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 name = drv 41 version = 1 42 allow_experimental_apis = false 43 sources = [] 44 objs = [] 45 cflags = default_cflags 46 includes = [include_directories(drv_path)] 47 # set up internal deps. Drivers can append/override as necessary 48 deps = std_deps 49 # ext_deps: Stores external library dependency got 50 # using dependency() (preferred) or find_library(). 51 # For the find_library() case (but not with dependency()) we also 52 # need to specify the "-l" flags in pkgconfig_extra_libs variable 53 # too, so that it can be reflected in the pkgconfig output for 54 # static builds. 55 ext_deps = [] 56 pkgconfig_extra_libs = [] 57 58 # pull in driver directory which should assign to each of the above 59 subdir(drv_path) 60 61 if build 62 class_drivers += name 63 64 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1) 65 lib_name = driver_name_fmt.format(name) 66 67 if allow_experimental_apis 68 cflags += '-DALLOW_EXPERIMENTAL_API' 69 endif 70 71 # get dependency objs from strings 72 shared_objs = [] 73 static_objs = [] 74 foreach d:deps 75 if not is_variable('shared_rte_' + d) 76 error('Missing dependency ' + d + 77 ' for driver ' + lib_name) 78 endif 79 shared_objs += [get_variable('shared_rte_' + d)] 80 static_objs += [get_variable('static_rte_' + d)] 81 endforeach 82 shared_objs += ext_deps 83 static_objs += ext_deps 84 dpdk_extra_ldflags += pkgconfig_extra_libs 85 86 # generate pmdinfo sources by building a temporary 87 # lib and then running pmdinfogen on the contents of 88 # that lib. The final lib reuses the object files and 89 # adds in the new source file. 90 out_filename = lib_name + '.pmd.c' 91 tmp_lib = static_library('tmp_' + lib_name, 92 sources, 93 include_directories: includes, 94 dependencies: static_objs, 95 c_args: cflags) 96 objs += tmp_lib.extract_all_objects() 97 sources = custom_target(out_filename, 98 command: [pmdinfo, tmp_lib.full_path(), 99 '@OUTPUT@', pmdinfogen], 100 output: out_filename, 101 depends: [pmdinfogen, tmp_lib]) 102 103 if get_option('per_library_versions') 104 lib_version = '@[email protected]'.format(version) 105 so_version = '@0@'.format(version) 106 else 107 lib_version = major_version 108 so_version = major_version 109 endif 110 111 # now build the static driver 112 static_lib = static_library(lib_name, 113 sources, 114 objects: objs, 115 include_directories: includes, 116 dependencies: static_objs, 117 c_args: cflags, 118 install: true) 119 120 # now build the shared driver 121 version_map = '@0@/@1@/@2@_version.map'.format( 122 meson.current_source_dir(), 123 drv_path, lib_name) 124 shared_lib = shared_library(lib_name, 125 sources, 126 objects: objs, 127 include_directories: includes, 128 dependencies: shared_objs, 129 c_args: cflags, 130 link_args: '-Wl,--version-script=' + version_map, 131 link_depends: version_map, 132 version: lib_version, 133 soversion: so_version, 134 install: true, 135 install_dir: driver_install_path) 136 137 # create a dependency object and add it to the global dictionary so 138 # testpmd or other built-in apps can find it if necessary 139 shared_dep = declare_dependency(link_with: shared_lib, 140 include_directories: includes, 141 dependencies: shared_objs) 142 static_dep = declare_dependency(link_with: static_lib, 143 include_directories: includes, 144 dependencies: static_objs) 145 146 dpdk_drivers += static_lib 147 148 set_variable('shared_@0@'.format(lib_name), shared_dep) 149 set_variable('static_@0@'.format(lib_name), static_dep) 150 endif # build 151 endforeach 152 153 set_variable(class + '_drivers', class_drivers) 154endforeach 155