24351cc40a13695374d3f0cea28853f1cd59a39b
[dpdk.git] / lib / meson.build
1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017 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.
11 libraries = [ 'compat', # just a header, used for versioning
12         'kvargs',
13         'eal', 'ring', 'mempool', 'mbuf', 'net', 'ethdev', 'pci', # core
14         'metrics', # bitrate/latency stats depends on this
15         'hash',    # efd depends on this
16         'timer',   # eventdev depends on this
17         'acl', 'bbdev', 'bitratestats', 'cfgfile',
18         'cmdline', 'compressdev', 'cryptodev',
19         'distributor', 'efd', 'eventdev',
20         'gro', 'gso', 'ip_frag', 'jobstats',
21         'kni', 'latencystats', 'lpm', 'member',
22         'meter', 'power', 'pdump', 'rawdev',
23         'reorder', 'sched', 'security', 'vhost',
24         # add pkt framework libs which use other libs from above
25         'port', 'table', 'pipeline',
26         # flow_classify lib depends on pkt framework table lib
27         'flow_classify', 'bpf']
28
29 default_cflags = machine_args
30 if cc.has_argument('-Wno-format-truncation')
31         default_cflags += '-Wno-format-truncation'
32 endif
33
34 enabled_libs = [] # used to print summary at the end
35
36 # -D_GNU_SOURCE unconditionally
37 default_cflags += '-D_GNU_SOURCE'
38
39 foreach l:libraries
40         build = true
41         name = l
42         version = 1
43         allow_experimental_apis = false
44         sources = []
45         headers = []
46         includes = []
47         cflags = default_cflags
48         objs = [] # other object files to link against, used e.g. for
49                   # instruction-set optimized versions of code
50
51         # use "deps" for internal DPDK dependencies, and "ext_deps" for
52         # external package/library requirements
53         ext_deps = []
54         deps = []
55         # eal is standard dependency once built
56         if dpdk_conf.has('RTE_LIBRTE_EAL')
57                 deps += ['eal']
58         endif
59
60         dir_name = 'librte_' + l
61         subdir(dir_name)
62
63         if build
64                 enabled_libs += name
65                 dpdk_conf.set('RTE_LIBRTE_' + name.to_upper(), 1)
66                 install_headers(headers)
67
68                 libname = 'rte_' + name
69                 includes += include_directories(dir_name)
70
71                 if sources.length() == 0
72                         # if no C files, just set a dependency on header path
73                         shared_dep = declare_dependency(include_directories: includes)
74                         static_dep = shared_dep
75                 else
76                         shared_deps = ext_deps
77                         static_deps = ext_deps
78                         foreach d:deps
79                                 if not is_variable('shared_rte_' + d)
80                                         error('Missing dependency ' + d +
81                                                 ' for library ' + lib_name)
82                                 endif
83                                 shared_deps += [get_variable('shared_rte_' + d)]
84                                 static_deps += [get_variable('static_rte_' + d)]
85                         endforeach
86
87                         if allow_experimental_apis
88                                 cflags += '-DALLOW_EXPERIMENTAL_API'
89                         endif
90
91                         if get_option('per_library_versions')
92                                 lib_version = '@0@.1'.format(version)
93                                 so_version = '@0@'.format(version)
94                         else
95                                 prj_ver = meson.project_version().split('.')
96                                 lib_version = '@0@.@1@'.format(
97                                                 prj_ver.get(0), prj_ver.get(1))
98                                 so_version = lib_version
99                         endif
100
101                         # first build static lib
102                         static_lib = static_library(libname,
103                                         sources,
104                                         objects: objs,
105                                         c_args: cflags,
106                                         dependencies: static_deps,
107                                         include_directories: includes,
108                                         install: true)
109                         static_dep = declare_dependency(link_with: static_lib,
110                                         include_directories: includes,
111                                         dependencies: static_deps)
112
113                         # then use pre-build objects to build shared lib
114                         sources = []
115                         objs += static_lib.extract_all_objects(recursive: false)
116                         version_map = '@0@/@1@/rte_@2@_version.map'.format(
117                                         meson.current_source_dir(), dir_name, name)
118                         shared_lib = shared_library(libname,
119                                         sources,
120                                         objects: objs,
121                                         c_args: cflags,
122                                         dependencies: shared_deps,
123                                         include_directories: includes,
124                                         link_args: '-Wl,--version-script=' + version_map,
125                                         link_depends: version_map,
126                                         version: lib_version,
127                                         soversion: so_version,
128                                         install: true)
129                         shared_dep = declare_dependency(link_with: shared_lib,
130                                         include_directories: includes,
131                                         dependencies: shared_deps)
132
133                         dpdk_libraries = [shared_lib] + dpdk_libraries
134                 endif # sources.length() > 0
135
136                 set_variable('shared_' + libname, shared_dep)
137                 set_variable('static_' + libname, static_dep)
138         endif # if build
139 endforeach