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"""
Test watchpoint slots we should not be able to install multiple watchpoints
within same word boundary. We should be able to install individual watchpoints
on any of the bytes, half-word, or word. This is only for ARM/AArch64 targets.
"""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class WatchpointSlotsTestCase(TestBase):
NO_DEBUG_INFO_TESTCASE = True
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Source filename.
self.source = 'main.c'
# Output filename.
self.exe_name = 'a.out'
self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name}
# Watchpoints not supported
@expectedFailureAndroid(archs=['arm', 'aarch64'])
# This is a arm and aarch64 specific test case. No other architectures tested.
@skipIf(archs=no_match(['arm', 'aarch64']))
def test_multiple_watchpoints_on_same_word(self):
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)
# Detect line number after which we are going to increment arrayName.
loc_line = line_number('main.c', '// About to write byteArray')
# Set a breakpoint on the line detected above.
lldbutil.run_break_set_by_file_and_line(
self, "main.c", loc_line, num_expected_locations=1, loc_exact=True)
# Run the program.
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped', 'stop reason = breakpoint'])
# Delete breakpoint we just hit.
self.expect("breakpoint delete 1", substrs=['1 breakpoints deleted'])
# Set a watchpoint at byteArray[0]
self.expect("watchpoint set variable byteArray[0]", WATCHPOINT_CREATED,
substrs=['Watchpoint created','size = 1'])
# Use the '-v' option to do verbose listing of the watchpoint.
# The hit count should be 0 initially.
self.expect("watchpoint list -v 1", substrs=['hit_count = 0'])
# Try setting a watchpoint at byteArray[1]
self.expect("watchpoint set variable byteArray[1]", error=True,
substrs=['Watchpoint creation failed'])
self.runCmd("process continue")
# We should be stopped due to the watchpoint.
# The stop reason of the thread should be watchpoint.
self.expect("thread list", STOPPED_DUE_TO_WATCHPOINT,
substrs=['stopped', 'stop reason = watchpoint 1'])
# Delete the watchpoint we hit above successfully.
self.expect("watchpoint delete 1", substrs=['1 watchpoints deleted'])
# Set a watchpoint at byteArray[3]
self.expect("watchpoint set variable byteArray[3]", WATCHPOINT_CREATED,
substrs=['Watchpoint created','size = 1'])
# Resume inferior.
self.runCmd("process continue")
# We should be stopped due to the watchpoint.
# The stop reason of the thread should be watchpoint.
self.expect("thread list -v", STOPPED_DUE_TO_WATCHPOINT,
substrs=['stopped', 'stop reason = watchpoint 3'])
# Resume inferior.
self.runCmd("process continue")
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