gdb/testsuite/gdb.perf/solib.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 performance of GDB when it is handling
  17 # the shared libraries of inferior are loaded and unloaded.
  18 # There are two parameters in this test:
  19 #  - SOLIB_COUNT is the number of shared libraries program will load
  20 #    and unload
  21 #  - SOLIB_DLCLOSE_REVERSED_ORDER controls the order of dlclose shared
  22 #    libraries.  If it is set, program dlclose shared libraries in a
  23 #    reversed order of loading.
  24
  25 load_lib perftest.exp
  26
  27 if [skip_perf_tests] {
  28     return 0
  29 }
  30
  31 standard_testfile .c
  32 set executable $testfile
  33 set expfile $testfile.exp
  34
  35 # make check-perf RUNTESTFLAGS='solib.exp SOLIB_COUNT=1024'
  36 if ![info exists SOLIB_COUNT] {
  37     set SOLIB_COUNT 128
  38 }
  39
  40 PerfTest::assemble {
  41     global SOLIB_COUNT
  42     global srcdir subdir srcfile binfile
  43
  44     for {set i 0} {$i < $SOLIB_COUNT} {incr i} {
  45
  46         # Produce source files.
  47         set libname "solib-lib$i"
  48         set src [standard_output_file $libname.c]
  49         set exe [standard_output_file $libname]
  50
  51         gdb_produce_source $src "int shr$i (void) {return 0;}"
  52
  53         # Compile.
  54         if { [gdb_compile_shlib $src $exe {debug}] != "" } {
  55             return -1
  56         }
  57
  58         # Delete object files to save some space.
  59         file delete [standard_output_file  "solib-lib$i.c.o"]
  60     }
  61
  62     set compile_flags {debug shlib_load}
  63     global SOLIB_DLCLOSE_REVERSED_ORDER
  64
  65     if [info exists SOLIB_DLCLOSE_REVERSED_ORDER] {
  66         lappend compile_flags "additional_flags=-DSOLIB_DLCLOSE_REVERSED_ORDER"
  67     }
  68
  69     if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable  $compile_flags] != "" } {
  70         return -1
  71     }
  72
  73     return 0
  74 } {
  75     global binfile
  76
  77     clean_restart $binfile
  78
  79     if ![runto_main] {
  80         fail "can't run to main"
  81         return -1
  82     }
  83     return 0
  84 } {
  85     global SOLIB_COUNT
  86
  87     gdb_test_no_output "python SolibLoadUnload\($SOLIB_COUNT\).run()"
  88     return 0
  89 }