Makefile

# SPDX-License-Identifier: GPL-2.0
VERSION = 6
PATCHLEVEL = 1
SUBLEVEL = 167
EXTRAVERSION = -ophub
NAME = Curry Ramen

$(if $(filter __%, $(MAKECMDGOALS)), \
	$(error targets prefixed with '__' are only for internal use))

PHONY := __all
__all:

ifneq ($(sub_make_done),1)
MAKEFLAGS += -rR
unexport LC_ALL
LC_COLLATE=C
LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC
unexport GREP_OPTIONS

ifeq ("$(origin V)", "command line")
  KBUILD_VERBOSE = $(V)
endif
ifndef KBUILD_VERBOSE
  KBUILD_VERBOSE = 0
endif

ifeq ($(KBUILD_VERBOSE),1)
  quiet =
  Q =
else
  quiet=quiet_
  Q = @
endif

ifeq ($(filter 3.%,$(MAKE_VERSION)),)
silence:=$(findstring s,$(firstword -$(MAKEFLAGS)))
else
silence:=$(findstring s,$(filter-out --%,$(MAKEFLAGS)))
endif

ifeq ($(silence),s)
quiet=silent_
KBUILD_VERBOSE = 0
endif

export quiet Q KBUILD_VERBOSE

ifeq ("$(origin C)", "command line")
  KBUILD_CHECKSRC = $(C)
endif
ifndef KBUILD_CHECKSRC
  KBUILD_CHECKSRC = 0
endif
export KBUILD_CHECKSRC

ifeq ("$(origin CLIPPY)", "command line")
  KBUILD_CLIPPY := $(CLIPPY)
endif
export KBUILD_CLIPPY

ifeq ("$(origin M)", "command line")
  KBUILD_EXTMOD := $(M)
endif
$(if $(word 2, $(KBUILD_EXTMOD)), \
	$(error building multiple external modules is not supported))
$(foreach x, % :, $(if $(findstring $x, $(KBUILD_EXTMOD)), \
	$(error module directory path cannot contain '$x')))
ifneq ($(filter %/, $(KBUILD_EXTMOD)),)
KBUILD_EXTMOD := $(shell dirname $(KBUILD_EXTMOD).)
endif
export KBUILD_EXTMOD

ifeq ("$(origin O)", "command line")
  KBUILD_OUTPUT := $(O)
endif

ifneq ($(KBUILD_OUTPUT),)
abs_objtree := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) && pwd)
$(if $(abs_objtree),, \
     $(error failed to create output directory "$(KBUILD_OUTPUT)"))
abs_objtree := $(realpath $(abs_objtree))
else
abs_objtree := $(CURDIR)
endif

ifeq ($(abs_objtree),$(CURDIR))
MAKEFLAGS += --no-print-directory
else
need-sub-make := 1
endif

this-makefile := $(lastword $(MAKEFILE_LIST))
abs_srctree := $(realpath $(dir $(this-makefile)))

ifneq ($(words $(subst :, ,$(abs_srctree))), 1)
$(error source directory cannot contain spaces or colons)
endif

ifneq ($(abs_srctree),$(abs_objtree))
MAKEFLAGS += --include-dir=$(abs_srctree)
endif

ifneq ($(filter 3.%,$(MAKE_VERSION)),)
need-sub-make := 1
$(this-makefile): ;
endif

export abs_srctree abs_objtree
export sub_make_done := 1

ifeq ($(need-sub-make),1)
PHONY += $(MAKECMDGOALS) __sub-make
$(filter-out $(this-makefile), $(MAKECMDGOALS)) __all: __sub-make
	@:
__sub-make:
	$(Q)$(MAKE) -C $(abs_objtree) -f $(abs_srctree)/Makefile $(MAKECMDGOALS)
endif
endif

ifeq ($(need-sub-make),)
MAKEFLAGS += --no-print-directory

ifeq ($(abs_srctree),$(abs_objtree))
        srctree := .
	building_out_of_srctree :=
else
        ifeq ($(abs_srctree)/,$(dir $(abs_objtree)))
                srctree := ..
        else
                srctree := $(abs_srctree)
        endif
	building_out_of_srctree := 1
endif

ifneq ($(KBUILD_ABS_SRCTREE),)
srctree := $(abs_srctree)
endif

objtree		:= .
VPATH		:= $(srctree)

export building_out_of_srctree srctree objtree VPATH

clean-targets := %clean mrproper cleandocs
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
no-compiler-targets := $(no-dot-config-targets) install dtbs_install \
			headers_install modules_install kernelrelease image_name
no-sync-config-targets := $(no-dot-config-targets) %install kernelrelease \
			  image_name
single-targets := %.a %.i %.rsi %.ko %.lds %.ll %.lst %.mod %.o %.s %.symtypes %/

config-build	:=
mixed-build	:=
need-config	:= 1
need-compiler	:= 1
may-sync-config	:= 1
single-build	:=

ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
		need-config :=
	endif
endif

ifneq ($(filter $(no-compiler-targets), $(MAKECMDGOALS)),)
	ifeq ($(filter-out $(no-compiler-targets), $(MAKECMDGOALS)),)
		need-compiler :=
	endif
endif

ifneq ($(filter $(no-sync-config-targets), $(MAKECMDGOALS)),)
	ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),)
		may-sync-config :=
	endif
endif

ifneq ($(KBUILD_EXTMOD),)
	may-sync-config :=
endif

ifeq ($(KBUILD_EXTMOD),)
        ifneq ($(filter %config,$(MAKECMDGOALS)),)
		config-build := 1
                ifneq ($(words $(MAKECMDGOALS)),1)
			mixed-build := 1
                endif
        endif
endif

ifneq ($(filter $(single-targets), $(MAKECMDGOALS)),)
	single-build := 1
	ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),)
		mixed-build := 1
	endif
endif

ifneq ($(filter $(clean-targets),$(MAKECMDGOALS)),)
        ifneq ($(filter-out $(clean-targets),$(MAKECMDGOALS)),)
		mixed-build := 1
        endif
endif

ifneq ($(filter install,$(MAKECMDGOALS)),)
        ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
		mixed-build := 1
        endif
endif

ifdef mixed-build
PHONY += $(MAKECMDGOALS) __build_one_by_one
$(MAKECMDGOALS): __build_one_by_one
	@:
__build_one_by_one:
	$(Q)set -e; \
	for i in $(MAKECMDGOALS); do \
		$(MAKE) -f $(srctree)/Makefile $$i; \
	done
else
include $(srctree)/scripts/Kbuild.include

KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

include $(srctree)/scripts/subarch.include

ARCH		?= $(SUBARCH)
UTS_MACHINE 	:= $(ARCH)
SRCARCH 	:= $(ARCH)

ifeq ($(ARCH),i386)
        SRCARCH := x86
endif
ifeq ($(ARCH),x86_64)
        SRCARCH := x86
endif

ifeq ($(ARCH),sparc32)
       SRCARCH := sparc
endif
ifeq ($(ARCH),sparc64)
       SRCARCH := sparc
endif

ifeq ($(ARCH),parisc64)
       SRCARCH := parisc
endif

export cross_compiling :=
ifneq ($(SRCARCH),$(SUBARCH))
cross_compiling := 1
endif

KCONFIG_CONFIG	?= .config
export KCONFIG_CONFIG

CONFIG_SHELL := sh

HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)

ifneq ($(LLVM),)
HOSTCC	= $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
HOSTCXX	= $(LLVM_PREFIX)clang++$(LLVM_SUFFIX)
else
HOSTCC	= gcc
HOSTCXX	= g++
endif
HOSTRUSTC = rustc
HOSTPKG_CONFIG	= pkg-config

KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
			 -O2 -fomit-frame-pointer -std=gnu11
KBUILD_USERCFLAGS  := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS)
KBUILD_USERLDFLAGS := $(USERLDFLAGS)

export rust_common_flags := --edition=2021 \
			    -Zbinary_dep_depinfo=y \
			    -Dunsafe_op_in_unsafe_fn -Drust_2018_idioms \
			    -Dunreachable_pub -Dnon_ascii_idents \
			    -Wmissing_docs \
			    -Drustdoc::missing_crate_level_docs \
			    -Dclippy::correctness -Dclippy::style \
			    -Dclippy::suspicious -Dclippy::complexity \
			    -Dclippy::perf \
			    -Dclippy::let_unit_value -Dclippy::mut_mut \
			    -Dclippy::needless_bitwise_bool \
			    -Dclippy::needless_continue \
			    -Wclippy::dbg_macro

KBUILD_HOSTCFLAGS   := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
KBUILD_HOSTRUSTFLAGS := $(rust_common_flags) -O -Cstrip=debuginfo \
			-Zallow-features= $(HOSTRUSTFLAGS)
KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
KBUILD_HOSTLDLIBS   := $(HOST_LFS_LIBS) $(HOSTLDLIBS)

