diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/compat/compat.exp')
| -rw-r--r-- | gcc/testsuite/g++.dg/compat/compat.exp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/compat/compat.exp b/gcc/testsuite/g++.dg/compat/compat.exp new file mode 100644 index 00000000000..1e13c102a50 --- /dev/null +++ b/gcc/testsuite/g++.dg/compat/compat.exp @@ -0,0 +1,137 @@ +# Copyright (C) 2002 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# This file was written by Janis Johnson, <janis187@us.ibm.com> + + +# Test interoperability of two compilers that follow the same ABI. +# +# Break simple tests into two pieces and see that they work when linked +# together. If an alternate compiler is specified then the two main +# pieces of each test are compiled with different compilers. The +# alternate compiler must be installed, and is specified by defining +# ALT_CXX_UNDER_TEST in the environment. + +if $tracelevel then { + strace $tracelevel +} + +global GXX_UNDER_TEST +global ld_library_path + +# Load procedures from common libraries. +load_lib standard.exp +load_lib g++.exp + +# +# compat-fix-library-path -- switch LD_LIBRARY_PATH +# +proc compat-fix-library-path { } { + global ld_library_path + + # See comments in lib/g++.exp for why this is needed. + setenv LD_LIBRARY_PATH $ld_library_path + setenv SHLIB_PATH $ld_library_path + setenv LD_LIBRARYN32_PATH $ld_library_path + setenv LD_LIBRARY64_PATH $ld_library_path +} + +# +# compat-use-alt-compiler -- make the alternate compiler the default +# +proc compat-use-alt-compiler { } { + global GXX_UNDER_TEST ALT_CXX_UNDER_TEST + global CXXFLAGS + global ALWAYS_CXXFLAGS + global ld_library_path alt_ld_library_path + global same_alt + + # We don't need to do this if the alternate compiler is actually + # the same as the compiler under test. + if { $same_alt == 0 } then { + set GXX_UNDER_TEST $ALT_CXX_UNDER_TEST + set CXXFLAGS "" + set ALWAYS_CXXFLAGS "" + set ld_library_path $alt_ld_library_path + compat-fix-library-path + } +} + +# +# compat-use-tst-compiler -- make compiler under test the default +# +proc compat-use-tst-compiler { } { + global GXX_UNDER_TEST save_gxx_under_test + global CXXFLAGS save_cxxflags + global ALWAYS_CXXFLAGS save_always_cxxflags + global ld_library_path save_ld_library_path + global same_alt + + # We don't need to do this if the alternate compiler is actually + # the same as the compiler under test. + + if { $same_alt == 0 } then { + set GXX_UNDER_TEST $save_gxx_under_test + set CXXFLAGS $save_cxxflags + set ALWAYS_CXXFLAGS $save_always_cxxflags + set ld_library_path $save_ld_library_path + compat-fix-library-path + } +} + +# Load the language-independent compabibility support procedures. +# This must be done after the compat-use-*-compiler definitions. +load_lib compat.exp + +g++_init + +# Save variables for the C++ compiler under test, which each test will +# change a couple of times. This must be done after calling g++-init. +set save_gxx_under_test $GXX_UNDER_TEST +set save_cxxflags $CXXFLAGS +set save_always_cxxflags $ALWAYS_CXXFLAGS +set save_ld_library_path $ld_library_path + +# Find out whether there is an alternate compiler to test. If the +# variable is defined but is set to "same", that means we use the same +# compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS +# are different. +set use_alt 0 +set same_alt 0 +set alt_ld_library_path "." +if [info exists ALT_CXX_UNDER_TEST] then { + set use_alt 1 + if [string match "same" $ALT_CXX_UNDER_TEST] then { + set same_alt 1 + } else { + if [info exists ALT_LD_LIBRARY_PATH] then { + append alt_ld_library_path ":${ALT_LD_LIBRARY_PATH}" + } + } +} + +# Main loop. +foreach src [lsort [find $srcdir/$subdir *_main.C]] { + # If we're only testing specific files and this isn't one of them, skip it. + if ![runtest_file_p $runtests $src] then { + continue + } + + compat-execute $src $use_alt +} + +# Restore the original compiler under test. +compat-use-tst-compiler |