amazon-tate: new device (MR 5473)

device/testing/device-amazon-tate/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-amazon-tate
+pkgdesc="Amazon Kindle Fire HD (2nd Generation)"
+pkgver=1
+pkgrel=1
+url="https://postmarketos.org"
+license="MIT"
+arch="armv7"
+options="!check !archcheck"
+depends="
+	postmarketos-base
+	linux-amazon-tate
+	mkbootimg
+"
+makedepends="devicepkg-dev"
+source="
+	deviceinfo
+	initfs-hook.sh
+	amazon-omap-boot-hack.sh
+"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+	install -Dm755 "$srcdir/amazon-omap-boot-hack.sh" "$pkgdir/usr/share/mkinitfs/amazon-omap-boot-hack.sh"
+}
+
+sha512sums="
+2e06c09046be664bbba5d55aafb06aceafbf41777bf116caa508d461190d546cc7ceae5160f0582dee20d88b5998837c00ffc3de928d1e5892bb32485523ce79  deviceinfo
+1aca985770246b9ca140996a498815b5c9ca3458a6cb84db85825344f01deda8b1de7c88e2e0c610df636ad2179faac7fd90d9992add51186a6449f2d43a3f71  initfs-hook.sh
+a5027ac9f113018d55e4c5fc065b0498d0a50df099a348fe38d6b841087aa285a8d67b400b9fe88007f41d0fd79c2fe69d62300af6963ecb40c5fb2353cbabf1  amazon-omap-boot-hack.sh
+"

device/testing/device-amazon-tate/amazon-omap-boot-hack.sh

+#!/bin/sh
+
+echo "==> Amending boot.img for Amazon signature verification exploit"
+BOWSER_HEADER_DATA='\x50\x03\x00\x00\x00\x25\xe4\x00'
+BOWSER_HEADER_SIZE=1024
+BOWSER_HEADER_OFFSET=52
+tempfile=$(mktemp)
+bootimgfile=$(echo "${1}" | sed 's/initramfs/boot.img/g')
+dd if=/dev/zero of="${tempfile}" bs=$BOWSER_HEADER_SIZE count=1
+printf "%b" $BOWSER_HEADER_DATA | dd of="${tempfile}" bs=$BOWSER_HEADER_OFFSET seek=1 conv=notrunc
+cat "${bootimgfile}" >> "${tempfile}"
+mv "${tempfile}" "${bootimgfile}"

device/testing/device-amazon-tate/deviceinfo

+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell
+# scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Amazon Kindle Fire HD (2nd Generation)"
+deviceinfo_manufacturer="Amazon"
+deviceinfo_codename="amazon-tate"
+deviceinfo_year="2012"
+deviceinfo_arch="armv7"
+
+# Device related
+deviceinfo_gpu_accelerated="false"
+deviceinfo_chassis="tablet"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="false"
+deviceinfo_screen_width="800"
+deviceinfo_screen_height="1280"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=tty0 ignore_loglevel mem=1G init=/init"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_bootimg_mtk_mkimage="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_mkinitfs_postprocess="/usr/share/mkinitfs/amazon-omap-boot-hack.sh"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+
+# Lab126, Inc.
+deviceinfo_usb_idVendor="0x1949"
+# Kindle
+deviceinfo_usb_idProduct="0x0007"
+

device/testing/device-amazon-tate/initfs-hook.sh

+#!/bin/sh
+
+# Turn overlay0 off and on again to remove bootloader screen
+echo 0 > /sys/devices/platform/omapdss/overlay0/enabled
+echo 1 > /sys/devices/platform/omapdss/overlay0/enabled

