Add test cases for watchpoint list, enable, disable, and delete commands.
llvm-svn: 140398
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ceb55e72de
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LEVEL = ../../../make
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C_SOURCES := main.c
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include $(LEVEL)/Makefile.rules
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"""
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Test watchpoint list, enable, disable, and delete commands.
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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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class WatchpointCommandsTestCase(TestBase):
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mydir = os.path.join("functionalities", "watchpoint", "watchpoint_commands")
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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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self.line2 = line_number(self.source, '// 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, '// Watchpoint variable declaration.')
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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 = {'C_SOURCES': self.source, 'EXE': self.exe_name}
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_rw_watchpoint_with_dsym(self):
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"""Test read_write watchpoint and expect to stop two times."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.normal_read_write_watchpoint()
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def test_rw_watchpoint_with_dwarf(self):
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"""Test read_write watchpoint and expect to stop two times."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.normal_read_write_watchpoint()
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_rw_watchpoint_delete_with_dsym(self):
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"""Test delete watchpoint and expect not to stop for watchpoint."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.delete_read_write_watchpoint()
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def test_rw_watchpoint_delete_with_dwarf(self):
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"""Test delete watchpoint and expect not to stop for watchpoint."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.delete_read_write_watchpoint()
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_rw_disable_after_first_stop_with_dsym(self):
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"""Test read_write watchpoint but disable it after the first stop."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.read_write_watchpoint_disable_after_first_stop()
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def test_rw_disable_after_first_stop__with_dwarf(self):
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"""Test read_write watchpoint but disable it after the first stop."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.read_write_watchpoint_disable_after_first_stop()
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_rw_disable_then_enable_with_dsym(self):
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"""Test read_write watchpoint, disable initially, then enable it."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.read_write_watchpoint_disable_then_enable()
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def test_rw_disable_then_enable_with_dwarf(self):
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"""Test read_write watchpoint, disable initially, then enable it."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.read_write_watchpoint_disable_then_enable()
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def normal_read_write_watchpoint(self):
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"""Do read_write watchpoint and expect to stop two times."""
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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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self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
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(self.source, self.line))
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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("frame variable -w read_write -g -L global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = rw',
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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 (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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def delete_read_write_watchpoint(self):
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"""Do delete watchpoint immediately and expect not to stop for watchpoint."""
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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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self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
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(self.source, self.line))
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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("frame variable -w read_write -g -L global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = rw',
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'%s:%d' % (self.source, self.decl)])
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# Delete the watchpoint immediately, but set auto-confirm to true 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 set -r auto-confirm")
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# Use the '-v' option to do verbose listing of the watchpoint.
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self.runCmd("watchpoint list -v")
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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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def read_write_watchpoint_disable_after_first_stop(self):
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"""Do read_write watchpoint but disable it after the first stop."""
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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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self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
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(self.source, self.line))
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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("frame variable -w read_write -g -L global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = rw',
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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 = ['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 agian 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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def read_write_watchpoint_disable_then_enable(self):
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"""Do read_write watchpoint, disable initially, then enable it."""
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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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self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
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(self.source, self.line))
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self.expect("breakpoint set -l %d" % self.line2, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 2: file ='%s', line = %d, locations = 1" %
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(self.source, self.line2))
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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("frame variable -w read_write -g -L global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = rw',
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'%s:%d' % (self.source, 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 agian 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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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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//===-- main.c --------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#include <stdint.h>
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int32_t global = 10; // Watchpoint variable declaration.
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int main(int argc, char** argv) {
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int local = 0;
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printf("&global=%p\n", &global);
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printf("about to write to 'global'...\n"); // Set break point at this line.
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// When stopped, watch 'global' for write.
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global = 20;
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local += argc;
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++local; // Set 2nd break point for disable_then_enable test case.
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printf("local: %d\n", local);
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printf("global=%d\n", global);
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}
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