Test %.bpf.o objects actually depend only on some libbpf headers.
Define a list of required headers and use it as TRUNNER_BPF_OBJS
dependency.
bpf_*.h list was determined by:
$ grep -rh 'include <bpf/bpf_' progs | sort -u
Link:
https://lore.kernel.org/bpf/CAEf4BzYQ-j2i_xjs94Nn=8+FVfkWt51mLZyiYKiz9oA4Z=pCeA@xxxxxxxxxxxxxx/
Signed-off-by: Ihor Solodrai <ihor.solodrai@xxxxx>
---
tools/testing/selftests/bpf/Makefile | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index c120617b64ad..53cc13b92ee2 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -516,6 +516,12 @@ xdp_features.skel.h-deps := xdp_features.bpf.o
LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps))
LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS))
+HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h) \
+ $(addprefix $(BPFDIR)/, bpf_core_read.h \
+ bpf_endian.h \
+ bpf_helpers.h \
+ bpf_tracing.h)
+
# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
# Parameters:
@@ -566,8 +572,7 @@ $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o: \
$(TRUNNER_BPF_PROGS_DIR)/%.c \
$(TRUNNER_BPF_PROGS_DIR)/*.h \
$$(INCLUDE_DIR)/vmlinux.h \
- $(wildcard $(BPFDIR)/bpf_*.h) \
- $(wildcard $(BPFDIR)/*.bpf.h) \
+ $(HEADERS_FOR_BPF_OBJS) \
| $(TRUNNER_OUTPUT) $$(BPFOBJ)
$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \
$(TRUNNER_BPF_CFLAGS) \
--
2.34.1
