Power10 VSX 32-byte storage access

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

diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 53e5d913e5de0fda63d51b31a9e0739eba4a4d71..da4a8c7377741a51f169a16158490b271214a70c 100644 (file)
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -2914,7 +2914,7 @@ must_be_dyn_reloc (struct bfd_link_info *info,
    .   mtctr   %r12
    .   bctr
 
-   There are also ELFv1 powerxx variants of these stubs.
+   There are also ELFv1 power10 variants of these stubs.
    ppc_stub_long_branch_notoc:
    .   pla     %r12,dest@pcrel
    .   b       dest
@@ -2937,7 +2937,7 @@ must_be_dyn_reloc (struct bfd_link_info *info,
 
    In cases where the high instructions would add zero, they are
    omitted and following instructions modified in some cases.
-   For example, a powerxx ppc_stub_plt_call_notoc might simplify down
+   For example, a power10 ppc_stub_plt_call_notoc might simplify down
    to
    .   pld     %r12,xxx@pcrel
    .   mtctr   %r12
@@ -3238,8 +3238,8 @@ struct ppc_link_hash_table
   /* Whether calls are made via the PLT from NOTOC functions.  */
   unsigned int notoc_plt:1;
 
-  /* Whether to use powerxx instructions in linkage stubs.  */
-  unsigned int powerxx_stubs:1;
+  /* Whether to use power10 instructions in linkage stubs.  */
+  unsigned int power10_stubs:1;
 
   /* Incremented every time we size stubs.  */
   unsigned int stub_iteration;
@@ -4604,7 +4604,7 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
        case R_PPC64_PLT_PCREL34:
        case R_PPC64_PLT_PCREL34_NOTOC:
        case R_PPC64_PCREL28:
-         htab->powerxx_stubs = 1;
+         htab->power10_stubs = 1;
          break;
        default:
          break;
@@ -8605,6 +8605,15 @@ xlate_pcrel_opt (uint64_t *pinsn1, uint64_t *pinsn2, bfd_signed_vma *poff)
       off = insn2 & 0xffff;
       break;
 
+    case 6: /* lxvp, stxvp */
+      if ((insn2 & 0xe) != 0)
+       return FALSE;
+      insn1 = ((1ULL << 58) | (1ULL << 52)
+              | ((insn2 & 1) == 0 ? 58ULL << 26 : 62ULL << 26)
+              | (insn2 & (31ULL << 21)));
+      off = insn2 & 0xfff0;
+      break;
+
     case 62: /* std, stq */
       if ((insn2 & 1) != 0)
        return FALSE;
@@ -10597,7 +10606,7 @@ emit_relocs_for_offset (struct bfd_link_info *info, Elf_Internal_Rela *r,
 }
 
 static bfd_byte *
-build_powerxx_offset (bfd *abfd, bfd_byte *p, bfd_vma off, int odd,
+build_power10_offset (bfd *abfd, bfd_byte *p, bfd_vma off, int odd,
                      bfd_boolean load)
 {
   uint64_t insn;
@@ -10679,7 +10688,7 @@ build_powerxx_offset (bfd *abfd, bfd_byte *p, bfd_vma off, int odd,
 }
 
 static unsigned int
-size_powerxx_offset (bfd_vma off, int odd)
+size_power10_offset (bfd_vma off, int odd)
 {
   if (off - odd + (1ULL << 33) < 1ULL << 34)
     return odd + 8;
@@ -10690,7 +10699,7 @@ size_powerxx_offset (bfd_vma off, int odd)
 }
 
 static unsigned int
-num_relocs_for_powerxx_offset (bfd_vma off, int odd)
+num_relocs_for_power10_offset (bfd_vma off, int odd)
 {
   if (off - odd + (1ULL << 33) < 1ULL << 34)
     return 1;
@@ -10701,7 +10710,7 @@ num_relocs_for_powerxx_offset (bfd_vma off, int odd)
 }
 
 static Elf_Internal_Rela *
-emit_relocs_for_powerxx_offset (struct bfd_link_info *info,
+emit_relocs_for_power10_offset (struct bfd_link_info *info,
                                Elf_Internal_Rela *r, bfd_vma roff,
                                bfd_vma targ, bfd_vma off, int odd)
 {
@@ -10813,14 +10822,14 @@ plt_stub_size (struct ppc_link_hash_table *htab,
 
