X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fmeson.build;h=72eec46088c9957bd960c4636b39e50da7378ccf;hb=cba806e07d6f7e6cfa9749346f2dc75288f984f7;hp=c3c66bbc0471a070cdc401b7f859ebef1e0bda5f;hpb=085766aa67b7c18897fbcea69be0d7900db295c0;p=dpdk.git

diff --git a/drivers/meson.build b/drivers/meson.build
index c3c66bbc04..72eec46088 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -1,26 +1,29 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
+
+if is_windows
+	subdir_done()
+endif
 
 # Defines the order in which the drivers are buit.
-driver_classes = ['common',
+dpdk_driver_classes = ['common',
 	       'bus',
 	       'mempool', # depends on common and bus.
-	       'net',     # depends on common, bus and mempool.
+	       '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.
-	       'raw']     # depends on common, bus, mempool, net and event.
+	       '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
 
-# specify -D_GNU_SOURCE unconditionally
-default_cflags += '-D_GNU_SOURCE'
-
-foreach class:driver_classes
+foreach class:dpdk_driver_classes
 	drivers = []
 	std_deps = []
 	config_flag_fmt = '' # format string used to set the value in dpdk_conf
@@ -36,8 +39,8 @@ foreach class:driver_classes
 
 		# 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
-		version = 1
 		allow_experimental_apis = false
 		sources = []
 		objs = []
@@ -46,17 +49,52 @@ foreach class:driver_classes
 		# 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
+		# 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)
@@ -66,19 +104,6 @@ foreach class:driver_classes
 				cflags += '-DALLOW_EXPERIMENTAL_API'
 			endif
 
-			# get dependency objs from strings
-			shared_objs = []
-			static_objs = []
-			foreach d:deps
-				if not is_variable('shared_rte_' + d)
-					error('Missing dependency ' + d +
-						' for driver ' + lib_name)
-				endif
-				shared_objs += [get_variable('shared_rte_' + d)]
-				static_objs += [get_variable('static_rte_' + d)]
-			endforeach
-			shared_objs += ext_deps
-			static_objs += ext_deps
 			dpdk_extra_ldflags += pkgconfig_extra_libs
 
 			# generate pmdinfo sources by building a temporary
@@ -89,7 +114,7 @@ foreach class:driver_classes
 			tmp_lib = static_library('tmp_' + lib_name,
 					sources,
 					include_directories: includes,
-					dependencies: static_objs,
+					dependencies: static_deps,
 					c_args: cflags)
 			objs += tmp_lib.extract_all_objects()
 			sources = custom_target(out_filename,
@@ -98,12 +123,19 @@ foreach class:driver_classes
 					output: out_filename,
 					depends: [pmdinfogen, tmp_lib])
 
-			if get_option('per_library_versions')
-				lib_version = '@0@.1'.format(version)
-				so_version = '@0@'.format(version)
+			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 = major_version
-				so_version = major_version
+				lib_version = abi_version
+				so_version = abi_version
 			endif
 
 			# now build the static driver
@@ -111,7 +143,7 @@ foreach class:driver_classes
 				sources,
 				objects: objs,
 				include_directories: includes,
-				dependencies: static_objs,
+				dependencies: static_deps,
 				c_args: cflags,
 				install: true)
 
@@ -119,14 +151,37 @@ foreach class:driver_classes
 			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_objs,
+				dependencies: shared_deps,
 				c_args: cflags,
-				link_args: '-Wl,--version-script=' + version_map,
-				link_depends: version_map,
+				link_args: lk_args,
+				link_depends: lk_deps,
 				version: lib_version,
 				soversion: so_version,
 				install: true,
@@ -136,20 +191,20 @@ foreach class:driver_classes
 			# testpmd or other built-in apps can find it if necessary
 			shared_dep = declare_dependency(link_with: shared_lib,
 					include_directories: includes,
-					dependencies: shared_objs)
+					dependencies: shared_deps)
 			static_dep = declare_dependency(link_with: static_lib,
 					include_directories: includes,
-					dependencies: static_objs)
+					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
 
-	if meson.version().version_compare('>=0.47')
-		# prior to 0.47, set_variable can't take array params
-		set_variable(class + '_drivers', class_drivers)
-	endif
+	set_variable(class + '_drivers', class_drivers)
 endforeach