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537c3f66ea
It's become a common pattern to have a collection of small BPF programs in one BPF object file, each representing one test case. On user-space side of such tests we maintain a table of program names and expected failure or success, along with optional expected verifier log message. This works, but each set of tests reimplement this mundane code over and over again, which is a waste of time for anyone trying to add a new set of tests. Furthermore, it's quite error prone as it's way too easy to miss some entries in these manually maintained test tables (as evidences by dynptr_fail tests, in which ringbuf_release_uninit_dynptr subtest was accidentally missed; this is fixed in next patch). So this patch implements generic test_loader, which accepts skeleton name and handles the rest of details: opens and loads BPF object file, making sure each program is tested in isolation. Optionally each test case can specify expected BPF verifier log message. In case of failure, tester makes sure to report verifier log, but it also reports verifier log in verbose mode unconditionally. Now, the interesting deviation from existing custom implementations is the use of btf_decl_tag attribute to specify expected-to-fail vs expected-to-succeed markers and, optionally, expected log message directly next to BPF program source code, eliminating the need to manually create and update table of tests. We define few macros wrapping btf_decl_tag with a convention that all values of btf_decl_tag start with "comment:" prefix, and then utilizing a very simple "just_some_text_tag" or "some_key_name=<value>" pattern to define things like expected success/failure, expected verifier message, extra verifier log level (if necessary). This approach is demonstrated by next patch in which two existing sets of failure tests are converted. Tester supports both expected-to-fail and expected-to-succeed programs, though this patch set didn't convert any existing expected-to-succeed programs yet, as existing tests couple BPF program loading with their further execution through attach or test_prog_run. One way to allow testing scenarios like this would be ability to specify custom callback, executed for each successfully loaded BPF program. This is left for follow up patches, after some more analysis of existing test cases. This test_loader is, hopefully, a start of a test_verifier-like runner, but integrated into test_progs infrastructure. It will allow much better "user experience" of defining low-level verification tests that can take advantage of all the libbpf-provided nicety features on BPF side: global variables, declarative maps, etc. All while having a choice of defining it in C or as BPF assembly (through __attribute__((naked)) functions and using embedded asm), depending on what makes most sense in each particular case. This will be explored in follow up patches as well. Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221207201648.2990661-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
629 lines
24 KiB
Makefile
629 lines
24 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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include ../../../build/Build.include
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include ../../../scripts/Makefile.arch
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include ../../../scripts/Makefile.include
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CXX ?= $(CROSS_COMPILE)g++
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CURDIR := $(abspath .)
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TOOLSDIR := $(abspath ../../..)
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LIBDIR := $(TOOLSDIR)/lib
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BPFDIR := $(LIBDIR)/bpf
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TOOLSINCDIR := $(TOOLSDIR)/include
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BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
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APIDIR := $(TOOLSINCDIR)/uapi
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GENDIR := $(abspath ../../../../include/generated)
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GENHDR := $(GENDIR)/autoconf.h
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HOSTPKG_CONFIG := pkg-config
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ifneq ($(wildcard $(GENHDR)),)
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GENFLAGS := -DHAVE_GENHDR
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endif
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BPF_GCC ?= $(shell command -v bpf-gcc;)
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SAN_CFLAGS ?=
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CFLAGS += -g -O0 -rdynamic -Wall -Werror $(GENFLAGS) $(SAN_CFLAGS) \
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-I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \
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-I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT)
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LDFLAGS += $(SAN_CFLAGS)
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LDLIBS += -lelf -lz -lrt -lpthread
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# Silence some warnings when compiled with clang
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ifneq ($(LLVM),)
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CFLAGS += -Wno-unused-command-line-argument
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endif
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# Order correspond to 'make run_tests' order
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TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
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test_verifier_log test_dev_cgroup \
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test_sock test_sockmap get_cgroup_id_user \
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test_cgroup_storage \
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test_tcpnotify_user test_sysctl \
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test_progs-no_alu32
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# Also test bpf-gcc, if present
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ifneq ($(BPF_GCC),)
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TEST_GEN_PROGS += test_progs-bpf_gcc
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endif
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TEST_GEN_FILES = test_lwt_ip_encap.bpf.o test_tc_edt.bpf.o
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TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c)
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# Order correspond to 'make run_tests' order
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TEST_PROGS := test_kmod.sh \
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test_xdp_redirect.sh \
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test_xdp_redirect_multi.sh \
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test_xdp_meta.sh \
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test_xdp_veth.sh \
