# Contributor: Stefan Wagner <stw@bit-strickerei.de>
# Maintainer: Marian Buschsieweke <marian.buschsieweke@posteo.net>
# Based on binutils-avr
_pkgbase=binutils
pkgname="$_pkgbase-cross-embedded"
pkgver=2.44
pkgrel=0
pkgdesc="tools necessary to build programs for embedded targets"
url="https://www.gnu.org/software/binutils/"
makedepends="gettext libtool autoconf automake bison texinfo zlib-dev zstd-dev"
arch="all"
license="GPL-2.0-or-later AND LGPL-2.1-or-later AND BSD-3-Clause"
source="https://ftp.gnu.org/gnu/$_pkgbase/$_pkgbase-$pkgver.tar.xz"
builddir="$srcdir/$_pkgbase-$pkgver"

# classify targets as exotic or mainstream. Only build support for
# exotic targets on typical developer / CI hardware (x86_86, aarach64).
_targets_mainstream="
	arm-none-eabi
	avr
	riscv-none-elf
	"

_targets_exotic="
	msp430-elf
	or1k-elf
	aarch64-none-elf
	xtensa-none-elf
	xtensa-esp32-elf
	xtensa-esp32s2-elf
	xtensa-esp32s3-elf
	xtensa-esp8266-elf
	"

case "$CARCH" in
x86_64|aarch64|loongarch64)
	# support all targets on typical workstation / notebook / CI servers
	_targets="$_targets_mainstream $_targets_exotic"
	makedepends="$makedepends xtensa-dynconfig"
	;;
*)
	# support only mainstream targets on exotic hosts
	_targets="$_targets_mainstream"
	;;
esac

for target in $_targets; do
	case "$target" in
	xtensa-esp*-elf)
		subpackages="$_pkgbase-$target:_install_esp $subpackages"
		;;
	*)
		subpackages="$_pkgbase-$target:_install_subpkg $subpackages"
		;;
	esac
done

# secfixes:
#   2.37-r0:
#     - CVE-2020-35448

build() {
	for target in $_targets; do
		case "$target" in
		xtensa-esp*-elf)
			# no need to build for ESP targets, we will just provide
			# wrappers to xtensa-none-elf with xtensa-dynconfig
			;;
		*)
			local workingdir
			workingdir="$srcdir/build-$target"
			mkdir -p "$workingdir"
			cd "$workingdir"
			"$builddir"/configure \
				--target=$target \
				--with-sysroot=/usr/$target \
				--prefix=/usr/ \
				--libdir=/usr/$target/lib \
				--infodir=/deleteme/info \
				--htmldir=/deleteme/html \
				--pdfdir=/deleteme/pdf \
				--mandir=/deleteme/man \
				--with-gnu-as \
				--with-gnu-ld \
				--enable-deterministic-archieves \
				--enable-interwork \
				--enable-lto \
				--enable-multilib \
				--enable-plugins \
				--enable-ld=default \
				--disable-nls
			make tooldir=/usr
		esac
	done
}

check() {
	for target in $_targets; do
		case "$target" in
		xtensa-esp*-elf)
			# only wrappers, nothing to check
			;;
		*)
			local workingdir
			workingdir="$srcdir/build-$target"
			cd "$workingdir"
			make check
			;;
		esac
	done
}

package() {
	for target in $_targets; do
		depends="$depends $_pkgbase-$target"
	done
	mkdir -p "$pkgdir"
}

_install_subpkg() {
	local target
	target="${subpkgname#"$_pkgbase-"}"
	pkgdesc="Tools necessary to build programs for $target"
	workingdir="$srcdir/build-$target"
	cd "$workingdir"
	make install DESTDIR="$subpkgdir"
	rm -rf "$subpkgdir"/deleteme
	for bin in ar as nm objcopy objdump ranlib strip readelf; do
		rm -f "$subpkgdir"/usr/bin/"$bin"
	done
}

_install_esp() {
	local target
	target="${subpkgname#"$_pkgbase-"}"
	local mcu
	mcu="${target#xtensa-}"
	mcu="${mcu%-elf}"
	pkgdesc="Tools necessary to build programs for $target"
	depends="binutils-xtensa-none-elf=$pkgver-r$pkgrel xtensa-dynconfig-$mcu"
	arch="noarch"
	local cmds
	cmds="
		addr2line
		ar
		as
		c++filt
		elfedit
		gprof
		ld
		ld.bfd
		nm
		objcopy
		objdump
		ranlib
		readelf
		size
		strings
		strip
		"
	mkdir -p "$subpkgdir/usr/bin"
	for cmd in $cmds; do
		cat > "$subpkgdir/usr/bin/$target-$cmd" << EOF
#!/bin/sh
exec env XTENSA_GNU_CONFIG=/usr/lib/xtensa-dynconfig/xtensa_$mcu.so xtensa-none-elf-$cmd "\$@"
EOF
		chmod +x "$subpkgdir/usr/bin/$target-$cmd"
	done
}

sha512sums="
b85d3bbc0e334cf67a96219d3c7c65fbf3e832b2c98a7417bf131f3645a0307057ec81cd2b29ff2563cec53e3d42f73e2c60cc5708e80d4a730efdcc6ae14ad7  binutils-2.44.tar.xz
"