ZFS bitbake recipe

0001-Fix-aarch64-support.patch

From 290d74cee9f95f3eb859e066ed7024435e70fc64 Mon Sep 17 00:00:00 2001
From: Windel Bouwman <windel@windel.nl>
Date: Fri, 25 Feb 2022 09:43:41 +0100
Subject: [PATCH] Fix aarch64 support.

---
 include/os/linux/spl/sys/isa_defs.h | 23 +++++++++++++++--------
 lib/libefi/rdwr_efi.c               |  2 +-
 lib/libspl/include/sys/isa_defs.h   | 25 +++++++++++++++++--------
 3 files changed, 33 insertions(+), 17 deletions(-)

diff --git a/include/os/linux/spl/sys/isa_defs.h b/include/os/linux/spl/sys/isa_defs.h
index 2207ee2..a032aae 100644
--- a/include/os/linux/spl/sys/isa_defs.h
+++ b/include/os/linux/spl/sys/isa_defs.h
@@ -95,7 +95,7 @@
 #define	_ALIGNMENT_REQUIRED	1
 
 /* arm arch specific defines */
-#elif defined(__arm) || defined(__arm__) || defined(__aarch64__)
+#elif defined(__arm) || defined(__arm__)
 
 #if !defined(__arm)
 #define	__arm
@@ -105,17 +105,11 @@
 #define	__arm__
 #endif
 
-#if defined(__aarch64__)
-#if !defined(_LP64)
-#define	_LP64
-#endif
-#else
 #if !defined(_ILP32)
 #define	_ILP32
 #endif
-#endif
 
-#if defined(__ARMEL__) || defined(__AARCH64EL__)
+#if defined(__ARMEL__)
 #define	_ZFS_LITTLE_ENDIAN
 #else
 #define	_ZFS_BIG_ENDIAN
@@ -127,6 +121,19 @@
  */
 #define	_ALIGNMENT_REQUIRED	1
 
+/* aarch64 arch specific defines */
+#elif defined(__aarch64__)
+
+#if !defined(_LP64)
+#define	_LP64
+#endif
+
+#if defined(__AARCH64EL__)
+#define	_ZFS_LITTLE_ENDIAN
+#else
+#define	_ZFS_BIG_ENDIAN
+#endif
+
 /* sparc arch specific defines */
 #elif defined(__sparc) || defined(__sparc__)
 
diff --git a/lib/libefi/rdwr_efi.c b/lib/libefi/rdwr_efi.c
index 39b3509..1ff806b 100644
--- a/lib/libefi/rdwr_efi.c
+++ b/lib/libefi/rdwr_efi.c
@@ -157,7 +157,7 @@ struct dk_map2  default_vtoc_map[NDKMAP] = {
 
 #if defined(i386) || defined(__amd64) || defined(__arm) || \
     defined(__powerpc) || defined(__sparc) || defined(__s390__) || \
-    defined(__mips__) || defined(__rv64g__)
+    defined(__mips__) || defined(__rv64g__) || defined(__aarch64__)
 	{	V_BOOT,		V_UNMNT	},		/* i - 8 */
 	{	V_ALTSCTR,	0	},		/* j - 9 */
 
diff --git a/lib/libspl/include/sys/isa_defs.h b/lib/libspl/include/sys/isa_defs.h
index 8c0932f..3922445 100644
--- a/lib/libspl/include/sys/isa_defs.h
+++ b/lib/libspl/include/sys/isa_defs.h
@@ -126,7 +126,7 @@ extern "C" {
 #endif
 
 /* arm arch specific defines */
-#elif defined(__arm) || defined(__arm__) || defined(__aarch64__)
+#elif defined(__arm) || defined(__arm__)
 
 #if !defined(__arm)
 #define	__arm
@@ -136,17 +136,11 @@ extern "C" {
 #define	__arm__
 #endif
 
-#if defined(__aarch64__)
-#if !defined(_LP64)
-#define	_LP64
-#endif
-#else
 #if !defined(_ILP32)
 #define	_ILP32
 #endif
-#endif
 
-#if defined(__ARMEL__) || defined(__AARCH64EL__)
+#if defined(__ARMEL__)
 #define	_ZFS_LITTLE_ENDIAN
 #else
 #define	_ZFS_BIG_ENDIAN
@@ -158,6 +152,21 @@ extern "C" {
 #define	HAVE_EFFICIENT_UNALIGNED_ACCESS
 #endif
 
+/* aarch64 arch specific defines */
+#elif defined(__aarch64__)
+
+#if !defined(_LP64)
+#define	_LP64
+#endif
+
+#if defined(__AARCH64EL__)
+#define	_ZFS_LITTLE_ENDIAN
+#else
+#define	_ZFS_BIG_ENDIAN
+#endif
+
+#define	_SUNOS_VTOC_16
+
 /* sparc arch specific defines */
 #elif defined(__sparc) || defined(__sparc__)
 

zfs_2.1.2.bb

SUMMARY = "OpenZFS on Linux and FreeBSD"
DESCRIPTION = "OpenZFS on Linux and FreeBSD"
LICENSE = "CDDL-1.0"
LIC_FILES_CHKSUM = "file://LICENSE;md5=7087caaf1dc8a2856585619f4a787faa"

SRC_URI = "https://github.com/openzfs/zfs/releases/download/${BPN}-${PV}/${BPN}-${PV}.tar.gz \
           file://0001-Fix-aarch64-support.patch \
           "
SRC_URI[sha256sum] = "258cf1d17a1f668a3b99b61eaf14be06c614df42503db0319bef1b9fc4c8b9e7"

# Using both 'module' and 'autotools' classes seems a bit odd, the both
# define a do_compile function.
# That's why we opt for module-base, also this prevents module splitting.
inherit module-base pkgconfig autotools

DEPENDS = "virtual/kernel zlib util-linux libtirpc openssl"

EXTRA_OECONF:append = " \
    --disable-pyzfs \
    --with-linux=${STAGING_KERNEL_DIR} --with-linux-obj=${STAGING_KERNEL_BUILDDIR} \
    --enable-systemd \
    --disable-sysvinit \
    --without-dracutdir \
    "

do_install:append() {
    # /usr/share/zfs contains the zfs-tests folder which we do not need:
    rm -rf ${D}${datadir}/zfs

    rm -rf ${D}${datadir}/initramfs-tools
}

FILES:${PN} += "\
    ${base_sbindir}/* \
    ${base_libdir}/* \
    ${sysconfdir}/* \
    ${sbindir}/* \
    ${bindir}/* \
    ${libexecdir}/${BPN}/* \
    ${libdir}/* \
    "

FILES:${PN}-dev += "\
    ${prefix}/src/zfs-${PV}/* \
    ${prefix}/src/spl-${PV}/* \
    "

Hey guys,

i am new to yocto and i am trying to build zfs. How can i apply the patch and what should i have to do with the .bb-file? Simple implement it as a reciepe und bitbake it like always? Would it be even possible to load zfs out of initramfs?

Thank you very much in advance and best regards,

Chris

Hi Chris,

The purpose of this recipe is to place it into your own layer, and include it like that in your system.

Please check on the yocto manuals / tutorials, highly recommended if you are new to yocto. Please note that yocto has some sort of steep learning curve.

Best regards,
Windel