5ed3766981
For the public APIs of DPDK libraries we run checks for correct use of experimental tags, and also do dynamic generation of the version file to its window's equivalent. Although must drivers don't export APIs, some do, so these checks are relevant and should be copied from lib/meson.build to drivers/meson.build. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Luca Boccassi <bluca@debian.org>
205 lines
6.3 KiB
Meson
205 lines
6.3 KiB
Meson
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2017-2019 Intel Corporation
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if is_windows
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subdir_done()
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endif
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# Defines the order in which the drivers are buit.
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dpdk_driver_classes = ['common',
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'bus',
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'mempool', # depends on common and bus.
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'net', # depends on common, bus and mempool.
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'crypto', # depends on common, bus and mempool (net in future).
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'compress', # depends on common, bus, mempool.
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'event', # depends on common, bus, mempool and net.
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'baseband', # depends on common and bus.
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'raw'] # depends on common, bus, mempool, net and event.
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disabled_drivers = get_option('disable_drivers').split(',')
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default_cflags = machine_args
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if cc.has_argument('-Wno-format-truncation')
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default_cflags += '-Wno-format-truncation'
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endif
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foreach class:dpdk_driver_classes
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drivers = []
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std_deps = []
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config_flag_fmt = '' # format string used to set the value in dpdk_conf
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driver_name_fmt = '' # format string for driver name, used to name
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# the library, the dependency and to find the
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# version file for linking
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subdir(class)
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class_drivers = []
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foreach drv:drivers
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drv_path = join_paths(class, drv)
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# set up empty variables used for build
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build = true # set to false to disable, e.g. missing deps
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reason = '<unknown reason>' # set if build == false to explain
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name = drv
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version = 1
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allow_experimental_apis = false
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sources = []
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objs = []
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cflags = default_cflags
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includes = [include_directories(drv_path)]
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# set up internal deps. Drivers can append/override as necessary
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deps = std_deps
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# ext_deps: Stores external library dependency got
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# using dependency() (preferred) or find_library().
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# For the find_library() case (but not with dependency()) we also
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# need to specify the "-l" flags in pkgconfig_extra_libs variable
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# too, so that it can be reflected in the pkgconfig output for
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# static builds.
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ext_deps = []
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pkgconfig_extra_libs = []
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# pull in driver directory which should assign to each of the above
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subdir(drv_path)
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# skip disabled drivers. For meson 0.49 change this to use
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# "in" keyword
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foreach disable_path: disabled_drivers
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if drv_path == disable_path
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build = false
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reason = 'Explicitly disabled via build config'
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endif
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endforeach
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if build
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# get dependency objs from strings
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shared_deps = ext_deps
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static_deps = ext_deps
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foreach d:deps
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if not is_variable('shared_rte_' + d)
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build = false
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reason = 'Missing internal dependency, "@0@"'.format(d)
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message('Disabling @1@ [@2@]: missing internal dependency "@0@"'
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.format(d, name, 'drivers/' + drv_path))
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else
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shared_deps += [get_variable('shared_rte_' + d)]
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static_deps += [get_variable('static_rte_' + d)]
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endif
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endforeach
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endif
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if not build
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# some driver directories are placeholders which
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# are never built, so we allow suppression of the
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# component disable printout in those cases
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if reason != ''
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dpdk_drvs_disabled += drv_path
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set_variable(drv_path.underscorify() +
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'_disable_reason', reason)
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endif
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else
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class_drivers += name
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dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1)
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lib_name = driver_name_fmt.format(name)
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if allow_experimental_apis
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cflags += '-DALLOW_EXPERIMENTAL_API'
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endif
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dpdk_extra_ldflags += pkgconfig_extra_libs
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# generate pmdinfo sources by building a temporary
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# lib and then running pmdinfogen on the contents of
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# that lib. The final lib reuses the object files and
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# adds in the new source file.
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out_filename = lib_name + '.pmd.c'
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tmp_lib = static_library('tmp_' + lib_name,
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sources,
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include_directories: includes,
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dependencies: static_deps,
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c_args: cflags)
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objs += tmp_lib.extract_all_objects()
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sources = custom_target(out_filename,
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command: [pmdinfo, tmp_lib.full_path(),
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'@OUTPUT@', pmdinfogen],
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output: out_filename,
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depends: [pmdinfogen, tmp_lib])
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if get_option('per_library_versions')
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lib_version = '@0@.1'.format(version)
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so_version = '@0@'.format(version)
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else
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lib_version = major_version
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so_version = major_version
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endif
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# now build the static driver
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static_lib = static_library(lib_name,
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sources,
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objects: objs,
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include_directories: includes,
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dependencies: static_deps,
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c_args: cflags,
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install: true)
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# now build the shared driver
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version_map = '@0@/@1@/@2@_version.map'.format(
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meson.current_source_dir(),
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drv_path, lib_name)
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implib = dir_name + '.dll.a'
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def_file = custom_target(lib_name + '_def',
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command: [map_to_def_cmd, '@INPUT@', '@OUTPUT@'],
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input: version_map,
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output: '@0@_exports.def'.format(lib_name))
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lk_deps = [version_map, def_file]
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if is_windows
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lk_args = ['-Wl,/def:' + def_file.full_path(),
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'-Wl,/implib:lib\\' + implib]
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else
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lk_args = ['-Wl,--version-script=' + version_map]
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# on unix systems check the output of the
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# experimental syms script, using it as a
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# dependency of the .so build
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lk_deps += custom_target(lib_name + '.exp_chk',
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command: [check_experimental_syms,
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version_map, '@INPUT@'],
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capture: true,
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input: static_lib,
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output: lib_name + '.exp_chk')
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endif
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shared_lib = shared_library(lib_name,
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sources,
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objects: objs,
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include_directories: includes,
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dependencies: shared_deps,
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c_args: cflags,
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link_args: lk_args,
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link_depends: lk_deps,
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version: lib_version,
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soversion: so_version,
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install: true,
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install_dir: driver_install_path)
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# create a dependency object and add it to the global dictionary so
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# testpmd or other built-in apps can find it if necessary
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shared_dep = declare_dependency(link_with: shared_lib,
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include_directories: includes,
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dependencies: shared_deps)
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static_dep = declare_dependency(link_with: static_lib,
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include_directories: includes,
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dependencies: static_deps)
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dpdk_drivers += static_lib
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set_variable('shared_@0@'.format(lib_name), shared_dep)
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set_variable('static_@0@'.format(lib_name), static_dep)
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dependency_name = ''.join(lib_name.split('rte_'))
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message('drivers/@0@: Defining dependency "@1@"'.format(
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drv_path, dependency_name))
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endif # build
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endforeach
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set_variable(class + '_drivers', class_drivers)
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endforeach
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