* elf32-mips.c (mips_elf_check_relocs): Set dynobj if needed for

	R_MIPS_32 and R_MIPS_REL32.  Set sgot and g as soon as possible.
	(mips_elf_size_dynamic_sections): Don't require .got to exist.
	(mips_elf_finish_dynamic_sections): Likewise.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index db8e67dfb70407b36f1ae0dabb6d899fb16140ba..bb33439d1dc1e899166594feb3fadaa16ed4861e 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+Tue Aug 27 00:12:22 1996  Ian Lance Taylor  <ian@cygnus.com>
+
+       * elf32-mips.c (mips_elf_check_relocs): Set dynobj if needed for
+       R_MIPS_32 and R_MIPS_REL32.  Set sgot and g as soon as possible.
+       (mips_elf_size_dynamic_sections): Don't require .got to exist.
+       (mips_elf_finish_dynamic_sections): Likewise.
+
 Thu Aug 22 10:54:38 1996  Ian Lance Taylor  <ian@cygnus.com>
 
        * configure.host (HLDENV): New variable to set.  Set it for

diff --git a/bfd/elf32-mips.c b/bfd/elf32-mips.c
index b3fdbd684601e6ab608a4b3df433d0a287371a3d..6dc10914029df5867d7d217b5b7504ae82232f22 100644 (file)
--- a/bfd/elf32-mips.c
+++ b/bfd/elf32-mips.c
@@ -4980,7 +4980,19 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
   sym_hashes = elf_sym_hashes (abfd);
   extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
 
-  sgot = NULL;
+  if (dynobj == NULL)
+    {
+      sgot = NULL;
+      g = NULL;
+    }
+  else
+    {
+      sgot = bfd_get_section_by_name (dynobj, ".got");
+      BFD_ASSERT (elf_section_data (sgot) != NULL);
+      g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
+      BFD_ASSERT (g != NULL);
+    }
+
   sreloc = NULL;
 
   rel_end = relocs + sec->reloc_count;
@@ -4997,7 +5009,7 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
        h = sym_hashes[r_symndx - extsymoff];
 
       /* Some relocs require a global offset table.  */
-      if (dynobj == NULL)
+      if (dynobj == NULL || sgot == NULL)
        {
          switch (ELF32_R_TYPE (rel->r_info))
            {
@@ -5007,9 +5019,23 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
            case R_MIPS_CALL_LO16:
            case R_MIPS_GOT_HI16:
            case R_MIPS_GOT_LO16:
-             elf_hash_table (info)->dynobj = dynobj = abfd;
+             if (dynobj == NULL)
+               elf_hash_table (info)->dynobj = dynobj = abfd;
              if (! mips_elf_create_got_section (dynobj, info))
                return false;
+             sgot = bfd_get_section_by_name (dynobj, ".got");
+             BFD_ASSERT (sgot != NULL);
+             BFD_ASSERT (elf_section_data (sgot) != NULL);
+             g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
+             BFD_ASSERT (g != NULL);
+             break;
+
+           case R_MIPS_32:
+           case R_MIPS_REL32:
+             if (dynobj == NULL
+                 && (info->shared || h != NULL)
+                 && (sec->flags & SEC_ALLOC) != 0)
+               elf_hash_table (info)->dynobj = dynobj = abfd;
              break;
 
            default:
@@ -5023,14 +5049,6 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
        case R_MIPS_CALL_HI16:
        case R_MIPS_CALL_LO16:
          /* This symbol requires a global offset table entry.  */
-         if (sgot == NULL)
-           {
-             sgot = bfd_get_section_by_name (dynobj, ".got");
-             BFD_ASSERT (sgot != NULL);
-             BFD_ASSERT (elf_section_data (sgot) != NULL);
-             g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
-             BFD_ASSERT (g != NULL);
-           }
 
          BFD_ASSERT (h != NULL);
 
@@ -5067,14 +5085,6 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
        case R_MIPS_GOT_HI16:
        case R_MIPS_GOT_LO16:
          /* This symbol requires a global offset table entry.  */
-         if (sgot == NULL)
-           {
-             sgot = bfd_get_section_by_name (dynobj, ".got");
-             BFD_ASSERT (sgot != NULL);
-             BFD_ASSERT (elf_section_data (sgot) != NULL);
-             g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
-             BFD_ASSERT (g != NULL);
-           }
 
