-/*
- * frag_grow()
- *
- * Try to augment current frag by nchars chars.
- * If there is no room, close of the current frag with a ".fill 0"
- * and begin a new frag. Unless the new frag has nchars chars available
- * do not return. Do not set up any fields of *now_frag.
- */
-void
-frag_grow (nchars)
- unsigned int nchars;
+/* Check that we're not trying to assemble into a section that can't
+ allocate frags (currently, this is only possible in the absolute
+ section), or into an mri common. */
+
+static void
+frag_alloc_check (const struct obstack *ob)
+{
+ if (ob->chunk_size == 0)
+ {
+ as_bad (_("attempt to allocate data in absolute section"));
+ subseg_set (text_section, 0);
+ }
+
+ if (mri_common_symbol != NULL)
+ {
+ as_bad (_("attempt to allocate data in common section"));
+ mri_common_symbol = NULL;
+ }
+}
+
+/* Allocate a frag on the specified obstack.
+ Call this routine from everywhere else, so that all the weird alignment
+ hackery can be done in just one place. */
+
+fragS *
+frag_alloc (struct obstack *ob)
+{
+ fragS *ptr;
+ int oalign;
+
+ (void) obstack_alloc (ob, 0);
+ oalign = obstack_alignment_mask (ob);
+ obstack_alignment_mask (ob) = 0;
+ ptr = (fragS *) obstack_alloc (ob, SIZEOF_STRUCT_FRAG);
+ obstack_alignment_mask (ob) = oalign;
+ memset (ptr, 0, SIZEOF_STRUCT_FRAG);
+ return ptr;
+}
+\f
+/* Try to augment current frag by nchars chars.
+ If there is no room, close of the current frag with a ".fill 0"
+ and begin a new frag. Unless the new frag has nchars chars available
+ do not return. Do not set up any fields of *now_frag. */
+
+void
+frag_grow (unsigned int nchars)