VERSION = 5
PATCHLEVEL = 17
SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION =
NAME = Superb Owl
# *DOCUMENTATION*
HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
ifneq ($(LLVM),)
- HOSTCC = clang
- HOSTCXX = clang++
+ ifneq ($(filter %/,$(LLVM)),)
+ LLVM_PREFIX := $(LLVM)
+ else ifneq ($(filter -%,$(LLVM)),)
+ LLVM_SUFFIX := $(LLVM)
+ endif
+
+ HOSTCC = $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
+ HOSTCXX = $(LLVM_PREFIX)clang++$(LLVM_SUFFIX)
else
HOSTCC = gcc
HOSTCXX = g++
endif
- export KBUILD_USERCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
- -O2 -fomit-frame-pointer -std=gnu11 \
- -Wdeclaration-after-statement
- export KBUILD_USERLDFLAGS :=
+ KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
- -O2 -fomit-frame-pointer -std=gnu89
++ -O2 -fomit-frame-pointer -std=gnu11 \
++ -Wdeclaration-after-statement
+ KBUILD_USERCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS)
+ KBUILD_USERLDFLAGS := $(USERLDFLAGS)
- KBUILD_HOSTCFLAGS := $(KBUILD_USERCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
+ KBUILD_HOSTCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
# Make variables (CC, etc...)
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
- STRIP = llvm-strip
+ 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
-fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
-Werror=implicit-function-declaration -Werror=implicit-int \
-Werror=return-type -Wno-format-security \
- -std=gnu89
+ -std=gnu11
KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_AFLAGS_KERNEL :=
KBUILD_CFLAGS_KERNEL :=
export PERL PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
+ export KBUILD_USERCFLAGS KBUILD_USERLDFLAGS
export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
ifdef CONFIG_CC_IS_CLANG
KBUILD_CPPFLAGS += -Qunused-arguments
-# The kernel builds with '-std=gnu89' so use of GNU extensions is acceptable.
+# The kernel builds with '-std=gnu11' so use of GNU extensions is acceptable.
KBUILD_CFLAGS += -Wno-gnu
# 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.
KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
# We'll want to enable this eventually, but it's not going away for 5.7 at least
-KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
-KBUILD_CFLAGS += -Wno-array-bounds
KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
# Another good warning that we'll want to enable eventually
echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL)
endef
- $(version_h): PATCHLEVEL := $(if $(PATCHLEVEL), $(PATCHLEVEL), 0)
- $(version_h): SUBLEVEL := $(if $(SUBLEVEL), $(SUBLEVEL), 0)
+ $(version_h): PATCHLEVEL := $(or $(PATCHLEVEL), 0)
+ $(version_h): SUBLEVEL := $(or $(SUBLEVEL), 0)
$(version_h): FORCE
$(call filechk,version.h)
@$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
@echo ''
@echo 'Architecture specific targets ($(SRCARCH)):'
- @$(if $(archhelp),$(archhelp),\
+ @$(or $(archhelp),\
echo ' No architecture specific help defined for $(SRCARCH)')
@echo ''
@$(if $(boards), \
clean: $(clean-dirs)
$(call cmd,rmfiles)
- @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
+ @find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
\( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '*.ko.*' \
-o -name '*.dtb' -o -name '*.dtbo' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
uapi := arch/$(SRCARCH)/include/generated/uapi/asm
# Create output directory if not already present
- _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)') \
- $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')
+ $(shell mkdir -p $(out) $(uapi))
syscall32 := $(src)/syscall_32.tbl
