[linux-2.6-block.git] / tools / testing / selftests / bpf / Makefile

# SPDX-License-Identifier: GPL-2.0
include ../../../../scripts/Kbuild.include
include ../../../scripts/Makefile.arch

CXX ?= $(CROSS_COMPILE)g++

CURDIR := $(abspath .)
TOOLSDIR := $(abspath ../../..)
LIBDIR := $(TOOLSDIR)/lib
BPFDIR := $(LIBDIR)/bpf
TOOLSINCDIR := $(TOOLSDIR)/include
BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
APIDIR := $(TOOLSINCDIR)/uapi
GENDIR := $(abspath ../../../../include/generated)
GENHDR := $(GENDIR)/autoconf.h

ifneq ($(wildcard $(GENHDR)),)
  GENFLAGS := -DHAVE_GENHDR
endif

CLANG		?= clang
LLC		?= llc
LLVM_OBJCOPY	?= llvm-objcopy
BPF_GCC		?= $(shell command -v bpf-gcc;)
SAN_CFLAGS	?=
CFLAGS += -g -rdynamic -Wall -O2 $(GENFLAGS) $(SAN_CFLAGS)		\
	  -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)		\
	  -I$(TOOLSINCDIR) -I$(APIDIR)					\
	  -Dbpf_prog_load=bpf_prog_test_load				\
	  -Dbpf_load_program=bpf_test_load_program
LDLIBS += -lcap -lelf -lz -lrt -lpthread

# Order correspond to 'make run_tests' order
TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
	test_verifier_log test_dev_cgroup test_tcpbpf_user \
	test_sock test_sockmap get_cgroup_id_user test_socket_cookie \
	test_cgroup_storage \
	test_netcnt test_tcpnotify_user test_sock_fields test_sysctl \
	test_progs-no_alu32 \
	test_current_pid_tgid_new_ns

# Also test bpf-gcc, if present
ifneq ($(BPF_GCC),)
TEST_GEN_PROGS += test_progs-bpf_gcc
endif

TEST_GEN_FILES =
TEST_FILES = test_lwt_ip_encap.o \
	test_tc_edt.o

# Order correspond to 'make run_tests' order
TEST_PROGS := test_kmod.sh \
	test_xdp_redirect.sh \
	test_xdp_meta.sh \
	test_xdp_veth.sh \
	test_offload.py \
	test_sock_addr.sh \
	test_tunnel.sh \
	test_lwt_seg6local.sh \
	test_lirc_mode2.sh \
	test_skb_cgroup_id.sh \
	test_flow_dissector.sh \
	test_xdp_vlan_mode_generic.sh \
	test_xdp_vlan_mode_native.sh \
	test_lwt_ip_encap.sh \
	test_tcp_check_syncookie.sh \
	test_tc_tunnel.sh \
	test_tc_edt.sh \
	test_xdping.sh \
	test_bpftool_build.sh \
	test_bpftool.sh \
	test_bpftool_metadata.sh \

TEST_PROGS_EXTENDED := with_addr.sh \
	with_tunnels.sh \
	tcp_client.py \
	tcp_server.py \
	test_xdp_vlan.sh

# Compile but not part of 'make run_tests'
TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
	flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
	test_lirc_mode2_user xdping test_cpp runqslower bench

TEST_CUSTOM_PROGS = urandom_read

# Emit succinct information message describing current building step
# $1 - generic step name (e.g., CC, LINK, etc);
# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
# $3 - target (assumed to be file); only file name will be emitted;
# $4 - optional extra arg, emitted as-is, if provided.
ifeq ($(V),1)
Q =
msg =
else
Q = @
msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
MAKEFLAGS += --no-print-directory
submake_extras := feature_display=0
endif

# override lib.mk's default rules
OVERRIDE_TARGETS := 1
override define CLEAN
	$(call msg,CLEAN)
	$(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
endef

include ../lib.mk

SCRATCH_DIR := $(OUTPUT)/tools
BUILD_DIR := $(SCRATCH_DIR)/build
INCLUDE_DIR := $(SCRATCH_DIR)/include
BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
RESOLVE_BTFIDS := $(BUILD_DIR)/resolve_btfids/resolve_btfids

# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
# to build individual tests.
# NOTE: Semicolon at the end is critical to override lib.mk's default static
# rule for binaries.
$(notdir $(TEST_GEN_PROGS)						\
	 $(TEST_PROGS)							\
	 $(TEST_PROGS_EXTENDED)						\
	 $(TEST_GEN_PROGS_EXTENDED)					\
	 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;

$(OUTPUT)/%.o: %.c
	$(call msg,CC,,$@)
	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@

