1# SPDX-License-Identifier: BSD-3-Clause 2# Copyright(c) 2017-2019 Intel Corporation 3 4# Defines the order in which the drivers are buit. 5dpdk_driver_classes = ['common', 6 'bus', 7 'mempool', # depends on common and bus. 8 'net', # depends on common, bus, mempool 9 'raw', # depends on common, bus and net. 10 'crypto', # depends on common, bus and mempool (net in future). 11 'compress', # depends on common, bus, mempool. 12 'vdpa', # depends on common, bus and mempool. 13 'event', # depends on common, bus, mempool and net. 14 'baseband'] # depends on common and bus. 15 16disabled_drivers = run_command(list_dir_globs, get_option('disable_drivers'), 17 ).stdout().split() 18 19default_cflags = machine_args 20default_cflags += ['-DALLOW_EXPERIMENTAL_API'] 21default_cflags += ['-DALLOW_INTERNAL_API'] 22 23if cc.has_argument('-Wno-format-truncation') 24 default_cflags += '-Wno-format-truncation' 25endif 26 27foreach class:dpdk_driver_classes 28 drivers = [] 29 std_deps = [] 30 config_flag_fmt = '' # format string used to set the value in dpdk_conf 31 driver_name_fmt = '' # format string for driver name, used to name 32 # the library, the dependency and to find the 33 # version file for linking 34 35 subdir(class) 36 class_drivers = [] 37 38 foreach drv:drivers 39 drv_path = join_paths(class, drv) 40 41 # set up empty variables used for build 42 build = true # set to false to disable, e.g. missing deps 43 reason = '<unknown reason>' # set if build == false to explain 44 name = drv 45 fmt_name = '' 46 sources = [] 47 objs = [] 48 cflags = default_cflags 49 includes = [include_directories(drv_path)] 50 # set up internal deps. Drivers can append/override as necessary 51 deps = std_deps 52 # ext_deps: Stores external library dependency got 53 # using dependency() (preferred) or find_library(). 54 # For the find_library() case (but not with dependency()) we also 55 # need to specify the "-l" flags in pkgconfig_extra_libs variable 56 # too, so that it can be reflected in the pkgconfig output for 57 # static builds. 58 ext_deps = [] 59 pkgconfig_extra_libs = [] 60 61 if disabled_drivers.contains(drv_path) 62 build = false 63 reason = 'Explicitly disabled via build config' 64 else 65 # pull in driver directory which should update all the local variables 66 subdir(drv_path) 67 endif 68 69 if build 70 # get dependency objs from strings 71 shared_deps = ext_deps 72 static_deps = ext_deps 73 foreach d:deps 74 if not is_variable('shared_rte_' + d) 75 build = false 76 reason = 'Missing internal dependency, "@0@"'.format(d) 77 message('Disabling @1@ [@2@]: missing internal dependency "@0@"' 78 .format(d, name, 'drivers/' + drv_path)) 79 else 80 shared_deps += [get_variable('shared_rte_' + d)] 81 static_deps += [get_variable('static_rte_' + d)] 82 endif 83 endforeach 84 endif 85 86 if not build 87 # some driver directories are placeholders which 88 # are never built, so we allow suppression of the 89 # component disable printout in those cases 90 if reason != '' 91 dpdk_drvs_disabled += drv_path 92 set_variable(drv_path.underscorify() + 93 '_disable_reason', reason) 94 endif 95 else 96 class_drivers += name 97 98 if fmt_name == '' 99 fmt_name = name 100 endif 101 dpdk_conf.set(config_flag_fmt.format(fmt_name.to_upper()),1) 102 lib_name = driver_name_fmt.format(fmt_name) 103 104 dpdk_extra_ldflags += pkgconfig_extra_libs 105 106 # generate pmdinfo sources by building a temporary 107 # lib and then running pmdinfogen on the contents of 108 # that lib. The final lib reuses the object files and 109 # adds in the new source file. 110 if not is_windows 111 out_filename = lib_name + '.pmd.c' 112 tmp_lib = static_library('tmp_' + lib_name, 113 sources, 114 include_directories: includes, 115 dependencies: static_deps, 116 c_args: cflags) 117 objs += tmp_lib.extract_all_objects() 118 sources = custom_target(out_filename, 119 command: [pmdinfo, tmp_lib.full_path(), 120 '@OUTPUT@', pmdinfogen], 121 output: out_filename, 122 depends: [pmdinfogen, tmp_lib]) 123 endif 124 version_map = '@0@/@1@/@2@_version.map'.format( 125 meson.current_source_dir(), 126 drv_path, lib_name) 127 128 is_stable = run_command(is_stable_cmd, 129 files(version_map)).returncode() == 0 130 131 if is_stable 132 lib_version = abi_version 133 so_version = stable_so_version 134 else 135 lib_version = experimental_abi_version 136 so_version = experimental_so_version 137 endif 138 139 # now build the static driver 140 static_lib = static_library(lib_name, 141 sources, 142 objects: objs, 143 include_directories: includes, 144 dependencies: static_deps, 145 c_args: cflags, 146 install: true) 147 148 # now build the shared driver 149 version_map = '@0@/@1@/@2@_version.map'.format( 150 meson.current_source_dir(), 151 drv_path, lib_name) 152 implib = 'lib' + lib_name + '.dll.a' 153 154 def_file = custom_target(lib_name + '_def', 155 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 156 input: version_map, 157 output: '@0@_exports.def'.format(lib_name)) 158 159 mingw_map = custom_target(lib_name + '_mingw', 160 command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], 161 input: version_map, 162 output: '@0@_mingw.map'.format(lib_name)) 163 164 lk_deps = [version_map, def_file, mingw_map] 165 if is_windows 166 if is_ms_linker 167 lk_args = ['-Wl,/def:' + def_file.full_path(), 168 '-Wl,/implib:drivers\\' + implib] 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: lib_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(link_with: static_lib, 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', class_drivers) 218endforeach 219