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1# SPDX-License-Identifier: GPL-2.0
2include ../../../build/Build.include
3include ../../../scripts/Makefile.arch
4include ../../../scripts/Makefile.include
5
6CXX ?= $(CROSS_COMPILE)g++
7
8CURDIR := $(abspath .)
9TOOLSDIR := $(abspath ../../..)
10LIBDIR := $(TOOLSDIR)/lib
11BPFDIR := $(LIBDIR)/bpf
12TOOLSINCDIR := $(TOOLSDIR)/include
13TOOLSARCHINCDIR := $(TOOLSDIR)/arch/$(SRCARCH)/include
14BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
15APIDIR := $(TOOLSINCDIR)/uapi
16ifneq ($(O),)
17GENDIR := $(O)/include/generated
18else
19GENDIR := $(abspath ../../../../include/generated)
20endif
21GENHDR := $(GENDIR)/autoconf.h
22PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
23
24ifneq ($(wildcard $(GENHDR)),)
25 GENFLAGS := -DHAVE_GENHDR
26endif
27
28BPF_GCC ?= $(shell command -v bpf-gcc;)
29SAN_CFLAGS ?=
30SAN_LDFLAGS ?= $(SAN_CFLAGS)
31RELEASE ?=
32OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0)
33
34LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null)
35LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
36
37ifeq ($(srctree),)
38srctree := $(patsubst %/,%,$(dir $(CURDIR)))
39srctree := $(patsubst %/,%,$(dir $(srctree)))
40srctree := $(patsubst %/,%,$(dir $(srctree)))
41srctree := $(patsubst %/,%,$(dir $(srctree)))
42endif
43
44CFLAGS += -g $(OPT_FLAGS) -rdynamic \
45 -Wall -Werror -fno-omit-frame-pointer \
46 $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \
47 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \
48 -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT)
49LDFLAGS += $(SAN_LDFLAGS)
50LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread
51
52PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1")
53PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null)
54LDLIBS += $(PCAP_LIBS)
55CFLAGS += $(PCAP_CFLAGS)
56
57# The following tests perform type punning and they may break strict
58# aliasing rules, which are exploited by both GCC and clang by default
59# while optimizing. This can lead to broken programs.
60progs/bind4_prog.c-CFLAGS := -fno-strict-aliasing
61progs/bind6_prog.c-CFLAGS := -fno-strict-aliasing
62progs/dynptr_fail.c-CFLAGS := -fno-strict-aliasing
63progs/linked_list_fail.c-CFLAGS := -fno-strict-aliasing
64progs/map_kptr_fail.c-CFLAGS := -fno-strict-aliasing
65progs/syscall.c-CFLAGS := -fno-strict-aliasing
66progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing
67progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing
68progs/timer_crash.c-CFLAGS := -fno-strict-aliasing
69progs/test_global_func9.c-CFLAGS := -fno-strict-aliasing
70progs/verifier_nocsr.c-CFLAGS := -fno-strict-aliasing
71
72# Some utility functions use LLVM libraries
73jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS)
74
75ifneq ($(LLVM),)
76# Silence some warnings when compiled with clang
77CFLAGS += -Wno-unused-command-line-argument
78endif
79
80# Check whether bpf cpu=v4 is supported or not by clang
81ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),)
82CLANG_CPUV4 := 1
83endif
84
85# Order correspond to 'make run_tests' order
86TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \
87 test_sockmap \
88 test_tcpnotify_user test_sysctl \
89 test_progs-no_alu32
90TEST_INST_SUBDIRS := no_alu32
91
92# Also test bpf-gcc, if present
93ifneq ($(BPF_GCC),)
94TEST_GEN_PROGS += test_progs-bpf_gcc
95TEST_INST_SUBDIRS += bpf_gcc
96
97# The following tests contain C code that, although technically legal,
98# triggers GCC warnings that cannot be disabled: declaration of
99# anonymous struct types in function parameter lists.
100progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error
101progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error
102progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error
103progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error
104progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error
105
106# The following tests do type-punning, via the __imm_insn macro, from
107# `struct bpf_insn' to long and then uses the value. This triggers an
108# "is used uninitialized" warning in GCC due to strict-aliasing
109# rules.
110progs/verifier_ref_tracking.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
111progs/verifier_unpriv.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
112progs/verifier_cgroup_storage.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
113progs/verifier_ld_ind.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
114progs/verifier_map_ret_val.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
115progs/verifier_spill_fill.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
116progs/verifier_subprog_precision.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
117progs/verifier_uninit.c-bpf_gcc-CFLAGS := -fno-strict-aliasing
118endif
119
120ifneq ($(CLANG_CPUV4),)
121TEST_GEN_PROGS += test_progs-cpuv4
122TEST_INST_SUBDIRS += cpuv4
123endif
124
125TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o
126TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c)
127
128# Order correspond to 'make run_tests' order
129TEST_PROGS := test_kmod.sh \
130 test_xdp_redirect.sh \
131 test_xdp_redirect_multi.sh \
132 test_xdp_meta.sh \
133 test_tunnel.sh \
134 test_lwt_seg6local.sh \
135 test_lirc_mode2.sh \
136 test_flow_dissector.sh \
137 test_xdp_vlan_mode_generic.sh \
138 test_xdp_vlan_mode_native.sh \
139 test_lwt_ip_encap.sh \
140 test_tc_tunnel.sh \
141 test_tc_edt.sh \
142 test_xdping.sh \
143 test_bpftool_build.sh \
144 test_bpftool.sh \
145 test_bpftool_metadata.sh \
146 test_doc_build.sh \
147 test_xsk.sh \
148 test_xdp_features.sh
149
150TEST_PROGS_EXTENDED := with_addr.sh \
151 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \
152 test_xdp_vlan.sh test_bpftool.py
153
154# Compile but not part of 'make run_tests'
155TEST_GEN_PROGS_EXTENDED = \
156 bench \
157 bpf_testmod.ko \
158 bpf_test_modorder_x.ko \
159 bpf_test_modorder_y.ko \
160 bpf_test_no_cfi.ko \
161 flow_dissector_load \
162 runqslower \
163 test_cpp \
164 test_flow_dissector \
165 test_lirc_mode2_user \
166 veristat \
167 xdp_features \
168 xdp_hw_metadata \
169 xdp_redirect_multi \
170 xdp_synproxy \
171 xdping \
172 xskxceiver
173
174TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi
175
176ifneq ($(V),1)
177submake_extras := feature_display=0
178endif
179
180# override lib.mk's default rules
181OVERRIDE_TARGETS := 1
182override define CLEAN
183 $(call msg,CLEAN)
184 $(Q)$(RM) -r $(TEST_GEN_PROGS)
185 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED)
186 $(Q)$(RM) -r $(TEST_GEN_FILES)
187 $(Q)$(RM) -r $(EXTRA_CLEAN)
188 $(Q)$(MAKE) -C bpf_testmod clean
189 $(Q)$(MAKE) docs-clean
190endef
191
192include ../lib.mk
193
194NON_CHECK_FEAT_TARGETS := clean docs-clean
195CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none"))
196ifneq ($(CHECK_FEAT),)
197FEATURE_USER := .selftests
198FEATURE_TESTS := llvm
199FEATURE_DISPLAY := $(FEATURE_TESTS)
200
201# Makefile.feature expects OUTPUT to end with a slash
202ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1)
203$(let OUTPUT,$(OUTPUT)/,\
204 $(eval include ../../../build/Makefile.feature))
205else
206override OUTPUT := $(OUTPUT)/
