[AArch64] Add support for :tlsdesc: and TLSDESC_ADR_PREL21

[deliverable/binutils-gdb.git] / bfd / elfxx-aarch64.c

diff --git a/bfd/elfxx-aarch64.c b/bfd/elfxx-aarch64.c
index 54b69fda8590d69956991dc4666913481be9e44c..929eb648199cb41bb8485d5d94d4e1ef9a97a4a6 100644 (file)
--- a/bfd/elfxx-aarch64.c
+++ b/bfd/elfxx-aarch64.c
@@ -187,6 +187,8 @@ _bfd_aarch64_elf_put_addend (bfd *abfd,
   size = bfd_get_reloc_size (howto);
   switch (size)
     {
+    case 0:
+      return status;
     case 2:
       contents = bfd_get_16 (abfd, address);
       break;
@@ -241,6 +243,7 @@ _bfd_aarch64_elf_put_addend (bfd *abfd,
 
     case BFD_RELOC_AARCH64_LD_LO19_PCREL:
     case BFD_RELOC_AARCH64_GOT_LD_PREL19:
+    case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
       if (old_addend & ((1 << howto->rightshift) - 1))
        return bfd_reloc_overflow;
       contents = reencode_ld_lit_ofs_19 (contents, addend);
@@ -249,6 +252,8 @@ _bfd_aarch64_elf_put_addend (bfd *abfd,
     case BFD_RELOC_AARCH64_TLSDESC_CALL:
       break;
 
+    case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
+    case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
     case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
     case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
     case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
@@ -374,6 +379,9 @@ _bfd_aarch64_elf_resolve_relocation (bfd_reloc_code_real_type r_type,
     case BFD_RELOC_AARCH64_NONE:
       break;
 
+    case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
+    case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
+    case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
     case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
     case BFD_RELOC_AARCH64_BRANCH19:
     case BFD_RELOC_AARCH64_LD_LO19_PCREL:
@@ -450,7 +458,9 @@ _bfd_aarch64_elf_resolve_relocation (bfd_reloc_code_real_type r_type,
       value = (value + addend) & (bfd_vma) 0xffff0000;
       break;
     case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
-      value = (value + addend) & (bfd_vma) 0xfff000;
+      /* Mask off low 12bits, keep all other high bits, so that the later
+        generic code could check whehter there is overflow.  */
+      value = (value + addend) & ~(bfd_vma) 0xfff;
       break;
 
     case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: