1# SPDX-License-Identifier: GPL-2.0 2include ../scripts/Makefile.include 3 4prefix ?= /usr/local 5 6LEX = flex 7YACC = bison 8MAKE = make 9INSTALL ?= install 10 11CFLAGS += -Wall -O2 12CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi \ 13 -I$(srctree)/tools/include 14CFLAGS += $(EXTRA_CFLAGS) 15 16# This will work when bpf is built in tools env. where srctree 17# isn't set and when invoked from selftests build, where srctree 18# is set to ".". building_out_of_srctree is undefined for in srctree 19# builds 20ifeq ($(srctree),) 21update_srctree := 1 22endif 23ifndef building_out_of_srctree 24update_srctree := 1 25endif 26ifeq ($(update_srctree),1) 27srctree := $(patsubst %/,%,$(dir $(CURDIR))) 28srctree := $(patsubst %/,%,$(dir $(srctree))) 29endif 30 31FEATURE_USER = .bpf 32FEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled 33FEATURE_DISPLAY = libbfd 34 35check_feat := 1 36NON_CHECK_FEAT_TARGETS := clean bpftool_clean resolve_btfids_clean 37ifdef MAKECMDGOALS 38ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),) 39 check_feat := 0 40endif 41endif 42 43ifeq ($(check_feat),1) 44ifeq ($(FEATURES_DUMP),) 45include $(srctree)/tools/build/Makefile.feature 46else 47include $(FEATURES_DUMP) 48endif 49endif 50 51ifeq ($(feature-disassembler-four-args), 1) 52CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE 53endif 54ifeq ($(feature-disassembler-init-styled), 1) 55CFLAGS += -DDISASM_INIT_STYLED 56endif 57 58$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y 59 $(QUIET_BISON)$(YACC) -o $@ -d $< 60 61$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l 62 $(QUIET_FLEX)$(LEX) -o $@ $< 63 64$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c 65 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 66 67$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c 68 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 69$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c 70 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 71 72PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm 73 74all: $(PROGS) bpftool 75 76$(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm' 77$(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o 78 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl 79 80$(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o 81 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline 82 83$(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o 84 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ 85 86$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c 87$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c 88$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c 89 90clean: bpftool_clean resolve_btfids_clean 91 $(call QUIET_CLEAN, bpf-progs) 92 $(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \ 93 $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.* 94 $(call QUIET_CLEAN, core-gen) 95 $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf 96 $(Q)$(RM) -r -- $(OUTPUT)feature 97 98install: $(PROGS) bpftool_install 99 $(call QUIET_INSTALL, bpf_jit_disasm) 100 $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin 101 $(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm 102 $(call QUIET_INSTALL, bpf_dbg) 103 $(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg 104 $(call QUIET_INSTALL, bpf_asm) 105 $(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm 106 107bpftool: 108 $(call descend,bpftool) 109 110bpftool_install: 111 $(call descend,bpftool,install) 112 113bpftool_clean: 114 $(call descend,bpftool,clean) 115 116resolve_btfids: 117 $(call descend,resolve_btfids) 118 119resolve_btfids_clean: 120 $(call descend,resolve_btfids,clean) 121 122.PHONY: all install clean bpftool bpftool_install bpftool_clean \ 123 resolve_btfids resolve_btfids_clean 124