From 65ce9c38326e2588fcd1a3a4817c14b4660f430b Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Wed, 31 Mar 2021 22:38:08 +0900
Subject: kbuild: move module strip/compression code into
 scripts/Makefile.modinst

Both mod_strip_cmd and mod_compress_cmd are only used in
scripts/Makefile.modinst, hence there is no good reason to define them
in the top Makefile. Move the relevant code to scripts/Makefile.modinst.

Also, show separate log messages for each of install, strip, sign, and
compress.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
 scripts/Makefile.modinst | 76 +++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 68 insertions(+), 8 deletions(-)

(limited to 'scripts/Makefile.modinst')

diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 8e9debb781d1..84696ef99df7 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -6,6 +6,7 @@
 PHONY := __modinst
 __modinst:
 
+include include/config/auto.conf
 include $(srctree)/scripts/Kbuild.include
 
 modules := $(sort $(shell cat $(MODORDER)))
@@ -17,21 +18,80 @@ INSTALL_MOD_DIR ?= extra
 dst := $(MODLIB)/$(INSTALL_MOD_DIR)
 endif
 
-modules := $(patsubst $(extmod_prefix)%, $(dst)/%, $(modules))
+suffix-y				:=
+suffix-$(CONFIG_MODULE_COMPRESS_GZIP)	:= .gz
+suffix-$(CONFIG_MODULE_COMPRESS_XZ)	:= .xz
+
+modules := $(patsubst $(extmod_prefix)%, $(dst)/%$(suffix-y), $(modules))
 
 __modinst: $(modules)
 	@:
 
-# Don't stop modules_install if we can't sign external modules.
+quiet_cmd_none =
+      cmd_none = :
+
+#
+# Installation
+#
 quiet_cmd_install = INSTALL $@
-      cmd_install = \
-    mkdir -p $(dir $@); cp $< $@; \
-    $(mod_strip_cmd) $@; \
-    $(mod_sign_cmd) $@ $(patsubst %,|| true,$(KBUILD_EXTMOD)) ; \
-    $(mod_compress_cmd) $@
+      cmd_install = mkdir -p $(dir $@); cp $< $@
+
+# Strip
+#
+# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they
+# are installed. If INSTALL_MOD_STRIP is '1', then the default option
+# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used
+# as the options to the strip command.
+ifdef INSTALL_MOD_STRIP
+
+ifeq ($(INSTALL_MOD_STRIP),1)
+strip-option := --strip-debug
+else
+strip-option := $(INSTALL_MOD_STRIP)
+endif
+
+quiet_cmd_strip = STRIP   $@
+      cmd_strip = $(STRIP) $(strip-option) $@
+
+else
 
-$(modules): $(dst)/%: $(extmod_prefix)% FORCE
+quiet_cmd_strip =
+      cmd_strip = :
+
+endif
+
+#
+# Signing
+# Don't stop modules_install even if we can't sign external modules.
+#
+ifeq ($(CONFIG_MODULE_SIG_ALL),y)
+quiet_cmd_sign = SIGN    $@
+$(eval $(call config_filename,MODULE_SIG_KEY))
+      cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY) certs/signing_key.x509 $@ \
+                 $(if $(KBUILD_EXTMOD),|| true)
+else
+quiet_cmd_sign :=
+      cmd_sign := :
+endif
+
+$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
 	$(call cmd,install)
+	$(call cmd,strip)
+	$(call cmd,sign)
+
+#
+# Compression
+#
+quiet_cmd_gzip = GZIP    $@
+      cmd_gzip = $(KGZIP) -n -f $<
+quiet_cmd_xz = XZ      $@
+      cmd_xz = $(XZ) --lzma2=dict=2MiB -f $<
+
+$(dst)/%.ko.gz: $(dst)/%.ko FORCE
+	$(call cmd,gzip)
+
+$(dst)/%.ko.xz: $(dst)/%.ko FORCE
+	$(call cmd,xz)
 
 PHONY += FORCE
 FORCE:
-- 
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