[AArch64] Add support for :tlsdesc: and TLSDESC_LD_PREL19

[deliverable/binutils-gdb.git] / bfd / reloc.c

diff --git a/bfd/reloc.c b/bfd/reloc.c
index dedfb6a4f984ef03fa05eae5bf82ce4dcca680d1..8c4a88a33e2e9376db0aced6de46492c36f017eb 100644 (file)
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -1,5 +1,5 @@
 /* BFD support for handling relocation entries.
-   Copyright (C) 1990-2014 Free Software Foundation, Inc.
+   Copyright (C) 1990-2015 Free Software Foundation, Inc.
    Written by Cygnus Support.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -437,6 +437,7 @@ bfd_get_reloc_size (reloc_howto_type *howto)
     case 3: return 0;
     case 4: return 8;
     case 8: return 16;
+    case -1: return 2;
     case -2: return 4;
     default: abort ();
     }
@@ -578,7 +579,7 @@ bfd_perform_relocation (bfd *abfd,
 {
   bfd_vma relocation;
   bfd_reloc_status_type flag = bfd_reloc_ok;
-  bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+  bfd_size_type octets;
   bfd_vma output_base = 0;
   reloc_howto_type *howto = reloc_entry->howto;
   asection *reloc_target_output_section;
@@ -592,6 +593,10 @@ bfd_perform_relocation (bfd *abfd,
       return bfd_reloc_ok;
     }
 
+  /* PR 17512: file: 0f67f69d.  */
+  if (howto == NULL)
+    return bfd_reloc_undefined;
+
   /* If we are not producing relocatable output, return an error if
      the symbol is not defined.  An undefined weak symbol is
      considered to have a value of zero (SVR4 ABI, p. 4-27).  */
@@ -613,8 +618,12 @@ bfd_perform_relocation (bfd *abfd,
        return cont;
     }
 
-  /* Is the address of the relocation really within the section?  */
-  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+  /* Is the address of the relocation really within the section?
+     Include the size of the reloc in the test for out of range addresses.
+     PR 17512: file: c146ab8b, 46dff27f, 38e53ebf.  */
+  octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+  if (octets + bfd_get_reloc_size (howto)
+      > bfd_get_section_limit_octets (abfd, input_section))
     return bfd_reloc_outofrange;
 
   /* Work out which section the relocation is targeted at and the
@@ -964,7 +973,7 @@ bfd_install_relocation (bfd *abfd,
 {
   bfd_vma relocation;
   bfd_reloc_status_type flag = bfd_reloc_ok;
-  bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+  bfd_size_type octets;
   bfd_vma output_base = 0;
   reloc_howto_type *howto = reloc_entry->howto;
   asection *reloc_target_output_section;
@@ -997,7 +1006,9 @@ bfd_install_relocation (bfd *abfd,
     }
 
   /* Is the address of the relocation really within the section?  */
-  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+  octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+  if (octets + bfd_get_reloc_size (howto)
+      > bfd_get_section_limit_octets (abfd, input_section))
     return bfd_reloc_outofrange;
 
   /* Work out which section the relocation is targeted at and the
@@ -1332,9 +1343,11 @@ _bfd_final_link_relocate (reloc_howto_type *howto,
                          bfd_vma addend)
 {
   bfd_vma relocation;
+  bfd_size_type octets = address * bfd_octets_per_byte (input_bfd);
 
   /* Sanity check the address.  */
-  if (address > bfd_get_section_limit (input_bfd, input_section))
+  if (octets + bfd_get_reloc_size (howto)
+      > bfd_get_section_limit_octets (input_bfd, input_section))
     return bfd_reloc_outofrange;
 
   /* This function assumes that we are dealing with a basic relocation
@@ -1389,8 +1402,9 @@ _bfd_relocate_contents (reloc_howto_type *howto,
   switch (size)
     {
     default:
-    case 0:
       abort ();
+    case 0:
+      return bfd_reloc_ok;
     case 1:
       x = bfd_get_8 (input_bfd, location);
       break;
@@ -1557,8 +1571,9 @@ _bfd_clear_contents (reloc_howto_type *howto,
   switch (size)
     {
     default:
-    case 0:
       abort ();
+    case 0:
+      return;
     case 1:
       x = bfd_get_8 (input_bfd, location);
       break;
@@ -2440,6 +2455,18 @@ ENUMDOC
   Moxie ELF relocations.
 COMMENT
 
+ENUM
+  BFD_RELOC_FT32_10
+ENUMX
+  BFD_RELOC_FT32_20
+ENUMX
+  BFD_RELOC_FT32_17
+ENUMX
+  BFD_RELOC_FT32_18
+ENUMDOC
+  FT32 ELF relocations.
+COMMENT
+
 ENUM
   BFD_RELOC_FRV_LABEL16
 ENUMX
@@ -6741,6 +6768,10 @@ ENUMDOC
   tls_index structure as part of an adrp instruction using a 21 bit PC
   relative value.  Used in conjunction with
   BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC.
+ENUM
+  BFD_RELOC_AARCH64_TLSGD_ADR_PREL21
+ENUMDOC
+  AArch64 TLS General Dynamic
 ENUM
   BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC
 ENUMDOC
@@ -7297,6 +7328,7 @@ ENUMX
   BFD_RELOC_TILEGX_IMM8_Y1_TLS_ADD
 ENUMDOC
   Tilera TILE-Gx Relocations.
+
 ENUM
   BFD_RELOC_EPIPHANY_SIMM8
 ENUMDOC
@@ -7326,6 +7358,22 @@ ENUM
 ENUMDOC
   Adapteva EPIPHANY - 8 bit immediate for 16 bit mov instruction.
 
+ENUM
+  BFD_RELOC_VISIUM_HI16
+ENUMX
+  BFD_RELOC_VISIUM_LO16
+ENUMX
+  BFD_RELOC_VISIUM_IM16
+ENUMX
+  BFD_RELOC_VISIUM_REL16
+ENUMX
+  BFD_RELOC_VISIUM_HI16_PCREL
+ENUMX
+  BFD_RELOC_VISIUM_LO16_PCREL
+ENUMX
+  BFD_RELOC_VISIUM_IM16_PCREL
+ENUMDOC
+  Visium Relocations.
 
 ENDSENUM
   BFD_RELOC_UNUSED
@@ -7665,7 +7713,11 @@ bfd_generic_get_relocated_section_contents (bfd *abfd,
                  goto error_return;
 
                default:
-                 abort ();
+                 /* PR 17512; file: 90c2a92e.
+                    Report unexpected results, without aborting.  */
+                 link_info->callbacks->einfo
+                   (_("%X%P: %B(%A): relocation \"%R\" returns an unrecognized value %x\n"),
+                    abfd, input_section, * parent, r);
                  break;
                }