1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 include ..
/..
/scripts
/Makefile.
include
5 srctree
:= $(patsubst %/,%,$(dir $(CURDIR
)))
6 srctree
:= $(patsubst %/,%,$(dir $(srctree
)))
7 srctree
:= $(patsubst %/,%,$(dir $(srctree
)))
16 BPF_DIR
= $(srctree
)/tools
/lib
/bpf
23 BOOTSTRAP_OUTPUT
:= $(_OUTPUT
)bootstrap
/
25 LIBBPF_OUTPUT
:= $(_OUTPUT
)libbpf
/
26 LIBBPF_DESTDIR
:= $(LIBBPF_OUTPUT
)
27 LIBBPF_INCLUDE
:= $(LIBBPF_DESTDIR
)include
28 LIBBPF_HDRS_DIR
:= $(LIBBPF_INCLUDE
)/bpf
29 LIBBPF
:= $(LIBBPF_OUTPUT
)libbpf.a
31 LIBBPF_BOOTSTRAP_OUTPUT
:= $(BOOTSTRAP_OUTPUT
)libbpf
/
32 LIBBPF_BOOTSTRAP_DESTDIR
:= $(LIBBPF_BOOTSTRAP_OUTPUT
)
33 LIBBPF_BOOTSTRAP_INCLUDE
:= $(LIBBPF_BOOTSTRAP_DESTDIR
)include
34 LIBBPF_BOOTSTRAP_HDRS_DIR
:= $(LIBBPF_BOOTSTRAP_INCLUDE
)/bpf
35 LIBBPF_BOOTSTRAP
:= $(LIBBPF_BOOTSTRAP_OUTPUT
)libbpf.a
37 # We need to copy hashmap.h, nlattr.h, relo_core.h and libbpf_internal.h
38 # which are not otherwise exported by libbpf, but still required by bpftool.
39 LIBBPF_INTERNAL_HDRS
:= $(addprefix $(LIBBPF_HDRS_DIR
)/,hashmap.h nlattr.h relo_core.h libbpf_internal.h
)
40 LIBBPF_BOOTSTRAP_INTERNAL_HDRS
:= $(addprefix $(LIBBPF_BOOTSTRAP_HDRS_DIR
)/,hashmap.h relo_core.h libbpf_internal.h
)
42 $(LIBBPF_OUTPUT
) $(BOOTSTRAP_OUTPUT
) $(LIBBPF_BOOTSTRAP_OUTPUT
) $(LIBBPF_HDRS_DIR
) $(LIBBPF_BOOTSTRAP_HDRS_DIR
):
43 $(QUIET_MKDIR
)mkdir
-p
$@
45 $(LIBBPF
): $(wildcard $(BPF_DIR
)/*.
[ch
] $(BPF_DIR
)/Makefile
) |
$(LIBBPF_OUTPUT
)
46 $(Q
)$(MAKE
) -C
$(BPF_DIR
) OUTPUT
=$(LIBBPF_OUTPUT
) \
47 DESTDIR
=$(LIBBPF_DESTDIR
:/=) prefix= $(LIBBPF
) install_headers
49 $(LIBBPF_INTERNAL_HDRS
): $(LIBBPF_HDRS_DIR
)/%.h
: $(BPF_DIR
)/%.h |
$(LIBBPF_HDRS_DIR
)
50 $(call QUIET_INSTALL
, $@
)
51 $(Q
)install -m
644 -t
$(LIBBPF_HDRS_DIR
) $<
53 $(LIBBPF_BOOTSTRAP
): $(wildcard $(BPF_DIR
)/*.
