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[platform/upstream/binutils.git] / bfd / elf64-x86-64.c

diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index f71291e..3881f60 100644 (file)
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -1629,11 +1629,16 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
 
            case R_X86_64_PC32_BND:
            case R_X86_64_PLT32_BND:
+           case R_X86_64_PC32:
+           case R_X86_64_PLT32:
+           case R_X86_64_32:
+           case R_X86_64_64:
              /* MPX PLT is supported only if elf_x86_64_arch_bed
                 is used in 64-bit mode.  */
              if (ABI_64_P (abfd)
-                 && (get_elf_x86_64_backend_data (abfd)
-                     == &elf_x86_64_arch_bed))
+                     && info->bndplt
+                     && (get_elf_x86_64_backend_data (abfd)
+                         == &elf_x86_64_arch_bed))
                {
                  elf_x86_64_hash_entry (h)->has_bnd_reloc = TRUE;
 
@@ -1675,11 +1680,7 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
                }
 
            case R_X86_64_32S:
-           case R_X86_64_32:
-           case R_X86_64_64:
-           case R_X86_64_PC32:
            case R_X86_64_PC64:
-           case R_X86_64_PLT32:
            case R_X86_64_GOTPCREL:
            case R_X86_64_GOTPCREL64:
              if (htab->elf.dynobj == NULL)
@@ -2777,7 +2778,7 @@ elf_x86_64_convert_mov_to_lea (bfd *abfd, asection *sec,
   /* Nothing to do if there are no codes, no relocations or no output.  */
   if ((sec->flags & (SEC_CODE | SEC_RELOC)) != (SEC_CODE | SEC_RELOC)
       || sec->reloc_count == 0
-      || discarded_section (sec))
+      || bfd_is_abs_section (sec->output_section))
     return TRUE;
 
   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
@@ -4281,17 +4282,27 @@ direct:
              else if (ELF32_R_TYPE (rel->r_info) == R_X86_64_GOTTPOFF)
                {
                  /* IE->LE transition:
-                    Originally it can be one of:
+                    For 64bit, originally it can be one of:
                     movq foo@gottpoff(%rip), %reg
                     addq foo@gottpoff(%rip), %reg
                     We change it into:
                     movq $foo, %reg
                     leaq foo(%reg), %reg
-                    addq $foo, %reg.  */
+                    addq $foo, %reg.
+                    For 32bit, originally it can be one of:
+                    movq foo@gottpoff(%rip), %reg
+                    addl foo@gottpoff(%rip), %reg
+                    We change it into:
+                    movq $foo, %reg
+                    leal foo(%reg), %reg
+                    addl $foo, %reg. */
 
                  unsigned int val, type, reg;
 
-                 val = bfd_get_8 (input_bfd, contents + roff - 3);
+                 if (roff >= 3)
+                   val = bfd_get_8 (input_bfd, contents + roff - 3);
+                 else
+                   val = 0;
                  type = bfd_get_8 (input_bfd, contents + roff - 2);
                  reg = bfd_get_8 (input_bfd, contents + roff - 1);
                  reg >>= 3;
@@ -4311,8 +4322,8 @@ direct:
                    }
                  else if (reg == 4)
                    {
-                     /* addq -> addq - addressing with %rsp/%r12 is
-                        special  */
+                     /* addq/addl -> addq/addl - addressing with %rsp/%r12
+                        is special  */
                      if (val == 0x4c)
                        bfd_put_8 (output_bfd, 0x49,
                                   contents + roff - 3);
@@ -4326,7 +4337,7 @@ direct:
                    }
                  else
                    {
-                     /* addq -> leaq */
+                     /* addq/addl -> leaq/leal */
                      if (val == 0x4c)
                        bfd_put_8 (output_bfd, 0x4d,
                                   contents + roff - 3);
@@ -5539,9 +5550,10 @@ elf_x86_64_add_symbol_hook (bfd *abfd,
       return TRUE;
     }
 
-  if ((abfd->flags & DYNAMIC) == 0
-      && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
-         || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
+  if ((ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
+       || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE)
+      && (abfd->flags & DYNAMIC) == 0
+      && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
     elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
 
   return TRUE;