Uniquefy gdb.base/catch-syscall.exp test names.
[deliverable/binutils-gdb.git] / bfd / elf32-s390.c
index 948b621e587474f409a6fd486f45b3c850a01f12..6467b03264149266ed2a138f278a89bad7dfc880 100644 (file)
@@ -40,7 +40,7 @@ static reloc_howto_type elf_howto_table[] =
 {
   HOWTO (R_390_NONE,           /* type */
         0,                     /* rightshift */
-        0,                     /* size (0 = byte, 1 = short, 2 = long) */
+        0,                     /* size (0 = byte, 1 = 2 byte, 2 = 4 byte) */
         0,                     /* bitsize */
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
@@ -161,6 +161,14 @@ static reloc_howto_type elf_howto_table[] =
        s390_elf_ldisp_reloc, "R_390_TLS_GOTIE20", FALSE, 0,0x0fffff00, FALSE),
   HOWTO(R_390_IRELATIVE, 0, 2, 32, TRUE, 0, complain_overflow_bitfield,
        bfd_elf_generic_reloc, "R_390_IRELATIVE", FALSE, 0, 0xffffffff, FALSE),
+  HOWTO(R_390_PC12DBL,   1, 1, 12,  TRUE, 0, complain_overflow_bitfield,
+       bfd_elf_generic_reloc, "R_390_PC12DBL",  FALSE, 0,0x00000fff, TRUE),
+  HOWTO(R_390_PLT12DBL,         1, 1, 12,  TRUE, 0, complain_overflow_bitfield,
+       bfd_elf_generic_reloc, "R_390_PLT12DBL", FALSE, 0,0x00000fff, TRUE),
+  HOWTO(R_390_PC24DBL,   1, 2, 24,  TRUE, 0, complain_overflow_bitfield,
+       bfd_elf_generic_reloc, "R_390_PC24DBL",  FALSE, 0,0x00ffffff, TRUE),
+  HOWTO(R_390_PLT24DBL,         1, 2, 24,  TRUE, 0, complain_overflow_bitfield,
+       bfd_elf_generic_reloc, "R_390_PLT24DBL", FALSE, 0,0x00ffffff, TRUE),
 };
 
 /* GNU extension to record C++ vtable hierarchy.  */
@@ -211,10 +219,18 @@ elf_s390_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
       return &elf_howto_table[(int) R_390_GOT16];
     case BFD_RELOC_16_PCREL:
       return &elf_howto_table[(int) R_390_PC16];
+    case BFD_RELOC_390_PC12DBL:
+      return &elf_howto_table[(int) R_390_PC12DBL];
+    case BFD_RELOC_390_PLT12DBL:
+      return &elf_howto_table[(int) R_390_PLT12DBL];
     case BFD_RELOC_390_PC16DBL:
       return &elf_howto_table[(int) R_390_PC16DBL];
     case BFD_RELOC_390_PLT16DBL:
       return &elf_howto_table[(int) R_390_PLT16DBL];
+    case BFD_RELOC_390_PC24DBL:
+      return &elf_howto_table[(int) R_390_PC24DBL];
+    case BFD_RELOC_390_PLT24DBL:
+      return &elf_howto_table[(int) R_390_PLT24DBL];
     case BFD_RELOC_390_PC32DBL:
       return &elf_howto_table[(int) R_390_PC32DBL];
     case BFD_RELOC_390_PLT32DBL:
@@ -1026,6 +1042,10 @@ elf_s390_check_relocs (bfd *abfd,
          while (h->root.type == bfd_link_hash_indirect
                 || h->root.type == bfd_link_hash_warning)
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+         /* PR15323, ref flags aren't set for references in the same
+            object.  */
+         h->root.non_ir_ref = 1;
        }
 
       /* Create got section and local_got_refcounts array if they
@@ -1103,7 +1123,9 @@ elf_s390_check_relocs (bfd *abfd,
             are done.  */
          break;
 