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test_offload.py \
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test_sock_addr.sh \
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test_tunnel.sh \
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test_lwt_seg6local.sh \
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test_lirc_mode2.sh \
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test_skb_cgroup_id.sh \
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test_flow_dissector.sh \
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test_xdp_vlan_mode_generic.sh \
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test_xdp_vlan_mode_native.sh \
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test_lwt_ip_encap.sh \
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test_tcp_check_syncookie.sh \
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test_tc_tunnel.sh \
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test_tc_edt.sh \
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test_xdping.sh \
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test_bpftool_build.sh \
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test_bpftool.sh \
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test_bpftool_metadata.sh \
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test_doc_build.sh \
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test_xsk.sh
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TEST_PROGS_EXTENDED := with_addr.sh \
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with_tunnels.sh ima_setup.sh verify_sig_setup.sh \
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test_xdp_vlan.sh test_bpftool.py
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# Compile but not part of 'make run_tests'
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TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
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flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
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test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
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xskxceiver xdp_redirect_multi xdp_synproxy veristat
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TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read $(OUTPUT)/sign-file
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TEST_GEN_FILES += liburandom_read.so
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# Emit succinct information message describing current building step
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# $1 - generic step name (e.g., CC, LINK, etc);
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# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
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# $3 - target (assumed to be file); only file name will be emitted;
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# $4 - optional extra arg, emitted as-is, if provided.
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ifeq ($(V),1)
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Q =
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msg =
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else
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Q = @
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msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
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MAKEFLAGS += --no-print-directory
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submake_extras := feature_display=0
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endif
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# override lib.mk's default rules
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OVERRIDE_TARGETS := 1
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override define CLEAN
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$(call msg,CLEAN)
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$(Q)$(RM) -r $(TEST_GEN_PROGS)
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$(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED)
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$(Q)$(RM) -r $(TEST_GEN_FILES)
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$(Q)$(RM) -r $(EXTRA_CLEAN)
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$(Q)$(MAKE) -C bpf_testmod clean
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$(Q)$(MAKE) docs-clean
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endef
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include ../lib.mk
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SCRATCH_DIR := $(OUTPUT)/tools
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BUILD_DIR := $(SCRATCH_DIR)/build
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INCLUDE_DIR := $(SCRATCH_DIR)/include
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BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
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ifneq ($(CROSS_COMPILE),)
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HOST_BUILD_DIR := $(BUILD_DIR)/host
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HOST_SCRATCH_DIR := $(OUTPUT)/host-tools
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HOST_INCLUDE_DIR := $(HOST_SCRATCH_DIR)/include
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else
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HOST_BUILD_DIR := $(BUILD_DIR)
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HOST_SCRATCH_DIR := $(SCRATCH_DIR)
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HOST_INCLUDE_DIR := $(INCLUDE_DIR)
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endif
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HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
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RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
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RUNQSLOWER_OUTPUT := $(BUILD_DIR)/runqslower/
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VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \
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$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
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../../../../vmlinux \
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/sys/kernel/btf/vmlinux \
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/boot/vmlinux-$(shell uname -r)
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VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
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ifeq ($(VMLINUX_BTF),)
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$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
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endif
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# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
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# to build individual tests.
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# NOTE: Semicolon at the end is critical to override lib.mk's default static
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# rule for binaries.
