From c21f846561e049965ff6052314fce622198f3801 Mon Sep 17 00:00:00 2001
From: bill-auger <mr.j.spam.me@gmail.com>
Date: Thu, 21 Jul 2022 22:16:45 -0400
Subject: wip - linux-libre-64 PKGBUILD from beeefcake filesystem

---
 libre/linux-libre-64/PKGBUILD | 197 ++++++++++++++++++++++++++++++++----------
 1 file changed, 149 insertions(+), 48 deletions(-)

diff --git a/libre/linux-libre-64/PKGBUILD b/libre/linux-libre-64/PKGBUILD
index 37a59db10..b3e70eb8d 100644
--- a/libre/linux-libre-64/PKGBUILD
+++ b/libre/linux-libre-64/PKGBUILD
@@ -1,29 +1,61 @@
+# Contributor: David P. <megver83@parabola.nu>
+# Contributor: André Silva <emulatorman@hyperbola.info>
+# Contributor: Márcio Silva <coadde@hyperbola.info>
+# Contributor: fauno <fauno@parabola.nu>
+# Contributor: Sorin-Mihai Vârgolici <smv@yobicore.org>
+# Contributor: Michał Masłowski <mtjm@mtjm.eu>
+# Contributor: Luke R. <g4jc@openmailbox.org>
+# Contributor: Andreas Grapentin <andreas@grapentin.org>
 # Maintainers: Parabola hackers <dev@lists.parabola.nu>
 
-# WIP - Based on the linux-libre package.
-#       this PKGBUILD includes a lot of cruft, to minimize the diff.
-#       eventually, these chanegs can be merged into linux-libre
-#       once parabola has an 'aarch64' build target and repos.
+# Based on linux package
+# Based on linux-libre package, actually - megver83 will become maintainer eventually
+
+# WIP: This PKGBUILD is derived from the 'linux-libre' PKGBUILD,
+#      and includes a lot of unused cruft, to minimize the diff.
+#      Eventually, these differences can be merged into linux-libre,
+#      once parabola has an 'aarch64' build target and repos.
+#
+#      For now, 'aarch64' is not yet a valid parabola target.
+#      This PKGBUILD exists only for making an 'aarch64' kernel for use with
+#      parabola armv7h systems. This PKGBUILD is intended to be cross-compiled
+#      only from an armv7h librechroot. The per-arch mechanism for armv7h
+#      is over-ridden for the special purpose of the cross-compilation.
+#
+#      The makedepends_armv7h, source_armv7h, and sha512sums_armv7h arrays
+#      (also source_aarch64 and sha512sums_aarch64 obviously), and the comments:
+#        '# cross-compile over-ride' and
+#        '# TODO: merge into 'linux-libre' PKGBUILD',
+#      indicate code that would eventually be deleted, merged into,
+#      or associated with $CARCH: 'aarch64', if/when aarch64 becomes a valid target.
+#      All other LOCs of consequence in this file,
+#      should be identical to the linux-libre PKGBUILD.
+#      In this way, the diff is minimal against the linux-libre PKGBUILD;
+#      and it is obvious which parts are intended to become aarch64-specific,
+#      or exist only for cross-compiling the aarch64 kernel for armv7h systems.
 
 
 _replacesarchkernel=('linux%') # '%' gets replaced with kernel suffix
 _replacesoldkernels=() # '%' gets replaced with kernel suffix
 _replacesoldmodules=() # '%' gets replaced with kernel suffix
 
