# SPDX-License-Identifier: GPL-2.0
VERSION = 5
-PATCHLEVEL = 6
+PATCHLEVEL = 7
SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc1
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*
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
+ %asm-generic kernelversion %src-pkg dt_binding_check \
+ outputmakefile
no-sync-config-targets := $(no-dot-config-targets) install %install \
kernelrelease
single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.s %.symtypes %/
KCONFIG_CONFIG ?= .config
export KCONFIG_CONFIG
+# Default file for 'make defconfig'. This may be overridden by arch-Makefile.
+export KBUILD_DEFCONFIG := defconfig
+
# SHELL used by kbuild
CONFIG_SHELL := sh
HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
-HOSTCC = gcc
-HOSTCXX = g++
+ifneq ($(LLVM),)
+HOSTCC = clang
+HOSTCXX = clang++
+else
+HOSTCC = gcc
+HOSTCXX = g++
+endif
KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
-fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
$(HOSTCFLAGS)
-KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
+KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
# Make variables (CC, etc...)
-AS = $(CROSS_COMPILE)as
-LD = $(CROSS_COMPILE)ld
-CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
+ifneq ($(LLVM),)
+CC = clang
+LD = ld.lld
+AR = llvm-ar
+NM = llvm-nm
+OBJCOPY = llvm-objcopy
+OBJDUMP = llvm-objdump
+READELF = llvm-readelf
+OBJSIZE = llvm-size
+STRIP = llvm-strip
+else
+CC = $(CROSS_COMPILE)gcc
+LD = $(CROSS_COMPILE)ld
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
-STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
-OBJSIZE = $(CROSS_COMPILE)size
READELF = $(CROSS_COMPILE)readelf
+OBJSIZE = $(CROSS_COMPILE)size
+STRIP = $(CROSS_COMPILE)strip
+endif
PAHOLE = pahole
LEX = flex
YACC = bison
GCC_PLUGINS_CFLAGS :=
CLANG_FLAGS :=
-export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
+export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC
export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE LEX YACC AWK INSTALLKERNEL
export PERL PYTHON PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
ifneq ($(GCC_TOOLCHAIN),)
CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
-ifeq ($(shell $(AS) --version 2>&1 | head -n 1 | grep clang),)
+ifneq ($(LLVM_IAS),1)
CLANG_FLAGS += -no-integrated-as
endif
CLANG_FLAGS += -Werror=unknown-warning-option
#
# This exploits the 'multi-target pattern rule' trick.
# The syncconfig should be executed only once to make all the targets.
+# (Note: use the grouped target '&:' when we bump to GNU Make 4.3)
%/auto.conf %/auto.conf.cmd: $(KCONFIG_CONFIG)
$(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
else # !may-sync-config
# Tell gcc to never replace conditional load with a non-conditional one
KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
+KBUILD_CFLAGS += $(call cc-option,-fno-allow-store-data-races)
include scripts/Makefile.kcov
include scripts/Makefile.gcc-plugins
endif
ifneq ($(CONFIG_FRAME_WARN),0)
-KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
+KBUILD_CFLAGS += -Wframe-larger-than=$(CONFIG_FRAME_WARN)
endif
stackp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector
KBUILD_CPPFLAGS += -Qunused-arguments
KBUILD_CFLAGS += -Wno-format-invalid-specifier
KBUILD_CFLAGS += -Wno-gnu
-# Quiet clang warning: comparison of unsigned expression < 0 is always false
-KBUILD_CFLAGS += -Wno-tautological-compare
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
# source of a reference will be _MergedGlobals and not on of the whitelisted names.
# See modpost pattern 2
core-y := $(patsubst %/, %/built-in.a, $(core-y))
drivers-y := $(patsubst %/, %/built-in.a, $(drivers-y))
net-y := $(patsubst %/, %/built-in.a, $(net-y))
+libs-y2 := $(patsubst %/, %/built-in.a, $(filter %/, $(libs-y)))
+ifdef CONFIG_MODULES
+libs-y1 := $(filter-out %/, $(libs-y))
+libs-y2 += $(patsubst %/, %/lib.a, $(filter %/, $(libs-y)))
+else
libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
-libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y)))
+endif
virt-y := $(patsubst %/, %/built-in.a, $(virt-y))
# Externally visible symbols (used by link-vmlinux.sh)
autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h)
+quiet_cmd_autoksyms_h = GEN $@
+ cmd_autoksyms_h = mkdir -p $(dir $@); \
+ $(CONFIG_SHELL) $(srctree)/scripts/gen_autoksyms.sh $@
+
$(autoksyms_h):
- $(Q)mkdir -p $(dir $@)
- $(Q)touch $@
+ $(call cmd,autoksyms_h)
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
PHONY += dtbs dtbs_install dtbs_check
-dtbs dtbs_check: include/config/kernel.release scripts_dtc
+dtbs: include/config/kernel.release scripts_dtc
$(Q)$(MAKE) $(build)=$(dtstree)
-dtbs_check: export CHECK_DTBS=1
-dtbs_check: dt_binding_check
+ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),)
+export CHECK_DTBS=y
+dtbs: dt_binding_check
+endif
+
+dtbs_check: dtbs
dtbs_install:
- $(Q)$(MAKE) $(dtbinst)=$(dtstree)
+ $(Q)$(MAKE) $(dtbinst)=$(dtstree) dst=$(INSTALL_DTBS_PATH)
ifdef CONFIG_OF_EARLY_FLATTREE
all: dtbs
scripts_dtc: scripts_basic
$(Q)$(MAKE) $(build)=scripts/dtc
+ifneq ($(filter dt_binding_check, $(MAKECMDGOALS)),)
+export CHECK_DT_BINDING=y
+endif
+
PHONY += dt_binding_check
dt_binding_check: scripts_dtc
$(Q)$(MAKE) $(build)=Documentation/devicetree/bindings
@echo ' nsdeps - Generate missing symbol namespace dependencies'
@echo ''
@echo 'Kernel selftest:'
- @echo ' kselftest - Build and run kernel selftest (run as root)'
- @echo ' Build, install, and boot kernel before'
- @echo ' running kselftest on it'
- @echo ' kselftest-clean - Remove all generated kselftest files'
- @echo ' kselftest-merge - Merge all the config dependencies of kselftest to existing'
- @echo ' .config.'
+ @echo ' kselftest - Build and run kernel selftest'
+ @echo ' Build, install, and boot kernel before'
+ @echo ' running kselftest on it'
+ @echo ' Run as root for full coverage'
+ @echo ' kselftest-all - Build kernel selftest'
+ @echo ' kselftest-install - Build and install kernel selftest'
+ @echo ' kselftest-clean - Remove all generated kselftest files'
+ @echo ' kselftest-merge - Merge all the config dependencies of'
+ @echo ' kselftest to existing .config.'
@echo ''
@$(if $(dtstree), \
echo 'Devicetree:'; \
projects / linux-2.6-microblaze.git / blobdiff