* elf32-hppa.c (elf32_hppa_relocate_section): Set up .plt entries
authorAlan Modra <amodra@gmail.com>
Mon, 28 May 2001 10:12:04 +0000 (10:12 +0000)
committerAlan Modra <amodra@gmail.com>
Mon, 28 May 2001 10:12:04 +0000 (10:12 +0000)
for symbols forced local that need plabels.
(elf32_hppa_adjust_dynamic_symbol): Don't allocate space in
.plt.rela for local syms if non-shared.
(hppa_build_one_stub): Mask lsb of plt.offset.
(elf32_hppa_finish_dynamic_symbol): Abort if lsb of plt.offset set.
(clobber_millicode_symbols): Correct comment.
(elf32_hppa_relocate_section): Likewise.
(elf32_hppa_finish_dynamic_symbol): Likewise.

bfd/ChangeLog
bfd/elf32-hppa.c

index b6d3c4071633789d2a21ffb2c8e055151cee7881..5948ac2cb9289c5a8fd51aa6b4cf10fdd70d7eaa 100644 (file)
@@ -1,3 +1,15 @@
+2001-05-28  Alan Modra  <amodra@one.net.au>
+
+       * elf32-hppa.c (elf32_hppa_relocate_section): Set up .plt entries
+       for symbols forced local that need plabels.
+       (elf32_hppa_adjust_dynamic_symbol): Don't allocate space in
+       .plt.rela for local syms if non-shared.
+       (hppa_build_one_stub): Mask lsb of plt.offset.
+       (elf32_hppa_finish_dynamic_symbol): Abort if lsb of plt.offset set.
+       (clobber_millicode_symbols): Correct comment.
+       (elf32_hppa_relocate_section): Likewise.
+       (elf32_hppa_finish_dynamic_symbol): Likewise.
+
 2001-05-28  Jeff Sturm  <jsturm@one-point.com>
 
        * reloc.c: Add BFD_RELOC_SPARC_UA16 and BFD_RELOC_SPARC_UA64.
index 6a63b7c2a77750aab910f20c1813083d6365e930..cda71107ed6f28cdc9c7a7d4682208863dd552b2 100644 (file)
@@ -831,6 +831,7 @@ hppa_build_one_stub (gen_entry, in_arg)
   bfd_byte *loc;
   bfd_vma sym_value;
   bfd_vma insn;
+  bfd_vma off;
   int val;
   int size;
 
@@ -938,9 +939,12 @@ hppa_build_one_stub (gen_entry, in_arg)
 
     case hppa_stub_import:
     case hppa_stub_import_shared:
-      if (stub_entry->h->elf.plt.offset >= (bfd_vma) -2)
+      off = stub_entry->h->elf.plt.offset;
+      if (off >= (bfd_vma) -2)
        abort ();
-      sym_value = (stub_entry->h->elf.plt.offset
+
+      off &= ~ (bfd_vma) 1;
+      sym_value = (off
                   + hplink->splt->output_offset
                   + hplink->splt->output_section->vma
                   - elf_gp (hplink->splt->output_section->owner));
@@ -1014,10 +1018,10 @@ hppa_build_one_stub (gen_entry, in_arg)
             <__gp>.  */
 
          bfd_put_32 (hplink->splt->owner, value,
-                     hplink->splt->contents + eh->elf.plt.offset);
+                     hplink->splt->contents + off);
          value = elf_gp (hplink->splt->output_section->owner);
          bfd_put_32 (hplink->splt->owner, value,
-                     hplink->splt->contents + eh->elf.plt.offset + 4);
+                     hplink->splt->contents + off + 4);
        }
       break;
 
@@ -1957,11 +1961,14 @@ elf32_hppa_adjust_dynamic_symbol (info, h)
                return false;
            }
 
-         /* We also need to make an entry in the .rela.plt section.  */
-         s = hplink->srelplt;
-         s->_raw_size += sizeof (Elf32_External_Rela);
+         if (h->dynindx != -1 || info->shared)
+           {
+             /* We also need to make an entry in the .rela.plt section.  */
+             s = hplink->srelplt;
+             s->_raw_size += sizeof (Elf32_External_Rela);
 
-         hplink->need_plt_stub = 1;
+             hplink->need_plt_stub = 1;
+           }
        }
       return true;
     }
@@ -2149,8 +2156,8 @@ clobber_millicode_symbols (h, info)
      struct elf_link_hash_entry *h;
      struct bfd_link_info *info;
 {
-  /* Note!  We only want to remove these from the dynamic symbol
-     table.  Therefore we do not set ELF_LINK_FORCED_LOCAL.  */
+  /* We only want to remove these from the dynamic symbol table.
+     Therefore we do not leave ELF_LINK_FORCED_LOCAL set.  */
   if (h->type == STT_PARISC_MILLI)
     {
       unsigned short oldflags = h->elf_link_hash_flags;
@@ -3684,10 +3691,10 @@ elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
 
                  if (info->shared)
                    {
-                     /* Output a dynamic *ABS* relocation for this
-                        GOT entry.  In this case it is relative to
-                        the base of the object because the symbol
-                        index is zero.  */
+                     /* Output a dynamic relocation for this GOT
+                        entry.  In this case it is relative to the
+                        base of the object because the symbol index
+                        is zero.  */
                      Elf_Internal_Rela outrel;
                      asection *srelgot = hplink->srelgot;
 
@@ -3735,6 +3742,25 @@ elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
              if (h != NULL)
                {
                  off = h->elf.plt.offset;
+                 if (!info->shared
+                     && (h->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
+                   {
+                     /* In a non-shared link, adjust_dynamic_symbols
+                        isn't called for symbols forced local.  We
+                        need to write out the plt entry here.  */ 
+                     if ((off & 1) != 0)
+                       off &= ~1;
+                     else
+                       {
+                         bfd_put_32 (output_bfd,
+                                     relocation,
+                                     hplink->splt->contents + off);
+                         bfd_put_32 (output_bfd,
+                                     elf_gp (hplink->splt->output_section->owner),
+                                     hplink->splt->contents + off + 4);
+                         h->elf.plt.offset |= 1;
+                       }
+                   }
                }
              else
                {
@@ -3780,7 +3806,7 @@ elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
                    }
                }
 
-             if (off >= (bfd_vma) -2)
+             if (off >= (bfd_vma) -2 || (off & 1) != 0)
                abort ();
 
              /* PLABELs contain function pointers.  Relocation is to
@@ -4015,6 +4041,9 @@ elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym)
     {
       bfd_vma value;
 
+      if (h->plt.offset & 1)
+       abort ();
+
       /* This symbol has an entry in the procedure linkage table.  Set
         it up.
 
@@ -4045,8 +4074,8 @@ elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym)
            {
              /* To support lazy linking, the function pointer is
                 initialised to point to a special stub stored at the
-                end of the .plt.  This is only done for plt entries
-                with a non-*ABS* dynamic relocation.  */
+                end of the .plt.  This is not done for plt entries
+                with a base-relative dynamic relocation.  */
              value = (hplink->splt->output_offset
                       + hplink->splt->output_section->vma
                       + hplink->splt->_raw_size
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