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https://github.com/Gericom/teak-llvm.git
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8652b249e6
Normal customer devices won't be able to run these tests, we're hoping to get a public facing bot set up at some point. Both devices pass the testsuite without any errors or failures. I have seen some instability with the armv7 test runs, I may submit additional patches to address this. arm64 looks good. I'll be watching the bots for the rest of today; if any problems are introduced by this patch I'll revert it - if anyone sees a problem with their bot that I don't see, please do the same. I know it's a rather large patch. One change I had to make specifically for iOS devices was that debugserver can't create files. There were several tests that launch the inferior process redirecting its output to a file, then they retrieve the file. They were not trying to test file redirection in these tests, so I rewrote those to write their output to a file directly. llvm-svn: 314132
133 lines
4.9 KiB
Python
133 lines
4.9 KiB
Python
"""
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Use lldb Python SBTarget API to iterate on the watchpoint(s) for the target.
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"""
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from __future__ import print_function
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import os
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import re
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import time
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class WatchpointIteratorTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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# hardware watchpoints are not reported with a hardware index # on armv7 on ios devices
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def affected_by_radar_34564183(self):
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return (self.getArchitecture() == 'armv7' or self.getArchitecture() == 'armv7k') and self.platformIsDarwin()
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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(
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self.source, '// Set break point at this line.')
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@add_test_categories(['pyapi'])
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# Watchpoints not supported
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@expectedFailureAndroid(archs=['arm', 'aarch64'])
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@expectedFailureAll(
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oslist=["windows"],
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bugnumber="llvm.org/pr24446: WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows")
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def test_watch_iter(self):
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"""Exercise SBTarget.watchpoint_iter() API to iterate on the available watchpoints."""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Create a breakpoint on main.c in order to set our watchpoint later.
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breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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# We should be stopped due to the breakpoint. Get frame #0.
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process = target.GetProcess()
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self.assertTrue(process.GetState() == lldb.eStateStopped,
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PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonBreakpoint)
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frame0 = thread.GetFrameAtIndex(0)
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# Watch 'global' for read and write.
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value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal)
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error = lldb.SBError()
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watchpoint = value.Watch(True, False, True, error)
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self.assertTrue(value and watchpoint,
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"Successfully found the variable and set a watchpoint")
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self.DebugSBValue(value)
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# Hide stdout if not running with '-t' option.
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if not self.TraceOn():
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self.HideStdout()
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# There should be only 1 watchpoint location under the target.
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self.assertTrue(target.GetNumWatchpoints() == 1)
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self.assertTrue(watchpoint.IsEnabled())
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watch_id = watchpoint.GetID()
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self.assertTrue(watch_id != 0)
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# Continue. Expect the program to stop due to the variable being
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# written to.
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process.Continue()
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# Hide stdout if not running with '-t' option.
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if not self.TraceOn():
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self.HideStdout()
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# Print the stack traces.
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lldbutil.print_stacktraces(process)
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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonWatchpoint)
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self.assertTrue(thread, "The thread stopped due to watchpoint")
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self.DebugSBValue(value)
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# We currently only support hardware watchpoint. Verify that we have a
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# meaningful hardware index at this point. Exercise the printed repr of
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# SBWatchpointLocation.
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print(watchpoint)
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if not self.affected_by_radar_34564183():
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self.assertTrue(watchpoint.GetHardwareIndex() != -1)
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# SBWatchpoint.GetDescription() takes a description level arg.
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print(lldbutil.get_description(watchpoint, lldb.eDescriptionLevelFull))
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# Now disable the 'rw' watchpoint. The program won't stop when it reads
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# 'global' next.
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watchpoint.SetEnabled(False)
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self.assertTrue(watchpoint.GetHardwareIndex() == -1)
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self.assertFalse(watchpoint.IsEnabled())
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# Continue. The program does not stop again when the variable is being
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# read from because the watchpoint location has been disabled.
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process.Continue()
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# At this point, the inferior process should have exited.
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self.assertTrue(
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process.GetState() == lldb.eStateExited,
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PROCESS_EXITED)
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# Verify some vital statistics and exercise the iterator API.
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for watchpoint in target.watchpoint_iter():
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self.assertTrue(watchpoint)
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self.assertTrue(watchpoint.GetWatchSize() == 4)
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self.assertTrue(watchpoint.GetHitCount() == 1)
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print(watchpoint)
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