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1# SPDX-License-Identifier: GPL-2.02include ../scripts/Makefile.include3include ../scripts/Makefile.arch4 5ifeq ($(srctree),)6srctree := $(patsubst %/,%,$(dir $(CURDIR)))7srctree := $(patsubst %/,%,$(dir $(srctree)))8endif9 10LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/11ifneq ($(OUTPUT),)12 LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd13else14 LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd15endif16LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a17 18OBJTOOL := $(OUTPUT)objtool19OBJTOOL_IN := $(OBJTOOL)-in.o20 21LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)22LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)23 24all: $(OBJTOOL)25 26INCLUDES := -I$(srctree)/tools/include \27 -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \28 -I$(srctree)/tools/arch/$(SRCARCH)/include \29 -I$(srctree)/tools/objtool/include \30 -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \31 -I$(LIBSUBCMD_OUTPUT)/include32# Note, EXTRA_WARNINGS here was determined for CC and not HOSTCC, it33# is passed here to match a legacy behavior.34WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs35OBJTOOL_CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)36OBJTOOL_LDFLAGS := $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)37 38# Allow old libelf to be used:39elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - | grep elf_getshdr)40OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)41 42# Always want host compilation.43HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)"44 45AWK = awk46MKDIR = mkdir47 48ifeq ($(V),1)49 Q =50else51 Q = @52endif53 54BUILD_ORC := n55 56ifeq ($(SRCARCH),x86)57 BUILD_ORC := y58endif59 60ifeq ($(SRCARCH),loongarch)61 BUILD_ORC := y62endif63 64export BUILD_ORC65export srctree OUTPUT CFLAGS SRCARCH AWK66include $(srctree)/tools/build/Makefile.include67 68$(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE69 $(Q)$(CONFIG_SHELL) ./sync-check.sh70 $(Q)$(MAKE) $(build)=objtool $(HOST_OVERRIDES) CFLAGS="$(OBJTOOL_CFLAGS)" \71 LDFLAGS="$(OBJTOOL_LDFLAGS)"72 73 74$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)75 $(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $(OBJTOOL_LDFLAGS) -o $@76 77 78$(LIBSUBCMD_OUTPUT):79 $(Q)$(MKDIR) -p $@80 81$(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE82 $(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \83 DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \84 $(HOST_OVERRIDES) EXTRA_CFLAGS="$(OBJTOOL_CFLAGS)" \85 $@ install_headers86 87$(LIBSUBCMD)-clean:88 $(call QUIET_CLEAN, libsubcmd)89 $(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT)90 91clean: $(LIBSUBCMD)-clean92 $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)93 $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete94 $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep95 96FORCE:97 98.PHONY: clean FORCE99