[mirror_ubuntu-jammy-kernel.git] / tools / objtool / Makefile

# SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include
include ../scripts/Makefile.arch

# always use the host compiler
ifneq ($(LLVM),)
HOSTAR	?= llvm-ar
HOSTCC	?= clang
HOSTLD	?= ld.lld
else
HOSTAR	?= ar
HOSTCC	?= gcc
HOSTLD	?= ld
endif
AR	 = $(HOSTAR)
CC	 = $(HOSTCC)
LD	 = $(HOSTLD)

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

LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null)
LIBELF_LIBS  := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)

all: $(OBJTOOL)

INCLUDES := -I$(srctree)/tools/include \
	    -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
	    -I$(srctree)/tools/arch/$(SRCARCH)/include	\
	    -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include
WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
CFLAGS   := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
LDFLAGS  += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)

# Allow old libelf to be used:
elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)

AWK = awk

SUBCMD_CHECK := n
SUBCMD_ORC := n

ifeq ($(SRCARCH),x86)
	SUBCMD_CHECK := y
	SUBCMD_ORC := y
endif

export SUBCMD_CHECK SUBCMD_ORC
export srctree OUTPUT CFLAGS SRCARCH AWK
include $(srctree)/tools/build/Makefile.include

$(OBJTOOL_IN): fixdep FORCE
	@$(CONFIG_SHELL) ./sync-check.sh
	@$(MAKE) $(build)=objtool

$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
	$(QUIET_LINK)$(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/inat-tables.c $(OUTPUT)fixdep

FORCE:

.PHONY: clean FORCE
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
442f04c3	2	include ../scripts/Makefile.include
630e7a29	3	include ../scripts/Makefile.arch
442f04c3	4
c1d45c3a	5	# always use the host compiler
a0d1c951 MY	6	ifneq ($(LLVM),)
	7	HOSTAR ?= llvm-ar
	8	HOSTCC ?= clang
	9	HOSTLD ?= ld.lld
	10	else
8ea58f1e	11	HOSTAR ?= ar
14c47b54 MP	12	HOSTCC ?= gcc
14c47b54 MP	13	HOSTLD ?= ld
a0d1c951	14	endif
8ea58f1e	15	AR = $(HOSTAR)
14c47b54 MP	16	CC = $(HOSTCC)
14c47b54 MP	17	LD = $(HOSTLD)
c1d45c3a	18
442f04c3	19	ifeq ($(srctree),)
e19b7cee	20	srctree := $(patsubst %/,%,$(dir $(CURDIR)))
442f04c3 JP	21	srctree := $(patsubst %/,%,$(dir $(srctree)))
	22	endif
	23
c1d45c3a	24	SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
e19b7cee	25	LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
c1d45c3a	26	LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
442f04c3 JP	27
	28	OBJTOOL := $(OUTPUT)objtool
	29	OBJTOOL_IN := $(OBJTOOL)-in.o
	30
056d28d1 REB	31	LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null)
	32	LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null \|\| echo -lelf)
	33
442f04c3 JP	34	all: $(OBJTOOL)
442f04c3 JP	35
6a77cff8 JP	36	INCLUDES := -I$(srctree)/tools/include \
6a77cff8 JP	37	-I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
6f8ca676 JT	38	-I$(srctree)/tools/arch/$(SRCARCH)/include \
6f8ca676 JT	39	-I$(srctree)/tools/objtool/arch/$(SRCARCH)/include
21ec3bf6	40	WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
f73b3cc3	41	CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
056d28d1	42	LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
442f04c3	43
2e51f262	44	# Allow old libelf to be used:
9564a8cf	45	elfshdr := $(shell echo '$(pound)include <libelf.h>' \| $(CC) $(CFLAGS) -x c -E - \| grep elf_getshdr)
2e51f262 JB	46	CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
2e51f262 JB	47
442f04c3	48	AWK = awk
0decf1f8 MH	49
	50	SUBCMD_CHECK := n
	51	SUBCMD_ORC := n
	52
	53	ifeq ($(SRCARCH),x86)
	54	SUBCMD_CHECK := y
	55	SUBCMD_ORC := y
	56	endif
	57
	58	export SUBCMD_CHECK SUBCMD_ORC
60cbdf5d	59	export srctree OUTPUT CFLAGS SRCARCH AWK
442f04c3 JP	60	include $(srctree)/tools/build/Makefile.include
	61
	62	$(OBJTOOL_IN): fixdep FORCE
aa584727	63	@$(CONFIG_SHELL) ./sync-check.sh
442f04c3 JP	64	@$(MAKE) $(build)=objtool
	65
	66	$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
442f04c3 JP	67	$(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
	68
	69
	70	$(LIBSUBCMD): fixdep FORCE
c1d45c3a	71	$(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
442f04c3	72
c1d45c3a	73	clean:
442f04c3 JP	74	$(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
442f04c3 JP	75	$(Q)find $(OUTPUT) -name '.o' -delete -o -name '\..cmd' -delete -o -name '\.*.d' -delete
d046b725	76	$(Q)$(RM) $(OUTPUT)arch/x86/inat-tables.c $(OUTPUT)fixdep
442f04c3 JP	77
	78	FORCE:
	79
	80	.PHONY: clean FORCE