1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
# SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include
include ../scripts/Makefile.arch
ifeq ($(SRCARCH),x86)
BUILD_ORC := y
ARCH_HAS_KLP := y
endif
ifeq ($(SRCARCH),loongarch)
BUILD_ORC := y
endif
ifeq ($(ARCH_HAS_KLP),y)
HAVE_XXHASH = $(shell printf "$(pound)include <xxhash.h>\nXXH3_state_t *state;int main() {}" | \
$(HOSTCC) -xc - -o /dev/null -lxxhash 2> /dev/null && echo y || echo n)
ifeq ($(HAVE_XXHASH),y)
BUILD_KLP := y
LIBXXHASH_CFLAGS := $(shell $(HOSTPKG_CONFIG) libxxhash --cflags 2>/dev/null) \
-DBUILD_KLP
LIBXXHASH_LIBS := $(shell $(HOSTPKG_CONFIG) libxxhash --libs 2>/dev/null || echo -lxxhash)
endif
endif
export BUILD_ORC BUILD_KLP
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
LIBSUBCMD_DIR = $(srctree)/tools/lib/subcmd/
ifneq ($(OUTPUT),)
LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd
else
LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd
endif
LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a
OBJTOOL := $(OUTPUT)objtool
OBJTOOL_IN := $(OBJTOOL)-in.o
LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)
LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
all: $(OBJTOOL)
WARNINGS := -Werror -Wall -Wextra -Wmissing-prototypes \
-Wmissing-declarations -Wwrite-strings \
-Wno-implicit-fallthrough -Wno-sign-compare \
-Wno-unused-parameter
INCLUDES := -I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi \
-I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
-I$(srctree)/tools/arch/$(SRCARCH)/include \
-I$(srctree)/tools/objtool/include \
-I$(srctree)/tools/objtool/arch/$(SRCARCH)/include \
-I$(LIBSUBCMD_OUTPUT)/include
OBJTOOL_CFLAGS := -std=gnu11 -fomit-frame-pointer -O2 -g $(WARNINGS) \
$(INCLUDES) $(LIBELF_FLAGS) $(LIBXXHASH_CFLAGS) $(HOSTCFLAGS)
OBJTOOL_LDFLAGS := $(LIBSUBCMD) $(LIBELF_LIBS) $(LIBXXHASH_LIBS) $(HOSTLDFLAGS)
# Allow old libelf to be used:
elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(HOSTCC) $(OBJTOOL_CFLAGS) -x c -E - 2>/dev/null | grep elf_getshdr)
OBJTOOL_CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
# Always want host compilation.
HOST_OVERRIDES := CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)"
#
# To support disassembly, objtool needs libopcodes which is provided
# with libbdf (binutils-dev or binutils-devel package).
#
FEATURE_USER = .objtool
FEATURE_TESTS = libbfd disassembler-init-styled
FEATURE_DISPLAY =
include $(srctree)/tools/build/Makefile.feature
ifeq ($(feature-disassembler-init-styled), 1)
OBJTOOL_CFLAGS += -DDISASM_INIT_STYLED
endif
BUILD_DISAS := n
ifeq ($(feature-libbfd),1)
BUILD_DISAS := y
OBJTOOL_CFLAGS += -DDISAS -DPACKAGE="objtool"
OBJTOOL_LDFLAGS += -lopcodes
endif
export BUILD_DISAS
AWK = awk
MKDIR = mkdir
export srctree OUTPUT CFLAGS SRCARCH AWK
include $(srctree)/tools/build/Makefile.include
$(OBJTOOL_IN): fixdep $(LIBSUBCMD) FORCE
$(Q)$(CONFIG_SHELL) ./sync-check.sh
$(Q)$(MAKE) $(build)=objtool $(HOST_OVERRIDES) CFLAGS="$(OBJTOOL_CFLAGS)" \
LDFLAGS="$(OBJTOOL_LDFLAGS)"
$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
$(QUIET_LINK)$(HOSTCC) $(OBJTOOL_IN) $(OBJTOOL_LDFLAGS) -o $@
$(LIBSUBCMD_OUTPUT):
$(Q)$(MKDIR) -p $@
$(LIBSUBCMD): fixdep $(LIBSUBCMD_OUTPUT) FORCE
$(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \
DESTDIR=$(LIBSUBCMD_OUTPUT) prefix= subdir= \
$(HOST_OVERRIDES) EXTRA_CFLAGS="$(OBJTOOL_CFLAGS)" \
$@ install_headers
$(LIBSUBCMD)-clean:
$(call QUIET_CLEAN, libsubcmd)
$(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT)
clean: $(LIBSUBCMD)-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/lib/cpu-feature-names.c $(OUTPUT)fixdep
$(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.objtool
$(Q)$(RM) -r -- $(OUTPUT)feature
FORCE:
.PHONY: clean FORCE
|
