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- src := $(obj)
- PHONY := __build
- __build:
- -include .config
- include scripts/Kbuild.include
- kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
- include $(if $(wildcard $(src)/Kbuild), $(src)/Kbuild, \
- $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, \
- $(kbuild-dir)/Makefile \
- ) \
- )
- include scripts/Makefile.lib
- ifdef host-progs
- ifneq ($(hostprogs-y),$(host-progs))
- $(warning kbuild: $(obj)/Makefile - Usage of host-progs is deprecated. Please replace with hostprogs-y!)
- hostprogs-y += $(host-progs)
- endif
- endif
- ifneq ($(hostprogs-y)$(hostprogs-m),)
- include scripts/Makefile.host
- endif
- ifneq ($(KBUILD_SRC),)
- _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
- _dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
- endif
- ifdef EXTRA_TARGETS
- $(warning kbuild: $(obj)/Makefile - Usage of EXTRA_TARGETS is obsolete in 2.6. Please fix!)
- endif
- ifdef build-targets
- $(warning kbuild: $(obj)/Makefile - Usage of build-targets is obsolete in 2.6. Please fix!)
- endif
- ifdef export-objs
- $(warning kbuild: $(obj)/Makefile - Usage of export-objs is obsolete in 2.6. Please fix!)
- endif
- ifdef O_TARGET
- $(warning kbuild: $(obj)/Makefile - Usage of O_TARGET := $(O_TARGET) is obsolete in 2.6. Please fix!)
- endif
- ifdef L_TARGET
- $(error kbuild: $(obj)/Makefile - Use of L_TARGET is replaced by lib-y in 2.6. Please fix!)
- endif
- ifdef list-multi
- $(warning kbuild: $(obj)/Makefile - list-multi := $(list-multi) is obsolete in 2.6. Please fix!)
- endif
- ifndef obj
- $(warning kbuild: Makefile.build is included improperly)
- endif
- ifneq ($(strip $(lib-y) $(lib-m) $(lib-n) $(lib-)),)
- lib-target := $(obj)/lib.a
- endif
- ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-) $(lib-target)),)
- builtin-target := $(obj)/built-in.o
- endif
- __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
- $(if $(KBUILD_MODULES),$(obj-m)) \
- $(subdir-ym) $(always)
- @:
- ifneq ($(KBUILD_CHECKSRC),0)
- ifeq ($(KBUILD_CHECKSRC),2)
- quiet_cmd_force_checksrc = CHECK $<
- cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
- else
- quiet_cmd_checksrc = CHECK $<
- cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
- endif
- endif
- modkern_cflags := $(CFLAGS_KERNEL)
- quiet_modtag := $(empty) $(empty)
- $(real-objs-m) : modkern_cflags := $(CFLAGS_MODULE)
- $(real-objs-m:.o=.i) : modkern_cflags := $(CFLAGS_MODULE)
- $(real-objs-m:.o=.s) : modkern_cflags := $(CFLAGS_MODULE)
- $(real-objs-m:.o=.lst): modkern_cflags := $(CFLAGS_MODULE)
- $(real-objs-m) : quiet_modtag := [M]
- $(real-objs-m:.o=.i) : quiet_modtag := [M]
- $(real-objs-m:.o=.s) : quiet_modtag := [M]
- $(real-objs-m:.o=.lst): quiet_modtag := [M]
- $(obj-m) : quiet_modtag := [M]
- modname = $(*F)
- $(multi-objs-m) : modname = $(modname-multi)
- $(multi-objs-m:.o=.i) : modname = $(modname-multi)
- $(multi-objs-m:.o=.s) : modname = $(modname-multi)
- $(multi-objs-m:.o=.lst) : modname = $(modname-multi)
- $(multi-objs-y) : modname = $(modname-multi)
- $(multi-objs-y:.o=.i) : modname = $(modname-multi)
- $(multi-objs-y:.o=.s) : modname = $(modname-multi)
- $(multi-objs-y:.o=.lst) : modname = $(modname-multi)
- quiet_cmd_cc_s_c = CC $(quiet_modtag) $@
- cmd_cc_s_c = $(CC) $(c_flags) -fverbose-asm -S -o $@ $<
- %.s: %.c FORCE
- $(call if_changed_dep,cc_s_c)
- quiet_cmd_cc_i_c = CPP $(quiet_modtag) $@
- cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $<
- %.i: %.c FORCE
- $(call if_changed_dep,cc_i_c)
- quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
