tools/bpf/bpftool/Makefile

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 include ../../scripts/Makefile.include
   3 include ../../scripts/utilities.mak
   4
   5 ifeq ($(srctree),)
   6 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
   7 srctree := $(patsubst %/,%,$(dir $(srctree)))
   8 srctree := $(patsubst %/,%,$(dir $(srctree)))
   9 endif
  10
  11 ifeq ($(V),1)
  12   Q =
  13 else
  14   Q = @
  15 endif
  16
  17 BPF_DIR = $(srctree)/tools/lib/bpf/
  18
  19 ifneq ($(OUTPUT),)
  20   BPF_PATH = $(OUTPUT)
  21 else
  22   BPF_PATH = $(BPF_DIR)
  23 endif
  24
  25 LIBBPF = $(BPF_PATH)libbpf.a
  26
  27 BPFTOOL_VERSION := $(shell make --no-print-directory -sC ../../.. kernelversion)
  28
  29 $(LIBBPF): FORCE
  30         $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) $(OUTPUT)libbpf.a
  31
  32 $(LIBBPF)-clean:
  33         $(call QUIET_CLEAN, libbpf)
  34         $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) clean >/dev/null
  35
  36 prefix ?= /usr/local
  37 bash_compdir ?= /usr/share/bash-completion/completions
  38
  39 CFLAGS += -O2
  40 CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow -Wno-missing-field-initializers
  41 CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
  42         -I$(srctree)/kernel/bpf/ \
  43         -I$(srctree)/tools/include \
  44         -I$(srctree)/tools/include/uapi \
  45         -I$(srctree)/tools/lib/bpf \
  46         -I$(srctree)/tools/perf
  47 CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
  48 ifneq ($(EXTRA_CFLAGS),)
  49 CFLAGS += $(EXTRA_CFLAGS)
  50 endif
  51 ifneq ($(EXTRA_LDFLAGS),)
  52 LDFLAGS += $(EXTRA_LDFLAGS)
  53 endif
  54
  55 LIBS = -lelf $(LIBBPF)
  56
  57 INSTALL ?= install
  58 RM ?= rm -f
  59
  60 FEATURE_USER = .bpftool
  61 FEATURE_TESTS = libbfd disassembler-four-args reallocarray
  62 FEATURE_DISPLAY = libbfd disassembler-four-args
  63
  64 check_feat := 1
  65 NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall
  66 ifdef MAKECMDGOALS
  67 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
  68   check_feat := 0
  69 endif
  70 endif
  71
  72 ifeq ($(check_feat),1)
  73 ifeq ($(FEATURES_DUMP),)
  74 include $(srctree)/tools/build/Makefile.feature
  75 else
  76 include $(FEATURES_DUMP)
  77 endif
  78 endif
  79
  80 ifeq ($(feature-disassembler-four-args), 1)
  81 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
  82 endif
  83
  84 ifeq ($(feature-reallocarray), 0)
  85 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
  86 endif
  87
  88 include $(wildcard $(OUTPUT)*.d)
  89
  90 all: $(OUTPUT)bpftool
  91
  92 BFD_SRCS = jit_disasm.c
  93
  94 SRCS = $(filter-out $(BFD_SRCS),$(wildcard *.c))
  95
  96 ifeq ($(feature-libbfd),1)
  97   LIBS += -lbfd -ldl -lopcodes
  98 else ifeq ($(feature-libbfd-liberty),1)
  99   LIBS += -lbfd -ldl -lopcodes -liberty
 100 else ifeq ($(feature-libbfd-liberty-z),1)
 101   LIBS += -lbfd -ldl -lopcodes -liberty -lz
 102 endif
 103
 104 ifneq ($(filter -lbfd,$(LIBS)),)
 105 CFLAGS += -DHAVE_LIBBFD_SUPPORT
 106 SRCS += $(BFD_SRCS)
 107 endif
 108
 109 OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
 110
 111 $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
 112         $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
 113
 114 $(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
 115         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
 116
 117 $(OUTPUT)%.o: %.c
 118         $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
 119
 120 clean: $(LIBBPF)-clean
 121         $(call QUIET_CLEAN, bpftool)
 122         $(Q)$(RM) $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
 123         $(call QUIET_CLEAN, core-gen)
 124         $(Q)$(RM) $(OUTPUT)FEATURE-DUMP.bpftool
 125
 126 install: $(OUTPUT)bpftool
 127         $(call QUIET_INSTALL, bpftool)
 128         $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin
 129         $(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool
 130         $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir)
 131         $(Q)$(INSTALL) -m 0644 bash-completion/bpftool $(DESTDIR)$(bash_compdir)
 132
 133 uninstall:
 134         $(call QUIET_UNINST, bpftool)
 135         $(Q)$(RM) $(DESTDIR)$(prefix)/sbin/bpftool
 136         $(Q)$(RM) $(DESTDIR)$(bash_compdir)/bpftool
 137
 138 doc:
 139         $(call descend,Documentation)
 140
 141 doc-clean:
 142         $(call descend,Documentation,clean)
 143
 144 doc-install:
 145         $(call descend,Documentation,install)
 146
 147 doc-uninstall:
 148         $(call descend,Documentation,uninstall)
 149
 150 FORCE:
 151
 152 .PHONY: all FORCE clean install uninstall
 153 .PHONY: doc doc-clean doc-install doc-uninstall
 154 .DEFAULT_GOAL := all