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