$(OUTPUT)/%:%.c
	$(call msg,BINARY,,$@)
	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@

$(OUTPUT)/urandom_read: urandom_read.c
	$(call msg,BINARY,,$@)
	$(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id

$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
	$(call msg,CC,,$@)
	$(Q)$(CC) -c $(CFLAGS) -o $@ $<

VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\
		     ../../../../vmlinux				\
		     /sys/kernel/btf/vmlinux				\
		     /boot/vmlinux-$(shell uname -r)
VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))

DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool

$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower	\
		    OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF)   \
		    BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) &&	\
		    cp $(SCRATCH_DIR)/runqslower $@

$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ)

$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
$(OUTPUT)/test_sock: cgroup_helpers.c
$(OUTPUT)/test_sock_addr: cgroup_helpers.c
$(OUTPUT)/test_socket_cookie: cgroup_helpers.c
$(OUTPUT)/test_sockmap: cgroup_helpers.c
$(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c
$(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
$(OUTPUT)/test_netcnt: cgroup_helpers.c
$(OUTPUT)/test_sock_fields: cgroup_helpers.c
$(OUTPUT)/test_sysctl: cgroup_helpers.c

BPFTOOL ?= $(DEFAULT_BPFTOOL)
$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
		    $(BPFOBJ) | $(BUILD_DIR)/bpftool
	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)			       \
		    OUTPUT=$(BUILD_DIR)/bpftool/			       \
		    prefix= DESTDIR=$(SCRATCH_DIR)/ install
	$(Q)mkdir -p $(BUILD_DIR)/bpftool/Documentation
	$(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras)	       \
		    -C $(BPFTOOLDIR)/Documentation			       \
		    OUTPUT=$(BUILD_DIR)/bpftool/Documentation/		       \
		    prefix= DESTDIR=$(SCRATCH_DIR)/ install

$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
	   ../../../include/uapi/linux/bpf.h                                   \
	   | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers

$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR):
	$(call msg,MKDIR,,$@)
	$(Q)mkdir -p $@

$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
ifeq ($(VMLINUX_H),)
	$(call msg,GEN,,$@)
	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
else
	$(call msg,CP,,$@)
	$(Q)cp "$(VMLINUX_H)" $@
endif

$(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids	\
		       $(TOOLSDIR)/bpf/resolve_btfids/main.c	\
		       $(TOOLSDIR)/lib/rbtree.c			\
		       $(TOOLSDIR)/lib/zalloc.c			\
		       $(TOOLSDIR)/lib/string.c			\
		       $(TOOLSDIR)/lib/ctype.c			\
		       $(TOOLSDIR)/lib/str_error_r.c
	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids	\
		OUTPUT=$(BUILD_DIR)/resolve_btfids/ BPFOBJ=$(BPFOBJ)

# Get Clang's default includes on this system, as opposed to those seen by
# '-target bpf'. This fixes "missing" files on some architectures/distros,
# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
#
# Use '-idirafter': Don't interfere with include mechanics except where the
# build would have failed anyways.
define get_sys_includes
$(shell $(1) -v -E - </dev/null 2>&1 \
	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
endef

# Determine target endianness.
IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
			grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)

CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) 			\
	     -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)			\
	     -I$(abspath $(OUTPUT)/../usr/include)

CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
	       -Wno-compare-distinct-pointer-types

$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline

$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h

# Build BPF object using Clang
# $1 - input .c file
# $2 - output .o file
# $3 - CFLAGS
# $4 - LDFLAGS
define CLANG_BPF_BUILD_RULE
	$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
	$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm			\
		-c $1 -o - || echo "BPF obj compilation failed") | 	\
	$(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
define CLANG_NOALU32_BPF_BUILD_RULE
	$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
	$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm			\
		-c $1 -o - || echo "BPF obj compilation failed") | 	\
	$(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
define CLANG_NATIVE_BPF_BUILD_RULE
	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
	$(Q)($(CLANG) $3 -O2 -emit-llvm					\
		-c $1 -o - || echo "BPF obj compilation failed") | 	\
	$(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
endef
# Build BPF object using GCC
define GCC_BPF_BUILD_RULE
	$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
	$(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
endef

SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c

# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
# Parameters:
# $1 - test runner base binary name (e.g., test_progs)
# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
define DEFINE_TEST_RUNNER

TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
TRUNNER_BINARY := $1$(if $2,-)$2
TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o,	\
				 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,		\
				 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS))
TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,	\
				 $$(filter-out $(SKEL_BLACKLIST),	\
					       $$(TRUNNER_BPF_SRCS)))
TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)

