* elf-m10300.c (mn10300_elf_check_relocs): Delete dead code.

[deliverable/binutils-gdb.git] / bfd / elf32-m68k.c

diff --git a/bfd/elf32-m68k.c b/bfd/elf32-m68k.c
index 948a9960f055725a8a94fe06ee4bc909a2d17e27..57431c991222ee9b5e8eb4a603dbc0c8100721e7 100644 (file)
--- a/bfd/elf32-m68k.c
+++ b/bfd/elf32-m68k.c
@@ -6,7 +6,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -16,10 +16,11 @@
 
    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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 "elf-bfd.h"
@@ -300,6 +301,40 @@ static const struct elf_m68k_plt_info elf_isab_plt_info = {
   elf_isab_plt_entry, { 2, 20 }, 12
 };
 
+#define ISAC_PLT_ENTRY_SIZE 24 
+
+static const bfd_byte elf_isac_plt0_entry[ISAC_PLT_ENTRY_SIZE] =
+{
+  0x20, 0x3c,            /* move.l #offset,%d0 */
+  0, 0, 0, 0,            /* replaced with .got + 4 - . */
+  0x2e, 0xbb, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),(%sp) */
+  0x20, 0x3c,            /* move.l #offset,%d0 */
+  0, 0, 0, 0,            /* replaced with .got + 8 - . */
+  0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
+  0x4e, 0xd0,            /* jmp (%a0) */
+  0x4e, 0x71             /* nop */
+};
+
+/* Subsequent entries in a procedure linkage table look like this.  */
+
+static const bfd_byte elf_isac_plt_entry[ISAC_PLT_ENTRY_SIZE] =
+{
+  0x20, 0x3c,            /* move.l #offset,%d0 */
+  0, 0, 0, 0,            /* replaced with (.got entry) - . */
+  0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
+  0x4e, 0xd0,            /* jmp (%a0) */
+  0x2f, 0x3c,            /* move.l #offset,-(%sp) */
+  0, 0, 0, 0,            /* replaced with offset into relocation table */
+  0x61, 0xff,            /* bsr.l .plt */
+  0, 0, 0, 0             /* replaced with .plt - . */
+};
+
+static const struct elf_m68k_plt_info elf_isac_plt_info = {
+  ISAC_PLT_ENTRY_SIZE,
+  elf_isac_plt0_entry, { 2, 12},
+  elf_isac_plt_entry, { 2, 20 }, 12
+};
+
 #define CPU32_PLT_ENTRY_SIZE 24
 /* Procedure linkage table entries for the cpu32 */
 static const bfd_byte elf_cpu32_plt0_entry[CPU32_PLT_ENTRY_SIZE] =
@@ -468,6 +503,12 @@ elf32_m68k_object_p (bfd *abfd)
        case EF_M68K_CF_ISA_B:
          features |= mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp;
          break;
+       case EF_M68K_CF_ISA_C:
+         features |= mcfisa_a|mcfisa_c|mcfhwdiv|mcfusp;
+         break;
+       case EF_M68K_CF_ISA_C_NODIV:
+         features |= mcfisa_a|mcfisa_c|mcfusp;
+         break;
        }
       switch (eflags & EF_M68K_CF_MAC_MASK)
        {
@@ -617,6 +658,13 @@ elf32_m68k_print_private_bfd_data (abfd, ptr)
            case EF_M68K_CF_ISA_B:
              isa = "B";
              break;
+           case EF_M68K_CF_ISA_C:
+             isa = "C";
+             break;
+           case EF_M68K_CF_ISA_C_NODIV:
+             isa = "C";
+             additional = " [nodiv]";
+             break;
            }
          fprintf (file, " [isa %s]%s", isa, additional);
          if (eflags & EF_M68K_CF_FLOAT)
@@ -994,7 +1042,9 @@ elf_m68k_check_relocs (abfd, info, sec, relocs)
          /* This relocation describes which C++ vtable entries are actually
             used.  Record for later use during GC.  */
        case R_68K_GNU_VTENTRY:
-         if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+         BFD_ASSERT (h != NULL);
+         if (h != NULL
+             && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
            return FALSE;
          break;
 
@@ -1145,6 +1195,8 @@ elf_m68k_get_plt_info (bfd *output_bfd)
     return &elf_cpu32_plt_info;
   if (features & mcfisa_b)
     return &elf_isab_plt_info;
+  if (features & mcfisa_c)
+    return &elf_isac_plt_info;
   return &elf_m68k_plt_info;
 }
 
@@ -1173,7 +1225,6 @@ elf_m68k_adjust_dynamic_symbol (info, h)
   struct elf_m68k_link_hash_table *htab;
   bfd *dynobj;
   asection *s;
-  unsigned int power_of_two;
 
   htab = elf_m68k_hash_table (info);
   dynobj = elf_hash_table (info)->dynobj;
@@ -1318,28 +1369,7 @@ elf_m68k_adjust_dynamic_symbol (info, h)
       h->needs_copy = 1;
     }
 
-  /* We need to figure out the alignment required for this symbol.  I
-     have no idea how ELF linkers handle this.  */
-  power_of_two = bfd_log2 (h->size);
-  if (power_of_two > 3)
-    power_of_two = 3;
-
-  /* Apply the required alignment.  */
-  s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
-  if (power_of_two > bfd_get_section_alignment (dynobj, s))
-    {
-      if (!bfd_set_section_alignment (dynobj, s, power_of_two))
-       return FALSE;
-    }
-
-  /* Define the symbol as being at this point in the section.  */
-  h->root.u.def.section = s;
-  h->root.u.def.value = s->size;
-
-  /* Increment the section size to make room for the symbol.  */
-  s->size += h->size;
-
-  return TRUE;
+  return _bfd_elf_adjust_dynamic_copy (h, s);
 }
 
 /* Set the sizes of the dynamic sections.  */