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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
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llvm-svn: 280751
132 lines
4.0 KiB
Python
132 lines
4.0 KiB
Python
"""Benchmark the turnaround time starting a debugger and run to the breakpont with lldb vs. gdb."""
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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.lldbbench import *
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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 configuration
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from lldbsuite.test import lldbutil
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class CompileRunToBreakpointBench(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.function = 'Driver::MainLoop()'
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self.count = 3
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self.lldb_avg = None
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self.gdb_avg = None
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@benchmarks_test
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@no_debug_info_test
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@expectedFailureAll(
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oslist=["windows"],
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bugnumber="llvm.org/pr22274: need a pexpect replacement for windows")
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def test_run_lldb_then_gdb(self):
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"""Benchmark turnaround time with lldb vs. gdb."""
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print()
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self.run_lldb_turnaround(self.exe, self.function, self.count)
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print("lldb turnaround benchmark:", self.stopwatch)
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self.run_gdb_turnaround(self.exe, self.function, self.count)
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print("gdb turnaround benchmark:", self.stopwatch)
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print("lldb_avg/gdb_avg: %f" % (self.lldb_avg / self.gdb_avg))
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def run_lldb_turnaround(self, exe, function, count):
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import pexpect
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def run_one_round():
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn(
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'%s %s %s' %
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(lldbtest_config.lldbExec, self.lldbOption, exe))
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('breakpoint set -F %s' % function)
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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# Set self.child_prompt, which is "(lldb) ".
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self.child_prompt = '(lldb) '
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count + 1):
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# Ignore the first invoke lldb and run to the breakpoint turnaround
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# time.
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if i == 0:
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run_one_round()
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else:
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with self.stopwatch:
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run_one_round()
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self.child.sendline('quit')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.lldb_avg = self.stopwatch.avg()
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self.child = None
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def run_gdb_turnaround(self, exe, function, count):
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import pexpect
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def run_one_round():
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('gdb --nx %s' % exe)
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('break %s' % function)
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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# Set self.child_prompt, which is "(gdb) ".
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self.child_prompt = '(gdb) '
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count + 1):
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# Ignore the first invoke lldb and run to the breakpoint turnaround
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# time.
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if i == 0:
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run_one_round()
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else:
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with self.stopwatch:
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run_one_round()
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self.child.sendline('quit')
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self.child.expect_exact('The program is running. Exit anyway?')
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self.child.sendline('y')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.gdb_avg = self.stopwatch.avg()
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self.child = None
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