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160 lines
6.3 KiB
160 lines
6.3 KiB
import unittest2
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import os
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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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def haswellOrLater():
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features = subprocess.check_output(["sysctl", "machdep.cpu"])
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return "AVX2" in features.split()
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class UniversalTestCase(TestBase):
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"""Test aspects of lldb commands on universal binaries."""
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NO_DEBUG_INFO_TESTCASE = True
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mydir = TestBase.compute_mydir(__file__)
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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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# Find the line number to break inside main().
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self.line = line_number('main.c', '// Set break point at this line.')
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@add_test_categories(['pyapi'])
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@skipUnlessDarwin
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@unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in
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['x86_64'], "requires x86_64")
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@skipIfDarwinEmbedded # this test file assumes we're targetting an x86 system
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def test_sbdebugger_create_target_with_file_and_target_triple(self):
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"""Test the SBDebugger.CreateTargetWithFileAndTargetTriple() API."""
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# Invoke the default build rule.
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self.build()
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# Note that "testit" is a universal binary.
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exe = self.getBuildArtifact("testit")
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# Create a target by the debugger.
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target = self.dbg.CreateTargetWithFileAndTargetTriple(
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exe, "x86_64-apple-macosx10.10")
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self.assertTrue(target, VALID_TARGET)
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self.expect("image list -t -b", substrs=["x86_64-apple-macosx10.9.0 testit"])
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self.expect("target list", substrs=["testit", "arch=x86_64-apple-macosx10.10"])
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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@skipUnlessDarwin
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@unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in
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['x86_64'], "requires x86_64")
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@skipIfDarwinEmbedded # this test file assumes we're targetting an x86 system
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def test_process_launch_for_universal(self):
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"""Test process launch of a universal binary."""
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from lldbsuite.test.lldbutil import print_registers
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if not haswellOrLater():
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return
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# Invoke the default build rule.
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self.build()
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# Note that "testit" is a universal binary.
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exe = self.getBuildArtifact("testit")
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# By default, x86_64 is assumed if no architecture is specified.
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self.expect("file " + exe, CURRENT_EXECUTABLE_SET,
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startstr="Current executable set to ",
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substrs=["testit' (x86_64h)."])
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# Break inside the main.
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lldbutil.run_break_set_by_file_and_line(
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self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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# We should be able to launch the x86_64h executable.
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self.runCmd("run", RUN_SUCCEEDED)
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# Check whether we have a x86_64h process launched.
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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self.expect("image list -A -b", substrs=["x86_64h testit"])
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self.runCmd("continue")
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# Now specify x86_64 as the architecture for "testit".
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self.expect("file -a x86_64 " + exe, CURRENT_EXECUTABLE_SET,
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startstr="Current executable set to ",
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substrs=["testit' (x86_64)."])
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# Break inside the main.
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lldbutil.run_break_set_by_file_and_line(
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self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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# We should be able to launch the x86_64 executable as well.
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self.runCmd("run", RUN_SUCCEEDED)
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# Check whether we have a x86_64 process launched.
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# FIXME: This wrong. We are expecting x86_64, but spawning a
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# new process currently doesn't allow specifying a *sub*-architecture.
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# <rdar://problem/46101466>
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self.expect("image list -A -b", substrs=["x86_64h testit"])
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self.runCmd("continue")
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@skipUnlessDarwin
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@unittest2.skipUnless(hasattr(os, "uname") and os.uname()[4] in
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['x86_64'], "requires x86_64")
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@skipIfDarwinEmbedded # this test file assumes we're targetting an x86 system
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def test_process_attach_with_wrong_arch(self):
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"""Test that when we attach to a binary from the wrong fork of
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a universal binary, we fix up the ABI correctly."""
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if not haswellOrLater():
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return
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# Now keep the architecture at x86_64, but switch the binary
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# we launch to x86_64h, and make sure on attach we switch to
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# the correct architecture.
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# Invoke the default build rule.
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self.build()
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# Note that "testit" is a universal binary.
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exe = self.getBuildArtifact("testit")
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# Create a target by the debugger.
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target = self.dbg.CreateTargetWithFileAndTargetTriple(
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exe, "x86_64-apple-macosx")
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self.assertTrue(target, VALID_TARGET)
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self.expect("image list -A -b", substrs=["x86_64 testit"])
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bkpt = target.BreakpointCreateBySourceRegex(
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"sleep", lldb.SBFileSpec("main.c"))
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self.assertTrue(bkpt.IsValid(), "Valid breakpoint")
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self.assertTrue(
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bkpt.GetNumLocations() >= 1,
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"Our main breakpoint has locations.")
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popen = self.spawnSubprocess(exe, ["keep_waiting"])
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error = lldb.SBError()
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empty_listener = lldb.SBListener()
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process = target.AttachToProcessWithID(
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empty_listener, popen.pid, error)
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self.assertTrue(error.Success(), "Attached to process.")
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self.expect("image list -A -b", substrs=["x86_64h testit"])
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# It may seem odd to check the number of frames, but the bug
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# that motivated this test was that we eventually fixed the
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# architecture, but we left the ABI set to the original value.
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# In that case, if you asked the process for its architecture,
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# it would look right, but since the ABI was wrong,
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# backtracing failed.
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threads = lldbutil.continue_to_breakpoint(process, bkpt)
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self.assertEquals(len(threads), 1)
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thread = threads[0]
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self.assertTrue(
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thread.GetNumFrames() > 1,
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"We were able to backtrace.")
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