# Maintainer: Mitch Tishmack <mitch.tishmack@gmail.com>
# TODO: unbundle lzma-sdk
pkgname=upx
pkgver=3.95
pkgrel=1
pkgdesc="The Ultimate Packer for eXecutables"
url="https://upx.github.io"
arch="all"
license="GPL-2.0 Public-Domain"
# perl-dev is used to generate man pages
makedepends="bash perl-dev ucl-dev zlib-dev"
subpackages="$pkgname-doc"
source="https://github.com/upx/$pkgname/releases/download/v$pkgver/$pkgname-$pkgver-src.tar.xz
	0001-rm-broken-whitespace-check.patch"
# tests fail
if [ "$CARCH" = "s390x" ]; then options="!check"; fi
builddir="$srcdir/$pkgname-$pkgver-src"

build() {
	cd "$builddir"

	make CXXFLAGS_OPTIMIZE= UPX_LZMADIR="$srcdir" all
}

check() {
	cd "$builddir"

	# upx -q is not quiet enough by design or broken

	local upx=src/upx.out
	local out

	# first check some big dynamically-linked binary
	echo "checking -pie..."

	cp -f /bin/busybox ./sh
	for i in "-1" "-d"; do
		$upx $i -qf sh &>/dev/null
		out="$(./sh -c 'echo works')"
		test "x$out" = "xworks"
	done
	rm -f sh

	# then check less common statically-linked binaries (PIE and non-PIE)
	for v in "-static" "-static -no-pie"; do
		echo "checking $v..."

		# must be compressible (i.e. big enough) so pull printf etc
		$CC -o upxtest -pipe -std=c11 -pedantic -Wall $CFLAGS $LDFLAGS $v -x c - -latomic <<-EOF
		#include <stdatomic.h>
		#include <stdio.h>
		static const atomic_llong b = ATOMIC_VAR_INIT(0x1000200030004000LL);
		int main(int argc, char *argv[const]) {
			atomic_llong a = ATOMIC_VAR_INIT(argc);
			atomic_fetch_add(&a, b);
			printf("%d,%#llx\n", argc, a);
			return 0;
		}
		EOF

		for i in "-1" "-d"; do
			$upx $i -qf upxtest &>/dev/null
			out=$(./upxtest "")
			test "x$out" = "x2,0x1000200030004002"
		done
	done
	rm -f upxtest
}

package() {
	cd "$builddir"

	install -D -m 0755 src/upx.out "$pkgdir"/usr/bin/upx
	install -D -m 0644 doc/upx.1 "$pkgdir"/usr/share/man/man1/upx.1
}

sha512sums="0e1d3e26462057f16587197e73301957e870107808fdbcd24d9976094dfa0e5efbe8da0f9b6732a99f05990dcd4be242a87ea19a7110dc052c6dc982cd596416  upx-3.95-src.tar.xz
a41dd8b8e9e884c78c410a49b4486963f6dd90759ba49eb05123e81b8e4fbe3d23af2ba5c2acf64218b7edeec7df0793b4030d1375c167a183a4d70d21addf50  0001-rm-broken-whitespace-check.patch"