diff options
Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 507 |
1 files changed, 306 insertions, 201 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index c085964e1d05..257a1aaaa37d 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -2,10 +2,14 @@ include ../../../../scripts/Kbuild.include include ../../../scripts/Makefile.arch -LIBDIR := ../../../lib +CURDIR := $(abspath .) +TOOLSDIR := $(abspath ../../..) +LIBDIR := $(TOOLSDIR)/lib BPFDIR := $(LIBDIR)/bpf -APIDIR := ../../../include/uapi -GENDIR := ../../../../include/generated +TOOLSINCDIR := $(TOOLSDIR)/include +BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool +APIDIR := $(TOOLSINCDIR)/uapi +GENDIR := $(abspath ../../../../include/generated) GENHDR := $(GENDIR)/autoconf.h ifneq ($(wildcard $(GENHDR)),) @@ -15,38 +19,32 @@ endif CLANG ?= clang LLC ?= llc LLVM_OBJCOPY ?= llvm-objcopy -LLVM_READELF ?= llvm-readelf -BTF_PAHOLE ?= pahole -CFLAGS += -g -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include \ - -Dbpf_prog_load=bpf_prog_test_load \ +BPF_GCC ?= $(shell command -v bpf-gcc;) +CFLAGS += -g -Wall -O2 $(GENFLAGS) -I$(CURDIR) -I$(APIDIR) \ + -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) -I$(TOOLSINCDIR) \ + -Dbpf_prog_load=bpf_prog_test_load \ -Dbpf_load_program=bpf_test_load_program -LDLIBS += -lcap -lelf -lrt -lpthread +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_align test_verifier_log test_dev_cgroup test_tcpbpf_user \ test_sock test_btf test_sockmap get_cgroup_id_user test_socket_cookie \ - test_cgroup_storage test_select_reuseport test_section_names \ + test_cgroup_storage \ test_netcnt test_tcpnotify_user test_sock_fields test_sysctl test_hashmap \ - test_btf_dump test_cgroup_attach xdping test_sockopt test_sockopt_sk \ - test_sockopt_multi test_tcp_rtt - -BPF_OBJ_FILES = $(patsubst %.c,%.o, $(notdir $(wildcard progs/*.c))) -TEST_GEN_FILES = $(BPF_OBJ_FILES) - -# Also test sub-register code-gen if LLVM has eBPF v3 processor support which -# contains both ALU32 and JMP32 instructions. -SUBREG_CODEGEN := $(shell echo "int cal(int a) { return a > 0; }" | \ - $(CLANG) -target bpf -O2 -emit-llvm -S -x c - -o - | \ - $(LLC) -mattr=+alu32 -mcpu=v3 2>&1 | \ - grep 'if w') -ifneq ($(SUBREG_CODEGEN),) -TEST_GEN_FILES += $(patsubst %.o,alu32/%.o, $(BPF_OBJ_FILES)) + test_progs-no_alu32 + +# Also test bpf-gcc, if present +ifneq ($(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_libbpf.sh \ test_xdp_redirect.sh \ test_xdp_meta.sh \ test_xdp_veth.sh \ @@ -63,35 +61,83 @@ TEST_PROGS := test_kmod.sh \ test_tcp_check_syncookie.sh \ test_tc_tunnel.sh \ test_tc_edt.sh \ - test_xdping.sh + test_xdping.sh \ + test_bpftool_build.sh TEST_PROGS_EXTENDED := with_addr.sh \ with_tunnels.sh \ tcp_client.py \ - tcp_server.py + tcp_server.py \ + test_xdp_vlan.sh # Compile but not part of 'make run_tests' -TEST_GEN_PROGS_EXTENDED = test_libbpf_open test_sock_addr test_skb_cgroup_id_user \ +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 - -include ../lib.mk - -# NOTE: $(OUTPUT) won't get default value if used before lib.mk -TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read -all: $(TEST_CUSTOM_PROGS) - -$(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c - $(CC) -o $@ $< -Wl,--build-id - -$(OUTPUT)/test_stub.o: test_stub.c - $(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) -c -o $@ $< + test_lirc_mode2_user xdping test_cpp runqslower + +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 -BPFOBJ := $(OUTPUT)/libbpf.a +# override lib.mk's default rules +OVERRIDE_TARGETS := 1 +override define CLEAN + $(call msg,CLEAN) + $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) +endef -$(TEST_GEN_PROGS): $(OUTPUT)/test_stub.o $(BPFOBJ) +include ../lib.mk -$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(OUTPUT)/libbpf.a +SCRATCH_DIR := $(OUTPUT)/tools +BUILD_DIR := $(SCRATCH_DIR)/build +INCLUDE_DIR := $(SCRATCH_DIR)/include +BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a + +# Define simple and short `make test_progs`, `make test_sysctl`, etc targets +# to build individual