xref: /dpdk/lib/meson.build (revision 9b83106d)
1# SPDX-License-Identifier: BSD-3-Clause
2# Copyright(c) 2017-2019 Intel Corporation
3
4
5# process all libraries equally, as far as possible
6# "core" libs first, then others alphebetically as far as possible
7# NOTE: for speed of meson runs, the dependencies in the subdirectories
8# sometimes skip deps that would be implied by others, e.g. if mempool is
9# given as a dep, no need to mention ring. This is especially true for the
10# core libs which are widely reused, so their deps are kept to a minimum.
11libraries = [
12	'kvargs', # eal depends on kvargs
13	'telemetry', # basic info querying
14	'eal', # everything depends on eal
15	'ring',
16	'rcu', # rcu depends on ring
17	'mempool', 'mbuf', 'net', 'meter', 'ethdev', 'pci', # core
18	'cmdline',
19	'metrics', # bitrate/latency stats depends on this
20	'hash',    # efd depends on this
21	'timer',   # eventdev depends on this
22	'acl', 'bbdev', 'bitratestats', 'cfgfile',
23	'compressdev', 'cryptodev',
24	'distributor', 'efd', 'eventdev',
25	'gro', 'gso', 'ip_frag', 'jobstats',
26	'kni', 'latencystats', 'lpm', 'member',
27	'power', 'pdump', 'rawdev', 'regexdev',
28	'rib', 'reorder', 'sched', 'security', 'stack', 'vhost',
29	# ipsec lib depends on net, crypto and security
30	'ipsec',
31	#fib lib depends on rib
32	'fib',
33	# add pkt framework libs which use other libs from above
34	'port', 'table', 'pipeline',
35	# flow_classify lib depends on pkt framework table lib
36	'flow_classify', 'bpf', 'graph', 'node']
37
38if is_windows
39	libraries = [
40		'kvargs',
41		'telemetry',
42		'eal',
43		'ring',
44		'rcu',
45		'mempool', 'mbuf', 'net', 'meter', 'ethdev', 'pci',
46		'cmdline',
47		'hash',
48	] # only supported libraries for windows
49endif
50
51default_cflags = machine_args
52default_cflags += ['-DALLOW_EXPERIMENTAL_API']
53default_cflags += ['-DALLOW_INTERNAL_API']
54
55if cc.has_argument('-Wno-format-truncation')
56	default_cflags += '-Wno-format-truncation'
57endif
58
59enabled_libs = [] # used to print summary at the end
60
61foreach l:libraries
62	build = true
63	reason = '<unknown reason>' # set if build == false to explain why
64	name = l
65	use_function_versioning = false
66	sources = []
67	headers = []
68	includes = []
69	cflags = default_cflags
70	objs = [] # other object files to link against, used e.g. for
71	          # instruction-set optimized versions of code
72
73	# use "deps" for internal DPDK dependencies, and "ext_deps" for
74	# external package/library requirements
75	ext_deps = []
76	deps = []
77	# eal is standard dependency once built
78	if dpdk_conf.has('RTE_LIB_EAL')
79		deps += ['eal']
80	endif
81
82	dir_name = 'librte_' + l
83	subdir(dir_name)
84
85	if build
86		shared_deps = ext_deps
87		static_deps = ext_deps
88		foreach d:deps
89			if not is_variable('shared_rte_' + d)
90				error('Missing internal dependency "@0@" for @1@ [@2@]'
91						.format(d, name, 'lib/' + dir_name))
92			endif
93			shared_deps += [get_variable('shared_rte_' + d)]
94			static_deps += [get_variable('static_rte_' + d)]
95		endforeach
96	endif
97
98	if not build
99		dpdk_libs_disabled += name
100		set_variable(name.underscorify() + '_disable_reason', reason)
101	else
102		enabled_libs += name
103		dpdk_conf.set('RTE_LIBRTE_' + name.to_upper(), 1) #old macro
104		dpdk_conf.set('RTE_LIB_' + name.to_upper(), 1) # new macro
105		install_headers(headers)
106
107		libname = 'rte_' + name
108		includes += include_directories(dir_name)
109
110		if sources.length() == 0
111			# if no C files, just set a dependency on header path
112			shared_dep = declare_dependency(include_directories: includes)
113			static_dep = shared_dep
114		else
115			if is_windows and use_function_versioning
116				message('@0@: Function versioning is not supported by Windows.'
117				.format(name))
118			endif
119
120			if use_function_versioning
121				cflags += '-DRTE_USE_FUNCTION_VERSIONING'
122			endif
123
124			# first build static lib
125			static_lib = static_library(libname,
126					sources,
127					objects: objs,
128					c_args: cflags,
129					dependencies: static_deps,
130					include_directories: includes,
131					install: true)
132			static_dep = declare_dependency(
133					include_directories: includes,
134					dependencies: static_deps)
135
136			if not use_function_versioning or is_windows
137				# use pre-build objects to build shared lib
138				sources = []
139				objs += static_lib.extract_all_objects(recursive: false)
140			else
141				# for compat we need to rebuild with
142				# RTE_BUILD_SHARED_LIB defined
143				cflags += '-DRTE_BUILD_SHARED_LIB'
144			endif
145			version_map = '@0@/@1@/version.map'.format(
146					meson.current_source_dir(), dir_name)
147			implib = dir_name + '.dll.a'
148
149			def_file = custom_target(libname + '_def',
150				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
151				input: version_map,
152				output: '@0@_exports.def'.format(libname))
153
154			mingw_map = custom_target(libname + '_mingw',
155				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
156				input: version_map,
157				output: '@0@_mingw.map'.format(libname))
158
159			if is_ms_linker
160				lk_args = ['-Wl,/def:' + def_file.full_path(),
161					'-Wl,/implib:lib\\' + implib]
162			else
163				if is_windows
164					lk_args = ['-Wl,--version-script=' + mingw_map.full_path()]
165				else
166					lk_args = ['-Wl,--version-script=' + version_map]
167				endif
168			endif
169
170			lk_deps = [version_map, def_file, mingw_map]
171			if not is_windows
172				# on unix systems check the output of the
173				# check-symbols.sh script, using it as a
174				# dependency of the .so build
175				lk_deps += custom_target(name + '.sym_chk',
176					command: [check_symbols,
177						version_map, '@INPUT@'],
178					capture: true,
179					input: static_lib,
180					output: name + '.sym_chk')
181			endif
182
183			shared_lib = shared_library(libname,
184					sources,
185					objects: objs,
186					c_args: cflags,
187					dependencies: shared_deps,
188					include_directories: includes,
189					link_args: lk_args,
190					link_depends: lk_deps,
191					version: abi_version,
192					soversion: so_version,
193					install: true)
194			shared_dep = declare_dependency(link_with: shared_lib,
195					include_directories: includes,
196					dependencies: shared_deps)
197
198			dpdk_libraries = [shared_lib] + dpdk_libraries
199			dpdk_static_libraries = [static_lib] + dpdk_static_libraries
200		endif # sources.length() > 0
201
202		set_variable('shared_rte_' + name, shared_dep)
203		set_variable('static_rte_' + name, static_dep)
204		message('lib/@0@: Defining dependency "@1@"'.format(
205				dir_name, name))
206	endif # if build
207endforeach
208