numam-dpdk/drivers/meson.build
Marcin Baran cba806e07d build: change ABI versioning to global
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>
2019-11-20 23:05:39 +01:00

211 lines
6.4 KiB
Meson

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