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