# Evaluate rules now with extra TRUNNER_XXX variables above already defined
$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))

endef

# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
# $1 - test runner base binary name (e.g., test_progs)
# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
define DEFINE_TEST_RUNNER_RULES

ifeq ($($(TRUNNER_OUTPUT)-dir),)
$(TRUNNER_OUTPUT)-dir := y
$(TRUNNER_OUTPUT):
	$$(call msg,MKDIR,,$$@)
	$(Q)mkdir -p $$@
endif

# ensure we set up BPF objects generation rule just once for a given
# input/output directory combination
ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
		     $(TRUNNER_BPF_PROGS_DIR)/%.c			\
		     $(TRUNNER_BPF_PROGS_DIR)/*.h			\
		     $$(INCLUDE_DIR)/vmlinux.h				\
		     $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT)
	$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,			\
					  $(TRUNNER_BPF_CFLAGS),	\
					  $(TRUNNER_BPF_LDFLAGS))

$(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h:			\
		      $(TRUNNER_OUTPUT)/%.o				\
		      | $(BPFTOOL) $(TRUNNER_OUTPUT)
	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
	$(Q)$$(BPFTOOL) gen skeleton $$< > $$@
endif

# ensure we set up tests.h header generation rule just once
ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
$(TRUNNER_TESTS_DIR)-tests-hdr := y
$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
	$$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
	$$(shell ( cd $(TRUNNER_TESTS_DIR);				\
		  echo '/* Generated header, do not edit */';		\
		  ls *.c 2> /dev/null |					\
			sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@';	\
		 ) > $$@)
endif

# compile individual test files
# Note: we cd into output directory to ensure embedded BPF object is found
$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:			\
		      $(TRUNNER_TESTS_DIR)/%.c				\
		      $(TRUNNER_EXTRA_HDRS)				\
		      $(TRUNNER_BPF_OBJS)				\
		      $(TRUNNER_BPF_SKELS)				\
		      $$(BPFOBJ) | $(TRUNNER_OUTPUT)
	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
	$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)

$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
		       %.c						\
		       $(TRUNNER_EXTRA_HDRS)				\
		       $(TRUNNER_TESTS_HDR)				\
		       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
	$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
	$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@

# only copy extra resources if in flavored build
$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
ifneq ($2,)
	$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
	$(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
endif

$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)			\
			     $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)		\
			     $(RESOLVE_BTFIDS)				\
			     | $(TRUNNER_BINARY)-extras
	$$(call msg,BINARY,,$$@)
	$(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
	$(Q)$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@

endef

# Define test_progs test runner.
TRUNNER_TESTS_DIR := prog_tests
TRUNNER_BPF_PROGS_DIR := progs
TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c	\
			 network_helpers.c testing_helpers.c		\
			 flow_dissector_load.h
TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read				\
		       $(wildcard progs/btf_dump_test_case_*.c)
TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
TRUNNER_BPF_LDFLAGS := -mattr=+alu32
$(eval $(call DEFINE_TEST_RUNNER,test_progs))

# Define test_progs-no_alu32 test runner.
TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
TRUNNER_BPF_LDFLAGS :=
$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))

# Define test_progs BPF-GCC-flavored test runner.
ifneq ($(BPF_GCC),)
TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc)
TRUNNER_BPF_LDFLAGS :=
$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
endif

# Define test_maps test runner.
TRUNNER_TESTS_DIR := map_tests
TRUNNER_BPF_PROGS_DIR := progs
TRUNNER_EXTRA_SOURCES := test_maps.c
TRUNNER_EXTRA_FILES :=
TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
TRUNNER_BPF_CFLAGS :=
TRUNNER_BPF_LDFLAGS :=
$(eval $(call DEFINE_TEST_RUNNER,test_maps))

# Define test_verifier test runner.
# It is much simpler than test_maps/test_progs and sufficiently different from
# them (e.g., test.h is using completely pattern), that it's worth just
# explicitly defining all the rules explicitly.
verifier/tests.h: verifier/*.c
	$(shell ( cd verifier/; \
		  echo '/* Generated header, do not edit */'; \
		  echo '#ifdef FILL_ARRAY'; \
		  ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
		  echo '#endif' \
		) > verifier/tests.h)
$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
	$(call msg,BINARY,,$@)
	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@

# Make sure we are able to include and link libbpf against c++.
$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
	$(call msg,CXX,,$@)
	$(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@

# Benchmark runner
$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
	$(call msg,CC,,$@)
	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
			    $(OUTPUT)/perfbuf_bench.skel.h
$(OUTPUT)/bench.o: bench.h testing_helpers.h
$(OUTPUT)/bench: LDLIBS += -lm
$(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
		 $(OUTPUT)/bench_count.o \
		 $(OUTPUT)/bench_rename.o \
		 $(OUTPUT)/bench_trigger.o \
		 $(OUTPUT)/bench_ringbufs.o
	$(call msg,BINARY,,$@)
	$(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)

EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR)			\
	prog_tests/tests.h map_tests/tests.h verifier/tests.h		\
	feature								\
	$(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc)
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
9cae4ace	2	include ../../../../scripts/Kbuild.include
748e50c1	3	include ../../../scripts/Makefile.arch
618e165b	4
e7ad28e6 IL	5	CXX ?= $(CROSS_COMPILE)g++
e7ad28e6 IL	6
74b5a596	7	CURDIR := $(abspath .)
f3c926a4 AN	8	TOOLSDIR := $(abspath ../../..)
f3c926a4 AN	9	LIBDIR := $(TOOLSDIR)/lib
e8f1f34a	10	BPFDIR := $(LIBDIR)/bpf
f3c926a4 AN	11	TOOLSINCDIR := $(TOOLSDIR)/include
	12	BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
	13	APIDIR := $(TOOLSINCDIR)/uapi
74b5a596	14	GENDIR := $(abspath ../../../../include/generated)
02ea80b1	15	GENHDR := $(GENDIR)/autoconf.h
d498f871	16
02ea80b1 DB	17	ifneq ($(wildcard $(GENHDR)),)
	18	GENFLAGS := -DHAVE_GENHDR
	19	endif
	20
3ef84346 JW	21	CLANG ?= clang
	22	LLC ?= llc
	23	LLVM_OBJCOPY ?= llvm-objcopy
4ce150b6	24	BPF_GCC ?= $(shell command -v bpf-gcc;)
02995dd4 AN	25	SAN_CFLAGS ?=
	26	CFLAGS += -g -rdynamic -Wall -O2 $(GENFLAGS) $(SAN_CFLAGS) \
	27	-I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \
	28	-I$(TOOLSINCDIR) -I$(APIDIR) \
74b5a596	29	-Dbpf_prog_load=bpf_prog_test_load \
9d120b41	30	-Dbpf_load_program=bpf_test_load_program
166750bc	31	LDLIBS += -lcap -lelf -lz -lrt -lpthread
5aa5bd14	32
f09b2e38	33	# Order correspond to 'make run_tests' order
18b3ad90	34	TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
5597432d	35	test_verifier_log test_dev_cgroup test_tcpbpf_user \
c64779e2	36	test_sock test_sockmap get_cgroup_id_user test_socket_cookie \
415bb4e1	37	test_cgroup_storage \
42fce2cf	38	test_netcnt test_tcpnotify_user test_sock_fields test_sysctl \
1c1052e0 CN	39	test_progs-no_alu32 \
1c1052e0 CN	40	test_current_pid_tgid_new_ns
3ef84346	41
74b5a596	42	# Also test bpf-gcc, if present
4ce150b6	43	ifneq ($(BPF_GCC),)
74b5a596	44	TEST_GEN_PROGS += test_progs-bpf_gcc
4ce150b6 IL	45	endif
4ce150b6 IL	46
74b5a596	47	TEST_GEN_FILES =
e47a1799 AR	48	TEST_FILES = test_lwt_ip_encap.o \
e47a1799 AR	49	test_tc_edt.o
74b5a596	50
f09b2e38 JDB	51	# Order correspond to 'make run_tests' order
f09b2e38 JDB	52	TEST_PROGS := test_kmod.sh \
f09b2e38 JDB	53	test_xdp_redirect.sh \
f09b2e38 JDB	54	test_xdp_meta.sh \
88091ff5	55	test_xdp_veth.sh \
622adafb	56	test_offload.py \
933a741e	57	test_sock_addr.sh \
c99a84ea	58	test_tunnel.sh \
6bdd533c	59	test_lwt_seg6local.sh \
5ecd8c22	60	test_lirc_mode2.sh \
50b3ed57	61	test_skb_cgroup_id.sh \
97396ff0	62	test_flow_dissector.sh \
d35661fc JDB	63	test_xdp_vlan_mode_generic.sh \
d35661fc JDB	64	test_xdp_vlan_mode_native.sh \
bafc0ba8	65	test_lwt_ip_encap.sh \
98cdabcd	66	test_tcp_check_syncookie.sh \
7df5e3db	67	test_tc_tunnel.sh \
cd538502	68	test_tc_edt.sh \
45c5589d	69	test_xdping.sh \
73633274	70	test_bpftool_build.sh \
d42d1cc4 YZ	71	test_bpftool.sh \
d42d1cc4 YZ	72	test_bpftool_metadata.sh \
5aa5bd14	73
f98937c6	74	TEST_PROGS_EXTENDED := with_addr.sh \
1be72f29	75	with_tunnels.sh \
f98937c6	76	tcp_client.py \
3035bb72 AR	77	tcp_server.py \
3035bb72 AR	78	test_xdp_vlan.sh
ef4ab844	79
f09b2e38	80	# Compile but not part of 'make run_tests'
cb79a4e1	81	TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
25a7991c	82	flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
8e7c2a02	83	test_lirc_mode2_user xdping test_cpp runqslower bench
f09b2e38	84
74b5a596 AN	85	TEST_CUSTOM_PROGS = urandom_read
74b5a596 AN	86
92f7440e AN	87	# Emit succinct information message describing current building step
	88	# $1 - generic step name (e.g., CC, LINK, etc);
	89	# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
	90	# $3 - target (assumed to be file); only file name will be emitted;
	91	# $4 - optional extra arg, emitted as-is, if provided.
	92	ifeq ($(V),1)
965b9fee	93	Q =
92f7440e AN	94	msg =
92f7440e AN	95	else
965b9fee	96	Q = @
2cc51d34	97	msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
965b9fee	98	MAKEFLAGS += --no-print-directory
2cc51d34	99	submake_extras := feature_display=0
92f7440e AN	100	endif
	101
	102	# override lib.mk's default rules
