Initial commit

3 files changed, 129 insertions, 0 deletions

diff --git a/.SRCINFO b/.SRCINFO
new file mode 100644
index 000000000000..8b3303187917
--- /dev/null
+++ b/.SRCINFO
@@ -0,0 +1,23 @@
+pkgbase = vivado
+	pkgdesc = FPGA/CPLD design suite for Xilinx devices
+	pkgver = 2018.3
+	pkgrel = 1
+	url = https://www.xilinx.com/products/design-tools/vivado.html
+	arch = x86_64
+	license = custom
+	depends = ncurses5-compat-libs
+	depends = libpng12
+	depends = lib32-libpng12
+	depends = gtk2
+	depends = fxload
+	depends = digilent.adept.runtime
+	depends = digilent.adept.utilities
+	depends = xterm
+	options = !strip
+	source = file:///Xilinx_Vivado_SDK_2018.3_1207_2324.tar.gz
+	source = spoof_homedir.c
+	md5sums = 8a3a75f26d0e20de21fc673ad9d40d0f
+	md5sums = 69d14ad64f6ec44e041eaa8ffcb6f87c
+
+pkgname = vivado
+
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..5019b824bd04
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,78 @@
+# Maintainer: xiretza <aur@xiretza.xyz>
+# Contributor: Darren Wu <$(base64 --decode <<<'ZGFycmVuMTk5NzA4MTBAZ21haWwuY29tCg==')>
+
+# BUILD INSTRUCTIONS:
+#
+# 1. Log in to xilinx.com
+# 2. Go to https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/vivado-design-tools.html
+# 3. Download "All OS installer Single-File Download" (.tar.gz) - WARNING: This file is about 19GB in size
+# 4. Place the .tar.gz in the same directory as the PKGBUILD
+# 5. Build!
+#
+# No refunds for broken AUR helpers, just use make(chroot)pkg.
+#
+# SOME MORE NOTES:
+#
+# This package is huge. The download alone is a 19GB .tar.gz, which decompresses to 20GB,
+# and the final package (with compression disabled) is 28GB. Reserve at least 60GB when using makechrootpkg.
+#
+# It can also take about an hour to build, being mostly limited by I/O and single-thread
+# performance. `namcap` takes another 30 minutes, make sure you're not running that automatically.
+#
+# It *also* requires a reasonably ugly hack to build: since package() is run under fakeroot,
+# and the installer tries to access the home directory no matter what `--location` is set to,
+# it fails during "Running post-install tasks" because it tries to access `/root`.
+# To fix this, a tiny shared library (see spoof_homedir.c) is LD_PRELOADed. Its only job is to
+# wrap the `getpwuid()` function and modify the original return value for uid==0.
+
+pkgname=vivado
+pkgver=2018.3
+_more_ver=1207_2324
+pkgrel=1
+pkgdesc="FPGA/CPLD design suite for Xilinx devices"
+url="https://www.xilinx.com/products/design-tools/vivado.html"
+arch=('x86_64')
+license=('custom')
+depends=('ncurses5-compat-libs'
+         'libpng12'
+         'lib32-libpng12'
+         'gtk2'
+         'fxload'
+         'digilent.adept.runtime'
+         'digilent.adept.utilities'
+         'xterm')
+
+source=("file:///Xilinx_Vivado_SDK_${pkgver}_${_more_ver}.tar.gz"
+        'spoof_homedir.c')
+
+# checksum from https://www.xilinx.com/support/download.html
+md5sums=('8a3a75f26d0e20de21fc673ad9d40d0f'
+         '69d14ad64f6ec44e041eaa8ffcb6f87c')
+
+options=('!strip')
+PKGEXT=".pkg.tar"
+
+prepare() {
+	mkdir -p "$srcdir/installer_temp"
+}
+
+build() {
+	# build our getpwuid() wrapper library
+	gcc -shared -fPIC -D "FAKE_HOME=\"$srcdir/installer_temp\"" spoof_homedir.c -o spoof_homedir.so -ldl
+}
+
+package() {
+	cd "Xilinx_Vivado_SDK_${pkgver}_${_more_ver}"
+
+	# LD_PRELOAD already contains libfakeroot.so, add our own library before that
+	LD_PRELOAD="$srcdir/spoof_homedir.so:$LD_PRELOAD" ./xsetup \
+		--batch Install \
+		--agree XilinxEULA,3rdPartyEULA,WebTalkTerms \
+		--edition 'Vivado HL WebPACK' \
+		--location "$pkgdir/opt/Xilinx"
+
+	# clean up artefacts, remove leading $pkgdir from paths
+	rm -rf "$pkgdir/opt/Xilinx/.xinstall/"
+	sed -i -e "s|$pkgdir||g" "$pkgdir"/opt/Xilinx/{DocNav/.settings64-DocNav.{,c}sh,SDK/"$pkgver"/{settings64,.settings64-SDK_Core_Tools}.{,c}sh,Vivado/"$pkgver"/{settings64,.settings64-Vivado}.{,c}sh}
+}
+
diff --git a/spoof_homedir.c b/spoof_homedir.c
new file mode 100644
index 000000000000..caee9b033b2e
--- /dev/null
+++ b/spoof_homedir.c
@@ -0,0 +1,28 @@
+#define _GNU_SOURCE
+#include <dlfcn.h>
+#include <pwd.h>
+#include <sys/types.h>
+
+/* shared library that replaces the home directory for root in a `getpwuid()` call
+ * with a specific location
+ *
+ * inspired by https://rafalcieslak.wordpress.com/2013/04/02/dynamic-linker-tricks-using-ld_preload-to-cheat-inject-features-and-investigate-programs/
+ *
+ * Usage:
+ * gcc -shared -fPIC -D 'FAKE_HOME="/path/to/fake/directory"' spoof_homedir.c -o spoof_homedir.so -ldl
+ * LD_PRELOAD="./spoof_homedir.so" binary_to_spoof
+ */
+
+typedef struct passwd *(*orig_getpwuid_f_type)(uid_t uid);
+
+struct passwd *getpwuid(uid_t uid) {
+	orig_getpwuid_f_type orig_getpwuid;
+	orig_getpwuid = (orig_getpwuid_f_type)dlsym(RTLD_NEXT, "getpwuid");
+
+	struct passwd *result = orig_getpwuid(uid);
+	if (uid == 0) {
+		result->pw_dir = FAKE_HOME;
+	}
+
+	return result;
+}