diff options
Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 466 |
1 files changed, 466 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile new file mode 100644 index 000000000..a845724e0 --- /dev/null +++ b/tools/testing/selftests/bpf/Makefile @@ -0,0 +1,466 @@ +# 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$(APIDIR) \ + -Dbpf_prog_load=bpf_prog_test_load \ + -Dbpf_load_program=bpf_test_load_program +LDLIBS += -lcap -lelf -lz -lrt -lpthread + +# Order correspond to 'make run_tests' order +TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ + test_verifier_log test_dev_cgroup test_tcpbpf_user \ + test_sock test_sockmap get_cgroup_id_user test_socket_cookie \ + test_cgroup_storage \ + test_netcnt test_tcpnotify_user test_sysctl \ + test_progs-no_alu32 \ + test_current_pid_tgid_new_ns + +# Also test bpf-gcc, if present +ifneq ($(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_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 $@ $< $(LDLIBS) -Wl,--build-id=sha1 + +$(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 $(VMLINUX_BTF_PATHS)))) +ifeq ($(VMLINUX_BTF),) +$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)") +endif + +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 }') \ +$(shell $(1) -dM -E - </dev/null | grep '#define __riscv_xlen ' | sed 's/#define /-D/' | sed 's/ /=/') +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) $$(BPFOBJ) + $$(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) |