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