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 'net', # depends on common, bus, mempool
13 'raw', # depends on common, bus and net.
14 'crypto', # depends on common, bus and mempool (net in future).
15 'compress', # depends on common, bus, mempool.
16 'vdpa', # depends on common, bus and mempool.
17 'event', # depends on common, bus, mempool and net.
18 'baseband'] # depends on common and bus.
20 disabled_drivers = get_option('disable_drivers').split(',')
22 default_cflags = machine_args
23 if cc.has_argument('-Wno-format-truncation')
24 default_cflags += '-Wno-format-truncation'
27 foreach class:dpdk_driver_classes
30 config_flag_fmt = '' # format string used to set the value in dpdk_conf
31 driver_name_fmt = '' # format string for driver name, used to name
32 # the library, the dependency and to find the
33 # version file for linking
39 drv_path = join_paths(class, drv)
41 # set up empty variables used for build
42 build = true # set to false to disable, e.g. missing deps
43 reason = '<unknown reason>' # set if build == false to explain
46 allow_experimental_apis = false
49 cflags = default_cflags
50 includes = [include_directories(drv_path)]
51 # set up internal deps. Drivers can append/override as necessary
53 # ext_deps: Stores external library dependency got
54 # using dependency() (preferred) or find_library().
55 # For the find_library() case (but not with dependency()) we also
56 # need to specify the "-l" flags in pkgconfig_extra_libs variable
57 # too, so that it can be reflected in the pkgconfig output for
60 pkgconfig_extra_libs = []
62 # pull in driver directory which should assign to each of the above
65 # skip disabled drivers. For meson 0.49 change this to use
67 foreach disable_path: disabled_drivers
68 if drv_path == disable_path
70 reason = 'Explicitly disabled via build config'
74 # get dependency objs from strings
75 shared_deps = ext_deps
76 static_deps = ext_deps
78 if not is_variable('shared_rte_' + d)
80 reason = 'Missing internal dependency, "@0@"'.format(d)
81 message('Disabling @1@ [@2@]: missing internal dependency "@0@"'
82 .format(d, name, 'drivers/' + drv_path))
84 shared_deps += [get_variable('shared_rte_' + d)]
85 static_deps += [get_variable('static_rte_' + d)]
91 # some driver directories are placeholders which
92 # are never built, so we allow suppression of the
93 # component disable printout in those cases
95 dpdk_drvs_disabled += drv_path
96 set_variable(drv_path.underscorify() +
97 '_disable_reason', reason)
100 class_drivers += name
105 dpdk_conf.set(config_flag_fmt.format(fmt_name.to_upper()),1)
106 lib_name = driver_name_fmt.format(fmt_name)
108 if allow_experimental_apis
109 cflags += '-DALLOW_EXPERIMENTAL_API'
112 dpdk_extra_ldflags += pkgconfig_extra_libs
114 # generate pmdinfo sources by building a temporary
115 # lib and then running pmdinfogen on the contents of
116 # that lib. The final lib reuses the object files and
117 # adds in the new source file.
118 out_filename = lib_name + '.pmd.c'
119 tmp_lib = static_library('tmp_' + lib_name,
121 include_directories: includes,
122 dependencies: static_deps,
124 objs += tmp_lib.extract_all_objects()
125 sources = custom_target(out_filename,
126 command: [pmdinfo, tmp_lib.full_path(),
127 '@OUTPUT@', pmdinfogen],
128 output: out_filename,
129 depends: [pmdinfogen, tmp_lib])
131 version_map = '@0@/@1@/@2@_version.map'.format(
132 meson.current_source_dir(),
135 is_experimental = run_command(is_experimental_cmd,
136 files(version_map)).returncode()
138 if is_experimental != 0
139 lib_version = experimental_abi_version
140 so_version = experimental_so_version
142 lib_version = abi_version
143 so_version = stable_so_version
146 # now build the static driver
147 static_lib = static_library(lib_name,
150 include_directories: includes,
151 dependencies: static_deps,
155 # now build the shared driver
156 version_map = '@0@/@1@/@2@_version.map'.format(
157 meson.current_source_dir(),
159 implib = dir_name + '.dll.a'
161 def_file = custom_target(lib_name + '_def',
162 command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'],
164 output: '@0@_exports.def'.format(lib_name))
165 lk_deps = [version_map, def_file]
167 lk_args = ['-Wl,/def:' + def_file.full_path(),
168 '-Wl,/implib:lib\\' + implib]
170 lk_args = ['-Wl,--version-script=' + version_map]
171 # on unix systems check the output of the
172 # experimental syms script, using it as a
173 # dependency of the .so build
174 lk_deps += custom_target(lib_name + '.exp_chk',
175 command: [check_experimental_syms,
176 version_map, '@INPUT@'],
179 output: lib_name + '.exp_chk')
182 shared_lib = shared_library(lib_name,
185 include_directories: includes,
186 dependencies: shared_deps,
189 link_depends: lk_deps,
190 version: lib_version,
191 soversion: so_version,
193 install_dir: driver_install_path)
195 # create a dependency object and add it to the global dictionary so
196 # testpmd or other built-in apps can find it if necessary
197 shared_dep = declare_dependency(link_with: shared_lib,
198 include_directories: includes,
199 dependencies: shared_deps)
200 static_dep = declare_dependency(link_with: static_lib,
201 include_directories: includes,
202 dependencies: static_deps)
204 dpdk_drivers += static_lib
206 set_variable('shared_@0@'.format(lib_name), shared_dep)
207 set_variable('static_@0@'.format(lib_name), static_dep)
208 dependency_name = ''.join(lib_name.split('rte_'))
209 message('drivers/@0@: Defining dependency "@1@"'.format(
210 drv_path, dependency_name))
214 set_variable(class + '_drivers', class_drivers)