Bump buildroot to 2020.11-rc1 (#985)

* Update buildroot-patches for 2020.11-rc1 buildroot

* Update buildroot to 2020.11-rc1

Signed-off-by: Stefan Agner <stefan@agner.ch>

* Don't rely on sfdisk --list-free output

The --list-free (-F) argument does not allow machine readable mode. And
it seems that the output format changes over time (different spacing,
using size postfixes instead of raw blocks).

Use sfdisk json output and calculate free partition space ourselfs. This
works for 2.35 and 2.36 and is more robust since we rely on output which
is meant for scripts to parse.

* Migrate defconfigs for Buildroot 2020.11-rc1

In particular, rename BR2_TARGET_UBOOT_BOOT_SCRIPT(_SOURCE) to
BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT(_SOURCE).

* Rebase/remove systemd patches for systemd 246

* Drop apparmor/libapparmor from buildroot-external

* hassos-persists: use /run as directory for lockfiles

The U-Boot tools use /var/lock by default which is not created any more
by systemd by default (it is under tmpfiles legacy.conf, which we no
longer install).

* Disable systemd-update-done.service

The service is not suited for pure read-only systems. In particular the
service needs to be able to write a file in /etc and /var. Remove the
service. Note: This is a static service and cannot be removed using
systemd-preset.

* Disable apparmor.service for now

The service loads all default profiles. Some might actually cause
problems. E.g. the profile for ping seems not to match our setup for
/etc/resolv.conf:
[85503.634653] audit: type=1400 audit(1605286002.684:236): apparmor="DENIED" operation="open" profile="ping" name="/run/resolv.conf" pid=27585 comm="ping" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

buildroot/package/libblockdev/0001-Provide-replacement-function-for-strerror_l.patch

@@ -0,0 +1,69 @@
+From ccf93148aa3587dd98a02e253cdc42a7af14df1e Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+Date: Sat, 29 Aug 2020 16:04:15 +0200
+Subject: [PATCH] Provide replacement function for strerror_l()
+
+strerror_l() is not implemented in some C libraries, such as uClibc,
+so let's provide a simple replacement function that falls back on
+strerror().
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ configure.ac         | 2 ++
+ src/plugins/crypto.c | 7 +++++++
+ src/utils/module.c   | 8 ++++++++
+ 3 files changed, 17 insertions(+)
+
+diff --git a/configure.ac b/configure.ac
+index c2d22c2..36aeb51 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -137,6 +137,8 @@ AC_CHECK_HEADERS([dlfcn.h string.h unistd.h sys/fcntl.h sys/ioctl.h linux/random
+                  [LIBBLOCKDEV_SOFT_FAILURE([Header file $ac_header not found.])],
+                  [])
+ 
++AC_CHECK_FUNCS([strerror_l])
++
+ AC_ARG_WITH([bcache],
+     AS_HELP_STRING([--with-bcache], [support bcache @<:@default=yes@:>@]),
+     [],
+diff --git a/src/plugins/crypto.c b/src/plugins/crypto.c
+index f4a2e8f..c1bd7b5 100644
+--- a/src/plugins/crypto.c
++++ b/src/plugins/crypto.c
+@@ -52,6 +52,13 @@
+ 
+ #define UNUSED __attribute__((unused))
+ 
++#if !defined(HAVE_STRERROR_L)
++static char *strerror_l(int errnum, locale_t locale UNUSED)
++{
++	return strerror(errnum);
++}
++#endif
++
+ /**
+  * SECTION: crypto
+  * @short_description: plugin for operations with encrypted devices
+diff --git a/src/utils/module.c b/src/utils/module.c
+index 9750e24..086bec0 100644
+--- a/src/utils/module.c
++++ b/src/utils/module.c
+@@ -27,6 +27,14 @@
+ 
+ #include "module.h"
+ 
++#define UNUSED __attribute__((unused))
++
++#if !defined(HAVE_STRERROR_L)
++static char *strerror_l(int errnum, locale_t locale UNUSED)
++{
++	return strerror(errnum);
++}
++#endif
+ 
+ /**
+  * bd_utils_module_error_quark: (skip)
+-- 
+2.26.2
+

