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