syscall64 := $(src)/syscall_64.tbl
syshdr-y += syscalls_32.h
syshdr-$(CONFIG_X86_64) += unistd_32_ia32.h unistd_64_x32.h
syshdr-$(CONFIG_X86_64) += syscalls_64.h
-syshdr-$(CONFIG_X86_X32) += syscalls_x32.h
+syshdr-$(CONFIG_X86_X32_ABI) += syscalls_x32.h
syshdr-$(CONFIG_XEN) += xen-hypercalls.h
uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y))
config CC_CAN_LINK
bool
- default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT
- default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag))
+ default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag)) if 64BIT
+ default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag))
config CC_CAN_LINK_STATIC
bool
- default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT
- default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static)
+ default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag) -static) if 64BIT
+ default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag) -static)
config CC_HAS_ASM_GOTO
def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
config CC_HAS_NO_PROFILE_FN_ATTR
def_bool $(success,echo '__attribute__((no_profile_instrument_function)) int x();' | $(CC) -x c - -c -o /dev/null -Werror)
+config PAHOLE_VERSION
+ int
+ default $(shell,$(srctree)/scripts/pahole-version.sh $(PAHOLE))
+
config CONSTRUCTORS
bool
config RT_MUTEXES
bool
+ default y if PREEMPT_RT
config BASE_SMALL
int
# The filename Kbuild has precedence over Makefile
kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
- kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
- include $(kbuild-file)
+ include $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile)
include $(srctree)/scripts/Makefile.lib
targets-for-modules := $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))
-ifdef CONFIG_LTO_CLANG
-targets-for-modules += $(patsubst %.o, %.lto.o, $(filter %.o, $(obj-m)))
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
+targets-for-modules += $(patsubst %.o, %.prelink.o, $(filter %.o, $(obj-m)))
endif
ifdef need-modorder
objtool_args = \
$(if $(CONFIG_UNWINDER_ORC),orc generate,check) \
$(if $(part-of-module), --module) \
+ $(if $(CONFIG_X86_KERNEL_IBT), --lto --ibt) \
$(if $(CONFIG_FRAME_POINTER),, --no-fp) \
$(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), --no-unreachable)\
$(if $(CONFIG_RETPOLINE), --retpoline) \
endif # CONFIG_STACK_VALIDATION
-ifdef CONFIG_LTO_CLANG
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
# Skip objtool for LLVM bitcode
$(obj)/%.o: objtool-enabled :=
$(call if_changed_rule,cc_o_c)
$(call cmd,force_checksrc)
-ifdef CONFIG_LTO_CLANG
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
# Module .o files may contain LLVM bitcode, compile them into native code
# before ELF processing
-quiet_cmd_cc_lto_link_modules = LTO [M] $@
-cmd_cc_lto_link_modules = \
+quiet_cmd_cc_prelink_modules = LD [M] $@
+ cmd_cc_prelink_modules = \
$(LD) $(ld_flags) -r -o $@ \
- $(shell [ -s $(@:.lto.o=.o.symversions) ] && \
- echo -T $(@:.lto.o=.o.symversions)) \
+ $(shell [ -s $(@:.prelink.o=.o.symversions) ] && \
+ echo -T $(@:.prelink.o=.o.symversions)) \
--whole-archive $(filter-out FORCE,$^) \
$(cmd_objtool)
# objtool was skipped for LLVM bitcode, run it now that we have compiled
# modules into native code
-$(obj)/%.lto.o: objtool-enabled = y
-$(obj)/%.lto.o: part-of-module := y
+$(obj)/%.prelink.o: objtool-enabled = y
+$(obj)/%.prelink.o: part-of-module := y
-$(obj)/%.lto.o: $(obj)/%.o FORCE
- $(call if_changed,cc_lto_link_modules)
+$(obj)/%.prelink.o: $(obj)/%.o FORCE
+ $(call if_changed,cc_prelink_modules)