[ch
] $(BPF_DIR
)/Makefile
) |
$(LIBBPF_BOOTSTRAP_OUTPUT
)
54 $(Q
)$(MAKE
) -C
$(BPF_DIR
) OUTPUT
=$(LIBBPF_BOOTSTRAP_OUTPUT
) \
55 DESTDIR
=$(LIBBPF_BOOTSTRAP_DESTDIR
:/=) prefix= \
56 ARCH
= CROSS_COMPILE
= CC
="$(HOSTCC)" LD
="$(HOSTLD)" AR
="$(HOSTAR)" $@ install_headers
58 $(LIBBPF_BOOTSTRAP_INTERNAL_HDRS
): $(LIBBPF_BOOTSTRAP_HDRS_DIR
)/%.h
: $(BPF_DIR
)/%.h |
$(LIBBPF_BOOTSTRAP_HDRS_DIR
)
59 $(call QUIET_INSTALL
, $@
)
60 $(Q
)install -m
644 -t
$(LIBBPF_BOOTSTRAP_HDRS_DIR
) $<
62 $(LIBBPF
)-clean: FORCE |
$(LIBBPF_OUTPUT
)
63 $(call QUIET_CLEAN
, libbpf
)
64 $(Q
)$(MAKE
) -C
$(BPF_DIR
) OUTPUT
=$(LIBBPF_OUTPUT
) clean >/dev
/null
66 $(LIBBPF_BOOTSTRAP
)-clean: FORCE |
$(LIBBPF_BOOTSTRAP_OUTPUT
)
67 $(call QUIET_CLEAN
, libbpf-bootstrap
)
68 $(Q
)$(MAKE
) -C
$(BPF_DIR
) OUTPUT
=$(LIBBPF_BOOTSTRAP_OUTPUT
) clean >/dev
/null
71 bash_compdir ?
= /usr
/share
/bash-completion
/completions
74 CFLAGS
+= -W
-Wall
-Wextra
-Wno-unused-parameter
-Wno-missing-field-initializers
75 CFLAGS
+= $(filter-out -Wswitch-enum
-Wnested-externs
,$(EXTRA_WARNINGS
))
76 CFLAGS
+= -DPACKAGE
='"bpftool"' -D__EXPORTED_HEADERS__ \
79 -I
$(srctree
)/kernel
/bpf
/ \
80 -I
$(srctree
)/tools
/include \
81 -I
$(srctree
)/tools
/include/uapi
82 ifneq ($(BPFTOOL_VERSION
),)
83 CFLAGS
+= -DBPFTOOL_VERSION
='"$(BPFTOOL_VERSION)"'
85 ifneq ($(EXTRA_CFLAGS
),)
86 CFLAGS
+= $(EXTRA_CFLAGS
)
88 ifneq ($(EXTRA_LDFLAGS
),)
89 LDFLAGS
+= $(EXTRA_LDFLAGS
)
92 HOST_CFLAGS
:= $(subst -I
$(LIBBPF_INCLUDE
),-I
$(LIBBPF_BOOTSTRAP_INCLUDE
),\
93 $(subst $(CLANG_CROSS_FLAGS
),,$(CFLAGS
)))
94 HOST_LDFLAGS
:= $(LDFLAGS
)
99 FEATURE_USER
= .bpftool
101 FEATURE_TESTS
:= clang-bpf-co-re
102 FEATURE_TESTS
+= llvm
103 FEATURE_TESTS
+= libcap
104 FEATURE_TESTS
+= libbfd
105 FEATURE_TESTS
+= libbfd-liberty
106 FEATURE_TESTS
+= libbfd-liberty-z
107 FEATURE_TESTS
+= disassembler-four-args
108 FEATURE_TESTS
+= disassembler-init-styled
110 FEATURE_DISPLAY
:= clang-bpf-co-re
111 FEATURE_DISPLAY
+= llvm
112 FEATURE_DISPLAY
+= libcap
113 FEATURE_DISPLAY
+= libbfd
114 FEATURE_DISPLAY
+= libbfd-liberty
115 FEATURE_DISPLAY
+= libbfd-liberty-z
118 NON_CHECK_FEAT_TARGETS
:= clean uninstall doc doc-clean doc-install doc-uninstall
120 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS
),$(MAKECMDGOALS
)),)
125 ifeq ($(check_feat
),1)
126 ifeq ($(FEATURES_DUMP
),)
127 include $(srctree
)/tools
/build
/Makefile.feature
129 include $(FEATURES_DUMP
)
133 LIBS
= $(LIBBPF
) -lelf
-lz
134 LIBS_BOOTSTRAP
= $(LIBBPF_BOOTSTRAP
) -lelf
-lz
135 ifeq ($(feature-libcap
), 1)
136 CFLAGS
+= -DUSE_LIBCAP
140 include $(wildcard $(OUTPUT
)*.d
)
142 all: $(OUTPUT
)bpftool
144 SRCS
:= $(wildcard *.c
)
146 ifeq ($(feature-llvm
),1)
147 # If LLVM is available, use it for JIT disassembly
148 CFLAGS
+= -DHAVE_LLVM_SUPPORT
149 LLVM_CONFIG_LIB_COMPONENTS
:= mcdisassembler all-targets
150 # llvm-config always adds -D_GNU_SOURCE, however, it may already be in CFLAGS
151 # (e.g. when bpftool build is called from selftests build as selftests
152 # Makefile includes lib.mk which sets -D_GNU_SOURCE) which would cause
153 # compilation error due to redefinition. Let's filter it out here.
