CLIX patch from Thomas Dickey via urs@akk.uni-karlsruhe.de (Urs Janssen).

[pf3gnuchains/gcc-fork.git] / gcc / halfpic.c

diff --git a/gcc/halfpic.c b/gcc/halfpic.c
index f691ce3..3e0ae21 100644 (file)
--- a/gcc/halfpic.c
+++ b/gcc/halfpic.c
@@ -15,7 +15,8 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 /* The OSF/rose half-pic model assumes that the non-library code does
    not need to have full PIC (position independent code), but rather,
@@ -45,9 +46,10 @@ extern rtx eliminate_constant_term ();
 extern void assemble_name ();
 extern void output_addr_const ();
 
-int flag_half_pic;             /* Global half-pic flag.  */
-int half_pic_number_ptrs;      /* # distinct pointers found */
-int half_pic_number_refs;      /* # half-pic references */
+int flag_half_pic              = 0;    /* Global half-pic flag.  */
+int half_pic_number_ptrs       = 0;    /* # distinct pointers found */
+int half_pic_number_refs       = 0;    /* # half-pic references */
+int (*ptr_half_pic_address_p)() = half_pic_address_p;
 
 /* Obstack to hold generated pic names.  */
 static struct obstack half_pic_obstack;
@@ -133,7 +135,7 @@ half_pic_hash (name, len, create_p)
 
   /* name not in hash table.  */
   if (!create_p)
-    return (struct all_refs *)0;
+    return (struct all_refs *) 0;
 
   ptr = (struct all_refs *) obstack_alloc (&half_pic_obstack, sizeof (struct all_refs));
   *ptr = zero_all_refs;
@@ -142,7 +144,7 @@ half_pic_hash (name, len, create_p)
   ptr->real_len  = len;
 
   /* Update circular links.  */
-  if (first == (struct all_refs *)0)
+  if (first == (struct all_refs *) 0)
     ptr->hash_next = ptr;
 
   else
@@ -267,6 +269,30 @@ half_pic_declare (name)
 }
 
 \f
+/* Mark that an object is explicitly external.  */
+
+void
+half_pic_external (name)
+     char *name;
+{
+  struct all_refs *ptr;
+
+  if (!flag_half_pic)
+    return;
+
+  ptr = half_pic_hash (name, 0, TRUE);
+  if (!ptr)
+    return;
+
+  ptr->external_p = TRUE;
+
+#ifdef HALF_PIC_DEBUG
+  if (HALF_PIC_DEBUG)
+    fprintf (stderr, "\n========== Half_pic_external %s\n", name);
+#endif
+}
+
+\f
 /* Return whether an address is half-pic.  */
 
 int
@@ -316,7 +342,7 @@ half_pic_address_p (addr)
        return FALSE;
 
       ptr = half_pic_hash (name, len, FALSE);
-      if (ptr == (struct all_refs *)0)
+      if (ptr == (struct all_refs *) 0)
        return FALSE;
 
       if (ptr->external_p)
@@ -350,7 +376,7 @@ half_pic_ptr (operand)
   name = XSTR (operand, 0);
   len = strlen (name);
   p = half_pic_hash (name, len, FALSE);
-  if (p == (struct all_refs *)0 || !p->external_p)
+  if (p == (struct all_refs *) 0 || !p->external_p)
     return operand;
 
   if (!p->pointer_p)