diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 59 |
1 files changed, 48 insertions, 11 deletions
@@ -295,7 +295,8 @@ no-dot-config-targets := $(clean-targets) \ cscope gtags TAGS tags help% %docs check% coccicheck \ $(version_h) headers headers_% archheaders archscripts \ %asm-generic kernelversion %src-pkg dt_binding_check \ - outputmakefile rustavailable rustfmt rustfmtcheck + outputmakefile rustavailable rustfmt rustfmtcheck \ + run-command no-sync-config-targets := $(no-dot-config-targets) %install modules_sign kernelrelease \ image_name single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.rsi %.s %/ @@ -447,6 +448,8 @@ ifneq ($(filter %/,$(LLVM)),) LLVM_PREFIX := $(LLVM) else ifneq ($(filter -%,$(LLVM)),) LLVM_SUFFIX := $(LLVM) +else ifneq ($(LLVM),1) +$(error Invalid value for LLVM, see Documentation/kbuild/llvm.rst) endif HOSTCC = $(LLVM_PREFIX)clang$(LLVM_SUFFIX) @@ -460,7 +463,7 @@ HOSTPKG_CONFIG = pkg-config # the KERNELDOC macro needs to be exported, as scripts/Makefile.build # has a logic to call it -KERNELDOC = $(srctree)/scripts/kernel-doc.py +KERNELDOC = $(srctree)/tools/docs/kernel-doc export KERNELDOC KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \ @@ -708,11 +711,12 @@ endif # The expansion should be delayed until arch/$(SRCARCH)/Makefile is included. # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile. -# CC_VERSION_TEXT and RUSTC_VERSION_TEXT are referenced from Kconfig (so they -# need export), and from include/config/auto.conf.cmd to detect the compiler -# upgrade. +# CC_VERSION_TEXT, RUSTC_VERSION_TEXT and PAHOLE_VERSION are referenced from +# Kconfig (so they need export), and from include/config/auto.conf.cmd to +# detect the version changes between builds. CC_VERSION_TEXT = $(subst $(pound),,$(shell LC_ALL=C $(CC) --version 2>/dev/null | head -n 1)) RUSTC_VERSION_TEXT = $(subst $(pound),,$(shell $(RUSTC) --version 2>/dev/null)) +PAHOLE_VERSION = $(shell $(srctree)/scripts/pahole-version.sh $(PAHOLE)) ifneq ($(findstring clang,$(CC_VERSION_TEXT)),) include $(srctree)/scripts/Makefile.clang @@ -733,7 +737,7 @@ ifdef config-build # KBUILD_DEFCONFIG may point out an alternative default configuration # used for 'make defconfig' include $(srctree)/arch/$(SRCARCH)/Makefile -export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERSION_TEXT RUSTC_VERSION_TEXT +export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERSION_TEXT RUSTC_VERSION_TEXT PAHOLE_VERSION config: outputmakefile scripts_basic FORCE $(Q)$(MAKE) $(build)=scripts/kconfig $@ @@ -952,6 +956,12 @@ KBUILD_CFLAGS += $(CC_AUTO_VAR_INIT_ZERO_ENABLER) endif endif +ifdef CONFIG_CC_IS_CLANG +ifdef CONFIG_CC_HAS_COUNTED_BY_PTR +KBUILD_CFLAGS += -fexperimental-late-parse-attributes +endif +endif + # Explicitly clear padding bits during variable initialization KBUILD_CFLAGS += $(call cc-option,-fzero-init-padding-bits=all) @@ -1102,7 +1112,7 @@ KBUILD_CFLAGS += -fno-builtin-wcslen # change __FILE__ to the relative path to the source directory ifdef building_out_of_srctree -KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srcroot)/=) +KBUILD_CPPFLAGS += -fmacro-prefix-map=$(srcroot)/= endif # include additional Makefiles when needed @@ -1118,6 +1128,7 @@ include-$(CONFIG_RANDSTRUCT) += scripts/Makefile.randstruct include-$(CONFIG_KSTACK_ERASE) += scripts/Makefile.kstack_erase include-$(CONFIG_AUTOFDO_CLANG) += scripts/Makefile.autofdo include-$(CONFIG_PROPELLER_CLANG) += scripts/Makefile.propeller +include-$(CONFIG_WARN_CONTEXT_ANALYSIS) += scripts/Makefile.context-analysis include-$(CONFIG_GCC_PLUGINS) += scripts/Makefile.gcc-plugins include $(addprefix $(srctree)/, $(include-y)) @@ -1187,6 +1198,14 @@ CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) # the checker needs the correct machine size CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) +# Validate the checker is available and functional +ifneq ($(KBUILD_CHECKSRC), 0) + ifneq ($(shell $(srctree)/scripts/checker-valid.sh $(CHECK) $(CHECKFLAGS)), 1) + $(warning C=$(KBUILD_CHECKSRC) specified, but $(CHECK) is not available or not up to date) + KBUILD_CHECKSRC = 0 + endif +endif + # Default kernel image to build when no specific target is given. # KBUILD_IMAGE may be overruled on the command line or # set in the environment @@ -1417,6 +1436,10 @@ ifdef CONFIG_HEADERS_INSTALL prepare: headers endif +PHONY += usr_gen_init_cpio +usr_gen_init_cpio: scripts_basic + $(Q)$(MAKE) $(build)=usr usr/gen_init_cpio + PHONY += scripts_unifdef scripts_unifdef: scripts_basic $(Q)$(MAKE) $(build)=scripts scripts/unifdef @@ -1506,6 +1529,12 @@ ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) dtstree := arch/$(SRCARCH)/boot/dts endif +dtbindingtree := Documentation/devicetree/bindings + +%.yaml: dtbs_prepare + $(Q)$(MAKE) $(build)=$(dtbindingtree) \ + $(dtbindingtree)/$(patsubst %.yaml,%.example.dtb,$@) dt_binding_check_one + ifneq ($(dtstree),) %.dtb: dtbs_prepare @@ -1523,7 +1552,7 @@ dtbs: dtbs_prepare # dtbs_install depend on it as dtbs_install may run as root. dtbs_prepare: include/config/kernel.release scripts_dtc -ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),) +ifneq ($(filter dtbs_check %.yaml, $(MAKECMDGOALS)),) export CHECK_DTBS=y endif @@ -1556,14 +1585,14 @@ endif PHONY += dt_binding_check dt_binding_schemas dt_binding_check: dt_binding_schemas scripts_dtc - $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings $@ + $(Q)$(MAKE) $(build)=$(dtbindingtree) $@ dt_binding_schemas: - $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings + $(Q)$(MAKE) $(build)=$(dtbindingtree) PHONY += dt_compatible_check dt_compatible_check: dt_binding_schemas - $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings $@ + $(Q)$(MAKE) $(build)=$(dtbindingtree) $@ # --------------------------------------------------------------------------- # Modules @@ -1670,6 +1699,8 @@ distclean: mrproper # Packaging of the kernel to various formats # --------------------------------------------------------------------------- +modules-cpio-pkg: usr_gen_init_cpio + %src-pkg: FORCE $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@ %pkg: include/config/kernel.release FORCE @@ -1922,12 +1953,18 @@ clean: private rm-files := Module.symvers modules.nsdeps compile_commands.json PHONY += prepare # now expand this into a simple variable to reduce the cost of shell evaluations prepare: CC_VERSION_TEXT := $(CC_VERSION_TEXT) +prepare: PAHOLE_VERSION := $(PAHOLE_VERSION) prepare: @if [ "$(CC_VERSION_TEXT)" != "$(CONFIG_CC_VERSION_TEXT)" ]; then \ echo >&2 "warning: the compiler differs from the one used to build the kernel"; \ echo >&2 " The kernel was built by: $(CONFIG_CC_VERSION_TEXT)"; \ echo >&2 " You are using: $(CC_VERSION_TEXT)"; \ fi + @if [ "$(PAHOLE_VERSION)" != "$(CONFIG_PAHOLE_VERSION)" ]; then \ + echo >&2 "warning: pahole version differs from the one used to build the kernel"; \ + echo >&2 " The kernel was built with: $(CONFIG_PAHOLE_VERSION)"; \ + echo >&2 " You are using: $(PAHOLE_VERSION)"; \ + fi PHONY += help help: |