diff options
Diffstat (limited to 'tools/perf/Makefile.perf')
| -rw-r--r-- | tools/perf/Makefile.perf | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index f4df7534026d..5345ac70cd83 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -126,6 +126,8 @@ include ../scripts/utilities.mak # # Define NO_LIBDEBUGINFOD if you do not want support debuginfod # +# Define BUILD_BPF_SKEL to enable BPF skeletons +# # As per kernel Makefile, avoid funny character set dependencies unexport LC_ALL @@ -175,6 +177,12 @@ endef LD += $(EXTRA_LDFLAGS) +HOSTCC ?= gcc +HOSTLD ?= ld +HOSTAR ?= ar +CLANG ?= clang +LLVM_STRIP ?= llvm-strip + PKG_CONFIG = $(CROSS_COMPILE)pkg-config RM = rm -f @@ -730,7 +738,8 @@ prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioc $(x86_arch_prctl_code_array) \ $(rename_flags_array) \ $(arch_errno_name_array) \ - $(sync_file_range_arrays) + $(sync_file_range_arrays) \ + bpf-skel $(OUTPUT)%.o: %.c prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ @@ -1003,7 +1012,43 @@ config-clean: python-clean: $(python-clean) -clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean config-clean fixdep-clean python-clean +SKEL_OUT := $(abspath $(OUTPUT)util/bpf_skel) +SKEL_TMP_OUT := $(abspath $(SKEL_OUT)/.tmp) +SKELETONS := $(SKEL_OUT)/bpf_prog_profiler.skel.h + +ifdef BUILD_BPF_SKEL +BPFTOOL := $(SKEL_TMP_OUT)/bootstrap/bpftool +LIBBPF_SRC := $(abspath ../lib/bpf) +BPF_INCLUDE := -I$(SKEL_TMP_OUT)/.. -I$(BPF_PATH) -I$(LIBBPF_SRC)/.. + +$(SKEL_TMP_OUT): + $(Q)$(MKDIR) -p $@ + +$(BPFTOOL): | $(SKEL_TMP_OUT) + CFLAGS= $(MAKE) -C ../bpf/bpftool \ + OUTPUT=$(SKEL_TMP_OUT)/ bootstrap + +$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(LIBBPF) | $(SKEL_TMP_OUT) + $(QUIET_CLANG)$(CLANG) -g -O2 -target bpf $(BPF_INCLUDE) \ + -c $(filter util/bpf_skel/%.bpf.c,$^) -o $@ && $(LLVM_STRIP) -g $@ + +$(SKEL_OUT)/%.skel.h: $(SKEL_TMP_OUT)/%.bpf.o | $(BPFTOOL) + $(QUIET_GENSKEL)$(BPFTOOL) gen skeleton $< > $@ + +bpf-skel: $(SKELETONS) + +.PRECIOUS: $(SKEL_TMP_OUT)/%.bpf.o + +else # BUILD_BPF_SKEL + +bpf-skel: + +endif # BUILD_BPF_SKEL + +bpf-skel-clean: + $(call QUIET_CLEAN, bpf-skel) $(RM) -r $(SKEL_TMP_OUT) $(SKELETONS) + +clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean $(LIBPERF)-clean config-clean fixdep-clean python-clean bpf-skel-clean $(call QUIET_CLEAN, core-objs) $(RM) $(LIBPERF_A) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS) $(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete $(Q)$(RM) $(OUTPUT).config-detected |