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selftests: bpf: fix compilation with out-of-tree $(OUTPUT)

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A bunch of related changes lumped together:
* Create prog_tests and verifier output directories; these don't exist with
  out-of-tree $(OUTPUT)
* Add missing -I (via separate TEST_{PROGS,VERIFIER}_CFLAGS) for the main tree
  ($(PWD) != $(OUTPUT) for out-of-tree)
* Add libbpf.a dependency for test_progs_32 (parallel make fails otherwise)
* Add missing "; \" after "cd" when generating test.h headers

Tested by:
$ alias m="make -s -j$(nproc)"
$ m -C tools/testing/selftests/bpf/ clean
$ m -C tools/lib/bpf/ clean
$ rm -rf xxx; mkdir xxx; m -C tools/testing/selftests/bpf/ OUTPUT=$PWD/xxx
$ m -C tools/testing/selftests/bpf/

Fixes: 3f30658830 ("selftests: bpf: break up test_progs - preparations")
Fixes: 2dfb40121e ("selftests: bpf: prepare for break up of verifier tests")
Fixes: 3ef84346c5 ("selftests: bpf: makefile support sub-register code-gen test mode")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Stanislav Fomichev 2019-03-06 11:59:26 -08:00 committed by Daniel Borkmann
parent 17a90a7884
commit e78e00bd47
1 changed files with 23 additions and 10 deletions
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33
tools/testing/selftests/bpf/Makefile
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@ -153,6 +153,9 @@ endif
endif
endif
TEST_PROGS_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
@ -162,13 +165,15 @@ $(ALU32_BUILD_DIR):
$(ALU32_BUILD_DIR)/urandom_read: $(OUTPUT)/urandom_read
cp $< $@
$(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(ALU32_BUILD_DIR) \
$(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(OUTPUT)/libbpf.a\
$(ALU32_BUILD_DIR) \
$(ALU32_BUILD_DIR)/urandom_read
$(CC) $(CFLAGS) -o $(ALU32_BUILD_DIR)/test_progs_32 $< \
trace_helpers.c prog_tests/*.c $(OUTPUT)/libbpf.a $(LDLIBS)
$(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) \
-o $(ALU32_BUILD_DIR)/test_progs_32 \
test_progs.c trace_helpers.c prog_tests/*.c \
$(OUTPUT)/libbpf.a $(LDLIBS)
$(ALU32_BUILD_DIR)/test_progs_32: $(PROG_TESTS_H)
$(ALU32_BUILD_DIR)/test_progs_32: CFLAGS += -I$(OUTPUT)
$(ALU32_BUILD_DIR)/test_progs_32: prog_tests/*.c
$(ALU32_BUILD_DIR)/%.o: progs/%.c $(ALU32_BUILD_DIR) \
@ -202,12 +207,16 @@ endif
PROG_TESTS_H := $(OUTPUT)/prog_tests/tests.h
$(OUTPUT)/test_progs: $(PROG_TESTS_H)
$(OUTPUT)/test_progs: CFLAGS += -I$(OUTPUT)
$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)
$(OUTPUT)/test_progs: prog_tests/*.c
PROG_TESTS_DIR = $(OUTPUT)/prog_tests
$(PROG_TESTS_DIR):
mkdir -p $@
PROG_TESTS_FILES := $(wildcard prog_tests/*.c)
$(PROG_TESTS_H): $(PROG_TESTS_FILES)
$(shell ( cd prog_tests/
$(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)
$(shell ( cd prog_tests/; \
echo '/* Generated header, do not edit */'; \
echo '#ifdef DECLARE'; \
ls *.c 2> /dev/null | \
@ -221,11 +230,15 @@ $(PROG_TESTS_H): $(PROG_TESTS_FILES)
VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
$(OUTPUT)/test_verifier: $(VERIFIER_TESTS_H)
$(OUTPUT)/test_verifier: CFLAGS += -I$(OUTPUT)
$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
$(VERIFIER_TESTS_DIR):
mkdir -p $@
VERIFIER_TEST_FILES := $(wildcard verifier/*.c)
$(OUTPUT)/verifier/tests.h: $(VERIFIER_TEST_FILES)
$(shell ( cd verifier/
$(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)
$(shell ( cd verifier/; \
echo '/* Generated header, do not edit */'; \
echo '#ifdef FILL_ARRAY'; \
ls *.c 2> /dev/null | \