207$(eval include ../../../build/Makefile.feature)
208override OUTPUT := $(patsubst %/,%,$(OUTPUT))
209endif
210endif
211
212ifeq ($(feature-llvm),1)
213 LLVM_CFLAGS += -DHAVE_LLVM_SUPPORT
214 LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets
215 # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict
216 LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags))
217 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS))
218 LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))
219 LLVM_LDLIBS += -lstdc++
220 LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags)
221endif
222
223SCRATCH_DIR := $(OUTPUT)/tools
224BUILD_DIR := $(SCRATCH_DIR)/build
225INCLUDE_DIR := $(SCRATCH_DIR)/include
226BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
227ifneq ($(CROSS_COMPILE),)
228HOST_BUILD_DIR := $(BUILD_DIR)/host
229HOST_SCRATCH_DIR := $(OUTPUT)/host-tools
230HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include
231else
232HOST_BUILD_DIR := $(BUILD_DIR)
233HOST_SCRATCH_DIR := $(SCRATCH_DIR)
234HOST_INCLUDE_DIR := $(INCLUDE_DIR)
235endif
236HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
237RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
238RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/
239
240VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \
241 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
242 ../../../../vmlinux \
243 /sys/kernel/btf/vmlinux \
244 /boot/vmlinux-$(shell uname -r)
245VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
246ifeq ($(VMLINUX_BTF),)
247$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
248endif
249
250# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
251# to build individual tests.
252# NOTE: Semicolon at the end is critical to override lib.mk's default static
253# rule for binaries.
254$(notdir $(TEST_GEN_PROGS) \
255 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ;
256
257# sort removes libbpf duplicates when not cross-building
258MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \
259 $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool \
260 $(HOST_BUILD_DIR)/resolve_btfids \
261 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR))
262$(MAKE_DIRS):
263 $(call msg,MKDIR,,$@)
264 $(Q)mkdir -p $@
265
266$(OUTPUT)/%.o: %.c
267 $(call msg,CC,,$@)
268 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
269
270$(OUTPUT)/%:%.c
271 $(call msg,BINARY,,$@)
272 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@
273
274# LLVM's ld.lld doesn't support all the architectures, so use it only on x86
275ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv))
276LLD := lld
277else
278LLD := $(shell command -v $(LD))
279endif
280
281# Filter out -static for liburandom_read.so and its dependent targets so that static builds
282# do not fail. Static builds leave urandom_read relying on system-wide shared libraries.
283$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map
284 $(call msg,LIB,,$@)
285 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \
286 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \
287 $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \
288 -Wno-unused-command-line-argument \
289 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
290 -Wl,--version-script=liburandom_read.map \
291 -fPIC -shared -o $@
292
293$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so
294 $(call msg,BINARY,,$@)
295 $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \
296 $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \
297 -Wno-unused-command-line-argument \
298 -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \
299 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
300 -Wl,-rpath=. -o $@
301
302$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c
303 $(call msg,SIGN-FILE,,$@)
304 $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \
305 $< -o $@ \
306 $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
307
308$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
309 $(call msg,MOD,,$@)
310 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation
311 $(Q)$(MAKE) $(submake_extras) -C bpf_testmod \
312 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \
313 EXTRA_CFLAGS='' EXTRA_LDFLAGS=''
314 $(Q)cp bpf_testmod/bpf_testmod.ko $@
315
316$(OUTPUT)/bpf_test_no_cfi.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_no_cfi/Makefile bpf_test_no_cfi/*.[ch])
317 $(call msg,MOD,,$@)
318 $(Q)$(RM) bpf_test_no_cfi/bpf_test_no_cfi.ko # force re-compilation
319 $(Q)$(MAKE) $(submake_extras) -C bpf_test_no_cfi \
320 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \
321 EXTRA_CFLAGS='' EXTRA_LDFLAGS=''
322 $(Q)cp bpf_test_no_cfi/bpf_test_no_cfi.ko $@
323
324$(OUTPUT)/bpf_test_modorder_x.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_x/Makefile bpf_test_modorder_x/*.[ch])
325 $(call msg,MOD,,$@)
326 $(Q)$(RM) bpf_test_modorder_x/bpf_test_modorder_x.ko # force re-compilation
327 $(Q)$(MAKE) $(submake_extras) -C bpf_test_modorder_x \
328 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \
329 EXTRA_CFLAGS='' EXTRA_LDFLAGS=''
330 $(Q)cp bpf_test_modorder_x/bpf_test_modorder_x.ko $@
331
332$(OUTPUT)/bpf_test_modorder_y.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_test_modorder_y/Makefile bpf_test_modorder_y/*.[ch])
333 $(call msg,MOD,,$@)
334 $(Q)$(RM) bpf_test_modorder_y/bpf_test_modorder_y.ko # force re-compilation
335 $(Q)$(MAKE) $(submake_extras) -C bpf_test_modorder_y \
336 RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) \
337 EXTRA_CFLAGS='' EXTRA_LDFLAGS=''
338 $(Q)cp bpf_test_modorder_y/bpf_test_modorder_y.ko $@
339
340
341DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
342ifneq ($(CROSS_COMPILE),)
343CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
344TRUNNER_BPFTOOL := $(CROSS_BPFTOOL)
345USE_BOOTSTRAP := ""
346else
347TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL)
348USE_BOOTSTRAP := "bootstrap/"
349endif
350
351$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT)
352 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \
353 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \
354 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \
355 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf/ \
356 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \
357 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \
358 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' && \
359 cp $(RUNQSLOWER_OUTPUT)runqslower $@
360
361TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL)
362
363$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)
364
365TESTING_HELPERS := $(OUTPUT)/testing_helpers.o
366CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o
367UNPRIV_HELPERS := $(OUTPUT)/unpriv_helpers.o
368TRACE_HELPERS := $(OUTPUT)/trace_helpers.o
369JSON_WRITER := $(OUTPUT)/json_writer.o
370CAP_HELPERS := $(OUTPUT)/cap_helpers.o
371NETWORK_HELPERS := $(OUTPUT)/network_helpers.o
372
373$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)
374$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)
375$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)
376$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS)
377$(OUTPUT)/test_tag: $(TESTING_HELPERS)
