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"""
Test watchpoint modify command to set condition on a watchpoint.
"""
from __future__ import print_function
import os, time
import lldb
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil
class WatchpointConditionCmdTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Our simple source filename.
self.source = 'main.cpp'
# 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.')
# Build dictionary to have unique executable names for each test method.
self.exe_name = self.testMethodName
self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
@expectedFailureAndroid(archs=['arm', 'aarch64']) # Watchpoints not supported
@expectedFailureWindows("llvm.org/pr24446") # WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows
def test_watchpoint_cond(self):
"""Test watchpoint condition."""
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'.
# With a condition of 'global==5'.
self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED,
substrs = ['Watchpoint created', 'size = 4', 'type = w',
'%s:%d' % (self.source, self.decl)])
self.runCmd("watchpoint modify -c 'global==5'")
# 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', 'global==5'])
self.runCmd("process continue")
# We should be stopped again due to the watchpoint (write type).
# The stop reason of the thread should be watchpoint.
self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
substrs = ['stop reason = watchpoint'])
self.expect("frame variable --show-globals global",
substrs = ['(int32_t)', 'global = 5'])
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should now be 2.
self.expect("watchpoint list -v",
substrs = ['hit_count = 5'])
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