gdb/testsuite/gdb.perf/single-step.exp

   1 # Copyright (C) 2013-2021 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 doing singe step.
  17 # There is one parameter in this test:
  18 #  - SINGLE_STEP_COUNT is the number of single step GDB performs.
  19
  20 load_lib perftest.exp
  21
  22 if [skip_perf_tests] {
  23     return 0
  24 }
  25
  26 standard_testfile .c
  27 set executable $testfile
  28 set expfile $testfile.exp
  29
  30 # make check-perf RUNTESTFLAGS='single-step.exp SINGLE_STEP_COUNT=300'
  31 if ![info exists SINGLE_STEP_COUNT] {
  32     set SINGLE_STEP_COUNT 1000
  33 }
  34
  35 PerfTest::assemble {
  36     global srcdir subdir srcfile binfile
  37
  38     if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable {debug}] != "" } {
  39         return -1
  40     }
  41     return 0
  42 } {
  43     global binfile
  44     clean_restart $binfile
  45
  46     if ![runto_main] {
  47         fail "can't run to main"
  48         return -1
  49     }
  50     return 0
  51 } {
  52     global SINGLE_STEP_COUNT
  53
  54     gdb_test_no_output "python SingleStep\(${SINGLE_STEP_COUNT}\).run()"
  55     # Terminate the loop.
  56     gdb_test "set variable flag = 0"
  57     return 0
  58 }