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 '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 'event', # depends on common, bus, mempool and net. 17 'baseband'] # depends on common and bus. 18 19disabled_drivers = get_option('disable_drivers').split(',') 20 21default_cflags = machine_args 22if cc.has_argument('-Wno-format-truncation') 23 default_cflags += '-Wno-format-truncation' 24endif 25 26foreach class:dpdk_driver_classes 27 drivers = [] 28 std_deps = [] 29 config_flag_fmt = '' # format string used to set the value in dpdk_conf 30 driver_name_fmt = '' # format string for driver name, used to name 31 # the library, the dependency and to find the 32 # version file for linking 33 34 subdir(class) 35 class_drivers = [] 36 37 foreach drv:drivers 38 drv_path = join_paths(class, drv) 39 40 # set up empty variables used for build 41 build = true # set to false to disable, e.g. missing deps 42 reason = '<unknown reason>' # set if build == false to explain 43 name = drv 44 allow_experimental_apis = false 45 sources = [] 46 objs = [] 47 cflags = default_cflags 48 includes = [include_directories(drv_path)] 49 # set up internal deps. Drivers can append/override as necessary 50 deps = std_deps 51 # ext_deps: Stores external library dependency got 52 # using dependency() (preferred) or find_library(). 53 # For the find_library() case (but not with dependency()) we also 54 # need to specify the "-l" flags in pkgconfig_extra_libs variable 55 # too, so that it can be reflected in the pkgconfig output for 56 # static builds. 57 ext_deps = [] 58 pkgconfig_extra_libs = [] 59 60 # pull in driver directory which should assign to each of the above 61 subdir(drv_path) 62 63 # skip disabled drivers. For meson 0.49 change this to use 64 # "in" keyword 65 foreach disable_path: disabled_drivers 66 if drv_path == disable_path 67 build = false 68 reason = 'Explicitly disabled via build config' 69 endif 70 endforeach 71 if build 72 # get dependency objs from strings 73 shared_deps = ext_deps 74 static_deps = ext_deps 75 foreach d:deps 76 if not is_variable('shared_rte_' + d) 77 build = false 78 reason = 'Missing internal dependency, "@0@"'.format(d) 79 message('Disabling @1@ [@2@]: missing internal dependency "@0@"' 80 .format(d, name, 'drivers/' + drv_path)) 81 else 82 shared_deps += [get_variable('shared_rte_' + d)] 83 static_deps += [get_variable('static_rte_' + d)] 84 endif 85 endforeach 86 endif 87 88 if not build 89 # some driver directories are placeholders which 90 # are never built, so we allow suppression of the 91 # component disable printout in those cases 92 if reason != '' 93 dpdk_drvs_disabled += drv_path 94 set_variable(drv_path.underscorify() + 95 '_disable_reason', reason) 96 endif 97 else 98 class_drivers += name 99 100 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1) 101 lib_name = driver_name_fmt.format(name) 102 103 if allow_experimental_apis 104 cflags += '-DALLOW_EXPERIMENTAL_API' 105 endif 106 107 dpdk_extra_ldflags += pkgconfig_extra_libs 108 109 # generate pmdinfo sources by building a temporary 110 # lib and then running pmdinfogen on the contents of 111 # that lib. The final lib reuses the object files and 112 # adds in the new source file. 113 out_filename = lib_name + '.pmd.c' 114 tmp_lib = static_library('tmp_' + lib_name, 115 sources, 116 include_directories: includes, 117 dependencies: static_deps, 118 c_args: cflags) 119 objs += tmp_lib.extract_all_objects() 120 sources = custom_target(out_filename, 121 command: [pmdinfo, tmp_lib.full_path(), 122 '@OUTPUT@', pmdinfogen], 123 output: out_filename, 124 depends: [pmdinfogen, tmp_lib]) 125 126 version_map = '@0@/@1@/@2@_version.map'.format( 127 meson.current_source_dir(), 128 drv_path, lib_name) 129 130 is_experimental = run_command(is_experimental_cmd, 131 files(version_map)).returncode() 132 133 if is_experimental != 0 134 lib_version = experimental_abi_version 135 so_version = experimental_abi_version 136 else 137 lib_version = abi_version 138 so_version = abi_version 139 endif 140 141 # now build the static driver 142 static_lib = static_library(lib_name, 143 sources, 144 objects: objs, 145 include_directories: includes, 146 dependencies: static_deps, 147 c_args: cflags, 148 install: true) 149 150 # now build the shared driver 151 version_map = '@0@/@1@/@2@_version.map'.format( 152 meson.current_source_dir(), 153 drv_path, lib_name) 154 implib = dir_name + '.dll.a' 155 156 def_file = custom_target(lib_name + '_def', 157 command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'], 158 input: version_map, 159 output: '@0@_exports.def'.format(lib_name)) 160 lk_deps = [version_map, def_file] 161 if is_windows 162 lk_args = ['-Wl,/def:' + def_file.full_path(), 163 '-Wl,/implib:lib\\' + implib] 164 else 165 lk_args = ['-Wl,--version-script=' + version_map] 166 # on unix systems check the output of the 167 # experimental syms script, using it as a 168 # dependency of the .so build 169 lk_deps += custom_target(lib_name + '.exp_chk', 170 command: [check_experimental_syms, 171 version_map, '@INPUT@'], 172 capture: true, 173 input: static_lib, 174 output: lib_name + '.exp_chk') 175 endif 176 177 shared_lib = shared_library(lib_name, 178 sources, 179 objects: objs, 180 include_directories: includes, 181 dependencies: shared_deps, 182 c_args: cflags, 183 link_args: lk_args, 184 link_depends: lk_deps, 185 version: lib_version, 186 soversion: so_version, 187 install: true, 188 install_dir: driver_install_path) 189 190 # create a dependency object and add it to the global dictionary so 191 # testpmd or other built-in apps can find it if necessary 192 shared_dep = declare_dependency(link_with: shared_lib, 193 include_directories: includes, 194 dependencies: shared_deps) 195 static_dep = declare_dependency(link_with: static_lib, 196 include_directories: includes, 197 dependencies: static_deps) 198 199 dpdk_drivers += static_lib 200 201 set_variable('shared_@0@'.format(lib_name), shared_dep) 202 set_variable('static_@0@'.format(lib_name), static_dep) 203 dependency_name = ''.join(lib_name.split('rte_')) 204 message('drivers/@0@: Defining dependency "@1@"'.format( 205 drv_path, dependency_name)) 206 endif # build 207 endforeach 208 209 set_variable(class + '_drivers', class_drivers) 210endforeach 211