1# SPDX-License-Identifier: BSD-3-Clause 2# Copyright(c) 2017-2019 Intel Corporation 3 4if is_windows 5 subdir_done() 6endif 7 8# Defines the order in which the drivers are buit. 9dpdk_driver_classes = ['common', 10 'bus', 11 'mempool', # depends on common and bus. 12 'raw', # depends on common and bus. 13 'net', # depends on common, bus, mempool and raw. 14 'crypto', # depends on common, bus and mempool (net in future). 15 'compress', # depends on common, bus, mempool. 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 20disabled_drivers = get_option('disable_drivers').split(',') 21 22default_cflags = machine_args 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 allow_experimental_apis = false 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 # pull in driver directory which should assign to each of the above 62 subdir(drv_path) 63 64 # skip disabled drivers. For meson 0.49 change this to use 65 # "in" keyword 66 foreach disable_path: disabled_drivers 67 if drv_path == disable_path 68 build = false 69 reason = 'Explicitly disabled via build config' 70 endif 71 endforeach 72 if build 73 # get dependency objs from strings 74 shared_deps = ext_deps 75 static_deps = ext_deps 76 foreach d:deps 77 if not is_variable('shared_rte_' + d) 78 build = false 79 reason = 'Missing internal dependency, "@0@"'.format(d) 80 message('Disabling @1@ [@2@]: missing internal dependency "@0@"' 81 .format(d, name, 'drivers/' + drv_path)) 82 else 83 shared_deps += [get_variable('shared_rte_' + d)] 84 static_deps += [get_variable('static_rte_' + d)] 85 endif 86 endforeach 87 endif 88 89 if not build 90 # some driver directories are placeholders which 91 # are never built, so we allow suppression of the 92 # component disable printout in those cases 93 if reason != '' 94 dpdk_drvs_disabled += drv_path 95 set_variable(drv_path.underscorify() + 96 '_disable_reason', reason) 97 endif 98 else 99 class_drivers += name 100 101 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1) 102 lib_name = driver_name_fmt.format(name) 103 104 if allow_experimental_apis 105 cflags += '-DALLOW_EXPERIMENTAL_API' 106 endif 107 108 dpdk_extra_ldflags += pkgconfig_extra_libs 109 110 # generate pmdinfo sources by building a temporary 111 # lib and then running pmdinfogen on the contents of 112 # that lib. The final lib reuses the object files and 113 # adds in the new source file. 114 out_filename = lib_name + '.pmd.c' 115 tmp_lib = static_library('tmp_' + lib_name, 116 sources, 117 include_directories: includes, 118 dependencies: static_deps, 119 c_args: cflags) 120 objs += tmp_lib.extract_all_objects() 121 sources = custom_target(out_filename, 122 command: [pmdinfo, tmp_lib.full_path(), 123 '@OUTPUT@', pmdinfogen], 124 output: out_filename, 125 depends: [pmdinfogen, tmp_lib]) 126 127 version_map = '@0@/@1@/@2@_version.map'.format( 128 meson.current_source_dir(), 129 drv_path, lib_name) 130 131 is_experimental = run_command(is_experimental_cmd, 132 files(version_map)).returncode() 133 134 if is_experimental != 0 135 lib_version = experimental_abi_version 136 so_version = experimental_so_version 137 else 138 lib_version = abi_version 139 so_version = stable_so_version 140 endif 141 142 # now build the static driver 143 static_lib = static_library(lib_name, 144 sources, 145 objects: objs, 146 include_directories: includes, 147 dependencies: static_deps, 148 c_args: cflags, 149 install: true) 150 151 # now build the shared driver 152 version_map = '@0@/@1@/@2@_version.map'.format( 153 meson.current_source_dir(), 154 drv_path, lib_name) 155 implib = dir_name + '.dll.a' 156 157 def_file = custom_target(lib_name + '_def', 158 command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'], 159 input: version_map, 160 output: '@0@_exports.def'.format(lib_name)) 161 lk_deps = [version_map, def_file] 162 if is_windows 163 lk_args = ['-Wl,/def:' + def_file.full_path(), 164 '-Wl,/implib:lib\\' + implib] 165 else 166 lk_args = ['-Wl,--version-script=' + version_map] 167 # on unix systems check the output of the 168 # experimental syms script, using it as a 169 # dependency of the .so build 170 lk_deps += custom_target(lib_name + '.exp_chk', 171 command: [check_experimental_syms, 172 version_map, '@INPUT@'], 173 capture: true, 174 input: static_lib, 175 output: lib_name + '.exp_chk') 176 endif 177 178 shared_lib = shared_library(lib_name, 179 sources, 180 objects: objs, 181 include_directories: includes, 182 dependencies: shared_deps, 183 c_args: cflags, 184 link_args: lk_args, 185 link_depends: lk_deps, 186 version: lib_version, 187 soversion: so_version, 188 install: true, 189 install_dir: driver_install_path) 190 191 # create a dependency object and add it to the global dictionary so 192 # testpmd or other built-in apps can find it if necessary 193 shared_dep = declare_dependency(link_with: shared_lib, 194 include_directories: includes, 195 dependencies: shared_deps) 196 static_dep = declare_dependency(link_with: static_lib, 197 include_directories: includes, 198 dependencies: static_deps) 199 200 dpdk_drivers += static_lib 201 202 set_variable('shared_@0@'.format(lib_name), shared_dep) 203 set_variable('static_@0@'.format(lib_name), static_dep) 204 dependency_name = ''.join(lib_name.split('rte_')) 205 message('drivers/@0@: Defining dependency "@1@"'.format( 206 drv_path, dependency_name)) 207 endif # build 208 endforeach 209 210 set_variable(class + '_drivers', class_drivers) 211endforeach 212