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$(if $(OUTPUT),$(OUTPUT),.) \
-I$(srctree)/kernel/bpf/ \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi \
FEATURE_USER = .bpftool
FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \
- clang-bpf-global-var
+ clang-bpf-co-re
FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \
- clang-bpf-global-var
+ clang-bpf-co-re
check_feat := 1
NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall
BOOTSTRAP_OBJS = $(addprefix $(OUTPUT),main.o common.o json_writer.o gen.o btf.o)
OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
-ifneq ($(feature-clang-bpf-global-var),1)
- CFLAGS += -DBPFTOOL_WITHOUT_SKELETONS
-endif
+VMLINUX_BTF_PATHS := $(if $(O),$(O)/vmlinux) \
+ $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
+ ../../../vmlinux \
+ /sys/kernel/btf/vmlinux \
+ /boot/vmlinux-$(shell uname -r)
+VMLINUX_BTF := $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
+
+ifneq ($(VMLINUX_BTF),)
+ifeq ($(feature-clang-bpf-co-re),1)
+
+BUILD_BPF_SKELS := 1
+
+$(OUTPUT)vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL_BOOTSTRAP)
+ $(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) btf dump file $< format c > $@
-skeleton/profiler.bpf.o: skeleton/profiler.bpf.c $(LIBBPF)
+$(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF)
$(QUIET_CLANG)$(CLANG) \
+ -I$(if $(OUTPUT),$(OUTPUT),.) \
-I$(srctree)/tools/include/uapi/ \
- -I$(LIBBPF_PATH) -I$(srctree)/tools/lib \
+ -I$(LIBBPF_PATH) \
+ -I$(srctree)/tools/lib \
-g -O2 -target bpf -c $< -o $@
-profiler.skel.h: $(BPFTOOL_BOOTSTRAP) skeleton/profiler.bpf.o
- $(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) gen skeleton skeleton/profiler.bpf.o > $@
+$(OUTPUT)%.skel.h: $(OUTPUT)%.bpf.o $(BPFTOOL_BOOTSTRAP)
+ $(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) gen skeleton $< > $@
+
+$(OUTPUT)prog.o: $(OUTPUT)profiler.skel.h
+
+endif
+endif
-$(OUTPUT)prog.o: prog.c profiler.skel.h
+CFLAGS += $(if BUILD_BPF_SKELS,,-DBPFTOOL_WITHOUT_SKELETONS)
$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $<
clean: $(LIBBPF)-clean
$(call QUIET_CLEAN, bpftool)
$(Q)$(RM) -- $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
- $(Q)$(RM) -- $(BPFTOOL_BOOTSTRAP) profiler.skel.h skeleton/profiler.bpf.o
+ $(Q)$(RM) -- $(BPFTOOL_BOOTSTRAP) $(OUTPUT)*.skel.h $(OUTPUT)vmlinux.h
$(Q)$(RM) -r -- $(OUTPUT)libbpf/
$(call QUIET_CLEAN, core-gen)
$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpftool
zdep:
@if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
+.SECONDARY:
.PHONY: all FORCE clean install uninstall zdep
.PHONY: doc doc-clean doc-install doc-uninstall
.DEFAULT_GOAL := all
+++ /dev/null
-/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
-#ifndef __PROFILER_H
-#define __PROFILER_H
-
-/* useful typedefs from vmlinux.h */
-
-typedef signed char __s8;
-typedef unsigned char __u8;
-typedef short int __s16;
-typedef short unsigned int __u16;
-typedef int __s32;
-typedef unsigned int __u32;
-typedef long long int __s64;
-typedef long long unsigned int __u64;
-
-typedef __s8 s8;
-typedef __u8 u8;
-typedef __s16 s16;
-typedef __u16 u16;
-typedef __s32 s32;
-typedef __u32 u32;
-typedef __s64 s64;
-typedef __u64 u64;
-
-enum {
- false = 0,
- true = 1,
-};
-
-#ifdef __CHECKER__
-#define __bitwise__ __attribute__((bitwise))
-#else
-#define __bitwise__
-#endif
-
-typedef __u16 __bitwise__ __le16;
-typedef __u16 __bitwise__ __be16;
-typedef __u32 __bitwise__ __le32;
-typedef __u32 __bitwise__ __be32;
-typedef __u64 __bitwise__ __le64;
-typedef __u64 __bitwise__ __be64;
-
-typedef __u16 __bitwise__ __sum16;
-typedef __u32 __bitwise__ __wsum;
-
-#endif /* __PROFILER_H */