555 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
			
		
		
	
	
			555 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
| # SPDX-License-Identifier: GPL-2.0
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| include ../../../build/Build.include
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| include ../../../scripts/Makefile.arch
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| include ../../../scripts/Makefile.include
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| 
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| CXX ?= $(CROSS_COMPILE)g++
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| 
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| CURDIR := $(abspath .)
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| TOOLSDIR := $(abspath ../../..)
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| LIBDIR := $(TOOLSDIR)/lib
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| BPFDIR := $(LIBDIR)/bpf
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| TOOLSINCDIR := $(TOOLSDIR)/include
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| BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
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| APIDIR := $(TOOLSINCDIR)/uapi
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| GENDIR := $(abspath ../../../../include/generated)
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| GENHDR := $(GENDIR)/autoconf.h
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| 
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| ifneq ($(wildcard $(GENHDR)),)
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|   GENFLAGS := -DHAVE_GENHDR
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| endif
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| 
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| BPF_GCC		?= $(shell command -v bpf-gcc;)
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| SAN_CFLAGS	?=
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| CFLAGS += -g -O0 -rdynamic -Wall $(GENFLAGS) $(SAN_CFLAGS)		\
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| 	  -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)		\
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| 	  -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT)			\
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| 	  -Dbpf_prog_load=bpf_prog_test_load				\
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| 	  -Dbpf_load_program=bpf_test_load_program
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| LDLIBS += -lcap -lelf -lz -lrt -lpthread
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| 
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| # Silence some warnings when compiled with clang
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| ifneq ($(LLVM),)
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| CFLAGS += -Wno-unused-command-line-argument
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| endif
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| 
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| # Order correspond to 'make run_tests' order
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| TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
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| 	test_verifier_log test_dev_cgroup \
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| 	test_sock test_sockmap get_cgroup_id_user \
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| 	test_cgroup_storage \
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| 	test_netcnt test_tcpnotify_user test_sysctl \
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| 	test_progs-no_alu32
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| 
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| # Also test bpf-gcc, if present
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| ifneq ($(BPF_GCC),)
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| TEST_GEN_PROGS += test_progs-bpf_gcc
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| endif
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| 
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| TEST_GEN_FILES = test_lwt_ip_encap.o \
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| 	test_tc_edt.o
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| TEST_FILES = xsk_prereqs.sh \
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| 	$(wildcard progs/btf_dump_test_case_*.c)
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| 
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| # Order correspond to 'make run_tests' order
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| TEST_PROGS := test_kmod.sh \
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| 	test_xdp_redirect.sh \
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| 	test_xdp_redirect_multi.sh \
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| 	test_xdp_meta.sh \
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| 	test_xdp_veth.sh \
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| 	test_offload.py \
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| 	test_sock_addr.sh \
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| 	test_tunnel.sh \
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| 	test_lwt_seg6local.sh \
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| 	test_lirc_mode2.sh \
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| 	test_skb_cgroup_id.sh \
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| 	test_flow_dissector.sh \
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| 	test_xdp_vlan_mode_generic.sh \
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| 	test_xdp_vlan_mode_native.sh \
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| 	test_lwt_ip_encap.sh \
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| 	test_tcp_check_syncookie.sh \
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| 	test_tc_tunnel.sh \
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| 	test_tc_edt.sh \
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| 	test_xdping.sh \
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| 	test_bpftool_build.sh \
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| 	test_bpftool.sh \
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| 	test_bpftool_metadata.sh \
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| 	test_doc_build.sh \
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| 	test_xsk.sh
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| 
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| TEST_PROGS_EXTENDED := with_addr.sh \
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| 	with_tunnels.sh \
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| 	test_xdp_vlan.sh
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| 
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| # Compile but not part of 'make run_tests'
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| TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
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| 	flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
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| 	test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
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| 	xdpxceiver xdp_redirect_multi
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| 
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| TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
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| 
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| # Emit succinct information message describing current building step
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| # $1 - generic step name (e.g., CC, LINK, etc);
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| # $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
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| # $3 - target (assumed to be file); only file name will be emitted;
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| # $4 - optional extra arg, emitted as-is, if provided.
