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