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