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