[PATCH v5 13/14] kbuild: move handling of module stripping to Makefile.lib
From: Thomas Weißschuh <linux@weissschuh.net>
Date: 2026-05-05 09:10:47
Also in:
bpf, linux-arch, linux-doc, linux-integrity, linux-kbuild, linux-modules, linux-security-module, lkml
Subsystem:
kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
To allow CONFIG_MODULE_HASHES in combination with INSTALL_MOD_STRIP, this logc will also be used by Makefile.modfinal. Move it to a shared location to enable reuse. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> --- scripts/Makefile.lib | 32 ++++++++++++++++++++++++++++++++ scripts/Makefile.modinst | 37 +++++-------------------------------- 2 files changed, 37 insertions(+), 32 deletions(-)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 0718e39cedda..bb713a1a11be 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib@@ -484,6 +484,38 @@ define sed-offsets s:->::; p;}' endef +# +# Module Installation +# +quiet_cmd_install_mod = INSTALL $@ + cmd_install_mod = cp $< $@ + +# Module Strip +# --------------------------------------------------------------------------- +# +# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they +# are installed. If INSTALL_MOD_STRIP is '1', then the default option +# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used +# as the options to the strip command. +ifeq ($(INSTALL_MOD_STRIP),1) +mod-strip-option := --strip-debug +else +mod-strip-option := $(INSTALL_MOD_STRIP) +endif + +# Strip +ifdef INSTALL_MOD_STRIP + +quiet_cmd_strip_mod = STRIP $@ + cmd_strip_mod = $(STRIP) $(mod-strip-option) $@ + +else + +quiet_cmd_strip_mod = + cmd_strip_mod = : + +endif + # Use filechk to avoid rebuilds when a header changes, but the resulting file # does not define filechk_offsets
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 68708a039a62..b95f613e23c8 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst@@ -8,6 +8,7 @@ __modinst: include $(objtree)/include/config/auto.conf include $(srctree)/scripts/Kbuild.include +include $(srctree)/scripts/Makefile.lib install-y :=
@@ -36,7 +37,7 @@ install-y += $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo) install-$(CONFIG_BUILTIN_MODULE_RANGES) += $(MODLIB)/modules.builtin.ranges $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo modules.builtin.ranges): $(MODLIB)/%: % FORCE - $(call cmd,install) + $(call cmd,install_mod) endif
@@ -65,40 +66,12 @@ install-$(CONFIG_MODULES) += $(modules) __modinst: $(install-y) @: -# -# Installation -# -quiet_cmd_install = INSTALL $@ - cmd_install = cp $< $@ - -# Strip -# -# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped after they -# are installed. If INSTALL_MOD_STRIP is '1', then the default option -# --strip-debug will be used. Otherwise, INSTALL_MOD_STRIP value will be used -# as the options to the strip command. -ifdef INSTALL_MOD_STRIP - ifdef CONFIG_MODULE_HASHES ifeq ($(KBUILD_EXTMOD),) +ifdef INSTALL_MOD_STRIP $(error CONFIG_MODULE_HASHES and INSTALL_MOD_STRIP are mutually exclusive) endif endif - -ifeq ($(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 - -quiet_cmd_strip = - cmd_strip = : - endif #
@@ -131,8 +104,8 @@ endif $(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir))) $(dst)/%.ko: %.ko FORCE - $(call cmd,install) - $(call cmd,strip) + $(call cmd,install_mod) + $(call cmd,strip_mod) $(call cmd,sign) ifdef CONFIG_MODULES
--
2.54.0