xtensa: fix PR ld/25861

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

diff --git a/bfd/elf32-xtensa.c b/bfd/elf32-xtensa.c
index 473a9d76f289e077ff317540584fa0da190e699f..fded42d52a9a4bd04b56e98a23454b37e17a92d8 100644 (file)
--- a/bfd/elf32-xtensa.c
+++ b/bfd/elf32-xtensa.c
@@ -325,6 +325,20 @@ static reloc_howto_type elf_howto_table[] =
   HOWTO (R_XTENSA_TLS_CALL, 0, 0, 0, FALSE, 0, complain_overflow_dont,
         bfd_elf_xtensa_reloc, "R_XTENSA_TLS_CALL",
         FALSE, 0, 0, FALSE),
+
+  HOWTO (R_XTENSA_PDIFF8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
+        bfd_elf_xtensa_reloc, "R_XTENSA_PDIFF8", FALSE, 0, 0xff, FALSE),
+  HOWTO (R_XTENSA_PDIFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+        bfd_elf_xtensa_reloc, "R_XTENSA_PDIFF16", FALSE, 0, 0xffff, FALSE),
+  HOWTO (R_XTENSA_PDIFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+        bfd_elf_xtensa_reloc, "R_XTENSA_PDIFF32", FALSE, 0, 0xffffffff, FALSE),
+
+  HOWTO (R_XTENSA_NDIFF8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,
+        bfd_elf_xtensa_reloc, "R_XTENSA_NDIFF8", FALSE, 0, 0xff, FALSE),
+  HOWTO (R_XTENSA_NDIFF16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,
+        bfd_elf_xtensa_reloc, "R_XTENSA_NDIFF16", FALSE, 0, 0xffff, FALSE),
+  HOWTO (R_XTENSA_NDIFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+        bfd_elf_xtensa_reloc, "R_XTENSA_NDIFF32", FALSE, 0, 0xffffffff, FALSE),
 };
 
 #if DEBUG_GEN_RELOC
@@ -364,6 +378,30 @@ elf_xtensa_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
       TRACE ("BFD_RELOC_XTENSA_DIFF32");
       return &elf_howto_table[(unsigned) R_XTENSA_DIFF32 ];
 
+    case BFD_RELOC_XTENSA_PDIFF8:
+      TRACE ("BFD_RELOC_XTENSA_PDIFF8");
+      return &elf_howto_table[(unsigned) R_XTENSA_PDIFF8 ];
+
+    case BFD_RELOC_XTENSA_PDIFF16:
+      TRACE ("BFD_RELOC_XTENSA_PDIFF16");
+      return &elf_howto_table[(unsigned) R_XTENSA_PDIFF16 ];
+
+    case BFD_RELOC_XTENSA_PDIFF32:
+      TRACE ("BFD_RELOC_XTENSA_PDIFF32");
+      return &elf_howto_table[(unsigned) R_XTENSA_PDIFF32 ];
+
+    case BFD_RELOC_XTENSA_NDIFF8:
+      TRACE ("BFD_RELOC_XTENSA_NDIFF8");
+      return &elf_howto_table[(unsigned) R_XTENSA_NDIFF8 ];
+
+    case BFD_RELOC_XTENSA_NDIFF16:
+      TRACE ("BFD_RELOC_XTENSA_NDIFF16");
+      return &elf_howto_table[(unsigned) R_XTENSA_NDIFF16 ];
+
+    case BFD_RELOC_XTENSA_NDIFF32:
+      TRACE ("BFD_RELOC_XTENSA_NDIFF32");
+      return &elf_howto_table[(unsigned) R_XTENSA_NDIFF32 ];
+
     case BFD_RELOC_XTENSA_RTLD:
       TRACE ("BFD_RELOC_XTENSA_RTLD");
       return &elf_howto_table[(unsigned) R_XTENSA_RTLD ];
@@ -1851,6 +1889,12 @@ elf_xtensa_do_reloc (reloc_howto_type *howto,
     case R_XTENSA_DIFF8:
     case R_XTENSA_DIFF16:
     case R_XTENSA_DIFF32:
+    case R_XTENSA_PDIFF8:
+    case R_XTENSA_PDIFF16:
+    case R_XTENSA_PDIFF32:
+    case R_XTENSA_NDIFF8:
+    case R_XTENSA_NDIFF16:
+    case R_XTENSA_NDIFF32:
     case R_XTENSA_TLS_FUNC:
     case R_XTENSA_TLS_ARG:
     case R_XTENSA_TLS_CALL:
@@ -9604,7 +9648,13 @@ relax_section (bfd *abfd, asection *sec, struct bfd_link_info *link_info)
 
              if (r_type == R_XTENSA_DIFF8
                  || r_type == R_XTENSA_DIFF16
-                 || r_type == R_XTENSA_DIFF32)
+                 || r_type == R_XTENSA_DIFF32
+                 || r_type == R_XTENSA_PDIFF8
+                 || r_type == R_XTENSA_PDIFF16
+                 || r_type == R_XTENSA_PDIFF32
+                 || r_type == R_XTENSA_NDIFF8
+                 || r_type == R_XTENSA_NDIFF16
+                 || r_type == R_XTENSA_NDIFF32)
                {
                  bfd_signed_vma diff_value = 0;
                  bfd_vma new_end_offset, diff_mask = 0;
@@ -9631,8 +9681,27 @@ relax_section (bfd *abfd, asection *sec, struct bfd_link_info *link_info)
                      diff_value =
                        bfd_get_signed_32 (abfd, &contents[old_source_offset]);
                      break;
+                   case R_XTENSA_PDIFF8:
+                   case R_XTENSA_NDIFF8:
+                     diff_value =
+                       bfd_get_8 (abfd, &contents[old_source_offset]);
+                     break;
+                   case R_XTENSA_PDIFF16:
+                   case R_XTENSA_NDIFF16:
+                     diff_value =
+                       bfd_get_16 (abfd, &contents[old_source_offset]);
+                     break;
+                   case R_XTENSA_PDIFF32:
+                   case R_XTENSA_NDIFF32:
+                     diff_value =
+                       bfd_get_32 (abfd, &contents[old_source_offset]);
+                     break;
                    }
 
+                 if (r_type >= R_XTENSA_NDIFF8
+                     && r_type <= R_XTENSA_NDIFF32)
+                   diff_value = -diff_value;
+
                  new_end_offset = offset_with_removed_text_map
                    (&target_relax_info->action_list,
                     r_rel.target_offset + diff_value);
@@ -9655,6 +9724,24 @@ relax_section (bfd *abfd, asection *sec, struct bfd_link_info *link_info)
                      bfd_put_signed_32 (abfd, diff_value,
                                  &contents[old_source_offset]);
                      break;
+                   case R_XTENSA_PDIFF8:
+                   case R_XTENSA_NDIFF8:
+                     diff_mask = 0xff;
+                     bfd_put_8 (abfd, diff_value,
+                                &contents[old_source_offset]);
+                     break;
+                   case R_XTENSA_PDIFF16:
+                   case R_XTENSA_NDIFF16:
+                     diff_mask = 0xffff;
+                     bfd_put_16 (abfd, diff_value,
+                                 &contents[old_source_offset]);
+                     break;
+                   case R_XTENSA_PDIFF32:
+                   case R_XTENSA_NDIFF32:
+                     diff_mask = 0xffffffff;
+                     bfd_put_32 (abfd, diff_value,
+                                 &contents[old_source_offset]);
+                     break;
                    }
 
                  /* Check for overflow. Sign bits must be all zeroes or all ones */