0c426319f6
At some point we will need to either provide a pexpect equivalent on Windows, or provide some other method of doing out-of-process tests. Even with a pexpect replacement, it may be worth re-evaluating some of these tests to see if they would be better served as in-process tests. The larger issue of coming up with a pexpect replacement on Windows is tracked in http://llvm.org/pr22274. llvm-svn: 226614
98 lines
3.4 KiB
Python
98 lines
3.4 KiB
Python
"""Disassemble lldb's Driver::MainLoop() functions comparing Xcode 4.1 vs. 4.2's gdb."""
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import os, sys
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import unittest2
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import lldb
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from lldbbench import *
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class XCode41Vs42GDBDisassembly(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.gdb_41_exe = '/Xcode41/usr/bin/gdb'
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self.gdb_42_exe = '/Developer/usr/bin/gdb'
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self.exe = self.lldbHere
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self.function = 'Driver::MainLoop()'
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self.gdb_41_avg = None
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self.gdb_42_avg = None
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self.count = lldb.bmIterationCount
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if self.count <= 0:
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self.count = 5
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@benchmarks_test
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@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
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def test_run_41_then_42(self):
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"""Test disassembly on a large function with 4.1 vs. 4.2's gdb."""
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print
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self.run_gdb_disassembly(self.gdb_41_exe, self.exe, self.function, self.count)
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print "4.1 gdb benchmark:", self.stopwatch
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self.gdb_41_avg = self.stopwatch.avg()
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self.run_gdb_disassembly(self.gdb_42_exe, self.exe, self.function, self.count)
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print "4.2 gdb benchmark:", self.stopwatch
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self.gdb_42_avg = self.stopwatch.avg()
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print "gdb_42_avg/gdb_41_avg: %f" % (self.gdb_42_avg/self.gdb_41_avg)
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@benchmarks_test
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@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
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def test_run_42_then_41(self):
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"""Test disassembly on a large function with 4.1 vs. 4.2's gdb."""
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print
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self.run_gdb_disassembly(self.gdb_42_exe, self.exe, self.function, self.count)
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print "4.2 gdb benchmark:", self.stopwatch
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self.gdb_42_avg = self.stopwatch.avg()
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self.run_gdb_disassembly(self.gdb_41_exe, self.exe, self.function, self.count)
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print "4.1 gdb benchmark:", self.stopwatch
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self.gdb_41_avg = self.stopwatch.avg()
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print "gdb_42_avg/gdb_41_avg: %f" % (self.gdb_42_avg/self.gdb_41_avg)
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def run_gdb_disassembly(self, gdb_exe_path, exe, function, count):
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import pexpect
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# Set self.child_prompt, which is "(gdb) ".
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self.child_prompt = '(gdb) '
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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('%s --nx %s' % (gdb_exe_path, 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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# 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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child.sendline('disassemble')
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child.expect_exact(prompt)
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child.sendline('next')
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child.expect_exact(prompt)
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child.sendline('quit')
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child.expect_exact('The program is running. Exit anyway?')
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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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if self.TraceOn():
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print "gdb disassembly benchmark:", str(self.stopwatch)
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self.child = None
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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