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-rw-r--r--tools/bpf/bpftool/Makefile31
1 files changed, 18 insertions, 13 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index 4c9d1ffc3fc7..39bc6f0f4f0b 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -17,27 +17,30 @@ endif
BPF_DIR = $(srctree)/tools/lib/bpf/
ifneq ($(OUTPUT),)
- BPF_PATH = $(OUTPUT)
+ LIBBPF_OUTPUT = $(OUTPUT)/libbpf/
+ LIBBPF_PATH = $(LIBBPF_OUTPUT)
else
- BPF_PATH = $(BPF_DIR)
+ LIBBPF_PATH = $(BPF_DIR)
endif
-LIBBPF = $(BPF_PATH)libbpf.a
+LIBBPF = $(LIBBPF_PATH)libbpf.a
-BPFTOOL_VERSION := $(shell make --no-print-directory -sC ../../.. kernelversion)
+BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
$(LIBBPF): FORCE
- $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) $(OUTPUT)libbpf.a
+ $(if $(LIBBPF_OUTPUT),@mkdir -p $(LIBBPF_OUTPUT))
+ $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) $(LIBBPF_OUTPUT)libbpf.a
$(LIBBPF)-clean:
$(call QUIET_CLEAN, libbpf)
- $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) clean >/dev/null
+ $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) clean >/dev/null
prefix ?= /usr/local
bash_compdir ?= /usr/share/bash-completion/completions
CFLAGS += -O2
-CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow -Wno-missing-field-initializers
+CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
+CFLAGS += $(filter-out -Wswitch-enum,$(EXTRA_WARNINGS))
CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
-I$(srctree)/kernel/bpf/ \
-I$(srctree)/tools/include \
@@ -52,7 +55,7 @@ ifneq ($(EXTRA_LDFLAGS),)
LDFLAGS += $(EXTRA_LDFLAGS)
endif
-LIBS = -lelf -lz $(LIBBPF)
+LIBS = $(LIBBPF) -lelf -lz
INSTALL ?= install
RM ?= rm -f
@@ -114,16 +117,18 @@ $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
$(OUTPUT)feature.o: | zdep
$(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
- $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
+ $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
$(OUTPUT)%.o: %.c
$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
clean: $(LIBBPF)-clean
$(call QUIET_CLEAN, bpftool)
- $(Q)$(RM) $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
+ $(Q)$(RM) -- $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
+ $(Q)$(RM) -r -- $(OUTPUT)libbpf/
$(call QUIET_CLEAN, core-gen)
- $(Q)$(RM) $(OUTPUT)FEATURE-DUMP.bpftool
+ $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpftool
+ $(Q)$(RM) -r -- $(OUTPUT)feature/
install: $(OUTPUT)bpftool
$(call QUIET_INSTALL, bpftool)
@@ -134,8 +139,8 @@ install: $(OUTPUT)bpftool
uninstall:
$(call QUIET_UNINST, bpftool)
- $(Q)$(RM) $(DESTDIR)$(prefix)/sbin/bpftool
- $(Q)$(RM) $(DESTDIR)$(bash_compdir)/bpftool
+ $(Q)$(RM) -- $(DESTDIR)$(prefix)/sbin/bpftool
+ $(Q)$(RM) -- $(DESTDIR)$(bash_compdir)/bpftool
doc:
$(call descend,Documentation)