* elf32-cris.c (cris_elf_relocate_section): Move sanity-check for

	NULL sym_hashes to just before use.
	<case R_CRIS_32_GOTREL>: In test for local symbol, accept also
	symbol with non-default visibility.
	<case R_CRIS_32_GOTREL, case R_CRIS_32_PLT_GOTREL>: Ditto.
	<case R_CRIS_8_PCREL, case R_CRIS_16_PCREL, case R_CRIS_32_PCREL>:
	Ditto.
	(cris_elf_gc_sweep_hook): Only decrease h->plt.refcount for
	symbol with non-default visibility.
	(cris_elf_check_relocs): At tests for local symbol before
	increasing h->plt.refcount, also check for non-default
	visibility.  Ditto when checking for local symbol to eliminate
	pc-relative runtime relocs.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 9e715e9..265352e 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,19 @@
+2002-07-09  Hans-Peter Nilsson  <hp@axis.com>
+
+       * elf32-cris.c (cris_elf_relocate_section): Move sanity-check for
+       NULL sym_hashes to just before use.
+       <case R_CRIS_32_GOTREL>: In test for local symbol, accept also
+       symbol with non-default visibility.
+       <case R_CRIS_32_GOTREL, case R_CRIS_32_PLT_GOTREL>: Ditto.
+       <case R_CRIS_8_PCREL, case R_CRIS_16_PCREL, case R_CRIS_32_PCREL>:
+       Ditto.
+       (cris_elf_gc_sweep_hook): Only decrease h->plt.refcount for
+       symbol with non-default visibility.
+       (cris_elf_check_relocs): At tests for local symbol before
+       increasing h->plt.refcount, also check for non-default
+       visibility.  Ditto when checking for local symbol to eliminate
+       pc-relative runtime relocs.
+
 2002-07-08  Alan Modra  <amodra@bigpond.net.au>
 
        * elf.c: Formatting.

diff --git a/bfd/elf32-cris.c b/bfd/elf32-cris.c
index 38d94f0..cbef5dd 100644 (file)
--- a/bfd/elf32-cris.c
+++ b/bfd/elf32-cris.c
@@ -805,11 +805,6 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
   sym_hashes = elf_sym_hashes (input_bfd);
   relend     = relocs + input_section->reloc_count;
 
-  /* It seems this can happen with erroneous or unsupported input (mixing
-     a.out and elf in an archive, for example.)  */
-  if (sym_hashes == NULL)
-    return false;
-
   sgot = NULL;
   splt = NULL;
   sreloc = NULL;
@@ -879,6 +874,11 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
        }
       else
        {
+         /* It seems this can happen with erroneous or unsupported input
+            (mixing a.out and elf in an archive, for example.)  */
+         if (sym_hashes == NULL)
+           return false;
+
          h = sym_hashes [r_symndx - symtab_hdr->sh_info];
 
          while (h->root.type == bfd_link_hash_indirect
@@ -1150,7 +1150,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 
        case R_CRIS_32_GOTREL:
          /* This relocation must only be performed against local symbols.  */
-         if (h != NULL)
+         if (h != NULL && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
            {
              (*_bfd_error_handler)
                (_("%s: relocation %s is not allowed for global symbol: `%s' from %s section"),
@@ -1190,7 +1190,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 
          /* Resolve a PLT_PCREL reloc against a local symbol directly,
             without using the procedure linkage table.  */
-         if (h == NULL)
+         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
            break;
 
          if (h->plt.offset == (bfd_vma) -1
@@ -1215,7 +1215,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
 
          /* Resolve a PLT_GOTREL reloc against a local symbol directly,
             without using the procedure linkage table.  */
-         if (h == NULL)
+         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
            break;
 
          if (h->plt.offset == (bfd_vma) -1
@@ -1237,7 +1237,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
        case R_CRIS_16_PCREL:
        case R_CRIS_32_PCREL:
          /* If the symbol was local, we need no shlib-specific handling.  */
-         if (h == NULL)
+         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
            break;
 
          /* Fall through.  */
@@ -1898,7 +1898,8 @@ cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
          if (r_symndx >= symtab_hdr->sh_info)
            {
              h = sym_hashes[r_symndx - symtab_hdr->sh_info];
-             if (h->plt.refcount > 0)
+             if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+                 && h->plt.refcount > 0)
                --h->plt.refcount;
            }
          break;
@@ -2486,7 +2487,7 @@ cris_elf_check_relocs (abfd, info, sec, relocs)
 
          /* If this is a local symbol, we resolve it directly without
             creating a procedure linkage table entry.  */
-         if (h == NULL)
+         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
            continue;
 
          h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
@@ -2525,7 +2526,8 @@ cris_elf_check_relocs (abfd, info, sec, relocs)
 
              /* Make sure a plt entry is created for this symbol if it
                 turns out to be a function defined by a dynamic object.  */
-             h->plt.refcount++;
+             if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
+               h->plt.refcount++;
            }
 
          /* If we are creating a shared library and this is not a local
@@ -2558,7 +2560,7 @@ cris_elf_check_relocs (abfd, info, sec, relocs)
              || r_type == R_CRIS_32_PCREL)
            {
              /* If the symbol is local, then we can eliminate the reloc.  */
-             if (h == NULL)
+             if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
                break;
 
              /* If this is with -Bsymbolic and the symbol isn't weak, and