tests. +# NOTE: Semicolon at the end is critical to override lib.mk's default static +# rule for binaries. +$(notdir $(TEST_GEN_PROGS) \ + $(TEST_PROGS) \ + $(TEST_PROGS_EXTENDED) \ + $(TEST_GEN_PROGS_EXTENDED) \ + $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; + +$(OUTPUT)/%:%.c + $(call msg,BINARY,,$@) + $(LINK.c) $^ $(LDLIBS) -o $@ + +$(OUTPUT)/urandom_read: urandom_read.c + $(call msg,BINARY,,$@) + $(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id + +$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) + $(call msg,CC,,$@) + $(CC) -c $(CFLAGS) -o $@ $< + +VMLINUX_BTF_PATHS := $(abspath ../../../../vmlinux) \ + /sys/kernel/btf/vmlinux \ + /boot/vmlinux-$(shell uname -r) +VMLINUX_BTF:= $(firstword $(wildcard $(VMLINUX_BTF_PATHS))) +$(OUTPUT)/runqslower: $(BPFOBJ) + $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ + OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \ + BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) + +$(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 @@ -101,35 +147,29 @@ $(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)/test_progs: 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 $(OUTPUT)/test_sysctl: cgroup_helpers.c -$(OUTPUT)/test_cgroup_attach: cgroup_helpers.c -$(OUTPUT)/test_sockopt: cgroup_helpers.c -$(OUTPUT)/test_sockopt_sk: cgroup_helpers.c -$(OUTPUT)/test_sockopt_multi: cgroup_helpers.c -$(OUTPUT)/test_tcp_rtt: cgroup_helpers.c -.PHONY: force - -# force a rebuild of BPFOBJ when its dependencies are updated -force: - -$(BPFOBJ): force - $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ - -PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1) - -# Let newer LLVM versions transparently probe the kernel for availability -# of full BPF instruction set. -ifeq ($(PROBE),) - CPU ?= probe -else - CPU ?= generic -endif +DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool +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=$(SCRATCH_DIR)/ install + +$(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 $(INCLUDE_DIR): + $(call msg,MKDIR,,$@) + mkdir -p $@ # Get Clang's default includes on this system, as opposed to those seen by # '-target bpf'. This fixes "missing" files on some architectures/distros, @@ -137,157 +177,222 @@ endif # # Use '-idirafter': Don't interfere with include mechanics except where the # build would have failed anyways. -CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \ +define get_sys_includes +$(shell $(1) -v -E - </dev/null 2>&1 \ | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') +endef -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \ - $(CLANG_SYS_INCLUDES) \ - -Wno-compare-distinct-pointer-types \ - -D__TARGET_ARCH_$(SRCARCH) +# Determine target endianness. +IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \ + grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__') +MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) -$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline -$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline +CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG)) +BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ + -I$(INCLUDE_DIR) -I$(CURDIR) -I$(CURDIR)/include/uapi \ + -I$(APIDIR) -I$(abspath $(OUTPUT)/../usr/include) -$(OUTPUT)/test_queue_map.o: test_queue_stack_map.h -$(OUTPUT)/test_stack_map.o: test_queue_stack_map.h +CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ + -Wno-compare-distinct-pointer-types -$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h -$(OUTPUT)/test_progs.o: flow_dissector_load.h - -BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris) -BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) -BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm') -BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \ - $(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \ - $(LLVM_READELF) -S ./llvm_btf_verify.o | grep BTF; \ - /bin/rm -f ./llvm_btf_verify.o) - -ifneq ($(BTF_LLVM_PROBE),) - CLANG_FLAGS += -g -else -ifneq ($(BTF_LLC_PROBE),) -ifneq ($(BTF_PAHOLE_PROBE),) -ifneq ($(BTF_OBJCOPY_PROBE),) - CLANG_FLAGS += -g - LLC_FLAGS += -mattr=dwarfris - DWARF2BTF = y -endif -endif -endif -endif - -TEST_PROGS_CFLAGS := -I. -I$(OUTPUT) -TEST_MAPS_CFLAGS := -I. -I$(OUTPUT) -TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier +$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline +$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline -ifneq ($(SUBREG_CODEGEN),) -ALU32_BUILD_DIR = $(OUTPUT)/alu32 -TEST_CUSTOM_PROGS += $(ALU32_BUILD_DIR)/test_progs_32 -$(ALU32_BUILD_DIR): - mkdir -p $@ +$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h -$(ALU32_BUILD_DIR)/urandom_read: $(OUTPUT)/urandom_read | $(ALU32_BUILD_DIR) - cp $< $@ - -$(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(OUTPUT)/libbpf.a\ - $(ALU32_BUILD_DIR)/urandom_read \ - | $(ALU32_BUILD_DIR) - $(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) \ - -o $(ALU32_BUILD_DIR)/test_progs_32 \ - test_progs.c test_stub.c trace_helpers.c prog_tests/*.c \ - $(OUTPUT)/libbpf.a $(LDLIBS) - -$(ALU32_BUILD_DIR)/test_progs_32: $(PROG_TESTS_H) -$(ALU32_BUILD_DIR)/test_progs_32: prog_tests/*.c - -$(ALU32_BUILD_DIR)/%.o: progs/%.c $(ALU32_BUILD_DIR)/test_progs_32 \ - | $(ALU32_BUILD_DIR) - ($(CLANG) $(CLANG_FLAGS) -O2 -target bpf -emit-llvm -c $< -o - || \ - echo "clang failed") | \ - $(LLC) -march=bpf -mattr=+alu32 -mcpu=$(CPU) $(LLC_FLAGS) \ - -filetype=obj -o $@ -ifeq ($(DWARF2BTF),y) - $(BTF_PAHOLE) -J $@ -endif +# 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),$2) + ($(CLANG) $3 -O2 -target bpf -emit-llvm \ + -c $1 -o - || echo "BPF obj compilation failed") | \ + $(LLC) -mattr=dwarfris -march=bpf -mcpu=probe $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),$2) + ($(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),$2) + ($(CLANG) $3 -O2 -emit-llvm \ + -c $1 -o - || echo "BPF obj compilation failed") | \ + $(LLC) -march=bpf -mcpu=probe $4 -filetype=obj -o $2 +endef +# Build BPF object using GCC +define GCC_BPF_BUILD_RULE + $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) + $(BPF_GCC) $3 $4 -O2 -c $1 -o $2 +endef + +SKEL_BLACKLIST := btf__% test_pinning_invalid.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), \ + $$(TRUNNER_BPF_SRCS))) + +# Evaluate rules now with extra TRUNNER_XXX variables above already defined +$$(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,,$$@) + mkdir -p $$@ endif -# Have one program compiled without "-target bpf" to test whether libbpf loads -# it successfully -$(OUTPUT)/test_xdp.o: progs/test_xdp.c - ($(CLANG) $(CLANG_FLAGS) -O2 -emit-llvm -c $< -o - || \ - echo "clang failed") | \ - $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ -ifeq ($(DWARF2BTF),y) - $(BTF_PAHOLE) -J $@ +# ensure we set up BPF objects generation rule just once for a given +# input/output directory combination +ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(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 \ + $$(BPFOBJ) | $(TRUNNER_OUTPUT) + $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ + $(TRUNNER_BPF_CFLAGS), \ + $(TRUNNER_BPF_LDFLAGS)) + +$(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \ + $(TRUNNER_OUTPUT)/%.o \ + | $(BPFTOOL) $(TRUNNER_OUTPUT) + $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) + $$(BPFTOOL) gen skeleton $$< > $$@ endif -$(OUTPUT)/%.o: progs/%.c - ($(CLANG) $(CLANG_FLAGS) -O2 -target bpf -emit-llvm -c $< -o - || \ - echo "clang failed") | \ - $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@ -ifeq ($(DWARF2BTF),y) - $(BTF_PAHOLE) -J $@ +# ensure we set up tests.h header generation rule just once +ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) +$(TRUNNER_TESTS_DIR)-tests-hdr := y +$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c + $$(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 -PROG_TESTS_DIR = $(OUTPUT)/prog_tests -$(PROG_TESTS_DIR): - mkdir -p $@ -PROG_TESTS_H := $(PROG_TESTS_DIR)/tests.h -PROG_TESTS_FILES := $(wildcard prog_tests/*.c) -test_progs.c: $(PROG_TESTS_H) -$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS) -$(OUTPUT)/test_progs: test_progs.c $(PROG_TESTS_H) $(PROG_TESTS_FILES) -$(PROG_TESTS_H): $(PROG_TESTS_FILES) | $(PROG_TESTS_DIR) - $(shell ( cd prog_tests/; \ - echo '/* Generated header, do not edit */'; \ - echo '#ifdef DECLARE'; \ - ls *.c 2> /dev/null | \ - sed -e 's@\([^\.]