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