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$(notdir $(TEST_GEN_PROGS) \
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$(TEST_PROGS) \
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$(TEST_PROGS_EXTENDED) \
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$(TEST_GEN_PROGS_EXTENDED) \
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$(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
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# sort removes libbpf duplicates when not cross-building
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MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf \
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$(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids \
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$(RUNQSLOWER_OUTPUT) $(INCLUDE_DIR))
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$(MAKE_DIRS):
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$(call msg,MKDIR,,$@)
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$(Q)mkdir -p $@
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$(OUTPUT)/%.o: %.c
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$(call msg,CC,,$@)
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$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
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$(OUTPUT)/%:%.c
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$(call msg,BINARY,,$@)
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$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
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# LLVM's ld.lld doesn't support all the architectures, so use it only on x86
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ifeq ($(SRCARCH),x86)
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LLD := lld
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else
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LLD := ld
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endif
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# Filter out -static for liburandom_read.so and its dependent targets so that static builds
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# do not fail. Static builds leave urandom_read relying on system-wide shared libraries.
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$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c
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$(call msg,LIB,,$@)
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$(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $^ $(LDLIBS) \
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-fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
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-fPIC -shared -o $@
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$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so
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$(call msg,BINARY,,$@)
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$(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \
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liburandom_read.so $(LDLIBS) \
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-fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
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-Wl,-rpath=. -o $@
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$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c
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$(call msg,SIGN-FILE,,$@)
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$(Q)$(CC) $(shell $(HOSTPKG_CONFIG)--cflags libcrypto 2> /dev/null) \
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$< -o $@ \
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$(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
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$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
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$(call msg,MOD,,$@)
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$(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation
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$(Q)$(MAKE) $(submake_extras) RESOLVE_BTFIDS=$(RESOLVE_BTFIDS) -C bpf_testmod
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$(Q)cp bpf_testmod/bpf_testmod.ko $@
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DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
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$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT)
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$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \
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OUTPUT=$(RUNQSLOWER_OUTPUT) VMLINUX_BTF=$(VMLINUX_BTF) \
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BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \
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BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf \
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BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \
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cp $(RUNQSLOWER_OUTPUT)runqslower $@
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TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL)
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$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)
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CGROUP_HELPERS := $(OUTPUT)/cgroup_helpers.o
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TESTING_HELPERS := $(OUTPUT)/testing_helpers.o
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TRACE_HELPERS := $(OUTPUT)/trace_helpers.o
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CAP_HELPERS := $(OUTPUT)/cap_helpers.o
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$(OUTPUT)/test_dev_cgroup: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_skb_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_sock_addr: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)
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$(OUTPUT)/get_cgroup_id_user: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_cgroup_storage: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_sysctl: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_tag: $(TESTING_HELPERS)
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$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS)
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$(OUTPUT)/xdping: $(TESTING_HELPERS)
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$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS)
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$(OUTPUT)/test_maps: $(TESTING_HELPERS)
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$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS)
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$(OUTPUT)/xsk.o: $(BPFOBJ)
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$(OUTPUT)/xskxceiver: $(OUTPUT)/xsk.o
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BPFTOOL ?= $(DEFAULT_BPFTOOL)
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$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
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$(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
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$(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
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ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) \
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EXTRA_CFLAGS='-g -O0' \
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OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \
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LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \
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LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \
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prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin
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all: docs
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docs:
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$(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras) \
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-f Makefile.docs \
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prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
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docs-clean:
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$(Q)$(MAKE) $(submake_extras) \
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-f Makefile.docs \
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prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
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$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
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$(APIDIR)/linux/bpf.h \
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| $(BUILD_DIR)/libbpf
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$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
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EXTRA_CFLAGS='-g -O0' \
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DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
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ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
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$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
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$(APIDIR)/linux/bpf.h \
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| $(HOST_BUILD_DIR)/libbpf
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$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \
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EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \
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OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \
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DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
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endif
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$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
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ifeq ($(VMLINUX_H),)
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$(call msg,GEN,,$@)
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$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
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else
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$(call msg,CP,,$@)
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$(Q)cp "$(VMLINUX_H)" $@
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endif
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$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids \
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$(TOOLSDIR)/bpf/resolve_btfids/main.c \
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$(TOOLSDIR)/lib/rbtree.c \
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$(TOOLSDIR)/lib/zalloc.c \
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$(TOOLSDIR)/lib/string.c \
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$(TOOLSDIR)/lib/ctype.c \
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$(TOOLSDIR)/lib/str_error_r.c
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$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids \
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CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \
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LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \
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OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
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# Get Clang's default includes on this system, as opposed to those seen by
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# '-target bpf'. This fixes "missing" files on some architectures/distros,
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# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
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#
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# Use '-idirafter': Don't interfere with include mechanics except where the
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# build would have failed anyways.
