gnu/dist/gcc4/gcc/testsuite/g++.dg/compat/struct-layout-1.exp

   1 # Copyright (C) 2002, 2003, 2004, 2005 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 2 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, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16 # 02110-1301, USA.
  17 #
  18 # This file was written by Jakub Jelinek, <jakub@redhat.com>
  19 # Based on compat.exp writte by Janis Johnson, <janis187@us.ibm.com>
  20
  21
  22 # Test interoperability of two compilers that follow the same ABI.
  23 #
  24 # Break simple tests into two pieces and see that they work when linked
  25 # together.  If an alternate compiler is specified then the two main
  26 # pieces of each test are compiled with different compilers.  The
  27 # alternate compiler must be installed, and is specified by defining
  28 # ALT_CXX_UNDER_TEST in the environment.
  29 #
  30 # struct-layout-1 are generated structure layout interoperability tests,
  31 # so a generator first needs to be compiled on host, run there and the
  32 # generated tests then compiled on build and executed on target.
  33
  34 if $tracelevel then {
  35     strace $tracelevel
  36 }
  37
  38 global GXX_UNDER_TEST
  39 global ld_library_path
  40
  41 # Load procedures from common libraries.
  42 load_lib standard.exp
  43 load_lib g++.exp
  44 load_lib target-libpath.exp
  45
  46 #
  47 # compat-use-alt-compiler -- make the alternate compiler the default
  48 #
  49 proc compat-use-alt-compiler { } {
  50     global GXX_UNDER_TEST ALT_CXX_UNDER_TEST
  51     global CXXFLAGS
  52     global ALWAYS_CXXFLAGS
  53     global ld_library_path alt_ld_library_path
  54     global same_alt
  55
  56     # We don't need to do this if the alternate compiler is actually
  57     # the same as the compiler under test.
  58     if { $same_alt == 0 } then {
  59         set GXX_UNDER_TEST $ALT_CXX_UNDER_TEST
  60         set CXXFLAGS ""
  61         set ALWAYS_CXXFLAGS ""
  62         set ld_library_path $alt_ld_library_path
  63         set_ld_library_path_env_vars
  64     }
  65 }
  66
  67 #
  68 # compat-use-tst-compiler -- make compiler under test the default
  69 #
  70 proc compat-use-tst-compiler { } {
  71     global GXX_UNDER_TEST save_gxx_under_test
  72     global CXXFLAGS save_cxxflags
  73     global ALWAYS_CXXFLAGS save_always_cxxflags
  74     global ld_library_path save_ld_library_path
  75     global same_alt
  76
  77     # We don't need to do this if the alternate compiler is actually
  78     # the same as the compiler under test.
  79
  80     if { $same_alt == 0 } then {
  81         set GXX_UNDER_TEST $save_gxx_under_test
  82         set CXXFLAGS $save_cxxflags
  83         set ALWAYS_CXXFLAGS $save_always_cxxflags
  84         set ld_library_path $save_ld_library_path
  85         set_ld_library_path_env_vars
  86     }
  87 }
  88
  89 # Load the language-independent compabibility support procedures.
  90 # This must be done after the compat-use-*-compiler definitions.
  91 load_lib compat.exp
  92
  93 g++_init
  94
  95 # Save variables for the C++ compiler under test, which each test will
  96 # change a couple of times.  This must be done after calling g++-init.
  97 set save_gxx_under_test $GXX_UNDER_TEST
  98 set save_cxxflags $CXXFLAGS
  99 set save_always_cxxflags $ALWAYS_CXXFLAGS
 100 set save_ld_library_path $ld_library_path
 101
 102 # Define an identifier for use with this suite to avoid name conflicts
 103 # with other compat tests running at the same time.
 104 set sid "cp_compat"
 105
 106 # Find out whether there is an alternate compiler to test.  If the
 107 # variable is defined but is set to "same", that means we use the same
 108 # compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS
 109 # are different.
 110 set use_alt 0
 111 set same_alt 0
 112 set alt_ld_library_path "."
 113 if [info exists ALT_CXX_UNDER_TEST] then {
 114     set use_alt 1
 115     if [string match "same" $ALT_CXX_UNDER_TEST] then {
 116         set same_alt 1
 117     } else {
 118         if [info exists ALT_LD_LIBRARY_PATH] then {
 119             append alt_ld_library_path ":${ALT_LD_LIBRARY_PATH}"
 120         }
 121     }
 122 }
 123
 124 set tstobjdir "$tmpdir/g++.dg-struct-layout-1"
 125 set generator "$tmpdir/g++.dg-struct-layout-1_generate"
 126
 127 set generator_src "$srcdir/$subdir/struct-layout-1_generate.c"
 128 set generator_src "$generator_src $srcdir/$subdir/../../gcc.dg/compat/generate-random.c"
 129 set generator_src "$generator_src $srcdir/$subdir/../../gcc.dg/compat/generate-random_r.c"
 130 set generator_cmd "-o $generator $generator_src"
 131
 132 set status [remote_exec host "$HOSTCC $HOSTCFLAGS $generator_cmd"]
 133 set status [lindex $status 0]
 134 if { $status == 0 } then {
 135     file delete -force $tstobjdir
 136     file mkdir $tstobjdir
 137     set generator_args "-s $srcdir/$subdir -d $tstobjdir"
 138     if [info exists env(RUN_ALL_COMPAT_TESTS) ] then {
 139         set generator_args "$generator_args -n 15000"
 140     }
 141     if [check_effective_target_short_enums] then {
 142         set generator_args "-e $generator_args"
 143     }
 144     set status [remote_exec host "$generator $generator_args"]
 145     set status [lindex $status 0]
 146     if { $status == 0 } then {
 147         foreach src [lsort [find $tstobjdir *_main.C]] {
 148             # If we're only testing specific files and this isn't one
 149             # of them, skip it.
 150             if ![runtest_file_p $runtests $src] then {
 151                 continue
 152             }
 153
 154             compat-execute $src $sid $use_alt
 155         }
 156     } else {
 157         warning "Could not execute g++.dg/compat/struct-layout-1 generator"
 158     }
 159 } else {
 160     warning "Could not compile g++.dg/compat/struct-layout-1 generator"
 161 }
 162
 163 # Restore the original compiler under test.
 164 compat-use-tst-compiler