-pkgbase=linux-libre-64
+pkgbase=linux-libre-64 # cross-compile over-ride
 pkgver=5.18.5
-pkgrel=2.test
-pkgdesc="64bit Linux-libre for Parabola $CARCH"
+pkgrel=2
+pkgdesc="The Linux-libre kernel and modules" # TODO: merge into 'linux-libre' PKGBUILD
+pkgdesc+=' 64-bit (aarch64) for Parabola armv7h' # cross-compile over-ride
 rcnver=5.18.2
 rcnrel=armv7-x6
 url='https://linux-libre.fsfla.org/'
-arch=(armv7h i686)
+arch=(i686 x86_64 armv7h)
+arch=(armv7h) # cross-compile over-ride
 license=(GPL2)
 makedepends=(
   bc libelf pahole cpio perl tar xz
   xmlto python-sphinx python-sphinx_rtd_theme graphviz imagemagick texlive-latexextra
 )
-makedepends_armv7h=(uboot-tools dtc) # required by linux-libre-chromebook
+makedepends_armv7h=(uboot-tools vboot-utils dtc) # required by linux-libre-chromebook
+makedepends_armv7h+=(aarch64-linux-gnu-gcc-initial) # cross-compile over-ride
 options=('!strip')
 _srcname=linux-5.18
 source=(
@@ -52,7 +84,7 @@ source_i686=(
 source_armv7h=(
   # RCN patch (CM3 firmware deblobbed and bloatware removed)
   "https://repo.parabola.nu/other/rcn-libre/patches/$rcnver/rcn-libre-$rcnver-$rcnrel.patch"{,.sig}
-  # Arch Linux ARM patches (for armv7h)
+  # Arch Linux ARM patches (armv7h)
   0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
   0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
   0003-fix-mvsdio-eMMC-timing.patch
@@ -60,13 +92,16 @@ source_armv7h=(
   0005-set-default-cubietruck-led-triggers.patch
   0006-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
   0007-USB-Armory-MkII-support.patch
-  # Arch Linux ARM patches (for aarch64)
-  # ./0001-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
-  0002-arm64-dts-rockchip-disable-pwm0-on-rk3399-firefly.patch
   # ChromiumOS patches
   0001-CHROMIUM-block-partitions-efi-Add-support-for-IGNORE.patch
 )
-source_armv7h+=(config.aarch64)
+source_aarch64=(
+  config.aarch64
+  # Arch Linux ARM patches (aarch64)
+  0001-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
+  0002-arm64-dts-rockchip-disable-pwm0-on-rk3399-firefly.patch
+)
+source_armv7h=( ${source_aarch64[*]} ) # cross-compile over-ride
 validpgpkeys=(
   '474402C8C582DAFBE389C427BCB7CF877E7D47A7' # Alexandre Oliva
   '6DB9C4B4F0D8C0DC432CF6E4227CA7C556B2BA78' # David P.
@@ -102,21 +137,26 @@ sha512sums_armv7h=('5a75b12dd386940a0bf1be630d45a514ef3c32289ec5976988764baa8483
                    'a1072dd808c63592178cc01ea3c36de946f277fb451b13c34f51a5ac134cde4a8a4d57487132af1c6d7b5820842cdda9dc4edb3da85d33bd02bf87a032c3263a'
                    '85b2e16a930b8066990c42f973d386dc3c6d62fdf3d1289bbb51df3df296c26f30051162fba49a42d38f71f05de926aa8c065097f14bd8e9f8e28a52949ead00'
                    '2e99582d8b670b6c6b27add14b60e957cbcf9cd6aae40491bd9dea6ac455c0ade0bbee21e3bdfb5e06ce83ad27c5a788404b05bf7ac93831ca18d2e60a67017c'
-                   '4224779106cc520dc2c431322d9693cc968476706854ae9630611cf2896c48a34ca11bf31a4c3995573a128cf5838a6763bac86eb4cbaf509ade9b6a83a24369'
-                   '5b77c587cf2ffb60acf1d9eb43330983548c7e81a53e0ffd2b04962a99441a0000d631ff77c245c7062afc2c8368d996a2456496d42dcb658f330e5083e5e029'
-                   'bc7b70863929737346fe6757373897391b43af36bb6884d5351a95aca0f9120f2d2cf9b9c2c6426a440c6b394e9fb334c280711d64081563322a834ecdfb2ba6')
+                   '5b77c587cf2ffb60acf1d9eb43330983548c7e81a53e0ffd2b04962a99441a0000d631ff77c245c7062afc2c8368d996a2456496d42dcb658f330e5083e5e029')
+sha512sums_aarch64=('bc7b70863929737346fe6757373897391b43af36bb6884d5351a95aca0f9120f2d2cf9b9c2c6426a440c6b394e9fb334c280711d64081563322a834ecdfb2ba6'
+                    '69e81aff3ac5aada75f7330e8c82d0a6aa229585b3f442b2e1a9b86681b0eadc925408d5e2377026599fb0dee72d29043eca4d072b0e2606adc34c872e95c7d6'
+                    '4224779106cc520dc2c431322d9693cc968476706854ae9630611cf2896c48a34ca11bf31a4c3995573a128cf5838a6763bac86eb4cbaf509ade9b6a83a24369')
+sha512sums_armv7h=( ${sha512sums_aarch64[*]} ) # cross-compile over-ride
 _replacesarchkernel=("${_replacesarchkernel[@]/\%/${pkgbase#linux-libre}}")
 _replacesoldkernels=("${_replacesoldkernels[@]/\%/${pkgbase#linux-libre}}")
 _replacesoldmodules=("${_replacesoldmodules[@]/\%/${pkgbase#linux-libre}}")
+_replacesarchkernel=("${_replacesarchkernel[@]/-64/}") # cross-compile over-ride
 
