tools/bpf/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 include ../scripts/Makefile.include
   3
   4 prefix ?= /usr/local
   5
   6 LEX = flex
   7 YACC = bison
   8 MAKE = make
   9 INSTALL ?= install
  10
  11 CFLAGS += -Wall -O2
  12 CFLAGS += -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
  18 ifeq ($(srctree),)
  19 update_srctree := 1
  20 endif
  21 ifndef building_out_of_srctree
  22 update_srctree := 1
  23 endif
  24 ifeq ($(update_srctree),1)
  25 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  26 srctree := $(patsubst %/,%,$(dir $(srctree)))
  27 endif
  28
  29 ifeq ($(V),1)
  30   Q =
  31 else
  32   Q = @
  33 endif
  34
  35 FEATURE_USER = .bpf
  36 FEATURE_TESTS = libbfd disassembler-four-args
  37 FEATURE_DISPLAY = libbfd disassembler-four-args
  38
  39 check_feat := 1
  40 NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean
  41 ifdef MAKECMDGOALS
  42 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
  43   check_feat := 0
  44 endif
  45 endif
  46
  47 ifeq ($(check_feat),1)
  48 ifeq ($(FEATURES_DUMP),)
  49 include $(srctree)/tools/build/Makefile.feature
  50 else
  51 include $(FEATURES_DUMP)
  52 endif
  53 endif
  54
  55 ifeq ($(feature-disassembler-four-args), 1)
  56 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
  57 endif
  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
  73 PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm
  74
  75 all: $(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
  91 clean: 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
  99 install: $(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
 108 bpftool:
 109         $(call descend,bpftool)
 110
 111 bpftool_install:
 112         $(call descend,bpftool,install)
 113
 114 bpftool_clean:
 115         $(call descend,bpftool,clean)
 116
 117 runqslower:
 118         $(call descend,runqslower)
 119
 120 runqslower_install:
 121         $(call descend,runqslower,install)
 122
 123 runqslower_clean:
 124         $(call descend,runqslower,clean)
 125
 126 resolve_btfids:
 127         $(call descend,resolve_btfids)
 128
 129 resolve_btfids_clean:
 130         $(call descend,resolve_btfids,clean)
 131
 132 .PHONY: all install clean bpftool bpftool_install bpftool_clean \
 133         runqslower runqslower_install runqslower_clean \
 134         resolve_btfids resolve_btfids_clean