378$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS)
379$(OUTPUT)/xdping: $(TESTING_HELPERS)
380$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS)
381$(OUTPUT)/test_maps: $(TESTING_HELPERS)
382$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS)
383$(OUTPUT)/xsk.o: $(BPFOBJ)
384
385BPFTOOL ?= $(DEFAULT_BPFTOOL)
386$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
387 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
388 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
389 ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \
390 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \
391 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \
392 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \
393 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \
394 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \
395 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin
396
397ifneq ($(CROSS_COMPILE),)
398$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
399 $(BPFOBJ) | $(BUILD_DIR)/bpftool
400 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
401 ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \
402 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \
403 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \
404 OUTPUT=$(BUILD_DIR)/bpftool/ \
405 LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \
406 LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \
407 prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin
408endif
409
410all: docs
411
412docs:
413 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \
414 -f Makefile.docs \
415 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
416
417docs-clean:
418 $(Q)$(MAKE) $(submake_extras) \
419 -f Makefile.docs \
420 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
421
422$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
423 $(APIDIR)/linux/bpf.h \
424 | $(BUILD_DIR)/libbpf
425 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
426 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \
427 EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)' \
428 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
429
430ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
431$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
432 $(APIDIR)/linux/bpf.h \
433 | $(HOST_BUILD_DIR)/libbpf
434 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \
435 ARCH= CROSS_COMPILE= \
436 EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)' \
437 EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)' \
438 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \
439 CC="$(HOSTCC)" LD="$(HOSTLD)" \
440 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
441endif
442
443# vmlinux.h is first dumped to a temprorary file and then compared to
444# the previous version. This helps to avoid unnecessary re-builds of
445# $(TRUNNER_BPF_OBJS)
446$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
447ifeq ($(VMLINUX_H),)
448 $(call msg,GEN,,$@)
449 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp
450 $(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@
451else
452 $(call msg,CP,,$@)
453 $(Q)cp "$(VMLINUX_H)" $@
454endif
455
456$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \
457 $(TOOLSDIR)/bpf/resolve_btfids/main.c \
458 $(TOOLSDIR)/lib/rbtree.c \
459 $(TOOLSDIR)/lib/zalloc.c \
460 $(TOOLSDIR)/lib/string.c \
461 $(TOOLSDIR)/lib/ctype.c \
462 $(TOOLSDIR)/lib/str_error_r.c
463 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
464 CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \
465 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \
466 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
467
468# Get Clang's default includes on this system, as opposed to those seen by
469# '--target=bpf'. This fixes "missing" files on some architectures/distros,
470# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
471#
472# Use '-idirafter': Don't interfere with include mechanics except where the
473# build would have failed anyways.
474define get_sys_includes
475$(shell $(1) $(2) -v -E - </dev/null 2>&1 \
476 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
477$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \
478$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \
479$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}')
480endef
481
482# Determine target endianness.
483IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
484 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
485MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
486BPF_TARGET_ENDIAN=$(if $(IS_LITTLE_ENDIAN),--target=bpfel,--target=bpfeb)
487
488ifneq ($(CROSS_COMPILE),)
489CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))
490endif
491
492CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
493BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \
494 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \
495 -I$(abspath $(OUTPUT)/../usr/include) \
496 -Wno-compare-distinct-pointer-types
497# TODO: enable me -Wsign-compare
498
499CLANG_CFLAGS = $(CLANG_SYS_INCLUDES)
500
501$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
502$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
503
504$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
505$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h
506
507# Build BPF object using Clang
508# $1 - input .c file
509# $2 - output .o file
510# $3 - CFLAGS
511# $4 - binary name
512define CLANG_BPF_BUILD_RULE
513 $(call msg,CLNG-BPF,$4,$2)
514 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2
515endef
516# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
517define CLANG_NOALU32_BPF_BUILD_RULE
518 $(call msg,CLNG-BPF,$4,$2)
519 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2
520endef
521# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4
522define CLANG_CPUV4_BPF_BUILD_RULE
523 $(call msg,CLNG-BPF,$4,$2)
524 $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2
525endef
526# Build BPF object using GCC
527define GCC_BPF_BUILD_RULE
528 $(call msg,GCC-BPF,$4,$2)
529 $(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2
530endef
531
532SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
533
534LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \
535 linked_vars.skel.h linked_maps.skel.h \
536 test_subskeleton.skel.h test_subskeleton_lib.skel.h \
537 test_usdt.skel.h
538
539LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \
540 trace_printk.c trace_vprintk.c map_ptr_kern.c \
541 core_kern.c core_kern_overflow.c test_ringbuf.c \
542 test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c
543
544# Generate both light skeleton and libbpf skeleton for these
545LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \
546 kfunc_call_test_subprog.c
547SKEL_BLACKLIST += $$(LSKELS)
548
549test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o
550linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o
551linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o
552linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o
553# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file
554# but that's created as a side-effect of the skel.h generation.
