gdb/testsuite/gdb.perf/skip-prologue.py

   1 # Copyright (C) 2013-2020 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 # This test case is to test the speed of GDB when it is analyzing the
  17 # function prologue.
  18
  19 from perftest import perftest
  20
  21 class SkipPrologue(perftest.TestCaseWithBasicMeasurements):
  22     def __init__(self, count):
  23         super(SkipPrologue, self).__init__("skip-prologue")
  24         self.count = count
  25
  26     def _test(self):
  27         for _ in range(1, self.count):
  28             # Insert breakpoints on function f1 and f2.
  29             bp1 = gdb.Breakpoint("f1")
  30             bp2 = gdb.Breakpoint("f2")
  31             # Remove them.
  32             bp1.delete()
  33             bp2.delete()
  34
  35     def warm_up(self):
  36         self._test()
  37
  38     def execute_test(self):
  39         for i in range(1, 4):
  40             gdb.execute("set code-cache off")
  41             gdb.execute("set code-cache on")
  42             self.measure.measure(self._test, i)