1 # SPDX-License-Identifier: GPL-2.0-only
2 include ../../scripts/Makefile.include
3 include ../../scripts/Makefile.arch
4
5 srctree := $(abspath $(CURDIR)/../../../)
6
7 ifeq ($(V),1)
8 Q =
9 msg =
10 else
11 Q = @
12 ifeq ($(silent),1)
13 msg =
14 else
15 msg = @printf ' %-8s %s%s\n' "$(1)" "$(no
16 endif
17 MAKEFLAGS=--no-print-directory
18 endif
19
20 # Overrides for the prepare step libraries.
21 HOST_OVERRIDES := AR="$(HOSTAR)" CC="$(HOSTCC)
22 CROSS_COMPILE="" EXTRA_CFLAG
23
24 RM ?= rm
25 HOSTCC ?= gcc
26 HOSTLD ?= ld
27 HOSTAR ?= ar
28 CROSS_COMPILE =
29
30 OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
31
32 LIBBPF_SRC := $(srctree)/tools/lib/bpf/
33 SUBCMD_SRC := $(srctree)/tools/lib/subcmd/
34
35 BPFOBJ := $(OUTPUT)/libbpf/libbpf.a
36 LIBBPF_OUT := $(abspath $(dir $(BPFOBJ)))/
37 SUBCMDOBJ := $(OUTPUT)/libsubcmd/libsubcmd.a
38 SUBCMD_OUT := $(abspath $(dir $(SUBCMDOBJ)))/
39
40 LIBBPF_DESTDIR := $(LIBBPF_OUT)
41 LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include
42
43 SUBCMD_DESTDIR := $(SUBCMD_OUT)
44 SUBCMD_INCLUDE := $(SUBCMD_DESTDIR)include
45
46 BINARY := $(OUTPUT)/resolve_btfids
47 BINARY_IN := $(BINARY)-in.o
48
49 all: $(BINARY)
50
51 prepare: $(BPFOBJ) $(SUBCMDOBJ)
52
53 $(OUTPUT) $(OUTPUT)/libsubcmd $(LIBBPF_OUT):
54 $(call msg,MKDIR,,$@)
55 $(Q)mkdir -p $(@)
56
57 $(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubc
58 $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(
59 DESTDIR=$(SUBCMD_DESTDIR)
60 $(abspath $@) install_head
61
62 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(L
63 $(Q)$(MAKE) $(submake_extras) -C $(LIB
64 DESTDIR=$(LIBBPF_DESTDIR)
65 $(abspath $@) install_head
66
67 LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libe
68 LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libe
69
70 HOSTCFLAGS_resolve_btfids += -g \
71 -I$(srctree)/tools/include \
72 -I$(srctree)/tools/include/uapi \
73 -I$(LIBBPF_INCLUDE) \
74 -I$(SUBCMD_INCLUDE) \
75 $(LIBELF_FLAGS)
76
77 LIBS = $(LIBELF_LIBS) -lz
78
79 export srctree OUTPUT HOSTCFLAGS_resolve_btfid
80 include $(srctree)/tools/build/Makefile.includ
81
82 $(BINARY_IN): fixdep FORCE prepare | $(OUTPUT)
83 $(Q)$(MAKE) $(build)=resolve_btfids
84
85 $(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN)
86 $(call msg,LINK,$@)
87 $(Q)$(HOSTCC) $(BINARY_IN) $(KBUILD_HO
88
89 clean_objects := $(wildcard $(OUTPUT)/*.o
90 $(OUTPUT)/.*.o.cmd
91 $(OUTPUT)/.*.o.d
92 $(LIBBPF_OUT)
93 $(LIBBPF_DESTDIR)
94 $(SUBCMD_OUT)
95 $(SUBCMD_DESTDIR)
96 $(OUTPUT)/resolve_
97
98 ifneq ($(clean_objects),)
99 clean: fixdep-clean
100 $(call msg,CLEAN,$(BINARY))
101 $(Q)$(RM) -rf $(clean_objects)
102 else
103 clean:
104 endif
105
106 tags:
107 $(call msg,GEN,,tags)
108 $(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_
109
110 FORCE:
111
112 .PHONY: all FORCE clean tags prepare
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