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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-12-11 16:04:08 +0300 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-12-14 09:42:40 +0300 |
| commit | 3d57e1b7b1d42d4040f0d993b66ff06beda02c54 (patch) | |
| tree | 2c6c6ad858e53923dbe574d8701d552a274cea3a /scripts | |
| parent | f65a486821cfd363833079b2a7b0769250ee21c9 (diff) | |
| download | linux-3d57e1b7b1d42d4040f0d993b66ff06beda02c54.tar.xz | |
kbuild: refactor the prerequisites of the modpost rule
The prerequisites of modpost are cluttered. The variables *-if-present
and *-if-needed are unreadable.
It is cleaner to append them into modpost-deps.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.modpost | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index f814a6acd200..5eb5e8280379 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -38,6 +38,8 @@ __modpost: include include/config/auto.conf include $(srctree)/scripts/Kbuild.include +MODPOST = scripts/mod/modpost + modpost-args = \ $(if $(CONFIG_MODVERSIONS),-m) \ $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \ @@ -46,6 +48,8 @@ modpost-args = \ $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \ -o $@ +modpost-deps := $(MODPOST) + # 'make -i -k' ignores compile errors, and builds as many modules as possible. ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),) modpost-args += -n @@ -78,12 +82,13 @@ targets += .vmlinux.objs .vmlinux.objs: vmlinux.a $(KBUILD_VMLINUX_LIBS) FORCE $(call if_changed,vmlinux_objs) -vmlinux.o-if-present := $(wildcard vmlinux.o) -output-symdump := vmlinux.symvers - -ifdef KBUILD_MODULES -output-symdump := $(if $(vmlinux.o-if-present), Module.symvers, modules-only.symvers) -missing-input := $(filter-out $(vmlinux.o-if-present),vmlinux.o) +ifeq ($(wildcard vmlinux.o),) +missing-input := vmlinux.o +output-symdump := modules-only.symvers +else +modpost-args += vmlinux.o +modpost-deps += vmlinux.o +output-symdump := $(if $(KBUILD_MODULES), Module.symvers, vmlinux.symvers) endif else @@ -95,11 +100,16 @@ src := $(obj) # Include the module's Makefile to find KBUILD_EXTRA_SYMBOLS include $(kbuild-file) -module.symvers-if-present := $(wildcard Module.symvers) output-symdump := $(KBUILD_EXTMOD)/Module.symvers -missing-input := $(filter-out $(module.symvers-if-present), Module.symvers) -modpost-args += -e $(addprefix -i ,$(module.symvers-if-present) $(KBUILD_EXTRA_SYMBOLS)) +ifeq ($(wildcard Module.symvers),) +missing-input := Module.symvers +else +modpost-args += -i Module.symvers +modpost-deps += Module.symvers +endif + +modpost-args += -e $(addprefix -i , $(KBUILD_EXTRA_SYMBOLS)) endif # ($(KBUILD_EXTMOD),) @@ -108,12 +118,10 @@ modpost-args += -w endif ifdef KBUILD_MODULES -modorder-if-needed := $(MODORDER) modpost-args += -T $(MODORDER) +modpost-deps += $(MODORDER) endif -MODPOST = scripts/mod/modpost - # Read out modules.order to pass in modpost. # Otherwise, allmodconfig would fail with "Argument list too long". quiet_cmd_modpost = MODPOST $@ @@ -122,10 +130,10 @@ quiet_cmd_modpost = MODPOST $@ echo >&2 "WARNING: $(missing-input) is missing."; \ echo >&2 " Modules may not have dependencies or modversions."; \ echo >&2 " You may get many unresolved symbol warnings.";) \ - $(MODPOST) $(modpost-args) $(vmlinux.o-if-present) + $(MODPOST) $(modpost-args) targets += $(output-symdump) -$(output-symdump): $(modorder-if-needed) $(vmlinux.o-if-present) $(module.symvers-if-present) $(MODPOST) FORCE +$(output-symdump): $(modpost-deps) FORCE $(call if_changed,modpost) __modpost: $(output-symdump) |