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define get_sys_includes
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$(shell $(1) $(2) -v -E - </dev/null 2>&1 \
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| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
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$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')
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endef
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# Determine target endianness.
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IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
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grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
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MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
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ifneq ($(CROSS_COMPILE),)
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CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))
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endif
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CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
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BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \
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-I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR) \
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-I$(abspath $(OUTPUT)/../usr/include)
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CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
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-Wno-compare-distinct-pointer-types
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$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
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$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
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$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
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$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h
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# Build BPF object using Clang
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# $1 - input .c file
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# $2 - output .o file
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# $3 - CFLAGS
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define CLANG_BPF_BUILD_RULE
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$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
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$(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v3 -o $2
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endef
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# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
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define CLANG_NOALU32_BPF_BUILD_RULE
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$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
|
|
$(Q)$(CLANG) $3 -O2 -target bpf -c $1 -mcpu=v2 -o $2
|
|
endef
|
|
# Build BPF object using GCC
|
|
define GCC_BPF_BUILD_RULE
|
|
$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
|
|
$(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2
|
|
endef
|
|
|
|
SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
|
|
|
|
LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \
|
|
linked_vars.skel.h linked_maps.skel.h \
|
|
test_subskeleton.skel.h test_subskeleton_lib.skel.h \
|
|
test_usdt.skel.h
|
|
|
|
LSKELS := fentry_test.c fexit_test.c fexit_sleep.c atomics.c \
|
|
trace_printk.c trace_vprintk.c map_ptr_kern.c \
|
|
core_kern.c core_kern_overflow.c test_ringbuf.c \
|
|
test_ringbuf_map_key.c
|
|
|
|
# Generate both light skeleton and libbpf skeleton for these
|
|
LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \
|
|
kfunc_call_test_subprog.c
|
|
SKEL_BLACKLIST += $$(LSKELS)
|
|
|
|
test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o
|
|
linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o
|
|
linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o
|
|
linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o
|
|
# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file
|
|
# but that's created as a side-effect of the skel.h generation.
|
|
test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o
|
|
test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o
|
|
test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o
|
|
|
|
LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps)))
|
|
|
|
# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
|
|
# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
|
|
# Parameters:
|
|
# $1 - test runner base binary name (e.g., test_progs)
|
|
# $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
|
|
define DEFINE_TEST_RUNNER
|
|
|
|
TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
|
|
TRUNNER_BINARY := $1$(if $2,-)$2
|
|
TRUNNER_TEST_OBJS := $$(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,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS))
|
|
TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h, \
|
|
$$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
|
|
$$(TRUNNER_BPF_SRCS)))
|
|
TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA))
|
|
TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
|
|
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)/%.bpf.o: \
|
|
$(TRUNNER_BPF_PROGS_DIR)/%.c \
|
|
$(TRUNNER_BPF_PROGS_DIR)/*.h \
|
|
$$(INCLUDE_DIR)/vmlinux.h \
|
|
$(wildcard $(BPFDIR)/bpf_*.h) \
|