555test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o
556test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o
557test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o
558xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o
559xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o
560xdp_features.skel.h-deps := xdp_features.bpf.o
561
562LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps))
563LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS))
564
565HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \
566 $(addprefix $(BPFDIR)/, bpf_core_read.h \
567 bpf_endian.h \
568 bpf_helpers.h \
569 bpf_tracing.h)
570
571# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
572# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
573# Parameters:
574# $1 - test runner base binary name (e.g., test_progs)
575# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc)
576define DEFINE_TEST_RUNNER
577
578TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
579TRUNNER_BINARY := $1$(if $2,-)$2
580TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \
581 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
582TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \
583 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
584TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
585TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
586TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
587TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS))
588TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \
589 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
590 $$(TRUNNER_BPF_SRCS)))
591TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA))
592TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
593TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
594
595# Evaluate rules now with extra TRUNNER_XXX variables above already defined
596$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
597
598endef
599
600# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
601# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
602# $1 - test runner base binary name (e.g., test_progs)
603# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc)
604define DEFINE_TEST_RUNNER_RULES
605
606ifeq ($($(TRUNNER_OUTPUT)-dir),)
607$(TRUNNER_OUTPUT)-dir := y
608$(TRUNNER_OUTPUT):
609 $$(call msg,MKDIR,,$$@)
610 $(Q)mkdir -p $$@
611endif
612
613# ensure we set up BPF objects generation rule just once for a given
614# input/output directory combination
615ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
616$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
617$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \
618 $(TRUNNER_BPF_PROGS_DIR)/%.c \
619 $(TRUNNER_BPF_PROGS_DIR)/*.h \
620 $$(INCLUDE_DIR)/vmlinux.h \
621 $(HEADERS_FOR_BPF_OBJS) \
622 | $(TRUNNER_OUTPUT) $$(BPFOBJ)
623 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \
624 $(TRUNNER_BPF_CFLAGS) \
625 $$($$<-CFLAGS) \
626 $$($$<-$2-CFLAGS),$(TRUNNER_BINARY))
627
628$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
629 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
630 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
631 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
632 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
633 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
634 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@
635 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h)
636 $(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
637
638$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
639 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
640 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$<
641 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o)
642 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o)
643 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
644 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@
645 $(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
646
647$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/%
648
649# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites
650.SECONDEXPANSION:
651$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT)
652 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o))
653 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
654 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o)
655 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o)
656 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
657 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
658 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@
659 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h)
660 $(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
661
662# When the compiler generates a %.d file, only skel basenames (not
663# full paths) are specified as prerequisites for corresponding %.o
664# file. vpath directives below instruct make to search for skel files
665# in TRUNNER_OUTPUT, if they are not present in the working directory.
666vpath %.skel.h $(TRUNNER_OUTPUT)
667vpath %.lskel.h $(TRUNNER_OUTPUT)
668vpath %.subskel.h $(TRUNNER_OUTPUT)
669
670endif
671
672# ensure we set up tests.h header generation rule just once
673ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
674$(TRUNNER_TESTS_DIR)-tests-hdr := y
675$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
676 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
677 $$(shell (echo '/* Generated header, do not edit */'; \
678 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \
679 $(TRUNNER_TESTS_DIR)/*.c | sort ; \
680 ) > $$@)
681endif
682
683# compile individual test files
684# Note: we cd into output directory to ensure embedded BPF object is found
685$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
686 $(TRUNNER_TESTS_DIR)/%.c \
687 | $(TRUNNER_OUTPUT)/%.test.d
688 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
689 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
690
691$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d: \
692 $(TRUNNER_TESTS_DIR)/%.c \
693 $(TRUNNER_EXTRA_HDRS) \
694 $(TRUNNER_BPF_SKELS) \
695 $(TRUNNER_BPF_LSKELS) \
696 $(TRUNNER_BPF_SKELS_LINKED) \
697 $$(BPFOBJ) | $(TRUNNER_OUTPUT)
698
699ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),)
700include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d))
701endif
702
703# add per extra obj CFGLAGS definitions
704$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)), \
705 $(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS)))
706
707$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
708 %.c \
709 $(TRUNNER_EXTRA_HDRS) \
710 $(TRUNNER_TESTS_HDR) \
711 $$(BPFOBJ) | $(TRUNNER_OUTPUT)
712 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
713 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
714
715# non-flavored in-srctree builds receive special treatment, in particular, we
716# do not need to copy extra resources (see e.g. test_btf_dump_case())
717$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
718ifneq ($2:$(OUTPUT),:$(shell pwd))
719 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
720 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/
721endif
722
723$(OUTPUT)/$(TRUNNER_BINARY): LDLIBS += $$(LLVM_LDLIBS)
724$(OUTPUT)/$(TRUNNER_BINARY): LDFLAGS += $$(LLVM_LDFLAGS)
725
726# some X.test.o files have runtime dependencies on Y.bpf.o files
727$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS)
728
729$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \
730 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \
731 $(RESOLVE_BTFIDS) \
732 $(TRUNNER_BPFTOOL) \
733 | $(TRUNNER_BINARY)-extras
734 $$(call msg,BINARY,,$$@)
735 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LDFLAGS) -o $$@
736 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@
737 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \
738 $(OUTPUT)/$(if $2,$2/)bpftool
739
740endef
741
742# Define test_progs test runner.
743TRUNNER_TESTS_DIR := prog_tests
744TRUNNER_BPF_PROGS_DIR := progs
745TRUNNER_EXTRA_SOURCES := test_progs.c \
746 cgroup_helpers.c \
747 trace_helpers.c \
748 network_helpers.c \
749 testing_helpers.c \
750 btf_helpers.c \
751 cap_helpers.c \
752 unpriv_helpers.c \
753 netlink_helpers.c \
754 jit_disasm_helpers.c \
755 io_helpers.c \
756 test_loader.c \
757 xsk.c \
758 disasm.c \
759 disasm_helpers.c \
760 json_writer.c \
761 flow_dissector_load.h \
762 ip_check_defrag_frags.h
763TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \
764 $(OUTPUT)/bpf_test_no_cfi.ko \
765 $(OUTPUT)/bpf_test_modorder_x.ko \
766 $(OUTPUT)/bpf_test_modorder_y.ko \
767 $(OUTPUT)/liburandom_read.so \
768 $(OUTPUT)/xdp_synproxy \
769 $(OUTPUT)/sign-file \
770 $(OUTPUT)/uprobe_multi \
771 ima_setup.sh \
772 verify_sig_setup.sh \
773 $(wildcard progs/btf_dump_test_case_*.c) \
774 $(wildcard progs/*.bpf.o)
775TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
776TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
777$(eval $(call DEFINE_TEST_RUNNER,test_progs))
778
779# Define test_progs-no_alu32 test runner.
780TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
781TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
782$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
783
784# Define test_progs-cpuv4 test runner.
785ifneq ($(CLANG_CPUV4),)
786TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE
787TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
788$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4))
789endif
790
791# Define test_progs BPF-GCC-flavored test runner.
792ifneq ($(BPF_GCC),)
793TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
794TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,)
795$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
796endif
797
798# Define test_maps test runner.
799TRUNNER_TESTS_DIR := map_tests
800TRUNNER_BPF_PROGS_DIR := progs
801TRUNNER_EXTRA_SOURCES := test_maps.c
802TRUNNER_EXTRA_FILES :=
803TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
804TRUNNER_BPF_CFLAGS :=
805$(eval $(call DEFINE_TEST_RUNNER,test_maps))
806
807# Define test_verifier test runner.
808# It is much simpler than test_maps/test_progs and sufficiently different from
809# them (e.g., test.h is using completely pattern), that it's worth just
810# explicitly defining all the rules explicitly.
811verifier/tests.h: verifier/*.c
812 $(shell ( cd verifier/; \
813 echo '/* Generated header, do not edit */'; \
814 echo '#ifdef FILL_ARRAY'; \
815 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
816 echo '#endif' \
817 ) > verifier/tests.h)
818$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
819 $(call msg,BINARY,,$@)
820 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
821
822# Include find_bit.c to compile xskxceiver.
823EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c
824$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT)
825 $(call msg,BINARY,,$@)
826 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
827
828$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT)
829 $(call msg,BINARY,,$@)
830 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
831
832$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT)
833 $(call msg,BINARY,,$@)
834 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
835
836# Make sure we are able to include and link libbpf against c++.
837$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
838 $(call msg,CXX,,$@)
839 $(Q)$(CXX) $(subst -D_GNU_SOURCE=,,$(CFLAGS)) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@
840
841# Benchmark runner
842$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ)
843 $(call msg,CC,,$@)
844 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@
845$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
846$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
847$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
848 $(OUTPUT)/perfbuf_bench.skel.h
849$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h
850$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h
851$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h
852$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h
853$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h
854$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h
855$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h
856$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h
857$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h
858$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h
859$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)
860$(OUTPUT)/bench: LDLIBS += -lm
861$(OUTPUT)/bench: $(OUTPUT)/bench.o \
862 $(TESTING_HELPERS) \
863 $(TRACE_HELPERS) \
864 $(CGROUP_HELPERS) \
865 $(OUTPUT)/bench_count.o \
866 $(OUTPUT)/bench_rename.o \
867 $(OUTPUT)/bench_trigger.o \
868 $(OUTPUT)/bench_ringbufs.o \
869 $(OUTPUT)/bench_bloom_filter_map.o \
870 $(OUTPUT)/bench_bpf_loop.o \
871 $(OUTPUT)/bench_strncmp.o \
872 $(OUTPUT)/bench_bpf_hashmap_full_update.o \
873 $(OUTPUT)/bench_local_storage.o \
874 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \
875 $(OUTPUT)/bench_bpf_hashmap_lookup.o \
876 $(OUTPUT)/bench_local_storage_create.o \
877 $(OUTPUT)/bench_htab_mem.o \
878 $(OUTPUT)/bench_bpf_crypto.o \
879 #
880 $(call msg,BINARY,,$@)
881 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
882
883$(OUTPUT)/veristat.o: $(BPFOBJ)
884$(OUTPUT)/veristat: $(OUTPUT)/veristat.o
885 $(call msg,BINARY,,$@)
886 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
887
888# Linking uprobe_multi can fail due to relocation overflows on mips.
889$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot)
890$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld
891 $(call msg,BINARY,,$@)
892 $(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) \
893 $(filter-out %.ld,$^) $(LDLIBS) -o $@
894
895EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \
896 prog_tests/tests.h map_tests/tests.h verifier/tests.h \
897 feature bpftool \
898 $(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h \
899 no_alu32 cpuv4 bpf_gcc bpf_testmod.ko \
900 bpf_test_no_cfi.ko \
901 bpf_test_modorder_x.ko \
902 bpf_test_modorder_y.ko \
903 liburandom_read.so) \
904 $(OUTPUT)/FEATURE-DUMP.selftests
905
906.PHONY: docs docs-clean
907
908# Delete partially updated (corrupted) files on error
909.DELETE_ON_ERROR:
910
911DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
912override define INSTALL_RULE
913 $(DEFAULT_INSTALL_RULE)
914 @for DIR in $(TEST_INST_SUBDIRS); do \
915 mkdir -p $(INSTALL_PATH)/$$DIR; \
916 rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\
917 done
918endef
1# SPDX-License-Identifier: GPL-2.0
2include ../../../build/Build.include
3include ../../../scripts/Makefile.arch
4include ../../../scripts/Makefile.include
5
6CXX ?= $(CROSS_COMPILE)g++
7
8CURDIR := $(abspath .)
9TOOLSDIR := $(abspath ../../..)
