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# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
inherit bsdmk multilib-minimal toolchain-funcs
DESCRIPTION="crtbegin.o/crtend.o from NetBSD CSU for GCC-free toolchain"
HOMEPAGE="http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/csu/"
SRC_URI="https://dev.gentoo.org/~mgorny/dist/${P}.tar.xz"
LICENSE="BSD-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE=""
DEPEND="app-arch/xz-utils"
S=${WORKDIR}/${P}/lib/csu
src_prepare() {
default
multilib_copy_sources
}
multilib_src_compile() {
local inc_arch=${ABI:-${ARCH}}
# rewrite ARCH to match NetBSD includes
case "${inc_arch}" in
x86) inc_arch=i386;;
# x32 seems to be equivalent to amd64 as far as we're concerned
x32) inc_arch=amd64;;
arm64) inc_arch=aarch64;;
esac
# we need arch-specific headers for some assembler macros
if [[ ! -d ${WORKDIR}/${P}/sys/arch/${inc_arch} ]]; then
die "Unexpected ABI/ARCH: ${inc_arch}, please report"
fi
ln -s "${WORKDIR}/${P}/sys/arch/${inc_arch}/include" common/machine || die
local opts=(
CC="$(tc-getCC)"
OBJCOPY="$(tc-getOBJCOPY)"
MKPIC=yes
MKSTRIPIDENT=no
)
# rewrite MACHINE_ARCH to match names used in CSU
case "${inc_arch}" in
amd64) opts+=( MACHINE_ARCH=x86_64 );;
*) opts+=( MACHINE_ARCH="${inc_arch}" );;
esac
# we only need those files; crt1 and friends are provided by libc
opts+=( crtbegin.o crtbeginS.o crtend.o )
bsdmk_src_compile "${opts[@]}"
}
multilib_src_test() {
local cc=(
# -B sets prefix for internal gcc/clang file lookup
$(tc-getCC) -B"${BUILD_DIR}"
)
# 1. figure out the correct location for crt* files
if tc-is-gcc; then
# gcc requires crt*.o in multi-dir
local multidir=$("${cc[@]}" -print-multi-directory)
if [[ ${multidir} != . ]]; then
ln -s . "${multidir}" || die
fi
elif tc-is-clang; then
# clang is entirely happy with crt*.o in -B
:
else
eerror "Unsupported compiler for tests ($(tc-getCC))"
return
fi
# 2. verify that the compiler can use our crtbegin/crtend
local crtbegin=$("${cc[@]}" -print-file-name=crtbegin.o) || die
local crtend=$("${cc[@]}" -print-file-name=crtend.o) || die
if [[ ! ${crtbegin} -ef ${BUILD_DIR}/crtbegin.o ]]; then
die "Compiler uses wrong crtbegin: ${crtbegin}"
fi
if [[ ! ${crtend} -ef ${BUILD_DIR}/crtend.o ]]; then
die "Compiler uses wrong crtend: ${crtend}"
fi
cat > hello.c <<-EOF || die
#include <stdio.h>
__attribute__((constructor))
static void ctor_test()
{
fputs("ctor:", stdout);
}
__attribute__((destructor))
static void dtor_test()
{
fputs(":dtor", stdout);
}
int main()
{
fputs("main", stdout);
return 0;
}
EOF
emake -f /dev/null CC="${cc[*]}" hello
local out=$(./hello) || die
if [[ ${out} != ctor:main:dtor ]]; then
eerror "Invalid output from the test case."
eerror " Expected: ctor:main:dtor"
eerror " Output : ${out}"
die "Test failed for ${ABI:-${ARCH}}"
fi
}
multilib_src_install() {
dolib crtbegin.o crtbeginS.o crtend.o
dosym crtbegin.o "/usr/$(get_libdir)/crtbeginT.o"
dosym crtend.o "/usr/$(get_libdir)/crtendS.o"
}
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