diff options
Diffstat (limited to 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 148 |
1 files changed, 100 insertions, 48 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index ab17f7b2e33c..3aa384cec76b 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -8,6 +8,7 @@ ldflags-y += $(EXTRA_LDFLAGS) # flags that take effect in current and sub directories KBUILD_AFLAGS += $(subdir-asflags-y) KBUILD_CFLAGS += $(subdir-ccflags-y) +KBUILD_RUSTFLAGS += $(subdir-rustflags-y) # Figure out what we need to build from the various variables # =========================================================================== @@ -87,13 +88,9 @@ 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, $(real-dtb-y)) -endif - # Add subdir path +ifneq ($(obj),.) extra-y := $(addprefix $(obj)/,$(extra-y)) always-y := $(addprefix $(obj)/,$(always-y)) targets := $(addprefix $(obj)/,$(targets)) @@ -105,13 +102,14 @@ multi-obj-m := $(addprefix $(obj)/, $(multi-obj-m)) multi-dtb-y := $(addprefix $(obj)/, $(multi-dtb-y)) real-dtb-y := $(addprefix $(obj)/, $(real-dtb-y)) subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) +endif # Finds the multi-part object the current object will be linked into. # If the object belongs to two or more multi-part objects, list them all. 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)) @@ -133,6 +131,10 @@ _c_flags = $(filter-out $(CFLAGS_REMOVE_$(target-stem).o), \ $(filter-out $(ccflags-remove-y), \ $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(ccflags-y)) \ $(CFLAGS_$(target-stem).o)) +_rust_flags = $(filter-out $(RUSTFLAGS_REMOVE_$(target-stem).o), \ + $(filter-out $(rustflags-remove-y), \ + $(KBUILD_RUSTFLAGS) $(rustflags-y)) \ + $(RUSTFLAGS_$(target-stem).o)) _a_flags = $(filter-out $(AFLAGS_REMOVE_$(target-stem).o), \ $(filter-out $(asflags-remove-y), \ $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(asflags-y)) \ @@ -162,6 +164,15 @@ _c_flags += $(if $(patsubst n%,, \ endif endif +ifeq ($(CONFIG_KMSAN),y) +_c_flags += $(if $(patsubst n%,, \ + $(KMSAN_SANITIZE_$(basetarget).o)$(KMSAN_SANITIZE)y), \ + $(CFLAGS_KMSAN)) +_c_flags += $(if $(patsubst n%,, \ + $(KMSAN_ENABLE_CHECKS_$(basetarget).o)$(KMSAN_ENABLE_CHECKS)y), \ + , -mllvm -msan-disable-checks=1) +endif + ifeq ($(CONFIG_UBSAN),y) _c_flags += $(if $(patsubst n%,, \ $(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \ @@ -207,6 +218,11 @@ modkern_cflags = \ $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \ $(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL) $(modfile_flags)) +modkern_rustflags = \ + $(if $(part-of-module), \ + $(KBUILD_RUSTFLAGS_MODULE) $(RUSTFLAGS_MODULE), \ + $(KBUILD_RUSTFLAGS_KERNEL) $(RUSTFLAGS_KERNEL)) + modkern_aflags = $(if $(part-of-module), \ $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE), \ $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)) @@ -216,6 +232,8 @@ c_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ $(_c_flags) $(modkern_cflags) \ $(basename_flags) $(modname_flags) +rust_flags = $(_rust_flags) $(modkern_rustflags) @$(objtree)/include/generated/rustc_cfg + a_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ $(_a_flags) $(modkern_aflags) @@ -230,36 +248,53 @@ dtc_cpp_flags = -Wp,-MMD,$(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 := $(objtree)/tools/objtool/objtool + +objtool-args-$(CONFIG_HAVE_JUMP_LABEL_HACK) += --hacks=jump_label +objtool-args-$(CONFIG_HAVE_NOINSTR_HACK) += --hacks=noinstr +objtool-args-$(CONFIG_X86_KERNEL_IBT) += --ibt +objtool-args-$(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL) += --mcount +objtool-args-$(CONFIG_UNWINDER_ORC) += --orc +objtool-args-$(CONFIG_RETPOLINE) += --retpoline +objtool-args-$(CONFIG_RETHUNK) += --rethunk +objtool-args-$(CONFIG_SLS) += --sls +objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval +objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call +objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess +objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable + +objtool-args = $(objtool-args-y) \ + $(if $(delay-objtool), --link) \ + $(if $(part-of-module), --module) + +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 +382,6 @@ 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) @@ -360,22 +389,24 @@ $(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) $@ +quiet_cmd_dtb = DTC_CHK $@ + cmd_dtb = $(cmd_dtc) ; $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true +else +quiet_cmd_dtb = $(quiet_cmd_dtc) + cmd_dtb = $(cmd_dtc) +endif -define rule_dtc - $(call cmd_and_fixdep,dtc) - $(call cmd,dtb_check) -endef +$(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE + $(call if_changed_dep,dtb) -$(obj)/%.dt.yaml: $(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) @@ -399,20 +430,35 @@ printf "%08x\n" $$dec_size | \ } \ ) +quiet_cmd_file_size = GEN $@ + cmd_file_size = $(size_append) > $@ + quiet_cmd_bzip2 = BZIP2 $@ - cmd_bzip2 = { cat $(real-prereqs) | $(KBZIP2) -9; $(size_append); } > $@ + cmd_bzip2 = cat $(real-prereqs) | $(KBZIP2) -9 > $@ + +quiet_cmd_bzip2_with_size = BZIP2 $@ + cmd_bzip2_with_size = { cat $(real-prereqs) | $(KBZIP2) -9; $(size_append); } > $@ # Lzma # --------------------------------------------------------------------------- quiet_cmd_lzma = LZMA $@ - cmd_lzma = { cat $(real-prereqs) | $(LZMA) -9; $(size_append); } > $@ + cmd_lzma = cat $(real-prereqs) | $(LZMA) -9 > $@ + +quiet_cmd_lzma_with_size = LZMA $@ + cmd_lzma_with_size = { cat $(real-prereqs) | $(LZMA) -9; $(size_append); } > $@ quiet_cmd_lzo = LZO $@ - cmd_lzo = { cat $(real-prereqs) | $(KLZOP) -9; $(size_append); } > $@ + cmd_lzo = cat $(real-prereqs) | $(KLZOP) -9 > $@ + +quiet_cmd_lzo_with_size = LZO $@ + cmd_lzo_with_size = { cat $(real-prereqs) | $(KLZOP) -9; $(size_append); } > $@ quiet_cmd_lz4 = LZ4 $@ - cmd_lz4 = { cat $(real-prereqs) | $(LZ4) -l -c1 stdin stdout; \ + cmd_lz4 = cat $(real-prereqs) | $(LZ4) -l -c1 stdin stdout > $@ + +quiet_cmd_lz4_with_size = LZ4 $@ + cmd_lz4_with_size = { cat $(real-prereqs) | $(LZ4) -l -c1 stdin stdout; \ $(size_append); } > $@ # U-Boot mkimage @@ -423,7 +469,7 @@ 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 @@ -455,7 +501,10 @@ quiet_cmd_uimage = UIMAGE $@ # big dictionary would increase the memory usage too much in the multi-call # decompression mode. A BCJ filter isn't used either. quiet_cmd_xzkern = XZKERN $@ - cmd_xzkern = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh; \ + cmd_xzkern = cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh > $@ + +quiet_cmd_xzkern_with_size = XZKERN $@ + cmd_xzkern_with_size = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh; \ $(size_append); } > $@ quiet_cmd_xzmisc = XZMISC $@ @@ -478,10 +527,13 @@ quiet_cmd_xzmisc = XZMISC $@ # be used because it would require zstd to allocate a 128 MB buffer. quiet_cmd_zstd = ZSTD $@ - cmd_zstd = { cat $(real-prereqs) | $(ZSTD) -19; $(size_append); } > $@ + cmd_zstd = cat $(real-prereqs) | $(ZSTD) -19 > $@ quiet_cmd_zstd22 = ZSTD22 $@ - cmd_zstd22 = { cat $(real-prereqs) | $(ZSTD) -22 --ultra; $(size_append); } > $@ + cmd_zstd22 = cat $(real-prereqs) | $(ZSTD) -22 --ultra > $@ + +quiet_cmd_zstd22_with_size = ZSTD22 $@ + cmd_zstd22_with_size = { cat $(real-prereqs) | $(ZSTD) -22 --ultra; $(size_append); } > $@ # ASM offsets # --------------------------------------------------------------------------- |