# SPDX-License-Identifier: GPL-2.0-only ifeq ($(src-perf),)src-perf := $(srctree)/tools/perfendif ifeq ($(obj-perf),)obj-perf := $(OUTPUT)endif ifneq ($(obj-perf),)obj-perf := $(abspath $(obj-perf))/endif $(shell printf "" > $(OUTPUT).config-detected)detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected) CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS)) # This is required because the kernel is built with this and some of the code# borrowed from kernel headers depends on it, e.g. put_unaligned_*().CFLAGS += -fno-strict-aliasing # Set target flag and options when using clang as compiler.ifeq ($(CC_NO_CLANG), 0) CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu CLANG_TARGET_FLAGS_loongarch := loongarch64-linux-gnu CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu # Default to host architecture if ARCH is not explicitly given. ifeq ($(ARCH), $(HOSTARCH)) CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-target-triple) else CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH)) endif ifeq ($(CROSS_COMPILE),) ifeq ($(CLANG_TARGET_FLAGS),) $(error Specify CROSS_COMPILE or add CLANG_TARGET_FLAGS for $(ARCH)) else CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) endif # CLANG_TARGET_FLAGS else CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) endif # CROSS_COMPILE CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as CXX := $(CXX) $(CLANG_FLAGS) -fintegrated-as # Enabled Wthread-safety analysis for clang builds. CFLAGS += -Wthread-safetyendif include $(srctree)/tools/scripts/Makefile.arch $(call detected_var,SRCARCH) CFLAGS += -I$(OUTPUT)arch/$(SRCARCH)/include/generated # Additional ARCH settings for x86ifeq ($(SRCARCH),x86) $(call detected,CONFIG_X86) ifeq (${IS_64_BIT}, 1) CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S $(call detected,CONFIG_X86_64) endifendif ifeq ($(ARCH),s390) CFLAGS += -fPIC CXXFLAGS += -fPICendif # Unconditionally set up the libunwind feature build flags as a# feature-dump build doesn't specify LIBUNWIND=1. This means that# dumping the libunwind features will be broken that can impact later# builds that use the feature dump.ifeq ($(SRCARCH),arm) LIBUNWIND_LIBS = -lunwind -lunwind-armendififeq ($(SRCARCH),arm64) LIBUNWIND_LIBS = -lunwind -lunwind-aarch64endififeq ($(SRCARCH),loongarch) LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64endififeq ($(ARCH),mips) LIBUNWIND_LIBS = -lunwind -lunwind-mipsendififeq ($(SRCARCH),powerpc) LIBUNWIND_LIBS := -lunwind -lunwind-ppc64endififeq ($(SRCARCH),riscv) LIBUNWIND_LIBS := -lunwind -lunwind-riscvendififeq ($(SRCARCH),s390) LIBUNWIND_LIBS := -lunwind -lunwind-s390xendififeq ($(SRCARCH),x86) ifeq (${IS_64_BIT}, 1) LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma else LIBUNWIND_LIBS = -lunwind-x86 -lunwind -llzma endifendififneq ($(LIBUNWIND),1) NO_LIBUNWIND := 1endififeq ($(LIBUNWIND_LIBS),) NO_LIBUNWIND := 1endif ## For linking with debug library, run like:## make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/#LIBUNWIND_ARCHS:=aarch64 arm loongarch64 mips ppc32 ppc64 riscv s390x x86 x86_64 # "Local" (no arch specified) feature test flags.FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS) # Add directory into the "remote" (build for a a specific arch) feature tests.ifdef LIBUNWIND_DIR LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib define libunwind_arch_set_flags FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib -lunwind -lunwind-$(1) endef $(foreach arch,$(LIBUNWIND_ARCHS), \ $(eval $(call libunwind_arch_set_flags,$(arch))) \ )endif ifdef CSINCLUDES LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)endifOPENCSDLIBS := -lopencsd_c_api -lopencsdifeq ($(findstring -static,${LDFLAGS}),-static) OPENCSDLIBS += -lstdc++endififdef CSLIBS LIBOPENCSD_LDFLAGS := -L$(CSLIBS)endifFEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS) # for linking with debug library, run like:# make DEBUG=1 LIBDW_DIR=/opt/libdw/ifdef LIBDW_DIR LIBDW_CFLAGS := -I$(LIBDW_DIR)/include LIBDW_LDFLAGS := -L$(LIBDW_DIR)/libendifDWARFLIBS := -ldwifeq ($(findstring -static,${LDFLAGS}),-static) DWARFLIBS += -lelf -lz -llzma -lbz2 LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0 LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION))) LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION))) # Elfutils merged libebl.a into libdw.a starting from version 0.177, # Link libebl.a only if libdw is older than this version. ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0) DWARFLIBS += -lebl endif # Must put -ldl after -lebl for dependency DWARFLIBS += -ldlendifFEATURE_CHECK_CFLAGS-libdw := $(LIBDW_CFLAGS)FEATURE_CHECK_LDFLAGS-libdw := $(LIBDW_LDFLAGS) $(DWARFLIBS) ifneq ($(NO_BABELTRACE2),1) ifeq ($(call get-executable,$(PKG_CONFIG)),) $(error Error: $(PKG_CONFIG) needed by babeltrace2 is missing on this system, please install it) endifendif # for linking with debug library, run like:# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/ifdef LIBCAPSTONE_DIR LIBCAPSTONE_CFLAGS := -I$(LIBCAPSTONE_DIR)/include LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/endifFEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone ifdef LIBZSTD_DIR LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/libendifFEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS) # for linking with debug library, run like:# make DEBUG=1 PKG_CONFIG_PATH=/opt/libtraceevent/(lib|lib64)/pkgconfig ifneq ($(NO_LIBTRACEEVENT),1) ifeq ($(call get-executable,$(PKG_CONFIG)),) $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it) endifendif FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi# include ARCH specific config-include $(src-perf)/arch/$(SRCARCH)/Makefile include $(srctree)/tools/scripts/utilities.mak ifeq ($(call get-executable,$(FLEX)),) $(error Error: $(FLEX) is missing on this system, please install it)endif ifeq ($(call get-executable,$(BISON)),) $(error Error: $(BISON) is missing on this system, please install it)endif ifneq ($(OUTPUT),) ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1) BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)= endifendif # Treat warnings as errors unless directed not toifneq ($(WERROR),0) CORE_CFLAGS += -Werror CXXFLAGS += -Werror HOSTCFLAGS += -Werrorendif ifndef DEBUG DEBUG := 0endif ifeq ($(DEBUG),0)CORE_CFLAGS += -DNDEBUG=1CORE_CFLAGS += -O3else CORE_CFLAGS += -g CXXFLAGS += -gendif ifdef PARSER_DEBUG PARSER_DEBUG_BISON := -t PARSER_DEBUG_FLEX := -d CFLAGS += -DPARSER_DEBUG $(call detected_var,PARSER_DEBUG_BISON) $(call detected_var,PARSER_DEBUG_FLEX)endif ifdef LTO CORE_CFLAGS += -flto CXXFLAGS += -fltoendif # Try different combinations to accommodate systems that only have# python[2][3]-config in weird combinations in the following order of# priority from lowest to highest:# * python2-config as per pep-0394.# * python-config# * python3-config# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)#PYTHON_AUTO := python-configPYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO)) # If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.ifdef PYTHON ifndef PYTHON_CONFIG PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config) PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\ $(call $(error $(PYTHON)-config not found))) endifendif # Select either auto detected python and python-config or use user supplied values if they are# defined. get-executable-or-default fails with an error if the first argument is supplied but# doesn't exist.override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG))) grep-libs = $(filter -l%,$(1))strip-libs = $(filter-out -l%,$(1)) PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG)) # Python 3.8 changed the output of `python-config --ldflags` to not include the# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for# libpython fails if that flag is not included in LDFLAGSifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0) PYTHON_CONFIG_LDFLAGS := --ldflags --embedelse PYTHON_CONFIG_LDFLAGS := --ldflagsendif ifdef PYTHON_CONFIG PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null) # Update the python flags for cross compilation ifdef CROSS_COMPILE PYTHON_NATIVE := $(shell echo $(PYTHON_EMBED_LDOPTS) | sed 's/\(-L.*\/\)\(.*-linux-gnu\).