eal/memory: fix unused SIGBUS handler
[dpdk.git] / drivers / meson.build
index 451abac..3d08540 100644 (file)
-#   BSD LICENSE
-#
-#   Copyright(c) 2017 Intel Corporation.
-#   All rights reserved.
-#
-#   Redistribution and use in source and binary forms, with or without
-#   modification, are permitted provided that the following conditions
-#   are met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-#       notice, this list of conditions and the following disclaimer in
-#       the documentation and/or other materials provided with the
-#       distribution.
-#     * Neither the name of Intel Corporation nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-driver_classes = ['bus', 'crypto', 'event', 'mempool', 'net']
-
-foreach class: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)
-
-       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
-               name = drv
-               version = 1
-               allow_experimental_apis = false
-               sources = []
-               objs = []
-               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() or cc.find_library(). For most cases, we
-               # probably 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)
-
-               if build
-                       dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1)
-
-                       if allow_experimental_apis
-                               cflags += '-DALLOW_EXPERIMENTAL_API'
-                       endif
-
-                       # get dependency objs from strings
-                       dep_objs = []
-                       foreach d:deps
-                               dep_objs += [get_variable('dep_rte_' + d)]
-                       endforeach
-                       dep_objs += ext_deps
-                       dpdk_extra_ldflags += pkgconfig_extra_libs
-
-                       # generate pmdinfo sources
-                       pmdinfogen_srcs = run_command('grep', '--files-with-matches',
-                               'RTE_PMD_REGISTER_.*(.*)', sources).stdout().strip().split()
-                       foreach src: pmdinfogen_srcs
-                               out_filename = '@0@.pmd.c'.format(src.split('/')[-1])
-                               tmp_lib = static_library('tmp_@0@'.format(src.underscorify()),
-                                       src, include_directories: includes,
-                                       dependencies: dep_objs,
-                                       c_args: cflags)
-                               sources += custom_target(out_filename,
-                                               command: [pmdinfo, tmp_lib.full_path(),
-                                                       '@OUTPUT@', pmdinfogen],
-                                               output: out_filename,
-                                               depends: [pmdinfogen, tmp_lib])
-                       endforeach
-
-                       if get_option('per_library_versions')
-                               lib_version = '@0@.1'.format(version)
-                               so_version = '@0@'.format(version)
-                       else
-                               pver = meson.project_version().split('.')
-                               lib_version = '@0@.@1@'.format(pver.get(0),
-                                               pver.get(1))
-                               so_version = lib_version
-                       endif
-
-                       # now build the driver itself, and add to the drivers list
-                       lib_name = driver_name_fmt.format(name)
-                       version_map = '@0@/@1@/@2@_version.map'.format(
-                                       meson.current_source_dir(),
-                                       drv_path, lib_name)
-                       lib = library(lib_name,
-                               sources,
-                               objects: objs,
-                               include_directories: includes,
-                               dependencies: dep_objs,
-                               c_args: cflags,
-                               link_args: '-Wl,--version-script=' + version_map,
-                               link_depends: version_map,
-                               version: lib_version,
-                               soversion: so_version,
-                               install: true,
-                               install_dir: driver_install_path)
-
-                       dpdk_drivers += lib
-
-                       # create a dependency object and add it to the global dictionary so
-                       # testpmd or other built-in apps can find it if necessary
-                       set_variable('dep_@0@'.format(lib_name),
-                                       declare_dependency(link_with: lib,
-                                       include_directories: includes,
-                                       dependencies: dep_objs))
-               endif # build
-       endforeach
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017-2019 Intel Corporation
+
+# Defines the order of dependencies evaluation
+subdirs = [
+        'common',
+        'bus',
+        'common/cnxk',    # depends on bus.
+        'common/mlx5',    # depends on bus.
+        'common/qat',     # depends on bus.
+        'common/sfc_efx', # depends on bus.
+        'mempool',        # depends on common and bus.
+        'net',            # depends on common, bus, mempool
+        'raw',            # depends on common, bus and net.
+        'crypto',         # depends on common, bus and mempool (net in future).
+        'compress',       # depends on common, bus, mempool.
+        'regex',          # depends on common, bus, regexdev.
+        'vdpa',           # depends on common, bus and mempool.
+        'event',          # depends on common, bus, mempool and net.
+        'baseband',       # depends on common and bus.
