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

   1 # Copyright (C) 2013-2016 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 # This test case is to test the performance of GDB when it analyzes the
  17 # function prologue.
  18 # There is one parameter in this test:
  19 # - SKIP_PROLOGUE_COUNT is the number that GDB inserts breakpoints on
  20 #   function f1 and f2 and removes them.
  21
  22 load_lib perftest.exp
  23
  24 if [skip_perf_tests] {
  25     return 0
  26 }
  27
  28 standard_testfile .c
  29 set executable $testfile
  30 set expfile $testfile.exp
  31
  32 # make check-perf RUNTESTFLAGS='skip-prologue.exp SKIP_PROLOGUE_COUNT=500'
  33 if ![info exists SKIP_PROLOGUE_COUNT] {
  34     set SKIP_PROLOGUE_COUNT 500
  35 }
  36
  37 PerfTest::assemble {
  38     global srcdir subdir srcfile binfile
  39
  40     if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable {debug}] != "" } {
  41         return -1
  42     }
  43
  44     return 0
  45 } {
  46     global binfile
  47     global gdb_prompt
  48
  49     clean_restart $binfile
  50
  51     if ![runto_main] {
  52         fail "Can't run to main"
  53         return -1
  54     }
  55     return 0
  56 } {
  57     global SKIP_PROLOGUE_COUNT
  58
  59     set test "run"
  60     gdb_test_multiple "python SkipPrologue\($SKIP_PROLOGUE_COUNT\).run()" $test {
  61         -re "Breakpoint $decimal at \[^\n\]*\n" {
  62             # GDB prints some messages on breakpoint creation.
  63             # Consume the output to avoid internal buffer full.
  64             exp_continue
  65         }
  66         -re ".*$gdb_prompt $" {
  67             pass $test
  68         }
  69     }
  70     return 0
  71 }