03304427a9
Now that the wathpoint tests have their own category, we can easily skip them on devices which don't have watchpoint support. Therefore, we don't need an android xfail on each of these tests. llvm-svn: 317276
112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
"""
|
|
Use lldb Python SBValue API to create a watchpoint for read_write of 'globl' var.
|
|
"""
|
|
|
|
from __future__ import print_function
|
|
|
|
|
|
import os
|
|
import time
|
|
import re
|
|
import lldb
|
|
from lldbsuite.test.decorators import *
|
|
from lldbsuite.test.lldbtest import *
|
|
from lldbsuite.test import lldbutil
|
|
|
|
|
|
class SetWatchpointAPITestCase(TestBase):
|
|
|
|
mydir = TestBase.compute_mydir(__file__)
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# Our simple source filename.
|
|
self.source = 'main.c'
|
|
# Find the line number to break inside main().
|
|
self.line = line_number(
|
|
self.source, '// Set break point at this line.')
|
|
|
|
@add_test_categories(['pyapi'])
|
|
@expectedFailureAll(
|
|
oslist=["windows"],
|
|
bugnumber="llvm.org/pr24446: WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows")
|
|
# Read-write watchpoints not supported on SystemZ
|
|
@expectedFailureAll(archs=['s390x'])
|
|
def test_watch_val(self):
|
|
"""Exercise SBValue.Watch() API to set a watchpoint."""
|
|
self.build()
|
|
exe = os.path.join(os.getcwd(), "a.out")
|
|
|
|
# Create a target by the debugger.
|
|
target = self.dbg.CreateTarget(exe)
|
|
self.assertTrue(target, VALID_TARGET)
|
|
|
|
# Now create a breakpoint on main.c.
|
|
breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
|
|
self.assertTrue(breakpoint and
|
|
breakpoint.GetNumLocations() == 1,
|
|
VALID_BREAKPOINT)
|
|
|
|
# Now launch the process, and do not stop at the entry point.
|
|
process = target.LaunchSimple(
|
|
None, None, self.get_process_working_directory())
|
|
|
|
# We should be stopped due to the breakpoint. Get frame #0.
|
|
process = target.GetProcess()
|
|
self.assertTrue(process.GetState() == lldb.eStateStopped,
|
|
PROCESS_STOPPED)
|
|
thread = lldbutil.get_stopped_thread(
|
|
process, lldb.eStopReasonBreakpoint)
|
|
frame0 = thread.GetFrameAtIndex(0)
|
|
|
|
# Watch 'global' for read and write.
|
|
value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal)
|
|
error = lldb.SBError()
|
|
watchpoint = value.Watch(True, True, True, error)
|
|
self.assertTrue(value and watchpoint,
|
|
"Successfully found the variable and set a watchpoint")
|
|
self.DebugSBValue(value)
|
|
|
|
# Hide stdout if not running with '-t' option.
|
|
if not self.TraceOn():
|
|
self.HideStdout()
|
|
|
|
print(watchpoint)
|
|
|
|
# Continue. Expect the program to stop due to the variable being
|
|
# written to.
|
|
process.Continue()
|
|
|
|
if (self.TraceOn()):
|
|
lldbutil.print_stacktraces(process)
|
|
|
|
thread = lldbutil.get_stopped_thread(
|
|
process, lldb.eStopReasonWatchpoint)
|
|
self.assertTrue(thread, "The thread stopped due to watchpoint")
|
|
self.DebugSBValue(value)
|
|
|
|
# Continue. Expect the program to stop due to the variable being read
|
|
# from.
|
|
process.Continue()
|
|
|
|
if (self.TraceOn()):
|
|
lldbutil.print_stacktraces(process)
|
|
|
|
thread = lldbutil.get_stopped_thread(
|
|
process, lldb.eStopReasonWatchpoint)
|
|
self.assertTrue(thread, "The thread stopped due to watchpoint")
|
|
self.DebugSBValue(value)
|
|
|
|
# Continue the process. We don't expect the program to be stopped
|
|
# again.
|
|
process.Continue()
|
|
|
|
# At this point, the inferior process should have exited.
|
|
self.assertTrue(
|
|
process.GetState() == lldb.eStateExited,
|
|
PROCESS_EXITED)
|
|
|
|
self.dbg.DeleteTarget(target)
|
|
self.assertFalse(watchpoint.IsValid())
|