	103	OVERRIDE_TARGETS := 1
	104	override define CLEAN
2cc51d34	105	$(call msg,CLEAN)
d5ca5905	106	$(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
92f7440e AN	107	endef
92f7440e AN	108
e8f1f34a ZSL	109	include ../lib.mk
e8f1f34a ZSL	110
a2c9652f THJ	111	SCRATCH_DIR := $(OUTPUT)/tools
	112	BUILD_DIR := $(SCRATCH_DIR)/build
	113	INCLUDE_DIR := $(SCRATCH_DIR)/include
	114	BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
cc15a20d	115	RESOLVE_BTFIDS := $(BUILD_DIR)/resolve_btfids/resolve_btfids
a2c9652f	116
03dcb784 AN	117	# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
	118	# to build individual tests.
	119	# NOTE: Semicolon at the end is critical to override lib.mk's default static
	120	# rule for binaries.
	121	$(notdir $(TEST_GEN_PROGS) \
	122	$(TEST_PROGS) \
	123	$(TEST_PROGS_EXTENDED) \
	124	$(TEST_GEN_PROGS_EXTENDED) \
	125	$(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
	126
d5ca5905 AN	127	$(OUTPUT)/%.o: %.c
	128	$(call msg,CC,,$@)
	129	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
	130
92f7440e	131	$(OUTPUT)/%:%.c
2cc51d34	132	$(call msg,BINARY,,$@)
d5ca5905	133	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
92f7440e	134
74b5a596	135	$(OUTPUT)/urandom_read: urandom_read.c
2cc51d34	136	$(call msg,BINARY,,$@)
d5ca5905	137	$(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
3ef84346	138
a2c9652f	139	$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
2cc51d34	140	$(call msg,CC,,$@)
d5ca5905	141	$(Q)$(CC) -c $(CFLAGS) -o $@ $<
e93d9918	142
ca4db638	143	VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \
cc6fa771 AN	144	$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
	145	../../../../vmlinux \
	146	/sys/kernel/btf/vmlinux \
	147	/boot/vmlinux-$(shell uname -r)
ca4db638	148	VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
cc6fa771	149
6bcaf41f AN	150	DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
	151
	152	$(OUTPUT)/runqslower: $(BPFOBJ) \| $(DEFAULT_BPFTOOL)
bfe42797	153	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \
a2c9652f	154	OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \
b26d1e2b VK	155	BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \
b26d1e2b VK	156	cp $(SCRATCH_DIR)/runqslower $@
e8f1f34a	157
74b5a596	158	$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ)
f09b2e38	159
41757dcb	160	$(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
5ecd8c22	161	$(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
1d436885	162	$(OUTPUT)/test_sock: cgroup_helpers.c
e50b0a6f	163	$(OUTPUT)/test_sock_addr: cgroup_helpers.c
194db0d9	164	$(OUTPUT)/test_socket_cookie: cgroup_helpers.c
16962b24	165	$(OUTPUT)/test_sockmap: cgroup_helpers.c
c65267e5	166	$(OUTPUT)/test_tcpbpf_user: cgroup_helpers.c
435f90a3	167	$(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
f269099a	168	$(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
68cfa3ac	169	$(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
371e4fcc	170	$(OUTPUT)/test_netcnt: cgroup_helpers.c
e0b27b3f	171	$(OUTPUT)/test_sock_fields: cgroup_helpers.c
1f5fa9ab	172	$(OUTPUT)/test_sysctl: cgroup_helpers.c
41757dcb	173
f3c926a4	174	BPFTOOL ?= $(DEFAULT_BPFTOOL)
03506297 AN	175	$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
	176	$(BPFOBJ) \| $(BUILD_DIR)/bpftool
	177	$(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
	178	OUTPUT=$(BUILD_DIR)/bpftool/ \
a2c9652f	179	prefix= DESTDIR=$(SCRATCH_DIR)/ install
41d5c37b QM	180	$(Q)mkdir -p $(BUILD_DIR)/bpftool/Documentation
	181	$(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \
	182	-C $(BPFTOOLDIR)/Documentation \
	183	OUTPUT=$(BUILD_DIR)/bpftool/Documentation/ \
	184	prefix= DESTDIR=$(SCRATCH_DIR)/ install
f3c926a4	185
03506297	186	$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
a2c9652f THJ	187	../../../include/uapi/linux/bpf.h \
	188	\| $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
	189	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
03506297	190	DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
6882804c	191
cc15a20d	192	$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR):
a2c9652f	193	$(call msg,MKDIR,,$@)
