diff --git a/libasm/asm_align.c b/libasm/asm_align.c
new file mode 100644
index 0000000..e59a070
--- /dev/null
+++ b/libasm/asm_align.c
@@ -0,0 +1,175 @@
+/* Align section.
+   Copyright (C) 2002, 2005 Red Hat, Inc.
+   This file is part of elfutils.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of either
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at
+       your option) any later version
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at
+       your option) any later version
+
+   or both in parallel, as here.
+
+   elfutils is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <inttypes.h>
+#include <stdlib.h>
+
+#include <libasmP.h>
+#include <system.h>
+
+
+int
+asm_align (AsmScn_t *asmscn, GElf_Word value)
+{
+  if (asmscn == NULL)
+    /* An earlier error.  */
+    return -1;
+
+      /* The alignment value must be a power of two.  */
+  if (unlikely (! powerof2 (value)))
+    {
+      __libasm_seterrno (ASM_E_INVALID);
+      return -1;
+    }
+
+  if (unlikely (asmscn->ctx->textp))
+    {
+      fprintf (asmscn->ctx->out.file, "\t.align %" PRId32 ", ",
+	       (int32_t) value);
+      if (asmscn->pattern->len == 1)
+	fprintf (asmscn->ctx->out.file, "%02hhx\n", asmscn->pattern->bytes[0]);
+      else
+	{
+	  fputc_unlocked ('"', asmscn->ctx->out.file);
+
+	  for (size_t cnt = 0; cnt < asmscn->pattern->len; ++cnt)
+	    fprintf (asmscn->ctx->out.file, "\\x%02hhx",
+		     asmscn->pattern->bytes[cnt]);
+
+	  fputs_unlocked ("\"\n", asmscn->ctx->out.file);
+	}
+      return 0;
+    }
+
+  rwlock_wrlock (asmscn->ctx->lock);
+
+  int result = 0;
+
+  /* Fillbytes necessary?  */
+  if ((asmscn->offset & (value - 1)) != 0)
+    {
+      /* Add fillbytes.  */
+      size_t cnt = value - (asmscn->offset & (value - 1));
+
+      /* Ensure there is enough room to add the fill bytes.  */
+      result = __libasm_ensure_section_space (asmscn, cnt);
+      if (result != 0)
+	goto out;
+
+      /* Fill in the bytes.  We align the pattern according to the
+	 current offset.  */
+      size_t byteptr = asmscn->offset % asmscn->pattern->len;
+
+      /* Update the total size.  */
+      asmscn->offset += cnt;
+
+      do
+	{
+	  asmscn->content->data[asmscn->content->len++]
+	    = asmscn->pattern->bytes[byteptr++];
+
+	  if (byteptr == asmscn->pattern->len)
+	    byteptr = 0;
+	}
+      while (--cnt > 0);
+    }
+
+  /* Remember the maximum alignment for this subsection.  */
+  if (asmscn->max_align < value)
+    {
+      asmscn->max_align = value;
+
+      /* Update the parent as well (if it exists).  */
+      if (asmscn->subsection_id != 0)
+	{
+	  rwlock_wrlock (asmscn->data.up->ctx->lock);
+
+	  if (asmscn->data.up->max_align < value)
+	    asmscn->data.up->max_align = value;
+
+	  rwlock_unlock (asmscn->data.up->ctx->lock);
+	}
+    }
+
+ out:
+  rwlock_unlock (asmscn->ctx->lock);
+
+  return result;
+}
+
+
+/* Ensure there are at least LEN bytes available in the output buffer
+   for ASMSCN.  */
+int
+internal_function
+__libasm_ensure_section_space (AsmScn_t *asmscn, size_t len)
+{
+  /* The blocks with the section content are kept in a circular
+     single-linked list.  */
+  size_t size;
+
+  if (asmscn->content == NULL)
+    {
+      /* This is the first block.  */
+      size = MAX (2 * len, 960);
+
+      asmscn->content = (struct AsmData *) malloc (sizeof (struct AsmData)
+						   + size);
+      if (asmscn->content == NULL)
+	return -1;
+
+      asmscn->content->next = asmscn->content;
+    }
+  else
+    {
+      struct AsmData *newp;
+
+      if (asmscn->content->maxlen - asmscn->content->len >= len)
+	/* Nothing to do, there is enough space.  */
+	return 0;
+
+      size = MAX (2 *len, MIN (32768, 2 * asmscn->offset));
+
+      newp = (struct AsmData *) malloc (sizeof (struct AsmData) + size);
+      if (newp == NULL)
+	return -1;
+
+      newp->next = asmscn->content->next;
+      asmscn->content = asmscn->content->next = newp;
+    }
+
+  asmscn->content->len = 0;
+  asmscn->content->maxlen = size;
+
+  return 0;
+}