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
90 lines
3.1 KiB
Python
90 lines
3.1 KiB
Python
"""Test lldb's startup delays creating a target, setting a breakpoint, and run to breakpoint stop."""
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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 StartupDelaysBench(BenchBase):
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mydir = os.path.join("benchmarks", "startup")
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def setUp(self):
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BenchBase.setUp(self)
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# Create self.stopwatch2 for measuring "set first breakpoint".
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# The default self.stopwatch is for "create fresh target".
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self.stopwatch2 = Stopwatch()
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# Create self.stopwatch3 for measuring "run to breakpoint".
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self.stopwatch3 = Stopwatch()
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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 = 30
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@benchmarks_test
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def test_startup_delay(self):
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"""Test start up delays creating a target, setting a breakpoint, and run to breakpoint stop."""
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print
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self.run_startup_delays_bench(self.exe, self.break_spec, self.count)
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print "lldb startup delay (create fresh target) benchmark:", self.stopwatch
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print "lldb startup delay (set first breakpoint) benchmark:", self.stopwatch2
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print "lldb startup delay (run to breakpoint) benchmark:", self.stopwatch3
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def run_startup_delays_bench(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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# Reset the stopwatchs now.
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self.stopwatch.reset()
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self.stopwatch2.reset()
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for i in range(count):
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('%s %s' % (self.lldbHere, self.lldbOption))
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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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with self.stopwatch:
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# Create a fresh target.
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child.sendline('file %s' % exe) # Aka 'target create'.
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child.expect_exact(prompt)
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with self.stopwatch2:
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# Read debug info and set the first breakpoint.
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child.sendline('breakpoint set %s' % break_spec)
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child.expect_exact(prompt)
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with self.stopwatch3:
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# Run to the breakpoint just set.
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child.sendline('run')
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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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# The test is about to end and if we come to here, the child process has
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# been terminated. Mark it so.
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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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