*/\2/') PYTHON_EMBED_LDOPTS := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EMBED_LDOPTS)) endif PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null) FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) ifeq ($(CC_NO_CLANG), 0) PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS)) endifendif FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS) FEATURE_CHECK_LDFLAGS-libaio = -lrt CORE_CFLAGS += -fno-omit-frame-pointerCORE_CFLAGS += -WallCORE_CFLAGS += -WextraCORE_CFLAGS += -std=gnu11CORE_CFLAGS += -funsigned-char CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rttiCXXFLAGS += -WallCXXFLAGS += -WextraCXXFLAGS += -fno-omit-frame-pointer HOSTCFLAGS += -WallHOSTCFLAGS += -Wextra # Enforce a non-executable stack, as we may regress (again) in the future by# adding assembler files missing the .GNU-stack linker note.LDFLAGS += -Wl,-z,noexecstack EXTLIBS = -lpthread -lrt -lm -ldl ifneq ($(TCMALLOC),) CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free EXTLIBS += -ltcmallocendif ifeq ($(FEATURES_DUMP),)# We will display at the end of this Makefile.config, using $(call feature_display_entries),# as we may retry some feature detection here. FEATURE_DISPLAY_DEFERRED := 1include $(srctree)/tools/build/Makefile.featureelseinclude $(FEATURES_DUMP)endif ifeq ($(feature-stackprotector-all), 1) CORE_CFLAGS += -fstack-protector-allendif ifeq ($(DEBUG),0) ifeq ($(feature-fortify-source), 1) CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 endifendif INC_FLAGS += -I$(src-perf)/util/includeINC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/includeINC_FLAGS += -I$(srctree)/tools/include/INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapiINC_FLAGS += -I$(srctree)/tools/include/uapiINC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/ # $(obj-perf) for generated common-cmds.h# $(obj-perf)/util for generated bison/flex headersifneq ($(OUTPUT),)INC_FLAGS += -I$(obj-perf)/utilINC_FLAGS += -I$(obj-perf)endif INC_FLAGS += -I$(src-perf)/utilINC_FLAGS += -I$(src-perf) CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)CXXFLAGS += $(INC_FLAGS) LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS) ifeq ($(feature-pthread-attr-setaffinity-np), 1) CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NPendif ifeq ($(feature-pthread-barrier), 1) CFLAGS += -DHAVE_PTHREAD_BARRIERendif ifndef NO_BIONIC $(call feature_check,bionic) ifeq ($(feature-bionic), 1) BIONIC := 1 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE EXTLIBS := $(filter-out -lrt,$(EXTLIBS)) EXTLIBS := $(filter-out -lpthread,$(EXTLIBS)) endifendif ifeq ($(feature-eventfd), 1) CFLAGS += -DHAVE_EVENTFD_SUPPORTendif ifeq ($(feature-gettid), 1) CFLAGS += -DHAVE_GETTIDendif ifeq ($(feature-file-handle), 1) CFLAGS += -DHAVE_FILE_HANDLEendif ifdef NO_LIBELF NO_LIBDW := 1 NO_LIBUNWIND := 1 NO_LIBBPF := 1 NO_JVMTI := 1else ifeq ($(feature-libelf), 0) ifeq ($(feature-glibc), 1) LIBC_SUPPORT := 1 endif ifeq ($(BIONIC),1) LIBC_SUPPORT := 1 endif ifeq ($(LIBC_SUPPORT),1) $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.) else ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),) ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0) $(error No libasan found, please install libasan) endif endif ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),) ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0) $(error No libubsan found, please install libubsan) endif endif ifneq ($(filter s% -static%,$(LDFLAGS),),) $(error No static glibc found, please install glibc-static) else $(error No gnu/libc-version.h found, please install glibc-dev[el]) endif endif else ifneq ($(feature-libdw), 1) ifndef NO_LIBDW $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.157, disables dwarf support. Please install new elfutils-devel/libdw-dev) NO_LIBDW := 1 endif endif # Dwarf support endif # libelf supportendif # NO_LIBELF ifeq ($(feature-libaio), 1) ifndef NO_AIO CFLAGS += -DHAVE_AIO_SUPPORT endifendif ifeq ($(feature-scandirat), 1) # Ignore having scandirat with memory sanitizer that lacks an interceptor. ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),) CFLAGS += -DHAVE_SCANDIRAT_SUPPORT endifendif ifeq ($(feature-sched_getcpu), 1) CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORTendif ifeq ($(feature-setns), 1) CFLAGS += -DHAVE_SETNS_SUPPORT $(call detected,CONFIG_SETNS)endifLines 1–500 of 1310. Load more
# SPDX-License-Identifier: GPL-2.0-only ifeq ($(src-perf),) src-perf := $(srctree)/tools/perf endif ifeq ($(obj-perf),) obj-perf := $(OUTPUT) endif ifneq ($(obj-perf),) obj-perf := $(abspath $(obj-perf))/ endif $(shell printf "" > $(OUTPUT).config-detected) detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected) detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected) CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS)) HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS)) # This