10LIBDIR := $(TOOLSDIR)/lib
11BPFDIR := $(LIBDIR)/bpf
12TOOLSINCDIR := $(TOOLSDIR)/include
13BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
14APIDIR := $(TOOLSINCDIR)/uapi
15GENDIR := $(abspath ../../../../include/generated)
16GENHDR := $(GENDIR)/autoconf.h
17HOSTPKG_CONFIG := pkg-config
18
19ifneq ($(wildcard $(GENHDR)),)
20 GENFLAGS := -DHAVE_GENHDR
21endif
22
23BPF_GCC ?= $(shell command -v bpf-gcc;)
24SAN_CFLAGS ?=
25CFLAGS += -g -O0 -rdynamic -Wall -Werror $(GENFLAGS) $(SAN_CFLAGS) \
26 -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \
27 -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT)
28LDFLAGS += $(SAN_CFLAGS)
29LDLIBS += -lelf -lz -lrt -lpthread
30
31# Silence some warnings when compiled with clang
32ifneq ($(LLVM),)
33CFLAGS += -Wno-unused-command-line-argument
34endif
35
36# Order correspond to 'make run_tests' order
37TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
38 test_verifier_log test_dev_cgroup \
39 test_sock test_sockmap get_cgroup_id_user \
40 test_cgroup_storage \
41 test_tcpnotify_user test_sysctl \
42 test_progs-no_alu32
43
44# Also test bpf-gcc, if present
45ifneq ($(BPF_GCC),)
46TEST_GEN_PROGS += test_progs-bpf_gcc
47endif
48
49TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o
50TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c)
51
52# Order correspond to 'make run_tests' order
53TEST_PROGS := test_kmod.sh \
54 test_xdp_redirect.sh \
55 test_xdp_redirect_multi.sh \
56 test_xdp_meta.sh \
57 test_xdp_veth.sh \
58 test_offload.py \
59 test_sock_addr.sh \
60 test_tunnel.sh \
61 test_lwt_seg6local.sh \
62 test_lirc_mode2.sh \
63 test_skb_cgroup_id.sh \
64 test_flow_dissector.sh \
65 test_xdp_vlan_mode_generic.sh \
66 test_xdp_vlan_mode_native.sh \
67 test_lwt_ip_encap.sh \
68 test_tcp_check_syncookie.sh \
69 test_tc_tunnel.sh \
70 test_tc_edt.sh \
71 test_xdping.sh \
72 test_bpftool_build.sh \
73 test_bpftool.sh \
74 test_bpftool_metadata.sh \
75 test_doc_build.sh \
76 test_xsk.sh
77
78TEST_PROGS_EXTENDED := with_addr.sh \
79 with_tunnels.sh ima_setup.sh verify_sig_setup.sh \
80 test_xdp_vlan.sh test_bpftool.py
81
82# Compile but not part of 'make run_tests'
83TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
84 flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
85 test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
86 xskxceiver xdp_redirect_multi xdp_synproxy veristat
87
88TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read $(OUTPUT)/sign-file
89TEST_GEN_FILES += liburandom_read.so
90
91# Emit succinct information message describing current building step
92# $1 - generic step name (e.g., CC, LINK, etc);
93# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
94# $3 - target (assumed to be file); only file name will be emitted;
95# $4 - optional extra arg, emitted as-is, if provided.
96ifeq ($(V),1)
97Q =
98msg =
99else
100Q = @
101msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
102MAKEFLAGS += --no-print-directory
103submake_extras := feature_display=0
104endif
105
106# override lib.mk's default rules
107OVERRIDE_TARGETS := 1
108override define CLEAN
109 $(call msg,CLEAN)
110 $(Q)$(RM) -r $(TEST_GEN_PROGS)
111 $(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED)
112 $(Q)$(RM) -r $(TEST_GEN_FILES)
113 $(Q)$(RM) -r $(EXTRA_CLEAN)
114 $(Q)$(MAKE) -C bpf_testmod clean
115 $(Q)$(MAKE) docs-clean
116endef
117
118include ../lib.mk
119
120SCRATCH_DIR := $(OUTPUT)/tools
121BUILD_DIR := $(SCRATCH_DIR)/build
122INCLUDE_DIR := $(SCRATCH_DIR)/include
123BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
124ifneq ($(CROSS_COMPILE),)
125HOST_BUILD_DIR := $(BUILD_DIR)/host
126HOST_SCRATCH_DIR := $(OUTPUT)/host-tools
127HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include
128else
129HOST_BUILD_DIR := $(BUILD_DIR)
130HOST_SCRATCH_DIR := $(SCRATCH_DIR)
131HOST_INCLUDE_DIR := $(INCLUDE_DIR)
132endif
133HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
134RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
135RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/
136
137VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \
138 $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
139 ../../../../vmlinux \
140 /sys/kernel/btf/vmlinux \
141 /boot/vmlinux-$(shell uname -r)
142VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
143ifeq ($(VMLINUX_BTF),)
144$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
145endif
146
147# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
148# to build individual tests.
149# NOTE: Semicolon at the end is critical to override lib.mk's default static
150# rule for binaries.
151$(notdir $(TEST_GEN_PROGS) \
152 $(TEST_PROGS) \
153 $(TEST_PROGS_EXTENDED) \
154 $(TEST_GEN_PROGS_EXTENDED) \
155 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
156
157# sort removes libbpf duplicates when not cross-building
158MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \
159 $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \
160 $(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR))
161$(MAKE_DIRS):
162 $(call msg,MKDIR,,$@)
163 $(Q)mkdir -p $@
164
165$(OUTPUT)/%.o: %.c
166 $(call msg,CC,,$@)
167 $(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
168
169$(OUTPUT)/%:%.c
170 $(call msg,BINARY,,$@)
171 $(Q)$(LINK.c) $^ $(LDLIBS) -o $@
172
173# LLVM's ld.lld doesn't support all the architectures, so use it only on x86
174ifeq ($(SRCARCH),x86)
175LLD := lld
176else
177LLD := ld
178endif
179
180# Filter out -static for liburandom_read.so and its dependent targets so that static builds
181# do not fail. Static builds leave urandom_read relying on system-wide shared libraries.