          if (h != NULL)
            {
@@ -5107,37 +5117,38 @@ mips_elf_check_relocs (abfd, info, sec, relocs)
          if ((info->shared || h != NULL)
              && (sec->flags & SEC_ALLOC) != 0)
            {
+             if (sreloc == NULL)
+               {
+                 const char *name = ".rel.dyn";
+
+                 sreloc = bfd_get_section_by_name (dynobj, name);
+                 if (sreloc == NULL)
+                   {
+                     sreloc = bfd_make_section (dynobj, name);
+                     if (sreloc == NULL
+                         || ! bfd_set_section_flags (dynobj, sreloc,
+                                                     (SEC_ALLOC
+                                                      | SEC_LOAD
+                                                      | SEC_HAS_CONTENTS
+                                                      | SEC_IN_MEMORY
+                                                      | SEC_READONLY))
+                         || ! bfd_set_section_alignment (dynobj, sreloc,
+                                                         4))
+                       return false;
+                   }
+               }
              if (info->shared)
                {
                  /* When creating a shared object, we must copy these
                     reloc types into the output file as R_MIPS_REL32
-                    relocs.  We create the .rel.dyn reloc section in
-                    dynobj and make room for this reloc.  */
-                 if (sreloc == NULL)
+                    relocs.  We make room for this reloc in the
+                    .rel.dyn reloc section */
+                 if (sreloc->_raw_size == 0)
                    {
-                     const char *name = ".rel.dyn";
-
-                     sreloc = bfd_get_section_by_name (dynobj, name);
-                     if (sreloc == NULL)
-                       {
-                         sreloc = bfd_make_section (dynobj, name);
-                         if (sreloc == NULL
-                             || ! bfd_set_section_flags (dynobj, sreloc,
-                                                         (SEC_ALLOC
-                                                          | SEC_LOAD
-                                                          | SEC_HAS_CONTENTS
-                                                          | SEC_IN_MEMORY
-                                                          | SEC_READONLY))
-                             || ! bfd_set_section_alignment (dynobj, sreloc,
-                                                             4))
-                           return false;
-
-                         /* Add a null element. */
-                         sreloc->_raw_size += sizeof (Elf32_External_Rel);
-                         ++sreloc->reloc_count;
-                       }
+                     /* Add a null element. */
+                     sreloc->_raw_size += sizeof (Elf32_External_Rel);
+                     ++sreloc->reloc_count;
                    }
-
                  sreloc->_raw_size += sizeof (Elf32_External_Rel);
                }
              else
@@ -5213,6 +5224,12 @@ mips_elf_adjust_dynamic_symbol (info, h)
       s = bfd_get_section_by_name (dynobj, ".rel.dyn");
       BFD_ASSERT (s != NULL);
 
+      if (s->_raw_size == 0)
+       {
+         /* Make room for a null element. */
+         s->_raw_size += sizeof (Elf32_External_Rel);
+         ++s->reloc_count;
+       }
       s->_raw_size += hmips->mips_32_relocs * sizeof (Elf32_External_Rel);
     }
 
@@ -5599,18 +5616,19 @@ mips_elf_size_dynamic_sections (output_bfd, info)
          }
       }
 
-    s = bfd_get_section_by_name (dynobj, ".got");
-    BFD_ASSERT (s != NULL);
-    BFD_ASSERT (elf_section_data (s) != NULL);
-    g = (struct mips_got_info *) elf_section_data (s)->tdata;
-    BFD_ASSERT (g != NULL);
-
-    /* If there are no global got symbols, fake the last symbol so for
-       safety.  */
-    if (g->global_gotsym)
-      g->global_gotsym += c;
-    else
-      g->global_gotsym = elf_hash_table (info)->dynsymcount - 1;
+    if (sgot != NULL)
+      {
+       BFD_ASSERT (elf_section_data (sgot) != NULL);
+       g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
+       BFD_ASSERT (g != NULL);
+
+       /* If there are no global got symbols, fake the last symbol so
+          for safety.  */
+       if (g->global_gotsym)
+         g->global_gotsym += c;
+       else
+         g->global_gotsym = elf_hash_table (info)->dynsymcount - 1;
+      }
   }
 
   return true;
@@ -5800,17 +5818,21 @@ mips_elf_finish_dynamic_sections (output_bfd, info)
   sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
 
   sgot = bfd_get_section_by_name (dynobj, ".got");
-  BFD_ASSERT (sgot != NULL);
-
-  BFD_ASSERT (elf_section_data (sgot) != NULL);
-  g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
-  BFD_ASSERT (g != NULL);
+  if (sgot == NULL)
+    g = NULL;
+  else
+    {
+      BFD_ASSERT (elf_section_data (sgot) != NULL);
+      g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
+      BFD_ASSERT (g != NULL);
+    }
 
   if (elf_hash_table (info)->dynamic_sections_created)
     {
       Elf32_External_Dyn *dyncon, *dynconend;
 
       BFD_ASSERT (sdyn != NULL);
+      BFD_ASSERT (g != NULL);
 
       dyncon = (Elf32_External_Dyn *) sdyn->contents;
       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
@@ -5956,13 +5978,14 @@ mips_elf_finish_dynamic_sections (output_bfd, info)
   /* The first entry of the global offset table will be filled at
      runtime. The second entry will be used by some runtime loaders.
      This isn't the case of Irix rld. */
-  if (sgot->_raw_size > 0)
+  if (sgot != NULL && sgot->_raw_size > 0)
     {
       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
       bfd_put_32 (output_bfd, (bfd_vma) 0x80000000, sgot->contents + 4);
     }
 
-  elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
+  if (sgot != NULL)
+    elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
 
   {
     asection *sdynsym;
@@ -6085,7 +6108,7 @@ mips_elf_finish_dynamic_sections (output_bfd, info)
 
     /* Clean up a first relocation in .rel.dyn.  */
     s = bfd_get_section_by_name (dynobj, ".rel.dyn");
-    if (s != NULL)
+    if (s != NULL && s->_raw_size > 0)
       memset (s->contents, 0, sizeof (Elf32_External_Rel));
   }