diff options
Diffstat (limited to 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 78 |
1 files changed, 43 insertions, 35 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 79be57fdd32a..d1425778664b 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -87,11 +87,6 @@ base-dtb-y := $(foreach m, $(multi-dtb-y), $(firstword $(call suffix-search, $m, always-y += $(dtb-y) -ifneq ($(CHECK_DTBS),) -always-y += $(patsubst %.dtb,%.dt.yaml, $(real-dtb-y)) -always-y += $(patsubst %.dtbo,%.dt.yaml, $(real-dtb-y)) -endif - # Add subdir path extra-y := $(addprefix $(obj)/,$(extra-y)) @@ -111,7 +106,7 @@ subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) modname-multi = $(sort $(foreach m,$(multi-obj-ym),\ $(if $(filter $*.o, $(call suffix-search, $m, .o, -objs -y -m)),$(m:.o=)))) -__modname = $(if $(modname-multi),$(modname-multi),$(basetarget)) +__modname = $(or $(modname-multi),$(basetarget)) modname = $(subst $(space),:,$(__modname)) modfile = $(addprefix $(obj)/,$(__modname)) @@ -230,36 +225,51 @@ dtc_cpp_flags = -Wp,-MMD,$(depfile).pre.tmp -nostdinc \ $(addprefix -I,$(DTC_INCLUDE)) \ -undef -D__DTS__ -ifeq ($(CONFIG_LTO_CLANG),y) -# With CONFIG_LTO_CLANG, .o files in modules might be LLVM bitcode, so we -# need to run LTO to compile them into native code (.lto.o) before further -# processing. -mod-prelink-ext := .lto -endif +ifdef CONFIG_OBJTOOL + +objtool := $(objtree)/tools/objtool/objtool + +objtool_args = \ + $(if $(CONFIG_HAVE_JUMP_LABEL_HACK), --hacks=jump_label) \ + $(if $(CONFIG_HAVE_NOINSTR_HACK), --hacks=noinstr) \ + $(if $(CONFIG_X86_KERNEL_IBT), --ibt) \ + $(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount) \ + $(if $(CONFIG_UNWINDER_ORC), --orc) \ + $(if $(CONFIG_RETPOLINE), --retpoline) \ + $(if $(CONFIG_SLS), --sls) \ + $(if $(CONFIG_STACK_VALIDATION), --stackval) \ + $(if $(CONFIG_HAVE_STATIC_CALL_INLINE), --static-call) \ + $(if $(CONFIG_HAVE_UACCESS_VALIDATION), --uaccess) \ + $(if $(delay-objtool), --link) \ + $(if $(part-of-module), --module) \ + $(if $(CONFIG_GCOV_KERNEL), --no-unreachable) + +delay-objtool := $(or $(CONFIG_LTO_CLANG),$(CONFIG_X86_KERNEL_IBT)) + +cmd_objtool = $(if $(objtool-enabled), ; $(objtool) $(objtool_args) $@) +cmd_gen_objtooldep = $(if $(objtool-enabled), { echo ; echo '$@: $$(wildcard $(objtool))' ; } >> $(dot-target).cmd) + +endif # CONFIG_OBJTOOL # Useful for describing the dependency of composite objects # Usage: # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) define multi_depend -$(foreach m, $(notdir $1), \ - $(eval $(obj)/$m: \ - $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) +$(foreach m, $1, \ + $(eval $m: \ + $(addprefix $(obj)/, $(call suffix-search, $(patsubst $(obj)/%,%,$m), $2, $3)))) endef -quiet_cmd_copy = COPY $@ - cmd_copy = cp $< $@ - -# Shipped files +# Copy a file # =========================================================================== # 'cp' preserves permissions. If you use it to copy a file in read-only srctree, # the copy would be read-only as well, leading to an error when executing the # rule next time. Use 'cat' instead in order to generate a writable file. - -quiet_cmd_shipped = SHIPPED $@ -cmd_shipped = cat $< > $@ +quiet_cmd_copy = COPY $@ + cmd_copy = cat $< > $@ $(obj)/%: $(src)/%_shipped - $(call cmd,shipped) + $(call cmd,copy) # Commands useful for building a boot image # =========================================================================== @@ -347,12 +357,6 @@ cmd_dtc = $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; -d $(depfile).dtc.tmp $(dtc-tmp) ; \ cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) -$(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE - $(call if_changed_dep,dtc) - -$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE - $(call if_changed_dep,dtc) - quiet_cmd_fdtoverlay = DTOVL $@ cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs) @@ -360,23 +364,27 @@ $(multi-dtb-y): FORCE $(call if_changed,fdtoverlay) $(call multi_depend, $(multi-dtb-y), .dtb, -dtbs) +ifneq ($(CHECK_DTBS)$(CHECK_DT_BINDING),) DT_CHECKER ?= dt-validate -DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),,-m) +DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m) DT_BINDING_DIR := Documentation/devicetree/bindings -# DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile -DT_TMP_SCHEMA ?= $(objtree)/$(DT_BINDING_DIR)/processed-schema.json +DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json quiet_cmd_dtb_check = CHECK $@ - cmd_dtb_check = $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ + cmd_dtb_check = $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true +endif define rule_dtc $(call cmd_and_fixdep,dtc) $(call cmd,dtb_check) endef -$(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE +$(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE $(call if_changed_rule,dtc) +$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE + $(call if_changed_dep,dtc) + dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) # Bzip2 @@ -438,7 +446,7 @@ MKIMAGE := $(srctree)/scripts/mkuboot.sh # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces # the number of overrides in arch makefiles UIMAGE_ARCH ?= $(SRCARCH) -UIMAGE_COMPRESSION ?= $(if $(2),$(2),none) +UIMAGE_COMPRESSION ?= $(or $(2),none) UIMAGE_OPTS-y ?= UIMAGE_TYPE ?= kernel UIMAGE_LOADADDR ?= arch_must_set_this |