From 568767a62c1e147235e0645fe96beb533967add2 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@cygnus.com>
Date: Sat, 18 Sep 1999 11:54:36 -0700
Subject: c-pragma.c (mark_align_stack): New.

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

From-SVN: r29502
---
 gcc/c-pragma.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'gcc/c-pragma.c')

diff --git a/gcc/c-pragma.c b/gcc/c-pragma.c
index c002587..ba0c836 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
+}
-- 
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