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-rw-r--r--Makefile248
1 files changed, 189 insertions, 59 deletions
diff --git a/Makefile b/Makefile
index f42418556507..54e1ae602000 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
-VERSION = 6
-PATCHLEVEL = 15
+VERSION = 7
+PATCHLEVEL = 0
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION =
NAME = Baby Opossum Posse
# *DOCUMENTATION*
@@ -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)
@@ -458,6 +461,11 @@ endif
HOSTRUSTC = rustc
HOSTPKG_CONFIG = pkg-config
+# the KERNELDOC macro needs to be exported, as scripts/Makefile.build
+# has a logic to call it
+KERNELDOC = $(srctree)/tools/docs/kernel-doc
+export KERNELDOC
+
KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
-O2 -fomit-frame-pointer -std=gnu11
KBUILD_USERCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS)
@@ -468,19 +476,27 @@ KBUILD_USERLDFLAGS := $(USERLDFLAGS)
export rust_common_flags := --edition=2021 \
-Zbinary_dep_depinfo=y \
-Astable_features \
+ -Aunused_features \
-Dnon_ascii_idents \
-Dunsafe_op_in_unsafe_fn \
-Wmissing_docs \
-Wrust_2018_idioms \
-Wunreachable_pub \
-Wclippy::all \
+ -Wclippy::as_ptr_cast_mut \
+ -Wclippy::as_underscore \
+ -Wclippy::cast_lossless \
-Wclippy::ignored_unit_patterns \
+ -Aclippy::incompatible_msrv \
-Wclippy::mut_mut \
-Wclippy::needless_bitwise_bool \
- -Wclippy::needless_continue \
-Aclippy::needless_lifetimes \
-Wclippy::no_mangle_with_rust_abi \
+ -Wclippy::ptr_as_ptr \
+ -Wclippy::ptr_cast_constness \
+ -Wclippy::ref_as_ptr \
-Wclippy::undocumented_unsafe_blocks \
+ -Aclippy::uninlined_format_args \
-Wclippy::unnecessary_safety_comment \
-Wclippy::unnecessary_safety_doc \
-Wrustdoc::missing_crate_level_docs \
@@ -491,7 +507,7 @@ KBUILD_HOSTCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) \
KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) \
-I $(srctree)/scripts/include
KBUILD_HOSTRUSTFLAGS := $(rust_common_flags) -O -Cstrip=debuginfo \
- -Zallow-features= $(HOSTRUSTFLAGS)
+ -Zallow-features=
KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
KBUILD_PROCMACROLDFLAGS := $(or $(PROCMACROLDFLAGS),$(KBUILD_HOSTLDFLAGS))
@@ -502,6 +518,7 @@ ifneq ($(LLVM),)
CC = $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
LD = $(LLVM_PREFIX)ld.lld$(LLVM_SUFFIX)
AR = $(LLVM_PREFIX)llvm-ar$(LLVM_SUFFIX)
+LLVM_LINK = $(LLVM_PREFIX)llvm-link$(LLVM_SUFFIX)
NM = $(LLVM_PREFIX)llvm-nm$(LLVM_SUFFIX)
OBJCOPY = $(LLVM_PREFIX)llvm-objcopy$(LLVM_SUFFIX)
OBJDUMP = $(LLVM_PREFIX)llvm-objdump$(LLVM_SUFFIX)
@@ -539,6 +556,7 @@ LZMA = lzma
LZ4 = lz4
XZ = xz
ZSTD = zstd
+TAR = tar
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
@@ -573,7 +591,6 @@ LINUXINCLUDE := \
KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE
KBUILD_CFLAGS :=
-KBUILD_CFLAGS += -std=gnu11
KBUILD_CFLAGS += -fshort-wchar
KBUILD_CFLAGS += -funsigned-char
KBUILD_CFLAGS += -fno-common
@@ -614,11 +631,11 @@ export RUSTC_BOOTSTRAP := 1
export CLIPPY_CONF_DIR := $(srctree)
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
+export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_QUIET RUSTC_OR_CLIPPY BINDGEN LLVM_LINK
export HOSTRUSTC KBUILD_HOSTRUSTFLAGS
export CPP AR NM STRIP OBJCOPY OBJDUMP READELF PAHOLE RESOLVE_BTFIDS LEX YACC AWK INSTALLKERNEL
export PERL PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
-export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD
+export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD TAR
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS KBUILD_PROCMACROLDFLAGS LDFLAGS_MODULE
export KBUILD_USERCFLAGS KBUILD_USERLDFLAGS
@@ -662,14 +679,19 @@ print_env_for_makefile = \
echo "export KBUILD_OUTPUT = $(CURDIR)"
endif
-quiet_cmd_makefile = GEN Makefile
- cmd_makefile = { \
+filechk_makefile = { \
echo "\# Automatically generated by $(abs_srctree)/Makefile: don't edit"; \
$(print_env_for_makefile); \
echo "include $(abs_srctree)/Makefile"; \
- } > Makefile
+ }
+
+$(objtree)/Makefile: FORCE
+ $(call filechk,makefile)
+
+# Prevent $(srcroot)/Makefile from inhibiting the rule to run.
