1# SPDX-License-Identifier: BSD-3-Clause 2# Copyright(c) 2017 Intel Corporation 3 4# Defines the order in which the drivers are buit. 5driver_classes = ['common', 6 'bus', 7 'mempool', # depends on common and bus. 8 'net', # depends on common, bus and mempool. 9 'crypto', # depends on common, bus and mempool (net in future). 10 'compress', # depends on common, bus, mempool. 11 'event', # depends on common, bus, mempool and net. 12 'baseband', # depends on common and bus. 13 'raw'] # depends on common, bus, mempool, net and event. 14 15default_cflags = machine_args 16if cc.has_argument('-Wno-format-truncation') 17 default_cflags += '-Wno-format-truncation' 18endif 19 20# specify -D_GNU_SOURCE unconditionally 21default_cflags += '-D_GNU_SOURCE' 22 23foreach class:driver_classes 24 drivers = [] 25 std_deps = [] 26 config_flag_fmt = '' # format string used to set the value in dpdk_conf 27 driver_name_fmt = '' # format string for driver name, used to name 28 # the library, the dependency and to find the 29 # version file for linking 30 31 subdir(class) 32 class_drivers = [] 33 34 foreach drv:drivers 35 drv_path = join_paths(class, drv) 36 37 # set up empty variables used for build 38 build = true # set to false to disable, e.g. missing deps 39 name = drv 40 version = 1 41 allow_experimental_apis = false 42 sources = [] 43 objs = [] 44 cflags = default_cflags 45 includes = [include_directories(drv_path)] 46 # set up internal deps. Drivers can append/override as necessary 47 deps = std_deps 48 # ext_deps: Stores external library dependency got 49 # using dependency() or cc.find_library(). For most cases, we 50 # probably also need to specify the "-l" flags in 51 # pkgconfig_extra_libs variable too, so that it can be reflected 52 # in the pkgconfig output for static builds 53 ext_deps = [] 54 pkgconfig_extra_libs = [] 55 56 # pull in driver directory which should assign to each of the above 57 subdir(drv_path) 58 59 if build 60 class_drivers += name 61 62 dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1) 63 lib_name = driver_name_fmt.format(name) 64 65 if allow_experimental_apis 66 cflags += '-DALLOW_EXPERIMENTAL_API' 67 endif 68 69 # get dependency objs from strings 70 shared_objs = [] 71 static_objs = [] 72 foreach d:deps 73 if not is_variable('shared_rte_' + d) 74 error('Missing dependency ' + d + 75 ' for driver ' + lib_name) 76 endif 77 shared_objs += [get_variable('shared_rte_' + d)] 78 static_objs += [get_variable('static_rte_' + d)] 79 endforeach 80 shared_objs += ext_deps 81 static_objs += ext_deps 82 dpdk_extra_ldflags += pkgconfig_extra_libs 83 84 # generate pmdinfo sources by building a temporary 85 # lib and then running pmdinfogen on the contents of 86 # that lib. The final lib reuses the object files and 87 # adds in the new source file. 88 out_filename = lib_name + '.pmd.c' 89 tmp_lib = static_library('tmp_' + lib_name, 90 sources, 91 include_directories: includes, 92 dependencies: static_objs, 93 c_args: cflags) 94 objs += tmp_lib.extract_all_objects() 95 sources = custom_target(out_filename, 96 command: [pmdinfo, tmp_lib.full_path(), 97 '@OUTPUT@', pmdinfogen], 98 output: out_filename, 99 depends: [pmdinfogen, tmp_lib]) 100 101 if get_option('per_library_versions') 102 lib_version = '@[email protected]'.format(version) 103 so_version = '@0@'.format(version) 104 else 105 lib_version = major_version 106 so_version = major_version 107 endif 108 109 # now build the static driver 110 static_lib = static_library(lib_name, 111 sources, 112 objects: objs, 113 include_directories: includes, 114 dependencies: static_objs, 115 c_args: cflags, 116 install: true) 117 118 # now build the shared driver 119 version_map = '@0@/@1@/@2@_version.map'.format( 120 meson.current_source_dir(), 121 drv_path, lib_name) 122 shared_lib = shared_library(lib_name, 123 sources, 124 objects: objs, 125 include_directories: includes, 126 dependencies: shared_objs, 127 c_args: cflags, 128 link_args: '-Wl,--version-script=' + version_map, 129 link_depends: version_map, 130 version: lib_version, 131 soversion: so_version, 132 install: true, 133 install_dir: driver_install_path) 134 135 # create a dependency object and add it to the global dictionary so 136 # testpmd or other built-in apps can find it if necessary 137 shared_dep = declare_dependency(link_with: shared_lib, 138 include_directories: includes, 139 dependencies: shared_objs) 140 static_dep = declare_dependency(link_with: static_lib, 141 include_directories: includes, 142 dependencies: static_objs) 143 144 dpdk_drivers += static_lib 145 146 set_variable('shared_@0@'.format(lib_name), shared_dep) 147 set_variable('static_@0@'.format(lib_name), static_dep) 148 endif # build 149 endforeach 150 151 if meson.version().version_compare('>=0.47') 152 # prior to 0.47, set_variable can't take array params 153 set_variable(class + '_drivers', class_drivers) 154 endif 155endforeach 156