Begin of the Nexus 5 hammerhead port

This commit is contained in:
Martijn Braam 2017-05-29 22:26:58 +02:00
parent 2a1cb96aba
commit 9823a0e416
6 changed files with 1604 additions and 0 deletions

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# use 'weston-calibrator' to calibrate the touchscreen!
SUBSYSTEM=="input", ATTRS{name}=="touch_dev", \
ENV{ID_INPUT}="1", ENV{ID_INPUT_TOUCHSCREEN}="1" \
ENV{WL_CALIBRATION}="0.982113 -0.006129 1.983124 -0.002560 1.000800 -6.012451"

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#!/bin/sh
# set framebuffer resolution
cat /sys/class/graphics/fb0/modes > /sys/class/graphics/fb0/mode

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#!/bin/sh
# Dirty hacks, necessary to get a working demo...
if [ -e /etc/xdg/weston/weston.ini ]; then
rm /etc/xdg/weston/weston.ini
echo "WARNING: xwayland does not work yet on lg-mako (probably"
echo "because of bad framebuffer drivers)"
echo "=> Deleted /etc/xdg/weston/weston.ini as workaround"
fi
if [ -e /lib/udev/v4l_id ]; then
mv /lib/udev/v4l_id /lib/udev/v4l_id_
echo "WARNING: v4l_id hangs with the current kernel."
echo "=> Moved it from /lib/udev/v4l_id to /lib/udev/v4l_id_"
fi
# Run a few weston demos, because the postmarketos-demos program depends
# on xwayland for now (Alpine's GTK3 isn't configured for Wayland
# support yet.)
if [ $(tty) = "/dev/tty1" ]; then
(
sleep 3;
export XDG_RUNTIME_DIR=/tmp/0-runtime-dir
weston-smoke &
weston-simple-damage &
weston-editor &
weston-terminal --shell=/usr/bin/htop &
) > /dev/null &
fi

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# APKBUILD based on linux-vanilla aport. Changes:
# - disabled module installation
# - add !check !tracedeps
# - package: just install zimage and kernel.release, because the kernel config
# does not generate modules or dtb files
# - do not create -dev subpackage (makes no sense without module support)
#
# Kernel config based on: arch/arm/configs/lineageos_mako_defconfig
# Changes:
# - enable devtmpfs (needed for udev -> touch support in weston)
_vendor=lg
_flavor=lg-hammerhead
_hash="v4.11"
_config="config-${_flavor}.armhf"
pkgname=linux-${_flavor}
pkgver=4.11
case $pkgver in
*.*.*) _kernver=${pkgver%.*};;
*.*) _kernver=$pkgver;;
esac
pkgrel=3
arch="armhf"
pkgdesc="Linux 4.11 with hammerhead config"
url="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=hammerhead"
depends="postmarketos-mkinitfs"
makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev"
options="!strip !check !tracedeps"
install=
source="
https://github.com/torvalds/linux/archive/${_hash}.zip
$_config
"
subpackages=""
license="GPL2"
_abi_release=${pkgver}
_carch="arm"
HOSTCC="${CC:-gcc}"
HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
ksrcdir="$srcdir/linux-${pkgver}"
prepare() {
local _patch_failed=
cd "$ksrcdir"
# first apply patches in specified order
for i in $source; do
case $i in
*.patch)
msg "Applying $i..."
if ! patch -s -p1 -N -i "$srcdir"/$i; then
echo $i >>failed
_patch_failed=1
fi
;;
esac
done
if ! [ -z "$_patch_failed" ]; then
error "The following patches failed:"
cat failed
return 1
fi
# gcc6 support
# cp -v "$srcdir/compiler-gcc6.h" "$ksrcdir/include/linux/"
mkdir -p "$srcdir"/build
cp "$srcdir"/$_config "$srcdir"/build/.config || return 1
rm "$ksrcdir"/arch/arm/boot/dts/include/dt-bindings
ln -s "$ksrcdir"/include/dt-bindings "$ksrcdir"/arch/arm/boot/dts/include/
make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" CROSS_COMPILE=arm-linux-gnueabi- \
silentoldconfig
}
# this is so we can do: 'abuild menuconfig' to reconfigure kernel
menuconfig() {
cd "$srcdir"/build || return 1
make ARCH="$_carch" menuconfig
cp .config "$startdir"/$_config
}
build() {
cd "$srcdir"/build
unset LDFLAGS
make ARCH="$_carch" CC="${CC:-gcc}" \
KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" \
|| return 1
}
package() {
install -Dm644 "$srcdir/build/arch/arm/boot/zImage" \
"$pkgdir/boot/vmlinuz-$_flavor"
install -D "$srcdir/build/include/config/kernel.release" \
"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
}
sha512sums="bfce6c290a7d372a018599fb835800a2cb5c3488883f4bd55c78b2197c6fb9420a8ac2f7740c054330948c62f0ffeafccdd386b6b57e8e4e794a74abb0ff12f6 v4.11.zip
ab220bd127daf0eb3b97279d6f050b520a0cf51c7f25ac2dae3ad038644344dbbe42a62fc8a258f4be1cedc5713ffff479bdbc8ea4c13974b67988f4f7fcd02a config-lg-hammerhead.armhf"

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// SOURCE:
// https://github.com/NextThingCo/CHIP-u-boot/issues/10#issuecomment-287515505
#ifndef __LINUX_COMPILER_H
#error "Please don't include <linux/compiler-gcc6.h> directly, include <linux/compiler.h> instead."
#endif
#define __used __attribute__((__used__))
#define __must_check __attribute__((warn_unused_result))
#define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
/* Mark functions as cold. gcc will assume any path leading to a call
to them will be unlikely. This means a lot of manual unlikely()s
are unnecessary now for any paths leading to the usual suspects
like BUG(), printk(), panic() etc. [but let's keep them for now for
older compilers]
Early snapshots of gcc 4.3 don't support this and we can't detect this
in the preprocessor, but we can live with this because they're unreleased.
Maketime probing would be overkill here.
gcc also has a __attribute__((__hot__)) to move hot functions into
a special section, but I don't see any sense in this right now in
the kernel context */
#define __cold __attribute__((__cold__))
#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
#ifndef __CHECKER__
# define __compiletime_warning(message) __attribute__((warning(message)))
# define __compiletime_error(message) __attribute__((error(message)))
#endif /* __CHECKER__ */
/*
* Mark a position in code as unreachable. This can be used to
* suppress control flow warnings after asm blocks that transfer
* control elsewhere.
*
* Early snapshots of gcc 4.5 don't support this and we can't detect
* this in the preprocessor, but we can live with this because they're
* unreleased. Really, we need to have autoconf for the kernel.
*/
#define unreachable() __builtin_unreachable()
/* Mark a function definition as prohibited from being cloned. */
#define __noclone __attribute__((__noclone__))
/*
* Tell the optimizer that something else uses this function or variable.
*/
#define __visible __attribute__((externally_visible))
/*
* GCC 'asm goto' miscompiles certain code sequences:
*
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
*
* Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
*
* (asm goto is automatically volatile - the naming reflects this.)
*/
#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
#define __HAVE_BUILTIN_BSWAP32__
#define __HAVE_BUILTIN_BSWAP64__
#define __HAVE_BUILTIN_BSWAP16__
#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */

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