1 # Copyright (C) 2002, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
18 # This file was written by Jakub Jelinek, <jakub@redhat.com>
19 # Based on compat.exp writte by Janis Johnson, <janis187@us.ibm.com>
22 # Test interoperability of two compilers that follow the same ABI.
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.
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.
39 global ld_library_path
41 # Load procedures from common libraries.
44 load_lib target-libpath.exp
47 # compat-use-alt-compiler -- make the alternate compiler the default
49 proc compat-use-alt-compiler { } {
50 global GXX_UNDER_TEST ALT_CXX_UNDER_TEST
52 global ALWAYS_CXXFLAGS
53 global ld_library_path alt_ld_library_path
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
61 set ALWAYS_CXXFLAGS ""
62 set ld_library_path $alt_ld_library_path
63 set_ld_library_path_env_vars
68 # compat-use-tst-compiler -- make compiler under test the default
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
77 # We don't need to do this if the alternate compiler is actually
78 # the same as the compiler under test.
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
89 # Load the language-independent compabibility support procedures.
90 # This must be done after the compat-use-*-compiler definitions.
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
102 # Define an identifier for use with this suite to avoid name conflicts
103 # with other compat tests running at the same time.
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
112 set alt_ld_library_path "."
113 if [info exists ALT_CXX_UNDER_TEST] then {
115 if [string match "same" $ALT_CXX_UNDER_TEST] then {
118 if [info exists ALT_LD_LIBRARY_PATH] then {
119 append alt_ld_library_path ":${ALT_LD_LIBRARY_PATH}"
124 set tstobjdir "$tmpdir/g++.dg-struct-layout-1"
125 set generator "$tmpdir/g++.dg-struct-layout-1_generate"
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 $generator_src"
132 set status [remote_exec host "$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"
141 set status [remote_exec host "$generator $generator_args"]
142 set status [lindex $status 0]
143 if { $status == 0 } then {
144 foreach src [lsort [find $tstobjdir *_main.C]] {
145 # If we're only testing specific files and this isn't one
147 if ![runtest_file_p $runtests $src] then {
151 compat-execute $src $sid $use_alt
154 warning "Could not execute g++.dg/compat/struct-layout-1 generator"
157 warning "Could not compile g++.dg/compat/struct-layout-1 generator"
160 # Restore the original compiler under test.
161 compat-use-tst-compiler