endif
cmd_mod = { \
# Do not replace $(filter %.o,^) with $(real-prereqs). When a single object
# module is turned into a multi object module, $^ will contain header file
# dependencies recorded in the .*.cmd file.
-ifdef CONFIG_LTO_CLANG
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
quiet_cmd_link_multi-m = AR [M] $@
cmd_link_multi-m = \
$(cmd_update_lto_symversions); \
always-y += $(dtb-y)
-ifneq ($(CHECK_DTBS),)
-always-y += $(patsubst %.dtb,%.dt.yaml, $(real-dtb-y))
-always-y += $(patsubst %.dtbo,%.dt.yaml, $(real-dtb-y))
-endif
-
# Add subdir path
extra-y := $(addprefix $(obj)/,$(extra-y))
modname-multi = $(sort $(foreach m,$(multi-obj-ym),\
$(if $(filter $*.o, $(call suffix-search, $m, .o, -objs -y -m)),$(m:.o=))))
- __modname = $(if $(modname-multi),$(modname-multi),$(basetarget))
+ __modname = $(or $(modname-multi),$(basetarget))
modname = $(subst $(space),:,$(__modname))
modfile = $(addprefix $(obj)/,$(__modname))
$(addprefix -I,$(DTC_INCLUDE)) \
-undef -D__DTS__
-ifeq ($(CONFIG_LTO_CLANG),y)
+ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
# With CONFIG_LTO_CLANG, .o files in modules might be LLVM bitcode, so we
# need to run LTO to compile them into native code (.lto.o) before further
# processing.
-mod-prelink-ext := .lto
+mod-prelink-ext := .prelink
endif
# Useful for describing the dependency of composite objects
$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
endef
- quiet_cmd_copy = COPY $@
- cmd_copy = cp $< $@
-
- # Shipped files
+ # Copy a file
# ===========================================================================
# 'cp' preserves permissions. If you use it to copy a file in read-only srctree,
# the copy would be read-only as well, leading to an error when executing the
# rule next time. Use 'cat' instead in order to generate a writable file.
-
- quiet_cmd_shipped = SHIPPED $@
- cmd_shipped = cat $< > $@
+ quiet_cmd_copy = COPY $@
+ cmd_copy = cat $< > $@
$(obj)/%: $(src)/%_shipped
- $(call cmd,shipped)
+ $(call cmd,copy)
# Commands useful for building a boot image
# ===========================================================================
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
-$(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
- $(call if_changed_dep,dtc)
-
-$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
- $(call if_changed_dep,dtc)
-
quiet_cmd_fdtoverlay = DTOVL $@
cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs)
$(call if_changed,fdtoverlay)
$(call multi_depend, $(multi-dtb-y), .dtb, -dtbs)
+ifneq ($(CHECK_DTBS)$(CHECK_DT_BINDING),)
DT_CHECKER ?= dt-validate
-DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),,-m)
+DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
DT_BINDING_DIR := Documentation/devicetree/bindings
-# DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile
-DT_TMP_SCHEMA ?= $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
+DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
quiet_cmd_dtb_check = CHECK $@
- cmd_dtb_check = $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@
+ cmd_dtb_check = $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true
+endif
define rule_dtc
$(call cmd_and_fixdep,dtc)
$(call cmd,dtb_check)
endef
-$(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
+$(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
$(call if_changed_rule,dtc)
+$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
+ $(call if_changed_dep,dtc)
+
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
# Bzip2
# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
# the number of overrides in arch makefiles
UIMAGE_ARCH ?= $(SRCARCH)
- UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
+ UIMAGE_COMPRESSION ?= $(or $(2),none)
UIMAGE_OPTS-y ?=
UIMAGE_TYPE ?= kernel
UIMAGE_LOADADDR ?= arch_must_set_this
ifneq ($(OUTPUT),)
_OUTPUT := $(OUTPUT)
else
- _OUTPUT := $(CURDIR)
+ _OUTPUT := $(CURDIR)/
endif
-BOOTSTRAP_OUTPUT := $(_OUTPUT)/bootstrap/
+BOOTSTRAP_OUTPUT := $(_OUTPUT)bootstrap/
-LIBBPF_OUTPUT := $(_OUTPUT)/libbpf/
+LIBBPF_OUTPUT := $(_OUTPUT)libbpf/
LIBBPF_DESTDIR := $(LIBBPF_OUTPUT)
-LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)/include
+LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include
LIBBPF_HDRS_DIR := $(LIBBPF_INCLUDE)/bpf
LIBBPF := $(LIBBPF_OUTPUT)libbpf.a
LIBBPF_BOOTSTRAP_OUTPUT := $(BOOTSTRAP_OUTPUT)libbpf/
LIBBPF_BOOTSTRAP_DESTDIR := $(LIBBPF_BOOTSTRAP_OUTPUT)
-LIBBPF_BOOTSTRAP_INCLUDE := $(LIBBPF_BOOTSTRAP_DESTDIR)/include
+LIBBPF_BOOTSTRAP_INCLUDE := $(LIBBPF_BOOTSTRAP_DESTDIR)include
LIBBPF_BOOTSTRAP_HDRS_DIR := $(LIBBPF_BOOTSTRAP_INCLUDE)/bpf
LIBBPF_BOOTSTRAP := $(LIBBPF_BOOTSTRAP_OUTPUT)libbpf.a
-# We need to copy hashmap.h and nlattr.h which is not otherwise exported by
-# libbpf, but still required by bpftool.