device/testing/linux-amazon-tate/APKBUILD

+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm/configs/android_tate_defconfig
+
+pkgname=linux-amazon-tate
+pkgver=3.0.72
+pkgrel=1
+pkgdesc="Amazon Kindle Fire HD (2nd Generation) kernel fork"
+arch="armv7"
+_carch="arm"
+_flavor="amazon-tate"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps pmb:cross-native"
+makedepends="bash bc bison devicepkg-dev flex openssl-dev perl xz gcc6"
+
+# Compiler: GCC 6 (doesn't boot when compiled with newer versions)
+if [ "${CC:0:5}" != "gcc6-" ]; then
+	CC="gcc6-$CC"
+	HOSTCC="gcc6-gcc"
+	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
+fi
+
+# Source
+_repository="android_kernel_amazon_bowser-common"
+_commit="1364d678a9f79abb6ab9310669700e6fabb51a24"
+_config="config-$_flavor.$arch"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/$_repository/archive/$_commit.tar.gz
+	$_config
+	gcc10-extern_YYLOC_global_declaration.patch
+	kernel-use-the-gnu89-standard-explicitly.patch
+	linux3.0-fix-piggy.lzma.S.patch
+	linux3.0-fix-piggy.lzo.S.patch
+	tate-fix-sun-solaris-style-flag-on-section.patch
+	revert_sysfs_readdir_lseek_race_fix.patch
+	ifdef-audio-dep-hdmi.patch
+"
+builddir="$srcdir/$_repository-$_commit"
+_outdir="out"
+
+prepare() {
+	default_prepare
+	. downstreamkernel_prepare
+}
+
+build() {
+	unset LDFLAGS
+	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
+		CFLAGS_MODULE=-fno-pic \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+}
+
+package() {
+	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" "$_flavor" "$_outdir"
+
+	make modules_install \
+		O="$_outdir" ARCH="$_carch" \
+		CC="${CC:-gcc}" \
+                KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" \
+		INSTALL_MOD_STRIP=1 \
+		INSTALL_MOD_PATH="$pkgdir"
+}
+
+sha512sums="
+4a50a9beb3238adaf19b222e66216ce4ddee930d21f8d80ad43bcd557a7ba169687d3cb61479a7d2e79f898c9416a4fe520e0d681f46bb4370956c16cc36a47c  linux-amazon-tate-1364d678a9f79abb6ab9310669700e6fabb51a24.tar.gz
+f5fb6d2f80b635f813151c03014e628467a3f17e5958043155d270078d2146a28b6c055bf8f61d28d04e37857d8219c9e8381145320c65240e8ae67126d374fa  config-amazon-tate.armv7
+2b48f1bf0e3f70703d2cdafc47d5e615cc7c56c70bec56b2e3297d3fa4a7a1321d649a8679614553dde8fe52ff1051dae38d5990e3744c9ca986d92187dcdbeb  gcc10-extern_YYLOC_global_declaration.patch
+ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c  kernel-use-the-gnu89-standard-explicitly.patch
+3c098328e45db14cbeff6a515bb373129e0d0983884178f413c5a4206704b356ddecdf58557a04b828b391dbfef3cea0e98b47834aa97b86496aa2fce0013b92  linux3.0-fix-piggy.lzma.S.patch
+8837c884060d87232ba3fa9fce0e815d7ddf33c82ad49260426fe83754baa2f4d92a36a17561083ac8b3674564b7433b3141cacc63b520deec52bbcc1d92d5c9  linux3.0-fix-piggy.lzo.S.patch
+2027d4a68d9537b9d487572c8de6a68e9608087156b4fbc185cd6bd9df2dd4147d9f0e517fd50e653c4d73584df3977d739561446ee00c9409015ffa138f732b  tate-fix-sun-solaris-style-flag-on-section.patch
+03a694cf3a6659afc6439df3cfff3c37b6bdcce05cd6286b97c8fc1892a8c3985bfce64e574a23ba79de8bd614f4b5b57fb9dd18b8640ef8786f533e5c88530d  revert_sysfs_readdir_lseek_race_fix.patch
+d4e6b179e3fc875c4aa5ac204c3cb9d14c85fa66b0d5ded55a10ab3f342f953083635a575fbc5092b66e5994a037b670b68cdb5217356db10eae587d306738aa  ifdef-audio-dep-hdmi.patch
+"

device/testing/linux-amazon-tate/gcc10-extern_YYLOC_global_declaration.patch

+../../.shared-patches/linux/gcc10-extern_YYLOC_global_declaration.patch
\ No newline at end of file

device/testing/linux-amazon-tate/ifdef-audio-dep-hdmi.patch

+Ifdef a few HDMI audio function calls behind the relevant SoC HDMI audio flag.
+Temporarily needed to avoid kernel hangs caused by interacting with audio.
+diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c
+index 8503459e83c..696629debde 100644
+--- a/drivers/video/omap2/dss/hdmi_panel.c
++++ b/drivers/video/omap2/dss/hdmi_panel.c
+@@ -42,7 +42,9 @@ static ssize_t hdmi_audio_max_channel_show(struct device *dev,
+ 		struct device_attribute *attr, char *buf)
+ {
+ 	int r;
++#ifdef CONFIG_SND_OMAP_SOC_OMAP4_HDMI
+ 	r = hdmi_audio_get_max_channels();
++#endif
+ 	return snprintf(buf, PAGE_SIZE, "%d\n", r);
+ }
+ 
+@@ -335,7 +337,9 @@ static void hdmi_hotplug_detect_worker(struct work_struct *work)
+ 			mutex_unlock(&hdmi.hdmi_lock);
+ 			dssdev->driver->disable(dssdev);
+ 			omapdss_hdmi_enable_s3d(false);
++#ifdef CONFIG_SND_OMAP_SOC_OMAP4_HDMI
+ 			hdmi_audio_update_edid_info();
++#endif
+ 			mutex_lock(&hdmi.hdmi_lock);
+ 		}
+ 		goto done;
+@@ -358,7 +362,9 @@ static void hdmi_hotplug_detect_worker(struct work_struct *work)
+ 					dssdev->panel.monspecs.max_x * 10000;
+ 			dssdev->panel.height_in_um =
+ 					dssdev->panel.monspecs.max_y * 10000;
++#ifdef CONFIG_SND_OMAP_SOC_OMAP4_HDMI
+ 			hdmi_audio_update_edid_info();
++#endif
+ 			hdmi_inform_hpd_to_cec(true);
+ 			switch_set_state(&hdmi.hpd_switch, 1);
+ 			goto done;