+PHONY += $(objtree)/Makefile
-outputmakefile:
+outputmakefile: $(objtree)/Makefile
ifeq ($(KBUILD_EXTMOD),)
@if [ -f $(srctree)/.config -o \
-d $(srctree)/include/config -o \
@@ -690,18 +712,18 @@ else
fi
endif
$(Q)ln -fsn $(srcroot) source
- $(call cmd,makefile)
$(Q)test -e .gitignore || \
{ echo "# this is build directory, ignore it"; echo "*"; } > .gitignore
endif
# The expansion should be delayed until arch/$(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
@@ -722,7 +744,7 @@ 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 $@
@@ -750,7 +772,7 @@ targets :=
# Normally, just do built-in.
KBUILD_MODULES :=
-KBUILD_BUILTIN := 1
+KBUILD_BUILTIN := y
# If we have only "make modules", don't compile built-in objects.
ifeq ($(MAKECMDGOALS),modules)
@@ -762,11 +784,11 @@ endif
# Just "make" or "make all" shall build modules as well
ifneq ($(filter all modules nsdeps compile_commands.json clang-%,$(MAKECMDGOALS)),)
- KBUILD_MODULES := 1
+ KBUILD_MODULES := y
endif
ifeq ($(MAKECMDGOALS),)
- KBUILD_MODULES := 1
+ KBUILD_MODULES := y
endif
export KBUILD_MODULES KBUILD_BUILTIN
@@ -775,6 +797,18 @@ ifdef need-config
include $(objtree)/include/config/auto.conf
endif
+CC_FLAGS_DIALECT := -std=gnu11
+# Allow including a tagged struct or union anonymously in another struct/union.
+CC_FLAGS_DIALECT += $(CONFIG_CC_MS_EXTENSIONS)
+# Clang enables warnings about GNU and Microsoft extensions by default, disable
+# them because this is expected with the above options.
+ifdef CONFIG_CC_IS_CLANG
+CC_FLAGS_DIALECT += -Wno-gnu
+CC_FLAGS_DIALECT += -Wno-microsoft-anon-tag
+endif
+export CC_FLAGS_DIALECT
+KBUILD_CFLAGS += $(CC_FLAGS_DIALECT)
+
ifeq ($(KBUILD_EXTMOD),)
# Objects we will link into vmlinux / subdirs we need to visit
core-y :=
@@ -799,6 +833,39 @@ ifdef CONFIG_FUNCTION_TRACER
CC_FLAGS_FTRACE := -pg
endif
+ifdef CONFIG_TRACEPOINTS
+# To check for unused tracepoints (tracepoints that are defined but never
+# called), run with:
+#
+# make UT=1
+#
+# Each unused tracepoints can take up to 5KB of memory in the running kernel.
+# It is best to remove any that are not used.
+#
+# This command line option will be removed when all current unused
+# tracepoints are removed.
+
+ifeq ("$(origin UT)", "command line")
+ WARN_ON_UNUSED_TRACEPOINTS := $(UT)
+endif
+endif # CONFIG_TRACEPOINTS
+
+export WARN_ON_UNUSED_TRACEPOINTS
+
+# Per-version Rust flags. These are like `rust_common_flags`, but may
+# depend on the Rust compiler version (e.g. using `rustc-min-version`).
+#
+# `-Aclippy::precedence`: the lint was extended in Rust 1.85.0 to
+# include bitmasking and shift operations. However, because it generated
+# many hits, in Rust 1.86.0 it was split into a new `precedence_bits`
+# lint which is not enabled by default.
