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Message-ID: <20241110013649.34903-7-masahiroy@kernel.org>
Date: Sun, 10 Nov 2024 10:34:34 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
rust-for-linux@...r.kernel.org,
cocci@...ia.fr,
Masahiro Yamada <masahiroy@...nel.org>,
Nicolas Schier <nicolas@...sle.eu>
Subject: [PATCH v2 06/11] kbuild: remove extmod_prefix, MODORDER, MODULES_NSDEPS variables
With the previous changes, $(extmod_prefix), $(MODORDER), and
$(MODULES_NSDEPS) are constant. (empty, modules.order, and
modules.nsdeps, respectively).
Remove these variables and hard-code their values.
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
Reviewed-by: Nicolas Schier <nicolas@...sle.eu>
---
Changes in v2:
- More cleanups
Makefile | 22 +++++++++-------------
scripts/Makefile.modfinal | 8 ++++----
scripts/Makefile.modinst | 6 +++---
scripts/Makefile.modpost | 6 +++---
scripts/nsdeps | 2 +-
5 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/Makefile b/Makefile
index e5f7ac7647a7..c7eeb10455b6 100644
--- a/Makefile
+++ b/Makefile
@@ -1122,10 +1122,6 @@ export MODLIB
PHONY += prepare0
-export extmod_prefix =
-export MODORDER := $(extmod_prefix)modules.order
-export MODULES_NSDEPS := $(extmod_prefix)modules.nsdeps
-
ifeq ($(KBUILD_EXTMOD),)
build-dir := .
@@ -1876,7 +1872,7 @@ endif
ifdef CONFIG_MODULES
-$(MODORDER): $(build-dir)
+modules.order: $(build-dir)
@:
# KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
@@ -1887,7 +1883,7 @@ ifneq ($(KBUILD_MODPOST_NOFINAL),1)
endif
PHONY += modules_check
-modules_check: $(MODORDER)
+modules_check: modules.order
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh $<
else # CONFIG_MODULES
@@ -1928,15 +1924,15 @@ $(single-ko): single_modules
$(single-no-ko): $(build-dir)
@:
-# Remove MODORDER when done because it is not the real one.
+# Remove modules.order when done because it is not the real one.
PHONY += single_modules
single_modules: $(single-no-ko) modules_prepare
- $(Q){ $(foreach m, $(single-ko), echo $(extmod_prefix)$(m:%.ko=%.o);) } > $(MODORDER)
+ $(Q){ $(foreach m, $(single-ko), echo $(m:%.ko=%.o);) } > modules.order
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
ifneq ($(KBUILD_MODPOST_NOFINAL),1)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modfinal
endif
- $(Q)rm -f $(MODORDER)
+ $(Q)rm -f modules.order
single-goals := $(addprefix $(build-dir)/, $(single-no-ko))
@@ -2013,12 +2009,12 @@ nsdeps: modules
quiet_cmd_gen_compile_commands = GEN $@
cmd_gen_compile_commands = $(PYTHON3) $< -a $(AR) -o $@ $(filter-out $<, $(real-prereqs))
-$(extmod_prefix)compile_commands.json: $(srctree)/scripts/clang-tools/gen_compile_commands.py \
+compile_commands.json: $(srctree)/scripts/clang-tools/gen_compile_commands.py \
$(if $(KBUILD_EXTMOD),, vmlinux.a $(KBUILD_VMLINUX_LIBS)) \
- $(if $(CONFIG_MODULES), $(MODORDER)) FORCE
+ $(if $(CONFIG_MODULES), modules.order) FORCE
$(call if_changed,gen_compile_commands)
-targets += $(extmod_prefix)compile_commands.json
+targets += compile_commands.json
PHONY += clang-tidy clang-analyzer
@@ -2026,7 +2022,7 @@ ifdef CONFIG_CC_IS_CLANG
quiet_cmd_clang_tools = CHECK $<
cmd_clang_tools = $(PYTHON3) $(srctree)/scripts/clang-tools/run-clang-tools.py $@ $<
-clang-tidy clang-analyzer: $(extmod_prefix)compile_commands.json
+clang-tidy clang-analyzer: compile_commands.json
$(call cmd,clang_tools)
else
clang-tidy clang-analyzer:
diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
index 6d8aa3059ee2..bab53884f7e3 100644