 case "$CARCH" in
-  i686) KARCH=x86;CROSS_COMPILE=x86_64-pc-linux-gnu-;;
-  armv7h) KARCH=arm64;CROSS_COMPILE=aarch64-linux-gnu-;;
+  armv7h) KARCH=arm64 ; CROSS_COMPILE=aarch64-linux-gnu- ;; # cross-compile over-ride
+  aarch64) KARCH=arm64;; # TODO: merge into 'linux-libre' PKGBUILD
+  i686|x86_64) KARCH=x86;;
+  armv7h) KARCH=arm;;
 esac
 
-export STRIP=${CROSS_COMPILE}strip
 export KBUILD_BUILD_HOST=parabola
 export KBUILD_BUILD_USER=$pkgbase
+export KBUILD_BUILD_USER=${pkgbase/-64/} # cross-compile over-ride
 export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
 
 prepare() {
@@ -158,6 +198,18 @@ prepare() {
     done
   fi
 
+  if [ "$CARCH" = "aarch64" ]; then # TODO: merge into 'linux-libre' PKGBUILD
+                                    # TODO: better yet, all of these per-arch patching routines should be DRY-ed out
+    local src_aarch64
+    for src_aarch64 in "${source_aarch64[@]}"; do
+      src_aarch64="${src_aarch64%%::*}"
+      src_aarch64="${src_aarch64##*/}"
+      [[ $src_aarch64 = *.patch ]] || continue
+      echo "Applying patch $src_aarch64..."
+      patch -Np1 < "../$src_aarch64"
+    done
+  fi
+
   local src
   for src in "${source[@]}"; do
     src="${src%%::*}"
@@ -168,23 +220,24 @@ prepare() {
   done
 
   echo "Setting config..."
-  case "$CARCH" in
-  i686) cp ../config.x86_64 .config;;
+  cp ../config.$CARCH .config
   # config.aarch64 comes straight from Arch Linux ARM and doesn't have the
   # compatibility for 32bit rootfs enabled. This makes maintenance faster than
   # having to modify the configuration file by hand at each new kernel release.
-  armv7h) cp ../config.aarch64 .config;echo 'CONFIG_COMPAT=y' >> .config;;
-  esac
-  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE olddefconfig
+  if [[ "$KARCH" == 'arm64' ]]                                             # cross-compile over-ride
+  then cp ../config.aarch64 .config ; echo 'CONFIG_COMPAT=y' >> .config ;  # cross-compile over-ride
+  fi                                                                       # cross-compile over-ride
+  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE olddefconfig               # cross-compile over-ride
+  diff -u ../config.$CARCH .config || :
 
-  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE -s kernelrelease > version
+  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE -s kernelrelease > version # cross-compile over-ride
   echo "Prepared $pkgbase version $(<version)"
 }
 
 build() {
   cd $_srcname
-  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE all
-  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE htmldocs
+  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE all      # cross-compile over-ride
+  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE htmldocs # cross-compile over-ride
 }
 
 _package() {
@@ -193,10 +246,22 @@ _package() {
   optdepends=('wireless-regdb: to set the correct wireless channels of your country'
               'linux-libre-firmware: firmware images needed for some devices')
   provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE)
+  conflicts=() # TODO: merge into 'linux-libre' PKGBUILD (conflicts array is appended before declared)
   replaces=(virtualbox-guest-modules-arch wireguard-arch)
   provides+=("${_replacesarchkernel[@]/%/=$pkgver}" "LINUX-ABI_VERSION=$pkgver")
   conflicts+=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
   replaces+=("${_replacesarchkernel[@]}" "${_replacesoldkernels[@]}" "${_replacesoldmodules[@]}")
+  # cross-compile over-rides
+  # NOTE: Above is providing/replacing the archarm armv7h 'linux' with the armv7h 'linux-libre'.
+  #       We do not want this aarch64 'linux-libre-64' to provide nor replace the archarm armv7h 'linux';
+  #       for the obvious reason. Anyways, the parabola armv7h 'linux-libre' serves that purpose.
+  #       Below is providing/replacing 'linux-libre' and the obsoleted parabola 'linux-libre-aarch64'.
+  #       These are defined analogously in _package-headers(), _package-docs(), and _package-chromebook().
+  conflicts=( ${conflicts[*]/linux*/} )                # cross-compile over-ride
+  replaces=(  ${replaces[*]/linux*/}  )                # cross-compile over-ride
+  provides_armv7h=(  linux-libre                     ) # cross-compile over-ride
+  conflicts_armv7h=( linux-libre linux-libre-aarch64 ) # cross-compile over-ride
+  replaces_armv7h=(  linux-libre linux-libre-aarch64 ) # cross-compile over-ride
 
