* c-pragma.c (mark_align_stack): New.

        (init_pragma): New.
        * c-pragma.h (init_pragma): Declare it.
        * c-lex.c (init_parse): Call it.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29502 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 24 insertions, 0 deletions

diff --git a/gcc/c-pragma.c b/gcc/c-pragma.c
index c002587b4f1..ba0c8367390 100644
--- a/gcc/c-pragma.c
+++ b/gcc/c-pragma.c
@@ -512,3 +512,27 @@ handle_pragma_token (string, token)
   return 1;
 }
 #endif /* HANDLE_GENERIC_PRAGMAS */
+
+#ifdef HANDLE_PRAGMA_PACK_PUSH_POP
+static void
+mark_align_stack (p)
+    void *p;
+{
+  align_stack *a = (align_stack *) p;
+
+  while (a)
+    {
+      ggc_mark_tree (a->id);
+      a = a->prev;
+    }
+}
+#endif
+
+void
+init_pragma ()
+{
+#ifdef HANDLE_PRAGMA_PACK_PUSH_POP
+  ggc_add_root (&alignment_stack, 1, sizeof(alignment_stack),
+		mark_align_stack);
+#endif
+}