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95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
"""Test lldb's disassemblt speed. This bench deliberately attaches to an lldb
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inferior and traverses the stack for thread0 to arrive at frame with function
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'MainLoop'. It is important to specify an lldb executable as the inferior."""
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from __future__ import print_function
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import use_lldb_suite
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import os, sys
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import lldb
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from lldbsuite.test.lldbbench import *
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class AttachThenDisassemblyBench(BenchBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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BenchBase.setUp(self)
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if lldb.bmExecutable:
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self.exe = lldb.bmExecutable
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else:
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self.exe = lldbtest_config.lldbExec
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self.count = lldb.bmIterationCount
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if self.count <= 0:
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self.count = 10
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@benchmarks_test
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@no_debug_info_test
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def test_attach_then_disassembly(self):
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"""Attach to a spawned lldb process then run disassembly benchmarks."""
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print()
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self.run_lldb_attach_then_disassembly(self.exe, self.count)
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print("lldb disassembly benchmark:", self.stopwatch)
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def run_lldb_attach_then_disassembly(self, exe, count):
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target = self.dbg.CreateTarget(exe)
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# Spawn a new process and don't display the stdout if not in TraceOn() mode.
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import subprocess
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popen = subprocess.Popen([exe, self.lldbOption],
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stdout = open(os.devnull, 'w') if not self.TraceOn() else None)
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if self.TraceOn():
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print("pid of spawned process: %d" % popen.pid)
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# Attach to the launched lldb process.
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listener = lldb.SBListener("my.attach.listener")
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error = lldb.SBError()
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process = target.AttachToProcessWithID(listener, popen.pid, error)
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# Set thread0 as the selected thread, followed by the 'MainLoop' frame
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# as the selected frame. Then do disassembly on the function.
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thread0 = process.GetThreadAtIndex(0)
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process.SetSelectedThread(thread0)
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i = 0
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found = False
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for f in thread0:
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#print("frame#%d %s" % (i, f.GetFunctionName()))
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if "MainLoop" in f.GetFunctionName():
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found = True
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thread0.SetSelectedFrame(i)
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if self.TraceOn():
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print("Found frame#%d for function 'MainLoop'" % i)
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break
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i += 1
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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with self.stopwatch:
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# Disassemble the function.
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self.runCmd("disassemble -f")
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