xref: /dpdk/lib/meson.build (revision 1fe3eef5)
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		'cfgfile',
49	] # only supported libraries for windows
50endif
51
52default_cflags = machine_args
53default_cflags += ['-DALLOW_EXPERIMENTAL_API']
54default_cflags += ['-DALLOW_INTERNAL_API']
55
56if cc.has_argument('-Wno-format-truncation')
57	default_cflags += '-Wno-format-truncation'
58endif
59
60enabled_libs = [] # used to print summary at the end
61
62foreach l:libraries
63	build = true
64	reason = '<unknown reason>' # set if build == false to explain why
65	name = l
66	use_function_versioning = false
67	sources = []
68	headers = []
69	includes = []
70	cflags = default_cflags
71	objs = [] # other object files to link against, used e.g. for
72	          # instruction-set optimized versions of code
73
74	# use "deps" for internal DPDK dependencies, and "ext_deps" for
75	# external package/library requirements
76	ext_deps = []
77	deps = []
78	# eal is standard dependency once built
79	if dpdk_conf.has('RTE_LIB_EAL')
80		deps += ['eal']
81	endif
82
83	dir_name = 'librte_' + l
84	subdir(dir_name)
85
86	if build
87		shared_deps = ext_deps
88		static_deps = ext_deps
89		foreach d:deps
90			if not is_variable('shared_rte_' + d)
91				error('Missing internal dependency "@0@" for @1@ [@2@]'
92						.format(d, name, 'lib/' + dir_name))
93			endif
94			shared_deps += [get_variable('shared_rte_' + d)]
95			static_deps += [get_variable('static_rte_' + d)]
96		endforeach
97	endif
98
99	if not build
100		dpdk_libs_disabled += name
101		set_variable(name.underscorify() + '_disable_reason', reason)
102	else
103		enabled_libs += name
104		dpdk_conf.set('RTE_LIBRTE_' + name.to_upper(), 1) #old macro
105		dpdk_conf.set('RTE_LIB_' + name.to_upper(), 1) # new macro
106		install_headers(headers)
107
108		libname = 'rte_' + name
109		includes += include_directories(dir_name)
110
111		if sources.length() == 0
112			# if no C files, just set a dependency on header path
113			shared_dep = declare_dependency(include_directories: includes)
114			static_dep = shared_dep
115		else
116			if is_windows and use_function_versioning
117				message('@0@: Function versioning is not supported by Windows.'
118				.format(name))
119			endif
120
121			if use_function_versioning
122				cflags += '-DRTE_USE_FUNCTION_VERSIONING'
123			endif
124
125			# first build static lib
126			static_lib = static_library(libname,
127					sources,
128					objects: objs,
129					c_args: cflags,
130					dependencies: static_deps,
131					include_directories: includes,
132					install: true)
133			static_dep = declare_dependency(
134					include_directories: includes,
135					dependencies: static_deps)
136
137			if not use_function_versioning or is_windows
138				# use pre-build objects to build shared lib
139				sources = []
140				objs += static_lib.extract_all_objects(recursive: false)
141			else
142				# for compat we need to rebuild with
143				# RTE_BUILD_SHARED_LIB defined
144				cflags += '-DRTE_BUILD_SHARED_LIB'
145			endif
146			version_map = '@0@/@1@/version.map'.format(
147					meson.current_source_dir(), dir_name)
148			implib = dir_name + '.dll.a'
149
150			def_file = custom_target(libname + '_def',
151				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
152				input: version_map,
153				output: '@0@_exports.def'.format(libname))
154
155			mingw_map = custom_target(libname + '_mingw',
156				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
157				input: version_map,
158				output: '@0@_mingw.map'.format(libname))
159
160			if is_ms_linker
161				lk_args = ['-Wl,/def:' + def_file.full_path()]
162				if meson.version().version_compare('<0.54.0')
163					lk_args += ['-Wl,/implib:lib\\' + implib]
164				endif
165			else
166				if is_windows
167					lk_args = ['-Wl,--version-script=' + mingw_map.full_path()]
168				else
169					lk_args = ['-Wl,--version-script=' + version_map]
170				endif
171			endif
172
173			lk_deps = [version_map, def_file, mingw_map]
174			if not is_windows
175				# on unix systems check the output of the
176				# check-symbols.sh script, using it as a
177				# dependency of the .so build
178				lk_deps += custom_target(name + '.sym_chk',
179					command: [check_symbols,
180						version_map, '@INPUT@'],
181					capture: true,
182					input: static_lib,
183					output: name + '.sym_chk')
184			endif
185
186			shared_lib = shared_library(libname,
187					sources,
188					objects: objs,
189					c_args: cflags,
190					dependencies: shared_deps,
191					include_directories: includes,
192					link_args: lk_args,
193					link_depends: lk_deps,
194					version: abi_version,
195					soversion: so_version,
196					install: true)
197			shared_dep = declare_dependency(link_with: shared_lib,
198					include_directories: includes,
199					dependencies: shared_deps)
200
201			dpdk_libraries = [shared_lib] + dpdk_libraries
202			dpdk_static_libraries = [static_lib] + dpdk_static_libraries
203		endif # sources.length() > 0
204
205		set_variable('shared_rte_' + name, shared_dep)
206		set_variable('static_rte_' + name, static_dep)
207		message('lib/@0@: Defining dependency "@1@"'.format(
208				dir_name, name))
209	endif # if build
210endforeach
211