- ifndef CONFIG_MODVERSIONS
- cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
- else
- cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
- cmd_modversions = \
- if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
- $(CPP) -D__GENKSYMS__ $(c_flags) $< \
- | $(GENKSYMS) -a $(ARCH) \
- > $(@D)/.tmp_$(@F:.o=.ver); \
- \
- $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
- -T $(@D)/.tmp_$(@F:.o=.ver); \
- rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
- else \
- mv -f $(@D)/.tmp_$(@F) $@; \
- fi;
- endif
- define rule_cc_o_c
- $(call echo-cmd,checksrc) $(cmd_checksrc) \
- $(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \
- $(cmd_modversions) \
- scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > $(@D)/.$(@F).tmp; \
- rm -f $(depfile); \
- mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd
- endef
- %.o: %.c FORCE
- $(call cmd,force_checksrc)
- $(call if_changed_rule,cc_o_c)
- $(single-used-m): %.o: %.c FORCE
- $(call cmd,force_checksrc)
- $(call if_changed_rule,cc_o_c)
- @{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)
- quiet_cmd_cc_lst_c = MKLST $@
- cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
- $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
- System.map $(OBJDUMP) > $@
- %.lst: %.c FORCE
- $(call if_changed_dep,cc_lst_c)
- modkern_aflags := $(AFLAGS_KERNEL)
- $(real-objs-m) : modkern_aflags := $(AFLAGS_MODULE)
- $(real-objs-m:.o=.s): modkern_aflags := $(AFLAGS_MODULE)
- quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
- cmd_as_s_S = $(CPP) $(a_flags) -o $@ $<
- %.s: %.S FORCE
- $(call if_changed_dep,as_s_S)
- quiet_cmd_as_o_S = AS $(quiet_modtag) $@
- cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
- %.o: %.S FORCE
- $(call if_changed_dep,as_o_S)
- targets += $(real-objs-y) $(real-objs-m) $(lib-y)
- targets += $(extra-y) $(MAKECMDGOALS) $(always)
- quiet_cmd_cpp_lds_S = LDS $@
- cmd_cpp_lds_S = $(CPP) $(cpp_flags) -D__ASSEMBLY__ -o $@ $<
- %.lds: %.lds.S FORCE
- $(call if_changed_dep,cpp_lds_S)
- $(sort $(subdir-obj-y)): $(subdir-ym) ;
- ifdef builtin-target
- quiet_cmd_link_o_target = LD $@
- cmd_link_o_target = $(if $(strip $(obj-y)),\
- $(LD) -nostdlib $(ld_flags) -r -o $@ $(filter $(obj-y), $^),\
- rm -f $@; $(AR) rcs $@)
- $(builtin-target): $(obj-y) FORCE
- $(call if_changed,link_o_target)
- targets += $(builtin-target)
- endif
- ifdef lib-target
- quiet_cmd_link_l_target = AR $@
- cmd_link_l_target = rm -f $@; $(AR) $(EXTRA_ARFLAGS) rcs $@ $(lib-y)
- $(lib-target): $(lib-y) FORCE
- $(call if_changed,link_l_target)
- targets += $(lib-target)
- endif
- link_multi_deps = \
- $(filter $(addprefix $(obj)/, \
- $($(subst $(obj)/,,$(@:.o=-objs))) \
- $($(subst $(obj)/,,$(@:.o=-y)))), $^)
- quiet_cmd_link_multi-y = LD $@
- cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps)
- quiet_cmd_link_multi-m = LD [M] $@
- cmd_link_multi-m = $(LD) $(ld_flags) $(LDFLAGS_MODULE) -o $@ $(link_multi_deps)
- $(multi-used-y) : %.o: $(multi-objs-y) FORCE
- $(call if_changed,link_multi-y)
- $(multi-used-m) : %.o: $(multi-objs-m) FORCE
- $(call if_changed,link_multi-m)
- @{ echo $(@:.o=.ko); echo $(link_multi_deps); } > $(MODVERDIR)/$(@F:.o=.mod)
- targets += $(multi-used-y) $(multi-used-m)
- PHONY += $(subdir-ym)
- $(subdir-ym):
- $(Q)$(MAKE) $(build)=$@
- PHONY += FORCE
- FORCE:
- targets := $(wildcard $(sort $(targets)))
- cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
- ifneq ($(cmd_files),)
- include $(cmd_files)
- endif
- .PHONY: $(PHONY)
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