+       case R_390_PLT12DBL:
        case R_390_PLT16DBL:
+       case R_390_PLT24DBL:
        case R_390_PLT32DBL:
        case R_390_PLT32:
        case R_390_PLTOFF16:
@@ -1238,7 +1260,9 @@ elf_s390_check_relocs (bfd *abfd,
        case R_390_16:
        case R_390_32:
        case R_390_PC16:
+       case R_390_PC12DBL:
        case R_390_PC16DBL:
+       case R_390_PC24DBL:
        case R_390_PC32DBL:
        case R_390_PC32:
          if (h != NULL)
@@ -1283,7 +1307,9 @@ elf_s390_check_relocs (bfd *abfd,
          if ((info->shared
               && (sec->flags & SEC_ALLOC) != 0
               && ((ELF32_R_TYPE (rel->r_info) != R_390_PC16
+                   && ELF32_R_TYPE (rel->r_info) != R_390_PC12DBL
                    && ELF32_R_TYPE (rel->r_info) != R_390_PC16DBL
+                   && ELF32_R_TYPE (rel->r_info) != R_390_PC24DBL
                    && ELF32_R_TYPE (rel->r_info) != R_390_PC32DBL
                    && ELF32_R_TYPE (rel->r_info) != R_390_PC32)
                   || (h != NULL
@@ -1360,7 +1386,9 @@ elf_s390_check_relocs (bfd *abfd,
 
              p->count += 1;
              if (ELF32_R_TYPE (rel->r_info) == R_390_PC16
+                 || ELF32_R_TYPE (rel->r_info) == R_390_PC12DBL
                  || ELF32_R_TYPE (rel->r_info) == R_390_PC16DBL
+                 || ELF32_R_TYPE (rel->r_info) == R_390_PC24DBL
                  || ELF32_R_TYPE (rel->r_info) == R_390_PC32DBL
                  || ELF32_R_TYPE (rel->r_info) == R_390_PC32)
                p->pc_count += 1;
@@ -1527,14 +1555,18 @@ elf_s390_gc_sweep_hook (bfd *abfd,
        case R_390_20:
        case R_390_32:
        case R_390_PC16:
+       case R_390_PC12DBL:
        case R_390_PC16DBL:
+       case R_390_PC24DBL:
        case R_390_PC32DBL:
        case R_390_PC32:
          if (info->shared)
            break;
          /* Fall through.  */
 
+       case R_390_PLT12DBL:
        case R_390_PLT16DBL:
+       case R_390_PLT24DBL:
        case R_390_PLT32DBL:
        case R_390_PLT32:
        case R_390_PLTOFF16:
@@ -2504,6 +2536,36 @@ elf_s390_relocate_section (bfd *output_bfd,
                                  base_got->contents + off);
                      h->got.offset |= 1;
                    }
+
+                 if ((h->def_regular
+                      && info->shared
+                      && SYMBOL_REFERENCES_LOCAL (info, h))
+                     /* lrl rx,sym@GOTENT -> larl rx, sym */
+                     && ((r_type == R_390_GOTENT
+                          && (bfd_get_16 (input_bfd,
+                                          contents + rel->r_offset - 2)
+                              & 0xff0f) == 0xc40d)
+                         /* ly rx, sym@GOT(r12) -> larl rx, sym */
+                         || (r_type == R_390_GOT20
+                             && (bfd_get_32 (input_bfd,
+                                             contents + rel->r_offset - 2)
+                                 & 0xff00f000) == 0xe300c000
+                             && bfd_get_8 (input_bfd,
+                                           contents + rel->r_offset + 3) == 0x58)))
+                   {
+                     unsigned short new_insn =
+                       (0xc000 | (bfd_get_8 (input_bfd,
+                                             contents + rel->r_offset - 1) & 0xf0));
+                     bfd_put_16 (output_bfd, new_insn,
+                                 contents + rel->r_offset - 2);
+                     r_type = R_390_PC32DBL;
+                     rel->r_addend = 2;
+                     howto = elf_howto_table + r_type;
+                     relocation = h->root.u.def.value
+                       + h->root.u.def.section->output_section->vma
+                       + h->root.u.def.section->output_offset;
+                     goto do_relocation;
+                   }
                }
              else
                unresolved_reloc = FALSE;
@@ -2584,7 +2646,9 @@ elf_s390_relocate_section (bfd *output_bfd,
          unresolved_reloc = FALSE;
          break;
 