   cd $_srcname
   local kernver="$(<version)"
@@ -205,26 +270,31 @@ _package() {
   echo "Installing boot image..."
   # systemd expects to find the kernel here to allow hibernation
   # https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
-  # The default image target is Image.gz on arm64 but some u-boot
-  # configurations and/or versions don't support that, so we use Image instead.
-  if [ "$KARCH" = "arm64" ]; then
-    install -Dm644 arch/$KARCH/boot/Image "$modulesdir/vmlinuz"
-  else
-    install -Dm644 "$(make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE -s image_name)" "$modulesdir/vmlinuz"
+  # The default arm64 image target is 'Image.gz' (per `make -s image_name`);
+  # but some u-boot configs/versions don't support that, so we build 'Image' instead.
+  # TODO: merge into 'linux-libre' PKGBUILD
+  [[ "$KARCH" == 'arm64' ]]                                   && \
+  install -Dm644 arch/$KARCH/boot/Image "$modulesdir/vmlinuz" || \
+  install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"
+
+  # FIXME: aarch64 - the kernel is not installed under /boot
+  if   [[ "$KARCH" == 'arm64' && ! -f "$pkgdir/boot/Image" ]]
+  then echo "FIXME: kernel was not installed to \$pkgdir/boot"
+       install -Dm644 "$modulesdir/vmlinuz" "$pkgdir/boot/vmlinuz-${basename}-64"
   fi
 
   # Used by mkinitcpio to name the kernel
   echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"
 
   echo "Installing modules..."
-  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 modules_install
+  make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 modules_install # cross-compile over-ride
 
   # remove build and source links
   rm "$modulesdir"/{source,build}
 
   if [ "$CARCH" = "armv7h" ]; then
     echo "Installing device tree binaries..."
-    make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE INSTALL_DTBS_PATH="$pkgdir/boot/dtbs/$pkgbase" dtbs_install
+    make ARCH=$KARCH CROSS_COMPILE=$CROSS_COMPILE INSTALL_DTBS_PATH="$pkgdir/boot/dtbs/$pkgbase" dtbs_install # cross-compile over-ride
 
     # armv7h presets only work with ALL_kver=$kernver
     backup=("etc/mkinitcpio.d/$pkgbase.preset")
@@ -240,6 +310,11 @@ _package-headers() {
   provides=("${_replacesarchkernel[@]/%/-headers=$pkgver}")
   conflicts=("${_replacesarchkernel[@]/%/-headers}" "${_replacesoldkernels[@]/%/-headers}")
   replaces=("${_replacesarchkernel[@]/%/-headers}" "${_replacesoldkernels[@]/%/-headers}")
+  # cross-compile over-rides - see note in _package()
+  conflicts=()                                                         # cross-compile over-ride
+  replaces=()                                                          # cross-compile over-ride
+  conflicts_armv7h=( linux-libre-headers linux-libre-aarch64-headers ) # cross-compile over-ride
+  replaces_armv7h=(  linux-libre-headers linux-libre-aarch64-headers ) # cross-compile over-ride
 
   cd $_srcname
   local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
@@ -269,6 +344,19 @@ _package-headers() {
   cp -t "$builddir/arch/$KARCH" -a arch/$KARCH/include
   install -Dt "$builddir/arch/$KARCH/kernel" -m644 arch/$KARCH/kernel/asm-offsets.s
 
+  # from linux-armv7
+  [[ "$KARCH" != 'arm64' ]] && # aarch64 over-ride
+  if [ "$CARCH" = "armv7h" ]; then
+    for i in dove omap2; do
+      mkdir -p "$builddir/arch/$KARCH/mach-$i"
+      cp -t "$builddir/arch/$KARCH/mach-$i/" -a arch/$KARCH/mach-$i/include
+    done
+    for i in omap orion versatile; do
+      mkdir -p "$builddir/arch/$KARCH/plat-$i"
+      cp -t "$builddir/arch/$KARCH/plat-$i/" -a arch/$KARCH/plat-$i/include
+    done
+  fi
+
   install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
   install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h
 
@@ -303,23 +391,25 @@ _package-headers() {
   echo "Removing loose objects..."
   find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
 
