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