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| ifeq ($(V),1)
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| Q =
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| msg =
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| else
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| Q = @
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| msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
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| MAKEFLAGS += --no-print-directory
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| submake_extras := feature_display=0
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| endif
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| 
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| # override lib.mk's default rules
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| OVERRIDE_TARGETS := 1
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| override define CLEAN
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| 	$(call msg,CLEAN)
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| 	$(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
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| 	$(Q)$(MAKE) -C bpf_testmod clean
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| 	$(Q)$(MAKE) docs-clean
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| endef
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| 
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| include ../lib.mk
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| 
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| SCRATCH_DIR := $(OUTPUT)/tools
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| BUILD_DIR := $(SCRATCH_DIR)/build
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| INCLUDE_DIR := $(SCRATCH_DIR)/include
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| BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
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| ifneq ($(CROSS_COMPILE),)
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| HOST_BUILD_DIR		:= $(BUILD_DIR)/host
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| HOST_SCRATCH_DIR	:= $(OUTPUT)/host-tools
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| else
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| HOST_BUILD_DIR		:= $(BUILD_DIR)
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| HOST_SCRATCH_DIR	:= $(SCRATCH_DIR)
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| endif
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| HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
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| RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
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| 
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| VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
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| 		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\
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| 		     ../../../../vmlinux				\
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| 		     /sys/kernel/btf/vmlinux				\
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| 		     /boot/vmlinux-$(shell uname -r)
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| VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
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| ifeq ($(VMLINUX_BTF),)
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| $(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
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| endif
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| 
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| # Define simple and short `make test_progs`, `make test_sysctl`, etc targets
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| # to build individual tests.
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| # NOTE: Semicolon at the end is critical to override lib.mk's default static
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| # rule for binaries.
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| $(notdir $(TEST_GEN_PROGS)						\
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| 	 $(TEST_PROGS)							\
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| 	 $(TEST_PROGS_EXTENDED)						\
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| 	 $(TEST_GEN_PROGS_EXTENDED)					\
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| 	 $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
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| 
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| # sort removes libbpf duplicates when not cross-building
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| MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf	       \
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| 	       $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids      \
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| 	       $(INCLUDE_DIR))
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| $(MAKE_DIRS):
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| 	$(call msg,MKDIR,,$@)
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| 	$(Q)mkdir -p $@
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| 
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| $(OUTPUT)/%.o: %.c
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| 	$(call msg,CC,,$@)
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| 	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
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| 
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| $(OUTPUT)/%:%.c
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| 	$(call msg,BINARY,,$@)
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| 	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
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| 
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| $(OUTPUT)/urandom_read: urandom_read.c
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| 	$(call msg,BINARY,,$@)
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| 	$(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1
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| 
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| $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
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| 	$(call msg,MOD,,$@)
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| 	$(Q)$(RM) bpf_testmod/bpf_testmod.ko # force re-compilation
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| 	$(Q)$(MAKE) $(submake_extras) -C bpf_testmod
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| 	$(Q)cp bpf_testmod/bpf_testmod.ko $@
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| 
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| $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
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| 	$(call msg,CC,,$@)
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| 	$(Q)$(CC) -c $(CFLAGS) -o $@ $<
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| 
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| DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
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| 
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| $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
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| 	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower	\
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| 		    OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF)   \
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| 		    BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) &&	\
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| 		    cp $(SCRATCH_DIR)/runqslower $@
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| 
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| $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ)
