| 1 |
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| 2 | include ../scripts/Makefile.include
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| 3 | include ../scripts/Makefile.arch
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| 4 |
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| 5 | ifeq ($(ARCH),x86_64)
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| 6 | ARCH := x86
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| 7 | endif
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| 8 |
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| 9 |
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| 10 | HOSTAR ?= ar
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| 11 | HOSTCC ?= gcc
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| 12 | HOSTLD ?= ld
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| 13 | AR = $(HOSTAR)
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| 14 | CC = $(HOSTCC)
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| 15 | LD = $(HOSTLD)
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| 16 |
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| 17 | ifeq ($(srctree),)
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| 18 | srctree := $(patsubst %/,%,$(dir $(CURDIR)))
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| 19 | srctree := $(patsubst %/,%,$(dir $(srctree)))
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| 20 | endif
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| 21 |
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| 22 | SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
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| 23 | LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
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| 24 | LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
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| 25 |
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| 26 | OBJTOOL := $(OUTPUT)objtool
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| 27 | OBJTOOL_IN := $(OBJTOOL)-in.o
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| 28 |
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| 29 | LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null)
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| 30 | LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)
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| 31 |
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| 32 | all: $(OBJTOOL)
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| 33 |
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| 34 | INCLUDES := -I$(srctree)/tools/include \
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| 35 | -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
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| 36 | -I$(srctree)/tools/objtool/arch/$(ARCH)/include
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| 37 | WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
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| 38 | CFLAGS += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
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| 39 | LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
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| 40 |
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| 41 |
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| 42 | elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
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| 43 | CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
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| 44 |
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| 45 | AWK = awk
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| 46 | export srctree OUTPUT CFLAGS SRCARCH AWK
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| 47 | include $(srctree)/tools/build/Makefile.include
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| 48 |
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| 49 | $(OBJTOOL_IN): fixdep FORCE
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| 50 | @$(MAKE) $(build)=objtool
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| 51 |
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| 52 | $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
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| 53 | @$(CONFIG_SHELL) ./sync-check.sh
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| 54 | $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
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| 55 |
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| 56 |
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| 57 | $(LIBSUBCMD): fixdep FORCE
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| 58 | $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
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| 59 |
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| 60 | clean:
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| 61 | $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
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| 62 | $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
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| 63 | $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
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| 64 |
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| 65 | FORCE:
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| 66 |
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| 67 | .PHONY: clean FORCE
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