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[deliverable/binutils-gdb.git] / bfd / elf32-i370.c

diff --git a/bfd/elf32-i370.c b/bfd/elf32-i370.c
index 406248937b26eb17ee82120e1f8979f022ba8fd8..4930581945af9e9df3453a806c461d0fb70d9f30 100644 (file)
--- a/bfd/elf32-i370.c
+++ b/bfd/elf32-i370.c
@@ -1,6 +1,6 @@
 /* i370-specific support for 32-bit ELF
-   Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005
-   Free Software Foundation, Inc.
+   Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004,
+   2005, 2006 Free Software Foundation, Inc.
    Written by Ian Lance Taylor, Cygnus Support.
    Hacked by Linas Vepstas for i370 linas@linas.org
 
@@ -379,7 +379,7 @@ i370_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
                        Elf_Internal_Shdr *shdr,
                        asection *asect)
 {
-  if ((asect->flags & SEC_EXCLUDE) != 0)
+  if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE)
     shdr->sh_flags |= SHF_EXCLUDE;
 
   if ((asect->flags & SEC_SORT_ENTRIES) != 0)
@@ -486,6 +486,13 @@ i370_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   if (info->shared)
     return TRUE;
 
+  if (h->size == 0)
+    {
+      (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
+                            h->root.root.string);
+      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
@@ -560,7 +567,7 @@ i370_elf_adjust_dynindx (struct elf_link_hash_entry *h, void * cparg)
 
 #ifdef DEBUG
   fprintf (stderr,
-          "i370_elf_adjust_dynindx called, h->dynindx = %d, *cp = %d\n",
+          "i370_elf_adjust_dynindx called, h->dynindx = %ld, *cp = %d\n",
           h->dynindx, *cp);
 #endif
 
@@ -648,7 +655,7 @@ i370_elf_size_dynamic_sections (bfd *output_bfd,
          /* Remember whether there is a PLT.  */
          plt = s->size != 0;
        }
-      else if (strncmp (name, ".rela", 5) == 0)
+      else if (CONST_STRNEQ (name, ".rela"))
        {
          if (s->size != 0)
            {
@@ -860,7 +867,7 @@ i370_elf_check_relocs (bfd *abfd,
              if (name == NULL)
                return FALSE;
 
-             BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+             BFD_ASSERT (CONST_STRNEQ (name, ".rela")
                          && strcmp (bfd_get_section_name (abfd, sec), name + 5) == 0);
 
              sreloc = bfd_get_section_by_name (dynobj, name);
@@ -1229,7 +1236,7 @@ i370_elf_relocate_section (bfd *output_bfd,
                  if (name == NULL)
                    return FALSE;
 
-                 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+                 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
                              && strcmp (bfd_get_section_name (input_bfd,
                                                               input_section),
                                         name + 5) == 0);
@@ -1283,13 +1290,25 @@ i370_elf_relocate_section (bfd *output_bfd,
                        {
                          asection *osec;
 
+                         /* We are turning this relocation into one
+                            against a section symbol.  It would be
+                            proper to subtract the symbol's value,
+                            osec->vma, from the emitted reloc addend,
+                            but ld.so expects buggy relocs.  */
                          osec = sec->output_section;
                          indx = elf_section_data (osec)->dynindx;
-                         BFD_ASSERT(indx > 0);
+                         if (indx == 0)
+                           {
+                             struct elf_link_hash_table *htab;
+                             htab = elf_hash_table (info);
+                             osec = htab->text_index_section;
+                             indx = elf_section_data (osec)->dynindx;
+                           }
+                         BFD_ASSERT (indx != 0);
 #ifdef DEBUG
                          if (indx <= 0)
                            {
-                             printf ("indx=%d section=%s flags=%08x name=%s\n",
+                             printf ("indx=%ld section=%s flags=%08x name=%s\n",
                                      indx, osec->name, osec->flags,
                                      h->root.root.string);
                            }
@@ -1420,6 +1439,7 @@ i370_elf_post_process_headers (bfd * abfd,
    link glibc's ld.so without errors.  */
 #define elf_backend_create_dynamic_sections    i370_elf_create_dynamic_sections
 #define elf_backend_size_dynamic_sections      i370_elf_size_dynamic_sections
+#define elf_backend_init_index_section         _bfd_elf_init_1_index_section
 #define elf_backend_finish_dynamic_sections    i370_elf_finish_dynamic_sections
 #define elf_backend_fake_sections              i370_elf_fake_sections
 #define elf_backend_section_from_shdr          i370_elf_section_from_shdr
@@ -1433,19 +1453,9 @@ i370_noop (void)
   return 1;
 }
 
-/* We need to define these at least as no-ops to link glibc ld.so.  */
-
-#define elf_backend_add_symbol_hook \
-  (bfd_boolean (*) \
-     (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, \
-      const char **, flagword *, asection **, bfd_vma *)) i370_noop
 #define elf_backend_finish_dynamic_symbol \
   (bfd_boolean (*) \
      (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, \
       Elf_Internal_Sym *)) i370_noop
-#define elf_backend_additional_program_headers \
-  (int (*) (bfd *)) i370_noop
-#define elf_backend_modify_segment_map \
-  (bfd_boolean (*) (bfd *, struct bfd_link_info *)) i370_noop
 
 #include "elf32-target.h"