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| 
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| $(OUTPUT)/test_dev_cgroup: cgroup_helpers.c
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| $(OUTPUT)/test_skb_cgroup_id_user: cgroup_helpers.c
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| $(OUTPUT)/test_sock: cgroup_helpers.c
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| $(OUTPUT)/test_sock_addr: cgroup_helpers.c
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| $(OUTPUT)/test_sockmap: cgroup_helpers.c
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| $(OUTPUT)/test_tcpnotify_user: cgroup_helpers.c trace_helpers.c
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| $(OUTPUT)/get_cgroup_id_user: cgroup_helpers.c
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| $(OUTPUT)/test_cgroup_storage: cgroup_helpers.c
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| $(OUTPUT)/test_netcnt: cgroup_helpers.c
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| $(OUTPUT)/test_sock_fields: cgroup_helpers.c
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| $(OUTPUT)/test_sysctl: cgroup_helpers.c
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| 
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| BPFTOOL ?= $(DEFAULT_BPFTOOL)
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| $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
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| 		    $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
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| 	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)			       \
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| 		    CC=$(HOSTCC) LD=$(HOSTLD)				       \
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| 		    EXTRA_CFLAGS='-g -O0'				       \
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| 		    OUTPUT=$(HOST_BUILD_DIR)/bpftool/			       \
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| 		    prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install
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| 
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| all: docs
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| 
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| docs:
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| 	$(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras)	\
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| 	            -f Makefile.docs					\
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| 	            prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
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| 
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| docs-clean:
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| 	$(Q)$(MAKE) $(submake_extras)					\
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| 	            -f Makefile.docs					\
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| 	            prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
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| 
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| $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
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| 	   ../../../include/uapi/linux/bpf.h                                   \
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| 	   | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf
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| 	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
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| 		    EXTRA_CFLAGS='-g -O0'				       \
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| 		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
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| 
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| ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
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| $(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)                \
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| 	   ../../../include/uapi/linux/bpf.h                                   \
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| 	   | $(INCLUDE_DIR) $(HOST_BUILD_DIR)/libbpf
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| 	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR)                             \
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| 		    EXTRA_CFLAGS='-g -O0'				       \
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| 		    OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \
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| 		    DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
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| endif
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| 
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| $(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
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| ifeq ($(VMLINUX_H),)
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| 	$(call msg,GEN,,$@)
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| 	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
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| else
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| 	$(call msg,CP,,$@)
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| 	$(Q)cp "$(VMLINUX_H)" $@
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| endif
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| 
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| $(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids	\
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| 		       $(TOOLSDIR)/bpf/resolve_btfids/main.c	\
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| 		       $(TOOLSDIR)/lib/rbtree.c			\
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| 		       $(TOOLSDIR)/lib/zalloc.c			\
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| 		       $(TOOLSDIR)/lib/string.c			\
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| 		       $(TOOLSDIR)/lib/ctype.c			\
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| 		       $(TOOLSDIR)/lib/str_error_r.c
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| 	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids	\
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| 		CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \
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| 		OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
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| 
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| # Get Clang's default includes on this system, as opposed to those seen by
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| # '-target bpf'. This fixes "missing" files on some architectures/distros,
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| # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
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| #
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| # Use '-idirafter': Don't interfere with include mechanics except where the
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| # build would have failed anyways.
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| define get_sys_includes
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| $(shell $(1) -v -E - </dev/null 2>&1 \
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| 	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
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| $(shell $(1) -dM -E - </dev/null | grep '#define __riscv_xlen ' | sed 's/#define /-D/' | sed 's/ /=/')
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| endef
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| 
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| # Determine target endianness.
