• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# SPDX-License-Identifier: GPL-2.0-only
2include ../../scripts/Makefile.include
3include ../../scripts/Makefile.arch
4
5srctree := $(abspath $(CURDIR)/../../../)
6
7ifeq ($(V),1)
8  Q =
9  msg =
10else
11  Q = @
12  ifeq ($(silent),1)
13    msg =
14  else
15    msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
16  endif
17  MAKEFLAGS=--no-print-directory
18endif
19
20# always use the host compiler
21AR       = $(HOSTAR)
22CC       = $(HOSTCC)
23LD       = $(HOSTLD)
24ARCH     = $(HOSTARCH)
25RM      ?= rm
26
27OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
28
29LIBBPF_SRC := $(srctree)/tools/lib/bpf/
30SUBCMD_SRC := $(srctree)/tools/lib/subcmd/
31
32BPFOBJ     := $(OUTPUT)/libbpf/libbpf.a
33SUBCMDOBJ  := $(OUTPUT)/libsubcmd/libsubcmd.a
34
35BINARY     := $(OUTPUT)/resolve_btfids
36BINARY_IN  := $(BINARY)-in.o
37
38all: $(BINARY)
39
40$(OUTPUT) $(OUTPUT)/libbpf $(OUTPUT)/libsubcmd:
41	$(call msg,MKDIR,,$@)
42	$(Q)mkdir -p $(@)
43
44$(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd
45	$(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
46
47$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)/libbpf
48	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)  OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
49
50CFLAGS := -g \
51          -I$(srctree)/tools/include \
52          -I$(srctree)/tools/include/uapi \
53          -I$(LIBBPF_SRC) \
54          -I$(SUBCMD_SRC)
55
56LIBS = -lelf -lz
57
58export srctree OUTPUT CFLAGS Q
59include $(srctree)/tools/build/Makefile.include
60
61$(BINARY_IN): fixdep FORCE | $(OUTPUT)
62	$(Q)$(MAKE) $(build)=resolve_btfids
63
64$(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN)
65	$(call msg,LINK,$@)
66	$(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS)
67
68clean_objects := $(wildcard $(OUTPUT)/*.o                \
69                            $(OUTPUT)/.*.o.cmd           \
70                            $(OUTPUT)/.*.o.d             \
71                            $(OUTPUT)/libbpf             \
72                            $(OUTPUT)/libsubcmd          \
73                            $(OUTPUT)/resolve_btfids)
74
75ifneq ($(clean_objects),)
76clean: fixdep-clean
77	$(call msg,CLEAN,$(BINARY))
78	$(Q)$(RM) -rf $(clean_objects)
79else
80clean:
81endif
82
83tags:
84	$(call msg,GEN,,tags)
85	$(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_SRC)
86
87FORCE:
88
89.PHONY: all FORCE clean tags
90