+]
+
+if meson.is_cross_build()
+    disable_drivers += ',' + meson.get_cross_property('disable_drivers', '')
+    enable_drivers += ',' + meson.get_cross_property('enable_drivers', '')
+endif
+
+# add cmdline disabled drivers and meson disabled drivers together
+disable_drivers += ',' + get_option('disable_drivers')
+disable_drivers = run_command(list_dir_globs, disable_drivers, check: true).stdout().split()
+
+# add cmdline enabled drivers and meson enabled drivers together
+enable_drivers = ',' + get_option('enable_drivers')
+enable_drivers = run_command(list_dir_globs, enable_drivers, check: true).stdout().split()
+if enable_drivers.length() == 0
+    enable_drivers = run_command(list_dir_globs, '*/*', check: true).stdout().split()
+endif
+
+# these drivers must always be enabled, otherwise the build breaks
+always_enable = ['bus/pci', 'bus/vdev']
+enable_drivers += always_enable
+
+default_cflags = machine_args
+default_cflags += ['-DALLOW_EXPERIMENTAL_API']
+default_cflags += ['-DALLOW_INTERNAL_API']
+
+if cc.has_argument('-Wno-format-truncation')
+    default_cflags += '-Wno-format-truncation'
+endif
+
+foreach subpath:subdirs
+    drivers = []
+    std_deps = []
+    log_prefix = ''
+
+    # subpath can be either "class" or "class/driver"
+    if subpath.contains('/')
+        driver_path = subpath.split('/')
+        class = driver_path[0]
+        drivers += driver_path[1]
+    else
+        class = subpath
+        subdir(class)
+    endif
+
+    # save class name on first occurrence
+    if not dpdk_driver_classes.contains(class)
+        dpdk_driver_classes += class
+    endif
+    # get already enabled drivers of the same class
+    enabled_drivers = get_variable(class + '_drivers', [])
+
+    # default log prefix can be defined per class
+    if log_prefix == ''
+        # default log name is pmd.class.driver
+        log_prefix = 'pmd.' + class
+    endif
+
+    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
+        sources = []
+        headers = []
+        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 = []
+
+        if not enable_drivers.contains(drv_path)
+            build = false
+            reason = 'not in enabled drivers build config'
+        elif disable_drivers.contains(drv_path)
+            if always_enable.contains(drv_path)
+                message('Driver @0@ cannot be disabled, not disabling.'.format(drv_path))
+            else
+                build = false
+                reason = 'explicitly disabled via build config'
+            endif
+        endif
+
+        if build
+            # pull in driver directory which should update all the local variables
+            subdir(drv_path)
+
+            # get dependency objs from strings
+            shared_deps = ext_deps
+            static_deps = ext_deps
+            foreach d:deps
+                if not build
+                    break
+                endif
+                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
+            continue
+        endif
+
+        enabled_drivers += name
+        lib_name = '_'.join(['rte', class, name])
+        cflags += '-DRTE_LOG_DEFAULT_LOGTYPE=' + '.'.join([log_prefix, name])
+        dpdk_conf.set(lib_name.to_upper(), 1)
+
+        dpdk_extra_ldflags += pkgconfig_extra_libs
+
+        install_headers(headers)
+
+        # 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(recursive: true)
+        sources = custom_target(out_filename,
+                command: [pmdinfo, tmp_lib.full_path(), '@OUTPUT@', pmdinfogen],
+                output: out_filename,
+                depends: [tmp_lib])
+
+        # 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@/version.map'.format(meson.current_source_dir(), drv_path)
+        implib = 'lib' + lib_name + '.dll.a'
+
+        def_file = custom_target(lib_name + '_def',
+                command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
+                input: version_map,
+                output: '@0@_exports.def'.format(lib_name))
+
+        mingw_map = custom_target(lib_name + '_mingw',
+                command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
+                input: version_map,
+                output: '@0@_mingw.map'.format(lib_name))
+
+        lk_deps = [version_map, def_file, mingw_map]
+        if is_windows
+            if is_ms_linker
+                lk_args = ['-Wl,/def:' + def_file.full_path()]
+                if meson.version().version_compare('<0.54.0')
+                    lk_args += ['-Wl,/implib:drivers\\' + implib]
+                endif
+            else
+                lk_args = ['-Wl,--version-script=' + mingw_map.full_path()]
+            endif
+        else
+            lk_args = ['-Wl,--version-script=' + version_map]
+            if developer_mode
+                # on unix systems check the output of the
+                # check-symbols.sh script, using it as a
+                # dependency of the .so build
+                lk_deps += custom_target(lib_name + '.sym_chk',
+                        command: [check_symbols, version_map, '@INPUT@'],
+                        capture: true,
+                        input: static_lib,
+                        output: lib_name + '.sym_chk')
+            endif
+        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: abi_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(
+                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_'))
+        if developer_mode
+            message('drivers/@0@: Defining dependency "@1@"'.format(
+                    drv_path, dependency_name))
+        endif
+    endforeach
+
+    set_variable(class + '_drivers', enabled_drivers)
 endforeach