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