# SPDX-License-Identifier: GPL-2.0
VERSION = 5
-PATCHLEVEL = 2
+PATCHLEVEL = 3
SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc2
NAME = Bobtail Squid
# *DOCUMENTATION*
ifdef SUBDIRS
$(warning ================= WARNING ================)
$(warning 'SUBDIRS' will be removed after Linux 5.3)
+ $(warning )
+ $(warning If you are building an individual subdirectory)
+ $(warning in the kernel tree, you can do like this:)
+ $(warning $$ make path/to/dir/you/want/to/build/)
+ $(warning (Do not forget the trailing slash))
+ $(warning )
+ $(warning If you are building an external module,)
$(warning Please use 'M=' or 'KBUILD_EXTMOD' instead)
$(warning ==========================================)
KBUILD_EXTMOD ?= $(SUBDIRS)
KBUILD_EXTMOD := $(M)
endif
+export KBUILD_CHECKSRC KBUILD_EXTMOD
+
ifeq ($(abs_srctree),$(abs_objtree))
# building in the source tree
srctree := .
+ building_out_of_srctree :=
else
ifeq ($(abs_srctree)/,$(dir $(abs_objtree)))
# building in a subdirectory of the source tree
else
srctree := $(abs_srctree)
endif
-
- # TODO:
- # KBUILD_SRC is only used to distinguish in-tree/out-of-tree build.
- # Replace it with $(srctree) or something.
- KBUILD_SRC := $(abs_srctree)
+ building_out_of_srctree := 1
endif
-export KBUILD_CHECKSRC KBUILD_EXTMOD KBUILD_SRC
+ifneq ($(KBUILD_ABS_SRCTREE),)
+srctree := $(abs_srctree)
+endif
objtree := .
-src := $(srctree)
-obj := $(objtree)
-
VPATH := $(srctree)
-export srctree objtree VPATH
+export building_out_of_srctree srctree objtree VPATH
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
clean-targets := %clean mrproper cleandocs
no-dot-config-targets := $(clean-targets) \
cscope gtags TAGS tags help% %docs check% coccicheck \
- $(version_h) headers_% archheaders archscripts \
+ $(version_h) headers headers_% archheaders archscripts \
%asm-generic kernelversion %src-pkg
no-sync-config-targets := $(no-dot-config-targets) install %install \
kernelrelease
LINUXINCLUDE := \
-I$(srctree)/arch/$(SRCARCH)/include \
-I$(objtree)/arch/$(SRCARCH)/include/generated \
- $(if $(filter .,$(srctree)),,-I$(srctree)/include) \
+ $(if $(building_out_of_srctree),-I$(srctree)/include) \
-I$(objtree)/include \
$(USERINCLUDE)
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
export KBUILD_ARFLAGS
-# When compiling out-of-tree modules, put MODVERDIR in the module
-# tree rather than in the kernel tree. The kernel tree might
-# even be read-only.
-export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
-
# Files to ignore in find ... statements
export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
# At the same time when output Makefile generated, generate .gitignore to
# ignore whole output directory
outputmakefile:
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
$(Q)ln -fsn $(srctree) source
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
$(Q)test -e .gitignore || \
ifneq ($(GCC_TOOLCHAIN),)
CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
+ifeq ($(shell $(AS) --version 2>&1 | head -n 1 | grep clang),)
CLANG_FLAGS += -no-integrated-as
+endif
+CLANG_FLAGS += -Werror=unknown-warning-option
KBUILD_CFLAGS += $(CLANG_FLAGS)
KBUILD_AFLAGS += $(CLANG_FLAGS)
export CLANG_FLAGS
init-y := init/
drivers-y := drivers/ sound/
drivers-$(CONFIG_SAMPLES) += samples/
+drivers-$(CONFIG_KERNEL_HEADER_TEST) += include/
net-y := net/
libs-y := lib/
core-y := usr/
# warn about C99 declaration after statement
KBUILD_CFLAGS += -Wdeclaration-after-statement
+# Warn about unmarked fall-throughs in switch statement.
+KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough=3,)
+
# Variable Length Arrays (VLAs) should not be used anywhere in the kernel
KBUILD_CFLAGS += -Wvla
# change __FILE__ to the relative path from the srctree
KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
+# ensure -fcf-protection is disabled when using retpoline as it is
+# incompatible with -mindirect-branch=thunk-extern
+ifdef CONFIG_RETPOLINE
+KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
+endif
+
# use the deterministic mode of AR if available
KBUILD_ARFLAGS := $(call ar-option,D)
KBUILD_AFLAGS += $(ARCH_AFLAGS) $(KAFLAGS)
KBUILD_CFLAGS += $(ARCH_CFLAGS) $(KCFLAGS)
-# Use --build-id when available.
