66d362e9bf
inferior program for the lldb debugger to operate on. The fixed lldb executable corresponds to r142902. Plus some minor modifications to the test benchmark to conform to way bench.py is meant to be invoked. llvm-svn: 143075
79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
"""Test lldb's stepping speed."""
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import os, sys
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import unittest2
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import lldb
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import pexpect
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from lldbbench import *
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class SteppingSpeedBench(BenchBase):
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mydir = os.path.join("benchmarks", "stepping")
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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 = self.lldbHere
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if lldb.bmBreakpointSpec:
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self.break_spec = lldb.bmBreakpointSpec
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else:
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self.break_spec = '-n main'
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self.count = lldb.bmIterationCount
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if self.count <= 0:
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self.count = 50
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#print "self.exe=%s" % self.exe
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#print "self.break_spec=%s" % self.break_spec
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@benchmarks_test
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def test_run_lldb_steppings(self):
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"""Test lldb steppings on a large executable."""
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print
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self.run_lldb_steppings(self.exe, self.break_spec, self.count)
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print "lldb stepping benchmark:", self.stopwatch
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def run_lldb_steppings(self, exe, break_spec, count):
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# Set self.child_prompt, which is "(lldb) ".
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self.child_prompt = '(lldb) '
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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 %s %s' % (self.lldbHere, 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 %s' % break_spec)
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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('next') # Aka 'thread step-over'.
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child.expect_exact(prompt)
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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.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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