xref: /dpdk/lib/meson.build (revision 444e5567) 
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',
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','eal',
41		'pci',
42	] # only supported libraries for windows
43endif
44
45default_cflags = machine_args
46default_cflags += ['-DALLOW_EXPERIMENTAL_API']
47default_cflags += ['-DALLOW_INTERNAL_API']
48
49if cc.has_argument('-Wno-format-truncation')
50	default_cflags += '-Wno-format-truncation'
51endif
52
53enabled_libs = [] # used to print summary at the end
54
55foreach l:libraries
56	build = true
57	reason = '<unknown reason>' # set if build == false to explain why
58	name = l
59	use_function_versioning = false
60	sources = []
61	headers = []
62	includes = []
63	cflags = default_cflags
64	objs = [] # other object files to link against, used e.g. for
65	          # instruction-set optimized versions of code
66
67	# use "deps" for internal DPDK dependencies, and "ext_deps" for
68	# external package/library requirements
69	ext_deps = []
70	deps = []
71	# eal is standard dependency once built
72	if dpdk_conf.has('RTE_LIBRTE_EAL')
73		deps += ['eal']
74	endif
75
76	dir_name = 'librte_' + l
77	subdir(dir_name)
78
79	if build
80		shared_deps = ext_deps
81		static_deps = ext_deps
82		foreach d:deps
83			if not is_variable('shared_rte_' + d)
84				error('Missing internal dependency "@0@" for @1@ [@2@]'
85						.format(d, name, 'lib/' + dir_name))
86			endif
87			shared_deps += [get_variable('shared_rte_' + d)]
88			static_deps += [get_variable('static_rte_' + d)]
89		endforeach
90	endif
91
92	if not build
93		dpdk_libs_disabled += name
94		set_variable(name.underscorify() + '_disable_reason', reason)
95	else
96		enabled_libs += name
97		dpdk_conf.set('RTE_LIBRTE_' + name.to_upper(), 1)
98		install_headers(headers)
99
100		libname = 'rte_' + name
101		includes += include_directories(dir_name)
102
103		if sources.length() == 0
104			# if no C files, just set a dependency on header path
105			shared_dep = declare_dependency(include_directories: includes)
106			static_dep = shared_dep
107		else
108
109			if use_function_versioning
110				cflags += '-DRTE_USE_FUNCTION_VERSIONING'
111			endif
112
113			version_map = '@0@/@1@/rte_@2@_version.map'.format(
114					meson.current_source_dir(), dir_name, name)
115
116			is_stable = run_command(is_stable_cmd,
117					files(version_map)).returncode() == 0
118
119			if is_stable
120				lib_version = abi_version
121				so_version = stable_so_version
122			else
123				lib_version = experimental_abi_version
124				so_version = experimental_so_version
125			endif
126
127			# first build static lib
128			static_lib = static_library(libname,
129					sources,
130					objects: objs,
131					c_args: cflags,
132					dependencies: static_deps,
133					include_directories: includes,
134					install: true)
135			static_dep = declare_dependency(link_with: static_lib,
136					include_directories: includes,
137					dependencies: static_deps)
138
139			if not use_function_versioning
140				# use pre-build objects to build shared lib
141				sources = []
142				objs += static_lib.extract_all_objects(recursive: false)
143			else
144				# for compat we need to rebuild with
145				# RTE_BUILD_SHARED_LIB defined
146				cflags += '-DRTE_BUILD_SHARED_LIB'
147			endif
148			version_map = '@0@/@1@/rte_@2@_version.map'.format(
149					meson.current_source_dir(), dir_name, name)
150			implib = dir_name + '.dll.a'
151
152			def_file = custom_target(libname + '_def',
153				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
154				input: version_map,
155				output: '@0@_exports.def'.format(libname))
156
157			mingw_map = custom_target(libname + '_mingw',
158				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
159				input: version_map,
160				output: '@0@_mingw.map'.format(libname))
161
162			if is_ms_linker
163				lk_args = ['-Wl,/def:' + def_file.full_path(),
164					'-Wl,/implib:lib\\' + implib]
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: lib_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			if libname == 'rte_node'
204				dpdk_graph_nodes = [static_lib]
205			endif
206		endif # sources.length() > 0
207
208		set_variable('shared_rte_' + name, shared_dep)
209		set_variable('static_rte_' + name, static_dep)
210		message('lib/@0@: Defining dependency "@1@"'.format(
211				dir_name, name))
212	endif # if build
213endforeach
214