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"""Test lldb's stepping speed."""
from __future__ import print_function
import os, sys
import lldb
from lldbsuite.test.lldbbench import *
class RunHooksThenSteppingsBench(BenchBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
BenchBase.setUp(self)
self.count = lldb.bmIterationCount
if self.count <= 0:
self.count = 50
@benchmarks_test
@no_debug_info_test
@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
def test_lldb_runhooks_then_steppings(self):
"""Test lldb steppings on a large executable."""
print()
self.run_lldb_runhooks_then_steppings(self.count)
print("lldb stepping benchmark:", self.stopwatch)
def run_lldb_runhooks_then_steppings(self, count):
import pexpect
# Set self.child_prompt, which is "(lldb) ".
self.child_prompt = '(lldb) '
prompt = self.child_prompt
self.child = pexpect.spawn('%s %s' % (lldbtest_config.lldbExec, self.lldbOption))
self.child.expect_exact(prompt)
# So that the child gets torn down after the test.
child = self.child
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
#lldb.runHooks = ['process attach -n Mail']
# Perform the run hooks to bring lldb debugger to the desired state.
self.runHooks(child=child, child_prompt=prompt)
# Reset the stopwatch now.
self.stopwatch.reset()
for i in range(count):
with self.stopwatch:
# Step through the function.
child.sendline('next') # Aka 'thread step-over'.
child.expect_exact(prompt)
child.sendline('quit')
try:
self.child.expect(pexpect.EOF)
except:
pass
self.child = None
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