gcc/testsuite/g++.dg/compat/struct-layout-1.exp

   1 # Copyright (C) 2002-2013 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 GCC; see the file COPYING3.  If not see
  15 # <http://www.gnu.org/licenses/>.
  16 #
  17 # This file was written by Jakub Jelinek, <jakub@redhat.com>
  18 # Based on compat.exp writte by Janis Johnson, <janis187@us.ibm.com>
  19
  20
  21 # Test interoperability of two compilers that follow the same ABI.
  22 #
  23 # Break simple tests into two pieces and see that they work when linked
  24 # together.  If an alternate compiler is specified then the two main
  25 # pieces of each test are compiled with different compilers.  The
  26 # alternate compiler must be installed, and is specified by defining
  27 # ALT_CXX_UNDER_TEST in the environment.
  28 #
  29 # struct-layout-1 are generated structure layout interoperability tests,
  30 # so a generator first needs to be compiled on host, run there and the
  31 # generated tests then compiled on build and executed on target.
  32
  33 if $tracelevel then {
  34     strace $tracelevel
  35 }
  36
  37 global GXX_UNDER_TEST
  38 global ld_library_path
  39
  40 # Load procedures from common libraries.
  41 load_lib standard.exp
  42 load_lib g++.exp
  43 load_lib target-libpath.exp
  44
  45 #
  46 # compat-use-alt-compiler -- make the alternate compiler the default
  47 #
  48 proc compat-use-alt-compiler { } {
  49     global GXX_UNDER_TEST ALT_CXX_UNDER_TEST
  50     global CXXFLAGS
  51     global ALWAYS_CXXFLAGS
  52     global ld_library_path alt_ld_library_path
  53     global same_alt
  54
  55     # We don't need to do this if the alternate compiler is actually
  56     # the same as the compiler under test.
  57     if { $same_alt == 0 } then {
  58         set GXX_UNDER_TEST $ALT_CXX_UNDER_TEST
  59         set CXXFLAGS ""
  60         set ALWAYS_CXXFLAGS ""
  61         set ld_library_path $alt_ld_library_path
  62         set_ld_library_path_env_vars
  63     }
  64 }
  65
  66 #
  67 # compat-use-tst-compiler -- make compiler under test the default
  68 #
  69 proc compat-use-tst-compiler { } {
  70     global GXX_UNDER_TEST save_gxx_under_test
  71     global CXXFLAGS save_cxxflags
  72     global ALWAYS_CXXFLAGS save_always_cxxflags
  73     global ld_library_path save_ld_library_path
  74     global same_alt
  75
  76     # We don't need to do this if the alternate compiler is actually
  77     # the same as the compiler under test.
  78
  79     if { $same_alt == 0 } then {
  80         set GXX_UNDER_TEST $save_gxx_under_test
  81         set CXXFLAGS $save_cxxflags
  82         set ALWAYS_CXXFLAGS $save_always_cxxflags
  83         set ld_library_path $save_ld_library_path
  84         set_ld_library_path_env_vars
  85     }
  86 }
  87
  88 # Load the language-independent compabibility support procedures.
  89 # This must be done after the compat-use-*-compiler definitions.
  90 load_lib compat.exp
  91
  92 g++_init
  93
  94 # Save variables for the C++ compiler under test, which each test will
  95 # change a couple of times.  This must be done after calling g++-init.
  96 set save_gxx_under_test $GXX_UNDER_TEST
  97 set save_cxxflags $CXXFLAGS
  98 set save_always_cxxflags $ALWAYS_CXXFLAGS
  99 set save_ld_library_path $ld_library_path
 100
 101 # Define an identifier for use with this suite to avoid name conflicts
 102 # with other compat tests running at the same time.
 103 set sid "cp_compat"
 104
 105 # Find out whether there is an alternate compiler to test.  If the
 106 # variable is defined but is set to "same", that means we use the same
 107 # compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS
 108 # are different.
 109 set use_alt 0
 110 set same_alt 0
 111 set alt_ld_library_path "."
 112 if [info exists ALT_CXX_UNDER_TEST] then {
 113     set use_alt 1
 114     if [string match "same" $ALT_CXX_UNDER_TEST] then {
 115         set same_alt 1
 116     } else {
 117         if [info exists ALT_LD_LIBRARY_PATH] then {
 118             append alt_ld_library_path ":${ALT_LD_LIBRARY_PATH}"
 119         }
 120     }
 121 }
 122
 123 set tstobjdir "$tmpdir/g++.dg-struct-layout-1"
 124 set generator "$tmpdir/g++.dg-struct-layout-1_generate.exe"
 125
 126 set generator_src "$srcdir/$subdir/struct-layout-1_generate.c"
 127 set generator_src "$generator_src $srcdir/$subdir/../../gcc.dg/compat/generate-random.c"
 128 set generator_src "$generator_src $srcdir/$subdir/../../gcc.dg/compat/generate-random_r.c"
 129 set generator_cmd "-o $generator $generator_src"
 130
 131 # Temporarily switch to the environment of the host compiler.
 132 restore_ld_library_path_env_vars
 133 set status [remote_exec build "$HOSTCC $HOSTCFLAGS $generator_cmd"]
 134 set status [lindex $status 0]
 135 set_ld_library_path_env_vars
 136 if { $status == 0 } then {
 137     file delete -force $tstobjdir
 138     file mkdir $tstobjdir
 139     set generator_args "-s $srcdir/$subdir -d $tstobjdir"
 140     if [info exists env(RUN_ALL_COMPAT_TESTS) ] then {
 141         set generator_args "$generator_args -n 15000"
 142     }
 143     if [check_effective_target_short_enums] then {
 144         set generator_args "-e $generator_args"
 145     }
 146     set status [remote_exec host "$generator $generator_args"]
 147     set status [lindex $status 0]
 148     if { $status == 0 } then {
 149         foreach src [lsort [find $tstobjdir *_main.C]] {
 150             # If we're only testing specific files and this isn't one
 151             # of them, skip it.
 152             if ![runtest_file_p $runtests $src] then {
 153                 continue
 154             }
 155
 156             compat-execute $src $sid $use_alt
 157         }
 158     } else {
 159         warning "Could not execute g++.dg/compat/struct-layout-1 generator"
 160     }
 161 } else {
 162     warning "Could not compile g++.dg/compat/struct-layout-1 generator"
 163 }
 164
 165 # Restore the original compiler under test.
 166 compat-use-tst-compiler