[Buildroot] [PATCHv2] package/zfs: Fix cross-platform-compilations

Romain Naour romain.naour at gmail.com
Fri Aug 27 09:17:43 UTC 2021


From: José Luis Salvador Rufo <salvador.joseluis at gmail.com>

This patch fixes the `make` executed from the `kernel.m4` in
cross-platform-compilations environments:
https://github.com/openzfs/zfs/blob/zfs-2.0.5/config/kernel.m4#L588

Fixes:
https://gitlab.com/kubu93/buildroot/-/jobs/1522848483

Signed-off-by: José Luis Salvador Rufo <salvador.joseluis at gmail.com>
Signed-off-by: Romain Naour <romain.naour at gmail.com>
---
v2: add a patch to remove DESTDIR used with INSTALL_MOD_PATH
    Use LINUX_MAKE_FLAGS for ZFS_MAKE_ENV and ZFS_CONF_ENV
    http://lists.busybox.net/pipermail/buildroot/2021-August/621350.html
---
 ...in-don-t-use-DESTDIR-and-INSTALL_MOD.patch | 44 +++++++++++++++++++
 package/zfs/zfs.mk                            |  5 +++
 2 files changed, 49 insertions(+)
 create mode 100644 package/zfs/0001-module-Makefile.in-don-t-use-DESTDIR-and-INSTALL_MOD.patch

diff --git a/package/zfs/0001-module-Makefile.in-don-t-use-DESTDIR-and-INSTALL_MOD.patch b/package/zfs/0001-module-Makefile.in-don-t-use-DESTDIR-and-INSTALL_MOD.patch
new file mode 100644
index 0000000000..e1d0f91533
--- /dev/null
+++ b/package/zfs/0001-module-Makefile.in-don-t-use-DESTDIR-and-INSTALL_MOD.patch
@@ -0,0 +1,44 @@
+From 12851a8dbc0aeb8e48f21f1e0cb7b3123029594e Mon Sep 17 00:00:00 2001
+From: Romain Naour <romain.naour at gmail.com>
+Date: Thu, 26 Aug 2021 23:12:31 +0200
+Subject: [PATCH] module/Makefile.in: don't use DESTDIR and INSTALL_MOD_PATH
+ together
+
+DESTDIR and INSTALL_MOD_PATH are usually set with absolute path
+by build system (Buildroot), so when used together it concatenates
+two absolute path.
+
+Keep INSTALL_MOD_PATH since it's set when building an out of tree
+kernel module.
+
+Signed-off-by: Romain Naour <romain.naour at gmail.com>
+---
+ module/Makefile.in | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/module/Makefile.in b/module/Makefile.in
+index 69caf4857..043f2bdea 100644
+--- a/module/Makefile.in
++++ b/module/Makefile.in
+@@ -76,15 +76,15 @@ clean: clean- at ac_system@
+ modules_install-Linux:
+ 	@# Install the kernel modules
+ 	$(MAKE) -C @LINUX_OBJ@ M=`pwd` modules_install \
+-		INSTALL_MOD_PATH=$(DESTDIR)$(INSTALL_MOD_PATH) \
++		INSTALL_MOD_PATH=$(INSTALL_MOD_PATH) \
+ 		INSTALL_MOD_DIR=$(INSTALL_MOD_DIR) \
+ 		KERNELRELEASE=@LINUX_VERSION@
+ 	@# Remove extraneous build products when packaging
+-	kmoddir=$(DESTDIR)$(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@; \
++	kmoddir=$(INSTALL_MOD_PATH)/lib/modules/@LINUX_VERSION@; \
+ 	if [ -n "$(DESTDIR)" ]; then \
+ 		find $$kmoddir -name 'modules.*' | xargs $(RM); \
+ 	fi
+-	sysmap=$(DESTDIR)$(INSTALL_MOD_PATH)/boot/System.map- at LINUX_VERSION@; \
++	sysmap=$(INSTALL_MOD_PATH)/boot/System.map- at LINUX_VERSION@; \
+ 	if [ -f $$sysmap ]; then \
+ 		depmod -ae -F $$sysmap @LINUX_VERSION@; \
+ 	fi
+-- 
+2.31.1
+
diff --git a/package/zfs/zfs.mk b/package/zfs/zfs.mk
index 3b1afb419a..537d4ece15 100644
--- a/package/zfs/zfs.mk
+++ b/package/zfs/zfs.mk
@@ -13,6 +13,11 @@ ZFS_CPE_ID_PRODUCT = openzfs
 
 ZFS_AUTORECONF = YES
 
+# cross compile environment for linux kernel module
+ZFS_MAKE_ENV = $(LINUX_MAKE_FLAGS)
+# `./configure` will execute a `make modules` test case
+ZFS_CONF_ENV = $(LINUX_MAKE_FLAGS)
+
 ZFS_DEPENDENCIES = libaio openssl udev util-linux zlib
 
 # sysvinit installs only a commented-out modules-load.d/ config file
-- 
2.31.1



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