Two fixes in dwarf-mode.el

[thirdparty/binutils-gdb.git] / bfd / elf32-vax.c

diff --git a/bfd/elf32-vax.c b/bfd/elf32-vax.c
index 80162d87cb26d1b42e4b658c3cc3aee99c97740b..58a4a8bdfbee928ea4820e4a5bc154268cf6fd39 100644 (file)
--- a/bfd/elf32-vax.c
+++ b/bfd/elf32-vax.c
@@ -1,5 +1,5 @@
 /* VAX series support for 32-bit ELF
-   Copyright (C) 1993-2019 Free Software Foundation, Inc.
+   Copyright (C) 1993-2020 Free Software Foundation, Inc.
    Contributed by Matt Thomas <matt@3am-software.com>.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -470,7 +470,7 @@ static struct bfd_link_hash_table *
 elf_vax_link_hash_table_create (bfd *abfd)
 {
   struct elf_link_hash_table *ret;
-  bfd_size_type amt = sizeof (struct elf_link_hash_table);
+  size_t amt = sizeof (struct elf_link_hash_table);
 
   ret = bfd_zmalloc (amt);
   if (ret == NULL)
@@ -712,6 +712,11 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
                h->plt.refcount++;
            }
 
+         /* Non-GOT reference may need a copy reloc in executable or
+            a dynamic reloc in shared library.  */
+         if (h != NULL)
+           h->non_got_ref = 1;
+
          /* If we are creating a shared library, we need to copy the
             reloc into the shared library.  */
          if (bfd_link_pic (info)
@@ -929,6 +934,11 @@ elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info,
   if (bfd_link_pic (info))
     return TRUE;
 
+  /* If there are no references to this symbol that do not use the
+     GOT relocation, we don't need to generate a copy reloc.  */
+  if (!h->non_got_ref)
+    return TRUE;
+
   /* We must allocate the symbol in our .dynbss section, which will
      become part of the .bss section of the executable.  There will be
      an entry for this symbol in the .dynsym section.  The dynamic
@@ -1019,9 +1029,7 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
 {
   bfd *dynobj;
   asection *s;
-  bfd_boolean plt;
   bfd_boolean relocs;
-  bfd_boolean reltext;
 
   dynobj = elf_hash_table (info)->dynobj;
   BFD_ASSERT (dynobj != NULL);
@@ -1057,9 +1065,7 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
   /* The check_relocs and adjust_dynamic_symbol entry points have
      determined the sizes of the various dynamic sections.  Allocate
      memory for them.  */
-  plt = FALSE;
   relocs = FALSE;
-  reltext = FALSE;
   for (s = dynobj->sections; s != NULL; s = s->next)
     {
       const char *name;
@@ -1074,33 +1080,14 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
       if (strcmp (name, ".plt") == 0)
        {
          /* Remember whether there is a PLT.  */
-         plt = s->size != 0;
+         ;
        }
       else if (CONST_STRNEQ (name, ".rela"))
        {
          if (s->size != 0)
            {
-             asection *target;
-
-             /* Remember whether there are any reloc sections other
-                than .rela.plt.  */
              if (strcmp (name, ".rela.plt") != 0)
-               {
-                 const char *outname;
-
-                 relocs = TRUE;
-
-                 /* If this relocation section applies to a read only
-                    section, then we probably need a DT_TEXTREL
-                    entry.  .rela.plt is actually associated with
-                    .got.plt, which is never readonly.  */
-                 outname = bfd_section_name (s->output_section);
-                 target = bfd_get_section_by_name (output_bfd, outname + 5);
-                 if (target != NULL
-                     && (target->flags & SEC_READONLY) != 0
-                     && (target->flags & SEC_ALLOC) != 0)
-                   reltext = TRUE;
-               }
+               relocs = TRUE;
 
              /* We use the reloc_count field as a counter if we need
                 to copy relocs into the output file.  */
@@ -1138,48 +1125,7 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
        return FALSE;
     }
 
-  if (elf_hash_table (info)->dynamic_sections_created)
-    {
-      /* Add some entries to the .dynamic section.  We fill in the
-        values later, in elf_vax_finish_dynamic_sections, but we
-        must add the entries now so that we get the correct size for
-        the .dynamic section.  The DT_DEBUG entry is filled in by the
-        dynamic linker and used by the debugger.  */
-#define add_dynamic_entry(TAG, VAL) \
-  _bfd_elf_add_dynamic_entry (info, TAG, VAL)
-
-      if (!bfd_link_pic (info))
-       {
-         if (!add_dynamic_entry (DT_DEBUG, 0))
-           return FALSE;
-       }
-
-      if (plt)
-       {
-         if (!add_dynamic_entry (DT_PLTGOT, 0)
-             || !add_dynamic_entry (DT_PLTRELSZ, 0)
-             || !add_dynamic_entry (DT_PLTREL, DT_RELA)
-             || !add_dynamic_entry (DT_JMPREL, 0))
-           return FALSE;
-       }
-
-      if (relocs)
-       {
-         if (!add_dynamic_entry (DT_RELA, 0)
-             || !add_dynamic_entry (DT_RELASZ, 0)
-             || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
-           return FALSE;
-       }
-
-      if (reltext || (info->flags & DF_TEXTREL) != 0)
-       {
-         if (!add_dynamic_entry (DT_TEXTREL, 0))
-           return FALSE;
-       }
-    }
-#undef add_dynamic_entry
-
-  return TRUE;
+  return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
 }
 
 /* This function is called via elf_vax_link_hash_traverse if we are