Add target in Makefile to compress the module with XZ after it's
installed. kmod can handle modules compressed with xz and it's replacing
module-init-tools.
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxxxxxxx>
---
Makefile | 6 +++++-
scripts/Makefile.modinst | 7 +++++++
2 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/Makefile b/Makefile
index baddcfe..f06f886 100644
--- a/Makefile
+++ b/Makefile
@@ -1104,9 +1104,10 @@ PHONY += modules_prepare
modules_prepare: prepare scripts
# Target to install modules
-PHONY += modules_install modules_install_gz
+PHONY += modules_install modules_install_gz modules_install_xz
modules_install: _modinst_bare _modinst_post
modules_install_gz: _modinst_gz _modinst_post
+modules_install_xz: _modinst_xz _modinst_post
PHONY += _modinst_
_modinst_:
@@ -1127,6 +1128,9 @@ _modinst_bare: _modinst_
_modinst_gz: _modinst_
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst compression=gz
+_modinst_xz: _modinst_
+ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst compression=xz
+
# This depmod is only for convenience to give the initial
# boot a modules.dep even before / is mounted read-write. However the
# boot script depmod is the master version.
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 442f953..297c546 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -24,6 +24,9 @@ quiet_cmd_modules_install = INSTALL $@
quiet_cmd_modules_compress_gz = GZ $@.gz
cmd_modules_compress_gz = gzip $(2)/$(notdir $@)
+quiet_cmd_modules_compress_xz = XZ $@.xz
+ cmd_modules_compress_xz = xz $(2)/$(notdir $@)
+
# Modules built outside the kernel source tree go into extra by default
INSTALL_MOD_DIR ?= extra
ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(patsubst %/,%,$(KBUILD_EXTMOD)),,$(@D))
@@ -34,6 +37,10 @@ $(modules):
$(call cmd,modules_install,$(MODLIB)/$(modinst_dir))
ifeq ($(compression),gz)
$(call cmd,modules_compress_gz,$(MODLIB)/$(modinst_dir))
+else
+ifeq ($(compression),xz)
+ $(call cmd,modules_compress_xz,$(MODLIB)/$(modinst_dir))
+endif
endif
--
1.7.8.1
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