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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI="7"
inherit flag-o-matic toolchain-funcs
if [[ ${PV} == "9999" ]] ; then
EGIT_REPO_URI="https://sourceware.org/git/newlib-cygwin.git"
inherit git-r3
else
SRC_URI="ftp://sourceware.org/pub/newlib/${P}.tar.gz"
KEYWORDS="-* ~arm ~hppa ~m68k ~mips ~ppc ~ppc64 ~sparc ~x86"
fi
export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} ]] ; then
if [[ ${CATEGORY} == cross-* ]] ; then
export CTARGET=${CATEGORY#cross-}
fi
fi
DESCRIPTION="Newlib is a C library intended for use on embedded systems"
HOMEPAGE="https://sourceware.org/newlib/"
LICENSE="NEWLIB LIBGLOSS GPL-2"
SLOT="0"
IUSE="nls threads unicode headers-only nano"
RESTRICT="strip"
NEWLIBBUILD="${WORKDIR}/build"
NEWLIBNANOBUILD="${WORKDIR}/build.nano"
NEWLIBNANOTMPINSTALL="${WORKDIR}/nano_tmp_install"
# Adding -U_FORTIFY_SOURCE to counter the effect of Gentoo's
# auto-addition of _FORTIFY_SOURCE at gcc site: bug #656018#c4
# Currently newlib can't be built itself when _FORTIFY_SOURCE
# is set.
CFLAGS_FULL="-ffunction-sections -fdata-sections -U_FORTIFY_SOURCE"
CFLAGS_NANO="-Os -ffunction-sections -fdata-sections -U_FORTIFY_SOURCE"
pkg_setup() {
# Reject newlib-on-glibc type installs
if [[ ${CTARGET} == ${CHOST} ]] ; then
case ${CHOST} in
*-newlib|*-elf) ;;
*) die "Use sys-devel/crossdev to build a newlib toolchain" ;;
esac
fi
case ${CTARGET} in
msp430*)
# bug #717610
die "gcc on ${CTARGET} needs older newlib. Use newlib-3.1.0."
;;
esac
}
src_configure() {
# we should fix this ...
unset LDFLAGS
CHOST=${CTARGET} strip-unsupported-flags
CCASFLAGS_ORIG="${CCASFLAGS}"
CFLAGS_ORIG="${CFLAGS}"
local myconf=(
# Disable legacy syscall stub code in newlib. These have been
# moved to libgloss for a long time now, so the code in newlib
# itself just gets in the way.
--disable-newlib-supplied-syscalls
)
[[ ${CTARGET} == "spu" ]] \
&& myconf+=( --disable-newlib-multithread ) \
|| myconf+=( $(use_enable threads newlib-multithread) )
mkdir -p "${NEWLIBBUILD}"
cd "${NEWLIBBUILD}"
export "CFLAGS_FOR_TARGET=${CFLAGS_ORIG} ${CFLAGS_FULL}"
export "CCASFLAGS=${CCASFLAGS_ORIG} ${CFLAGS_FULL}"
ECONF_SOURCE=${S} \
econf \
$(use_enable unicode newlib-mb) \
$(use_enable nls) \
"${myconf[@]}"
# Build newlib-nano beside newlib (original)
# Based on https://tracker.debian.org/media/packages/n/newlib/rules-2.1.0%2Bgit20140818.1a8323b-2
if use nano ; then
mkdir -p "${NEWLIBNANOBUILD}" || die
cd "${NEWLIBNANOBUILD}" || die
export "CFLAGS_FOR_TARGET=${CFLAGS_ORIG} ${CFLAGS_NANO}"
export "CCASFLAGS=${CCASFLAGS_ORIG} ${CFLAGS_NANO}"
ECONF_SOURCE=${S} \
econf \
$(use_enable unicode newlib-mb) \
$(use_enable nls) \
--enable-newlib-reent-small \
--disable-newlib-fvwrite-in-streamio \
--disable-newlib-fseek-optimization \
--disable-newlib-wide-orient \
--enable-newlib-nano-malloc \
--disable-newlib-unbuf-stream-opt \
--enable-lite-exit \
--enable-newlib-global-atexit \
--enable-newlib-nano-formatted-io \
${myconf}
fi
}
src_compile() {
export "CFLAGS_FOR_TARGET=${CFLAGS_ORIG} ${CFLAGS_FULL}"
export "CCASFLAGS=${CCASFLAGS_ORIG} ${CFLAGS_FULL}"
emake -C "${NEWLIBBUILD}"
if use nano ; then
export "CFLAGS_FOR_TARGET=${CFLAGS_ORIG} ${CFLAGS_NANO}"
export "CCASFLAGS=${CCASFLAGS_ORIG} ${CFLAGS_NANO}"
emake -C "${NEWLIBNANOBUILD}"
fi
}
src_install() {
cd "${NEWLIBBUILD}" || die
emake -j1 DESTDIR="${D}" install
if use nano ; then
cd "${NEWLIBNANOBUILD}" || die
emake -j1 DESTDIR="${NEWLIBNANOTMPINSTALL}" install
# Rename nano lib* files to lib*_nano and move to the real ${D}
local nanolibfiles=""
nanolibfiles=$(find "${NEWLIBNANOTMPINSTALL}" -regex ".*/lib\(c\|g\|rdimon\)\.a" -print)
for f in ${nanolibfiles}; do
local l="${f##${NEWLIBNANOTMPINSTALL}}"
mv -v "${f}" "${D}/${l%%\.a}_nano.a" || die
done
# Move newlib-nano's version of newlib.h to newlib-nano/newlib.h
mkdir -p "${D}/usr/${CTARGET}/include/newlib-nano" || die
mv "${NEWLIBNANOTMPINSTALL}/usr/${CTARGET}/include/newlib.h" \
"${D}/usr/${CTARGET}/include/newlib-nano/newlib.h" || die
fi
# minor hack to keep things clean
rm -rf "${D}"/usr/share/info || die
rm -rf "${D}"/usr/info || die
}
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