-LIBBPF_INTERNAL_HDRS := $(addprefix $(LIBBPF_HDRS_DIR)/,hashmap.h nlattr.h)
-LIBBPF_BOOTSTRAP_INTERNAL_HDRS := $(addprefix $(LIBBPF_BOOTSTRAP_HDRS_DIR)/,hashmap.h)
-
-ifeq ($(BPFTOOL_VERSION),)
-BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
-endif
+# We need to copy hashmap.h, nlattr.h, relo_core.h and libbpf_internal.h
+# which are not otherwise exported by libbpf, but still required by bpftool.
+LIBBPF_INTERNAL_HDRS := $(addprefix $(LIBBPF_HDRS_DIR)/,hashmap.h nlattr.h relo_core.h libbpf_internal.h)
+LIBBPF_BOOTSTRAP_INTERNAL_HDRS := $(addprefix $(LIBBPF_BOOTSTRAP_HDRS_DIR)/,hashmap.h relo_core.h libbpf_internal.h)
$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR) $(LIBBPF_BOOTSTRAP_HDRS_DIR):
$(QUIET_MKDIR)mkdir -p $@
$(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \
- DESTDIR=$(LIBBPF_DESTDIR) prefix= $(LIBBPF) install_headers
+ DESTDIR=$(LIBBPF_DESTDIR:/=) prefix= $(LIBBPF) install_headers
$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR)
$(call QUIET_INSTALL, $@)
$(LIBBPF_BOOTSTRAP): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_BOOTSTRAP_OUTPUT)
$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_BOOTSTRAP_OUTPUT) \
- DESTDIR=$(LIBBPF_BOOTSTRAP_DESTDIR) prefix= \
+ DESTDIR=$(LIBBPF_BOOTSTRAP_DESTDIR:/=) prefix= \
ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) $@ install_headers
$(LIBBPF_BOOTSTRAP_INTERNAL_HDRS): $(LIBBPF_BOOTSTRAP_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_BOOTSTRAP_HDRS_DIR)
CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
CFLAGS += $(filter-out -Wswitch-enum -Wnested-externs,$(EXTRA_WARNINGS))
CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
- -I$(if $(OUTPUT),$(OUTPUT),.) \
+ -I$(or $(OUTPUT),.) \
-I$(LIBBPF_INCLUDE) \
-I$(srctree)/kernel/bpf/ \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi
+ifneq ($(BPFTOOL_VERSION),)
CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
+endif
ifneq ($(EXTRA_CFLAGS),)
CFLAGS += $(EXTRA_CFLAGS)
endif
RM ?= rm -f
FEATURE_USER = .bpftool
-FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \
+FEATURE_TESTS = libbfd disassembler-four-args zlib libcap \
clang-bpf-co-re
FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \
clang-bpf-co-re
CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
endif
-ifeq ($(feature-reallocarray), 0)
-CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
-endif
-
LIBS = $(LIBBPF) -lelf -lz
LIBS_BOOTSTRAP = $(LIBBPF_BOOTSTRAP) -lelf -lz
ifeq ($(feature-libcap), 1)
$(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF_BOOTSTRAP)
$(QUIET_CLANG)$(CLANG) \
- -I$(if $(OUTPUT),$(OUTPUT),.) \
+ -I$(or $(OUTPUT),.) \
-I$(srctree)/tools/include/uapi/ \
-I$(LIBBPF_BOOTSTRAP_INCLUDE) \
-g -O2 -Wall -target bpf -c $< -o $@
VERBOSE = 0
endif
- INCLUDES = -I$(if $(OUTPUT),$(OUTPUT),.) \
+ INCLUDES = -I$(or $(OUTPUT),.) \
-I$(srctree)/tools/include -I$(srctree)/tools/include/uapi
export prefix libdir src obj
sort -u | wc -l)
VERSIONED_SYM_COUNT = $(shell readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \
sed 's/\[.*\]//' | \
- awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \
+ awk '/GLOBAL/ && /DEFAULT/ && !/UND|ABS/ {print $$NF}' | \
grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | sort -u | wc -l)
CMD_TARGETS = $(LIB_TARGET) $(PC_FILE)
sort -u > $(OUTPUT)libbpf_global_syms.tmp; \
readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \
sed 's/\[.*\]//' | \
- awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'| \
+ awk '/GLOBAL/ && /DEFAULT/ && !/UND|ABS/ {print $$NF}'| \
grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | \
sort -u > $(OUTPUT)libbpf_versioned_syms.tmp; \
diff -u $(OUTPUT)libbpf_global_syms.tmp \
$(SCRIPTS) : % : %.sh
-$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
+$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD ../../.git/ORIG_HEAD
$(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
$(Q)touch $(OUTPUT)PERF-VERSION-FILE
# get relative building directory (to $(OUTPUT))
# and '.' if it's $(OUTPUT) itself
__build-dir = $(subst $(OUTPUT),,$(dir $@))
- build-dir = $(if $(__build-dir),$(__build-dir),.)
+ build-dir = $(or $(__build-dir),.)
prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioctl_array) \
$(fadvise_advice_array) \
clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean fixdep-clean python-clean bpf-skel-clean
$(call QUIET_CLEAN, core-objs) $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf-iostat $(LANG_BINDINGS)
- $(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
+ $(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
$(Q)$(RM) $(OUTPUT).config-detected
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32 $(OUTPUT)pmu-events/jevents $(OUTPUT)$(LIBJVMTI).so
$(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
# then force version regeneration:
#
ifeq ($(wildcard ../../.git/HEAD),)
- GIT-HEAD-PHONY = ../../.git/HEAD
+ GIT-HEAD-PHONY = ../../.git/HEAD ../../.git/ORIG_HEAD
else
GIT-HEAD-PHONY =
endif
# Do not use make's built-in rules
# (this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r
-
-override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
+override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include -I/usr/include/libnl3
+override LDFLAGS += -lnl-genl-3 -lnl-3
ALL_TARGETS := intel-speed-select
ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
mkdir -p $(OUTPUT)include/linux 2>&1 || true
ln -sf $(CURDIR)/../../../../include/uapi/linux/isst_if.h $@
-prepare: $(OUTPUT)include/linux/isst_if.h
+$(OUTPUT)include/linux/thermal.h: ../../../../include/uapi/linux/thermal.h
+ mkdir -p $(OUTPUT)include/linux 2>&1 || true
+ ln -sf $(CURDIR)/../../../../include/uapi/linux/thermal.h $@
+
+prepare: $(OUTPUT)include/linux/isst_if.h $(OUTPUT)include/linux/thermal.h
ISST_IN := $(OUTPUT)intel-speed-select-in.o
clean:
rm -f $(ALL_PROGRAMS)
rm -rf $(OUTPUT)include/linux/isst_if.h
- find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+ find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
install: $(ALL_PROGRAMS)
install -d -m 755 $(DESTDIR)$(bindir); \
endef
ifneq ($(LLVM),)
- $(call allow-override,CC,clang)
- $(call allow-override,AR,llvm-ar)
- $(call allow-override,LD,ld.lld)
- $(call allow-override,CXX,clang++)
- $(call allow-override,STRIP,llvm-strip)
+ ifneq ($(filter %/,$(LLVM)),)
+ LLVM_PREFIX := $(LLVM)
+ else ifneq ($(filter -%,$(LLVM)),)
+ LLVM_SUFFIX := $(LLVM)
+ endif
+
+ $(call allow-override,CC,$(LLVM_PREFIX)clang$(LLVM_SUFFIX))
+ $(call allow-override,AR,$(LLVM_PREFIX)llvm-ar$(LLVM_SUFFIX))
+ $(call allow-override,LD,$(LLVM_PREFIX)ld.lld$(LLVM_SUFFIX))
+ $(call allow-override,CXX,$(LLVM_PREFIX)clang++$(LLVM_SUFFIX))
+ $(call allow-override,STRIP,$(LLVM_PREFIX)llvm-strip$(LLVM_SUFFIX))