+rust_common_flags_per_version := \
+ $(if $(call rustc-min-version,108600),,-Aclippy::precedence)
+
+rust_common_flags += $(rust_common_flags_per_version)
+KBUILD_HOSTRUSTFLAGS += $(rust_common_flags_per_version) $(HOSTRUSTFLAGS)
+KBUILD_RUSTFLAGS += $(rust_common_flags_per_version)
+
include $(srctree)/arch/$(SRCARCH)/Makefile
ifdef need-config
@@ -890,9 +957,6 @@ stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong
KBUILD_CFLAGS += $(stackp-flags-y)
-KBUILD_RUSTFLAGS-$(CONFIG_WERROR) += -Dwarnings
-KBUILD_RUSTFLAGS += $(KBUILD_RUSTFLAGS-y)
-
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
KBUILD_RUSTFLAGS += -Cforce-frame-pointers=y
@@ -925,6 +989,12 @@ 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)
@@ -932,6 +1002,13 @@ KBUILD_CFLAGS += $(call cc-option,-fzero-init-padding-bits=all)
# for the randomize_kstack_offset feature. Disable it for all compilers.
KBUILD_CFLAGS += $(call cc-option, -fno-stack-clash-protection)
+# Get details on warnings generated due to GCC value tracking.
+KBUILD_CFLAGS += $(call cc-option, -fdiagnostics-show-context=2)
+
+# Show inlining notes for __attribute__((warning/error)) call chains.
+# GCC supports this unconditionally while Clang 23+ provides a flag.
+KBUILD_CFLAGS += $(call cc-option, -fdiagnostics-show-inlining-chain)
+
# Clear used registers at func exit (to reduce data lifetime and ROP gadgets).
ifdef CONFIG_ZERO_CALL_USED_REGS
KBUILD_CFLAGS += -fzero-call-used-regs=used-gpr
@@ -994,6 +1071,7 @@ endif
ifdef CONFIG_LTO_CLANG
ifdef CONFIG_LTO_CLANG_THIN
CC_FLAGS_LTO := -flto=thin -fsplit-lto-unit
+KBUILD_LDFLAGS += $(call ld-option,--lto-whole-program-visibility -mllvm -always-rename-promoted-locals=false)
else
CC_FLAGS_LTO := -flto
endif
@@ -1009,7 +1087,7 @@ KBUILD_AFLAGS += -fno-lto
export CC_FLAGS_LTO
endif
-ifdef CONFIG_CFI_CLANG
+ifdef CONFIG_CFI
CC_FLAGS_CFI := -fsanitize=kcfi
ifdef CONFIG_CFI_ICALL_NORMALIZE_INTEGERS
CC_FLAGS_CFI += -fsanitize-cfi-icall-experimental-normalize-integers
@@ -1053,10 +1131,6 @@ NOSTDINC_FLAGS += -nostdinc
# perform bounds checking.
KBUILD_CFLAGS += $(call cc-option, -fstrict-flex-arrays=3)
-#Currently, disable -Wstringop-overflow for GCC 11, globally.
-KBUILD_CFLAGS-$(CONFIG_CC_NO_STRINGOP_OVERFLOW) += $(call cc-option, -Wno-stringop-overflow)
-KBUILD_CFLAGS-$(CONFIG_CC_STRINGOP_OVERFLOW) += $(call cc-option, -Wstringop-overflow)
-
# disable invalid "can't wrap" optimizations for signed / pointers
KBUILD_CFLAGS += -fno-strict-overflow
@@ -1073,12 +1147,14 @@ KBUILD_CFLAGS += -fno-builtin-wcslen
# change __FILE__ to the relative path to the source directory
ifdef building_out_of_srctree
-KBUILD_CPPFLAGS += $(call cc-option,-ffile-prefix-map=$(srcroot)/=)
-KBUILD_RUSTFLAGS += --remap-path-prefix=$(srcroot)/=
+KBUILD_CPPFLAGS += -fmacro-prefix-map=$(srcroot)/=
+ifeq ($(call rustc-option-yn, --remap-path-scope=macro),y)
+KBUILD_RUSTFLAGS += --remap-path-prefix=$(srcroot)/= --remap-path-scope=macro
+endif
endif
# include additional Makefiles when needed
-include-y := scripts/Makefile.extrawarn
+include-y := scripts/Makefile.warn
include-$(CONFIG_DEBUG_INFO) += scripts/Makefile.debug
include-$(CONFIG_DEBUG_INFO_BTF)+= scripts/Makefile.btf
include-$(CONFIG_KASAN) += scripts/Makefile.kasan
@@ -1087,8 +1163,10 @@ include-$(CONFIG_KMSAN) += scripts/Makefile.kmsan
include-$(CONFIG_UBSAN) += scripts/Makefile.ubsan
include-$(CONFIG_KCOV) += scripts/Makefile.kcov
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)/, $(include-y))