CPP		= $(CC) -E
ifneq ($(LLVM),)
CC		= $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
LD		= $(LLVM_PREFIX)ld.lld$(LLVM_SUFFIX)
AR		= $(LLVM_PREFIX)llvm-ar$(LLVM_SUFFIX)
NM		= $(LLVM_PREFIX)llvm-nm$(LLVM_SUFFIX)
OBJCOPY		= $(LLVM_PREFIX)llvm-objcopy$(LLVM_SUFFIX)
OBJDUMP		= $(LLVM_PREFIX)llvm-objdump$(LLVM_SUFFIX)
READELF		= $(LLVM_PREFIX)llvm-readelf$(LLVM_SUFFIX)
STRIP		= $(LLVM_PREFIX)llvm-strip$(LLVM_SUFFIX)
else
CC		= $(CROSS_COMPILE)gcc
LD		= $(CROSS_COMPILE)ld
AR		= $(CROSS_COMPILE)ar
NM		= $(CROSS_COMPILE)nm
OBJCOPY		= $(CROSS_COMPILE)objcopy
OBJDUMP		= $(CROSS_COMPILE)objdump
READELF		= $(CROSS_COMPILE)readelf
STRIP		= $(CROSS_COMPILE)strip
endif
RUSTC		= rustc
RUSTDOC		= rustdoc
RUSTFMT		= rustfmt
CLIPPY_DRIVER	= clippy-driver
BINDGEN		= bindgen
CARGO		= cargo
PAHOLE		= pahole
RESOLVE_BTFIDS	= $(objtree)/tools/bpf/resolve_btfids/resolve_btfids
LEX		= flex
YACC		= bison
AWK		= awk
INSTALLKERNEL  := installkernel
DEPMOD		= depmod
PERL		= perl
PYTHON3		= python3
CHECK		= sparse
BASH		= bash
KGZIP		= gzip
KBZIP2		= bzip2
KLZOP		= lzop
LZMA		= lzma
LZ4		= lz4
XZ		= xz
ZSTD		= zstd

PAHOLE_FLAGS	= $(shell PAHOLE=$(PAHOLE) $(srctree)/scripts/pahole-flags.sh)

CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
		  -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
NOSTDINC_FLAGS :=
CFLAGS_MODULE   =
RUSTFLAGS_MODULE =
AFLAGS_MODULE   =
LDFLAGS_MODULE  =
CFLAGS_KERNEL	=
RUSTFLAGS_KERNEL =
AFLAGS_KERNEL	=
LDFLAGS_vmlinux =

USERINCLUDE    := \
		-I$(srctree)/arch/$(SRCARCH)/include/uapi \
		-I$(objtree)/arch/$(SRCARCH)/include/generated/uapi \
		-I$(srctree)/include/uapi \
		-I$(objtree)/include/generated/uapi \
                -include $(srctree)/include/linux/compiler-version.h \
                -include $(srctree)/include/linux/kconfig.h

LINUXINCLUDE    := \
		-I$(srctree)/arch/$(SRCARCH)/include \
		-I$(objtree)/arch/$(SRCARCH)/include/generated \
		$(if $(building_out_of_srctree),-I$(srctree)/include) \
		-I$(objtree)/include \
		$(USERINCLUDE)

KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
		   -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
		   -Werror=implicit-function-declaration -Werror=implicit-int \
		   -Werror=return-type -Wno-format-security \
		   -std=gnu11
KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_RUSTFLAGS := $(rust_common_flags) \
		    --target=$(objtree)/rust/target.json \
		    -Cpanic=abort -Cembed-bitcode=n -Clto=n \
		    -Cforce-unwind-tables=n -Ccodegen-units=1 \
		    -Csymbol-mangling-version=v0 \
		    -Crelocation-model=static \
		    -Zfunction-sections=n \
		    -Dclippy::float_arithmetic

KBUILD_AFLAGS_KERNEL :=
KBUILD_CFLAGS_KERNEL :=
KBUILD_RUSTFLAGS_KERNEL :=
KBUILD_AFLAGS_MODULE  := -DMODULE
KBUILD_CFLAGS_MODULE  := -DMODULE
KBUILD_RUSTFLAGS_MODULE := --cfg MODULE
KBUILD_LDFLAGS_MODULE :=
KBUILD_LDFLAGS :=
CLANG_FLAGS :=

ifeq ($(KBUILD_CLIPPY),1)
	RUSTC_OR_CLIPPY_QUIET := CLIPPY
	RUSTC_OR_CLIPPY = $(CLIPPY_DRIVER)
else
	RUSTC_OR_CLIPPY_QUIET := RUSTC
	RUSTC_OR_CLIPPY = $(RUSTC)
endif

ifdef RUST_LIB_SRC
	export RUST_LIB_SRC
endif

export RUSTC_BOOTSTRAP := 1

export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC HOSTPKG_CONFIG
export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_QUIET RUSTC_OR_CLIPPY BINDGEN CARGO
export HOSTRUSTC KBUILD_HOSTRUSTFLAGS