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