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 24# specify -D_GNU_SOURCE unconditionally 25default_cflags += '-D_GNU_SOURCE' 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 name = drv 44 version = 1 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 if build 65 class_drivers += name 66 67 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1) 68 lib_name = driver_name_fmt.format(name) 69 70 if allow_experimental_apis 71 cflags += '-DALLOW_EXPERIMENTAL_API' 72 endif 73 74 # get dependency objs from strings 75 shared_objs = [] 76 static_objs = [] 77 foreach d:deps 78 if not is_variable('shared_rte_' + d) 79 error('Missing dependency ' + d + 80 ' for driver ' + lib_name) 81 endif 82 shared_objs += [get_variable('shared_rte_' + d)] 83 static_objs += [get_variable('static_rte_' + d)] 84 endforeach 85 shared_objs += ext_deps 86 static_objs += ext_deps 87 dpdk_extra_ldflags += pkgconfig_extra_libs 88 89 # generate pmdinfo sources by building a temporary 90 # lib and then running pmdinfogen on the contents of 91 # that lib. The final lib reuses the object files and 92 # adds in the new source file. 93 out_filename = lib_name + '.pmd.c' 94 tmp_lib = static_library('tmp_' + lib_name, 95 sources, 96 include_directories: includes, 97 dependencies: static_objs, 98 c_args: cflags) 99 objs += tmp_lib.extract_all_objects() 100 sources = custom_target(out_filename, 101 command: [pmdinfo, tmp_lib.full_path(), 102 '@OUTPUT@', pmdinfogen], 103 output: out_filename, 104 depends: [pmdinfogen, tmp_lib]) 105 106 if get_option('per_library_versions') 107 lib_version = '@[email protected]'.format(version) 108 so_version = '@0@'.format(version) 109 else 110 lib_version = major_version 111 so_version = major_version 112 endif 113 114 # now build the static driver 115 static_lib = static_library(lib_name, 116 sources, 117 objects: objs, 118 include_directories: includes, 119 dependencies: static_objs, 120 c_args: cflags, 121 install: true) 122 123 # now build the shared driver 124 version_map = '@0@/@1@/@2@_version.map'.format( 125 meson.current_source_dir(), 126 drv_path, lib_name) 127 shared_lib = shared_library(lib_name, 128 sources, 129 objects: objs, 130 include_directories: includes, 131 dependencies: shared_objs, 132 c_args: cflags, 133 link_args: '-Wl,--version-script=' + version_map, 134 link_depends: version_map, 135 version: lib_version, 136 soversion: so_version, 137 install: true, 138 install_dir: driver_install_path) 139 140 # create a dependency object and add it to the global dictionary so 141 # testpmd or other built-in apps can find it if necessary 142 shared_dep = declare_dependency(link_with: shared_lib, 143 include_directories: includes, 144 dependencies: shared_objs) 145 static_dep = declare_dependency(link_with: static_lib, 146 include_directories: includes, 147 dependencies: static_objs) 148 149 dpdk_drivers += static_lib 150 151 set_variable('shared_@0@'.format(lib_name), shared_dep) 152 set_variable('static_@0@'.format(lib_name), static_dep) 153 endif # build 154 endforeach 155 156 set_variable(class + '_drivers', class_drivers) 157endforeach 158