182$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c
183 $(call msg,LIB,,$@)
184 $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $^ $(LDLIBS) \
185 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
186 -fPIC -shared -o $@
187
188$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so
189 $(call msg,BINARY,,$@)
190 $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \
191 liburandom_read.so $(LDLIBS) \
192 -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
193 -Wl,-rpath=. -o $@
194
195$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c
196 $(call msg,SIGN-FILE,,$@)
197 $(Q)$(CC) $(shell $(HOSTPKG_CONFIG)--cflags libcrypto 2> /dev/null) \
198 $< -o $@ \
199 $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
200
201$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
202 $(call msg,MOD,,$@)
203 $(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation
204 $(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod
205 $(Q)cp bpf_testmod/bpf_testmod.ko $@
206
207DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
208
209$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT)
210 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \
211 OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \
212 BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \
213 BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf \
214 BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \
215 cp $(RUNQSLOWER_OUTPUT)runqslower $@
216
217TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL)
218
219$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)
220
221CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o
222TESTING_HELPERS := $(OUTPUT)/testing_helpers.o
223TRACE_HELPERS := $(OUTPUT)/trace_helpers.o
224CAP_HELPERS := $(OUTPUT)/cap_helpers.o
225
226$(OUTPUT)/test_dev_cgroup: $(CGROUP_HELPERS) $(TESTING_HELPERS)
227$(OUTPUT)/test_skb_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS)
228$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS)
229$(OUTPUT)/test_sock_addr: $(CGROUP_HELPERS) $(TESTING_HELPERS)
230$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)
231$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)
232$(OUTPUT)/get_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS)
233$(OUTPUT)/test_cgroup_storage: $(CGROUP_HELPERS) $(TESTING_HELPERS)
234$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)
235$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS)
236$(OUTPUT)/test_tag: $(TESTING_HELPERS)
237$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS)
238$(OUTPUT)/xdping: $(TESTING_HELPERS)
239$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS)
240$(OUTPUT)/test_maps: $(TESTING_HELPERS)
241$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS)
242$(OUTPUT)/xsk.o: $(BPFOBJ)
243$(OUTPUT)/xskxceiver: $(OUTPUT)/xsk.o
244
245BPFTOOL ?= $(DEFAULT_BPFTOOL)
246$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
247 $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
248 $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
249 ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) \
250 EXTRA_CFLAGS='-g -O0' \
251 OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \
252 LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \
253 LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \
254 prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin
255
256all: docs
257
258docs:
259 $(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \
260 -f Makefile.docs \
261 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
262
263docs-clean:
264 $(Q)$(MAKE) $(submake_extras) \
265 -f Makefile.docs \
266 prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
267
268$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
269 $(APIDIR)/linux/bpf.h \
270 | $(BUILD_DIR)/libbpf
271 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
272 EXTRA_CFLAGS='-g -O0' \
273 DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
274
275ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
276$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
277 $(APIDIR)/linux/bpf.h \
278 | $(HOST_BUILD_DIR)/libbpf
279 $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \
280 EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \
281 OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \
282 DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
283endif
284
285$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
286ifeq ($(VMLINUX_H),)
287 $(call msg,GEN,,$@)
288 $(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
289else
290 $(call msg,CP,,$@)
291 $(Q)cp "$(VMLINUX_H)" $@
292endif
293
294$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \
295 $(TOOLSDIR)/bpf/resolve_btfids/main.c \
296 $(TOOLSDIR)/lib/rbtree.c \
297 $(TOOLSDIR)/lib/zalloc.c \
298 $(TOOLSDIR)/lib/string.c \
299 $(TOOLSDIR)/lib/ctype.c \
300 $(TOOLSDIR)/lib/str_error_r.c
301 $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
302 CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \
303 LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \
304 OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
305
306# Get Clang's default includes on this system, as opposed to those seen by
307# '-target bpf'. This fixes "missing" files on some architectures/distros,
308# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
309#
310# Use '-idirafter': Don't interfere with include mechanics except where the
311# build would have failed anyways.
312define get_sys_includes
313$(shell $(1) $(2) -v -E - </dev/null 2>&1 \
314 | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
315$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')
316endef
317
318# Determine target endianness.
319IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
320 grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
321MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
322
323ifneq ($(CROSS_COMPILE),)
324CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))
325endif
326
327CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
328BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \
329 -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \
330 -I$(abspath $(OUTPUT)/../usr/include)
331
332CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
333 -Wno-compare-distinct-pointer-types
334
335$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
336$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
337
338$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
339$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h
340
341# Build BPF object using Clang
342# $1 - input .c file
343# $2 - output .o file
344# $3 - CFLAGS
345define CLANG_BPF_BUILD_RULE
346 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
347 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v3 -o $2
348endef
349# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
350define CLANG_NOALU32_BPF_BUILD_RULE
351 $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
352 $(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v2 -o $2
353endef
354# Build BPF object using GCC
355define GCC_BPF_BUILD_RULE
356 $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
357 $(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2
358endef
359
360SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
361
362LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \
363 linked_vars.skel.h linked_maps.skel.h \
364 test_subskeleton.skel.h test_subskeleton_lib.skel.h \
365 test_usdt.skel.h
366
367LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \
368 trace_printk.c trace_vprintk.c map_ptr_kern.c \
369 core_kern.c core_kern_overflow.c test_ringbuf.c \
370 test_ringbuf_map_key.c
371
372# Generate both light skeleton and libbpf skeleton for these
373LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \
374 kfunc_call_test_subprog.c
375SKEL_BLACKLIST += $$(LSKELS)
376
377test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o
378linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o
379linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o
380linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o
381# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file
382# but that's created as a side-effect of the skel.h generation.