--- a/scripts/Makefile.modfinal
+++ b/scripts/Makefile.modfinal
@@ -13,7 +13,7 @@ include $(srctree)/scripts/Kbuild.include
include $(srctree)/scripts/Makefile.lib
# find all modules listed in modules.order
-modules := $(call read-file, $(MODORDER))
+modules := $(call read-file, modules.order)
__modfinal: $(modules:%.o=%.ko)
@:
@@ -30,7 +30,7 @@ quiet_cmd_cc_o_c = CC [M] $@
%.mod.o: %.mod.c FORCE
$(call if_changed_dep,cc_o_c)
-$(extmod_prefix).module-common.o: $(srctree)/scripts/module-common.c FORCE
+.module-common.o: $(srctree)/scripts/module-common.c FORCE
$(call if_changed_dep,cc_o_c)
quiet_cmd_ld_ko_o = LD [M] $@
@@ -57,13 +57,13 @@ if_changed_except = $(if $(call newer_prereqs_except,$(2))$(cmd-check), \
printf '%s\n' 'savedcmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
# Re-generate module BTFs if either module's .ko or vmlinux changed
-%.ko: %.o %.mod.o $(extmod_prefix).module-common.o $(objtree)/scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),$(objtree)/vmlinux) FORCE
+%.ko: %.o %.mod.o .module-common.o $(objtree)/scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),$(objtree)/vmlinux) FORCE
+$(call if_changed_except,ld_ko_o,$(objtree)/vmlinux)
ifdef CONFIG_DEBUG_INFO_BTF_MODULES
+$(if $(newer-prereqs),$(call cmd,btf_ko))
endif
-targets += $(modules:%.o=%.ko) $(modules:%.o=%.mod.o) $(extmod_prefix).module-common.o
+targets += $(modules:%.o=%.ko) $(modules:%.o=%.mod.o) .module-common.o
# Add FORCE to the prerequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 6fa9af4a25b4..f97c9926ed31 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -40,7 +40,7 @@ $(addprefix $(MODLIB)/, modules.builtin modules.builtin.modinfo modules.builtin.
endif
-modules := $(call read-file, $(MODORDER))
+modules := $(call read-file, modules.order)
ifeq ($(KBUILD_EXTMOD),)
dst := $(MODLIB)/kernel
@@ -59,7 +59,7 @@ suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst
endif
-modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))
+modules := $(patsubst %.o, $(dst)/%.ko$(suffix-y), $(modules))
install-$(CONFIG_MODULES) += $(modules)
__modinst: $(install-y)
@@ -119,7 +119,7 @@ endif
# Create necessary directories
$(foreach dir, $(sort $(dir $(install-y))), $(shell mkdir -p $(dir)))
-$(dst)/%.ko: $(extmod_prefix)%.ko FORCE
+$(dst)/%.ko: %.ko FORCE
$(call cmd,install)
$(call cmd,strip)
$(call cmd,sign)
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 78d2ca4f25f5..ab0e94ea6249 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -46,7 +46,7 @@ modpost-args = \
$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \
$(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \
$(if $(KBUILD_MODPOST_WARN),-w) \
- $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \
+ $(if $(KBUILD_NSDEPS),-d modules.nsdeps) \
$(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \
$(if $(findstring 1, $(KBUILD_EXTRA_WARN)),-W) \
-o $@
@@ -61,8 +61,8 @@ endif
# Read out modules.order to pass in modpost.
# Otherwise, allmodconfig would fail with "Argument list too long".
ifdef KBUILD_MODULES
-modpost-args += -T $(MODORDER)
-modpost-deps += $(MODORDER)
+modpost-args += -T modules.order
+modpost-deps += modules.order
endif
ifeq ($(KBUILD_EXTMOD),)
diff --git a/scripts/nsdeps b/scripts/nsdeps
index 8ca12e2b5c03..bab4ec870e50 100644
--- a/scripts/nsdeps
+++ b/scripts/nsdeps
@@ -51,4 +51,4 @@ generate_deps() {
while read line
do
generate_deps $line
-done < $MODULES_NSDEPS
+done < modules.nsdeps
--
2.43.0
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