cba806e07d
As per new ABI policy [1], all of the libraries are now versioned using one global ABI version. Stable libraries use the MAJOR.MINOR ABI version for their shared objects, while experimental libraries use the 0.MAJORMINOR convention for their versioning. Experimental library versioning is managed globally. Changes in this patch implement the necessary steps to enable that. The CONFIG_RTE_MAJOR_ABI option was introduced to permit multiple DPDK versions installed side by side. The problem is now addressed through the new ABI policy, and thus can be removed. [David] For external libraries relying on Makefile, LIBABIVER is preserved to avoid using DPDK global ABI version. [1] https://doc.dpdk.org/guides/contributing/abi_policy.html Signed-off-by: Marcin Baran <marcinx.baran@intel.com> Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com> Signed-off-by: David Marchand <david.marchand@redhat.com> Acked-by: Thomas Monjalon <thomas@monjalon.net>
211 lines
6.4 KiB
Meson
211 lines
6.4 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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'raw', # depends on common and bus.
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'net', # depends on common, bus, mempool and raw.
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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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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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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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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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is_experimental = run_command(is_experimental_cmd,
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files(version_map)).returncode()
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if is_experimental != 0
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lib_version = experimental_abi_version
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so_version = experimental_abi_version
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else
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lib_version = abi_version
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so_version = abi_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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