1# SPDX-License-Identifier: GPL-2.0
 2include ../scripts/Makefile.include
 3include ../scripts/Makefile.arch
 4
 
 
 
 
 
 
 
 
 
 
 
 5ifeq ($(srctree),)
 6srctree := $(patsubst %/,%,$(dir $(CURDIR)))
 7srctree := $(patsubst %/,%,$(dir $(srctree)))
 8endif
 9
10LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/
11ifneq ($(OUTPUT),)
12  LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd
13else
14  LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd
15endif
16LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a
17
18OBJTOOL    := $(OUTPUT)objtool
19OBJTOOL_IN := $(OBJTOOL)-in.o
20
21LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)
22LIBELF_LIBS  := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
23
24all: $(OBJTOOL)
25
26INCLUDES := -I$(srctree)/tools/include \
27	    -I$(srctree)/tools/include/uapi \
28	    -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
29	    -I$(srctree)/tools/arch/$(SRCARCH)/include	\
30	    -I$(srctree)/tools/objtool/include \
31	    -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \
32	    -I$(LIBSUBCMD_OUTPUT)/include
33# Note, EXTRA_WARNINGS here was determined for CC and not HOSTCC, it
34# is passed here to match a legacy behavior.
35WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs
36OBJTOOL_CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
37OBJTOOL_LDFLAGS := $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
38
39# Allow old libelf to be used:
40elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - | grep elf_getshdr)
41OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
42
43# Always want host compilation.
44HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)"
45
46AWK = awk
47MKDIR = mkdir
48
49ifeq ($(V),1)
50  Q =
51else
52  Q = @
53endif
54
55BUILD_ORC := n
56
57ifeq ($(SRCARCH),x86)
58	BUILD_ORC := y
59endif
60
61ifeq ($(SRCARCH),loongarch)
62	BUILD_ORC := y
63endif
64
65export BUILD_ORC
66export srctree OUTPUT CFLAGS SRCARCH AWK
67include $(srctree)/tools/build/Makefile.include
68
69$(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE
70	$(Q)$(CONFIG_SHELL) ./sync-check.sh
71	$(Q)$(MAKE) $(build)=objtool $(HOST_OVERRIDES) CFLAGS="$(OBJTOOL_CFLAGS)" \
72		LDFLAGS="$(OBJTOOL_LDFLAGS)"
73
74
75$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
76	$(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $(OBJTOOL_LDFLAGS) -o $@
77
78
79$(LIBSUBCMD_OUTPUT):
80	$(Q)$(MKDIR) -p $@
81
82$(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE
83	$(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \
84		DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \
85		$(HOST_OVERRIDES) EXTRA_CFLAGS="$(OBJTOOL_CFLAGS)" \
86		$@ install_headers
87
88$(LIBSUBCMD)-clean:
89	$(call QUIET_CLEAN, libsubcmd)
90	$(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT)
91
92clean: $(LIBSUBCMD)-clean
93	$(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
94	$(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
95	$(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
96
97FORCE:
98
99.PHONY: clean FORCE

 1# SPDX-License-Identifier: GPL-2.0
 2include ../scripts/Makefile.include
 3include ../scripts/Makefile.arch
 4
 5ifeq ($(ARCH),x86_64)
 6ARCH := x86
 7endif
 8
 9# always use the host compiler
10HOSTCC	?= gcc
11HOSTLD	?= ld
12CC	 = $(HOSTCC)
13LD	 = $(HOSTLD)
14AR	 = ar
15
16ifeq ($(srctree),)
17srctree := $(patsubst %/,%,$(dir $(CURDIR)))
18srctree := $(patsubst %/,%,$(dir $(srctree)))
19endif
20
21SUBCMD_SRCDIR		= $(srctree)/tools/lib/subcmd/
22LIBSUBCMD_OUTPUT	= $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
23LIBSUBCMD		= $(LIBSUBCMD_OUTPUT)libsubcmd.a
 
 
 
 
24
25OBJTOOL    := $(OUTPUT)objtool
26OBJTOOL_IN := $(OBJTOOL)-in.o
27
 
 
 
28all: $(OBJTOOL)
29
30INCLUDES := -I$(srctree)/tools/include \
 
31	    -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
32	    -I$(srctree)/tools/objtool/arch/$(ARCH)/include
33WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
34CFLAGS   += -Werror $(WARNINGS) $(HOSTCFLAGS) -g $(INCLUDES)
35LDFLAGS  += -lelf $(LIBSUBCMD) $(HOSTLDFLAGS)
 
 
 
 
 
36
37# Allow old libelf to be used:
38elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
39CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
 
 
 
40
41AWK = awk
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
42export srctree OUTPUT CFLAGS SRCARCH AWK
43include $(srctree)/tools/build/Makefile.include
44
45$(OBJTOOL_IN): fixdep FORCE
46	@$(MAKE) $(build)=objtool
 
 
 
47
48$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
49	@$(CONFIG_SHELL) ./sync-check.sh
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/lib/inat-tables.c $(OUTPUT)fixdep
60
61FORCE:
62
63.PHONY: clean FORCE