Detect when bpftool source code changes and trigger rebuild within
selftests/bpf Makefile. Also fix few small formatting problems.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20200124054148.2455060-1-andriin@fb.com
DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
BPFTOOL ?= $(DEFAULT_BPFTOOL)
DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
BPFTOOL ?= $(DEFAULT_BPFTOOL)
-$(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BUILD_DIR)/bpftool
- $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
- OUTPUT=$(BUILD_DIR)/bpftool/ \
+$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
+ $(BPFOBJ) | $(BUILD_DIR)/bpftool
+ $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \
+ OUTPUT=$(BUILD_DIR)/bpftool/ \
prefix= DESTDIR=$(SCRATCH_DIR)/ install
prefix= DESTDIR=$(SCRATCH_DIR)/ install
-$(BPFOBJ): $(wildcard $(BPFDIR)/*.c $(BPFDIR)/*.h $(BPFDIR)/Makefile) \
+$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
../../../include/uapi/linux/bpf.h \
| $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
../../../include/uapi/linux/bpf.h \
| $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
- DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
+ DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(INCLUDE_DIR):
$(call msg,MKDIR,,$@)
$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(INCLUDE_DIR):
$(call msg,MKDIR,,$@)