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 = [] 105 106 if not enable_drivers.contains(drv_path) 107 build = false 108 reason = 'not in enabled drivers build config' 109 elif disable_drivers.contains(drv_path) 110 if always_enable.contains(drv_path) 111 message('Driver @0@ cannot be disabled, not disabling.'.format(drv_path)) 112 else 113 build = false 114 reason = 'explicitly disabled via build config' 115 endif 116 endif 117 118 if build 119 # pull in driver directory which should update all the local variables 120 subdir(drv_path) 121 122 # get dependency objs from strings 123 shared_deps = ext_deps 124 static_deps = ext_deps 125 foreach d:deps 126 if not build 127 break 128 endif 129 if not is_variable('shared_rte_' + d) 130 build = false 131 reason = 'missing internal dependency, "@0@"'.format(d) 132 message('Disabling @1@ [@2@]: missing internal dependency "@0@"' 133 .format(d, name, 'drivers/' + drv_path)) 134 else 135 shared_deps += [get_variable('shared_rte_' + d)] 136 static_deps += [get_variable('static_rte_' + d)] 137 endif 138 endforeach 139 endif 140 141 if not build 142 # some driver directories are placeholders which 143 # are never built, so we allow suppression of the 144 # component disable printout in those cases 145 if reason != '' 146 dpdk_drvs_disabled += drv_path 147 set_variable(drv_path.underscorify() + '_disable_reason', reason) 148 endif 149 continue 150 endif 151 152 enabled_drivers += name 153 lib_name = '_'.join(['rte', class, name]) 154 cflags += '-DRTE_LOG_DEFAULT_LOGTYPE=' + '.'.join([log_prefix, name]) 155 dpdk_conf.set(lib_name.to_upper(), 1) 156 157 dpdk_extra_ldflags += pkgconfig_extra_libs 158 159 install_headers(headers) 160 161 # generate pmdinfo sources by building a temporary 162 # lib and then running pmdinfogen on the contents of 163 # that lib. The final lib reuses the object files and 164 # adds in the new source file. 165 out_filename = lib_name + '.pmd.c' 166 tmp_lib = static_library('tmp_' + lib_name, sources, 167 include_directories: includes, 168 dependencies: static_deps, 169 c_args: cflags) 170 objs += tmp_lib.extract_all_objects(recursive: true) 171 sources = custom_target(out_filename, 172 command: [pmdinfo, tmp_lib.full_path(), '@OUTPUT@', pmdinfogen], 173 output: out_filename, 174 depends: [tmp_lib]) 175 176 # now build the static driver 177 static_lib = static_library(lib_name, 178 sources, 179 objects: objs, 180 include_directories: includes, 181 dependencies: static_deps, 182 c_args: cflags, 183 install: true) 184 185 # now build the shared driver 186 version_map = '@0@/@1@/version.map'.format(meson.current_source_dir(), drv_path) 187 implib = 'lib' + lib_name + '.dll.a' 188 189 def_file = custom_target(lib_name + '_def', 190 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 191 input: version_map, 192 output: '@0@_exports.def'.format(lib_name)) 193 194 mingw_map = custom_target(lib_name + '_mingw', 195 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 196 input: version_map, 197 output: '@0@_mingw.map'.format(lib_name)) 198 199 lk_deps = [version_map, def_file, mingw_map] 200 if is_windows 201 if is_ms_linker 202 lk_args = ['-Wl,/def:' + def_file.full_path()] 203 if meson.version().version_compare('<0.54.0') 204 lk_args += ['-Wl,/implib:drivers\\' + implib] 205 endif 206 else 207 lk_args = ['-Wl,--version-script=' + mingw_map.full_path()] 208 endif 209 else 210 lk_args = ['-Wl,--version-script=' + version_map] 211 if developer_mode 212 # on unix systems check the output of the 213 # check-symbols.sh script, using it as a 214 # dependency of the .so build 215 lk_deps += custom_target(lib_name + '.sym_chk', 216 command: [check_symbols, version_map, '@INPUT@'], 217 capture: true, 218 input: static_lib, 219 output: lib_name + '.sym_chk') 220 endif 221 endif 222 223 shared_lib = shared_library(lib_name, sources, 224 objects: objs, 225 include_directories: includes, 226 dependencies: shared_deps, 227 c_args: cflags, 228 link_args: lk_args, 229 link_depends: lk_deps, 230 version: abi_version, 231 soversion: so_version, 232 install: true, 233 install_dir: driver_install_path) 234 235 # create a dependency object and add it to the global dictionary so 236 # testpmd or other built-in apps can find it if necessary 237 shared_dep = declare_dependency(link_with: shared_lib, 238 include_directories: includes, 239 dependencies: shared_deps) 240 static_dep = declare_dependency( 241 include_directories: includes, 242 dependencies: static_deps) 243 244 dpdk_drivers += static_lib 245 246 set_variable('shared_@0@'.format(lib_name), shared_dep) 247 set_variable('static_@0@'.format(lib_name), static_dep) 248 dependency_name = ''.join(lib_name.split('rte_')) 249 if developer_mode 250 message('drivers/@0@: Defining dependency "@1@"'.format( 251 drv_path, dependency_name)) 252 endif 253 endforeach 254 255 set_variable(class + '_drivers', enabled_drivers) 256endforeach 257