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 and mempool. 13 'crypto', # depends on common, bus and mempool (net in future). 14 'compress', # depends on common, bus, mempool. 15 'event', # depends on common, bus, mempool and net. 16 'baseband', # depends on common and bus. 17 'raw'] # depends on common, bus, mempool, net and event. 18 19default_cflags = machine_args 20if cc.has_argument('-Wno-format-truncation') 21 default_cflags += '-Wno-format-truncation' 22endif 23 24foreach class:dpdk_driver_classes 25 drivers = [] 26 std_deps = [] 27 config_flag_fmt = '' # format string used to set the value in dpdk_conf 28 driver_name_fmt = '' # format string for driver name, used to name 29 # the library, the dependency and to find the 30 # version file for linking 31 32 subdir(class) 33 class_drivers = [] 34 35 foreach drv:drivers 36 drv_path = join_paths(class, drv) 37 38 # set up empty variables used for build 39 build = true # set to false to disable, e.g. missing deps 40 reason = '<unknown reason>' # set if build == false to explain 41 name = drv 42 version = 1 43 allow_experimental_apis = false 44 sources = [] 45 objs = [] 46 cflags = default_cflags 47 includes = [include_directories(drv_path)] 48 # set up internal deps. Drivers can append/override as necessary 49 deps = std_deps 50 # ext_deps: Stores external library dependency got 51 # using dependency() (preferred) or find_library(). 52 # For the find_library() case (but not with dependency()) we also 53 # need to specify the "-l" flags in pkgconfig_extra_libs variable 54 # too, so that it can be reflected in the pkgconfig output for 55 # static builds. 56 ext_deps = [] 57 pkgconfig_extra_libs = [] 58 59 # pull in driver directory which should assign to each of the above 60 subdir(drv_path) 61 62 if not build 63 # some driver directories are placeholders which 64 # are never built, so we allow suppression of the 65 # component disable printout in those cases 66 if reason != '' 67 dpdk_drvs_disabled += drv_path 68 set_variable(drv_path.underscorify() + 69 '_disable_reason', reason) 70 endif 71 else 72 class_drivers += name 73 74 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1) 75 lib_name = driver_name_fmt.format(name) 76 77 if allow_experimental_apis 78 cflags += '-DALLOW_EXPERIMENTAL_API' 79 endif 80 81 # get dependency objs from strings 82 shared_objs = [] 83 static_objs = [] 84 foreach d:deps 85 if not is_variable('shared_rte_' + d) 86 error('Missing dependency ' + d + 87 ' for driver ' + lib_name) 88 endif 89 shared_objs += [get_variable('shared_rte_' + d)] 90 static_objs += [get_variable('static_rte_' + d)] 91 endforeach 92 shared_objs += ext_deps 93 static_objs += ext_deps 94 dpdk_extra_ldflags += pkgconfig_extra_libs 95 96 # generate pmdinfo sources by building a temporary 97 # lib and then running pmdinfogen on the contents of 98 # that lib. The final lib reuses the object files and 99 # adds in the new source file. 100 out_filename = lib_name + '.pmd.c' 101 tmp_lib = static_library('tmp_' + lib_name, 102 sources, 103 include_directories: includes, 104 dependencies: static_objs, 105 c_args: cflags) 106 objs += tmp_lib.extract_all_objects() 107 sources = custom_target(out_filename, 108 command: [pmdinfo, tmp_lib.full_path(), 109 '@OUTPUT@', pmdinfogen], 110 output: out_filename, 111 depends: [pmdinfogen, tmp_lib]) 112 113 if get_option('per_library_versions') 114 lib_version = '@0@.1'.format(version) 115 so_version = '@0@'.format(version) 116 else 117 lib_version = major_version 118 so_version = major_version 119 endif 120 121 # now build the static driver 122 static_lib = static_library(lib_name, 123 sources, 124 objects: objs, 125 include_directories: includes, 126 dependencies: static_objs, 127 c_args: cflags, 128 install: true) 129 130 # now build the shared driver 131 version_map = '@0@/@1@/@2@_version.map'.format( 132 meson.current_source_dir(), 133 drv_path, lib_name) 134 shared_lib = shared_library(lib_name, 135 sources, 136 objects: objs, 137 include_directories: includes, 138 dependencies: shared_objs, 139 c_args: cflags, 140 link_args: '-Wl,--version-script=' + version_map, 141 link_depends: version_map, 142 version: lib_version, 143 soversion: so_version, 144 install: true, 145 install_dir: driver_install_path) 146 147 # create a dependency object and add it to the global dictionary so 148 # testpmd or other built-in apps can find it if necessary 149 shared_dep = declare_dependency(link_with: shared_lib, 150 include_directories: includes, 151 dependencies: shared_objs) 152 static_dep = declare_dependency(link_with: static_lib, 153 include_directories: includes, 154 dependencies: static_objs) 155 156 dpdk_drivers += static_lib 157 158 set_variable('shared_@0@'.format(lib_name), shared_dep) 159 set_variable('static_@0@'.format(lib_name), static_dep) 160 endif # build 161 endforeach 162 163 set_variable(class + '_drivers', class_drivers) 164endforeach 165