1include ../scripts/Makefile.include 2 3ifndef ($(ARCH)) 4ARCH ?= $(shell uname -m) 5ifeq ($(ARCH),x86_64) 6ARCH := x86 7endif 8endif 9 10# always use the host compiler 11CC = gcc 12LD = ld 13AR = ar 14 15ifeq ($(srctree),) 16srctree := $(patsubst %/,%,$(dir $(shell pwd))) 17srctree := $(patsubst %/,%,$(dir $(srctree))) 18endif 19 20SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/ 21LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(PWD)/) 22LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a 23 24OBJTOOL := $(OUTPUT)objtool 25OBJTOOL_IN := $(OBJTOOL)-in.o 26 27all: $(OBJTOOL) 28 29INCLUDES := -I$(srctree)/tools/include 30CFLAGS += -Wall -Werror $(EXTRA_WARNINGS) -fomit-frame-pointer -O2 -g $(INCLUDES) 31LDFLAGS += -lelf $(LIBSUBCMD) 32 33AWK = awk 34export srctree OUTPUT CFLAGS ARCH AWK 35include $(srctree)/tools/build/Makefile.include 36 37$(OBJTOOL_IN): fixdep FORCE 38 @$(MAKE) $(build)=objtool 39 40$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) 41 @(test -d ../../kernel -a -d ../../tools -a -d ../objtool && (( \ 42 diff -I'^#include' arch/x86/insn/insn.c ../../arch/x86/lib/insn.c >/dev/null && \ 43 diff -I'^#include' arch/x86/insn/inat.c ../../arch/x86/lib/inat.c >/dev/null && \ 44 diff arch/x86/insn/x86-opcode-map.txt ../../arch/x86/lib/x86-opcode-map.txt >/dev/null && \ 45 diff arch/x86/insn/gen-insn-attr-x86.awk ../../arch/x86/tools/gen-insn-attr-x86.awk >/dev/null && \ 46 diff -I'^#include' arch/x86/insn/insn.h ../../arch/x86/include/asm/insn.h >/dev/null && \ 47 diff -I'^#include' arch/x86/insn/inat.h ../../arch/x86/include/asm/inat.h >/dev/null && \ 48 diff -I'^#include' arch/x86/insn/inat_types.h ../../arch/x86/include/asm/inat_types.h >/dev/null) \ 49 || echo "Warning: objtool: x86 instruction decoder differs from kernel" >&2 )) || true 50 $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@ 51 52 53$(LIBSUBCMD): fixdep FORCE 54 $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) 55 56clean: 57 $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL) 58 $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete 59 $(Q)$(RM) $(OUTPUT)arch/x86/insn/inat-tables.c $(OUTPUT)fixdep 60 61FORCE: 62 63.PHONY: clean FORCE 64