*\)\.c@extern void test_\1(void);@'; \ - echo '#endif'; \ - echo '#ifdef CALL'; \ - ls *.c 2> /dev/null | \ - sed -e 's@\([^\.]*\)\.c@test_\1();@'; \ - echo '#endif' \ - ) > $(PROG_TESTS_H)) +# compile individual test files +# Note: we cd into output directory to ensure embedded BPF object is found +$(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),$$@) + cd $$(@D) && $$(CC) $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) + +$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ + %.c \ + $(TRUNNER_EXTRA_HDRS) \ + $(TRUNNER_TESTS_HDR) \ + $$(BPFOBJ) | $(TRUNNER_OUTPUT) + $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) + $$(CC) $$(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)) + cp -a $$^ $(TRUNNER_OUTPUT)/ +endif -MAP_TESTS_DIR = $(OUTPUT)/map_tests -$(MAP_TESTS_DIR): - mkdir -p $@ -MAP_TESTS_H := $(MAP_TESTS_DIR)/tests.h -MAP_TESTS_FILES := $(wildcard map_tests/*.c) -test_maps.c: $(MAP_TESTS_H) -$(OUTPUT)/test_maps: CFLAGS += $(TEST_MAPS_CFLAGS) -$(OUTPUT)/test_maps: test_maps.c $(MAP_TESTS_H) $(MAP_TESTS_FILES) -$(MAP_TESTS_H): $(MAP_TESTS_FILES) | $(MAP_TESTS_DIR) - $(shell ( cd map_tests/; \ - echo '/* Generated header, do not edit */'; \ - echo '#ifdef DECLARE'; \ - ls *.c 2> /dev/null | \ - sed -e 's@\([^\.]*\)\.c@extern void test_\1(void);@'; \ - echo '#endif'; \ - echo '#ifdef CALL'; \ - ls *.c 2> /dev/null | \ - sed -e 's@\([^\.]*\)\.c@test_\1();@'; \ - echo '#endif' \ - ) > $(MAP_TESTS_H)) +$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ + $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ + | $(TRUNNER_BINARY)-extras + $$(call msg,BINARY,,$$@) + $$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ + +endef + +# Define test_progs test runner. +TRUNNER_TESTS_DIR := prog_tests +TRUNNER_BPF_PROGS_DIR := progs +TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ + flow_dissector_load.h +TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ + $(wildcard progs/btf_dump_test_case_*.c) +TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE +TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) +TRUNNER_BPF_LDFLAGS := -mattr=+alu32 +$(eval $(call DEFINE_TEST_RUNNER,test_progs)) + +# Define test_progs-no_alu32 test runner. +TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE +TRUNNER_BPF_LDFLAGS := +$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32)) + +# Define test_progs BPF-GCC-flavored test runner. +ifneq ($(BPF_GCC),) +TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE +TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc) +TRUNNER_BPF_LDFLAGS := +$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc)) +endif -VERIFIER_TESTS_DIR = $(OUTPUT)/verifier -$(VERIFIER_TESTS_DIR): - mkdir -p $@ -VERIFIER_TESTS_H := $(VERIFIER_TESTS_DIR)/tests.h -VERIFIER_TEST_FILES := $(wildcard verifier/*.c) -test_verifier.c: $(VERIFIER_TESTS_H) -$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS) -$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H) -$(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR) +# Define test_maps test runner. +TRUNNER_TESTS_DIR := map_tests +TRUNNER_BPF_PROGS_DIR := progs +TRUNNER_EXTRA_SOURCES := test_maps.c +TRUNNER_EXTRA_FILES := +TRUNNER_BPF_BUILD_RULE := $$(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\"@'; \ + ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \ echo '#endif' \ - ) > $(VERIFIER_TESTS_H)) - -EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(ALU32_BUILD_DIR) \ - $(VERIFIER_TESTS_H) $(PROG_TESTS_H) $(MAP_TESTS_H) \ - feature + ) > verifier/tests.h) +$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) + $(call msg,BINARY,,$@) + $(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) + $(call msg,CXX,,$@) + $(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@ + +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) |
