[PATCH net-next 04/13] selftests: net: add a generic rule for BPF skeletons
flat view
COOLING11d
SUPERSEDED
From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Date: 2026-10-01 20:22:39
Also in:
bpf
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 4 in this series.
Revisions (4)
- v1 current
- v2 [diff vs current]
- v3 [diff vs current]
- v4 [diff vs current]
net/bpf.mk builds the BPF programs of the networking selftests, but a test that loads its program through a bpftool-generated skeleton has to bring its own rule for the header. Add a pattern rule that generates $(OUTPUT)/<name>.skel.h from $(OUTPUT)/<name>.bpf.o. BPFTOOL selects the bpftool binary and defaults to the one in PATH. xskxceiver, which moves to net/lib in the next patch, is the first user. Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> --- tools/testing/selftests/net/bpf.mk | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/tools/testing/selftests/net/bpf.mk b/tools/testing/selftests/net/bpf.mk
index a4f6755dd894..6a2f078fed9d 100644
--- a/tools/testing/selftests/net/bpf.mk
+++ b/tools/testing/selftests/net/bpf.mk@@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 # Rules to generate bpf objs CLANG ?= clang +BPFTOOL ?= bpftool SCRATCH_DIR := $(OUTPUT)/tools BUILD_DIR := $(SCRATCH_DIR)/build BPFDIR := $(top_srcdir)/tools/lib/bpf
@@ -42,6 +43,10 @@ $(BPF_PROG_OBJS): $(OUTPUT)/%.o : %.c $(BPFOBJ) | $(MAKE_DIRS) $(Q)$(CLANG) -O2 -g --target=bpf $(CCINCLUDE) $(CLANG_SYS_INCLUDES) \ -c $< -o $@ +$(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o + $(call msg,GEN-SKEL,,$@) + $(Q)$(BPFTOOL) gen skeleton $< name $(notdir $*) > $@ + $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ $(APIDIR)/linux/bpf.h \ | $(BUILD_DIR)/libbpf
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2.43.0