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

   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 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 $testfile.exp
  31
  32 # make check-perf RUNTESTFLAGS='skip-prologue.exp SKIP_PROLOGUE_COUNT=500'
  33 if ![info exists SKIP_PROLOGUE_COUNT] {
  34     set SKIP_PROLOGUE_COUNT 500
  35 }
  36
  37 PerfTest::assemble {
  38     global srcdir subdir srcfile binfile
  39
  40     if [info exists COMPILE] {
  41         set opts {debug}
  42     } else {
  43         set opts {nodebug}
  44     }
  45
  46     if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable $opts] != "" } {
  47         untested "failed to compile"
  48         return -1
  49     }
  50
  51     return 0
  52 } {
  53     global binfile
  54     global gdb_prompt
  55
  56     clean_restart $binfile
  57
  58     if ![runto_main] {
  59         fail "can't run to main"
  60         return -1
  61     }
  62     return 0
  63 } {
  64     global SKIP_PROLOGUE_COUNT
  65
  66     set test "run"
  67     gdb_test_multiple "python SkipPrologue\($SKIP_PROLOGUE_COUNT\).run()" $test {
  68         -re "Breakpoint $decimal at \[^\n\]*\n" {
  69             # GDB prints some messages on breakpoint creation.
  70             # Consume the output to avoid internal buffer full.
  71             exp_continue
  72         }
  73         -re ".*$gdb_prompt $" {
  74             pass $test
  75         }
  76     }
  77     return 0
  78 }