   if (stub_entry->stub_type >= ppc_stub_plt_call_notoc)
     {
-      if (htab->powerxx_stubs)
+      if (htab->power10_stubs)
        {
          bfd_vma start = (stub_entry->stub_offset
                           + stub_entry->group->stub_sec->output_offset
                           + stub_entry->group->stub_sec->output_section->vma);
          if (stub_entry->stub_type > ppc_stub_plt_call_notoc)
            start += 4;
-         size = 8 + size_powerxx_offset (off, start & 4);
+         size = 8 + size_power10_offset (off, start & 4);
        }
       else
        size = 8 + size_offset (off - 8);
@@ -11654,10 +11663,10 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
 
       relp = p;
       num_rel = 0;
-      if (htab->powerxx_stubs)
+      if (htab->power10_stubs)
        {
          bfd_boolean load = stub_entry->stub_type >= ppc_stub_plt_call_notoc;
-         p = build_powerxx_offset (htab->params->stub_bfd, p, off, odd, load);
+         p = build_power10_offset (htab->params->stub_bfd, p, off, odd, load);
        }
       else
        {
@@ -11693,8 +11702,8 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
       if (info->emitrelocations)
        {
          bfd_vma roff = relp - stub_entry->group->stub_sec->contents;
-         if (htab->powerxx_stubs)
-           num_rel += num_relocs_for_powerxx_offset (off, odd);
+         if (htab->power10_stubs)
+           num_rel += num_relocs_for_power10_offset (off, odd);
          else
            {
              num_rel += num_relocs_for_offset (off);
@@ -11703,8 +11712,8 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
          r = get_relocs (stub_entry->group->stub_sec, num_rel);
          if (r == NULL)
            return FALSE;
-         if (htab->powerxx_stubs)
-           r = emit_relocs_for_powerxx_offset (info, r, roff, targ, off, odd);
+         if (htab->power10_stubs)
+           r = emit_relocs_for_power10_offset (info, r, roff, targ, off, odd);
          else
            r = emit_relocs_for_offset (info, r, roff, targ, off);
          if (stub_entry->stub_type == ppc_stub_long_branch_notoc
@@ -11721,7 +11730,7 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
            }
        }
 
-      if (!htab->powerxx_stubs
+      if (!htab->power10_stubs
          && htab->glink_eh_frame != NULL
          && htab->glink_eh_frame->size != 0)
        {
@@ -12069,16 +12078,16 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
       if (info->emitrelocations)
        {
          unsigned int num_rel;
-         if (htab->powerxx_stubs)
-           num_rel = num_relocs_for_powerxx_offset (off, odd);
+         if (htab->power10_stubs)
+           num_rel = num_relocs_for_power10_offset (off, odd);
          else
            num_rel = num_relocs_for_offset (off - 8);
          stub_entry->group->stub_sec->reloc_count += num_rel;
          stub_entry->group->stub_sec->flags |= SEC_RELOC;
        }
 
-      if (htab->powerxx_stubs)
-       extra = size_powerxx_offset (off, odd);
+      if (htab->power10_stubs)
+       extra = size_power10_offset (off, odd);
       else
        extra = size_offset (off - 8);
       /* Include branch insn plus those in the offset sequence.  */
@@ -12088,7 +12097,7 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
         calculated.  */
       off -= extra;
 
-      if (!htab->powerxx_stubs)
+      if (!htab->power10_stubs)
        {
          /* After the bcl, lr has been modified so we need to emit
             .eh_frame info saying the return address is in r12.  */
@@ -12151,8 +12160,8 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
       if (info->emitrelocations)
        {
          unsigned int num_rel;
-         if (htab->powerxx_stubs)
-           num_rel = num_relocs_for_powerxx_offset (off, odd);
+         if (htab->power10_stubs)
+           num_rel = num_relocs_for_power10_offset (off, odd);
          else
            num_rel = num_relocs_for_offset (off - 8);
          stub_entry->group->stub_sec->reloc_count += num_rel;
@@ -12161,7 +12170,7 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
 
       size = plt_stub_size (htab, stub_entry, off);
 
-      if (!htab->powerxx_stubs)
+      if (!htab->power10_stubs)
        {
          /* After the bcl, lr has been modified so we need to emit
             .eh_frame info saying the return address is in r12.  */