1# Copyright (C) 2015-2016 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16# Test handling of lookup of a symbol that doesn't exist. 17# Efficient handling of this case is important, and not just for typos. 18# Sometimes the debug info for the needed object isn't present. 19 20from perftest import perftest 21from perftest import measure 22from perftest import utils 23 24class NullLookup(perftest.TestCaseWithBasicMeasurements): 25 def __init__(self, name, run_names, binfile): 26 # We want to measure time in this test. 27 super(NullLookup, self).__init__(name) 28 self.run_names = run_names 29 self.binfile = binfile 30 31 def warm_up(self): 32 pass 33 34 def execute_test(self): 35 for run in self.run_names: 36 this_run_binfile = "%s-%s" % (self.binfile, 37 utils.convert_spaces(run)) 38 utils.select_file(this_run_binfile) 39 utils.runto_main() 40 utils.safe_execute("mt expand-symtabs") 41 iteration = 5 42 while iteration > 0: 43 utils.safe_execute("mt flush-symbol-cache") 44 func = lambda: utils.safe_execute("p symbol_not_found") 45 self.measure.measure(func, run) 46 iteration -= 1 47