d5ca5905	194	$(Q)mkdir -p $@
74b5a596	195
acbd0620	196	$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) \| $(BPFTOOL) $(INCLUDE_DIR)
ca4db638	197	ifeq ($(VMLINUX_H),)
acbd0620	198	$(call msg,GEN,,$@)
d5ca5905	199	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
ca4db638 AN	200	else
ca4db638 AN	201	$(call msg,CP,,$@)
d5ca5905	202	$(Q)cp "$(VMLINUX_H)" $@
ca4db638	203	endif
acbd0620	204
cc15a20d JO	205	$(RESOLVE_BTFIDS): $(BPFOBJ) \| $(BUILD_DIR)/resolve_btfids \
	206	$(TOOLSDIR)/bpf/resolve_btfids/main.c \
	207	$(TOOLSDIR)/lib/rbtree.c \
	208	$(TOOLSDIR)/lib/zalloc.c \
	209	$(TOOLSDIR)/lib/string.c \
	210	$(TOOLSDIR)/lib/ctype.c \
	211	$(TOOLSDIR)/lib/str_error_r.c
	212	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
	213	OUTPUT=$(BUILD_DIR)/resolve_btfids/ BPFOBJ=$(BPFOBJ)
	214
167381f3 SB	215	# Get Clang's default includes on this system, as opposed to those seen by
	216	# '-target bpf'. This fixes "missing" files on some architectures/distros,
	217	# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
	218	#
	219	# Use '-idirafter': Don't interfere with include mechanics except where the
	220	# build would have failed anyways.
4ce150b6 IL	221	define get_sys_includes
4ce150b6 IL	222	$(shell $(1) -v -E - </dev/null 2>&1 \
167381f3	223	\| sed -n '/<...> search starts here:/,/End of search list./{ s\| \(/.*\)\|-idirafter \1\|p }')
4ce150b6	224	endef
74b5a596	225
313e7f6f IL	226	# Determine target endianness.
	227	IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null \| \
	228	grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
	229	MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
	230
4ce150b6	231	CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
313e7f6f	232	BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \
bcd66b10 TK	233	-I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \
bcd66b10 TK	234	-I$(abspath $(OUTPUT)/../usr/include)
167381f3	235
4ce150b6 IL	236	CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
4ce150b6 IL	237	-Wno-compare-distinct-pointer-types
3bc35c63	238
4ce150b6 IL	239	$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
4ce150b6 IL	240	$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
3bc35c63	241
bf0f0fd9	242	$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
bf0f0fd9	243
74b5a596 AN	244	# Build BPF object using Clang
	245	# $1 - input .c file
	246	# $2 - output .o file
	247	# $3 - CFLAGS
	248	# $4 - LDFLAGS
	249	define CLANG_BPF_BUILD_RULE
2cc51d34	250	$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
d5ca5905	251	$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \
74b5a596	252	-c $1 -o - \|\| echo "BPF obj compilation failed") \| \
83250f2b	253	$(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
74b5a596	254	endef
24f65050 AN	255	# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
24f65050 AN	256	define CLANG_NOALU32_BPF_BUILD_RULE
2cc51d34	257	$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
d5ca5905	258	$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \
24f65050 AN	259	-c $1 -o - \|\| echo "BPF obj compilation failed") \| \
	260	$(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
	261	endef
74b5a596 AN	262	# Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
74b5a596 AN	263	define CLANG_NATIVE_BPF_BUILD_RULE
2cc51d34	264	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
d5ca5905	265	$(Q)($(CLANG) $3 -O2 -emit-llvm \
74b5a596	266	-c $1 -o - \|\| echo "BPF obj compilation failed") \| \
83250f2b	267	$(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
74b5a596 AN	268	endef
	269	# Build BPF object using GCC
	270	define GCC_BPF_BUILD_RULE
2cc51d34	271	$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
d5ca5905	272	$(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
74b5a596 AN	273	endef
74b5a596 AN	274
0b9ad56b	275	SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
f3c926a4	276
74b5a596 AN	277	# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
	278	# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
	279	# Parameters:
	280	# $1 - test runner base binary name (e.g., test_progs)
e13a2fe6	281	# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
