1 # Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008
2 # Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with GCC; see the file COPYING3. If not see
16 # <http://www.gnu.org/licenses/>.
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.exe"
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 # Temporarily unset GCC_EXEC_PREFIX from environment, as that might
133 # confuse the $HOSTCC.
134 set orig_gcc_exec_prefix_saved 0
135 if [info exists env(GCC_EXEC_PREFIX)] {
136 set orig_gcc_exec_prefix "$env(GCC_EXEC_PREFIX)"
137 set orig_gcc_exec_prefix_saved 1
138 unsetenv GCC_EXEC_PREFIX
140 set status [remote_exec build "$HOSTCC $HOSTCFLAGS $generator_cmd"]
141 set status [lindex $status 0]
142 if { $orig_gcc_exec_prefix_saved } {
143 set orig_gcc_exec_prefix_saved 0
144 setenv GCC_EXEC_PREFIX "$orig_gcc_exec_prefix"
146 if { $status == 0 } then {
147 file delete -force $tstobjdir
148 file mkdir $tstobjdir
149 set generator_args "-s $srcdir/$subdir -d $tstobjdir"
150 if [info exists env(RUN_ALL_COMPAT_TESTS) ] then {
151 set generator_args "$generator_args -n 15000"
153 if [check_effective_target_short_enums] then {
154 set generator_args "-e $generator_args"
156 set status [remote_exec host "$generator $generator_args"]
157 set status [lindex $status 0]
158 if { $status == 0 } then {
159 foreach src [lsort [find $tstobjdir *_main.C]] {
160 # If we're only testing specific files and this isn't one
162 if ![runtest_file_p $runtests $src] then {
166 compat-execute $src $sid $use_alt
169 warning "Could not execute g++.dg/compat/struct-layout-1 generator"
172 warning "Could not compile g++.dg/compat/struct-layout-1 generator"
175 # Restore the original compiler under test.
176 compat-use-tst-compiler