1 # Copyright (C) 2002 Free Software Foundation, Inc.
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 # This file was written by Janis Johnson, <janis187@us.ibm.com>
20 # Test interoperability of two compilers that follow the same ABI.
22 # Break simple tests into two pieces and see that they work when linked
23 # together. If an alternate compiler is specified then the two main
24 # pieces of each test are compiled with different compilers. The
25 # alternate compiler must be installed, and is specified by defining
26 # ALT_CXX_UNDER_TEST in the environment.
33 global ld_library_path
35 # Load procedures from common libraries.
40 # compat-fix-library-path -- switch LD_LIBRARY_PATH
42 proc compat-fix-library-path { } {
43 global ld_library_path
45 # See comments in lib/g++.exp for why this is needed.
46 if {![is_remote target]} {
47 # See comments in lib/g++.exp for why this is needed.
48 setenv LD_LIBRARY_PATH $ld_library_path
49 setenv SHLIB_PATH $ld_library_path
50 setenv LD_LIBRARYN32_PATH $ld_library_path
51 setenv LD_LIBRARY64_PATH $ld_library_path
56 # compat-use-alt-compiler -- make the alternate compiler the default
58 proc compat-use-alt-compiler { } {
59 global GXX_UNDER_TEST ALT_CXX_UNDER_TEST
61 global ALWAYS_CXXFLAGS
62 global ld_library_path alt_ld_library_path
65 # We don't need to do this if the alternate compiler is actually
66 # the same as the compiler under test.
67 if { $same_alt == 0 } then {
68 set GXX_UNDER_TEST $ALT_CXX_UNDER_TEST
70 set ALWAYS_CXXFLAGS ""
71 set ld_library_path $alt_ld_library_path
72 compat-fix-library-path
77 # compat-use-tst-compiler -- make compiler under test the default
79 proc compat-use-tst-compiler { } {
80 global GXX_UNDER_TEST save_gxx_under_test
81 global CXXFLAGS save_cxxflags
82 global ALWAYS_CXXFLAGS save_always_cxxflags
83 global ld_library_path save_ld_library_path
86 # We don't need to do this if the alternate compiler is actually
87 # the same as the compiler under test.
89 if { $same_alt == 0 } then {
90 set GXX_UNDER_TEST $save_gxx_under_test
91 set CXXFLAGS $save_cxxflags
92 set ALWAYS_CXXFLAGS $save_always_cxxflags
93 set ld_library_path $save_ld_library_path
94 compat-fix-library-path
98 # Load the language-independent compabibility support procedures.
99 # This must be done after the compat-use-*-compiler definitions.
104 # Save variables for the C++ compiler under test, which each test will
105 # change a couple of times. This must be done after calling g++-init.
106 set save_gxx_under_test $GXX_UNDER_TEST
107 set save_cxxflags $CXXFLAGS
108 set save_always_cxxflags $ALWAYS_CXXFLAGS
109 set save_ld_library_path $ld_library_path
111 # Define an identifier for use with this suite to avoid name conflicts
112 # with other compat tests running at the same time.
115 # Find out whether there is an alternate compiler to test. If the
116 # variable is defined but is set to "same", that means we use the same
117 # compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS
121 set alt_ld_library_path "."
122 if [info exists ALT_CXX_UNDER_TEST] then {
124 if [string match "same" $ALT_CXX_UNDER_TEST] then {
127 if [info exists ALT_LD_LIBRARY_PATH] then {
128 append alt_ld_library_path ":${ALT_LD_LIBRARY_PATH}"
134 foreach src [lsort [find $srcdir/$subdir *_main.C]] {
135 # If we're only testing specific files and this isn't one of them, skip it.
136 if ![runtest_file_p $runtests $src] then {
140 compat-execute $src $sid $use_alt
143 # Restore the original compiler under test.
144 compat-use-tst-compiler