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