383test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o
384test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o
385test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o
386
387LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps)))
388
389# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
390# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
391# Parameters:
392# $1 - test runner base binary name (e.g., test_progs)
393# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
394define DEFINE_TEST_RUNNER
395
396TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
397TRUNNER_BINARY := $1$(if $2,-)$2
398TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \
399 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
400TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \
401 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
402TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
403TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
404TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
405TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS))
406TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \
407 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
408 $$(TRUNNER_BPF_SRCS)))
409TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA))
410TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
411TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
412
413# Evaluate rules now with extra TRUNNER_XXX variables above already defined
414$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
415
416endef
417
418# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
419# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
420# $1 - test runner base binary name (e.g., test_progs)
421# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
422define DEFINE_TEST_RUNNER_RULES
423
424ifeq ($($(TRUNNER_OUTPUT)-dir),)
425$(TRUNNER_OUTPUT)-dir := y
426$(TRUNNER_OUTPUT):
427 $$(call msg,MKDIR,,$$@)
428 $(Q)mkdir -p $$@
429endif
430
431# ensure we set up BPF objects generation rule just once for a given
432# input/output directory combination
433ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
434$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
435$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \
436 $(TRUNNER_BPF_PROGS_DIR)/%.c \
437 $(TRUNNER_BPF_PROGS_DIR)/*.h \
438 $$(INCLUDE_DIR)/vmlinux.h \
439 $(wildcard $(BPFDIR)/bpf_*.h) \
440 $(wildcard $(BPFDIR)/*.bpf.h) \
441 | $(TRUNNER_OUTPUT) $$(BPFOBJ)
442 $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \
443 $(TRUNNER_BPF_CFLAGS))
444
445$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
446 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
447 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
448 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
449 $(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
450 $(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
451 $(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@
452 $(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h)
453
454$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
455 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
456 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$<
457 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o)
458 $(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o)
459 $(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
460 $(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@
461
462$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT)
463 $$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o))
464 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
465 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o)
466 $(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o)
467 $(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
468 $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
469 $(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@
470 $(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h)
471endif
472
473# ensure we set up tests.h header generation rule just once
474ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
475$(TRUNNER_TESTS_DIR)-tests-hdr := y
476$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
477 $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
478 $$(shell (echo '/* Generated header, do not edit */'; \
479 sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \
480 $(TRUNNER_TESTS_DIR)/*.c | sort ; \
481 ) > $$@)
482endif
483
484# compile individual test files
485# Note: we cd into output directory to ensure embedded BPF object is found
486$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
487 $(TRUNNER_TESTS_DIR)/%.c \
488 $(TRUNNER_EXTRA_HDRS) \
489 $(TRUNNER_BPF_OBJS) \
490 $(TRUNNER_BPF_SKELS) \
491 $(TRUNNER_BPF_LSKELS) \
492 $(TRUNNER_BPF_SKELS_LINKED) \
493 $$(BPFOBJ) | $(TRUNNER_OUTPUT)
494 $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
495 $(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
496
497$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
498 %.c \
499 $(TRUNNER_EXTRA_HDRS) \
500 $(TRUNNER_TESTS_HDR) \
501 $$(BPFOBJ) | $(TRUNNER_OUTPUT)
502 $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
503 $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
504
505# non-flavored in-srctree builds receive special treatment, in particular, we
506# do not need to copy extra resources (see e.g. test_btf_dump_case())
507$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
508ifneq ($2:$(OUTPUT),:$(shell pwd))
509 $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
510 $(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/
511endif
512
513$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \
514 $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \
515 $(RESOLVE_BTFIDS) \
516 | $(TRUNNER_BINARY)-extras
517 $$(call msg,BINARY,,$$@)
518 $(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
519 $(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@
520 $(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/bootstrap/bpftool $(if $2,$2/)bpftool
521
522endef
523
524# Define test_progs test runner.
525TRUNNER_TESTS_DIR := prog_tests
526TRUNNER_BPF_PROGS_DIR := progs
527TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \
528 network_helpers.c testing_helpers.c \
529 btf_helpers.c flow_dissector_load.h \
530 cap_helpers.c test_loader.c
531TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \
532 $(OUTPUT)/liburandom_read.so \
533 $(OUTPUT)/xdp_synproxy \
534 $(OUTPUT)/sign-file \
535 ima_setup.sh \
536 verify_sig_setup.sh \
537 $(wildcard progs/btf_dump_test_case_*.c) \
538 $(wildcard progs/*.bpf.o)
539TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
540TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
541$(eval $(call DEFINE_TEST_RUNNER,test_progs))
542
543# Define test_progs-no_alu32 test runner.
544TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
545TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
546$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
547
548# Define test_progs BPF-GCC-flavored test runner.
549ifneq ($(BPF_GCC),)
550TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
551TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,)
552$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
553endif
554
555# Define test_maps test runner.
556TRUNNER_TESTS_DIR := map_tests
557TRUNNER_BPF_PROGS_DIR := progs
558TRUNNER_EXTRA_SOURCES := test_maps.c
559TRUNNER_EXTRA_FILES :=
560TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
561TRUNNER_BPF_CFLAGS :=
562$(eval $(call DEFINE_TEST_RUNNER,test_maps))
563
564# Define test_verifier test runner.
565# It is much simpler than test_maps/test_progs and sufficiently different from
566# them (e.g., test.h is using completely pattern), that it's worth just
567# explicitly defining all the rules explicitly.
568verifier/tests.h: verifier/*.c
569 $(shell ( cd verifier/; \
570 echo '/* Generated header, do not edit */'; \
571 echo '#ifdef FILL_ARRAY'; \
572 ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
573 echo '#endif' \
574 ) > verifier/tests.h)
575$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
576 $(call msg,BINARY,,$@)
577 $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
578
579# Make sure we are able to include and link libbpf against c++.
580$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
581 $(call msg,CXX,,$@)
582 $(Q)$(CXX) $(CFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@
583
584# Benchmark runner
585$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ)
586 $(call msg,CC,,$@)
587 $(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@
588$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
589$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
590$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
591 $(OUTPUT)/perfbuf_bench.skel.h
592$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h
593$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h
594$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h
595$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h
596$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h
597$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h
598$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)
599$(OUTPUT)/bench: LDLIBS += -lm
600$(OUTPUT)/bench: $(OUTPUT)/bench.o \
601 $(TESTING_HELPERS) \
602 $(TRACE_HELPERS) \
603 $(OUTPUT)/bench_count.o \
604 $(OUTPUT)/bench_rename.o \
605 $(OUTPUT)/bench_trigger.o \
606 $(OUTPUT)/bench_ringbufs.o \
607 $(OUTPUT)/bench_bloom_filter_map.o \
608 $(OUTPUT)/bench_bpf_loop.o \
609 $(OUTPUT)/bench_strncmp.o \
610 $(OUTPUT)/bench_bpf_hashmap_full_update.o \
611 $(OUTPUT)/bench_local_storage.o \
612 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o
613 $(call msg,BINARY,,$@)
614 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
615
616$(OUTPUT)/veristat.o: $(BPFOBJ)
617$(OUTPUT)/veristat: $(OUTPUT)/veristat.o
618 $(call msg,BINARY,,$@)
619 $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
620
621EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \
622 prog_tests/tests.h map_tests/tests.h verifier/tests.h \
623 feature bpftool \
624 $(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h *.subskel.h \
625 no_alu32 bpf_gcc bpf_testmod.ko \
626 liburandom_read.so)
627
628.PHONY: docs docs-clean