buildroot/package/libblockdev/Config.in

@@ -0,0 +1,72 @@
+config BR2_PACKAGE_LIBBLOCKDEV
+	bool "libblockdev"
+	depends on !BR2_STATIC_LIBS # kmod
+	depends on BR2_USE_WCHAR # libglib2
+	depends on BR2_TOOLCHAIN_HAS_THREADS # libglib2
+	depends on BR2_USE_MMU # libglib2
+	depends on BR2_PACKAGE_HAS_UDEV
+	select BR2_PACKAGE_KMOD
+	select BR2_PACKAGE_LIBGLIB2
+	help
+	  libblockdev is a C library supporting GObject introspection
+	  for manipulation of block devices. It has a plugin-based
+	  architecture where each technology (like LVM, Btrfs, MD RAID,
+	  Swap,...) is implemented in a separate plugin, possibly with
+	  multiple implementations.
+
+	  https://github.com/storaged-project/libblockdev/
+
+if BR2_PACKAGE_LIBBLOCKDEV
+
+comment "plugins"
+
+config BR2_PACKAGE_LIBBLOCKDEV_CRYPTO
+	bool "crypto"
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # cryptsetup -> json-c
+	select BR2_PACKAGE_CRYPTSETUP
+
+config BR2_PACKAGE_LIBBLOCKDEV_FS
+	bool "filesystem"
+	depends on BR2_ENABLE_LOCALE # parted
+	select BR2_PACKAGE_UTIL_LINUX
+	select BR2_PACKAGE_UTIL_LINUX_LIBMOUNT
+	select BR2_PACKAGE_PARTED
+
+comment "filesystem plugin needs a toolchain w/ locale"
+	depends on !BR2_ENABLE_LOCALE
+
+config BR2_PACKAGE_LIBBLOCKDEV_LOOP
+	bool "loop"
+
+config BR2_PACKAGE_LIBBLOCKDEV_LVM2
+	bool "lvm2"
+	depends on BR2_ENABLE_LOCALE # parted
+	select BR2_PACKAGE_PARTED
+	select BR2_PACKAGE_LVM2
+
+comment "lvm2 support needs a toolchain w/ locale"
+	depends on !BR2_ENABLE_LOCALE
+
+config BR2_PACKAGE_LIBBLOCKDEV_MDRAID
+	bool "mdraid"
+	select BR2_PACKAGE_LIBBYTESIZE
+
+config BR2_PACKAGE_LIBBLOCKDEV_PART
+	bool "part"
+	depends on BR2_ENABLE_LOCALE # parted
+	select BR2_PACKAGE_PARTED
+
+comment "part plugin needs a toolchain w/ locale"
+	depends on !BR2_ENABLE_LOCALE
+
+config BR2_PACKAGE_LIBBLOCKDEV_SWAP
+	bool "swap"
+	select BR2_PACKAGE_UTIL_LINUX
+	select BR2_PACKAGE_UTIL_LINUX_LIBBLKID
+
+endif
+
+comment "libblockdev needs udev /dev management and a toolchain w/ wchar, threads, dynamic library"
+	depends on BR2_USE_MMU
+	depends on !BR2_PACKAGE_HAS_UDEV || BR2_STATIC_LIBS || \
+		!BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS

buildroot/package/libblockdev/libblockdev.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  dc207c70dbef52c818a8abbcb6b8e298a6b63c0b78a5e1f2773b5f7b89300773  libblockdev-2.24.tar.gz
+sha256  97bdc721d875501b6243a456333fdfdb1ab64d31c4da2554de845caf4674b946  LICENSE

buildroot/package/libblockdev/libblockdev.mk

@@ -0,0 +1,82 @@
+################################################################################
+#
+# libblockdev
+#
+################################################################################
+
+LIBBLOCKDEV_VERSION = 2.24
+LIBBLOCKDEV_SITE = https://github.com/storaged-project/libblockdev/releases/download/$(LIBBLOCKDEV_VERSION)-1
+LIBBLOCKDEV_LICENSE = LGPL-2.1
+LIBBLOCKDEV_LICENSE_FILES = LICENSE
+LIBBLOCKDEV_INSTALL_STAGING = YES
+LIBBLOCKDEV_DEPENDENCIES = host-pkgconf libglib2 kmod udev
+# 0001-Provide-replacement-function-for-strerror_l.patch
+LIBBLOCKDEV_AUTORECONF = YES
+
+LIBBLOCKDEV_CONF_OPTS = \
+	--disable-introspection \
+	--with-loop \
+	--without-bcache \
+	--without-btrfs \
+	--without-dm \
+	--without-dmraid \
+	--without-escrow \
+	--without-kbd \
+	--without-lvm_dbus \
+	--without-mpath \
+	--without-nvdimm \
+	--without-python2 \
+	--without-python3 \
+	--without-s390 \
+	--without-tools \
+	--without-vdo
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_CRYPTO),y)
+LIBBLOCKDEV_DEPENDENCIES += cryptsetup
+LIBBLOCKDEV_CONF_OPTS += --with-crypto
+else
+LIBBLOCKDEV_CONF_OPTS += --without-crypto
+endif
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_FS),y)
+LIBBLOCKDEV_DEPENDENCIES += parted util-linux
+LIBBLOCKDEV_CONF_OPTS += --with-fs
+else
+LIBBLOCKDEV_CONF_OPTS += --without-fs
+endif
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_LOOP),y)
+LIBBLOCKDEV_CONF_OPTS += --with-loop
+else
+LIBBLOCKDEV_CONF_OPTS += --without-loop
+endif
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_LVM2),y)
+LIBBLOCKDEV_DEPENDENCIES += lvm2 parted
+LIBBLOCKDEV_CONF_OPTS += --with-lvm
+else
+LIBBLOCKDEV_CONF_OPTS += --without-lvm
+endif
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_MDRAID),y)
+LIBBLOCKDEV_DEPENDENCIES += libbytesize
+LIBBLOCKDEV_CONF_OPTS += --with-mdraid
+else
+LIBBLOCKDEV_CONF_OPTS += --without-mdraid
+endif
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_PART),y)
+LIBBLOCKDEV_DEPENDENCIES += parted
+LIBBLOCKDEV_CONF_OPTS += --with-part
+else
+LIBBLOCKDEV_CONF_OPTS += --without-part
+endif
+
+ifeq ($(BR2_PACKAGE_LIBBLOCKDEV_SWAP),y)
+LIBBLOCKDEV_DEPENDENCIES += util-linux
+LIBBLOCKDEV_CONF_OPTS += --with-swap
+else
+LIBBLOCKDEV_CONF_OPTS += --without-swap
+endif
+
+$(eval $(autotools-package))