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442f04c3 1include ../scripts/Makefile.include
630e7a29 2include ../scripts/Makefile.arch
442f04c3 3
442f04c3
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4ifeq ($(ARCH),x86_64)
5ARCH := x86
6endif
442f04c3 7
c1d45c3a 8# always use the host compiler
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9HOSTCC ?= gcc
10HOSTLD ?= ld
11CC = $(HOSTCC)
12LD = $(HOSTLD)
13AR = ar
c1d45c3a 14
442f04c3 15ifeq ($(srctree),)
e19b7cee 16srctree := $(patsubst %/,%,$(dir $(CURDIR)))
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17srctree := $(patsubst %/,%,$(dir $(srctree)))
18endif
19
c1d45c3a 20SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
e19b7cee 21LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
c1d45c3a 22LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
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23
24OBJTOOL := $(OUTPUT)objtool
25OBJTOOL_IN := $(OBJTOOL)-in.o
26
27all: $(OBJTOOL)
28
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29INCLUDES := -I$(srctree)/tools/include \
30 -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
fbe7b2a7 31 -I$(srctree)/tools/objtool/arch/$(ARCH)/include
baa41469 32CFLAGS += -Wall -Werror $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -fomit-frame-pointer -O2 -g $(INCLUDES)
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33LDFLAGS += -lelf $(LIBSUBCMD)
34
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35# Allow old libelf to be used:
36elfshdr := $(shell echo '\#include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
37CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
38
442f04c3 39AWK = awk
60cbdf5d 40export srctree OUTPUT CFLAGS SRCARCH AWK
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41include $(srctree)/tools/build/Makefile.include
42
43$(OBJTOOL_IN): fixdep FORCE
44 @$(MAKE) $(build)=objtool
45
46$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
6abf30ed 47 @sh ./sync-check.sh
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48 $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
49
50
51$(LIBSUBCMD): fixdep FORCE
c1d45c3a 52 $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
442f04c3 53
c1d45c3a 54clean:
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55 $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
56 $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
3673cdbc 57 $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
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58
59FORCE:
60
61.PHONY: clean FORCE