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
136 lines
4.3 KiB
Python
136 lines
4.3 KiB
Python
"""Test evaluating expressions repeatedly comparing lldb against gdb."""
|
|
|
|
import os, sys
|
|
import unittest2
|
|
import lldb
|
|
from lldbbench import *
|
|
|
|
class RepeatedExprsCase(BenchBase):
|
|
|
|
mydir = TestBase.compute_mydir(__file__)
|
|
|
|
def setUp(self):
|
|
BenchBase.setUp(self)
|
|
self.source = 'main.cpp'
|
|
self.line_to_break = line_number(self.source, '// Set breakpoint here.')
|
|
self.lldb_avg = None
|
|
self.gdb_avg = None
|
|
self.count = lldb.bmIterationCount
|
|
if self.count <= 0:
|
|
self.count = 100
|
|
|
|
@benchmarks_test
|
|
@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
|
|
def test_compare_lldb_to_gdb(self):
|
|
"""Test repeated expressions with lldb vs. gdb."""
|
|
self.buildDefault()
|
|
self.exe_name = 'a.out'
|
|
|
|
print
|
|
self.run_lldb_repeated_exprs(self.exe_name, self.count)
|
|
print "lldb benchmark:", self.stopwatch
|
|
self.run_gdb_repeated_exprs(self.exe_name, self.count)
|
|
print "gdb benchmark:", self.stopwatch
|
|
print "lldb_avg/gdb_avg: %f" % (self.lldb_avg/self.gdb_avg)
|
|
|
|
def run_lldb_repeated_exprs(self, exe_name, count):
|
|
import pexpect
|
|
exe = os.path.join(os.getcwd(), exe_name)
|
|
|
|
# Set self.child_prompt, which is "(lldb) ".
|
|
self.child_prompt = '(lldb) '
|
|
prompt = self.child_prompt
|
|
|
|
# So that the child gets torn down after the test.
|
|
self.child = pexpect.spawn('%s %s %s' % (self.lldbExec, self.lldbOption, exe))
|
|
child = self.child
|
|
|
|
# Turn on logging for what the child sends back.
|
|
if self.TraceOn():
|
|
child.logfile_read = sys.stdout
|
|
|
|
child.expect_exact(prompt)
|
|
child.sendline('breakpoint set -f %s -l %d' % (self.source, self.line_to_break))
|
|
child.expect_exact(prompt)
|
|
child.sendline('run')
|
|
child.expect_exact(prompt)
|
|
expr_cmd1 = 'expr ptr[j]->point.x'
|
|
expr_cmd2 = 'expr ptr[j]->point.y'
|
|
|
|
# Reset the stopwatch now.
|
|
self.stopwatch.reset()
|
|
for i in range(count):
|
|
with self.stopwatch:
|
|
child.sendline(expr_cmd1)
|
|
child.expect_exact(prompt)
|
|
child.sendline(expr_cmd2)
|
|
child.expect_exact(prompt)
|
|
child.sendline('process continue')
|
|
child.expect_exact(prompt)
|
|
|
|
child.sendline('quit')
|
|
try:
|
|
self.child.expect(pexpect.EOF)
|
|
except:
|
|
pass
|
|
|
|
self.lldb_avg = self.stopwatch.avg()
|
|
if self.TraceOn():
|
|
print "lldb expression benchmark:", str(self.stopwatch)
|
|
self.child = None
|
|
|
|
def run_gdb_repeated_exprs(self, exe_name, count):
|
|
import pexpect
|
|
exe = os.path.join(os.getcwd(), exe_name)
|
|
|
|
# Set self.child_prompt, which is "(gdb) ".
|
|
self.child_prompt = '(gdb) '
|
|
prompt = self.child_prompt
|
|
|
|
# So that the child gets torn down after the test.
|
|
self.child = pexpect.spawn('gdb --nx %s' % exe)
|
|
child = self.child
|
|
|
|
# Turn on logging for what the child sends back.
|
|
if self.TraceOn():
|
|
child.logfile_read = sys.stdout
|
|
|
|
child.expect_exact(prompt)
|
|
child.sendline('break %s:%d' % (self.source, self.line_to_break))
|
|
child.expect_exact(prompt)
|
|
child.sendline('run')
|
|
child.expect_exact(prompt)
|
|
expr_cmd1 = 'print ptr[j]->point.x'
|
|
expr_cmd2 = 'print ptr[j]->point.y'
|
|
|
|
# Reset the stopwatch now.
|
|
self.stopwatch.reset()
|
|
for i in range(count):
|
|
with self.stopwatch:
|
|
child.sendline(expr_cmd1)
|
|
child.expect_exact(prompt)
|
|
child.sendline(expr_cmd2)
|
|
child.expect_exact(prompt)
|
|
child.sendline('continue')
|
|
child.expect_exact(prompt)
|
|
|
|
child.sendline('quit')
|
|
child.expect_exact('The program is running. Exit anyway?')
|
|
child.sendline('y')
|
|
try:
|
|
self.child.expect(pexpect.EOF)
|
|
except:
|
|
pass
|
|
|
|
self.gdb_avg = self.stopwatch.avg()
|
|
if self.TraceOn():
|
|
print "gdb expression benchmark:", str(self.stopwatch)
|
|
self.child = None
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import atexit
|
|
lldb.SBDebugger.Initialize()
|
|
atexit.register(lambda: lldb.SBDebugger.Terminate())
|
|
unittest2.main()
|