is required because the kernel is built with this and some of the code # borrowed from kernel headers depends on it, e.g. put_unaligned_*(). CFLAGS += -fno-strict-aliasing # Set target flag and options when using clang as compiler. ifeq ($(CC_NO_CLANG), 0) CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu CLANG_TARGET_FLAGS_loongarch := loongarch64-linux-gnu CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu # Default to host architecture if ARCH is not explicitly given. ifeq ($(ARCH), $(HOSTARCH)) CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-target-triple) else CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH)) endif ifeq ($(CROSS_COMPILE),) ifeq ($(CLANG_TARGET_FLAGS),) $(error Specify CROSS_COMPILE or add CLANG_TARGET_FLAGS for $(ARCH)) else CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) endif # CLANG_TARGET_FLAGS else CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) endif # CROSS_COMPILE CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as CXX := $(CXX) $(CLANG_FLAGS) -fintegrated-as # Enabled Wthread-safety analysis for clang builds. CFLAGS += -Wthread-safety endif include $(srctree)/tools/scripts/Makefile.arch $(call detected_var,SRCARCH) CFLAGS += -I$(OUTPUT)arch/$(SRCARCH)/include/generated # Additional ARCH settings for x86 ifeq ($(SRCARCH),x86) $(call detected,CONFIG_X86) ifeq (${IS_64_BIT}, 1) CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S $(call detected,CONFIG_X86_64) endif endif ifeq ($(ARCH),s390) CFLAGS += -fPIC CXXFLAGS += -fPIC endif # Unconditionally set up the libunwind feature build flags as a # feature-dump build doesn't specify LIBUNWIND=1. This means that # dumping the libunwind features will be broken that can impact later # builds that use the feature dump. ifeq ($(SRCARCH),arm) LIBUNWIND_LIBS = -lunwind -lunwind-arm endif ifeq ($(SRCARCH),arm64) LIBUNWIND_LIBS = -lunwind -lunwind-aarch64 endif ifeq ($(SRCARCH),loongarch) LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64 endif ifeq ($(ARCH),mips) LIBUNWIND_LIBS = -lunwind -lunwind-mips endif ifeq ($(SRCARCH),powerpc) LIBUNWIND_LIBS := -lunwind -lunwind-ppc64 endif ifeq ($(SRCARCH),riscv) LIBUNWIND_LIBS := -lunwind -lunwind-riscv endif ifeq ($(SRCARCH),s390) LIBUNWIND_LIBS := -lunwind -lunwind-s390x endif ifeq ($(SRCARCH),x86) ifeq (${IS_64_BIT}, 1) LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma else LIBUNWIND_LIBS = -lunwind-x86 -lunwind -llzma endif endif ifneq ($(LIBUNWIND),1) NO_LIBUNWIND := 1 endif ifeq ($(LIBUNWIND_LIBS),) NO_LIBUNWIND := 1 endif # # For linking with debug library, run like: # # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/ # LIBUNWIND_ARCHS:=aarch64 arm loongarch64 mips ppc32 ppc64 riscv s390x x86 x86_64 # "Local" (no arch specified) feature test flags. FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS) FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS) FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS) FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS) # Add directory into the "remote" (build for a a specific arch) feature tests. ifdef LIBUNWIND_DIR LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib define libunwind_arch_set_flags FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib -lunwind -lunwind-$(1) endef $(foreach arch,$(LIBUNWIND_ARCHS), \ $(eval $(call libunwind_arch_set_flags,$(arch))) \ ) endif ifdef CSINCLUDES LIBOPENCSD_CFLAGS := -I$(CSINCLUDES) endif OPENCSDLIBS := -lopencsd_c_api -lopencsd ifeq ($(findstring -static,${LDFLAGS}),-static) OPENCSDLIBS += -lstdc++ endif ifdef CSLIBS LIBOPENCSD_LDFLAGS := -L$(CSLIBS) endif FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS) FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS) # for linking with debug library, run like: # make DEBUG=1 LIBDW_DIR=/opt/libdw/ ifdef LIBDW_DIR LIBDW_CFLAGS := -I$(LIBDW_DIR)/include LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib endif DWARFLIBS := -ldw ifeq ($(findstring -static,${LDFLAGS}),-static) DWARFLIBS += -lelf -lz -llzma -lbz2 LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0 LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION))) LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION))) # Elfutils merged libebl.a into libdw.a starting from version 0.177, # Link libebl.a only if libdw is older than this version. ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0) DWARFLIBS += -lebl endif # Must put -ldl after -lebl for dependency DWARFLIBS += -ldl endif FEATURE_CHECK_CFLAGS-libdw := $(LIBDW_CFLAGS) FEATURE_CHECK_LDFLAGS-libdw := $(LIBDW_LDFLAGS) $(DWARFLIBS) ifneq ($(NO_BABELTRACE2),1) ifeq ($(call get-executable,$(PKG_CONFIG)),) $(error Error: $(PKG_CONFIG) needed by babeltrace2 is missing on this system, please install it) endif endif # for linking with debug library, run like: # make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/ ifdef LIBCAPSTONE_DIR LIBCAPSTONE_CFLAGS := -I$(LIBCAPSTONE_DIR)/include LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/ endif FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS) FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone ifdef LIBZSTD_DIR LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib endif FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS) FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS) # for linking with debug library, run like: # make DEBUG=1 PKG_CONFIG_PATH=/opt/libtraceevent/(lib|lib64)/pkgconfig ifneq ($(NO_LIBTRACEEVENT),1) ifeq ($(call get-executable,$(PKG_CONFIG)),) $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it) endif endif FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi # include ARCH specific config -include $(src-perf)/arch/$(SRCARCH)/Makefile include $(srctree)/tools/scripts/utilities.mak ifeq ($(call get-executable,$(FLEX)),) $(error Error: $(FLEX) is missing on this system, please install it) endif ifeq ($(call get-executable,$(BISON)),) $(error Error: $(BISON) is missing on this system, please install it) endif ifneq ($(OUTPUT),) ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1) BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)= endif endif # Treat warnings as errors unless directed not to ifneq ($(WERROR),0) CORE_CFLAGS += -Werror CXXFLAGS += -Werror HOSTCFLAGS += -Werror endif ifndef DEBUG DEBUG := 0 endif ifeq ($(DEBUG),0) CORE_CFLAGS += -DNDEBUG=1 CORE_CFLAGS += -O3 else CORE_CFLAGS += -g CXXFLAGS += -g endif ifdef PARSER_DEBUG PARSER_DEBUG_BISON := -t PARSER_DEBUG_FLEX := -d CFLAGS += -DPARSER_DEBUG $(call detected_var,PARSER_DEBUG_BISON) $(call detected_var,PARSER_DEBUG_FLEX) endif ifdef LTO CORE_CFLAGS += -flto CXXFLAGS += -flto endif # Try different combinations to accommodate systems that only have # python[2][3]-config in weird combinations in the following order of # priority from lowest to highest: # * python2-config as per pep-0394. # * python-config # * python3-config # * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't) # PYTHON_AUTO := python-config PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO)) PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO)) PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO)) # If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user # supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist. ifdef PYTHON ifndef PYTHON_CONFIG PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config) PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\ $(call $(error $(PYTHON)-config not found))) endif endif # Select either auto detected python and python-config or use user supplied values if they are # defined. get-executable-or-default fails with an error if the first argument is supplied but # doesn't exist. override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO)) override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG))) grep-libs = $(filter -l%,$(1)) strip-libs = $(filter-out -l%,$(1)) PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG)) # Python 3.8 changed the output of `python-config --ldflags` to not include the # '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for # libpython fails if that flag is not included in LDFLAGS ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0) PYTHON_CONFIG_LDFLAGS := --ldflags --embed else PYTHON_CONFIG_LDFLAGS := --ldflags endif ifdef PYTHON_CONFIG PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null) # Update the python flags for cross compilation ifdef CROSS_COMPILE PYTHON_NATIVE := $(shell echo $(PYTHON_EMBED_LDOPTS) | sed 's/\(-L.*\/\)\(.*-linux-gnu\).