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 23disabled_drivers = run_command(list_dir_globs, get_option('disable_drivers'), 24 ).stdout().split() 25 26default_cflags = machine_args 27default_cflags += ['-DALLOW_EXPERIMENTAL_API'] 28default_cflags += ['-DALLOW_INTERNAL_API'] 29 30if cc.has_argument('-Wno-format-truncation') 31 default_cflags += '-Wno-format-truncation' 32endif 33 34foreach subpath:subdirs 35 drivers = [] 36 std_deps = [] 37 38 # subpath can be either "class" or "class/driver" 39 if subpath.contains('/') 40 driver_path = subpath.split('/') 41 class = driver_path[0] 42 drivers += driver_path[1] 43 else 44 class = subpath 45 subdir(class) 46 endif 47 48 # save class name on first occurrence 49 if not dpdk_driver_classes.contains(class) 50 dpdk_driver_classes += class 51 endif 52 # get already enabled drivers of the same class 53 enabled_drivers = get_variable(class + '_drivers', []) 54 55 foreach drv:drivers 56 drv_path = join_paths(class, drv) 57 58 # set up empty variables used for build 59 build = true # set to false to disable, e.g. missing deps 60 reason = '<unknown reason>' # set if build == false to explain 61 name = drv 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 dpdk_extra_ldflags += pkgconfig_extra_libs 118 119 install_headers(headers) 120 121 # generate pmdinfo sources by building a temporary 122 # lib and then running pmdinfogen on the contents of 123 # that lib. The final lib reuses the object files and 124 # adds in the new source file. 125 out_filename = lib_name + '.pmd.c' 126 tmp_lib = static_library('tmp_' + lib_name, 127 sources, 128 include_directories: includes, 129 dependencies: static_deps, 130 c_args: cflags) 131 objs += tmp_lib.extract_all_objects() 132 sources = custom_target(out_filename, 133 command: [pmdinfo, tmp_lib.full_path(), 134 '@OUTPUT@', pmdinfogen], 135 output: out_filename, 136 depends: [tmp_lib]) 137 138 # now build the static driver 139 static_lib = static_library(lib_name, 140 sources, 141 objects: objs, 142 include_directories: includes, 143 dependencies: static_deps, 144 c_args: cflags, 145 install: true) 146 147 # now build the shared driver 148 version_map = '@0@/@1@/version.map'.format( 149 meson.current_source_dir(), 150 drv_path) 151 implib = 'lib' + lib_name + '.dll.a' 152 153 def_file = custom_target(lib_name + '_def', 154 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 155 input: version_map, 156 output: '@0@_exports.def'.format(lib_name)) 157 158 mingw_map = custom_target(lib_name + '_mingw', 159 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 160 input: version_map, 161 output: '@0@_mingw.map'.format(lib_name)) 162 163 lk_deps = [version_map, def_file, mingw_map] 164 if is_windows 165 if is_ms_linker 166 lk_args = ['-Wl,/def:' + def_file.full_path()] 167 if meson.version().version_compare('<0.54.0') 168 lk_args += ['-Wl,/implib:drivers\\' + implib] 169 endif 170 else 171 lk_args = ['-Wl,--version-script=' + mingw_map.full_path()] 172 endif 173 else 174 lk_args = ['-Wl,--version-script=' + version_map] 175 if developer_mode 176 # on unix systems check the output of the 177 # check-symbols.sh script, using it as a 178 # dependency of the .so build 179 lk_deps += custom_target(lib_name + '.sym_chk', 180 command: [check_symbols, 181 version_map, '@INPUT@'], 182 capture: true, 183 input: static_lib, 184 output: lib_name + '.sym_chk') 185 endif 186 endif 187 188 shared_lib = shared_library(lib_name, 189 sources, 190 objects: objs, 191 include_directories: includes, 192 dependencies: shared_deps, 193 c_args: cflags, 194 link_args: lk_args, 195 link_depends: lk_deps, 196 version: abi_version, 197 soversion: so_version, 198 install: true, 199 install_dir: driver_install_path) 200 201 # create a dependency object and add it to the global dictionary so 202 # testpmd or other built-in apps can find it if necessary 203 shared_dep = declare_dependency(link_with: shared_lib, 204 include_directories: includes, 205 dependencies: shared_deps) 206 static_dep = declare_dependency( 207 include_directories: includes, 208 dependencies: static_deps) 209 210 dpdk_drivers += static_lib 211 212 set_variable('shared_@0@'.format(lib_name), shared_dep) 213 set_variable('static_@0@'.format(lib_name), static_dep) 214 dependency_name = ''.join(lib_name.split('rte_')) 215 if developer_mode 216 message('drivers/@0@: Defining dependency "@1@"'.format( 217 drv_path, dependency_name)) 218 endif 219 endif # build 220 endforeach 221 222 set_variable(class + '_drivers', enabled_drivers) 223endforeach 224