154 CFLAGS
+= $(filter-out -D_GNU_SOURCE
,$(shell $(LLVM_CONFIG
) --cflags))
155 LIBS
+= $(shell $(LLVM_CONFIG
) --libs
$(LLVM_CONFIG_LIB_COMPONENTS
))
156 ifeq ($(shell $(LLVM_CONFIG
) --shared-mode
),static
)
157 LIBS
+= $(shell $(LLVM_CONFIG
) --system-libs
$(LLVM_CONFIG_LIB_COMPONENTS
))
160 LDFLAGS
+= $(shell $(LLVM_CONFIG
) --ldflags)
162 # Fall back on libbfd
163 ifeq ($(feature-libbfd
),1)
164 LIBS
+= -lbfd
-ldl
-lopcodes
165 else ifeq ($(feature-libbfd-liberty
),1)
166 LIBS
+= -lbfd
-ldl
-lopcodes
-liberty
167 else ifeq ($(feature-libbfd-liberty-z
),1)
168 LIBS
+= -lbfd
-ldl
-lopcodes
-liberty
-lz
171 # If one of the above feature combinations is set, we support libbfd
172 ifneq ($(filter -lbfd
,$(LIBS
)),)
173 CFLAGS
+= -DHAVE_LIBBFD_SUPPORT
175 # Libbfd interface changed over time, figure out what we need
176 ifeq ($(feature-disassembler-four-args
), 1)
177 CFLAGS
+= -DDISASM_FOUR_ARGS_SIGNATURE
179 ifeq ($(feature-disassembler-init-styled
), 1)
180 CFLAGS
+= -DDISASM_INIT_STYLED
184 ifeq ($(filter -DHAVE_LLVM_SUPPORT
-DHAVE_LIBBFD_SUPPORT
,$(CFLAGS
)),)
185 # No support for JIT disassembly
186 SRCS
:= $(filter-out jit_disasm.c
,$(SRCS
))
189 BPFTOOL_BOOTSTRAP
:= $(BOOTSTRAP_OUTPUT
)bpftool
191 BOOTSTRAP_OBJS
= $(addprefix $(BOOTSTRAP_OUTPUT
),main.o common.o json_writer.o gen.o btf.o
)
192 $(BOOTSTRAP_OBJS
): $(LIBBPF_BOOTSTRAP
)
194 OBJS
= $(patsubst %.c
,$(OUTPUT
)%.o
,$(SRCS
)) $(OUTPUT
)disasm.o
195 $(OBJS
): $(LIBBPF
) $(LIBBPF_INTERNAL_HDRS
)
197 VMLINUX_BTF_PATHS ?
= $(if
$(O
),$(O
)/vmlinux
) \
198 $(if
$(KBUILD_OUTPUT
),$(KBUILD_OUTPUT
)/vmlinux
) \
200 /sys
/kernel
/btf
/vmlinux \
201 /boot
/vmlinux-
$(shell uname
-r
)
202 VMLINUX_BTF ?
= $(abspath
$(firstword $(wildcard $(VMLINUX_BTF_PATHS
))))
204 bootstrap
: $(BPFTOOL_BOOTSTRAP
)
206 ifneq ($(VMLINUX_BTF
)$(VMLINUX_H
),)
207 ifeq ($(feature-clang-bpf-co-re
),1)
212 $(OUTPUT
)vmlinux.h
: $(VMLINUX_BTF
) $(BPFTOOL_BOOTSTRAP
)
213 $(QUIET_GEN
)$(BPFTOOL_BOOTSTRAP
) btf dump file
$< format c
> $@
215 $(OUTPUT
)vmlinux.h
: $(VMLINUX_H
)
216 $(Q
)cp
"$(VMLINUX_H)" $@
219 $(OUTPUT
)%.bpf.o
: skeleton
/%.bpf.c
$(OUTPUT
)vmlinux.h
$(LIBBPF_BOOTSTRAP
)
220 $(QUIET_CLANG
)$(CLANG
) \
221 -I
$(or
$(OUTPUT
),.
