diff options
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 172 |
1 files changed, 45 insertions, 127 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index db687d5f9e..25347eee01 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -16,6 +16,8 @@ lib-y := lib-m := pbl-y := always := +always-y := +always-m := targets := subdir-y := subdir-m := @@ -43,17 +45,14 @@ include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-di include scripts/Makefile.lib # Do not include host rules unless needed -ifneq ($(hostprogs-y)$(hostprogs-m),) +ifneq ($(hostprogs),) include scripts/Makefile.host endif -ifneq ($(KBUILD_SRC),) -# Create output directory if not already present -_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) - -# Create directories for object files if directory does not exist -# Needed when obj-y := dir/file.o syntax is used -_dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d))) +# Do not include userprogs rules unless needed. +userprogs := $(sort $(userprogs)) +ifneq ($(userprogs),) +include scripts/Makefile.userprogs endif ifndef obj @@ -67,12 +66,12 @@ lib-target := $(obj)/lib.a endif ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(lib-target) $(pbl-y)),) -builtin-target := $(obj)/built-in.o +builtin-target := $(obj)/built-in.a endif ifeq ($(CONFIG_PBL_IMAGE), y) ifneq ($(strip $(pbl-y) $(builtin-target)),) -pbl-target := $(obj)/built-in-pbl.o +pbl-target := $(obj)/built-in.pbl.a endif endif @@ -80,37 +79,21 @@ endif __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(pbl-target) $(extra-y)) \ $(if $(KBUILD_MODULES),$(obj-m)) \ - $(subdir-ym) $(always) + $(subdir-ym) $(always-y) @: # Linus' kernel sanity checking tool ifeq ($(KBUILD_CHECKSRC),1) quiet_cmd_checksrc = CHECK $< - cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ; + cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< else ifeq ($(KBUILD_CHECKSRC),2) quiet_cmd_force_checksrc = CHECK $< - cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ; + cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< endif # Compile C sources (.c) # --------------------------------------------------------------------------- -# Default is built-in, unless we know otherwise -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] - # Default for not multi-part modules modname = $(basetarget) @@ -135,80 +118,23 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $< %.i: %.c FORCE $(call if_changed_dep,cc_i_c) -quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@ -cmd_cc_symtypes_c = \ - $(CPP) -D__GENKSYMS__ $(c_flags) $< \ - | $(GENKSYMS) -T $@ >/dev/null; \ - test -s $@ || rm -f $@ - -%.symtypes : %.c FORCE - $(call if_changed_dep,cc_symtypes_c) - # C (.c) files # The C file is compiled and updated dependency information is generated. # (See cmd_cc_o_c + relevant part of rule_cc_o_c) quiet_cmd_cc_o_c = CC $(quiet_modtag) $@ -quiet_cmd_pbl_cc_o_c = PBLCC $@ - -ifndef CONFIG_MODVERSIONS -cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< -cmd_pbl_cc_o_c = $(CC) -D__PBL__ $(c_flags) $(PBL_CPPFLAGS) -c -o $@ $< - -else -# When module versioning is enabled the following steps are executed: -# o compile a .tmp_<file>.o from <file>.c -# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does -# not export symbols, we just rename .tmp_<file>.o to <file>.o and -# are done. -# o otherwise, we calculate symbol versions using the good old -# genksyms on the preprocessed source and postprocess them in a way -# that they are usable as a linker script -# o generate <file>.o from .tmp_<file>.o using the linker to -# replace the unresolved symbols __crc_exported_symbol with -# the actual value of the checksum generated by genksyms - -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) $(if $(KBUILD_SYMTYPES), \ - -T $(@D)/$(@F:.o=.symtypes)) -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 + cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 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)' > \ - $(dot-target).tmp; \ - rm -f $(depfile); \ - mv -f $(dot-target).tmp $(dot-target).cmd -endef - -define rule_pbl_cc_o_c - $(call echo-cmd,checksrc) $(cmd_checksrc) \ - $(call echo-cmd,pbl_cc_o_c) $(cmd_pbl_cc_o_c); \ - $(cmd_modversions) \ - scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,pbl_cc_o_c)' > \ - $(dot-target).tmp; \ - rm -f $(depfile); \ - mv -f $(dot-target).tmp $(dot-target).cmd + $(call cmd,checksrc) + $(call cmd_and_fixdep,cc_o_c) endef # Built-in and composite module parts -pbl-%.o: %.c FORCE +%.pbl.o: %.c FORCE $(call cmd,force_checksrc) - $(call if_changed_rule,pbl_cc_o_c) + $(call if_changed_rule,cc_o_c) %.o: %.c FORCE $(call cmd,force_checksrc) @@ -232,11 +158,6 @@ quiet_cmd_cc_lst_c = MKLST $@ # Compile assembler sources (.S) # --------------------------------------------------------------------------- -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 $@ $< @@ -246,17 +167,15 @@ cmd_as_s_S = $(CPP) $(a_flags) -o $@ $< quiet_cmd_as_o_S = AS $(quiet_modtag) $@ cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< -quiet_cmd_pbl_as_o_S = PBLAS $@ -cmd_pbl_as_o_S = $(CC) -D__PBL__ $(a_flags) $(PBL_CPPFLAGS) -c -o $@ $< - -pbl-%.o: %.S FORCE - $(call if_changed_dep,pbl_as_o_S) +%.pbl.o: %.S FORCE + $(call if_changed_dep,as_o_S) %.o: %.S FORCE $(call if_changed_dep,as_o_S) -targets += $(real-objs-y) $(real-objs-m) $(lib-y) $(pbl-y) -targets += $(extra-y) $(MAKECMDGOALS) $(always) +targets += $(filter-out $(subdir-obj-y), $(real-obj-y)) $(real-obj-m) $(lib-y) +targets += $(pbl-y) +targets += $(extra-y) $(always-y) $(MAKECMDGOALS) # Linker scripts preprocessor (.lds.S -> .lds) # --------------------------------------------------------------------------- @@ -273,33 +192,20 @@ quiet_cmd_cpp_lds_S = LDS $@ $(sort $(subdir-obj-y)): $(subdir-ym) ; # -# Rule to compile a set of .o files into one .o file +# Rule to compile a set of .o files into one .a file (without symbol table) # -ifdef builtin-target -quiet_cmd_link_o_target = LD $@ -# If the list of objects to link is empty, just create an empty built-in.o -cmd_link_o_target = $(if $(strip $(obj-y)),\ - $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^),\ - rm -f $@; $(AR) rcs $@) +quiet_cmd_ar_builtin = AR $(quiet_modtag) $@ + cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs) -$(builtin-target): $(obj-y) FORCE - $(call if_changed,link_o_target) +$(builtin-target): $(real-obj-y) FORCE + $(call if_changed,ar_builtin) targets += $(builtin-target) -endif # builtin-target - -ifdef pbl-target -quiet_cmd_pbl_link_o_target = PBLLD $@ -# If the list of objects to link is empty, just create an empty built-in-pbl.o -cmd_pbl_link_o_target = $(if $(strip $(pbl-y)),\ - $(LD) $(ld_flags) -r -o $@ $(filter $(pbl-y), $^),\ - rm -f $@; $(AR) rcs $@) $(pbl-target): $(pbl-y) FORCE - $(call if_changed,pbl_link_o_target) + $(call if_changed,ar_builtin) targets += $(pbl-target) -endif # pbl-target # # Rule to compile a set of .o files into one .a file @@ -352,10 +258,14 @@ intermediate_targets = $(foreach sfx, $(2), \ $(filter %$(strip $(1)), $(targets)))) # %.asn1.o <- %.asn1.[ch] <- %.asn1 # %.dtb.o <- %.dtb.S <- %.dtb <- %.dts +# %.dtbo.o <- %.dtbo.S <- %.dtbo <- %.dtso +# %.dtb.pbl.o <- %.dtb.S <- %.dtb <- %.dts (Barebox only) # %.lex.o <- %.lex.c <- %.l # %.tab.o <- %.tab.[ch] <- %.y targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \ - $(call intermediate_targets, .dtb.o, .dtb.S .dtb) \ + $(call intermediate_targets, .dtb.o, .dtb.S .dtb.z .dtb) \ + $(call intermediate_targets, .dtbo.o, .dtbo.S .dtbo.z .dtbo) \ + $(call intermediate_targets, .dtb.pbl.o, .dtb.S .dtb.z .dtb) \ $(call intermediate_targets, .lex.o, .lex.c) \ $(call intermediate_targets, .tab.o, .tab.c .tab.h) @@ -378,11 +288,19 @@ FORCE: # optimization, we don't need to read them if the target does not # exist, we will rebuild anyway in that case. -targets := $(wildcard $(sort $(targets))) -cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) +existing-targets := $(wildcard $(sort $(targets))) -ifneq ($(cmd_files),) - include $(cmd_files) +-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) + +ifdef building_out_of_srctree +# Create directories for object files if they do not exist +obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets)))) +# If targets exist, their directories apparently exist. Skip mkdir. +existing-dirs := $(sort $(patsubst %/,%, $(dir $(existing-targets)))) +obj-dirs := $(strip $(filter-out $(existing-dirs), $(obj-dirs))) +ifneq ($(obj-dirs),) +$(shell mkdir -p $(obj-dirs)) +endif endif .PHONY: $(PHONY) |