1# SPDX-License-Identifier: BSD-3-Clause 2# Copyright(c) 2017-2019 Intel Corporation 3 4# Defines the order of dependencies evaluation 5subdirs = [ 6 'common', 7 'bus', 8 'common/cnxk', # depends on bus. 9 'common/mlx5', # depends on bus. 10 'common/qat', # depends on bus. 11 'common/sfc_efx', # depends on bus. 12 'mempool', # depends on common and bus. 13 'dma', # depends on common and bus. 14 'net', # depends on common, bus, mempool 15 'raw', # depends on common, bus, dma and net. 16 'crypto', # depends on common, bus and mempool (net in future). 17 'compress', # depends on common, bus, mempool. 18 'regex', # depends on common, bus, regexdev. 19 'vdpa', # depends on common, bus and mempool. 20 'event', # depends on common, bus, mempool and net. 21 'baseband', # depends on common and bus. 22 'gpu', # depends on common and bus. 23] 24 25if meson.is_cross_build() 26 disable_drivers += ',' + meson.get_cross_property('disable_drivers', '') 27 enable_drivers += ',' + meson.get_cross_property('enable_drivers', '') 28endif 29 30# add cmdline disabled drivers and meson disabled drivers together 31disable_drivers += ',' + get_option('disable_drivers') 32disable_drivers = run_command(list_dir_globs, disable_drivers, check: true).stdout().split() 33 34# add cmdline enabled drivers and meson enabled drivers together 35enable_drivers = ',' + get_option('enable_drivers') 36enable_drivers = run_command(list_dir_globs, enable_drivers, check: true).stdout().split() 37if enable_drivers.length() == 0 38 enable_drivers = run_command(list_dir_globs, '*/*', check: true).stdout().split() 39endif 40 41# these drivers must always be enabled, otherwise the build breaks 42always_enable = ['bus/pci', 'bus/vdev'] 43# we always need a mempool driver, and ring is default, so make it mandatory 44always_enable += ['mempool/ring'] 45enable_drivers += always_enable 46 47default_cflags = machine_args 48default_cflags += ['-DALLOW_EXPERIMENTAL_API'] 49default_cflags += ['-DALLOW_INTERNAL_API'] 50 51if cc.has_argument('-Wno-format-truncation') 52 default_cflags += '-Wno-format-truncation' 53endif 54 55foreach subpath:subdirs 56 drivers = [] 57 std_deps = [] 58 log_prefix = '' 59 60 # subpath can be either "class" or "class/driver" 61 if subpath.contains('/') 62 driver_path = subpath.split('/') 63 class = driver_path[0] 64 drivers += driver_path[1] 65 else 66 class = subpath 67 subdir(class) 68 endif 69 70 # save class name on first occurrence 71 if not dpdk_driver_classes.contains(class) 72 dpdk_driver_classes += class 73 endif 74 # get already enabled drivers of the same class 75 enabled_drivers = get_variable(class + '_drivers', []) 76 77 # default log prefix can be defined per class 78 if log_prefix == '' 79 # default log name is pmd.class.driver 80 log_prefix = 'pmd.' + class 81 endif 82 83 foreach drv:drivers 84 drv_path = join_paths(class, drv) 85 86 # set up empty variables used for build 87 build = true # set to false to disable, e.g. missing deps 88 reason = '<unknown reason>' # set if build == false to explain 89 name = drv 90 sources = [] 91 headers = [] 92 objs = [] 93 cflags = default_cflags 94 includes = [include_directories(drv_path)] 95 # set up internal deps. Drivers can append/override as necessary 96 deps = std_deps 97 # ext_deps: Stores external library dependency got 98 # using dependency() (preferred) or find_library(). 99 # For the find_library() case (but not with dependency()) we also 100 # need to specify the "-l" flags in pkgconfig_extra_libs variable 101 # too, so that it can be reflected in the pkgconfig output for 102 # static builds. 103 ext_deps = [] 104 pkgconfig_extra_libs = [] 105 testpmd_sources = [] 106 107 if not enable_drivers.contains(drv_path) 108 build = false 109 reason = 'not in enabled drivers build config' 110 elif disable_drivers.contains(drv_path) 111 if always_enable.contains(drv_path) 112 message('Driver @0@ cannot be disabled, not disabling.'