1 # SPDX-License-Identifier: GPL-2.0 <<
2 include ../scripts/Makefile.include 1 include ../scripts/Makefile.include
3 include ../scripts/Makefile.arch 2 include ../scripts/Makefile.arch
4 3
>> 4 ifeq ($(ARCH),x86_64)
>> 5 ARCH := x86
>> 6 endif
>> 7
>> 8 # always use the host compiler
>> 9 CC = gcc
>> 10 LD = ld
>> 11 AR = ar
>> 12
5 ifeq ($(srctree),) 13 ifeq ($(srctree),)
6 srctree := $(patsubst %/,%,$(dir $(CURDIR))) 14 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
7 srctree := $(patsubst %/,%,$(dir $(srctree))) 15 srctree := $(patsubst %/,%,$(dir $(srctree)))
8 endif 16 endif
9 17
10 LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/ !! 18 SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
11 ifneq ($(OUTPUT),) !! 19 LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
12 LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libs !! 20 LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
13 else <<
14 LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd <<
15 endif <<
16 LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a <<
17 21
18 OBJTOOL := $(OUTPUT)objtool 22 OBJTOOL := $(OUTPUT)objtool
19 OBJTOOL_IN := $(OBJTOOL)-in.o 23 OBJTOOL_IN := $(OBJTOOL)-in.o
20 24
21 LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libe <<
22 LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libe <<
23 <<
24 all: $(OBJTOOL) 25 all: $(OBJTOOL)
25 26
26 INCLUDES := -I$(srctree)/tools/include \ !! 27 INCLUDES := -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi
27 -I$(srctree)/tools/arch/$(HOSTARCH !! 28 CFLAGS += -Wall -Werror $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -fomit-frame-pointer -O2 -g $(INCLUDES)
28 -I$(srctree)/tools/arch/$(SRCARCH) !! 29 LDFLAGS += -lelf $(LIBSUBCMD)
29 -I$(srctree)/tools/objtool/include <<
30 -I$(srctree)/tools/objtool/arch/$( <<
31 -I$(LIBSUBCMD_OUTPUT)/include <<
32 # Note, EXTRA_WARNINGS here was determined for <<
33 # is passed here to match a legacy behavior. <<
34 WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-defa <<
35 OBJTOOL_CFLAGS := -Werror $(WARNINGS) $(KBUILD <<
36 OBJTOOL_LDFLAGS := $(LIBELF_LIBS) $(LIBSUBCMD) <<
37 30
38 # Allow old libelf to be used: 31 # Allow old libelf to be used:
39 elfshdr := $(shell echo '$(pound)include <libe !! 32 elfshdr := $(shell echo '\#include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
40 OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_US !! 33 CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
41 <<
42 # Always want host compilation. <<
43 HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD) <<
44 34
45 AWK = awk 35 AWK = awk
46 MKDIR = mkdir <<
47 <<
48 ifeq ($(V),1) <<
49 Q = <<
50 else <<
51 Q = @ <<
52 endif <<
53 <<
54 BUILD_ORC := n <<
55 <<
56 ifeq ($(SRCARCH),x86) <<
57 BUILD_ORC := y <<
58 endif <<
59 <<
60 ifeq ($(SRCARCH),loongarch) <<
61 BUILD_ORC := y <<
62 endif <<
63 <<
64 export BUILD_ORC <<
65 export srctree OUTPUT CFLAGS SRCARCH AWK 36 export srctree OUTPUT CFLAGS SRCARCH AWK
66 include $(srctree)/tools/build/Makefile.includ 37 include $(srctree)/tools/build/Makefile.include
67 38
68 $(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE !! 39 $(OBJTOOL_IN): fixdep FORCE
69 $(Q)$(CONFIG_SHELL) ./sync-check.sh !! 40 @$(MAKE) $(build)=objtool
70 $(Q)$(MAKE) $(build)=objtool $(HOST_OV <<
71 LDFLAGS="$(OBJTOOL_LDFLAGS)" <<
72 <<
73 41
>> 42 # Busybox's diff doesn't have -I, avoid warning in that case
>> 43 #
74 $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) 44 $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
75 $(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $ !! 45 @(diff -I 2>&1 | grep -q 'option requires an argument' && \
76 !! 46 test -d ../../kernel -a -d ../../tools -a -d ../objtool && (( \
77 !! 47 diff -I'^#include' arch/x86/insn/insn.c ../../arch/x86/lib/insn.c >/dev/null && \
78 $(LIBSUBCMD_OUTPUT): !! 48 diff -I'^#include' arch/x86/insn/inat.c ../../arch/x86/lib/inat.c >/dev/null && \
79 $(Q)$(MKDIR) -p $@ !! 49 diff arch/x86/insn/x86-opcode-map.txt ../../arch/x86/lib/x86-opcode-map.txt >/dev/null && \
>> 50 diff arch/x86/insn/gen-insn-attr-x86.awk ../../arch/x86/tools/gen-insn-attr-x86.awk >/dev/null && \
>> 51 diff -I'^#include' arch/x86/insn/insn.h ../../arch/x86/include/asm/insn.h >/dev/null && \
>> 52 diff -I'^#include' arch/x86/insn/inat.h ../../arch/x86/include/asm/inat.h >/dev/null && \
>> 53 diff -I'^#include' arch/x86/insn/inat_types.h ../../arch/x86/include/asm/inat_types.h >/dev/null) \
>> 54 || echo "warning: objtool: x86 instruction decoder differs from kernel" >&2 )) || true
>> 55 $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
80 56
81 $(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE <<
82 $(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LI <<
83 DESTDIR=$(LIBSUBCMD_OUTPUT) pr <<
84 $(HOST_OVERRIDES) EXTRA_CFLAGS <<
85 $@ install_headers <<
86 57
87 $(LIBSUBCMD)-clean: !! 58 $(LIBSUBCMD): fixdep FORCE
88 $(call QUIET_CLEAN, libsubcmd) !! 59 $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
89 $(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT) <<
90 60
91 clean: $(LIBSUBCMD)-clean !! 61 clean:
92 $(call QUIET_CLEAN, objtool) $(RM) $(O 62 $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
93 $(Q)find $(OUTPUT) -name '*.o' -delete 63 $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
94 $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-t !! 64 $(Q)$(RM) $(OUTPUT)arch/x86/insn/inat-tables.c $(OUTPUT)fixdep
95 65
96 FORCE: 66 FORCE:
97 67
98 .PHONY: clean FORCE 68 .PHONY: clean FORCE
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