Don't include the .bss section in the archos rockboy overlay as well. Explicitly add common symbols to .bss section for plugins and codecs.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8309 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/plugin.lds

@@ -113,6 +113,7 @@ SECTIONS
 #endif
     {
         *(.bss*)
+        *(COMMON)
     } > PLUGIN_RAM
 
     /* Special trick to avoid a linker error when no other sections are

apps/plugins/rockboy.c

@@ -69,10 +69,12 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
                    " overlay doesn't fit into memory.");
         return PLUGIN_ERROR;
     }
+    rb->memset(header.start_addr, 0, header.end_addr - header.start_addr);
+
     rb->lseek(fh, 0, SEEK_SET);
     readsize = rb->read(fh, header.start_addr, header.end_addr - header.start_addr);
     rb->close(fh);
-    if (readsize != header.end_addr - header.start_addr)
+    if (readsize <= sizeof(header))
     {
         rb->splash(2*HZ, true, "Error loading " OVL_DISPLAYNAME " overlay.");
         return PLUGIN_ERROR;

apps/plugins/rockboy/archos.lds

@@ -28,18 +28,19 @@ SECTIONS
         *(.text)
     } > OVERLAY_RAM
 
+    .rodata : {
+        *(.rodata)
+        *(.rodata.str1.1)
+        *(.rodata.str1.4)
+    } > OVERLAY_RAM
+
     .data : {
         *(.data)
     } > OVERLAY_RAM
 
     .bss : {
         *(.bss)
-    } > OVERLAY_RAM
-
-    .rodata : {
-        *(.rodata)
-        *(.rodata.str1.1)
-        *(.rodata.str1.4)
+        *(COMMON)
         . = ALIGN(0x4);
         _ovl_end_addr = .;
     } > OVERLAY_RAM