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