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 $(srctree))) 28endif 29 30FEATURE_USER = .bpf 31FEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled 32FEATURE_DISPLAY = libbfd 33 34check_feat := 1 35NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean resolve_btfids_clean 36ifdef MAKECMDGOALS 37ifeq ($(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 53ifeq ($(feature-disassembler-init-styled), 1) 54CFLAGS += -DDISASM_INIT_STYLED 55endif 56 57$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y 58 $(QUIET_BISON)$(YACC) -o $@ -d $< 59 60$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l 61 $(QUIET_FLEX)$(LEX) -o $@ $< 62 63$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c 64 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 65 66$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c 67 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 68$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c 69 $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< 70 71PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm 72 73all: $(PROGS) bpftool runqslower 74 75$(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm' 76$(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o 77 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl 78 79$(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o 80 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline 81 82$(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o 83 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ 84 85$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c 86$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c 87$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c 88 89clean: bpftool_clean runqslower_clean resolve_btfids_clean 90 $(call QUIET_CLEAN, bpf-progs) 91 $(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \ 92 $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.* 93 $(call QUIET_CLEAN, core-gen) 94 $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf 95 $(Q)$(RM) -r -- $(OUTPUT)feature 96 97install: $(PROGS) bpftool_install 98 $(call QUIET_INSTALL, bpf_jit_disasm) 99 $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin 100 $(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm 101 $(call QUIET_INSTALL, bpf_dbg) 102 $(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg 103 $(call QUIET_INSTALL, bpf_asm) 104 $(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm 105 106bpftool: 107 $(call descend,bpftool) 108 109bpftool_install: 110 $(call descend,bpftool,install) 111 112bpftool_clean: 113 $(call descend,bpftool,clean) 114 115runqslower: 116 $(call descend,runqslower) 117 118runqslower_clean: 119 $(call descend,runqslower,clean) 120 121resolve_btfids: 122 $(call descend,resolve_btfids) 123 124resolve_btfids_clean: 125 $(call descend,resolve_btfids,clean) 126 127.PHONY: all install clean bpftool bpftool_install bpftool_clean \ 128 runqslower runqslower_clean \ 129 resolve_btfids resolve_btfids_clean 130