netdev - [PATCH bpf 1/2] selftests/bpf: fix test_verifier/test

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Date:   Tue, 16 Jul 2019 12:38:36 -0700
From:   Andrii Nakryiko <andriin@...com>
To:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>,
        <daniel@...earbox.net>, <ast@...com>
CC:     <andrii.nakryiko@...il.com>, <kernel-team@...com>,
        Andrii Nakryiko <andriin@...com>,
        Ilya Leoshkevich <iii@...ux.ibm.com>,
        Stanislav Fomichev <sdf@...gle.com>,
        Martin KaFai Lau <kafai@...com>
Subject: [PATCH bpf 1/2] selftests/bpf: fix test_verifier/test_maps make dependencies

e46fc22e60a4 ("selftests/bpf: make directory prerequisites order-only")
exposed existing problem in Makefile for test_verifier and test_maps tests:
their dependency on auto-generated header file with a list of all tests wasn't
recorded explicitly. This patch fixes these issues.

Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps")
Fixes: 6b7b6995c43e ("selftests: bpf: tests.h should depend on .c files, not the output")
Cc: Ilya Leoshkevich <iii@...ux.ibm.com>
Cc: Stanislav Fomichev <sdf@...gle.com>
Cc: Martin KaFai Lau <kafai@...com>
Signed-off-by: Andrii Nakryiko <andriin@...com>
---
 tools/testing/selftests/bpf/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 1296253b3422..9bc68d8abc5f 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -86,8 +86,6 @@ $(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c
 $(OUTPUT)/test_stub.o: test_stub.c
 	$(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) -c -o $@ $<
 
-$(OUTPUT)/test_maps: map_tests/*.c
-
 BPFOBJ := $(OUTPUT)/libbpf.a
 
 $(TEST_GEN_PROGS): $(OUTPUT)/test_stub.o $(BPFOBJ)
@@ -257,9 +255,10 @@ 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)
-MAP_TESTS_FILES := $(wildcard map_tests/*.c)
+$(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 */'; \
@@ -276,6 +275,7 @@ $(MAP_TESTS_H): $(MAP_TESTS_FILES) | $(MAP_TESTS_DIR)
 VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
 test_verifier.c: $(VERIFIER_TESTS_H)
 $(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
+$(OUTPUT)/test_verifier: test_verifier.c $(VERIFIER_TESTS_H)
 
 VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
 $(VERIFIER_TESTS_DIR):
-- 
2.17.1