74b5a596 AN	282	define DEFINE_TEST_RUNNER
	283
	284	TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
	285	TRUNNER_BINARY := $1$(if $2,-)$2
	286	TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o, \
	287	$$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
	288	TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, \
	289	$$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
	290	TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
	291	TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
f3c926a4 AN	292	TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
	293	TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS))
	294	TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \
	295	$$(filter-out $(SKEL_BLACKLIST), \
	296	$$(TRUNNER_BPF_SRCS)))
309b81f0	297	TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
74b5a596 AN	298
	299	# Evaluate rules now with extra TRUNNER_XXX variables above already defined
	300	$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
	301
	302	endef
	303
	304	# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
	305	# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
	306	# $1 - test runner base binary name (e.g., test_progs)
e13a2fe6	307	# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
74b5a596	308	define DEFINE_TEST_RUNNER_RULES
e78e00bd	309
74b5a596 AN	310	ifeq ($($(TRUNNER_OUTPUT)-dir),)
	311	$(TRUNNER_OUTPUT)-dir := y
	312	$(TRUNNER_OUTPUT):
2cc51d34	313	$$(call msg,MKDIR,,$$@)
d5ca5905	314	$(Q)mkdir -p $$@
74b5a596 AN	315	endif
	316
	317	# ensure we set up BPF objects generation rule just once for a given
	318	# input/output directory combination
	319	ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
	320	$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
	321	$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \
	322	$(TRUNNER_BPF_PROGS_DIR)/%.c \
	323	$(TRUNNER_BPF_PROGS_DIR)/*.h \
acbd0620	324	$$(INCLUDE_DIR)/vmlinux.h \
3ac2e20f	325	$(wildcard $(BPFDIR)/bpf_*.h) \| $(TRUNNER_OUTPUT)
74b5a596 AN	326	$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \
	327	$(TRUNNER_BPF_CFLAGS), \
	328	$(TRUNNER_BPF_LDFLAGS))
f3c926a4 AN	329
	330	$(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \
	331	$(TRUNNER_OUTPUT)/%.o \
	332	\| $(BPFTOOL) $(TRUNNER_OUTPUT)
2cc51d34	333	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
d5ca5905	334	$(Q)$$(BPFTOOL) gen skeleton $$< > $$@
74b5a596 AN	335	endif
	336
	337	# ensure we set up tests.h header generation rule just once
	338	ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
	339	$(TRUNNER_TESTS_DIR)-tests-hdr := y
	340	$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
2cc51d34	341	$$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
74b5a596 AN	342	$$(shell ( cd $(TRUNNER_TESTS_DIR); \
	343	echo '/* Generated header, do not edit */'; \
	344	ls *.c 2> /dev/null \| \
	345	sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \
	346	) > $$@)
	347	endif
	348
	349	# compile individual test files
	350	# Note: we cd into output directory to ensure embedded BPF object is found
	351	$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
	352	$(TRUNNER_TESTS_DIR)/%.c \
	353	$(TRUNNER_EXTRA_HDRS) \
	354	$(TRUNNER_BPF_OBJS) \
f3c926a4	355	$(TRUNNER_BPF_SKELS) \
74b5a596	356	$$(BPFOBJ) \| $(TRUNNER_OUTPUT)
2cc51d34	357	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
d5ca5905	358	$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
74b5a596 AN	359
	360	$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
	361	%.c \
	362	$(TRUNNER_EXTRA_HDRS) \
	363	$(TRUNNER_TESTS_HDR) \
	364	$$(BPFOBJ) \| $(TRUNNER_OUTPUT)
2cc51d34	365	$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
d5ca5905	366	$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
74b5a596	367
f3c926a4	368	# only copy extra resources if in flavored build
74b5a596 AN	369	$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) \| $(TRUNNER_OUTPUT)
74b5a596 AN	370	ifneq ($2,)
2cc51d34	371	$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
d5ca5905	372	$(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
74b5a596 AN	373	endif
	374
	375	$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \
