mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 14:00:30 +00:00
143 lines
4.7 KiB
Bash
143 lines
4.7 KiB
Bash
#! /bin/sh
|
|
# Copyright (C) 2016-2024 Free Software Foundation, Inc.
|
|
# This file is part of the GNU C Library.
|
|
#
|
|
# The GNU C Library is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 2.1 of the License, or (at your option) any later version.
|
|
#
|
|
# The GNU C Library is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
# Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with the GNU C Library; if not, see
|
|
# <https://www.gnu.org/licenses/>.
|
|
|
|
# For each installed header, confirm that it's possible to compile a
|
|
# file that includes that header and does nothing else, in several
|
|
# different compilation modes.
|
|
|
|
# These compilation switches assume GCC or compatible, which is probably
|
|
# fine since we also assume that when _building_ glibc.
|
|
c_modes="-std=c89 -std=gnu89 -std=c11 -std=gnu11"
|
|
cxx_modes="-std=c++98 -std=gnu++98 -std=c++11 -std=gnu++11"
|
|
|
|
# An exhaustive test of feature selection macros would take far too long.
|
|
# These are probably the most commonly used three.
|
|
lib_modes="-D_DEFAULT_SOURCE=1 -D_GNU_SOURCE=1 -D_XOPEN_SOURCE=700"
|
|
|
|
# Also check for fortify modes, since it might be enabled as default. The
|
|
# maximum value to be checked is define by maximum_fortify argument.
|
|
fortify_modes=""
|
|
|
|
if [ $# -lt 3 ]; then
|
|
echo "usage: $0 c|c++ maximum_fortify \"compile command\" header header header..." >&2
|
|
exit 2
|
|
fi
|
|
case "$1" in
|
|
(c)
|
|
lang_modes="$c_modes"
|
|
cih_test_c=$(mktemp ${TMPDIR-/tmp}/cih_test_XXXXXX.c)
|
|
;;
|
|
(c++)
|
|
lang_modes="$cxx_modes"
|
|
cih_test_c=$(mktemp ${TMPDIR-/tmp}/cih_test_XXXXXX.cc)
|
|
;;
|
|
(*)
|
|
echo "usage: $0 c|c++ \"compile command\" header header header..." >&2
|
|
exit 2;;
|
|
esac
|
|
shift
|
|
fortify_modes=$(seq -s' ' 1 $1)
|
|
shift
|
|
cc_cmd="$1"
|
|
shift
|
|
trap "rm -f '$cih_test_c'" 0
|
|
|
|
failed=0
|
|
is_x86_64=unknown
|
|
for header in "$@"; do
|
|
# Skip various headers for which this test gets a false failure.
|
|
case "$header" in
|
|
# bits/* are not meant to be included directly and usually #error
|
|
# out if you try it.
|
|
# regexp.h is a stub containing only an #error.
|
|
# Sun RPC's .x files are traditionally installed in
|
|
# $prefix/include/rpcsvc, but they are not C header files.
|
|
(bits/* | regexp.h | rpcsvc/*.x)
|
|
continue;;
|
|
|
|
# All extant versions of sys/elf.h contain nothing more than an
|
|
# exhortation (either a #warning or an #error) to use sys/procfs.h
|
|
# instead, plus an inclusion of that header.
|
|
(sys/elf.h)
|
|
continue;;
|
|
|
|
# Skip Fortran headers.
|
|
(finclude/*)
|
|
continue;;
|
|
|
|
# sys/vm86.h is "unsupported on x86-64" and errors out on that target.
|
|
(sys/vm86.h)
|
|
case "$is_x86_64" in
|
|
(yes) continue;;
|
|
(no) ;;
|
|
(unknown)
|
|
cat >"$cih_test_c" <<EOF
|
|
#if defined __x86_64__ && __x86_64__
|
|
#error "is x86-64"
|
|
#endif
|
|
EOF
|
|
if $cc_cmd -fsyntax-only "$cih_test_c" > /dev/null 2>&1
|
|
then
|
|
is_x86_64=no
|
|
else
|
|
is_x86_64=yes
|
|
continue
|
|
fi
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
echo :: "$header"
|
|
for lang_mode in "" $lang_modes; do
|
|
for lib_mode in "" $lib_modes; do
|
|
for fortify_mode in "" $fortify_modes; do
|
|
if [ -z "$lib_mode" ]; then
|
|
expanded_lib_mode='/* default library mode */'
|
|
else
|
|
expanded_lib_mode=$(echo : $lib_mode | \
|
|
sed 's/^: -D/#define /; s/=/ /')
|
|
fi
|
|
if [ ! -z $fortify_mode ]; then
|
|
fortify_mode="#define _FORTIFY_SOURCE $fortify_mode"
|
|
fi
|
|
echo :::: $lang_mode $lib_mode $fortify_mode
|
|
cat >"$cih_test_c" <<EOF
|
|
/* These macros may have been defined on the command line. They are
|
|
inappropriate for this test. */
|
|
#undef _LIBC
|
|
#undef _GNU_SOURCE
|
|
#undef _FORTIFY_SOURCE
|
|
$fortify_mode
|
|
/* The library mode is selected here rather than on the command line to
|
|
ensure that this selection wins. */
|
|
$expanded_lib_mode
|
|
#include <$header>
|
|
int avoid_empty_translation_unit;
|
|
EOF
|
|
if $cc_cmd -finput-charset=ascii -fsyntax-only $lang_mode \
|
|
"$cih_test_c" 2>&1
|
|
then :
|
|
else failed=1
|
|
fi
|
|
done
|
|
done
|
|
done
|
|
done
|
|
exit $failed
|