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| IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
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| 			grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
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| MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
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| 
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| CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
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| BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) 			\
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| 	     -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)			\
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| 	     -I$(abspath $(OUTPUT)/../usr/include)
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| 
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| CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
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| 	       -Wno-compare-distinct-pointer-types
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| 
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| $(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
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| $(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
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| 
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| $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
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| 
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| # Build BPF object using Clang
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| # $1 - input .c file
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| # $2 - output .o file
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| # $3 - CFLAGS
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| define CLANG_BPF_BUILD_RULE
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| 	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
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| 	$(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v3
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| endef
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| # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
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| define CLANG_NOALU32_BPF_BUILD_RULE
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| 	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
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| 	$(Q)$(CLANG) $3 -O2 -target bpf -c $1 -o $2 -mcpu=v2
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| endef
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| # Build BPF object using GCC
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| define GCC_BPF_BUILD_RULE
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| 	$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
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| 	$(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2
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| endef
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| 
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| SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
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| 
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| LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h		\
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| 		linked_vars.skel.h linked_maps.skel.h
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| 
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| LSKELS := kfunc_call_test.c fentry_test.c fexit_test.c fexit_sleep.c \
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| 	test_ksyms_module.c test_ringbuf.c atomics.c trace_printk.c
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| SKEL_BLACKLIST += $$(LSKELS)
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| 
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| test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o
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| linked_funcs.skel.h-deps := linked_funcs1.o linked_funcs2.o
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| linked_vars.skel.h-deps := linked_vars1.o linked_vars2.o
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| linked_maps.skel.h-deps := linked_maps1.o linked_maps2.o
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| 
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| LINKED_BPF_SRCS := $(patsubst %.o,%.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps)))
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| 
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| RHSKIP_FILTER := awk -F: '!/:/ || /:$(ARCH)/ {print $$1}'
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| RHSKIP_FILTER_EVAL := $(subst $$,$$$$,$(RHSKIP_FILTER))
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| 
 | |
| # Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
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| # $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
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| # Parameters:
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| # $1 - test runner base binary name (e.g., test_progs)
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| # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
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| define DEFINE_TEST_RUNNER
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| 
 | |
| TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
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| TRUNNER_BINARY := $1$(if $2,-)$2
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| TRUNNER_TESTS_RHSKIP := $$(shell $(RHSKIP_FILTER_EVAL)			\
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| 				 $$(TRUNNER_TESTS_DIR)/rhskip 2>/dev/null)
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| TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o,	\
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| 				 $$(filter-out $$(TRUNNER_TESTS_RHSKIP),\
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| 					       $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c))))
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| TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,		\
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| 				 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
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| TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
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| TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