-LDFLAGS_BUILD_ID := $(call ld-option, --build-id)
-KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
-LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
+KBUILD_LDFLAGS_MODULE += --build-id
+LDFLAGS_vmlinux += --build-id
ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
LDFLAGS_vmlinux += $(call ld-option, -X,)
# Recurse until adjust_autoksyms.sh is satisfied
PHONY += autoksyms_recursive
-autoksyms_recursive: $(vmlinux-deps)
ifdef CONFIG_TRIM_UNUSED_KSYMS
+autoksyms_recursive: $(vmlinux-deps) modules.order
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
"$(MAKE) -f $(srctree)/Makefile vmlinux"
endif
targets := vmlinux
-# Some samples need headers_install.
-samples: headers_install
-
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
$(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
PHONY += $(vmlinux-dirs)
$(vmlinux-dirs): prepare
- $(Q)$(MAKE) $(build)=$@ need-builtin=1
+ $(Q)$(MAKE) $(build)=$@ need-builtin=1 need-modorder=1
filechk_kernel.release = \
echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
# archprepare is used in arch Makefiles and when processed asm symlink,
# version.h and scripts_basic is processed / created.
-PHONY += prepare archprepare prepare1 prepare3
+PHONY += prepare archprepare prepare3
# prepare3 is used to check if we are building in a separate output directory,
# and if so do:
# 1) Check that make has not been executed in the kernel src $(srctree)
prepare3: include/config/kernel.release
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
@$(kecho) ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config -o \
-d $(srctree)/include/config -o \
-d $(srctree)/arch/$(SRCARCH)/include/generated ]; then \
- echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
+ echo >&2 " $(srctree) is not clean, please run 'make ARCH=$(ARCH) mrproper'"; \
echo >&2 " in the '$(srctree)' directory.";\
/bin/false; \
fi;
endif
-prepare1: prepare3 outputmakefile asm-generic $(version_h) $(autoksyms_h) \
- include/generated/utsrelease.h
- $(cmd_crmodverdir)
-
-archprepare: archheaders archscripts prepare1 scripts
+archprepare: archheaders archscripts scripts prepare3 outputmakefile \
+ asm-generic $(version_h) $(autoksyms_h) include/generated/utsrelease.h
prepare0: archprepare
$(Q)$(MAKE) $(build)=scripts/mod
#Default location for installed headers
export INSTALL_HDR_PATH = $(objtree)/usr
-# If we do an all arch process set dst to include/arch-$(SRCARCH)
-hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(SRCARCH), dst=include)
+quiet_cmd_headers_install = INSTALL $(INSTALL_HDR_PATH)/include
+ cmd_headers_install = \
+ mkdir -p $(INSTALL_HDR_PATH); \
+ rsync -mrl --include='*/' --include='*\.h' --exclude='*' \
+ usr/include $(INSTALL_HDR_PATH)
-PHONY += archheaders archscripts
+PHONY += headers_install
+headers_install: headers
+ $(call cmd,headers_install)
-PHONY += __headers
-__headers: $(version_h) scripts_basic uapi-asm-generic archheaders archscripts
- $(Q)$(MAKE) $(build)=scripts build_unifdef
+PHONY += archheaders archscripts
-PHONY += headers_install_all
-headers_install_all:
- $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
+hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
-PHONY += headers_install
-headers_install: __headers
+PHONY += headers
+headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
$(if $(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/Kbuild),, \
$(error Headers not exportable for the $(SRCARCH) architecture))
- $(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
- $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst)
-
-PHONY += headers_check_all
-headers_check_all: headers_install_all
- $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
+ $(Q)$(MAKE) $(hdr-inst)=include/uapi
+ $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi
PHONY += headers_check
-headers_check: headers_install
- $(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
- $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst) HDRCHECK=1
+headers_check: headers
+ $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
+ $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi HDRCHECK=1
+
+ifdef CONFIG_HEADERS_INSTALL
+prepare: headers
+endif
ifdef CONFIG_HEADERS_CHECK
all: headers_check
endif
+PHONY += scripts_unifdef
+scripts_unifdef: scripts_basic
+ $(Q)$(MAKE) $(build)=scripts scripts/unifdef
+
# ---------------------------------------------------------------------------
# Kernel selftest
# using awk while concatenating to the final file.
PHONY += modules
-modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
- $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
+modules: $(if $(KBUILD_BUILTIN),vmlinux) modules.order modules.builtin
@$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh
-modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
- $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
+modules.order: $(vmlinux-dirs)
+ $(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(vmlinux-dirs)) > $@
+
+modbuiltin-dirs := $(addprefix _modbuiltin_, $(vmlinux-dirs))
-%/modules.builtin: include/config/auto.conf include/config/tristate.conf
- $(Q)$(MAKE) $(modbuiltin)=$*
+modules.builtin: $(modbuiltin-dirs)
+ $(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(vmlinux-dirs)) > $@
+PHONY += $(modbuiltin-dirs)
+# tristate.conf is not included from this Makefile. Add it as a prerequisite
+# here to make it self-healing in case somebody accidentally removes it.