	376	$(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \
cc15a20d	377	$(RESOLVE_BTFIDS) \
74b5a596	378	\| $(TRUNNER_BINARY)-extras
2cc51d34	379	$$(call msg,BINARY,,$$@)
d5ca5905 AN	380	$(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
d5ca5905 AN	381	$(Q)$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@
74b5a596 AN	382
	383	endef
	384
	385	# Define test_progs test runner.
	386	TRUNNER_TESTS_DIR := prog_tests
	387	TRUNNER_BPF_PROGS_DIR := progs
	388	TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \
cd49291c AN	389	network_helpers.c testing_helpers.c \
cd49291c AN	390	flow_dissector_load.h
74b5a596 AN	391	TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \
	392	$(wildcard progs/btf_dump_test_case_*.c)
	393	TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
6910d7d3	394	TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
e13a2fe6	395	TRUNNER_BPF_LDFLAGS := -mattr=+alu32
74b5a596 AN	396	$(eval $(call DEFINE_TEST_RUNNER,test_progs))
74b5a596 AN	397
e13a2fe6	398	# Define test_progs-no_alu32 test runner.
24f65050	399	TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
e13a2fe6 YS	400	TRUNNER_BPF_LDFLAGS :=
e13a2fe6 YS	401	$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
3ef84346	402
74b5a596	403	# Define test_progs BPF-GCC-flavored test runner.
4ce150b6	404	ifneq ($(BPF_GCC),)
74b5a596	405	TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
313e7f6f	406	TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc)
74b5a596 AN	407	TRUNNER_BPF_LDFLAGS :=
74b5a596 AN	408	$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
4ce150b6 IL	409	endif
4ce150b6 IL	410
74b5a596 AN	411	# Define test_maps test runner.
	412	TRUNNER_TESTS_DIR := map_tests
	413	TRUNNER_BPF_PROGS_DIR := progs
	414	TRUNNER_EXTRA_SOURCES := test_maps.c
	415	TRUNNER_EXTRA_FILES :=
	416	TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
	417	TRUNNER_BPF_CFLAGS :=
	418	TRUNNER_BPF_LDFLAGS :=
	419	$(eval $(call DEFINE_TEST_RUNNER,test_maps))
	420
	421	# Define test_verifier test runner.
	422	# It is much simpler than test_maps/test_progs and sufficiently different from
	423	# them (e.g., test.h is using completely pattern), that it's worth just
	424	# explicitly defining all the rules explicitly.
	425	verifier/tests.h: verifier/*.c
e78e00bd	426	$(shell ( cd verifier/; \
2dfb4012 JK	427	echo '/* Generated header, do not edit */'; \
2dfb4012 JK	428	echo '#ifdef FILL_ARRAY'; \
74b5a596	429	ls .c 2> /dev/null \| sed -e 's@\(.\)@#include \"\1\"@'; \
2dfb4012	430	echo '#endif' \
74b5a596 AN	431	) > verifier/tests.h)
74b5a596 AN	432	$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) \| $(OUTPUT)
2cc51d34	433	$(call msg,BINARY,,$@)
d5ca5905	434	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
2dfb4012	435
6bf6affe	436	# Make sure we are able to include and link libbpf against c++.
7c8dce4b	437	$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
2cc51d34	438	$(call msg,CXX,,$@)
d5ca5905	439	$(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
6bf6affe	440
8e7c2a02 AN	441	# Benchmark runner
	442	$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
	443	$(call msg,CC,,$@)
d5ca5905	444	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
4eaf0b5c	445	$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
c5d420c3	446	$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
c97099b0 AN	447	$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
c97099b0 AN	448	$(OUTPUT)/perfbuf_bench.skel.h
8e7c2a02 AN	449	$(OUTPUT)/bench.o: bench.h testing_helpers.h
	450	$(OUTPUT)/bench: LDLIBS += -lm
	451	$(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
4eaf0b5c	452	$(OUTPUT)/bench_count.o \
c5d420c3	453	$(OUTPUT)/bench_rename.o \
c97099b0 AN	454	$(OUTPUT)/bench_trigger.o \
c97099b0 AN	455	$(OUTPUT)/bench_ringbufs.o
8e7c2a02	456	$(call msg,BINARY,,$@)
d5ca5905	457	$(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
8e7c2a02	458
a2c9652f	459	EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) \
74b5a596	460	prog_tests/tests.h map_tests/tests.h verifier/tests.h \
2031af28	461	feature \
a2c9652f	462	$(addprefix $(OUTPUT)/,.o .skel.h no_alu32 bpf_gcc)