203b61dc5e
When building a driver or library and a required internal dependency
is missing, the error message printed was:
Tried to get unknown variable "shared_rte_<libname>".
However, a better way to handle this is to catch the missing variable
earlier and convert it into a proper message, informing the user
that the required dependency is missing, and most importantly, what
library or driver wanted that dependency.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
144 lines
4.5 KiB
Meson
144 lines
4.5 KiB
Meson
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2017 Intel Corporation
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# Defines the order in which the drivers are buit.
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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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'raw'] # depends on common, bus, mempool, net and event.
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foreach class: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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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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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 = machine_args
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if cc.has_argument('-Wno-format-truncation')
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cflags += '-Wno-format-truncation'
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endif
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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() or cc.find_library(). For most cases, we
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# probably also need to specify the "-l" flags in
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# pkgconfig_extra_libs variable too, so that it can be reflected
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# in the pkgconfig output for 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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if build
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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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# get dependency objs from strings
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shared_objs = []
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static_objs = []
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foreach d:deps
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if not is_variable('shared_rte_' + d)
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error('Missing dependency ' + d +
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' for driver ' + lib_name)
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endif
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shared_objs += [get_variable('shared_rte_' + d)]
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static_objs += [get_variable('static_rte_' + d)]
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endforeach
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shared_objs += ext_deps
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static_objs += ext_deps
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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_objs,
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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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pver = meson.project_version().split('.')
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lib_version = '@0@.@1@'.format(pver.get(0),
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pver.get(1))
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so_version = lib_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_objs,
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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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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_objs,
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c_args: cflags,
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link_args: '-Wl,--version-script=' + version_map,
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link_depends: version_map,
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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_objs)
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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_objs)
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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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endif # build
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endforeach
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endforeach
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