device/testing/linux-amazon-tate/kernel-use-the-gnu89-standard-explicitly.patch

+../../.shared-patches/linux/kernel-use-the-gnu89-standard-explicitly.patch
\ No newline at end of file

device/testing/linux-amazon-tate/linux3.0-fix-piggy.lzma.S.patch

+../../.shared-patches/linux/linux3.0-fix-piggy.lzma.S.patch
\ No newline at end of file

device/testing/linux-amazon-tate/linux3.0-fix-piggy.lzo.S.patch

+../../.shared-patches/linux/linux3.0-fix-piggy.lzo.S.patch
\ No newline at end of file

device/testing/linux-amazon-tate/revert_sysfs_readdir_lseek_race_fix.patch

+commit bb5489176fda28aff304b59e0405f7d7d4906224
+Author: Jiri Kosina <jkosina@suse.cz>
+Date:   Mon Apr 22 15:40:15 2013 +0200
+
+    Revert "sysfs: fix race between readdir and lseek"
+    
+    This reverts commit 991f76f837bf22c5bb07261cfd86525a0a96650c in Linus'
+    tree which is f366c8f271888f48e15cc7c0ab70f184c220c8a4 in
+    linux-stable.git
+    
+    It depends on ef3d0fd27e90f ("vfs: do (nearly) lockless generic_file_llseek")
+    which is available only in 3.2+.
+    
+    When applied on 3.0 codebase, it causes A-A deadlock, whenever anyone does
+    seek() on sysfs, as both generic_file_llseek() and sysfs_dir_llseek() obtain
+    i_mutex.
+    
+    Signed-off-by: Jiri Kosina <jkosina@suse.cz>
+    Cc: Jiri Slaby <jslaby@suse.cz>
+    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
+index 7cbc5856feea..3ab78b873376 100644
+--- a/fs/sysfs/dir.c
++++ b/fs/sysfs/dir.c
+@@ -959,21 +959,9 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
+ 	return 0;
+ }
+ 
+-static loff_t sysfs_dir_llseek(struct file *file, loff_t offset, int whence)
+-{
+-	struct inode *inode = file->f_path.dentry->d_inode;
+-	loff_t ret;
+-
+-	mutex_lock(&inode->i_mutex);
+-	ret = generic_file_llseek(file, offset, whence);
+-	mutex_unlock(&inode->i_mutex);
+-
+-	return ret;
+-}
+-
+ const struct file_operations sysfs_dir_operations = {
+ 	.read		= generic_read_dir,
+ 	.readdir	= sysfs_readdir,
+ 	.release	= sysfs_dir_release,
+-	.llseek		= sysfs_dir_llseek,
++	.llseek		= generic_file_llseek,
+ };

device/testing/linux-amazon-tate/tate-fix-sun-solaris-style-flag-on-section.patch

+Replace Solaris-style section flags with GNU equivalent.
+
+The regular version in shared-patches doesn't apply cleanly to this kernel tree,
+so a separate patch is needed.
+diff --git a/arch/arm/boot/compressed/big-endian.S b/arch/arm/boot/compressed/big-endian.S
+index 25ab26f1c6f..f22428e275f 100644
+--- a/arch/arm/boot/compressed/big-endian.S
++++ b/arch/arm/boot/compressed/big-endian.S
+@@ -5,7 +5,7 @@
+  *  Author: Nicolas Pitre
+  */
+ 
+-	.section ".start", #alloc, #execinstr
++	.section ".start", "ax"
+ 
+ 	mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+ 	orr	r0, r0, #(1 << 7)	@ enable big endian mode
+diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
+index caddb9d35b7..3ba2ca1b202 100644
+--- a/arch/arm/boot/compressed/head.S
++++ b/arch/arm/boot/compressed/head.S
+@@ -112,7 +112,7 @@
+ #endif
+ 		.endm
+ 
+-		.section ".start", #alloc, #execinstr
++		.section ".start", "ax"
+ /*
+  * sort out different calling conventions
+  */
+diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
+index f649f1c589e..3ec865c11c9 100644
+--- a/arch/arm/mm/proc-v7.S
++++ b/arch/arm/mm/proc-v7.S
+@@ -477,7 +477,7 @@ cpu_elf_name:
+ 	.size	cpu_elf_name, . - cpu_elf_name
+ 	.align
+ 
+-	.section ".proc.info.init", #alloc, #execinstr
++	.section ".proc.info.init", "ax"
+ 
+ 	.type   __v7_ca9mp_proc_info, #object
+ __v7_ca9mp_proc_info: