1 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2- 1 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
2 # Most of this file is copied from tools/lib/t 2 # Most of this file is copied from tools/lib/traceevent/Makefile
3 3
4 RM ?= rm 4 RM ?= rm
5 srctree := $(realpath $(srctree)) !! 5 srctree = $(abs_srctree)
6 6
7 VERSION_SCRIPT := libbpf.map 7 VERSION_SCRIPT := libbpf.map
8 LIBBPF_VERSION := $(shell \ 8 LIBBPF_VERSION := $(shell \
9 grep -oE '^LIBBPF_([0-9.]+)' $(VERSION 9 grep -oE '^LIBBPF_([0-9.]+)' $(VERSION_SCRIPT) | \
10 sort -rV | head -n1 | cut -d'_' -f2) 10 sort -rV | head -n1 | cut -d'_' -f2)
11 LIBBPF_MAJOR_VERSION := $(word 1,$(subst ., ,$ !! 11 LIBBPF_MAJOR_VERSION := $(firstword $(subst ., ,$(LIBBPF_VERSION)))
12 LIBBPF_MINOR_VERSION := $(word 2,$(subst ., ,$ <<
13 12
14 MAKEFLAGS += --no-print-directory 13 MAKEFLAGS += --no-print-directory
15 14
16 # This will work when bpf is built in tools en 15 # This will work when bpf is built in tools env. where srctree
17 # isn't set and when invoked from selftests bu 16 # isn't set and when invoked from selftests build, where srctree
18 # is a ".". building_out_of_srctree is undefin 17 # is a ".". building_out_of_srctree is undefined for in srctree
19 # builds 18 # builds
20 ifndef building_out_of_srctree 19 ifndef building_out_of_srctree
21 srctree := $(patsubst %/,%,$(dir $(CURDIR))) 20 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
22 srctree := $(patsubst %/,%,$(dir $(srctree))) 21 srctree := $(patsubst %/,%,$(dir $(srctree)))
23 srctree := $(patsubst %/,%,$(dir $(srctree))) 22 srctree := $(patsubst %/,%,$(dir $(srctree)))
24 #$(info Determined 'srctree' to be $(srctree)) 23 #$(info Determined 'srctree' to be $(srctree))
25 endif 24 endif
26 25
27 INSTALL = install 26 INSTALL = install
28 27
29 # Use DESTDIR for installing into a different 28 # Use DESTDIR for installing into a different root directory.
30 # This is useful for building a package. The p 29 # This is useful for building a package. The program will be
31 # installed in this directory as if it was the 30 # installed in this directory as if it was the root directory.
32 # Then the build tool can move it later. 31 # Then the build tool can move it later.
33 DESTDIR ?= 32 DESTDIR ?=
34 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' 33 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
35 34
36 include $(srctree)/tools/scripts/Makefile.arch 35 include $(srctree)/tools/scripts/Makefile.arch
37 36
38 ifeq ($(LP64), 1) 37 ifeq ($(LP64), 1)
39 libdir_relative = lib64 38 libdir_relative = lib64
40 else 39 else
41 libdir_relative = lib 40 libdir_relative = lib
42 endif 41 endif
43 42
44 prefix ?= /usr/local 43 prefix ?= /usr/local
45 libdir = $(prefix)/$(libdir_relative) 44 libdir = $(prefix)/$(libdir_relative)
46 man_dir = $(prefix)/share/man 45 man_dir = $(prefix)/share/man
47 man_dir_SQ = '$(subst ','\'',$(man_dir))' 46 man_dir_SQ = '$(subst ','\'',$(man_dir))'
48 47
49 export man_dir man_dir_SQ INSTALL 48 export man_dir man_dir_SQ INSTALL
50 export DESTDIR DESTDIR_SQ 49 export DESTDIR DESTDIR_SQ
51 50
52 include $(srctree)/tools/scripts/Makefile.incl 51 include $(srctree)/tools/scripts/Makefile.include
53 52
54 # copy a bit from Linux kbuild 53 # copy a bit from Linux kbuild
55 54
56 ifeq ("$(origin V)", "command line") 55 ifeq ("$(origin V)", "command line")
57 VERBOSE = $(V) 56 VERBOSE = $(V)
58 endif 57 endif
59 ifndef VERBOSE 58 ifndef VERBOSE
60 VERBOSE = 0 59 VERBOSE = 0
61 endif 60 endif
62 61
63 INCLUDES = -I$(or $(OUTPUT),.) \ !! 62 FEATURE_USER = .libbpf
64 -I$(srctree)/tools/include -I$(srct !! 63 FEATURE_TESTS = libelf zlib bpf
>> 64 FEATURE_DISPLAY = libelf zlib bpf
>> 65
>> 66 INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/tools/include/uapi
>> 67 FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
>> 68
>> 69 check_feat := 1
>> 70 NON_CHECK_FEAT_TARGETS := clean TAGS tags cscope help
>> 71 ifdef MAKECMDGOALS
>> 72 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
>> 73 check_feat := 0
>> 74 endif
>> 75 endif
>> 76
>> 77 ifeq ($(check_feat),1)
>> 78 ifeq ($(FEATURES_DUMP),)
>> 79 include $(srctree)/tools/build/Makefile.feature
>> 80 else
>> 81 include $(FEATURES_DUMP)
>> 82 endif
>> 83 endif
65 84
66 export prefix libdir src obj 85 export prefix libdir src obj
67 86
68 # Shell quotes 87 # Shell quotes
69 libdir_SQ = $(subst ','\'',$(libdir)) 88 libdir_SQ = $(subst ','\'',$(libdir))
70 libdir_relative_SQ = $(subst ','\'',$(libdir_r 89 libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
71 90
72 OBJ = $@ 91 OBJ = $@
73 N = 92 N =
74 93
75 LIB_TARGET = libbpf.a libbpf.so.$(LIBBPF_ 94 LIB_TARGET = libbpf.a libbpf.so.$(LIBBPF_VERSION)
76 LIB_FILE = libbpf.a libbpf.so* 95 LIB_FILE = libbpf.a libbpf.so*
77 PC_FILE = libbpf.pc 96 PC_FILE = libbpf.pc
78 97
79 # Set compile option CFLAGS 98 # Set compile option CFLAGS
80 ifdef EXTRA_CFLAGS 99 ifdef EXTRA_CFLAGS
81 CFLAGS := $(EXTRA_CFLAGS) 100 CFLAGS := $(EXTRA_CFLAGS)
82 else 101 else
83 CFLAGS := -g -O2 102 CFLAGS := -g -O2
84 endif 103 endif
85 104
86 # Append required CFLAGS 105 # Append required CFLAGS
87 override CFLAGS += -std=gnu89 <<
88 override CFLAGS += $(EXTRA_WARNINGS) -Wno-swit 106 override CFLAGS += $(EXTRA_WARNINGS) -Wno-switch-enum
89 override CFLAGS += -Werror -Wall 107 override CFLAGS += -Werror -Wall
90 override CFLAGS += $(INCLUDES) 108 override CFLAGS += $(INCLUDES)
91 override CFLAGS += -fvisibility=hidden 109 override CFLAGS += -fvisibility=hidden
92 override CFLAGS += -D_LARGEFILE64_SOURCE -D_FI 110 override CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
93 override CFLAGS += $(CLANG_CROSS_FLAGS) <<
94 111
95 # flags specific for shared library 112 # flags specific for shared library
96 SHLIB_FLAGS := -DSHARED -fPIC 113 SHLIB_FLAGS := -DSHARED -fPIC
97 114
98 ifeq ($(VERBOSE),1) 115 ifeq ($(VERBOSE),1)
99 Q = 116 Q =
100 else 117 else
101 Q = @ 118 Q = @
102 endif 119 endif
103 120
104 # Disable command line variables (CFLAGS) over 121 # Disable command line variables (CFLAGS) override from top
105 # level Makefile (perf), otherwise build Makef 122 # level Makefile (perf), otherwise build Makefile will get
106 # the same command line setup. 123 # the same command line setup.
107 MAKEOVERRIDES= 124 MAKEOVERRIDES=
108 125
109 all: 126 all:
110 127
111 OUTPUT ?= ./ <<
112 OUTPUT := $(abspath $(OUTPUT))/ <<
113 export srctree OUTPUT CC LD CFLAGS V 128 export srctree OUTPUT CC LD CFLAGS V
114 include $(srctree)/tools/build/Makefile.includ 129 include $(srctree)/tools/build/Makefile.include
115 130
116 SHARED_OBJDIR := $(OUTPUT)sharedobjs/ 131 SHARED_OBJDIR := $(OUTPUT)sharedobjs/
117 STATIC_OBJDIR := $(OUTPUT)staticobjs/ 132 STATIC_OBJDIR := $(OUTPUT)staticobjs/
118 BPF_IN_SHARED := $(SHARED_OBJDIR)libbpf-in.o 133 BPF_IN_SHARED := $(SHARED_OBJDIR)libbpf-in.o
119 BPF_IN_STATIC := $(STATIC_OBJDIR)libbpf-in.o 134 BPF_IN_STATIC := $(STATIC_OBJDIR)libbpf-in.o
120 BPF_HELPER_DEFS := $(OUTPUT)bpf_helper_defs.h 135 BPF_HELPER_DEFS := $(OUTPUT)bpf_helper_defs.h
121 BPF_GENERATED := $(BPF_HELPER_DEFS) <<
122 136
123 LIB_TARGET := $(addprefix $(OUTPUT),$(LIB 137 LIB_TARGET := $(addprefix $(OUTPUT),$(LIB_TARGET))
124 LIB_FILE := $(addprefix $(OUTPUT),$(LIB 138 LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
125 PC_FILE := $(addprefix $(OUTPUT),$(PC_ 139 PC_FILE := $(addprefix $(OUTPUT),$(PC_FILE))
126 140
127 TAGS_PROG := $(if $(shell which etags 2>/dev/n 141 TAGS_PROG := $(if $(shell which etags 2>/dev/null),etags,ctags)
128 142
129 GLOBAL_SYM_COUNT = $(shell readelf -s --wide $ 143 GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(BPF_IN_SHARED) | \
130 cut -d "@" -f1 | se 144 cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \
131 sed 's/\[.*\]//' | 145 sed 's/\[.*\]//' | \
132 awk '/GLOBAL/ && /D !! 146 awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \
133 sort -u | wc -l) 147 sort -u | wc -l)
134 VERSIONED_SYM_COUNT = $(shell readelf --dyn-sy 148 VERSIONED_SYM_COUNT = $(shell readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \
135 sed 's/\[.*\]//' 149 sed 's/\[.*\]//' | \
136 awk '/GLOBAL/ && 150 awk '/GLOBAL/ && /DEFAULT/ && !/UND|ABS/ {print $$NF}' | \
137 grep -Eo '[^ ]+@ 151 grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | sort -u | wc -l)
138 152
139 CMD_TARGETS = $(LIB_TARGET) $(PC_FILE) 153 CMD_TARGETS = $(LIB_TARGET) $(PC_FILE)
140 154
141 all: fixdep 155 all: fixdep
142 $(Q)$(MAKE) all_cmd 156 $(Q)$(MAKE) all_cmd
143 157
144 all_cmd: $(CMD_TARGETS) check 158 all_cmd: $(CMD_TARGETS) check
145 159
146 $(SHARED_OBJDIR) $(STATIC_OBJDIR): !! 160 $(BPF_IN_SHARED): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
147 $(Q)mkdir -p $@ <<
148 <<
149 $(BPF_IN_SHARED): force $(BPF_GENERATED) | $(S <<
150 @(test -f ../../include/uapi/linux/bpf 161 @(test -f ../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \
151 (diff -B ../../include/uapi/linux/bpf. 162 (diff -B ../../include/uapi/linux/bpf.h ../../../include/uapi/linux/bpf.h >/dev/null) || \
152 echo "Warning: Kernel ABI header at 't 163 echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'" >&2 )) || true
153 @(test -f ../../include/uapi/linux/bpf 164 @(test -f ../../include/uapi/linux/bpf_common.h -a -f ../../../include/uapi/linux/bpf_common.h && ( \
154 (diff -B ../../include/uapi/linux/bpf_ 165 (diff -B ../../include/uapi/linux/bpf_common.h ../../../include/uapi/linux/bpf_common.h >/dev/null) || \
155 echo "Warning: Kernel ABI header at 't 166 echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf_common.h' differs from latest version at 'include/uapi/linux/bpf_common.h'" >&2 )) || true
>> 167 @(test -f ../../include/uapi/linux/netlink.h -a -f ../../../include/uapi/linux/netlink.h && ( \
>> 168 (diff -B ../../include/uapi/linux/netlink.h ../../../include/uapi/linux/netlink.h >/dev/null) || \
>> 169 echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/netlink.h' differs from latest version at 'include/uapi/linux/netlink.h'" >&2 )) || true
>> 170 @(test -f ../../include/uapi/linux/if_link.h -a -f ../../../include/uapi/linux/if_link.h && ( \
>> 171 (diff -B ../../include/uapi/linux/if_link.h ../../../include/uapi/linux/if_link.h >/dev/null) || \
>> 172 echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'" >&2 )) || true
156 @(test -f ../../include/uapi/linux/if_ 173 @(test -f ../../include/uapi/linux/if_xdp.h -a -f ../../../include/uapi/linux/if_xdp.h && ( \
157 (diff -B ../../include/uapi/linux/if_x 174 (diff -B ../../include/uapi/linux/if_xdp.h ../../../include/uapi/linux/if_xdp.h >/dev/null) || \
158 echo "Warning: Kernel ABI header at 't 175 echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h'" >&2 )) || true
159 $(SILENT_MAKE) -C $(srctree)/tools/bui <<
160 $(Q)$(MAKE) $(build)=libbpf OUTPUT=$(S 176 $(Q)$(MAKE) $(build)=libbpf OUTPUT=$(SHARED_OBJDIR) CFLAGS="$(CFLAGS) $(SHLIB_FLAGS)"
161 177
162 $(BPF_IN_STATIC): force $(BPF_GENERATED) | $(S !! 178 $(BPF_IN_STATIC): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
163 $(SILENT_MAKE) -C $(srctree)/tools/bui <<
164 $(Q)$(MAKE) $(build)=libbpf OUTPUT=$(S 179 $(Q)$(MAKE) $(build)=libbpf OUTPUT=$(STATIC_OBJDIR)
165 180
166 $(BPF_HELPER_DEFS): $(srctree)/tools/include/u 181 $(BPF_HELPER_DEFS): $(srctree)/tools/include/uapi/linux/bpf.h
167 $(QUIET_GEN)$(srctree)/scripts/bpf_doc !! 182 $(QUIET_GEN)$(srctree)/scripts/bpf_helpers_doc.py --header \
168 --file $(srctree)/tools/includ 183 --file $(srctree)/tools/include/uapi/linux/bpf.h > $(BPF_HELPER_DEFS)
169 184
170 $(OUTPUT)libbpf.so: $(OUTPUT)libbpf.so.$(LIBBP 185 $(OUTPUT)libbpf.so: $(OUTPUT)libbpf.so.$(LIBBPF_VERSION)
171 186
172 $(OUTPUT)libbpf.so.$(LIBBPF_VERSION): $(BPF_IN 187 $(OUTPUT)libbpf.so.$(LIBBPF_VERSION): $(BPF_IN_SHARED) $(VERSION_SCRIPT)
173 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS !! 188 $(QUIET_LINK)$(CC) $(LDFLAGS) \
174 --shared -Wl,-soname,libbpf.so 189 --shared -Wl,-soname,libbpf.so.$(LIBBPF_MAJOR_VERSION) \
175 -Wl,--version-script=$(VERSION 190 -Wl,--version-script=$(VERSION_SCRIPT) $< -lelf -lz -o $@
176 @ln -sf $(@F) $(OUTPUT)libbpf.so 191 @ln -sf $(@F) $(OUTPUT)libbpf.so
177 @ln -sf $(@F) $(OUTPUT)libbpf.so.$(LIB 192 @ln -sf $(@F) $(OUTPUT)libbpf.so.$(LIBBPF_MAJOR_VERSION)
178 193
179 $(OUTPUT)libbpf.a: $(BPF_IN_STATIC) 194 $(OUTPUT)libbpf.a: $(BPF_IN_STATIC)
180 $(QUIET_LINK)$(RM) -f $@; $(AR) rcs $@ 195 $(QUIET_LINK)$(RM) -f $@; $(AR) rcs $@ $^
181 196
182 $(OUTPUT)libbpf.pc: 197 $(OUTPUT)libbpf.pc:
183 $(QUIET_GEN)sed -e "s|@PREFIX@|$(prefi 198 $(QUIET_GEN)sed -e "s|@PREFIX@|$(prefix)|" \
184 -e "s|@LIBDIR@|$(libdir_SQ)|" 199 -e "s|@LIBDIR@|$(libdir_SQ)|" \
185 -e "s|@VERSION@|$(LIBBPF_VERSI 200 -e "s|@VERSION@|$(LIBBPF_VERSION)|" \
186 < libbpf.pc.template > $@ 201 < libbpf.pc.template > $@
187 202
188 check: check_abi check_version !! 203 check: check_abi
189 204
190 check_abi: $(OUTPUT)libbpf.so $(VERSION_SCRIPT 205 check_abi: $(OUTPUT)libbpf.so $(VERSION_SCRIPT)
191 @if [ "$(GLOBAL_SYM_COUNT)" != "$(VERS 206 @if [ "$(GLOBAL_SYM_COUNT)" != "$(VERSIONED_SYM_COUNT)" ]; then \
192 echo "Warning: Num of global s 207 echo "Warning: Num of global symbols in $(BPF_IN_SHARED)" \
193 "($(GLOBAL_SYM_COUNT)) do 208 "($(GLOBAL_SYM_COUNT)) does NOT match with num of" \
194 "versioned symbols in $^ 209 "versioned symbols in $^ ($(VERSIONED_SYM_COUNT))." \
195 "Please make sure all LIB 210 "Please make sure all LIBBPF_API symbols are" \
196 "versioned in $(VERSION_S 211 "versioned in $(VERSION_SCRIPT)." >&2; \
197 readelf -s --wide $(BPF_IN_SHA 212 readelf -s --wide $(BPF_IN_SHARED) | \
198 cut -d "@" -f1 | sed 's/_v 213 cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \
199 sed 's/\[.*\]//' | 214 sed 's/\[.*\]//' | \
200 awk '/GLOBAL/ && /DEFAULT/ 215 awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'| \
201 sort -u > $(OUTPUT)libbpf_ 216 sort -u > $(OUTPUT)libbpf_global_syms.tmp; \
202 readelf --dyn-syms --wide $(OU 217 readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \
203 sed 's/\[.*\]//' | 218 sed 's/\[.*\]//' | \
204 awk '/GLOBAL/ && /DEFAULT/ 219 awk '/GLOBAL/ && /DEFAULT/ && !/UND|ABS/ {print $$NF}'| \
205 grep -Eo '[^ ]+@LIBBPF_' | 220 grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | \
206 sort -u > $(OUTPUT)libbpf_ 221 sort -u > $(OUTPUT)libbpf_versioned_syms.tmp; \
207 diff -u $(OUTPUT)libbpf_global 222 diff -u $(OUTPUT)libbpf_global_syms.tmp \
208 $(OUTPUT)libbpf_versioned 223 $(OUTPUT)libbpf_versioned_syms.tmp; \
209 rm $(OUTPUT)libbpf_global_syms 224 rm $(OUTPUT)libbpf_global_syms.tmp \
210 $(OUTPUT)libbpf_versioned_s 225 $(OUTPUT)libbpf_versioned_syms.tmp; \
211 exit 1; 226 exit 1; \
212 fi 227 fi
213 228
214 HDR_MAJ_VERSION := $(shell grep -oE '^$(pound) <<
215 HDR_MIN_VERSION := $(shell grep -oE '^$(pound) <<
216 <<
217 check_version: $(VERSION_SCRIPT) libbpf_versio <<
218 @if [ "$(HDR_MAJ_VERSION)" != "$(LIBBP <<
219 echo "Error: libbpf major vers <<
220 "'$(HDR_MAJ_VERSION)' != <<
221 exit 1; <<
222 fi <<
223 @if [ "$(HDR_MIN_VERSION)" != "$(LIBBP <<
224 echo "Error: libbpf minor vers <<
225 "'$(HDR_MIN_VERSION)' != <<
226 exit 1; <<
227 fi <<
228 <<
229 define do_install_mkdir 229 define do_install_mkdir
230 if [ ! -d '$(DESTDIR_SQ)$1' ]; then 230 if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
231 $(INSTALL) -d -m 755 '$(DESTDI 231 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
232 fi 232 fi
233 endef 233 endef
234 234
235 define do_install 235 define do_install
236 if [ ! -d '$(DESTDIR_SQ)$2' ]; then 236 if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
237 $(INSTALL) -d -m 755 '$(DESTDI 237 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
238 fi; 238 fi; \
239 $(INSTALL) $(if $3,-m $3,) $1 '$(DESTD 239 $(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
240 endef 240 endef
241 241
242 install_lib: all_cmd 242 install_lib: all_cmd
243 $(call QUIET_INSTALL, $(LIB_TARGET)) \ 243 $(call QUIET_INSTALL, $(LIB_TARGET)) \
244 $(call do_install_mkdir,$(libd 244 $(call do_install_mkdir,$(libdir_SQ)); \
245 cp -fpR $(LIB_FILE) $(DESTDIR) 245 cp -fpR $(LIB_FILE) $(DESTDIR)$(libdir_SQ)
246 246
247 SRC_HDRS := bpf.h libbpf.h btf.h libbpf_common !! 247 install_headers: $(BPF_HELPER_DEFS)
248 bpf_helpers.h bpf_tracing.h bpf_en !! 248 $(call QUIET_INSTALL, headers) \
249 skel_internal.h libbpf_version.h u !! 249 $(call do_install,bpf.h,$(prefix)/include/bpf,644); \
250 GEN_HDRS := $(BPF_GENERATED) !! 250 $(call do_install,libbpf.h,$(prefix)/include/bpf,644); \
251 !! 251 $(call do_install,btf.h,$(prefix)/include/bpf,644); \
252 INSTALL_PFX := $(DESTDIR)$(prefix)/include/bpf !! 252 $(call do_install,libbpf_util.h,$(prefix)/include/bpf,644); \
253 INSTALL_SRC_HDRS := $(addprefix $(INSTALL_PFX) !! 253 $(call do_install,libbpf_common.h,$(prefix)/include/bpf,644); \
254 INSTALL_GEN_HDRS := $(addprefix $(INSTALL_PFX) !! 254 $(call do_install,xsk.h,$(prefix)/include/bpf,644); \
255 !! 255 $(call do_install,bpf_helpers.h,$(prefix)/include/bpf,644); \
256 $(INSTALL_SRC_HDRS): $(INSTALL_PFX)/%.h: %.h !! 256 $(call do_install,$(BPF_HELPER_DEFS),$(prefix)/include/bpf,644); \
257 $(call QUIET_INSTALL, $@) \ !! 257 $(call do_install,bpf_tracing.h,$(prefix)/include/bpf,644); \
258 $(call do_install,$<,$(prefix) !! 258 $(call do_install,bpf_endian.h,$(prefix)/include/bpf,644); \
259 !! 259 $(call do_install,bpf_core_read.h,$(prefix)/include/bpf,644);
260 $(INSTALL_GEN_HDRS): $(INSTALL_PFX)/%.h: $(OUT <<
261 $(call QUIET_INSTALL, $@) \ <<
262 $(call do_install,$<,$(prefix) <<
263 <<
264 install_headers: $(BPF_GENERATED) $(INSTALL_SR <<
265 $(call QUIET_INSTALL, libbpf_headers) <<
266 260
267 install_pkgconfig: $(PC_FILE) 261 install_pkgconfig: $(PC_FILE)
268 $(call QUIET_INSTALL, $(PC_FILE)) \ 262 $(call QUIET_INSTALL, $(PC_FILE)) \
269 $(call do_install,$(PC_FILE),$ 263 $(call do_install,$(PC_FILE),$(libdir_SQ)/pkgconfig,644)
270 264
271 install: install_lib install_pkgconfig install 265 install: install_lib install_pkgconfig install_headers
272 266
273 clean: fixdep-clean !! 267 ### Cleaning rules
>> 268
>> 269 config-clean:
>> 270 $(call QUIET_CLEAN, feature-detect)
>> 271 $(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null
>> 272
>> 273 clean: config-clean
274 $(call QUIET_CLEAN, libbpf) $(RM) -rf 274 $(call QUIET_CLEAN, libbpf) $(RM) -rf $(CMD_TARGETS) \
275 *~ .*.d .*.cmd LIBBPF-CFLAGS $ !! 275 *~ .*.d .*.cmd LIBBPF-CFLAGS $(BPF_HELPER_DEFS) \
276 $(SHARED_OBJDIR) $(STATIC_OBJD 276 $(SHARED_OBJDIR) $(STATIC_OBJDIR) \
277 $(addprefix $(OUTPUT), 277 $(addprefix $(OUTPUT), \
278 *.o *.a *.so *.so. 278 *.o *.a *.so *.so.$(LIBBPF_MAJOR_VERSION) *.pc)
>> 279 $(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf
>> 280
279 281
280 PHONY += force cscope tags check check_abi che !! 282
>> 283 PHONY += force elfdep zdep bpfdep cscope tags
281 force: 284 force:
282 285
>> 286 elfdep:
>> 287 @if [ "$(feature-libelf)" != "1" ]; then echo "No libelf found"; exit 1 ; fi
>> 288
>> 289 zdep:
>> 290 @if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
>> 291
>> 292 bpfdep:
>> 293 @if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit 1 ; fi
>> 294
283 cscope: 295 cscope:
284 ls *.c *.h > cscope.files 296 ls *.c *.h > cscope.files
285 cscope -b -q -I $(srctree)/include -f 297 cscope -b -q -I $(srctree)/include -f cscope.out
286 298
287 tags: 299 tags:
288 $(RM) -f TAGS tags 300 $(RM) -f TAGS tags
289 ls *.c *.h | xargs $(TAGS_PROG) -a 301 ls *.c *.h | xargs $(TAGS_PROG) -a
290 302
291 # Declare the contents of the .PHONY variable 303 # Declare the contents of the .PHONY variable as phony. We keep that
292 # information in a variable so we can use it i 304 # information in a variable so we can use it in if_changed and friends.
293 .PHONY: $(PHONY) 305 .PHONY: $(PHONY)
294 306
295 # Delete partially updated (corrupted) files o 307 # Delete partially updated (corrupted) files on error
296 .DELETE_ON_ERROR: 308 .DELETE_ON_ERROR:
297 <<
298 help: <<
299 @echo 'libbpf common targets:' <<
300 @echo ' HINT: use "V=1" to enable ver <<
301 @echo ' all - build libraries and <<
302 @echo ' clean - remove all generate <<
303 @echo ' check - check ABI and versi <<
304 @echo '' <<
305 @echo 'libbpf install targets:' <<
306 @echo ' HINT: use "prefix"(defaults t <<
307 @echo ' to adjust target destin <<
308 @echo ' install - build and <<
309 @echo ' install_headers - install on <<
310 @echo '' <<
311 @echo 'libbpf make targets:' <<
312 @echo ' tags - use ctags to make t <<
313 @echo ' cscope - use cscope to make <<
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