# Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
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# Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# (at your option) any later version.
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#
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#
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# This program is distributed in the hope that it will be useful,
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# GNU General Public License for more details.
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#
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#
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# You should have received a copy of the GNU General Public License
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING3. If not see
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# along with GCC; see the file COPYING3. If not see
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# .
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# .
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#
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#
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# This file was written by Janis Johnson,
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# This file was written by Janis Johnson,
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# Test interoperability of two compilers that follow the same ABI.
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# Test interoperability of two compilers that follow the same ABI.
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#
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#
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# Break simple tests into two pieces and see that they work when linked
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# Break simple tests into two pieces and see that they work when linked
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# together. If an alternate compiler is specified then the two main
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# together. If an alternate compiler is specified then the two main
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# pieces of each test are compiled with different compilers. The
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# pieces of each test are compiled with different compilers. The
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# alternate compiler must be installed, and is specified by defining
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# alternate compiler must be installed, and is specified by defining
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# ALT_CC_UNDER_TEST in the environment.
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# ALT_CC_UNDER_TEST in the environment.
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if $tracelevel then {
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if $tracelevel then {
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strace $tracelevel
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strace $tracelevel
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}
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}
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global GCC_UNDER_TEST
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global GCC_UNDER_TEST
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global ALT_CC_UNDER_TEST
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global ALT_CC_UNDER_TEST
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global compat_save_gcc_under_test
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global compat_save_gcc_under_test
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global compat_use_alt
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global compat_use_alt
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global compat_same_alt
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global compat_same_alt
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global compat_have_dfp
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global compat_have_dfp
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# Load procedures from common libraries.
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# Load procedures from common libraries.
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load_lib standard.exp
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load_lib standard.exp
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load_lib gcc.exp
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load_lib gcc.exp
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# Load the language-dependent compatibility support procedures.
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# Load the language-dependent compatibility support procedures.
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load_lib c-compat.exp
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load_lib c-compat.exp
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# Load the language-independent compabibility support procedures.
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# Load the language-independent compabibility support procedures.
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load_lib compat.exp
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load_lib compat.exp
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gcc_init
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gcc_init
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# Save variables for the C compiler under test, which each test will
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# Save variables for the C compiler under test, which each test will
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# change a couple of times. This must be done after calling gcc-init.
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# change a couple of times. This must be done after calling gcc-init.
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set compat_save_gcc_under_test $GCC_UNDER_TEST
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set compat_save_gcc_under_test $GCC_UNDER_TEST
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# Define an identifier for use with this suite to avoid name conflicts
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# Define an identifier for use with this suite to avoid name conflicts
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# with other compat tests running at the same time.
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# with other compat tests running at the same time.
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set sid "c_compat"
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set sid "c_compat"
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# Find out whether there is an alternate compiler to test. If the
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# Find out whether there is an alternate compiler to test. If the
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# variable is defined but is set to "same", that means we use the same
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# variable is defined but is set to "same", that means we use the same
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# compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS
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# compiler twice, which is meaningful if the two parts of COMPAT_OPTIONS
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# are different.
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# are different.
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set compat_use_alt 0
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set compat_use_alt 0
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set compat_same_alt 0
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set compat_same_alt 0
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if [info exists ALT_CC_UNDER_TEST] then {
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if [info exists ALT_CC_UNDER_TEST] then {
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set compat_use_alt 1
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set compat_use_alt 1
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if [string match "same" $ALT_CC_UNDER_TEST] then {
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if [string match "same" $ALT_CC_UNDER_TEST] then {
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set compat_same_alt 1
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set compat_same_alt 1
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}
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}
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}
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}
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compat_setup_dfp
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compat_setup_dfp
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# Main loop.
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# Main loop.
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foreach src [lsort [find $srcdir/$subdir *_main.c]] {
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foreach src [lsort [find $srcdir/$subdir *_main.c]] {
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# If we're only testing specific files and this isn't one of them, skip it.
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# If we're only testing specific files and this isn't one of them, skip it.
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if ![runtest_file_p $runtests $src] then {
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if ![runtest_file_p $runtests $src] then {
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continue
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continue
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}
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}
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compat-execute $src $sid $compat_use_alt
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compat-execute $src $sid $compat_use_alt
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}
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}
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# Restore the original compiler under test.
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# Restore the original compiler under test.
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compat-use-tst-compiler
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compat-use-tst-compiler
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