@@ -1130,12 +1208,22 @@ ifneq ($(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS),)
LDFLAGS_vmlinux += --emit-relocs --discard-none
endif
-# Align the bit size of userspace programs with the kernel
-KBUILD_USERCFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
-KBUILD_USERLDFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
+# Align the architecture of userspace programs with the kernel
+USERFLAGS_FROM_KERNEL := --target=%
+
+ifdef CONFIG_ARCH_USERFLAGS
+KBUILD_USERCFLAGS += $(CONFIG_ARCH_USERFLAGS)
+KBUILD_USERLDFLAGS += $(CONFIG_ARCH_USERFLAGS)
+else
+# If not overridden also inherit the bit size
+USERFLAGS_FROM_KERNEL += -m32 -m64
+endif
+
+KBUILD_USERCFLAGS += $(filter $(USERFLAGS_FROM_KERNEL), $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
+KBUILD_USERLDFLAGS += $(filter $(USERFLAGS_FROM_KERNEL), $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS))
# userspace programs are linked via the compiler, use the correct linker
-ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_LD_IS_LLD),yy)
+ifdef CONFIG_CC_IS_CLANG
KBUILD_USERLDFLAGS += --ld-path=$(LD)
endif
@@ -1148,6 +1236,14 @@ 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
@@ -1190,13 +1286,8 @@ export ARCH_LIB := $(filter %/, $(libs-y))
export ARCH_DRIVERS := $(drivers-y) $(drivers-m)
# Externally visible symbols (used by link-vmlinux.sh)
-KBUILD_VMLINUX_OBJS := ./built-in.a
-ifdef CONFIG_MODULES
-KBUILD_VMLINUX_OBJS += $(patsubst %/, %/lib.a, $(filter %/, $(libs-y)))
+KBUILD_VMLINUX_OBJS := built-in.a $(patsubst %/, %/lib.a, $(filter %/, $(libs-y)))
KBUILD_VMLINUX_LIBS := $(filter-out %/, $(libs-y))
-else
-KBUILD_VMLINUX_LIBS := $(patsubst %/,%/lib.a, $(libs-y))
-endif
export KBUILD_VMLINUX_LIBS
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
@@ -1204,7 +1295,7 @@ export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
ifdef CONFIG_TRIM_UNUSED_KSYMS
# For the kernel to actually contain only the needed exported symbols,
# we have to build modules as well to determine what those symbols are.
-KBUILD_MODULES := 1
+KBUILD_MODULES := y
endif
# '$(AR) mPi' needs 'T' to workaround the bug of llvm-ar <= 14
@@ -1371,7 +1462,7 @@ PHONY += archheaders archscripts
hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
PHONY += headers
-headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
+headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders
ifdef HEADER_ARCH
$(Q)$(MAKE) -f $(srctree)/Makefile HEADER_ARCH= SRCARCH=$(HEADER_ARCH) headers
else
@@ -1383,6 +1474,10 @@ 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) $(build)=scripts scripts/unifdef
@@ -1440,13 +1535,22 @@ ifneq ($(wildcard $(resolve_btfids_O)),)
$(Q)$(MAKE) -sC $(srctree)/tools/bpf/resolve_btfids O=$(resolve_btfids_O) clean
endif
+PHONY += objtool_clean objtool_mrproper
+
+objtool_O = $(abspath $(objtree))/tools/objtool
+
+objtool_clean objtool_mrproper:
+ifneq ($(wildcard $(objtool_O)),)
+ $(Q)$(MAKE) -sC $(abs_srctree)/tools/objtool O=$(objtool_O) srctree=$(abs_srctree) $(patsubst objtool_%,%,$@)
+endif
+
tools/: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/
+ $(Q)$(MAKE) O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/
tools/%: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ $*
+ $(Q)$(MAKE) O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ $*
# ---------------------------------------------------------------------------
# Kernel selftest
@@ -1472,6 +1576,12 @@ ifneq ($(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
