forked from OSchip/llvm-project
98 lines
3.5 KiB
Python
98 lines
3.5 KiB
Python
"""Disassemble lldb's Driver::MainLoop() functions comparing Xcode 4.1 vs. 4.2's gdb."""
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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.decorators import *
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from lldbsuite.test.lldbbench 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 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 = lldbtest_config.lldbExec
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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 = 5
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@benchmarks_test
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@no_debug_info_test
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@expectedFailureAll(oslist=["windows"], bugnumber="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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@no_debug_info_test
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@expectedFailureAll(oslist=["windows"], bugnumber="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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