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
44 allow_experimental_apis = false
47 cflags = default_cflags
48 includes = [include_directories(drv_path)]
49 # set up internal deps. Drivers can append/override as necessary
51 # ext_deps: Stores external library dependency got
52 # using dependency() (preferred) or find_library().
53 # For the find_library() case (but not with dependency()) we also
54 # need to specify the "-l" flags in pkgconfig_extra_libs variable
55 # too, so that it can be reflected in the pkgconfig output for
58 pkgconfig_extra_libs = []
60 # pull in driver directory which should assign to each of the above
63 # skip disabled drivers. For meson 0.49 change this to use
65 foreach disable_path: disabled_drivers
66 if drv_path == disable_path
68 reason = 'Explicitly disabled via build config'
72 # get dependency objs from strings
73 shared_deps = ext_deps
74 static_deps = ext_deps
76 if not is_variable('shared_rte_' + d)
78 reason = 'Missing internal dependency, "@0@"'.format(d)
79 message('Disabling @1@ [@2@]: missing internal dependency "@0@"'
80 .format(d, name, 'drivers/' + drv_path))
82 shared_deps += [get_variable('shared_rte_' + d)]
83 static_deps += [get_variable('static_rte_' + d)]
89 # some driver directories are placeholders which
90 # are never built, so we allow suppression of the
91 # component disable printout in those cases
93 dpdk_drvs_disabled += drv_path
94 set_variable(drv_path.underscorify() +
95 '_disable_reason', reason)
100 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1)
101 lib_name = driver_name_fmt.format(name)
103 if allow_experimental_apis
104 cflags += '-DALLOW_EXPERIMENTAL_API'
107 dpdk_extra_ldflags += pkgconfig_extra_libs
109 # generate pmdinfo sources by building a temporary
110 # lib and then running pmdinfogen on the contents of
111 # that lib. The final lib reuses the object files and
112 # adds in the new source file.
113 out_filename = lib_name + '.pmd.c'
114 tmp_lib = static_library('tmp_' + lib_name,
116 include_directories: includes,
117 dependencies: static_deps,
119 objs += tmp_lib.extract_all_objects()
120 sources = custom_target(out_filename,
121 command: [pmdinfo, tmp_lib.full_path(),
122 '@OUTPUT@', pmdinfogen],
123 output: out_filename,
124 depends: [pmdinfogen, tmp_lib])
126 version_map = '@0@/@1@/@2@_version.map'.format(
127 meson.current_source_dir(),
130 is_experimental = run_command(is_experimental_cmd,
131 files(version_map)).returncode()
133 if is_experimental != 0
134 lib_version = experimental_abi_version
135 so_version = experimental_abi_version
137 lib_version = abi_version
138 so_version = abi_version
141 # now build the static driver
142 static_lib = static_library(lib_name,
145 include_directories: includes,
146 dependencies: static_deps,
150 # now build the shared driver
151 version_map = '@0@/@1@/@2@_version.map'.format(
152 meson.current_source_dir(),
154 implib = dir_name + '.dll.a'
156 def_file = custom_target(lib_name + '_def',
157 command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'],
159 output: '@0@_exports.def'.format(lib_name))
160 lk_deps = [version_map, def_file]
162 lk_args = ['-Wl,/def:' + def_file.full_path(),
163 '-Wl,/implib:lib\\' + implib]
165 lk_args = ['-Wl,--version-script=' + version_map]
166 # on unix systems check the output of the
167 # experimental syms script, using it as a
168 # dependency of the .so build
169 lk_deps += custom_target(lib_name + '.exp_chk',
170 command: [check_experimental_syms,
171 version_map, '@INPUT@'],
174 output: lib_name + '.exp_chk')
177 shared_lib = shared_library(lib_name,
180 include_directories: includes,
181 dependencies: shared_deps,
184 link_depends: lk_deps,
185 version: lib_version,
186 soversion: so_version,
188 install_dir: driver_install_path)
190 # create a dependency object and add it to the global dictionary so
191 # testpmd or other built-in apps can find it if necessary
192 shared_dep = declare_dependency(link_with: shared_lib,
193 include_directories: includes,
194 dependencies: shared_deps)
195 static_dep = declare_dependency(link_with: static_lib,
196 include_directories: includes,
197 dependencies: static_deps)
199 dpdk_drivers += static_lib
201 set_variable('shared_@0@'.format(lib_name), shared_dep)
202 set_variable('static_@0@'.format(lib_name), static_dep)
203 dependency_name = ''.join(lib_name.split('rte_'))
204 message('drivers/@0@: Defining dependency "@1@"'.format(
205 drv_path, dependency_name))
209 set_variable(class + '_drivers', class_drivers)