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$(srctree)/include/uapi -I$(srctree)/include 13 14# This will work when bpf is built in tools env. where srctree 15# isn't set and when invoked from selftests build, where srctree 16# is set to ".". building_out_of_srctree is undefined for in srctree 17# builds 18ifeq ($(srctree),) 19update_srctree := 1 20endif 21ifndef building_out_of_srctree 22update_srctree := 1 23endif 24ifeq ($(update_srctree),1) 25srctree := $(patsubst %/,%,$(dir $(CURDIR))) 26srctree := $(patsubst %/,%,$(dir $(srctree))) 27endif 28 29ifeq ($(V),1) 30 Q = 31else 32 Q = @ 33endif 34 35FEATURE_USER = .bpf 36FEATURE_TESTS = libbfd disassembler-four-args 37FEATURE_DISPLAY = libbfd disassembler-four-args 38 39check_feat := 1 40NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean 41ifdef MAKECMDGOALS 42ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),) 43 check_feat := 0 44endif 45endif 46 47ifeq ($(check_feat),1) 48ifeq ($(FEATURES_DUMP),) 49include $(srctree)/tools/build/Makefile.feature 50else 51include $(FEATURES_DUMP) 52endif 53endif 54 55ifeq ($(feature-disassembler-four-args), 1) 56CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE 57endif 58 59$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y 60 $(QUIET_BISON)$(YACC) -o $@ -d $< 61 62$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l 63 $(QUIET_FLEX)$(LEX) -o $@ $< 64 65$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c 66 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 67 68$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c 69 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 70$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c 71 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 72 73PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm 74 75all: $(PROGS) bpftool runqslower 76 77$(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm' 78$(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o 79 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl 80 81$(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o 82 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline 83 84$(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o 85 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ 86 87$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c 88$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c 89$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c 90 91clean: bpftool_clean runqslower_clean 92 $(call QUIET_CLEAN, bpf-progs) 93 $(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \ 94 $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.* 95 $(call QUIET_CLEAN, core-gen) 96 $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf 97 $(Q)$(RM) -r -- $(OUTPUT)feature 98 99install: $(PROGS) bpftool_install runqslower_install 100 $(call QUIET_INSTALL, bpf_jit_disasm) 101 $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin 102 $(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm 103 $(call QUIET_INSTALL, bpf_dbg) 104 $(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg 105 $(call QUIET_INSTALL, bpf_asm) 106 $(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm 107 108bpftool: 109 $(call descend,bpftool) 110 111bpftool_install: 112 $(call descend,bpftool,install) 113 114bpftool_clean: 115 $(call descend,bpftool,clean) 116 117runqslower: 118 $(call descend,runqslower) 119 120runqslower_install: 121 $(call descend,runqslower,install) 122 123runqslower_clean: 124 $(call descend,runqslower,clean) 125 126.PHONY: all install clean bpftool bpftool_install bpftool_clean \ 127 runqslower runqslower_install runqslower_clean 128