xref: /dpdk/lib/meson.build (revision 7762e013)
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		'eal',
42		'ring',
43		'mempool', 'mbuf', 'pci',
44	] # only supported libraries for windows
45endif
46
47default_cflags = machine_args
48default_cflags += ['-DALLOW_EXPERIMENTAL_API']
49default_cflags += ['-DALLOW_INTERNAL_API']
50
51if cc.has_argument('-Wno-format-truncation')
52	default_cflags += '-Wno-format-truncation'
53endif
54
55enabled_libs = [] # used to print summary at the end
56
57foreach l:libraries
58	build = true
59	reason = '<unknown reason>' # set if build == false to explain why
60	name = l
61	use_function_versioning = false
62	sources = []
63	headers = []
64	includes = []
65	cflags = default_cflags
66	objs = [] # other object files to link against, used e.g. for
67	          # instruction-set optimized versions of code
68
69	# use "deps" for internal DPDK dependencies, and "ext_deps" for
70	# external package/library requirements
71	ext_deps = []
72	deps = []
73	# eal is standard dependency once built
74	if dpdk_conf.has('RTE_LIBRTE_EAL')
75		deps += ['eal']
76	endif
77
78	dir_name = 'librte_' + l
79	subdir(dir_name)
80
81	if build
82		shared_deps = ext_deps
83		static_deps = ext_deps
84		foreach d:deps
85			if not is_variable('shared_rte_' + d)
86				error('Missing internal dependency "@0@" for @1@ [@2@]'
87						.format(d, name, 'lib/' + dir_name))
88			endif
89			shared_deps += [get_variable('shared_rte_' + d)]
90			static_deps += [get_variable('static_rte_' + d)]
91		endforeach
92	endif
93
94	if not build
95		dpdk_libs_disabled += name
96		set_variable(name.underscorify() + '_disable_reason', reason)
97	else
98		enabled_libs += name
99		dpdk_conf.set('RTE_LIBRTE_' + name.to_upper(), 1)
100		install_headers(headers)
101
102		libname = 'rte_' + name
103		includes += include_directories(dir_name)
104
105		if sources.length() == 0
106			# if no C files, just set a dependency on header path
107			shared_dep = declare_dependency(include_directories: includes)
108			static_dep = shared_dep
109		else
110			if is_windows and use_function_versioning
111				message('@0@: Function versioning is not supported by Windows.'
112				.format(name))
113			endif
114
115			if use_function_versioning
116				cflags += '-DRTE_USE_FUNCTION_VERSIONING'
117			endif
118
119			# first build static lib
120			static_lib = static_library(libname,
121					sources,
122					objects: objs,
123					c_args: cflags,
124					dependencies: static_deps,
125					include_directories: includes,
126					install: true)
127			static_dep = declare_dependency(
128					include_directories: includes,
129					dependencies: static_deps)
130
131			if not use_function_versioning or is_windows
132				# use pre-build objects to build shared lib
133				sources = []
134				objs += static_lib.extract_all_objects(recursive: false)
135			else
136				# for compat we need to rebuild with
137				# RTE_BUILD_SHARED_LIB defined
138				cflags += '-DRTE_BUILD_SHARED_LIB'
139			endif
140			version_map = '@0@/@1@/rte_@2@_version.map'.format(
141					meson.current_source_dir(), dir_name, name)
142			implib = dir_name + '.dll.a'
143
144			def_file = custom_target(libname + '_def',
145				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
146				input: version_map,
147				output: '@0@_exports.def'.format(libname))
148
149			mingw_map = custom_target(libname + '_mingw',
150				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
151				input: version_map,
152				output: '@0@_mingw.map'.format(libname))
153
154			if is_ms_linker
155				lk_args = ['-Wl,/def:' + def_file.full_path(),
156					'-Wl,/implib:lib\\' + implib]
157			else
158				if is_windows
159					lk_args = ['-Wl,--version-script=' + mingw_map.full_path()]
160				else
161					lk_args = ['-Wl,--version-script=' + version_map]
162				endif
163			endif
164
165			lk_deps = [version_map, def_file, mingw_map]
166			if not is_windows
167				# on unix systems check the output of the
168				# check-symbols.sh script, using it as a
169				# dependency of the .so build
170				lk_deps += custom_target(name + '.sym_chk',
171					command: [check_symbols,
172						version_map, '@INPUT@'],
173					capture: true,
174					input: static_lib,
175					output: name + '.sym_chk')
176			endif
177
178			shared_lib = shared_library(libname,
179					sources,
180					objects: objs,
181					c_args: cflags,
182					dependencies: shared_deps,
183					include_directories: includes,
184					link_args: lk_args,
185					link_depends: lk_deps,
186					version: abi_version,
187					soversion: so_version,
188					install: true)
189			shared_dep = declare_dependency(link_with: shared_lib,
190					include_directories: includes,
191					dependencies: shared_deps)
192
193			dpdk_libraries = [shared_lib] + dpdk_libraries
194			dpdk_static_libraries = [static_lib] + dpdk_static_libraries
195		endif # sources.length() > 0
196
197		set_variable('shared_rte_' + name, shared_dep)
198		set_variable('static_rte_' + name, static_dep)
199		message('lib/@0@: Defining dependency "@1@"'.format(
200				dir_name, name))
201	endif # if build
202endforeach
203