@@ -1489,7 +1599,7 @@ 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
@@ -1522,14 +1632,14 @@ 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
@@ -1544,7 +1654,7 @@ all: modules
# the built-in objects during the descend as well, in order to
# make sure the checksums are up to date before we record them.
ifdef CONFIG_MODVERSIONS
- KBUILD_BUILTIN := 1
+ KBUILD_BUILTIN := y
endif
# Build modules
@@ -1553,7 +1663,7 @@ endif
# *.ko are usually independent of vmlinux, but CONFIG_DEBUG_INFO_BTF_MODULES
# is an exception.
ifdef CONFIG_DEBUG_INFO_BTF_MODULES
-KBUILD_BUILTIN := 1
+KBUILD_BUILTIN := y
modules: vmlinux
endif
@@ -1578,7 +1688,7 @@ CLEAN_FILES += vmlinux.symvers modules-only.symvers \
modules.builtin.ranges vmlinux.o.map vmlinux.unstripped \
compile_commands.json rust/test \
rust-project.json .vmlinux.objs .vmlinux.export.c \
- .builtin-dtbs-list .builtin-dtb.S
+ .builtin-dtbs-list .builtin-dtbs.S
# Directories & files removed with 'make mrproper'
MRPROPER_FILES += include/config include/generated \
@@ -1590,7 +1700,8 @@ MRPROPER_FILES += include/config include/generated \
certs/x509.genkey \
vmlinux-gdb.py \
rpmbuild \
- rust/libmacros.so rust/libmacros.dylib
+ rust/libmacros.so rust/libmacros.dylib \
+ rust/libpin_init_internal.so rust/libpin_init_internal.dylib
# clean - Delete most, but leave enough to build external modules
#
@@ -1602,7 +1713,7 @@ vmlinuxclean:
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
$(Q)$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) clean)
-clean: archclean vmlinuxclean resolve_btfids_clean
+clean: archclean vmlinuxclean resolve_btfids_clean objtool_clean
# mrproper - Delete all generated files, including .config
#
@@ -1613,7 +1724,7 @@ PHONY += $(mrproper-dirs) mrproper
$(mrproper-dirs):
$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
-mrproper: clean $(mrproper-dirs)
+mrproper: clean objtool_mrproper $(mrproper-dirs)
$(call cmd,rmfiles)
@find . $(RCS_FIND_IGNORE) \
\( -name '*.rmeta' \) \
@@ -1635,6 +1746,8 @@ 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 $@
%pkg: include/config/kernel.release FORCE
@@ -1772,6 +1885,8 @@ help:
@echo ' c: extra checks in the configuration stage (Kconfig)'
@echo ' e: warnings are being treated as errors'
@echo ' Multiple levels can be combined with W=12 or W=123'
+ @echo ' make UT=1 [targets] Warn if a tracepoint is defined but not used.'
+ @echo ' [ This will be removed when all current unused tracepoints are eliminated. ]'
@$(if $(dtstree), \
echo ' make CHECK_DTBS=1 [targets] Check all generated dtb files against schema'; \
echo ' This can be applied both to "dtbs" and to individual "foo.dtb" targets' ; \
@@ -1798,7 +1913,9 @@ $(help-board-dirs): help-%:
# Documentation targets
# ---------------------------------------------------------------------------
DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
- linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
+ linkcheckdocs dochelp refcheckdocs texinfodocs infodocs mandocs \
+ htmldocs-redirects
+
PHONY += $(DOC_TARGETS)
$(DOC_TARGETS):
$(Q)$(MAKE) $(build)=Documentation $@
@@ -1825,10 +1942,17 @@ rusttest: prepare
$(Q)$(MAKE) $(build)=rust $@
# Formatting targets
+#
+# Generated files as well as vendored crates are skipped.
PHONY += rustfmt rustfmtcheck
rustfmt:
$(Q)find $(srctree) $(RCS_FIND_IGNORE) \
+ \( \
+ -path $(srctree)/rust/proc-macro2 \
+ -o -path $(srctree)/rust/quote \
+ -o -path $(srctree)/rust/syn \
+ \) -prune -o \
-type f -a -name '*.rs' -a ! -name '*generated*' -print \
| xargs $(RUSTFMT) $(rustfmt_flags)
@@ -1866,7 +1990,7 @@ filechk_kernel.release = echo $(KERNELRELEASE)
# We are always building only modules.
KBUILD_BUILTIN :=
-KBUILD_MODULES := 1
+KBUILD_MODULES := y
build-dir := .
@@ -1876,12 +2000,18 @@ 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:
@@ -1994,7 +2124,7 @@ endif
single-goals := $(addprefix $(build-dir)/, $(single-no-ko))
-KBUILD_MODULES := 1
+KBUILD_MODULES := y
endif