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