+$(modbuiltin-dirs): include/config/tristate.conf
+ $(Q)$(MAKE) $(modbuiltin)=$(patsubst _modbuiltin_%,%,$@)
# Target to prepare building external modules
PHONY += modules_prepare
rm -f $(MODLIB)/build ; \
ln -s $(CURDIR) $(MODLIB)/build ; \
fi
- @cp -f $(objtree)/modules.order $(MODLIB)/
- @cp -f $(objtree)/modules.builtin $(MODLIB)/
+ @sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order
+ @sed 's:^:kernel/:' modules.builtin > $(MODLIB)/modules.builtin
@cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
# make distclean Remove editor backup files, patch leftover files and the like
# Directories & files removed with 'make clean'
-CLEAN_DIRS += $(MODVERDIR) include/ksym
+CLEAN_DIRS += include/ksym
CLEAN_FILES += modules.builtin.modinfo
# Directories & files removed with 'make mrproper'
-MRPROPER_DIRS += include/config usr/include include/generated \
+MRPROPER_DIRS += include/config include/generated \
arch/$(SRCARCH)/include/generated .tmp_objdiff
MRPROPER_FILES += .config .config.old .version \
- Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
+ Module.symvers \
signing_key.pem signing_key.priv signing_key.x509 \
x509.genkey extra_certificates signing_key.x509.keyid \
signing_key.x509.signer vmlinux-gdb.py
+# Directories & files removed with 'make distclean'
+DISTCLEAN_DIRS +=
+DISTCLEAN_FILES += tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
+
# clean - Delete most, but leave enough to build external modules
#
clean: rm-dirs := $(CLEAN_DIRS)
# distclean
#
+distclean: rm-dirs := $(wildcard $(DISTCLEAN_DIRS))
+distclean: rm-files := $(wildcard $(DISTCLEAN_FILES))
+
PHONY += distclean
distclean: mrproper
+ $(call cmd,rmdirs)
+ $(call cmd,rmfiles)
@find $(srctree) $(RCS_FIND_IGNORE) \
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
-o -name '*.bak' -o -name '#*#' -o -name '*%' \
# ---------------------------------------------------------------------------
PHONY += scripts_gdb
-scripts_gdb: prepare
+scripts_gdb: prepare0
$(Q)$(MAKE) $(build)=scripts/gdb
$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
PHONY += $(module-dirs) modules
$(module-dirs): prepare $(objtree)/Module.symvers
- $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
+ $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) need-modorder=1
modules: $(module-dirs)
@$(kecho) ' Building modules, stage 2.';
$(clean-dirs):
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
-clean: rm-dirs := $(MODVERDIR)
clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
PHONY += help
@echo ''
PHONY += prepare
-prepare:
- $(cmd_crmodverdir)
endif # KBUILD_EXTMOD
clean: $(clean-dirs)
-o -name '*.ko.*' \
-o -name '*.dtb' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
-o -name '*.dwo' -o -name '*.lst' \
- -o -name '*.su' \
+ -o -name '*.su' -o -name '*.mod' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.lex.c' -o -name '*.tab.[ch]' \
-o -name '*.asn1.[ch]' \
endif
checkstack:
$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
- $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
+ $(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
kernelrelease:
@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
tools/: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
+ $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/
tools/%: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
+ $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ $*
# Single targets
# ---------------------------------------------------------------------------
$(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
%.symtypes: prepare FORCE
$(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
-%.ko: %.o
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
# Modules
PHONY += /
/: ./
-# Make sure the latest headers are built for Documentation
-Documentation/ samples/: headers_install
%/: prepare FORCE
$(Q)$(MAKE) KBUILD_MODULES=1 $(build)=$(build-dir)
cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
$(KERNELRELEASE)
-# Create temporary dir for module support files
-# clean it up only when building all modules
-cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
- $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
-
# read saved command lines for existing targets
existing-targets := $(wildcard $(sort $(targets)))
projects / thirdparty / linux.git / blobdiff