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 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 19ifeq ($(srctree),) 20update_srctree := 1 21endif 22ifndef building_out_of_srctree 23update_srctree := 1 24endif 25ifeq ($(update_srctree),1) 26srctree := $(patsubst %/,%,$(dir $(CURDIR))) 27srctree := $(patsubst %/,%,$(dir $(srctree))) 28endif 29 30ifeq ($(V),1) 31 Q = 32else 33 Q = @ 34endif 35 36FEATURE_USER = .bpf 37FEATURE_TESTS = libbfd disassembler-four-args 38FEATURE_DISPLAY = libbfd disassembler-four-args 39 40check_feat := 1 41NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean resolve_btfids_clean 42ifdef MAKECMDGOALS 43ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),) 44 check_feat := 0 45endif 46endif 47 48ifeq ($(check_feat),1) 49ifeq ($(FEATURES_DUMP),) 50include $(srctree)/tools/build/Makefile.feature 51else 52include $(FEATURES_DUMP) 53endif 54endif 55 56ifeq ($(feature-disassembler-four-args), 1) 57CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE 58endif 59 60$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y 61 $(QUIET_BISON)$(YACC) -o $@ -d $< 62 63$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l 64 $(QUIET_FLEX)$(LEX) -o $@ $< 65 66$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c 67 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 68 69$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c 70 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 71$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c 72 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 73 74PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm 75 76all: $(PROGS) bpftool runqslower 77 78$(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm' 79$(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o 80 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl 81 82$(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o 83 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline 84 85$(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o 86 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ 87 88$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c 89$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c 90$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c 91 92clean: bpftool_clean runqslower_clean resolve_btfids_clean 93 $(call QUIET_CLEAN, bpf-progs) 94 $(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \ 95 $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.* 96 $(call QUIET_CLEAN, core-gen) 97 $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf 98 $(Q)$(RM) -r -- $(OUTPUT)feature 99 100install: $(PROGS) bpftool_install 101 $(call QUIET_INSTALL, bpf_jit_disasm) 102 $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin 103 $(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm 104 $(call QUIET_INSTALL, bpf_dbg) 105 $(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg 106 $(call QUIET_INSTALL, bpf_asm) 107 $(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm 108 109bpftool: 110 $(call descend,bpftool) 111 112bpftool_install: 113 $(call descend,bpftool,install) 114 115bpftool_clean: 116 $(call descend,bpftool,clean) 117 118runqslower: 119 $(call descend,runqslower) 120 121runqslower_clean: 122 $(call descend,runqslower,clean) 123 124resolve_btfids: 125 $(call descend,resolve_btfids) 126 127resolve_btfids_clean: 128 $(call descend,resolve_btfids,clean) 129 130.PHONY: all install clean bpftool bpftool_install bpftool_clean \ 131 runqslower runqslower_clean \ 132 resolve_btfids resolve_btfids_clean 133