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| TRUNNER_BPF_RHSKIP := $$(shell $(RHSKIP_FILTER_EVAL)			\
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| 			       $$(TRUNNER_BPF_PROGS_DIR)/rhskip 2>/dev/null)
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| TRUNNER_BPF_SRCS := $$(filter-out $$(TRUNNER_BPF_RHSKIP),		\
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| 				  $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c)))
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| TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o, $$(TRUNNER_BPF_SRCS))
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| TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,	\
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| 				 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
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| 					       $$(TRUNNER_BPF_SRCS)))
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| TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS))
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| TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
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| TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
 | |
| 
 | |
| # Evaluate rules now with extra TRUNNER_XXX variables above already defined
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| $$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
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| 
 | |
| endef
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| 
 | |
| # Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
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| # set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
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| # $1 - test runner base binary name (e.g., test_progs)
 | |
| # $2 - test runner extra "flavor" (e.g., no_alu32, gcc-bpf, etc)
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| define DEFINE_TEST_RUNNER_RULES
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| 
 | |
| ifeq ($($(TRUNNER_OUTPUT)-dir),)
 | |
| $(TRUNNER_OUTPUT)-dir := y
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| $(TRUNNER_OUTPUT):
 | |
| 	$$(call msg,MKDIR,,$$@)
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| 	$(Q)mkdir -p $$@
 | |
| endif
 | |
| 
 | |
| # ensure we set up BPF objects generation rule just once for a given
 | |
| # input/output directory combination
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| ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
 | |
| $(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
 | |
| $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
 | |
| 		     $(TRUNNER_BPF_PROGS_DIR)/%.c			\
 | |
| 		     $(TRUNNER_BPF_PROGS_DIR)/*.h			\
 | |
| 		     $$(INCLUDE_DIR)/vmlinux.h				\
 | |
| 		     $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 | |
| 	$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,			\
 | |
| 					  $(TRUNNER_BPF_CFLAGS))
 | |
| 
 | |
| $(TRUNNER_BPF_SKELS): %.skel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
 | |
| 	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
 | |
| 	$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
 | |
| 	$(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@
 | |
| 
 | |
| $(TRUNNER_BPF_LSKELS): %.lskel.h: %.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
 | |
| 	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
 | |
| 	$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
 | |
| 	$(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.linked3.o) name $$(notdir $$(<:.o=)) > $$@
 | |
| 
 | |
| $(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_BPF_OBJS) $(BPFTOOL) | $(TRUNNER_OUTPUT)
 | |
| 	$$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.o))
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o)
 | |
| 	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o)
 | |
| 	$(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
 | |
| 	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
 | |
| 	$(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@
 | |
| endif
 | |
| 
 | |
| # ensure we set up tests.h header generation rule just once
 | |
| ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
 | |
| $(TRUNNER_TESTS_DIR)-tests-hdr := y
 | |
| $(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c				\
 | |
| 		      $(wildcard $(TRUNNER_TESTS_DIR)/rhskip)
 | |
| 	$$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
 | |
| 	$$(shell ( cd $(TRUNNER_TESTS_DIR);				\
 | |
| 		  echo '/* Generated header, do not edit */';		\
 | |
| 		  ls *.c 2> /dev/null |					\
 | |
| 		  ([ -f rhskip ] && 					\
 | |
| 		   grep -v "`$(RHSKIP_FILTER_EVAL) rhskip`" || cat	\
 | |
| 		  ) |							\
 | |
| 			sed -e 's@\([^\.]*\)\.c@DEFINE_TEST(\1)@';	\
 | |
| 		 ) > $$@)
 | |
| endif
 | |
| 
 | |
| # compile individual test files
 | |
| # Note: we cd into output directory to ensure embedded BPF object is found
 | |
| $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:			\
 | |
| 		      $(TRUNNER_TESTS_DIR)/%.c				\
 | |
| 		      $(TRUNNER_EXTRA_HDRS)				\
 | |
| 		      $(TRUNNER_BPF_OBJS)				\
 | |
| 		      $(TRUNNER_BPF_SKELS)				\
 | |
| 		      $(TRUNNER_BPF_LSKELS)				\
 | |
| 		      $(TRUNNER_BPF_SKELS_LINKED)			\
 | |
| 		      $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 | |
| 	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
 | |
| 	$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
 | |
| 
 | |
| $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
 | |
| 		       %.c						\
 | |
| 		       $(TRUNNER_EXTRA_HDRS)				\
 | |
| 		       $(TRUNNER_TESTS_HDR)				\
 | |
| 		       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
 | |
| 	$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
 | |
| 	$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
 | |
| 
 | |
| # non-flavored in-srctree builds receive special treatment, in particular, we
 | |
| # do not need to copy extra resources (see e.g. test_btf_dump_case())
 | |
| $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
 | |
| ifneq ($2:$(OUTPUT),:$(shell pwd))
 | |
| 	$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
 | |
| 	$(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/
 | |
| endif
 | |
| 
 | |
| $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)			\
 | |
| 			     $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)		\
 | |
| 			     $(RESOLVE_BTFIDS)				\
 | |
| 			     | $(TRUNNER_BINARY)-extras
 | |
| 	$$(call msg,BINARY,,$$@)
 | |
| 	$(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
 | |
| 	$(Q)$(RESOLVE_BTFIDS) --no-fail --btf $(TRUNNER_OUTPUT)/btf_data.o $$@
 | |
| 
 | |
| endef
 | |
| 
 | |
| # Define test_progs test runner.