else
# Allow setting various cross-compile vars or setting CROSS_COMPILE as a prefix.
$(call allow-override,CC,$(CROSS_COMPILE)gcc)
CC_NO_CLANG := $(shell $(CC) -dM -E -x c /dev/null | grep -Fq "__clang__"; echo $$?)
ifneq ($(LLVM),)
- HOSTAR ?= llvm-ar
- HOSTCC ?= clang
- HOSTLD ?= ld.lld
+ HOSTAR ?= $(LLVM_PREFIX)llvm-ar$(LLVM_SUFFIX)
+ HOSTCC ?= $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
+ HOSTLD ?= $(LLVM_PREFIX)ld.lld$(LLVM_SUFFIX)
else
HOSTAR ?= ar
HOSTCC ?= gcc
EXTRA_WARNINGS += -Wstrict-aliasing=3
else ifneq ($(CROSS_COMPILE),)
+# Allow userspace to override CLANG_CROSS_FLAGS to specify their own
+# sysroots and flags or to avoid the GCC call in pure Clang builds.
+ifeq ($(CLANG_CROSS_FLAGS),)
CLANG_CROSS_FLAGS := --target=$(notdir $(CROSS_COMPILE:%-=%))
GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)gcc 2>/dev/null))
ifneq ($(GCC_TOOLCHAIN_DIR),)
CLANG_CROSS_FLAGS += --sysroot=$(shell $(CROSS_COMPILE)gcc -print-sysroot)
CLANG_CROSS_FLAGS += --gcc-toolchain=$(realpath $(GCC_TOOLCHAIN_DIR)/..)
endif # GCC_TOOLCHAIN_DIR
+endif # CLANG_CROSS_FLAGS
CFLAGS += $(CLANG_CROSS_FLAGS)
AFLAGS += $(CLANG_CROSS_FLAGS)
endif # CROSS_COMPILE
# In theory, we do not care -m32 or -m64 for header compile tests.
# It is here just because CONFIG_CC_CAN_LINK is tested with -m32 or -m64.
- UAPI_CFLAGS += $(filter -m32 -m64, $(KBUILD_CFLAGS))
+ UAPI_CFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CFLAGS))
+
+ # USERCFLAGS might contain sysroot location for CC.
+ UAPI_CFLAGS += $(USERCFLAGS)
override c_flags = $(UAPI_CFLAGS) -Wp,-MMD,$(depfile) -I$(objtree)/usr/include
# Please consider to fix the header first.
#
# Sorted alphabetically.
-no-header-test += asm/shmbuf.h
-no-header-test += asm/signal.h
no-header-test += asm/ucontext.h
no-header-test += drm/vmwgfx_drm.h
no-header-test += linux/am437x-vpfe.h
-no-header-test += linux/android/binder.h
-no-header-test += linux/android/binderfs.h
no-header-test += linux/coda.h
no-header-test += linux/cyclades.h
no-header-test += linux/errqueue.h
-no-header-test += linux/fsmap.h
no-header-test += linux/hdlc/ioctl.h
no-header-test += linux/ivtv.h
-no-header-test += linux/kexec.h
no-header-test += linux/matroxfb.h
no-header-test += linux/omap3isp.h
no-header-test += linux/omapfb.h
no-header-test += linux/patchkey.h
no-header-test += linux/phonet.h
-no-header-test += linux/reiserfs_xattr.h
no-header-test += linux/sctp.h
-no-header-test += linux/signal.h
no-header-test += linux/sysctl.h
no-header-test += linux/usb/audio.h
no-header-test += linux/v4l2-mediabus.h
# asm-generic/*.h is used by asm/*.h, and should not be included directly
no-header-test += asm-generic/%
- extra-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
+ always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
# Include the header twice to detect missing include guard.
quiet_cmd_hdrtest = HDRTEST $<
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