Home | History | Annotate | Line # | Download | only in gdb.perf 
      1 # Copyright (C) 2015-2024 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 
     20 from perftest import measure, perftest, utils
     21 
     22 
     23 class NullLookup(perftest.TestCaseWithBasicMeasurements):
     24     def __init__(self, name, run_names, binfile):
     25         # We want to measure time in this test.
     26         super(NullLookup, self).__init__(name)
     27         self.run_names = run_names
     28         self.binfile = binfile
     29 
     30     def warm_up(self):
     31         pass
     32 
     33     def execute_test(self):
     34         for run in self.run_names:
     35             this_run_binfile = "%s-%s" % (self.binfile, utils.convert_spaces(run))
     36             utils.select_file(this_run_binfile)
     37             utils.runto_main()
     38             utils.safe_execute("mt expand-symtabs")
     39             iteration = 5
     40             while iteration > 0:
     41                 utils.safe_execute("mt flush symbol-cache")
     42                 func = lambda: utils.safe_execute("p symbol_not_found")
     43                 self.measure.measure(func, run)
     44                 iteration -= 1
     45