+       case R_390_PLT12DBL:
        case R_390_PLT16DBL:
+       case R_390_PLT24DBL:
        case R_390_PLT32DBL:
        case R_390_PLT32:
          /* Relocation is to the entry for this symbol in the
@@ -2647,7 +2711,9 @@ elf_s390_relocate_section (bfd *output_bfd,
        case R_390_16:
        case R_390_32:
        case R_390_PC16:
+       case R_390_PC12DBL:
        case R_390_PC16DBL:
+       case R_390_PC24DBL:
        case R_390_PC32DBL:
        case R_390_PC32:
          if (h != NULL
@@ -2719,7 +2785,9 @@ elf_s390_relocate_section (bfd *output_bfd,
                   || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
                   || h->root.type != bfd_link_hash_undefweak)
               && ((r_type != R_390_PC16
+                   && r_type != R_390_PC12DBL
                    && r_type != R_390_PC16DBL
+                   && r_type != R_390_PC24DBL
                    && r_type != R_390_PC32DBL
                    && r_type != R_390_PC32)
                   || !SYMBOL_CALLS_LOCAL (info, h)))
@@ -2760,7 +2828,9 @@ elf_s390_relocate_section (bfd *output_bfd,
              else if (h != NULL
                       && h->dynindx != -1
                       && (r_type == R_390_PC16
+                          || r_type == R_390_PC12DBL
                           || r_type == R_390_PC16DBL
+                          || r_type == R_390_PC24DBL
                           || r_type == R_390_PC32DBL
                           || r_type == R_390_PC32
                           || !info->shared
@@ -3238,6 +3308,13 @@ elf_s390_relocate_section (bfd *output_bfd,
 
     do_relocation:
 
+      /* When applying a 24 bit reloc we need to start one byte
+        earlier.  Otherwise the 32 bit get/put bfd operations might
+        access a byte after the actual section.  */
+      if (r_type == R_390_PC24DBL
+         || r_type == R_390_PLT24DBL)
+       rel->r_offset--;
+
       if (r_type == R_390_20
          || r_type == R_390_GOT20
          || r_type == R_390_GOTPLT20
@@ -3712,7 +3789,9 @@ elf_s390_finish_dynamic_symbol (bfd *output_bfd,
    dynamic linker, before writing them out.  */
 
 static enum elf_reloc_type_class
-elf_s390_reloc_type_class (const Elf_Internal_Rela *rela)
+elf_s390_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
+                          const asection *rel_sec ATTRIBUTE_UNUSED,
+                          const Elf_Internal_Rela *rela)
 {
   switch ((int) ELF32_R_TYPE (rela->r_info))
     {
@@ -3940,7 +4019,6 @@ elf32_s390_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
 #define elf_backend_relocate_section         elf_s390_relocate_section
 #define elf_backend_size_dynamic_sections     elf_s390_size_dynamic_sections
 #define elf_backend_init_index_section       _bfd_elf_init_1_index_section
-#define elf_backend_reloc_type_class         elf_s390_reloc_type_class
 #define elf_backend_grok_prstatus            elf_s390_grok_prstatus
 #define elf_backend_plt_sym_val                      elf_s390_plt_sym_val
 #define elf_backend_add_symbol_hook           elf_s390_add_symbol_hook
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