X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fmeson.build;h=156d2dc717b30d238bc2191266d7a1342c902665;hb=23bdcedcd8caa0d268b615df3bdb08411f97856e;hp=b41a0f18e8d31f344a31ed0c8827e95dc59bb889;hpb=45775d75128e0ecb4dca5aee217e37921e033527;p=dpdk.git

diff --git a/drivers/meson.build b/drivers/meson.build
index b41a0f18e8..156d2dc717 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -1,14 +1,29 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
 
-# Defines the order in which the drivers are buit.
-driver_classes = ['bus',
-	       'mempool', # depends on bus.
-	       'net',     # depends on bus and mempool.
-	       'crypto',  # depenss on bus, mempool (net in future).
-	       'event']   # depends on bus, mempool and net.
+if is_windows
+	subdir_done()
+endif
 
-foreach class:driver_classes
+# Defines the order in which the drivers are buit.
+dpdk_driver_classes = ['common',
+	       'bus',
+	       'mempool', # depends on common and bus.
+	       'net',     # depends on common, bus and mempool.
+	       '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.
+
+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
@@ -17,33 +32,72 @@ foreach class:driver_classes
 	                     # 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
 		version = 1
 		allow_experimental_apis = false
 		sources = []
 		objs = []
-		cflags = machine_args
+		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() 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)
 			lib_name = driver_name_fmt.format(name)
 
@@ -51,15 +105,6 @@ foreach class:driver_classes
 				cflags += '-DALLOW_EXPERIMENTAL_API'
 			endif
 
-			# get dependency objs from strings
-			shared_objs = []
-			static_objs = []
-			foreach d:deps
-				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
@@ -70,7 +115,7 @@ 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,
@@ -83,10 +128,8 @@ foreach class:driver_classes
 				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
+				lib_version = major_version
+				so_version = major_version
 			endif
 
 			# now build the static driver
@@ -94,7 +137,7 @@ foreach class:driver_classes
 				sources,
 				objects: objs,
 				include_directories: includes,
-				dependencies: static_objs,
+				dependencies: static_deps,
 				c_args: cflags,
 				install: true)
 
@@ -106,7 +149,7 @@ foreach class:driver_classes
 				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,
@@ -119,15 +162,20 @@ 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
+
+	set_variable(class + '_drivers', class_drivers)
 endforeach