# SPDX-License-Identifier: GPL-2.0 include ../scripts/Makefile.include include ../scripts/Makefile.arch ifeq ($(ARCH),x86_64) ARCH := x86 endif # always use the host compiler HOSTCC ?= gcc HOSTLD ?= ld CC = $(HOSTCC) LD = $(HOSTLD) AR = ar ifeq ($(srctree),) srctree := $(patsubst %/,%,$(dir $(CURDIR))) srctree := $(patsubst %/,%,$(dir $(srctree))) endif SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/ LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/) LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a OBJTOOL := $(OUTPUT)objtool OBJTOOL_IN := $(OBJTOOL)-in.o all: $(OBJTOOL) INCLUDES := -I$(srctree)/tools/include \ -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ -I$(srctree)/tools/objtool/arch/$(ARCH)/include WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed CFLAGS += -Wall -Werror $(WARNINGS) -fomit-frame-pointer -O2 -g $(INCLUDES) LDFLAGS += -lelf $(LIBSUBCMD) # Allow old libelf to be used: elfshdr := $(shell echo '\#include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr) CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) AWK = awk export srctree OUTPUT CFLAGS SRCARCH AWK include $(srctree)/tools/build/Makefile.include $(OBJTOOL_IN): fixdep FORCE @$(MAKE) $(build)=objtool $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) @./sync-check.sh $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@ $(LIBSUBCMD): fixdep FORCE $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) clean: $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL) $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep FORCE: .PHONY: clean FORCE