diff options
Diffstat (limited to 'tools/bpf/bpftool/Makefile')
| -rw-r--r-- | tools/bpf/bpftool/Makefile | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index c4e810335810..9e85f101be85 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -55,14 +55,15 @@ ifneq ($(EXTRA_LDFLAGS),) LDFLAGS += $(EXTRA_LDFLAGS) endif -LIBS = $(LIBBPF) -lelf -lz - INSTALL ?= install RM ?= rm -f +CLANG ?= clang FEATURE_USER = .bpftool -FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib -FEATURE_DISPLAY = libbfd disassembler-four-args zlib +FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \ + clang-bpf-global-var +FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \ + clang-bpf-global-var check_feat := 1 NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall @@ -88,6 +89,12 @@ ifeq ($(feature-reallocarray), 0) CFLAGS += -DCOMPAT_NEED_REALLOCARRAY endif +LIBS = $(LIBBPF) -lelf -lz +ifeq ($(feature-libcap), 1) +CFLAGS += -DUSE_LIBCAP +LIBS += -lcap +endif + include $(wildcard $(OUTPUT)*.d) all: $(OUTPUT)bpftool @@ -110,21 +117,47 @@ SRCS += $(BFD_SRCS) endif OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o +_OBJS = $(filter-out $(OUTPUT)prog.o,$(OBJS)) $(OUTPUT)_prog.o + +ifeq ($(feature-clang-bpf-global-var),1) + __OBJS = $(OBJS) +else + __OBJS = $(_OBJS) +endif + +$(OUTPUT)_prog.o: prog.c + $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -DBPFTOOL_WITHOUT_SKELETONS -o $@ $< + +$(OUTPUT)_bpftool: $(_OBJS) $(LIBBPF) + $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(_OBJS) $(LIBS) + +skeleton/profiler.bpf.o: skeleton/profiler.bpf.c $(LIBBPF) + $(QUIET_CLANG)$(CLANG) \ + -I$(srctree)/tools/include/uapi/ \ + -I$(LIBBPF_PATH) -I$(srctree)/tools/lib \ + -g -O2 -target bpf -c $< -o $@ + +profiler.skel.h: $(OUTPUT)_bpftool skeleton/profiler.bpf.o + $(QUIET_GEN)$(OUTPUT)./_bpftool gen skeleton skeleton/profiler.bpf.o > $@ + +$(OUTPUT)prog.o: prog.c profiler.skel.h + $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c - $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $< + $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< $(OUTPUT)feature.o: | zdep -$(OUTPUT)bpftool: $(OBJS) $(LIBBPF) - $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(LIBS) +$(OUTPUT)bpftool: $(__OBJS) $(LIBBPF) + $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(__OBJS) $(LIBS) $(OUTPUT)%.o: %.c - $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $< + $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< clean: $(LIBBPF)-clean $(call QUIET_CLEAN, bpftool) $(Q)$(RM) -- $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d + $(Q)$(RM) -- $(OUTPUT)_bpftool profiler.skel.h skeleton/profiler.bpf.o $(Q)$(RM) -r -- $(OUTPUT)libbpf/ $(call QUIET_CLEAN, core-gen) $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpftool |