Enable the Dot Product extension by default for Armv8.4-a.

[deliverable/binutils-gdb.git] / bfd / coff64-rs6000.c

diff --git a/bfd/coff64-rs6000.c b/bfd/coff64-rs6000.c
index 955ea57ee8fa8bdbe4d5573f810c17c7fa45b4d7..460bf49f52f4d413a954989ae77ebaeabcb89052 100644 (file)
--- a/bfd/coff64-rs6000.c
+++ b/bfd/coff64-rs6000.c
@@ -1,5 +1,5 @@
 /* BFD back-end for IBM RS/6000 "XCOFF64" files.
-   Copyright (C) 2000-2016 Free Software Foundation, Inc.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
    Written Clinton Popetz.
    Contributed by Cygnus Support.
 
@@ -322,7 +322,7 @@ _bfd_xcoff64_swap_sym_in (bfd *abfd, void *ext1, void *in1)
   in->_n._n_n._n_zeroes = 0;
   in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e_offset);
   in->n_value = H_GET_64 (abfd, ext->e_value);
-  in->n_scnum = H_GET_16 (abfd, ext->e_scnum);
+  in->n_scnum = (short) H_GET_16 (abfd, ext->e_scnum);
   in->n_type = H_GET_16 (abfd, ext->e_type);
   in->n_sclass = H_GET_8 (abfd, ext->e_sclass);
   in->n_numaux = H_GET_8 (abfd, ext->e_numaux);
@@ -1250,15 +1250,11 @@ xcoff64_ppc_relocate_section (bfd *output_bfd,
            {
              if (info->unresolved_syms_in_objects != RM_IGNORE
                  && (h->flags & XCOFF_WAS_UNDEFINED) != 0)
-               {
-                 if (! ((*info->callbacks->undefined_symbol)
-                        (info, h->root.root.string,
-                         input_bfd, input_section,
-                         rel->r_vaddr - input_section->vma,
-                         (info->unresolved_syms_in_objects
-                          == RM_GENERATE_ERROR))))
-                   return FALSE;
-               }
+               (*info->callbacks->undefined_symbol)
+                 (info, h->root.root.string, input_bfd, input_section,
+                  rel->r_vaddr - input_section->vma,
+                  info->unresolved_syms_in_objects == RM_GENERATE_ERROR);
+
              if (h->root.type == bfd_link_hash_defined
                  || h->root.type == bfd_link_hash_defweak)
                {
@@ -1337,11 +1333,10 @@ xcoff64_ppc_relocate_section (bfd *output_bfd,
            }
          sprintf (reloc_type_name, "0x%02x", rel->r_type);
 
-         if (! ((*info->callbacks->reloc_overflow)
-                (info, (h ? &h->root : NULL), name, reloc_type_name,
-                 (bfd_vma) 0, input_bfd, input_section,
-                 rel->r_vaddr - input_section->vma)))
-           return FALSE;
+         (*info->callbacks->reloc_overflow)
+           (info, (h ? &h->root : NULL), name, reloc_type_name,
+            (bfd_vma) 0, input_bfd, input_section,
+            rel->r_vaddr - input_section->vma);
        }
 
       /* Add RELOCATION to the right bits of VALUE_TO_RELOCATE.  */
@@ -1857,6 +1852,46 @@ xcoff64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   return NULL;
 }
 
+/* PR 21786:  The PE/COFF standard does not require NUL termination for any of
+   the ASCII fields in the archive headers.  So in order to be able to extract
+   numerical values we provide our own versions of strtol and strtoll which
+   take a maximum length as an additional parameter.  Also - just to save space,
+   we omit the endptr return parameter, since we know that it is never used.  */
+
+static long
+_bfd_strntol (const char * nptr, int base, unsigned int maxlen)
+{
+  char buf[24]; /* Should be enough.  */
+
+  BFD_ASSERT (maxlen < (sizeof (buf) - 1));
+
+  memcpy (buf, nptr, maxlen);
+  buf[maxlen] = 0;
+  return strtol (buf, NULL, base);
+}
+
+static long long
+_bfd_strntoll (const char * nptr, int base, unsigned int maxlen)
+{
+  char buf[32]; /* Should be enough.  */
+
+  BFD_ASSERT (maxlen < (sizeof (buf) - 1));
+
+  memcpy (buf, nptr, maxlen);
+  buf[maxlen] = 0;
+  return strtoll (buf, NULL, base);
+}
+
+/* Macro to read an ASCII value stored in an archive header field.  */
+#define GET_VALUE_IN_FIELD(VAR, FIELD)           \
+  do                                             \
+    {                                            \
+      (VAR) = sizeof (VAR) > sizeof (long)       \
+        ? _bfd_strntoll (FIELD, 10, sizeof FIELD) \
+       : _bfd_strntol (FIELD, 10, sizeof FIELD); \
+    }                                            \
+  while (0)
+
 /* Read in the armap of an XCOFF archive.  */
 
 static bfd_boolean
@@ -1897,7 +1932,7 @@ xcoff64_slurp_armap (bfd *abfd)
     return FALSE;
 
   /* Skip the name (normally empty).  */
-  namlen = strtol (hdr.namlen, (char **) NULL, 10);
+  GET_VALUE_IN_FIELD (namlen, hdr.namlen);
   pos = ((namlen + 1) & ~(size_t) 1) + SXCOFFARFMAG;
   if (bfd_seek (abfd, pos, SEEK_CUR) != 0)
     return FALSE;
@@ -2110,7 +2145,8 @@ xcoff64_create_csect_from_smclas (bfd *abfd, union internal_auxent *aux,
     }
   else
     {
-      (*_bfd_error_handler)
+      _bfd_error_handler
+       /* xgettext: c-format */
        (_("%B: symbol `%s' has unrecognized smclas %d"),
         abfd, symbol_name, aux->x_csect.x_smclas);
       bfd_set_error (bfd_error_bad_value);
@@ -2724,6 +2760,7 @@ const bfd_target rs6000_xcoff64_vec =
     /* Reloc */
     coff_get_reloc_upper_bound,
     coff_canonicalize_reloc,
+    _bfd_generic_set_reloc,
     xcoff64_reloc_type_lookup,
     xcoff64_reloc_name_lookup,
 
@@ -2741,6 +2778,7 @@ const bfd_target rs6000_xcoff64_vec =
     _bfd_generic_copy_link_hash_symbol_type,
     _bfd_xcoff_bfd_final_link,
     _bfd_generic_link_split_section,
+    _bfd_generic_link_check_relocs,
     bfd_generic_gc_sections,
     bfd_generic_lookup_section_flags,
     bfd_generic_merge_sections,
@@ -2748,6 +2786,7 @@ const bfd_target rs6000_xcoff64_vec =
     bfd_generic_discard_group,
     _bfd_generic_section_already_linked,
     _bfd_xcoff_define_common_symbol,
+    bfd_generic_define_start_stop,
 
     /* Dynamic */
     _bfd_xcoff_get_dynamic_symtab_upper_bound,
@@ -2982,6 +3021,7 @@ const bfd_target rs6000_xcoff64_aix_vec =
     /* Reloc */
     coff_get_reloc_upper_bound,
     coff_canonicalize_reloc,
+    _bfd_generic_set_reloc,
     xcoff64_reloc_type_lookup,
     xcoff64_reloc_name_lookup,
 
@@ -2999,6 +3039,7 @@ const bfd_target rs6000_xcoff64_aix_vec =
     _bfd_generic_copy_link_hash_symbol_type,
     _bfd_xcoff_bfd_final_link,
     _bfd_generic_link_split_section,
+    _bfd_generic_link_check_relocs,
     bfd_generic_gc_sections,
     bfd_generic_lookup_section_flags,
     bfd_generic_merge_sections,
@@ -3006,6 +3047,7 @@ const bfd_target rs6000_xcoff64_aix_vec =
     bfd_generic_discard_group,
     _bfd_generic_section_already_linked,
     _bfd_xcoff_define_common_symbol,
+    bfd_generic_define_start_stop,
 
     /* Dynamic */
     _bfd_xcoff_get_dynamic_symtab_upper_bound,