2002-06-07 Chris Demetriou <cgd@broadcom.com>

[deliverable/binutils-gdb.git] / bfd / elf64-s390.c

diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c
index 210e152b05826c3603ba7b8b05a41a8f4a544032..abbd4cce78122a2b274ef0a513adbd41eada3092 100644 (file)
--- a/bfd/elf64-s390.c
+++ b/bfd/elf64-s390.c
@@ -1,5 +1,5 @@
 /* IBM S/390-specific support for 64-bit ELF
-   Copyright 2000, 2001 Free Software Foundation, Inc.
+   Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
    Contributed Martin Schwidefsky (schwidefsky@de.ibm.com).
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -424,13 +424,13 @@ elf_s390_link_hash_table_create (abfd)
   struct elf_s390_link_hash_table *ret;
   bfd_size_type amt = sizeof (struct elf_s390_link_hash_table);
 
-  ret = (struct elf_s390_link_hash_table *) bfd_alloc (abfd, amt);
+  ret = (struct elf_s390_link_hash_table *) bfd_malloc (amt);
   if (ret == NULL)
     return NULL;
 
   if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc))
     {
-      bfd_release (abfd, ret);
+      free (ret);
       return NULL;
     }
 
@@ -1019,7 +1019,7 @@ elf_s390_adjust_dynamic_symbol (info, h)
 
   /* If this is a function, put it in the procedure linkage table.  We
      will fill in the contents of the procedure linkage table later
-     (although we could actually do it here). */
+     (although we could actually do it here).  */
   if (h->type == STT_FUNC
       || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
     {
@@ -1169,10 +1169,12 @@ allocate_dynrelocs (h, inf)
   struct elf_s390_link_hash_entry *eh;
   struct elf_s390_dyn_relocs *p;
 
-  if (h->root.type == bfd_link_hash_indirect
-      || h->root.type == bfd_link_hash_warning)
+  if (h->root.type == bfd_link_hash_indirect)
     return true;
 
+  if (h->root.type == bfd_link_hash_warning)
+    h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
   info = (struct bfd_link_info *) inf;
   htab = elf_s390_hash_table (info);
 
@@ -1339,6 +1341,9 @@ readonly_dynrelocs (h, inf)
   struct elf_s390_link_hash_entry *eh;
   struct elf_s390_dyn_relocs *p;
 
+  if (h->root.type == bfd_link_hash_warning)
+    h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
   eh = (struct elf_s390_link_hash_entry *) h;
   for (p = eh->dyn_relocs; p != NULL; p = p->next)
     {
@@ -1418,10 +1423,12 @@ elf_s390_size_dynamic_sections (output_bfd, info)
                     linker script /DISCARD/, so we'll be discarding
                     the relocs too.  */
                }
-             else
+             else if (p->count != 0)
                {
                  srela = elf_section_data (p->sec)->sreloc;
                  srela->_raw_size += p->count * sizeof (Elf64_External_Rela);
+                 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+                   info->flags |= DF_TEXTREL;
                }
            }
        }
@@ -1543,7 +1550,9 @@ elf_s390_size_dynamic_sections (output_bfd, info)
 
          /* If any dynamic relocs apply to a read-only section,
             then we need a DT_TEXTREL entry.  */
-         elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, (PTR) info);
+         if ((info->flags & DF_TEXTREL) == 0)
+           elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
+                                   (PTR) info);
 
          if ((info->flags & DF_TEXTREL) != 0)
            {
@@ -1578,6 +1587,9 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
   Elf_Internal_Rela *rel;
   Elf_Internal_Rela *relend;
 
+  if (info->relocateable)
+    return true;
+
   htab = elf_s390_hash_table (info);
   symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
   sym_hashes = elf_sym_hashes (input_bfd);
@@ -1607,30 +1619,9 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
          bfd_set_error (bfd_error_bad_value);
          return false;
        }
-      howto = elf_howto_table + r_type;
 
+      howto = elf_howto_table + r_type;
       r_symndx = ELF64_R_SYM (rel->r_info);
-
-      if (info->relocateable)
-       {
-         /* This is a relocateable link.  We don't have to change
-            anything, unless the reloc is against a section symbol,
-            in which case we have to adjust according to where the
-            section symbol winds up in the output section.  */
-         if (r_symndx < symtab_hdr->sh_info)
-           {
-             sym = local_syms + r_symndx;
-             if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
-               {
-                 sec = local_sections[r_symndx];
-                 rel->r_addend += sec->output_offset + sym->st_value;
-               }
-           }
-
-         continue;
-       }
-
-      /* This is a final link.  */
       h = NULL;
       sym = NULL;
       sec = NULL;
@@ -1886,21 +1877,21 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
                  time.  */
 
               skip = false;
+              relocate = false;
 
              outrel.r_offset =
                _bfd_elf_section_offset (output_bfd, info, input_section,
                                         rel->r_offset);
              if (outrel.r_offset == (bfd_vma) -1)
                skip = true;
+             else if (outrel.r_offset == (bfd_vma) -2)
+               skip = true, relocate = true;
 
               outrel.r_offset += (input_section->output_section->vma
                                   + input_section->output_offset);
 
               if (skip)
-                {
-                  memset (&outrel, 0, sizeof outrel);
-                  relocate = false;
-                }
+               memset (&outrel, 0, sizeof outrel);
               else if (h != NULL
                       && h->dynindx != -1
                       && (r_type == R_390_PC16
@@ -1913,7 +1904,6 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
                           || (h->elf_link_hash_flags
                               & ELF_LINK_HASH_DEF_REGULAR) == 0))
                 {
-                 relocate = false;
                   outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
                  outrel.r_addend = rel->r_addend;
                 }
@@ -2322,7 +2312,7 @@ static boolean
 elf_s390_object_p (abfd)
      bfd *abfd;
 {
-  return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_esame);
+  return bfd_default_set_arch_mach (abfd, bfd_arch_s390, bfd_mach_s390_64);
 }
 
 /*
@@ -2349,6 +2339,7 @@ const struct elf_size_info s390_elf64_size_info =
   bfd_elf64_write_out_phdrs,
   bfd_elf64_write_shdrs_and_ehdr,
   bfd_elf64_write_relocs,
+  bfd_elf64_swap_symbol_in,
   bfd_elf64_swap_symbol_out,
   bfd_elf64_slurp_reloc_table,
   bfd_elf64_slurp_symbol_table,
@@ -2376,6 +2367,7 @@ const struct elf_size_info s390_elf64_size_info =
 #define elf_backend_want_plt_sym       0
 #define elf_backend_got_header_size    24
 #define elf_backend_plt_header_size    PLT_ENTRY_SIZE
+#define elf_backend_rela_normal                1
 
 #define elf_info_to_howto              elf_s390_info_to_howto