1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017-2019 Intel Corporation
8 # Defines the order in which the drivers are buit.
9 dpdk_driver_classes = ['common',
11 'mempool', # depends on common and bus.
12 'raw', # depends on common and bus.
13 'net', # depends on common, bus, mempool and raw.
14 'crypto', # depends on common, bus and mempool (net in future).
15 'compress', # depends on common, bus, mempool.
16 'event', # depends on common, bus, mempool and net.
17 'baseband'] # depends on common and bus.
19 disabled_drivers = get_option('disable_drivers').split(',')
21 default_cflags = machine_args
22 if cc.has_argument('-Wno-format-truncation')
23 default_cflags += '-Wno-format-truncation'
26 foreach class:dpdk_driver_classes
29 config_flag_fmt = '' # format string used to set the value in dpdk_conf
30 driver_name_fmt = '' # format string for driver name, used to name
31 # the library, the dependency and to find the
32 # version file for linking
38 drv_path = join_paths(class, drv)
40 # set up empty variables used for build
41 build = true # set to false to disable, e.g. missing deps
42 reason = '<unknown reason>' # set if build == false to explain
45 allow_experimental_apis = false
48 cflags = default_cflags
49 includes = [include_directories(drv_path)]
50 # set up internal deps. Drivers can append/override as necessary
52 # ext_deps: Stores external library dependency got
53 # using dependency() (preferred) or find_library().
54 # For the find_library() case (but not with dependency()) we also
55 # need to specify the "-l" flags in pkgconfig_extra_libs variable
56 # too, so that it can be reflected in the pkgconfig output for
59 pkgconfig_extra_libs = []
61 # pull in driver directory which should assign to each of the above
64 # skip disabled drivers. For meson 0.49 change this to use
66 foreach disable_path: disabled_drivers
67 if drv_path == disable_path
69 reason = 'Explicitly disabled via build config'
73 # get dependency objs from strings
74 shared_deps = ext_deps
75 static_deps = ext_deps
77 if not is_variable('shared_rte_' + d)
79 reason = 'Missing internal dependency, "@0@"'.format(d)
80 message('Disabling @1@ [@2@]: missing internal dependency "@0@"'
81 .format(d, name, 'drivers/' + drv_path))
83 shared_deps += [get_variable('shared_rte_' + d)]
84 static_deps += [get_variable('static_rte_' + d)]
90 # some driver directories are placeholders which
91 # are never built, so we allow suppression of the
92 # component disable printout in those cases
94 dpdk_drvs_disabled += drv_path
95 set_variable(drv_path.underscorify() +
96 '_disable_reason', reason)
101 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1)
102 lib_name = driver_name_fmt.format(name)
104 if allow_experimental_apis
105 cflags += '-DALLOW_EXPERIMENTAL_API'
108 dpdk_extra_ldflags += pkgconfig_extra_libs
110 # generate pmdinfo sources by building a temporary
111 # lib and then running pmdinfogen on the contents of
112 # that lib. The final lib reuses the object files and
113 # adds in the new source file.
114 out_filename = lib_name + '.pmd.c'
115 tmp_lib = static_library('tmp_' + lib_name,
117 include_directories: includes,
118 dependencies: static_deps,
120 objs += tmp_lib.extract_all_objects()
121 sources = custom_target(out_filename,
122 command: [pmdinfo, tmp_lib.full_path(),
123 '@OUTPUT@', pmdinfogen],
124 output: out_filename,
125 depends: [pmdinfogen, tmp_lib])
127 if get_option('per_library_versions')
128 lib_version = '@0@.1'.format(version)
129 so_version = '@0@'.format(version)
131 lib_version = major_version
132 so_version = major_version
135 # now build the static driver
136 static_lib = static_library(lib_name,
139 include_directories: includes,
140 dependencies: static_deps,
144 # now build the shared driver
145 version_map = '@0@/@1@/@2@_version.map'.format(
146 meson.current_source_dir(),
148 implib = dir_name + '.dll.a'
150 def_file = custom_target(lib_name + '_def',
151 command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'],
153 output: '@0@_exports.def'.format(lib_name))
154 lk_deps = [version_map, def_file]
156 lk_args = ['-Wl,/def:' + def_file.full_path(),
157 '-Wl,/implib:lib\\' + implib]
159 lk_args = ['-Wl,--version-script=' + version_map]
160 # on unix systems check the output of the
161 # experimental syms script, using it as a
162 # dependency of the .so build
163 lk_deps += custom_target(lib_name + '.exp_chk',
164 command: [check_experimental_syms,
165 version_map, '@INPUT@'],
168 output: lib_name + '.exp_chk')
171 shared_lib = shared_library(lib_name,
174 include_directories: includes,
175 dependencies: shared_deps,
178 link_depends: lk_deps,
179 version: lib_version,
180 soversion: so_version,
182 install_dir: driver_install_path)
184 # create a dependency object and add it to the global dictionary so
185 # testpmd or other built-in apps can find it if necessary
186 shared_dep = declare_dependency(link_with: shared_lib,
187 include_directories: includes,
188 dependencies: shared_deps)
189 static_dep = declare_dependency(link_with: static_lib,
190 include_directories: includes,
191 dependencies: static_deps)
193 dpdk_drivers += static_lib
195 set_variable('shared_@0@'.format(lib_name), shared_dep)
196 set_variable('static_@0@'.format(lib_name), static_dep)
197 dependency_name = ''.join(lib_name.split('rte_'))
198 message('drivers/@0@: Defining dependency "@1@"'.format(
199 drv_path, dependency_name))
203 set_variable(class + '_drivers', class_drivers)