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This module was originally intended to be imported by top-level scripts to be able to find the LLDB packages and third party libraries. Packages themselves shouldn't need to import it, because by the time it gets into the package, the top-level script should have already done this. Indeed, it was just adding the same values to sys.path multiple times, so this patch is essentially no functional change. To make sure it doesn't get re-introduced, we also delete the `use_lldb_suite` module from `lldbsuite/test`, although the original copy still remains in `lldb/test` llvm-svn: 251963
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 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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