|
$(wildcard $(BPFDIR)/*.bpf.h) \
|
|
| $(TRUNNER_OUTPUT) $$(BPFOBJ)
|
|
$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \
|
|
$(TRUNNER_BPF_CFLAGS))
|
|
|
|
$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
|
|
$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
|
|
$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
|
|
$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
|
|
$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
|
|
$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
|
|
$(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@
|
|
$(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h)
|
|
|
|
$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
|
|
$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
|
|
$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$<
|
|
$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o)
|
|
$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o)
|
|
$(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
|
|
$(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@
|
|
|
|
$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT)
|
|
$$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o))
|
|
$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
|
|
$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o)
|
|
$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o)
|
|
$(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
|
|
$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
|
|
$(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@
|
|
$(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h)
|
|
endif
|
|
|
|
# ensure we set up tests.h header generation rule just once
|
|
ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
|
|
$(TRUNNER_TESTS_DIR)-tests-hdr := y
|
|
$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
|
|
$$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
|
|
$$(shell (echo '/* Generated header, do not edit */'; \
|
|
sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p' \
|
|
$(TRUNNER_TESTS_DIR)/*.c | sort ; \
|
|
) > $$@)
|
|
endif
|
|
|
|
# compile individual test files
|
|
# Note: we cd into output directory to ensure embedded BPF object is found
|
|
$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
|
|
$(TRUNNER_TESTS_DIR)/%.c \
|
|
$(TRUNNER_EXTRA_HDRS) \
|
|
$(TRUNNER_BPF_OBJS) \
|
|
$(TRUNNER_BPF_SKELS) \
|
|
$(TRUNNER_BPF_LSKELS) \
|
|
$(TRUNNER_BPF_SKELS_LINKED) \
|
|
$$(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) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
|
|
|
|
# non-flavored in-srctree builds receive special treatment, in particular, we
|
|
# do not need to copy extra resources (see e.g. test_btf_dump_case())
|
|
$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
|
|
ifneq ($2:$(OUTPUT),:$(shell pwd))
|
|
$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
|
|
$(Q)rsync -aq $$^ $(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 $$@
|
|
$(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@
|
|
$(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/bootstrap/bpftool $(if $2,$2/)bpftool
|
|
|
|
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 \
|
|
btf_helpers.c flow_dissector_load.h \
|
|
cap_helpers.c test_loader.c
|
|
TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \
|
|
$(OUTPUT)/liburandom_read.so \
|
|
$(OUTPUT)/xdp_synproxy \
|
|
$(OUTPUT)/sign-file \
|
|
ima_setup.sh \
|
|
verify_sig_setup.sh \
|
|
$(wildcard progs/btf_dump_test_case_*.c) \
|
|
$(wildcard progs/*.bpf.o)
|
|
TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
|
|
TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
|
|
$(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_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
|
|
$(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,)
|
|
$(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 :=
|
|
$(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) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@
|
|
|
|
# Benchmark runner
|
|
$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ)
|
|
$(call msg,CC,,$@)
|
|
$(Q)$(CC) $(CFLAGS) -O2 -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_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h
|
|
$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h
|
|
$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h
|
|
$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h
|
|
$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h
|
|
$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h
|
|
$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)
|
|
$(OUTPUT)/bench: LDLIBS += -lm
|
|
$(OUTPUT)/bench: $(OUTPUT)/bench.o \
|
|
$(TESTING_HELPERS) \
|
|
$(TRACE_HELPERS) \
|
|
$(OUTPUT)/bench_count.o \
|
|
$(OUTPUT)/bench_rename.o \
|
|
$(OUTPUT)/bench_trigger.o \
|
|
$(OUTPUT)/bench_ringbufs.o \
|
|
$(OUTPUT)/bench_bloom_filter_map.o \
|
|
$(OUTPUT)/bench_bpf_loop.o \
|
|
$(OUTPUT)/bench_strncmp.o \
|
|
$(OUTPUT)/bench_bpf_hashmap_full_update.o \
|
|
$(OUTPUT)/bench_local_storage.o \
|
|
$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o
|
|
$(call msg,BINARY,,$@)
|
|
$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
|
|
|
|
$(OUTPUT)/veristat.o: $(BPFOBJ)
|
|
$(OUTPUT)/veristat: $(OUTPUT)/veristat.o
|
|
$(call msg,BINARY,,$@)
|
|
$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
|
|
|
|
EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \
|
|
prog_tests/tests.h map_tests/tests.h verifier/tests.h \
|
|
feature bpftool \
|
|
$(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h *.subskel.h \
|
|
no_alu32 bpf_gcc bpf_testmod.ko \
|
|
liburandom_read.so)
|
|
|
|
.PHONY: docs docs-clean
|