DC: Check plugins for required symbols

Make sure that all the required symbols exist in generated plugins.
If not, the strip command may have removed them...

svn-id: r55144

backends/platform/dc/check_plugin_symbols

@@ -0,0 +1,15 @@
+#! /bin/sh
+case "$0" in
+  */*) dir=`dirname "$0"`/;;
+  *) dir="";;
+esac
+exec < "$dir"plugin.syms
+while read sym; do
+  if sh-elf-nm "$1" | grep >/dev/null " $sym"'$'; then
+    :
+  else
+    echo >&2 "ERROR: Symbol $sym missing from $1"
+    exit 1
+  fi
+done
+exit 0

backends/platform/dc/dreamcast.mk

@@ -14,6 +14,7 @@ plugin_dist : plugins
 	  if /usr/bin/test "$$p" -ot "$$t"; then :; else \
 	    echo sh-elf-strip -g -o "$$t" "$$p"; \
 	    sh-elf-strip -g -o "$$t" "$$p"; \
+	    $(srcdir)/backends/platform/dc/check_plugin_symbols "$$t"; \
           fi;\
 	done