1 # Copyright (C) 2002-2024 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 3 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 GCC; see the file COPYING3. If not see
15 # <http://www.gnu.org/licenses/>.
17 # This file was written by Jakub Jelinek, <jakub@redhat.com>
18 # Based on compat.exp writte by Janis Johnson, <janis187@us.ibm.com>
21 # Test interoperability of two compilers that follow the same ABI.
23 # Break simple tests into two pieces and see that they work when linked
24 # together. If an alternate compiler is specified then the two main
25 # pieces of each test are compiled with different compilers. The
26 # alternate compiler must be installed, and is specified by defining
27 # ALT_CC_UNDER_TEST in the environment.
29 # struct-layout-1 are generated structure layout interoperability tests,
30 # so a generator first needs to be compiled on host, run there and the
31 # generated tests then compiled on build and executed on target.
38 global compat_save_gcc_under_test
40 global compat_same_alt
41 global compat_have_dfp
43 # Load procedures from common libraries.
46 load_lib target-libpath.exp
48 # Load the language-dependent compabibility support procedures.
51 # Load the language-independent compabibility support procedures.
56 # Save variables for the C compiler under test, which each test will
57 # change a couple of times. This must be done after calling gcc-init.
58 set compat_save_gcc_under_test $GCC_UNDER_TEST
60 # Define an identifier for use with this suite to avoid name conflicts
61 # with other compat tests running at the same time.
64 # Find out whether there is an alternate compiler to test. If the
65 # variable is defined but is set to "same", that means we use the same
66 # compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS
71 if [info exists ALT_CC_UNDER_TEST] then {
73 if [string match "same" $ALT_CC_UNDER_TEST] then {
80 if { $compat_have_dfp == 0 } {
81 set skip_dfp "-DSKIP_DECIMAL_FLOAT"
86 set tstobjdir "$tmpdir/gcc.dg-struct-layout-1"
87 set generator "$tmpdir/gcc.dg-struct-layout-1_generate.exe"
89 set generator_src "$srcdir/$subdir/struct-layout-1_generate.c"
90 set generator_src "$generator_src $srcdir/$subdir/generate-random.c"
91 set generator_src "$generator_src $srcdir/$subdir/generate-random_r.c"
92 set generator_cmd "-o $generator $skip_dfp $generator_src"
94 # Temporarily switch to the environment for the host compiler.
95 restore_ld_library_path_env_vars
96 set status [remote_exec build "$HOSTCC $HOSTCFLAGS $generator_cmd"]
97 set status [lindex $status 0]
98 set_ld_library_path_env_vars
100 if { $status == 0 } then {
101 file delete -force $tstobjdir
102 file mkdir $tstobjdir
103 set generator_args "-s $srcdir/$subdir -d $tstobjdir"
104 if [info exists env(RUN_ALL_COMPAT_TESTS) ] then {
105 set generator_args "$generator_args -n 15000"
107 if [check_effective_target_short_enums] then {
108 set generator_args "-e $generator_args"
110 set status [remote_exec host "$generator $generator_args"]
111 set status [lindex $status 0]
112 if { $status == 0 } then {
113 foreach src [lsort [find $tstobjdir *_main.c]] {
114 # If we're only testing specific files and this isn't one
116 if ![runtest_file_p $runtests $src] then {
120 compat-execute $src $sid $compat_use_alt
123 warning "Could not execute gcc.dg/compat/struct-layout-1 generator"
126 warning "Could not compile gcc.dg/compat/struct-layout-1 generator"
129 # Restore the original compiler under test.
130 compat-use-tst-compiler