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| author |   Andrii Nakryiko <andrii@kernel.org> | 2020-12-03 12:46:26 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-12-03 17:38:20 -0800 |
| commit | 9f7fa225894c7fcb014f3699a402fcc4d896cb1c (patch) | |
| tree | edf41331c46aa34ac41b9b1545b112575a112edc /tools/testing/selftests/bpf/Makefile | |
| parent | libbpf: Add kernel module BTF support for CO-RE relocations (diff) | |
| download | linux-dev-9f7fa225894c7fcb014f3699a402fcc4d896cb1c.tar.xz linux-dev-9f7fa225894c7fcb014f3699a402fcc4d896cb1c.zip | |
selftests/bpf: Add bpf_testmod kernel module for testing
Add bpf_testmod module, which is conceptually out-of-tree module and provides
ways for selftests/bpf to test various kernel module-related functionality:
raw tracepoint, fentry/fexit/fmod_ret, etc. This module will be auto-loaded by
test_progs test runner and expected by some of selftests to be present and
loaded.
Pahole currently isn't able to generate BTF for static functions in kernel
modules, so make sure traced function is global.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-7-andrii@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 371b022d932c..ac25ba5d0d6c 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -80,7 +80,7 @@ TEST_PROGS_EXTENDED := with_addr.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_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko TEST_CUSTOM_PROGS = urandom_read @@ -104,6 +104,7 @@ OVERRIDE_TARGETS := 1 override define CLEAN $(call msg,CLEAN) $(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) + $(Q)$(MAKE) -C bpf_testmod clean endef include ../lib.mk @@ -136,6 +137,11 @@ $(OUTPUT)/urandom_read: urandom_read.c $(call msg,BINARY,,$@) $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1 +$(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) + $(call msg,MOD,,$@) + $(Q)$(MAKE) $(submake_extras) -C bpf_testmod + $(Q)cp bpf_testmod/bpf_testmod.ko $@ + $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) $(call msg,CC,,$@) $(Q)$(CC) -c $(CFLAGS) -o $@ $< @@ -388,7 +394,7 @@ 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 -TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ +TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \ ima_setup.sh \ $(wildcard progs/btf_dump_test_case_*.c) TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE @@ -460,4 +466,4 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.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) + $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko) |