) \
222 -I
$(srctree
)/tools
/include/uapi
/ \
223 -I
$(LIBBPF_BOOTSTRAP_INCLUDE
) \
224 -g
-O2
-Wall
-fno-stack-protector \
225 --target
=bpf
-c
$< -o
$@
226 $(Q
)$(LLVM_STRIP
) -g
$@
228 $(OUTPUT
)%.skel.h
: $(OUTPUT
)%.bpf.o
$(BPFTOOL_BOOTSTRAP
)
229 $(QUIET_GEN
)$(BPFTOOL_BOOTSTRAP
) gen skeleton
$< > $@
231 $(OUTPUT
)prog.o
: $(OUTPUT
)profiler.skel.h
233 $(OUTPUT
)pids.o
: $(OUTPUT
)pid_iter.skel.h
238 CFLAGS
+= $(if
$(BUILD_BPF_SKELS
),,-DBPFTOOL_WITHOUT_SKELETONS
)
240 $(OUTPUT
)disasm.o
: $(srctree
)/kernel
/bpf
/disasm.c
241 $(QUIET_CC
)$(CC
) $(CFLAGS
) -c
-MMD
$< -o
$@
243 $(BPFTOOL_BOOTSTRAP
): $(BOOTSTRAP_OBJS
) $(LIBBPF_BOOTSTRAP
)
244 $(QUIET_LINK
)$(HOSTCC
) $(HOST_CFLAGS
) $(HOST_LDFLAGS
) $(BOOTSTRAP_OBJS
) $(LIBS_BOOTSTRAP
) -o
$@
246 $(OUTPUT
)bpftool
: $(OBJS
) $(LIBBPF
)
247 $(QUIET_LINK
)$(CC
) $(CFLAGS
) $(LDFLAGS
) $(OBJS
) $(LIBS
) -o
$@
249 $(BOOTSTRAP_OUTPUT
)%.o
: %.c
$(LIBBPF_BOOTSTRAP_INTERNAL_HDRS
) |
$(BOOTSTRAP_OUTPUT
)
250 $(QUIET_CC
)$(HOSTCC
) $(HOST_CFLAGS
) -c
-MMD
$< -o
$@
253 $(QUIET_CC
)$(CC
) $(CFLAGS
) -c
-MMD
$< -o
$@
255 feature-detect-clean
:
256 $(call QUIET_CLEAN
, feature-detect
)
257 $(Q
)$(MAKE
) -C
$(srctree
)/tools
/build
/feature
/ clean >/dev
/null
259 clean: $(LIBBPF
)-clean $(LIBBPF_BOOTSTRAP
)-clean feature-detect-clean
260 $(call QUIET_CLEAN
, bpftool
)
261 $(Q
)$(RM
) -- $(OUTPUT
)bpftool
$(OUTPUT
)*.o
$(OUTPUT
)*.d
262 $(Q
)$(RM
) -- $(OUTPUT
)*.skel.h
$(OUTPUT
)vmlinux.h
263 $(Q
)$(RM
) -r
-- $(LIBBPF_OUTPUT
) $(BOOTSTRAP_OUTPUT
)
264 $(call QUIET_CLEAN
, core-gen
)
265 $(Q
)$(RM
) -- $(OUTPUT
)FEATURE-DUMP.bpftool
266 $(Q
)$(RM
) -r
-- $(OUTPUT
)feature
/
268 install-bin
: $(OUTPUT
)bpftool
269 $(call QUIET_INSTALL
, bpftool
)
270 $(Q
)$(INSTALL
) -m
0755 -d
$(DESTDIR
)$(prefix)/sbin
271 $(Q
)$(INSTALL
) $(OUTPUT
)bpftool
$(DESTDIR
)$(prefix)/sbin
/bpftool
274 $(Q
)$(INSTALL
) -m
0755 -d
$(DESTDIR
)$(bash_compdir
)
275 $(Q
)$(INSTALL
) -m
0644 bash-completion
/bpftool
$(DESTDIR
)$(bash_compdir
)
278 $(call QUIET_UNINST
, bpftool
)
279 $(Q
)$(RM
) -- $(DESTDIR
)$(prefix)/sbin
/bpftool
280 $(Q
)$(RM
) -- $(DESTDIR
)$(bash_compdir
)/bpftool
283 $(call descend
,Documentation
)
286 $(call descend
,Documentation
,clean)
289 $(call descend
,Documentation
,install)
292 $(call descend
,Documentation
,uninstall)
297 .PHONY
: all FORCE bootstrap
clean install-bin
install uninstall
298 .PHONY
: doc doc-clean doc-install doc-uninstall
301 # Delete partially updated (corrupted) files on error
