# SPDX-License-Identifier: GPL-2.0include ../scripts/Makefile.includeinclude ../scripts/Makefile.arch ifeq ($(SRCARCH),x86)	BUILD_ORC    := y	ARCH_HAS_KLP := yendif ifeq ($(SRCARCH),loongarch)	BUILD_ORC	   := yendif ifeq ($(ARCH_HAS_KLP),y)	HAVE_XXHASH = $(shell printf "$(pound)include <xxhash.h>\nXXH3_state_t *state;int main() {}" | \		      $(HOSTCC) $(HOSTCFLAGS) -xc - -o /dev/null -lxxhash 2> /dev/null && echo y || echo n)	ifeq ($(HAVE_XXHASH),y)		BUILD_KLP	 := y		LIBXXHASH_CFLAGS := $(shell $(HOSTPKG_CONFIG) libxxhash --cflags 2>/dev/null) \				    -DBUILD_KLP		LIBXXHASH_LIBS   := $(shell $(HOSTPKG_CONFIG) libxxhash --libs 2>/dev/null || echo -lxxhash)	endifendif export BUILD_ORC BUILD_KLP ifeq ($(srctree),)srctree := $(patsubst %/,%,$(dir $(CURDIR)))srctree := $(patsubst %/,%,$(dir $(srctree)))endif RM ?= rm -f LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/ifneq ($(OUTPUT),)  LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmdelse  LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmdendifLIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a OBJTOOL    := $(OUTPUT)objtoolOBJTOOL_IN := $(OBJTOOL)-in.o LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)LIBELF_LIBS  := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) all: $(OBJTOOL) WARNINGS := -Werror -Wall -Wextra -Wmissing-prototypes			\	    -Wmissing-declarations -Wwrite-strings			\	    -Wno-implicit-fallthrough -Wno-sign-compare			\	    -Wno-unused-parameter INCLUDES := -I$(srctree)/tools/include \	    -I$(srctree)/tools/include/uapi \	    -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \	    -I$(srctree)/tools/arch/$(SRCARCH)/include	\	    -I$(srctree)/tools/objtool/include \	    -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \	    -I$(LIBSUBCMD_OUTPUT)/include OBJTOOL_CFLAGS  := -std=gnu11 -fomit-frame-pointer -O2 -g $(WARNINGS)	\		   $(INCLUDES) $(LIBELF_FLAGS) $(LIBXXHASH_CFLAGS) $(HOSTCFLAGS) OBJTOOL_LDFLAGS := $(LIBSUBCMD) $(LIBELF_LIBS) $(LIBXXHASH_LIBS) $(HOSTLDFLAGS) # Allow old libelf to be used:elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - 2>/dev/null | grep elf_getshdr)OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) # Always want host compilation.HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" ## To support disassembly, objtool needs libopcodes which is provided# with libbfd (binutils-dev or binutils-devel package).## We check using HOSTCC directly rather than the shared feature framework# because objtool is a host tool that links against host libraries.## When using shared libraries, -lopcodes is sufficient as dependencies are# resolved automatically. With static libraries, we must explicitly link# against libopcodes' dependencies: libbfd, libiberty, and sometimes libz.# Try each combination and use the first one that succeeds.#LIBOPCODES_LIBS := $(shell \	for libs in "-lopcodes" \		    "-lopcodes -lbfd" \		    "-lopcodes -lbfd -liberty" \		    "-lopcodes -lbfd -liberty -lz"; do \		echo 'extern void disassemble_init_for_target(void *);' \		     'int main(void) { disassemble_init_for_target(0); return 0; }' | \			$(HOSTCC) -xc - -o /dev/null $$libs 2>/dev/null && \			echo "$$libs" && break; \	done) # Styled disassembler support requires binutils >= 2.39HAVE_DISASM_STYLED := $(shell echo '$(pound)include <dis-asm.h>' | \			$(HOSTCC) -E -xc - 2>/dev/null | grep -q disassembler_style && echo y) BUILD_DISAS := n ifneq ($(LIBOPCODES_LIBS),)	BUILD_DISAS := y	OBJTOOL_CFLAGS += -DDISAS -DPACKAGE='"objtool"'	OBJTOOL_LDFLAGS += $(LIBOPCODES_LIBS)ifeq ($(HAVE_DISASM_STYLED),y)	OBJTOOL_CFLAGS += -DDISASM_INIT_STYLEDendifendif export BUILD_DISAS AWK = awkMKDIR = mkdir export srctree OUTPUT CFLAGS SRCARCH AWKinclude $(srctree)/tools/build/Makefile.include $(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE	$(Q)$(CONFIG_SHELL) ./sync-check.sh	$(Q)$(MAKE) $(build)=objtool $(HOST_OVERRIDES) CFLAGS="$(OBJTOOL_CFLAGS)" \		LDFLAGS="$(OBJTOOL_LDFLAGS)"  $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)	$(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $(OBJTOOL_LDFLAGS) -o $@  $(LIBSUBCMD_OUTPUT):	$(Q)$(MKDIR) -p $@ $(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE	$(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \		DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \		$(HOST_OVERRIDES) EXTRA_CFLAGS="$(OBJTOOL_CFLAGS)" \		$@ install_headers $(LIBSUBCMD)-clean:	$(call QUIET_CLEAN, libsubcmd)	$(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT) clean: $(LIBSUBCMD)-clean	$(Q)find $(OUTPUT) \( -name '*.o' -o -name '\.*.cmd' -o -name '\.*.d' \) -type f -print | xargs $(RM)	$(Q)$(RM) $(OUTPUT)arch/x86/lib/cpu-feature-names.c $(OUTPUT)fixdep	$(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep	$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.objtool	$(Q)$(RM) -r -- $(OUTPUT)feature mrproper: clean	$(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL) FORCE: .PHONY: clean mrproper FORCE