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5e6efd3ec2
A non-ascii character in the installed headers leads now to:
error: failure to convert ascii to UTF-8
Such a finding in s390 specific fenv.h leads to fails in GCC testsuite.
See glibc commit 08aea89ef6.
Adding this gcc option also to our tests was proposed by Florian Weimer.
This change also found a hit in resource.h where now "microseconds" is used.
I've adjusted all the resource.h files.
I've used the following command to check for further hits in headers.
LC_ALL=C find -name "*.h" -exec grep -PHn "[\x80-\xFF]" {} \;
Tested on s390x and x86_64.
Reviewed-by: Zack Weinberg <zackw@panix.com>
135 lines
4.3 KiB
Bash
135 lines
4.3 KiB
Bash
#! /bin/sh
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# Copyright (C) 2016-2020 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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#
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# The GNU C Library 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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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <https://www.gnu.org/licenses/>.
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# For each installed header, confirm that it's possible to compile a
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# file that includes that header and does nothing else, in several
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# different compilation modes.
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# These compilation switches assume GCC or compatible, which is probably
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# fine since we also assume that when _building_ glibc.
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c_modes="-std=c89 -std=gnu89 -std=c11 -std=gnu11"
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cxx_modes="-std=c++98 -std=gnu++98 -std=c++11 -std=gnu++11"
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# An exhaustive test of feature selection macros would take far too long.
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# These are probably the most commonly used three.
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lib_modes="-D_DEFAULT_SOURCE=1 -D_GNU_SOURCE=1 -D_XOPEN_SOURCE=700"
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if [ $# -lt 3 ]; then
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echo "usage: $0 c|c++ \"compile command\" header header header..." >&2
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exit 2
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fi
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case "$1" in
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(c)
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lang_modes="$c_modes"
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cih_test_c=$(mktemp ${TMPDIR-/tmp}/cih_test_XXXXXX.c)
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;;
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(c++)
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lang_modes="$cxx_modes"
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cih_test_c=$(mktemp ${TMPDIR-/tmp}/cih_test_XXXXXX.cc)
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;;
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(*)
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echo "usage: $0 c|c++ \"compile command\" header header header..." >&2
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exit 2;;
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esac
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shift
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cc_cmd="$1"
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shift
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trap "rm -f '$cih_test_c'" 0
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failed=0
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is_x86_64=unknown
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for header in "$@"; do
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# Skip various headers for which this test gets a false failure.
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case "$header" in
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# bits/* are not meant to be included directly and usually #error
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# out if you try it.
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# regexp.h is a stub containing only an #error.
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# Sun RPC's .x files are traditionally installed in
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# $prefix/include/rpcsvc, but they are not C header files.
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(bits/* | regexp.h | rpcsvc/*.x)
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continue;;
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# All extant versions of sys/elf.h contain nothing more than an
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# exhortation (either a #warning or an #error) to use sys/procfs.h
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# instead, plus an inclusion of that header.
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(sys/elf.h)
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continue;;
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# Skip Fortran headers.
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(finclude/*)
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continue;;
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# sys/sysctl.h produces a deprecation warning and therefore
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# fails compilation with -Werror.
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(sys/sysctl.h)
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continue;;
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# sys/vm86.h is "unsupported on x86-64" and errors out on that target.
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(sys/vm86.h)
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case "$is_x86_64" in
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(yes) continue;;
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(no) ;;
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(unknown)
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cat >"$cih_test_c" <<EOF
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#if defined __x86_64__ && __x86_64__
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#error "is x86-64"
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#endif
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EOF
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if $cc_cmd -fsyntax-only "$cih_test_c" > /dev/null 2>&1
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then
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is_x86_64=no
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else
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is_x86_64=yes
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continue
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fi
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;;
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esac
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;;
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esac
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echo :: "$header"
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for lang_mode in "" $lang_modes; do
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for lib_mode in "" $lib_modes; do
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echo :::: $lang_mode $lib_mode
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if [ -z "$lib_mode" ]; then
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expanded_lib_mode='/* default library mode */'
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else
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expanded_lib_mode=$(echo : $lib_mode | \
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sed 's/^: -D/#define /; s/=/ /')
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fi
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cat >"$cih_test_c" <<EOF
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/* These macros may have been defined on the command line. They are
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inappropriate for this test. */
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#undef _LIBC
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#undef _GNU_SOURCE
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/* The library mode is selected here rather than on the command line to
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ensure that this selection wins. */
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$expanded_lib_mode
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#include <$header>
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int avoid_empty_translation_unit;
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EOF
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if $cc_cmd -finput-charset=ascii -fsyntax-only $lang_mode \
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"$cih_test_c" 2>&1
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then :
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else failed=1
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fi
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done
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done
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done
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exit $failed
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