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[deliverable/binutils-gdb.git] / bfd / elf32-i386.c

diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c
index 0ff31471f3efda6be5c5050483b5ee526518d368..e9b3933cbd6caaad61ca0369169a77b45290e31f 100644 (file)
--- a/bfd/elf32-i386.c
+++ b/bfd/elf32-i386.c
@@ -419,7 +419,7 @@ elf_i386_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
       elf_tdata (abfd)->core_signal = bfd_get_32 (abfd, note->descdata + 20);
 
       /* pr_pid */
-      elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
+      elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
 
       /* pr_reg */
       offset = 28;
@@ -437,7 +437,7 @@ elf_i386_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
          elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
 
          /* pr_pid */
-         elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
+         elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
 
          /* pr_reg */
          offset = 72;
@@ -475,6 +475,8 @@ elf_i386_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
          return FALSE;
 
        case 124:               /* Linux/i386 elf_prpsinfo.  */
+         elf_tdata (abfd)->core_pid
+           = bfd_get_32 (abfd, note->descdata + 12);
          elf_tdata (abfd)->core_program
            = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
          elf_tdata (abfd)->core_command
@@ -1805,23 +1807,10 @@ elf_i386_gc_sweep_hook (bfd *abfd,
       r_symndx = ELF32_R_SYM (rel->r_info);
       if (r_symndx >= symtab_hdr->sh_info)
        {
-         struct elf_i386_link_hash_entry *eh;
-         struct elf_dyn_relocs **pp;
-         struct elf_dyn_relocs *p;
-
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
          while (h->root.type == bfd_link_hash_indirect
                 || h->root.type == bfd_link_hash_warning)
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
-         eh = (struct elf_i386_link_hash_entry *) h;
-
-         for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
-           if (p->sec == sec)
-             {
-               /* Everything must go for SEC.  */
-               *pp = p->next;
-               break;
-             }
        }
       else
        {
@@ -1841,6 +1830,22 @@ elf_i386_gc_sweep_hook (bfd *abfd,
            }
        }
 
+      if (h)
+       {
+         struct elf_i386_link_hash_entry *eh;
+         struct elf_dyn_relocs **pp;
+         struct elf_dyn_relocs *p;
+
+         eh = (struct elf_i386_link_hash_entry *) h;
+         for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+           if (p->sec == sec)
+             {
+               /* Everything must go for SEC.  */
+               *pp = p->next;
+               break;
+             }
+       }
+
       r_type = ELF32_R_TYPE (rel->r_info);
       if (! elf_i386_tls_transition (info, abfd, sec, NULL,
                                     symtab_hdr, sym_hashes,
@@ -1881,7 +1886,8 @@ elf_i386_gc_sweep_hook (bfd *abfd,
 
        case R_386_32:
        case R_386_PC32:
-         if (info->shared)
+         if (info->shared
+             && (h == NULL || h->type != STT_GNU_IFUNC))
            break;
          /* Fall through */
 
@@ -2557,10 +2563,17 @@ elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
 
   if (htab->elf.sgotplt)
     {
+      struct elf_link_hash_entry *got;
+      got = elf_link_hash_lookup (elf_hash_table (info),
+                                 "_GLOBAL_OFFSET_TABLE_",
+                                 FALSE, FALSE, FALSE);
+
       /* Don't allocate .got.plt section if there are no GOT nor PLT
-         entries.  */
-      if ((htab->elf.sgotplt->size
-          == get_elf_backend_data (output_bfd)->got_header_size)
+         entries and there is no refeence to _GLOBAL_OFFSET_TABLE_.  */
+      if ((got == NULL
+          || !got->ref_regular_nonweak)
+         && (htab->elf.sgotplt->size
+             == get_elf_backend_data (output_bfd)->got_header_size)
          && (htab->elf.splt == NULL
              || htab->elf.splt->size == 0)
          && (htab->elf.sgot == NULL
@@ -2819,11 +2832,16 @@ static bfd_vma
 elf_i386_tpoff (struct bfd_link_info *info, bfd_vma address)
 {
   struct elf_link_hash_table *htab = elf_hash_table (info);
+  const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
+  bfd_vma static_tls_size;
 
   /* If tls_sec is NULL, we should have signalled an error already.  */
   if (htab->tls_sec == NULL)
     return 0;
-  return htab->tls_size + htab->tls_sec->vma - address;
+
+  /* Consider special static TLS alignment requirements.  */
+  static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
+  return static_tls_size + htab->tls_sec->vma - address;
 }
 
 /* Relocate an i386 ELF section.  */
@@ -4613,6 +4631,13 @@ elf_i386_finish_dynamic_sections (bfd *output_bfd,
 
   if (htab->elf.sgotplt)
     {
+      if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
+       {
+         (*_bfd_error_handler)
+           (_("discarded output section: `%A'"), htab->elf.sgotplt);
+         return FALSE;
+       }
+
       /* Fill in the first three entries in the global offset table.  */
       if (htab->elf.sgotplt->size > 0)
        {
@@ -4683,6 +4708,7 @@ elf_i386_add_symbol_hook (bfd * abfd,
 #define TARGET_LITTLE_SYM              bfd_elf32_i386_vec
 #define TARGET_LITTLE_NAME             "elf32-i386"
 #define ELF_ARCH                       bfd_arch_i386
+#define ELF_TARGET_ID                  I386_ELF_DATA
 #define ELF_MACHINE_CODE               EM_386
 #define ELF_MAXPAGESIZE                        0x1000
 
@@ -4778,6 +4804,11 @@ elf_i386_fbsd_post_process_headers (bfd *abfd, struct bfd_link_info *info)
 #undef elf32_bed
 #define        elf32_bed                       elf32_i386_sol2_bed
 
+/* The 32-bit static TLS arena size is rounded to the nearest 8-byte
+   boundary.  */
+#undef elf_backend_static_tls_alignment
+#define elf_backend_static_tls_alignment 8
+
 /* The Solaris 2 ABI requires a plt symbol on all platforms.
 
    Cf. Linker and Libraries Guide, Ch. 2, Link-Editor, Generating the Output
@@ -4831,6 +4862,7 @@ elf_i386_vxworks_link_hash_table_create (bfd *abfd)
 #undef elf_backend_final_write_processing
 #define elf_backend_final_write_processing \
   elf_vxworks_final_write_processing
+#undef elf_backend_static_tls_alignment
 
 /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
    define it.  */