58 lines
2 KiB
Python
58 lines
2 KiB
Python
"""
|
|
Watch one byte in the middle of a doubleword, mutate the
|
|
entire doubleword including the watched byte. On AArch64
|
|
the trap address is probably the start of the doubleword,
|
|
instead of the address of our watched byte. Test that lldb
|
|
correctly associates this watchpoint trap with our watchpoint.
|
|
"""
|
|
|
|
|
|
import lldb
|
|
from lldbsuite.test.decorators import *
|
|
from lldbsuite.test.lldbtest import *
|
|
from lldbsuite.test import lldbutil
|
|
|
|
|
|
class UnalignedWatchpointTestCase(TestBase):
|
|
NO_DEBUG_INFO_TESTCASE = True
|
|
|
|
@skipIfOutOfTreeDebugserver
|
|
def test_unaligned_watchpoint(self):
|
|
"""Test an unaligned watchpoint triggered by a larger aligned write."""
|
|
self.build()
|
|
self.main_source_file = lldb.SBFileSpec("main.c")
|
|
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
|
|
self, "break here", self.main_source_file
|
|
)
|
|
|
|
frame = thread.GetFrameAtIndex(0)
|
|
|
|
self.expect("watchpoint set variable a.buf[2]")
|
|
|
|
self.runCmd("process continue")
|
|
|
|
# We should be stopped again due to the watchpoint (write type), but
|
|
# only once. The stop reason of the thread should be watchpoint.
|
|
self.expect(
|
|
"thread list",
|
|
STOPPED_DUE_TO_WATCHPOINT,
|
|
substrs=["stopped", "stop reason = watchpoint"],
|
|
)
|
|
|
|
# Use the '-v' option to do verbose listing of the watchpoint.
|
|
# The hit count should now be 1.
|
|
self.expect("watchpoint list -v", substrs=["hit_count = 1"])
|
|
|
|
self.runCmd("process continue")
|
|
|
|
# We should be stopped again due to the watchpoint (write type), but
|
|
# only once. The stop reason of the thread should be watchpoint.
|
|
self.expect(
|
|
"thread list",
|
|
STOPPED_DUE_TO_WATCHPOINT,
|
|
substrs=["stopped", "stop reason = watchpoint"],
|
|
)
|
|
|
|
# Use the '-v' option to do verbose listing of the watchpoint.
|
|
# The hit count should now be 1.
|
|
self.expect("watchpoint list -v", substrs=["hit_count = 2"])
|