 | |
| TRUNNER_TESTS_DIR := prog_tests
 | |
| TRUNNER_BPF_PROGS_DIR := progs
 | |
| TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c	\
 | |
| 			 network_helpers.c testing_helpers.c		\
 | |
| 			 btf_helpers.c	flow_dissector_load.h
 | |
| TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko	\
 | |
| 		       ima_setup.sh					\
 | |
| 		       $(wildcard progs/btf_dump_test_case_*.c)
 | |
| TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
 | |
| TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
 | |
| TRUNNER_BPF_CFLAGS += -DENABLE_ATOMICS_TESTS
 | |
| $(eval $(call DEFINE_TEST_RUNNER,test_progs))
 | |
| 
 | |
| # Define test_progs-no_alu32 test runner.
 | |
| TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
 | |
| TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
 | |
| $(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
 | |
| 
 | |
| # Define test_progs BPF-GCC-flavored test runner.
 | |
| ifneq ($(BPF_GCC),)
 | |
| TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
 | |
| TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc)
 | |
| $(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
 | |
| endif
 | |
| 
 | |
| # Define test_maps test runner.
 | |
| TRUNNER_TESTS_DIR := map_tests
 | |
| TRUNNER_BPF_PROGS_DIR := progs
 | |
| TRUNNER_EXTRA_SOURCES := test_maps.c
 | |
| TRUNNER_EXTRA_FILES :=
 | |
| TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
 | |
| TRUNNER_BPF_CFLAGS :=
 | |
| $(eval $(call DEFINE_TEST_RUNNER,test_maps))
 | |
| 
 | |
| # Define test_verifier test runner.
 | |
| # It is much simpler than test_maps/test_progs and sufficiently different from
 | |
| # them (e.g., test.h is using completely pattern), that it's worth just
 | |
| # explicitly defining all the rules explicitly.
 | |
| verifier/tests.h: verifier/*.c \
 | |
| 		  $(wildcard verifier/rhskip)
 | |
| 	$(shell ( cd verifier/; \
 | |
| 		  echo '/* Generated header, do not edit */'; \
 | |
| 		  echo '#ifdef FILL_ARRAY'; \
 | |
| 		  ls *.c 2> /dev/null | \
 | |
| 		  ([ -f rhskip ] && \
 | |
| 		   grep -v "`$(RHSKIP_FILTER) rhskip`" || cat \
 | |
| 		  ) | \
 | |
| 		  sed -e 's@\(.*\)@#include \"\1\"@'; \
 | |
| 		  echo '#endif' \
 | |
| 		) > verifier/tests.h)
 | |
| $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
 | |
| 	$(call msg,BINARY,,$@)
 | |
| 	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 | |
| 
 | |
| # Make sure we are able to include and link libbpf against c++.
 | |
| $(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
 | |
| 	$(call msg,CXX,,$@)
 | |
| 	$(Q)$(CXX) $(CFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@
 | |
| 
 | |
| # Benchmark runner
 | |
| $(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ)
 | |
| 	$(call msg,CC,,$@)
 | |
| 	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
 | |
| $(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
 | |
| $(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
 | |
| $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
 | |
| 			    $(OUTPUT)/perfbuf_bench.skel.h
 | |
| $(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)
 | |
| $(OUTPUT)/bench: LDLIBS += -lm
 | |
| $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
 | |
| 		 $(OUTPUT)/bench_count.o \
 | |
| 		 $(OUTPUT)/bench_rename.o \
 | |
| 		 $(OUTPUT)/bench_trigger.o \
 | |
| 		 $(OUTPUT)/bench_ringbufs.o
 | |
| 	$(call msg,BINARY,,$@)
 | |
| 	$(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
 | |
| 
 | |
| EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR)	\
 | |
| 	prog_tests/tests.h map_tests/tests.h verifier/tests.h		\
 | |
| 	feature								\
 | |
| 	$(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h no_alu32 bpf_gcc bpf_testmod.ko)
 | |
| 
 | |
| .PHONY: docs docs-clean
 |