tools/bpf/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 include ../scripts/Makefile.include
   3
   4 prefix ?= /usr/local
   5
   6 CC = gcc
   7 LEX = flex
   8 YACC = bison
   9 MAKE = make
  10 INSTALL ?= install
  11
  12 CFLAGS += -Wall -O2
  13 CFLAGS += -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
  19 ifndef building_out_of_srctree
  20 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  21 srctree := $(patsubst %/,%,$(dir $(srctree)))
  22 endif
  23
  24 ifeq ($(V),1)
  25   Q =
  26 else
  27   Q = @
  28 endif
  29
  30 FEATURE_USER = .bpf
  31 FEATURE_TESTS = libbfd disassembler-four-args
  32 FEATURE_DISPLAY = libbfd disassembler-four-args
  33
  34 check_feat := 1
  35 NON_CHECK_FEAT_TARGETS := clean bpftool_clean
  36 ifdef MAKECMDGOALS
  37 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
  38   check_feat := 0
  39 endif
  40 endif
  41
  42 ifeq ($(check_feat),1)
  43 ifeq ($(FEATURES_DUMP),)
  44 include $(srctree)/tools/build/Makefile.feature
  45 else
  46 include $(FEATURES_DUMP)
  47 endif
  48 endif
  49
  50 ifeq ($(feature-disassembler-four-args), 1)
  51 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
  52 endif
  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
  68 PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm
  69
  70 all: $(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
  86 clean: 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
  94 install: $(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
 103 bpftool:
 104         $(call descend,bpftool)
 105
 106 bpftool_install:
 107         $(call descend,bpftool,install)
 108
 109 bpftool_clean:
 110         $(call descend,bpftool,clean)
 111
 112 .PHONY: all install clean bpftool bpftool_install bpftool_clean