PR 4454

[deliverable/binutils-gdb.git] / bfd / coff-alpha.c

diff --git a/bfd/coff-alpha.c b/bfd/coff-alpha.c
index 68dd76527860ce06b0619cacddd0c8934d32253a..dcb182bff9b54af4cee67b73a5440bdcc273182d 100644 (file)
--- a/bfd/coff-alpha.c
+++ b/bfd/coff-alpha.c
@@ -1,6 +1,6 @@
 /* BFD back-end for ALPHA Extended-Coff files.
    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-   2003, 2004 Free Software Foundation, Inc.
+   2003, 2004, 2005, 2007 Free Software Foundation, Inc.
    Modified from coff-mips.c by Steve Chamberlain <sac@cygnus.com> and
    Ian Lance Taylor <ian@cygnus.com>.
 
@@ -18,10 +18,10 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "bfdlink.h"
 #include "libbfd.h"
 #include "coff/internal.h"
@@ -481,10 +481,16 @@ alpha_ecoff_bad_format_hook (abfd, filehdr)
 {
   struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
 
-  if (ALPHA_ECOFF_BADMAG (*internal_f))
-    return FALSE;
+  if (! ALPHA_ECOFF_BADMAG (*internal_f))
+    return TRUE;
 
-  return TRUE;
+  if (ALPHA_ECOFF_COMPRESSEDMAG (*internal_f))
+    (*_bfd_error_handler)
+      (_("%B: Cannot handle compressed Alpha binaries.\n"
+        "   Use compiler flags, or objZ, to generate uncompressed binaries."),
+       abfd);
+
+  return FALSE;
 }
 
 /* This is a hook called by coff_real_object_p to create any backend
@@ -603,8 +609,11 @@ alpha_ecoff_swap_reloc_out (abfd, intern, dst)
       size = intern->r_size;
     }
 
+  /* XXX FIXME:  The maximum symndx value used to be 14 but this
+     fails with object files produced by DEC's C++ compiler.
+     Where does the value 14 (or 15) come from anyway ?  */
   BFD_ASSERT (intern->r_extern
-             || (intern->r_symndx >= 0 && intern->r_symndx <= 14));
+             || (intern->r_symndx >= 0 && intern->r_symndx <= 15));
 
   H_PUT_64 (abfd, intern->r_vaddr, ext->r_vaddr);
   H_PUT_32 (abfd, symndx, ext->r_symndx);
@@ -632,7 +641,15 @@ alpha_adjust_reloc_in (abfd, intern, rptr)
      arelent *rptr;
 {
   if (intern->r_type > ALPHA_R_GPVALUE)
-    abort ();
+    {
+      (*_bfd_error_handler)
+       (_("%B: unknown/unsupported relocation type %d"),
+        abfd, intern->r_type);
+      bfd_set_error (bfd_error_bad_value);
+      rptr->addend = 0;
+      rptr->howto  = NULL;
+      return;
+    }
 
   switch (intern->r_type)
     {
@@ -668,7 +685,7 @@ alpha_adjust_reloc_in (abfd, intern, rptr)
     case ALPHA_R_OP_STORE:
       /* The STORE reloc needs the size and offset fields.  We store
         them in the addend.  */
-      BFD_ASSERT (intern->r_offset <= 256 && intern->r_size <= 256);
+      BFD_ASSERT (intern->r_offset <= 256);
       rptr->addend = (intern->r_offset << 8) + intern->r_size;
       break;
 
@@ -1221,29 +1238,28 @@ alpha_bfd_reloc_type_lookup (abfd, code)
     case BFD_RELOC_64_PCREL:
       alpha_type = ALPHA_R_SREL64;
       break;
-#if 0
-    case ???:
-      alpha_type = ALPHA_R_OP_PUSH;
-      break;
-    case ???:
-      alpha_type = ALPHA_R_OP_STORE;
-      break;
-    case ???:
-      alpha_type = ALPHA_R_OP_PSUB;
-      break;
-    case ???:
-      alpha_type = ALPHA_R_OP_PRSHIFT;
-      break;
-    case ???:
-      alpha_type = ALPHA_R_GPVALUE;
-      break;
-#endif
     default:
       return (reloc_howto_type *) NULL;
     }
 
   return &alpha_howto_table[alpha_type];
 }
+
+static reloc_howto_type *
+alpha_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+                            const char *r_name)
+{
+  unsigned int i;
+
+  for (i = 0;
+       i < sizeof (alpha_howto_table) / sizeof (alpha_howto_table[0]);
+       i++)
+    if (alpha_howto_table[i].name != NULL
+       && strcasecmp (alpha_howto_table[i].name, r_name) == 0)
+      return &alpha_howto_table[i];
+
+  return NULL;
+}
 \f
 /* A helper routine for alpha_relocate_section which converts an
    external reloc when generating relocatable output.  Returns the
@@ -1538,8 +1554,26 @@ alpha_relocate_section (output_bfd, info, input_bfd, input_section,
 
       switch (r_type)
        {
+       case ALPHA_R_GPRELHIGH:
+         (*_bfd_error_handler)
+           (_("%B: unsupported relocation: ALPHA_R_GPRELHIGH"),
+            input_bfd);
+         bfd_set_error (bfd_error_bad_value);
+         continue;
+         
+       case ALPHA_R_GPRELLOW:
+         (*_bfd_error_handler)
+           (_("%B: unsupported relocation: ALPHA_R_GPRELLOW"),
+            input_bfd);
+         bfd_set_error (bfd_error_bad_value);
+         continue;
+         
        default:
-         abort ();
+         (*_bfd_error_handler)
+           (_("%B: unknown relocation type %d"),
+            input_bfd, (int) r_type);
+         bfd_set_error (bfd_error_bad_value);
+         continue;
 
        case ALPHA_R_IGNORE:
          /* This reloc appears after a GPDISP reloc.  On earlier
@@ -2343,6 +2377,8 @@ static const struct ecoff_backend_data alpha_ecoff_backend_data =
 
 /* Looking up a reloc type is Alpha specific.  */
 #define _bfd_ecoff_bfd_reloc_type_lookup alpha_bfd_reloc_type_lookup
+#define _bfd_ecoff_bfd_reloc_name_lookup \
+  alpha_bfd_reloc_name_lookup
 
 /* So is getting relocated section contents.  */
 #define _bfd_ecoff_bfd_get_relocated_section_contents \