+  strip() { ${CROSS_COMPILE}strip "${@}" ; } ; # cross-compile over-ride
+
   echo "Stripping build tools..."
   local file
   while read -rd '' file; do
     case "$(file -bi "$file")" in
       application/x-sharedlib\;*)      # Libraries (.so)
-        ${STRIP} -v $STRIP_SHARED "$file" ;;
+        strip -v $STRIP_SHARED "$file" ;;
       application/x-archive\;*)        # Libraries (.a)
-        ${STRIP} -v $STRIP_STATIC "$file" ;;
+        strip -v $STRIP_STATIC "$file" ;;
       application/x-executable\;*)     # Binaries
-        ${STRIP} -v $STRIP_BINARIES "$file" ;;
+        strip -v $STRIP_BINARIES "$file" ;;
       application/x-pie-executable\;*) # Relocatable binaries
-        ${STRIP} -v $STRIP_SHARED "$file" ;;
+        strip -v $STRIP_SHARED "$file" ;;
     esac
   done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
 
   echo "Stripping vmlinux..."
-  ${STRIP} -v $STRIP_STATIC "$builddir/vmlinux"
+  strip -v $STRIP_STATIC "$builddir/vmlinux"
 
   echo "Adding symlink..."
   mkdir -p "$pkgdir/usr/src"
@@ -331,6 +421,11 @@ _package-docs() {
   provides=("${_replacesarchkernel[@]/%/-docs=$pkgver}")
   conflicts=("${_replacesarchkernel[@]/%/-docs}" "${_replacesoldkernels[@]/%/-docs}")
   replaces=("${_replacesarchkernel[@]/%/-docs}" "${_replacesoldkernels[@]/%/-docs}")
+  # cross-compile over-rides - see note in _package()
+  conflicts=()                                                 # cross-compile over-ride
+  replaces=()                                                  # cross-compile over-ride
+  conflicts_armv7h=(linux-libre-docs linux-libre-aarch64-docs) # cross-compile over-ride
+  replaces_armv7h=( linux-libre-docs linux-libre-aarch64-docs) # cross-compile over-ride
 
   cd $_srcname
   local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
@@ -349,12 +444,17 @@ _package-docs() {
 }
 
 _package-chromebook() {
-  pkgdesc="Experimental $pkgdesc kernel sign for Veyron Chromebooks"
-  depends=(linux-libre-64=$pkgver)
-  provides+=("linux-libre-chromebook=$pkgver") # TODO: these provides, conflicts, repalces,
-  conflicts+=('linux-libre-chromebook')        #       will not needed once parabola has
-  replaces+=('linux-libre-chromebook')         #       an 'aarch64' build target and repos
-  install=linux-libre-chromebook.install
+  pkgdesc="$pkgdesc kernel sign for Veyron Chromebooks"
+  depends=(linux-libre=$pkgver)
+  provides=("${_replacesarchkernel[@]/%/-armv7-chromebook=$pkgver}")
+  conflicts=("${_replacesarchkernel[@]/%/-armv7-chromebook}" "${_replacesoldkernels[@]/%/-armv7-chromebook}")
+  replaces=("${_replacesarchkernel[@]/%/-armv7-chromebook}" "${_replacesoldkernels[@]/%/-armv7-chromebook}")
+  install=$pkgbase-chromebook.install
+  # NOTE: when aarch64 becomes a supported target, 'armv7' above should be changed to "${CARCH}"
+  depends=(   ${depends[*]/linux-libre/${pkgbase}} ) # cross-compile over-ride
+  provides=(  ${provides[*]/armv7/aarch64}         ) # cross-compile over-ride
+  conflicts=( ${conflicts[*]/armv7/aarch64}        ) # cross-compile over-ride
+  replaces=(  ${replaces[*]/armv7/aarch64}         ) # cross-compile over-ride
 
   cd $_srcname
 
@@ -363,12 +463,13 @@ _package-chromebook() {
   dd if=/dev/zero of=bootloader.bin bs=512 count=1
   echo 'console=tty0 init=/sbin/init root=PARTUUID=%U/PARTNROFF=1 rootwait rw noinitrd' > cmdline
 
+  # TODO: merge into 'linux-libre' PKGBUILD (--arch ${KARCH})
   echo "Creating kernel sign..."
   vbutil_kernel \
     --pack vmlinux.kpart \
     --version 1 \
     --vmlinuz kernel.signed \
-    --arch aarch64 \
+    --arch ${KARCH} \
     --keyblock ../kernel.keyblock \
     --signprivate ../kernel_data_key.vbprivk \
     --config cmdline \
-- 
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