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*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
71 lines
2.4 KiB
Python
71 lines
2.4 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
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import sys
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbbench import *
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from lldbsuite.test.lldbtest 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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self.exe = lldbtest_config.lldbExec
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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()
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# mode.
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import subprocess
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popen = subprocess.Popen([exe, self.lldbOption], stdout=open(
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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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