.format(drv_path)) 113 else 114 build = false 115 reason = 'explicitly disabled via build config' 116 endif 117 endif 118 119 if build 120 # pull in driver directory which should update all the local variables 121 subdir(drv_path) 122 123 # get dependency objs from strings 124 shared_deps = ext_deps 125 static_deps = ext_deps 126 foreach d:deps 127 if not build 128 break 129 endif 130 if not is_variable('shared_rte_' + d) 131 build = false 132 reason = 'missing internal dependency, "@0@"'.format(d) 133 message('Disabling @1@ [@2@]: missing internal dependency "@0@"' 134 .format(d, name, 'drivers/' + drv_path)) 135 else 136 shared_deps += [get_variable('shared_rte_' + d)] 137 static_deps += [get_variable('static_rte_' + d)] 138 endif 139 endforeach 140 endif 141 142 if not build 143 # some driver directories are placeholders which 144 # are never built, so we allow suppression of the 145 # component disable printout in those cases 146 if reason != '' 147 dpdk_drvs_disabled += drv_path 148 set_variable(drv_path.underscorify() + '_disable_reason', reason) 149 endif 150 continue 151 endif 152 153 enabled_drivers += name 154 lib_name = '_'.join(['rte', class, name]) 155 cflags += '-DRTE_LOG_DEFAULT_LOGTYPE=' + '.'.join([log_prefix, name]) 156 dpdk_conf.set(lib_name.to_upper(), 1) 157 158 dpdk_extra_ldflags += pkgconfig_extra_libs 159 160 install_headers(headers) 161 162 # generate pmdinfo sources by building a temporary 163 # lib and then running pmdinfogen on the contents of 164 # that lib. The final lib reuses the object files and 165 # adds in the new source file. 166 out_filename = lib_name + '.pmd.c' 167 tmp_lib = static_library('tmp_' + lib_name, sources, 168 include_directories: includes, 169 dependencies: static_deps, 170 c_args: cflags) 171 objs += tmp_lib.extract_all_objects(recursive: true) 172 sources = custom_target(out_filename, 173 command: [pmdinfo, tmp_lib.full_path(), '@OUTPUT@', pmdinfogen], 174 output: out_filename, 175 depends: [tmp_lib]) 176 177 # now build the static driver 178 static_lib = static_library(lib_name, 179 sources, 180 objects: objs, 181 include_directories: includes, 182 dependencies: static_deps, 183 c_args: cflags, 184 install: true) 185 186 # now build the shared driver 187 version_map = '@0@/@1@/version.map'.format(meson.current_source_dir(), drv_path) 188 implib = 'lib' + lib_name + '.dll.a' 189 190 def_file = custom_target(lib_name + '_def', 191 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 192 input: version_map, 193 output: '@0@_exports.def'.format(lib_name)) 194 195 mingw_map = custom_target(lib_name + '_mingw', 196 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 197 input: version_map, 198 output: '@0@_mingw.map'.format(lib_name)) 199 200 lk_deps = [version_map, def_file, mingw_map] 201 if is_windows 202 if is_ms_linker 203 lk_args = ['-Wl,/def:' + def_file.full_path()] 204 if meson.version().version_compare('<0.54.0') 205 lk_args += ['-Wl,/implib:drivers\\' + implib] 206 endif 207 else 208 lk_args = ['-Wl,--version-script=' + mingw_map.full_path()] 209 endif 210 else 211 lk_args = ['-Wl,--version-script=' + version_map] 212 if developer_mode 213 # on unix systems check the output of the 214 # check-symbols.sh script, using it as a 215 # dependency of the .so build 216 lk_deps += custom_target(lib_name + '.sym_chk', 217 command: [check_symbols, version_map, '@INPUT@'], 218 capture: true, 219 input: static_lib, 220 output: lib_name + '.sym_chk') 221 endif 222 endif 223 224 shared_lib = shared_library(lib_name, sources, 225 objects: objs, 226 include_directories: includes, 227 dependencies: shared_deps, 228 c_args: cflags, 229 link_args: lk_args, 230 link_depends: lk_deps, 231 version: abi_version, 232 soversion: so_version, 233 install: true, 234 install_dir: driver_install_path) 235 236 # create a dependency object and add it to the global dictionary so 237 # testpmd or other built-in apps can find it if necessary 238 shared_dep = declare_dependency(link_with: shared_lib, 239 include_directories: includes, 240 dependencies: shared_deps) 241 static_dep = declare_dependency( 242 include_directories: includes, 243 dependencies: static_deps) 244 245 dpdk_drivers += static_lib 246 247 set_variable('shared_@0@'.format(lib_name), shared_dep) 248 set_variable('static_@0@'.format(lib_name), static_dep) 249 # for drivers, we only need to add dependency objects for static libs, 250 # shared lib drivers are not linked in 251 dpdk_static_lib_deps += static_dep 252 253 dependency_name = ''.join(lib_name.split('rte_')) 254 if testpmd_sources.length() != 0 255 testpmd_drivers_sources += testpmd_sources 256 testpmd_drivers_deps += dependency_name 257 endif 258 if developer_mode 259 message('drivers/@0@: Defining dependency "@1@"'.format( 260 drv_path, dependency_name)) 261 endif 262 endforeach 263 264 set_variable(class + '_drivers', enabled_drivers) 265endforeach 266