Add support for building a particular profile for a target

Add a --profile switch to build_rts.py to allow us to specify which profile
to build for a target. By default, the script will create and build runtimes
for all supported profiles. The new --profile switch allows us to create
just the runtime that is being requested by a customer.

Issue: eng/toolchain/bb-runtimes#73

build_rts.py

@@ -370,6 +370,11 @@ def main():
     parser.add_argument(
         "target", nargs="+", help="List of target boards to generate runtimes for"
     )
+    parser.add_argument(
+        "--profiles",
+        type=str,
+        help="Comma seperated list of profiles to generate runtimes for",
+    )
     args = parser.parse_args()
 
     if args.verbose:
@@ -417,7 +422,11 @@ def main():
         print("install runtime sources for %s" % board.name)
         sys.stdout.flush()
         installer = Installer(board)
-        projects += installer.install(dest, rts_descriptor=args.rts_src_descriptor)
+        projects += installer.install(
+            dest,
+            rts_descriptor=args.rts_src_descriptor,
+            profiles=args.profiles.split(","),
+        )
 
     # and build them
     if args.build:

support/bsp_sources/installer.py

@@ -172,7 +172,7 @@ def _get_rts_dirs(self, rts_source_item, scenarios):
                 ret += self._get_rts_dirs(sub, scenarios)
         return ret
 
-    def install(self, destination, rts_descriptor=None):
+    def install(self, destination, rts_descriptor=None, profiles=None):
         # Build target directories
         destination = os.path.abspath(destination)
         if not os.path.exists(destination):
@@ -183,6 +183,11 @@ def install(self, destination, rts_descriptor=None):
         projects = []
 
         for rts_base_name, rts_obj in self.tgt.runtimes.items():
+            # If we have been given a list of profiles, skip the profiles that
+            # are not in the list.
+            if profiles is not None and rts_base_name not in profiles:
+                continue
+
             if self.tgt.is_native or self.tgt.is_legacy_format:
                 rtsname = "rts-%s" % rts_base_name
                 if self.tgt.name.endswith("vx7r2cert-rtp"):

support/bsp_sources/target.py

@@ -339,7 +339,7 @@ def dump_runtime_xml(self, rts_name, rts):
 
         ret += "\n"
 
-        for lang in ("Ada", "C", "Asm", "Asm2", "Asm_Cpp"):
+        for lang in ("Ada", "C", "C++", "Asm", "Asm2", "Asm_Cpp"):
             w = "      "
             ret += w + 'for Leading_Required_Switches ("%s") use\n' % lang
             w = "         "