watchpoint_delete(self):
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"""Test delete watchpoint and expect not to stop for watchpoint."""
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self.build()
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lldbutil.run_to_line_breakpoint(self, lldb.SBFileSpec(self.source),
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self.line)
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# Now let's set a read_write-type watchpoint for 'global'.
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# There should be two watchpoint hits (see main.c).
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self.expect(
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"watchpoint set variable -w read_write global",
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WATCHPOINT_CREATED,
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substrs=[
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'Watchpoint created',
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'size = 4',
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'type = rw',
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'%s:%d' %
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(self.source,
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self.decl)])
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# Delete the watchpoint immediately, but set auto-confirm to true
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# first.
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self.runCmd("settings set auto-confirm true")
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self.expect("watchpoint delete",
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substrs=['All watchpoints removed.'])
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# Restore the original setting of auto-confirm.
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self.runCmd("settings clear auto-confirm")
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target = self.dbg.GetSelectedTarget()
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self.assertTrue(target and not target.GetNumWatchpoints())
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# Now let's set a read_write-type watchpoint for 'global'.
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# There should be two watchpoint hits (see main.c).
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self.expect(
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"watchpoint set variable -w read_write global",
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WATCHPOINT_CREATED,
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substrs=[
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'Watchpoint created',
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'size = 4',
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'type = rw',
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'%s:%d' %
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(self.source,
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self.decl)])
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# Delete the watchpoint immediately using the force option.
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self.expect("watchpoint delete --force",
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substrs=['All watchpoints removed.'])
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self.assertTrue(target and not target.GetNumWatchpoints())
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self.runCmd("process continue")
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# There should be no more watchpoint hit and the process status should
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# be 'exited'.
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self.expect("process status",
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substrs=['exited'])
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# Read-write watchpoints not supported on SystemZ
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@expectedFailureAll(archs=['s390x'])
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def test_rw_watchpoint_set_ignore_count(self):
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"""Test watchpoint ignore count and expect to not to stop at all."""
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self.build(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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exe = self.getBuildArtifact(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(
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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 read_write-type watchpoint for 'global'.
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# There should be two watchpoint hits (see main.c).
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self.expect(
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"watchpoint set variable -w read_write global",
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WATCHPOINT_CREATED,
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substrs=[
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'Watchpoint created',
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'size = 4',
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'type = rw',
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'%s:%d' %
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(self.source,
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self.decl)])
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# Set the ignore count of the watchpoint immediately.
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self.expect("watchpoint ignore -i 2",
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substrs=['All watchpoints ignored.'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# Expect to find an ignore_count of 2.
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self.expect("watchpoint list -v",
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substrs=['hit_count = 0', 'ignore_count = 2'])
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self.runCmd("process continue")
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# There should be no more watchpoint hit and the process status should
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# be 'exited'.
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self.expect("process status",
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substrs=['exited'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# Expect to find a hit_count of 2 as well.
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self.expect("watchpoint list -v",
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substrs=['hit_count = 2', 'ignore_count = 2'])
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# Read-write watchpoints not supported on SystemZ
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@expectedFailureAll(archs=['s390x'])
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def test_rw_disable_after_first_stop(self):
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"""Test read_write watchpoint but disable it after the first stop."""
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self.build(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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exe = self.getBuildArtifact(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(
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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 read_write-type watchpoint for 'global'.
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# There should be two watchpoint hits (see main.c).
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self.expect(
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"watchpoint set variable -w read_write global",
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WATCHPOINT_CREATED,
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substrs=[
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'Watchpoint created',
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'size = 4',
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'type = rw',
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'%s:%d' %
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(self.source,
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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=['state = enabled', 'hit_count = 0'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (read_write type).
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# The stop reason of the thread should be watchpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
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substrs=['stop reason = watchpoint'])
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# Before continuing, we'll disable the watchpoint, which means we won't
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# stop again after this.
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self.runCmd("watchpoint disable")
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self.expect("watchpoint list -v",
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substrs=['state = disabled', 'hit_count = 1'])
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self.runCmd("process continue")
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# There should be no more watchpoint hit and the process status should
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# be 'exited'.
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self.expect("process status",
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substrs=['exited'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should be 1.
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self.expect("watchpoint list -v",
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substrs=['hit_count = 1'])
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# Read-write watchpoints not supported on SystemZ
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@expectedFailureAll(archs=['s390x'])
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def test_rw_disable_then_enable(self):
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"""Test read_write watchpoint, disable initially, then enable it."""
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self.build(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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exe = self.getBuildArtifact(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(
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self, None, self.line, num_expected_locations=1)
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lldbutil.run_break_set_by_file_and_line(
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self, None, self.line2, 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 read_write-type watchpoint for 'global'.
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# There should be two watchpoint hits (see main.c).
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self.expect(
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"watchpoint set variable -w read_write global",
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WATCHPOINT_CREATED,
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substrs=[
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'Watchpoint created',
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'size = 4',
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'type = rw',
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'%s:%d' %
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(self.source,
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self.decl)])
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# Immediately, we disable the watchpoint. We won't be stopping due to a
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# watchpoint after this.
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self.runCmd("watchpoint disable")
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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=['state = disabled', 'hit_count = 0'])
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self.runCmd("process continue")
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# We should be stopped again due to the breakpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stop reason = breakpoint'])
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# Before continuing, we'll enable the watchpoint, which means we will
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# stop again after this.
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self.runCmd("watchpoint enable")
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self.expect("watchpoint list -v",
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substrs=['state = enabled', 'hit_count = 0'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (read_write type).
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# The stop reason of the thread should be watchpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
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substrs=['stop reason = watchpoint'])
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self.runCmd("process continue")
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# There should be no more watchpoint hit and the process status should
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# be 'exited'.
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self.expect("process status",
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substrs=['exited'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should be 1.
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self.expect("watchpoint list -v",
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substrs=['hit_count = 1'])
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