[PATCH 2/9] Add workaround for cross-building riscv64

[Jan Kiszka <jan.kiszka@siemens.com>]

From: Jan Kiszka <jan.kiszka@siemens.com>

As Debian unstable does not care for riscv64 packages being in sync with
other archs, cross-building is generally broken. However, we are at
least currently just one package away from an essential crossbuild env,
and that is libkeyutils1. By rebuilding that package from source for
riscv64, non-cross, and then using it for sbuild-chroot-host, we can
start building the kernel and firmware packages cross again.

This patch should be removed again once riscv64 hits trixie, thus
testing. But that may take some more moons, and we will benefit greatly
from having a workaround until then to fix and improve other topics
around that arch.

See also https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1059698 for
more background.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
CC: Helmut Grohne <helmut@subdivi.de>
---
 meta/recipes-devtools/keyutils/keyutils.bb          | 13 +++++++++++++
 .../sbuild-chroot/sbuild-chroot-host.bb             |  2 ++
 2 files changed, 15 insertions(+)
 create mode 100644 meta/recipes-devtools/keyutils/keyutils.bb

diff --git a/meta/recipes-devtools/keyutils/keyutils.bb b/meta/recipes-devtools/keyutils/keyutils.bb
new file mode 100644
index 00000000..e3c8e909
--- /dev/null
+++ b/meta/recipes-devtools/keyutils/keyutils.bb
@@ -0,0 +1,13 @@
+# This software is a part of ISAR.
+# Copyright (c) Siemens AG, 2023
+#
+# SPDX-License-Identifier: MIT
+
+inherit dpkg
+
+SRC_URI = "apt://${PN}"
+
+PROVIDES += "libkeyutils1 libkeyutils-dev"
+
+ISAR_CROSS_COMPILE = "0"
+DEB_BUILD_OPTIONS += "nocheck"
diff --git a/meta/recipes-devtools/sbuild-chroot/sbuild-chroot-host.bb b/meta/recipes-devtools/sbuild-chroot/sbuild-chroot-host.bb
index 255d6937..b61e3634 100644
--- a/meta/recipes-devtools/sbuild-chroot/sbuild-chroot-host.bb
+++ b/meta/recipes-devtools/sbuild-chroot/sbuild-chroot-host.bb
@@ -24,3 +24,5 @@ SBUILD_CHROOT_PREINSTALL:riscv64 ?= " \
     gcc-riscv64-linux-gnu \
     g++-riscv64-linux-gnu \
     dpkg-cross"
+
+DEPENDS:append:riscv64 = " keyutils"
-- 
2.35.3