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 '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 = run_command(list_dir_globs, get_option('disable_drivers'), 21 ).stdout().split() 22 23default_cflags = machine_args 24if cc.has_argument('-Wno-format-truncation') 25 default_cflags += '-Wno-format-truncation' 26endif 27 28foreach class:dpdk_driver_classes 29 drivers = [] 30 std_deps = [] 31 config_flag_fmt = '' # format string used to set the value in dpdk_conf 32 driver_name_fmt = '' # format string for driver name, used to name 33 # the library, the dependency and to find the 34 # version file for linking 35 36 subdir(class) 37 class_drivers = [] 38 39 foreach drv:drivers 40 drv_path = join_paths(class, drv) 41 42 # set up empty variables used for build 43 build = true # set to false to disable, e.g. missing deps 44 reason = '<unknown reason>' # set if build == false to explain 45 name = drv 46 fmt_name = '' 47 allow_experimental_apis = false 48 sources = [] 49 objs = [] 50 cflags = default_cflags 51 includes = [include_directories(drv_path)] 52 # set up internal deps. Drivers can append/override as necessary 53 deps = std_deps 54 # ext_deps: Stores external library dependency got 55 # using dependency() (preferred) or find_library(). 56 # For the find_library() case (but not with dependency()) we also 57 # need to specify the "-l" flags in pkgconfig_extra_libs variable 58 # too, so that it can be reflected in the pkgconfig output for 59 # static builds. 60 ext_deps = [] 61 pkgconfig_extra_libs = [] 62 63 # pull in driver directory which should assign to each of the above 64 subdir(drv_path) 65 66 # skip disabled drivers. For meson 0.49 change this to use 67 # "in" keyword 68 foreach disable_path: disabled_drivers 69 if drv_path == disable_path 70 build = false 71 reason = 'Explicitly disabled via build config' 72 endif 73 endforeach 74 if build 75 # get dependency objs from strings 76 shared_deps = ext_deps 77 static_deps = ext_deps 78 foreach d:deps 79 if not is_variable('shared_rte_' + d) 80 build = false 81 reason = 'Missing internal dependency, "@0@"'.format(d) 82 message('Disabling @1@ [@2@]: missing internal dependency "@0@"' 83 .format(d, name, 'drivers/' + drv_path)) 84 else 85 shared_deps += [get_variable('shared_rte_' + d)] 86 static_deps += [get_variable('static_rte_' + d)] 87 endif 88 endforeach 89 endif 90 91 if not build 92 # some driver directories are placeholders which 93 # are never built, so we allow suppression of the 94 # component disable printout in those cases 95 if reason != '' 96 dpdk_drvs_disabled += drv_path 97 set_variable(drv_path.underscorify() + 98 '_disable_reason', reason) 99 endif 100 else 101 class_drivers += name 102 103 if fmt_name == '' 104 fmt_name = name 105 endif 106 dpdk_conf.set(config_flag_fmt.format(fmt_name.to_upper()),1) 107 lib_name = driver_name_fmt.format(fmt_name) 108 109 if allow_experimental_apis 110 cflags += '-DALLOW_EXPERIMENTAL_API' 111 endif 112 113 dpdk_extra_ldflags += pkgconfig_extra_libs 114 115 # generate pmdinfo sources by building a temporary 116 # lib and then running pmdinfogen on the contents of 117 # that lib. The final lib reuses the object files and 118 # adds in the new source file. 119 out_filename = lib_name + '.pmd.c' 120 tmp_lib = static_library('tmp_' + lib_name, 121 sources, 122 include_directories: includes, 123 dependencies: static_deps, 124 c_args: cflags) 125 objs += tmp_lib.extract_all_objects() 126 sources = custom_target(out_filename, 127 command: [pmdinfo, tmp_lib.full_path(), 128 '@OUTPUT@', pmdinfogen], 129 output: out_filename, 130 depends: [pmdinfogen, tmp_lib]) 131 132 version_map = '@0@/@1@/@2@_version.map'.format( 133 meson.current_source_dir(), 134 drv_path, lib_name) 135 136 is_experimental = run_command(is_experimental_cmd, 137 files(version_map)).returncode() 138 139 if is_experimental != 0 140 lib_version = experimental_abi_version 141 so_version = experimental_so_version 142 else 143 lib_version = abi_version 144 so_version = stable_so_version 145 endif 146 147 # now build the static driver 148 static_lib = static_library(lib_name, 149 sources, 150 objects: objs, 151 include_directories: includes, 152 dependencies: static_deps, 153 c_args: cflags, 154 install: true) 155 156 # now build the shared driver 157 version_map = '@0@/@1@/@2@_version.map'.format( 158 meson.current_source_dir(), 159 drv_path, lib_name) 160 implib = dir_name + '.dll.a' 161 162 def_file = custom_target(lib_name + '_def', 163 command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'], 164 input: version_map, 165 output: '@0@_exports.def'.format(lib_name)) 166 lk_deps = [version_map, def_file] 167 if is_windows 168 lk_args = ['-Wl,/def:' + def_file.full_path(), 169 '-Wl,/implib:lib\\' + implib] 170 else 171 lk_args = ['-Wl,--version-script=' + version_map] 172 # on unix systems check the output of the 173 # experimental syms script, using it as a 174 # dependency of the .so build 175 lk_deps += custom_target(lib_name + '.exp_chk', 176 command: [check_experimental_syms, 177 version_map, '@INPUT@'], 178 capture: true, 179 input: static_lib, 180 output: lib_name + '.exp_chk') 181 endif 182 183 shared_lib = shared_library(lib_name, 184 sources, 185 objects: objs, 186 include_directories: includes, 187 dependencies: shared_deps, 188 c_args: cflags, 189 link_args: lk_args, 190 link_depends: lk_deps, 191 version: lib_version, 192 soversion: so_version, 193 install: true, 194 install_dir: driver_install_path) 195 196 # create a dependency object and add it to the global dictionary so 197 # testpmd or other built-in apps can find it if necessary 198 shared_dep = declare_dependency(link_with: shared_lib, 199 include_directories: includes, 200 dependencies: shared_deps) 201 static_dep = declare_dependency(link_with: static_lib, 202 include_directories: includes, 203 dependencies: static_deps) 204 205 dpdk_drivers += static_lib 206 207 set_variable('shared_@0@'.format(lib_name), shared_dep) 208 set_variable('static_@0@'.format(lib_name), static_dep) 209 dependency_name = ''.join(lib_name.split('rte_')) 210 message('drivers/@0@: Defining dependency "@1@"'.format( 211 drv_path, dependency_name)) 212 endif # build 213 endforeach 214 215 set_variable(class + '_drivers', class_drivers) 216endforeach 217