*/\2/') PYTHON_EMBED_LDOPTS := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EMBED_LDOPTS)) endif PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null) FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) ifeq ($(CC_NO_CLANG), 0) PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS)) endif endif FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS) FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS) FEATURE_CHECK_LDFLAGS-libaio = -lrt CORE_CFLAGS += -fno-omit-frame-pointer CORE_CFLAGS += -Wall CORE_CFLAGS += -Wextra CORE_CFLAGS += -std=gnu11 CORE_CFLAGS += -funsigned-char CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti CXXFLAGS += -Wall CXXFLAGS += -Wextra CXXFLAGS += -fno-omit-frame-pointer HOSTCFLAGS += -Wall HOSTCFLAGS += -Wextra # Enforce a non-executable stack, as we may regress (again) in the future by # adding assembler files missing the .GNU-stack linker note. LDFLAGS += -Wl,-z,noexecstack EXTLIBS = -lpthread -lrt -lm -ldl ifneq ($(TCMALLOC),) CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free EXTLIBS += -ltcmalloc endif ifeq ($(FEATURES_DUMP),) # We will display at the end of this Makefile.config, using $(call feature_display_entries), # as we may retry some feature detection here. FEATURE_DISPLAY_DEFERRED := 1 include $(srctree)/tools/build/Makefile.feature else include $(FEATURES_DUMP) endif ifeq ($(feature-stackprotector-all), 1) CORE_CFLAGS += -fstack-protector-all endif ifeq ($(DEBUG),0) ifeq ($(feature-fortify-source), 1) CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 endif endif INC_FLAGS += -I$(src-perf)/util/include INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include INC_FLAGS += -I$(srctree)/tools/include/ INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi INC_FLAGS += -I$(srctree)/tools/include/uapi INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/ INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/ # $(obj-perf) for generated common-cmds.h # $(obj-perf)/util for generated bison/flex headers ifneq ($(OUTPUT),) INC_FLAGS += -I$(obj-perf)/util INC_FLAGS += -I$(obj-perf) endif INC_FLAGS += -I$(src-perf)/util INC_FLAGS += -I$(src-perf) CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS) CXXFLAGS += $(INC_FLAGS) LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS) ifeq ($(feature-pthread-attr-setaffinity-np), 1) CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP endif ifeq ($(feature-pthread-barrier), 1) CFLAGS += -DHAVE_PTHREAD_BARRIER endif ifndef NO_BIONIC $(call feature_check,bionic) ifeq ($(feature-bionic), 1) BIONIC := 1 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE EXTLIBS := $(filter-out -lrt,$(EXTLIBS)) EXTLIBS := $(filter-out -lpthread,$(EXTLIBS)) endif endif ifeq ($(feature-eventfd), 1) CFLAGS += -DHAVE_EVENTFD_SUPPORT endif ifeq ($(feature-gettid), 1) CFLAGS += -DHAVE_GETTID endif ifeq ($(feature-file-handle), 1) CFLAGS += -DHAVE_FILE_HANDLE endif ifdef NO_LIBELF NO_LIBDW := 1 NO_LIBUNWIND := 1 NO_LIBBPF := 1 NO_JVMTI := 1 else ifeq ($(feature-libelf), 0) ifeq ($(feature-glibc), 1) LIBC_SUPPORT := 1 endif ifeq ($(BIONIC),1) LIBC_SUPPORT := 1 endif ifeq ($(LIBC_SUPPORT),1) $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.) else ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),) ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0) $(error No libasan found, please install libasan) endif endif ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),) ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0) $(error No libubsan found, please install libubsan) endif endif ifneq ($(filter s% -static%,$(LDFLAGS),),) $(error No static glibc found, please install glibc-static) else $(error No gnu/libc-version.h found, please install glibc-dev[el]) endif endif else ifneq ($(feature-libdw), 1) ifndef NO_LIBDW $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.157, disables dwarf support. Please install new elfutils-devel/libdw-dev) NO_LIBDW := 1 endif endif # Dwarf support endif # libelf support endif # NO_LIBELF ifeq ($(feature-libaio), 1) ifndef NO_AIO CFLAGS += -DHAVE_AIO_SUPPORT endif endif ifeq ($(feature-scandirat), 1) # Ignore having scandirat with memory sanitizer that lacks an interceptor. ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),) CFLAGS += -DHAVE_SCANDIRAT_SUPPORT endif endif ifeq ($(feature-sched_getcpu), 1) CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT endif ifeq ($(feature-setns), 1) CFLAGS += -DHAVE_SETNS_SUPPORT $(call detected,CONFIG_SETNS) endif