1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#
# Copyright (C) 2020 Tony Ambardar <itugrok@yahoo.com>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=bpftools
PKG_VERSION:=5.11.2
PKG_RELEASE:=1
PKG_SOURCE:=linux-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=@KERNEL/linux/kernel/v5.x
PKG_HASH:=904a5b3cbaf5264ef8da6c7a5445fa7ea19168ad77fb83a7cc1b8ba95d52d0a0
PKG_MAINTAINER:=Tony Ambardar <itugrok@yahoo.com>
PKG_USE_MIPS16:=0
PKG_BUILD_PARALLEL:=1
PKG_INSTALL:=1
LINUX_VERSION:=$(PKG_VERSION)
LINUX_TLD:=linux-$(LINUX_VERSION)
BPF_FILES:= \
kernel/bpf scripts tools/Makefile tools/bpf tools/perf/perf-sys.h \
tools/arch tools/build tools/include tools/lib tools/scripts
TAR_OPTIONS+= \
--transform="s;$(LINUX_TLD)/;$(PKG_NAME)-$(PKG_VERSION)/;" \
$(addprefix $(LINUX_TLD)/,$(BPF_FILES))
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/nls.mk
define Package/bpftool/Default
SECTION:=net
CATEGORY:=Network
TITLE:=bpftool - eBPF subsystem utility
LICENSE:=GPL-2.0-only OR BSD-2-Clause
URL:=http://www.kernel.org
DEPENDS:=+libelf
endef
define Package/bpftool-minimal
$(call Package/bpftool/Default)
TITLE+= (Minimal)
VARIANT:=minimal
DEFAULT_VARIANT:=1
PROVIDES:=bpftool
ALTERNATIVES:=200:/usr/sbin/bpftool:/usr/libexec/bpftool-minimal
endef
define Package/bpftool-full
$(call Package/bpftool/Default)
TITLE+= (Full)
VARIANT:=full
PROVIDES:=bpftool
ALTERNATIVES:=300:/usr/sbin/bpftool:/usr/libexec/bpftool-full
DEPENDS+= +libbfd +libopcodes
endef
define Package/bpftool-minimal/description
A tool for inspection and simple manipulation of eBPF programs and maps.
endef
define Package/bpftool-full/description
A tool for inspection and simple manipulation of eBPF programs and maps.
This full version uses libbfd and libopcodes to support disassembly of
eBPF programs and jited code.
endef
define Package/libbpf
SECTION:=libs
CATEGORY:=Libraries
TITLE:=libbpf - eBPF helper library
VARIANT:=lib
LICENSE:=LGPL-2.1 OR BSD-2-Clause
ABI_VERSION:=0
URL:=http://www.kernel.org
DEPENDS:=+libelf
endef
define Package/libbpf/description
libbpf is a library for loading eBPF programs and reading and manipulating eBPF objects from user-space.
endef
# LTO not compatible with DSO using PIC
ifneq ($(BUILD_VARIANT),lib)
TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
TARGET_LDFLAGS += -Wl,--gc-sections
endif
ifneq ($(INTL_FULL),)
TARGET_LDFLAGS += -Wl,-lintl
endif
MAKE_FLAGS += \
EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS)" \
BPFTOOL_VERSION="$(LINUX_VERSION)" \
FEATURES_DUMP="$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt" \
OUTPUT="$(PKG_BUILD_DIR)/" \
prefix="/usr" \
$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='')
ifeq ($(BUILD_VARIANT),full)
HAVE_LIBBFD:=1
HAVE_LIBCAP:=0
HAVE_CLANG:=0
MAKE_PATH:=tools/bpf/bpftool
else ifeq ($(BUILD_VARIANT),minimal)
HAVE_LIBBFD:=0
HAVE_LIBCAP:=0
HAVE_CLANG:=0
MAKE_PATH:=tools/bpf/bpftool
else ifeq ($(BUILD_VARIANT),lib)
HAVE_LIBBFD:=0
HAVE_LIBCAP:=0
HAVE_CLANG:=0
MAKE_PATH:=tools/lib/bpf
endif
# Perform a "throw-away" make to create a FEATURE-DUMP.* file to edit later.
# The "//" in the make target is actually needed, very unPOSIXly.
define Build/Configure
+$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR)/tools/bpf/bpftool \
$(MAKE_FLAGS) FEATURES_DUMP= $(PKG_BUILD_DIR)//libbpf/libbpf.a
(cd $(PKG_BUILD_DIR); cat FEATURE-DUMP.bpftool libbpf/FEATURE-DUMP.libbpf \
| sort | uniq > FEATURE-DUMP.openwrt)
$(SED) 's/feature-libbfd=1/feature-libbfd=$(HAVE_LIBBFD)/' \
-e 's/feature-libcap=1/feature-libcap=$(HAVE_LIBCAP)/' \
-e 's/feature-clang-bpf-global-var=1/feature-clang-bpf-global-var=$(HAVE_CLANG)/' \
$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt
endef
define Build/InstallDev/libbpf
$(INSTALL_DIR) $(1)/usr/include/bpf
$(CP) $(PKG_INSTALL_DIR)/usr/include/bpf/*.h $(1)/usr/include/bpf/
$(INSTALL_DIR) $(1)/usr/lib
$(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.{a,so*} \
$(1)/usr/lib/
$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
$(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/pkgconfig/libbpf.pc \
$(1)/usr/lib/pkgconfig/
$(SED) 's,/usr/include,$$$${prefix}/include,g' \
$(1)/usr/lib/pkgconfig/libbpf.pc
$(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' \
$(1)/usr/lib/pkgconfig/libbpf.pc
endef
ifeq ($(BUILD_VARIANT),lib)
Build/InstallDev=$(Build/InstallDev/libbpf)
endif
define Package/bpftool-$(BUILD_VARIANT)/install
$(INSTALL_DIR) $(1)/usr/libexec
$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/bpftool \
$(1)/usr/libexec/bpftool-$(BUILD_VARIANT)
endef
define Package/libbpf/install
$(INSTALL_DIR) $(1)/usr/lib
$(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.so.* $(1)/usr/lib/
endef
$(eval $(call BuildPackage,libbpf))
$(eval $(call BuildPackage,bpftool-full))
$(eval $(call BuildPackage,bpftool-minimal))
|
