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1e46c09ec1
linux-brain/tools/testing/selftests/bpf/Makefile
David S. Miller 1e46c09ec1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 
Daniel Borkmann says:

====================
The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Add the ability to use unaligned chunks in the AF_XDP umem. By
   relaxing where the chunks can be placed, it allows to use an
   arbitrary buffer size and place whenever there is a free
   address in the umem. Helps more seamless DPDK AF_XDP driver
   integration. Support for i40e, ixgbe and mlx5e, from Kevin and
   Maxim.

2) Addition of a wakeup flag for AF_XDP tx and fill rings so the
   application can wake up the kernel for rx/tx processing which
   avoids busy-spinning of the latter, useful when app and driver
   is located on the same core. Support for i40e, ixgbe and mlx5e,
   from Magnus and Maxim.

3) bpftool fixes for printf()-like functions so compiler can actually
   enforce checks, bpftool build system improvements for custom output
   directories, and addition of 'bpftool map freeze' command, from Quentin.

4) Support attaching/detaching XDP programs from 'bpftool net' command,
   from Daniel.

5) Automatic xskmap cleanup when AF_XDP socket is released, and several
   barrier/{read,write}_once fixes in AF_XDP code, from Björn.

6) Relicense of bpf_helpers.h/bpf_endian.h for future libbpf
   inclusion as well as libbpf versioning improvements, from Andrii.

7) Several new BPF kselftests for verifier precision tracking, from Alexei.

8) Several BPF kselftest fixes wrt endianess to run on s390x, from Ilya.

9) And more BPF kselftest improvements all over the place, from Stanislav.

10) Add simple BPF map op cache for nfp driver to batch dumps, from Jakub.

11) AF_XDP socket umem mapping improvements for 32bit archs, from Ivan.

12) Add BPF-to-BPF call and BTF line info support for s390x JIT, from Yauheni.

13) Small optimization in arm64 JIT to spare 1 insns for BPF_MOD, from Jerin.

14) Fix an error check in bpf_tcp_gen_syncookie() helper, from Petar.

15) Various minor fixes and cleanups, from Nathan, Masahiro, Masanari,
    Peter, Wei, Yue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-06 16:49:17 +02:00

294 lines
9.5 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0
include ../../../../scripts/Kbuild.include
include ../../../scripts/Makefile.arch
LIBDIR := ../../../lib
BPFDIR := $(LIBDIR)/bpf
APIDIR := ../../../include/uapi
GENDIR := ../../../../include/generated
GENHDR := $(GENDIR)/autoconf.h
ifneq ($(wildcard $(GENHDR)),)
GENFLAGS := -DHAVE_GENHDR
endif
CLANG ?= clang
LLC ?= llc
LLVM_OBJCOPY ?= llvm-objcopy
LLVM_READELF ?= llvm-readelf
BTF_PAHOLE ?= pahole
CFLAGS += -g -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include \
-Dbpf_prog_load=bpf_prog_test_load \
-Dbpf_load_program=bpf_test_load_program
LDLIBS += -lcap -lelf -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_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_sockopt_inherit test_tcp_rtt
BPF_OBJ_FILES = $(patsubst %.c,%.o, $(notdir $(wildcard progs/*.c)))
TEST_GEN_FILES = $(BPF_OBJ_FILES)
BTF_C_FILES = $(wildcard progs/btf_dump_test_case_*.c)
TEST_FILES = $(BTF_C_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))
endif
# 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 \
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_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_libbpf_open 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 $@ $<
BPFOBJ := $(OUTPUT)/libbpf.a
$(TEST_GEN_PROGS): $(OUTPUT)/test_stub.o $(BPFOBJ)
$(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(OUTPUT)/libbpf.a
$(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)/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_sockopt_inherit: 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
# 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.
CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \
| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
$(CLANG_SYS_INCLUDES) \
-Wno-compare-distinct-pointer-types \
-D__TARGET_ARCH_$(SRCARCH)
$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline
$(OUTPUT)/test_queue_map.o: test_queue_stack_map.h
$(OUTPUT)/test_stack_map.o: test_queue_stack_map.h
$(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
ifneq ($(SUBREG_CODEGEN),)
ALU32_BUILD_DIR = $(OUTPUT)/alu32
TEST_CUSTOM_PROGS += $(ALU32_BUILD_DIR)/test_progs_32
$(ALU32_BUILD_DIR):
mkdir -p $@
$(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
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 $@
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 $@
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_FILES) | $(PROG_TESTS_H)
$(PROG_TESTS_H): $(PROG_TESTS_FILES) | $(PROG_TESTS_DIR)
$(shell ( cd prog_tests/; \
echo '/* Generated header, do not edit */'; \
ls *.c 2> /dev/null | \
sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@'; \
) > $(PROG_TESTS_H))
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_FILES) | $(MAP_TESTS_H)
$(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))
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_TEST_FILES) $(VERIFIER_TESTS_H)
$(VERIFIER_TESTS_H): $(VERIFIER_TEST_FILES) | $(VERIFIER_TESTS_DIR)
$(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))
EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(ALU32_BUILD_DIR) \
$(VERIFIER_TESTS_H) $(PROG_TESTS_H) $(MAP_TESTS_H) \
feature
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