diff options
Diffstat (limited to 'scripts/Makefile.modpost')
-rw-r--r-- | scripts/Makefile.modpost | 86 |
1 files changed, 44 insertions, 42 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 6b19c1a4eae5..26e6574ecd08 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -38,12 +38,39 @@ # symbols in the final module linking stage # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules. # This is solely useful to speed up test compiles -PHONY := _modpost -_modpost: __modpost + +PHONY := __modpost +__modpost: include include/config/auto.conf include scripts/Kbuild.include +kernelsymfile := $(objtree)/Module.symvers +modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers + +MODPOST = scripts/mod/modpost \ + $(if $(CONFIG_MODVERSIONS),-m) \ + $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \ + $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \ + $(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \ + $(if $(KBUILD_EXTMOD),$(addprefix -e ,$(KBUILD_EXTRA_SYMBOLS))) \ + $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \ + $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \ + $(if $(KBUILD_MODPOST_WARN),-w) + +ifdef MODPOST_VMLINUX + +__modpost: vmlinux.o + +quiet_cmd_modpost = MODPOST $@ + cmd_modpost = $(MODPOST) $@ + +PHONY += vmlinux.o +vmlinux.o: + $(call cmd,modpost) + +else + # When building external modules load the Kbuild file to retrieve EXTRA_SYMBOLS info ifneq ($(KBUILD_EXTMOD),) @@ -58,50 +85,25 @@ endif include scripts/Makefile.lib -kernelsymfile := $(objtree)/Module.symvers -modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers - -modorder := $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/)modules.order - -# Step 1), find all modules listed in modules.order -ifdef CONFIG_MODULES -modules := $(sort $(shell cat $(modorder))) -endif +# find all modules listed in modules.order +modules := $(sort $(shell cat $(MODORDER))) # Stop after building .o files if NOFINAL is set. Makes compile tests quicker -_modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules)) - -# Step 2), invoke modpost -# Includes step 3,4 -modpost = scripts/mod/modpost \ - $(if $(CONFIG_MODVERSIONS),-m) \ - $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,) \ - $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \ - $(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \ - $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(KBUILD_EXTRA_SYMBOLS))) \ - $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \ - $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \ - $(if $(KBUILD_MODPOST_WARN),-w) - -MODPOST_OPT=$(subst -i,-n,$(filter -i,$(MAKEFLAGS))) +__modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules)) + @: -# We can go over command line length here, so be careful. -quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules - cmd_modpost = sed 's/ko$$/o/' $(modorder) | $(modpost) $(MODPOST_OPT) -s -T - - -PHONY += __modpost -__modpost: $(modules:.ko=.o) FORCE - $(call cmd,modpost) $(wildcard vmlinux) +MODPOST += $(subst -i,-n,$(filter -i,$(MAKEFLAGS))) -s -T - $(wildcard vmlinux) -quiet_cmd_kernel-mod = MODPOST $@ - cmd_kernel-mod = $(modpost) $@ +# We can go over command line length here, so be careful. +quiet_cmd_modpost = MODPOST $(words $(modules)) modules + cmd_modpost = sed 's/ko$$/o/' $(MODORDER) | $(MODPOST) -vmlinux.o: FORCE - $(call cmd,kernel-mod) +PHONY += modules-modpost +modules-modpost: + $(call cmd,modpost) # Declare generated files as targets for modpost -$(modules:.ko=.mod.c): __modpost ; - +$(modules:.ko=.mod.c): modules-modpost # Step 5), compile all *.mod.c files @@ -145,10 +147,10 @@ FORCE: # optimization, we don't need to read them if the target does not # exist, we will rebuild anyway in that case. -cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd)) +existing-targets := $(wildcard $(sort $(targets))) + +-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) -ifneq ($(cmd_files),) - include $(cmd_files) endif .PHONY: $(PHONY) |