X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-cr16c.c;h=6547ec142e39c62efc3b791013c5afc87fc61ef3;hb=64d2901806c171c0d949f8fb1b29b4e5ba8cf04d;hp=eb85bd3f3d0b134b931d2d04fd1091cebfdc9534;hpb=ab96bf03fd98b6f68cd213ac81f52be3aca9c435;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/elf32-cr16c.c b/bfd/elf32-cr16c.c
index eb85bd3f3d..6547ec142e 100644
--- a/bfd/elf32-cr16c.c
+++ b/bfd/elf32-cr16c.c
@@ -1,11 +1,11 @@
 /* BFD back-end for National Semiconductor's CR16C ELF
-   Copyright 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2004-2015 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,10 +15,11 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "libbfd.h"
 #include "bfdlink.h"
 #include "elf/cr16c.h"
@@ -27,14 +28,14 @@
 
 #define USE_REL	1	/* CR16C uses REL relocations instead of RELA.  */
 
-/* The following definition is based on EMPTY_HOWTO macro, 
+/* The following definition is based on EMPTY_HOWTO macro,
    but also initiates the "name" field in HOWTO struct.  */
 #define ONLY_NAME_HOWTO(C) \
   HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
 	  STRINGX(C), FALSE, 0, 0, FALSE)
 
 /* reloc_map_index array maps CRASM relocation type into a BFD
-   relocation enum. The array's indices are synchronized with 
+   relocation enum. The array's indices are synchronized with
    RINDEX_16C_* indices, created in include/elf/cr16c.h.
    The array is used in:
    1. elf32-cr16c.c : elf_cr16c_reloc_type_lookup().
@@ -150,6 +151,20 @@ elf_cr16c_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   return 0;
 }
 
+static reloc_howto_type *
+elf_cr16c_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+			     const char *r_name)
+{
+  unsigned int i;
+
+  for (i = 0; i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); i++)
+    if (elf_howto_table[i].name != NULL
+	&& strcasecmp (elf_howto_table[i].name, r_name) == 0)
+      return &elf_howto_table[i];
+
+  return NULL;
+}
+
 static void
 elf_cr16c_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
 			 arelent *cache_ptr ATTRIBUTE_UNUSED,
@@ -165,7 +180,11 @@ elf_cr16c_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
 {
   unsigned int r_type = ELF32_R_TYPE (dst->r_info);
 
-  BFD_ASSERT (r_type < (unsigned int) RINDEX_16C_MAX);
+  if (r_type >= RINDEX_16C_MAX)
+    {
+      _bfd_error_handler (_("%B: invalid CR16C reloc number: %d"), abfd, r_type);
+      r_type = 0;
+    }
   cache_ptr->howto = &elf_howto_table[r_type];
 }
 
@@ -189,7 +208,6 @@ cr16c_elf_final_link_relocate (reloc_howto_type *howto,
   unsigned long format, addr_type, code_factor;
   unsigned short size;
   unsigned short r_type;
-  asymbol *symbol = NULL;
 
   unsigned long disp20_opcod;
   char neg = 0;
@@ -209,9 +227,6 @@ cr16c_elf_final_link_relocate (reloc_howto_type *howto,
   addr_type = r_type & R_ADDRTYPE;
   code_factor = ((addr_type == R_CODE_ADDR) ? 1 : 0);
 
-  if (sym_sec)
-    symbol = sym_sec->symbol;
-
   switch (format)
     {
     case R_NUMBER:
@@ -703,24 +718,17 @@ elf32_cr16c_relocate_section (bfd *output_bfd,
 	}
       else
 	{
-	  bfd_boolean unresolved_reloc, warned;
+	  bfd_boolean unresolved_reloc, warned, ignored;
 
 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
 				   r_symndx, symtab_hdr, sym_hashes,
 				   h, sec, relocation,
-				   unresolved_reloc, warned);
+				   unresolved_reloc, warned, ignored);
 	}
 
-      if (sec != NULL && elf_discarded_section (sec))
-	{
-	  /* For relocs against symbols from removed linkonce sections,
-	     or sections discarded by a linker script, we just want the
-	     section contents zeroed.  Avoid any special processing.  */
-	  _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
-	  rel->r_info = 0;
-	  rel->r_addend = 0;
-	  continue;
-	}
+      if (sec != NULL && discarded_section (sec))
+	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+					 rel, 1, relend, howto, 0, contents);
 
       if (info->relocatable)
 	{
@@ -912,7 +920,7 @@ elf32_cr16c_add_symbol_hook (bfd *abfd,
   return TRUE;
 }
 
-static bfd_boolean
+static int
 elf32_cr16c_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
 				     const char *name ATTRIBUTE_UNUSED,
 				     Elf_Internal_Sym *sym,
@@ -931,11 +939,11 @@ elf32_cr16c_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED
 	sym->st_shndx = SHN_CR16C_NCOMMON;
     }
 
-  return TRUE;
+  return 1;
 }
 
 /* Definitions for setting CR16C target vector.  */
-#define TARGET_LITTLE_SYM		bfd_elf32_cr16c_vec
+#define TARGET_LITTLE_SYM		cr16c_elf32_vec
 #define TARGET_LITTLE_NAME		"elf32-cr16c"
 #define ELF_ARCH			bfd_arch_cr16c
 #define ELF_MACHINE_CODE		EM_CR
@@ -943,6 +951,7 @@ elf32_cr16c_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED
 #define elf_symbol_leading_char		'_'
 
 #define bfd_elf32_bfd_reloc_type_lookup		elf_cr16c_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup	elf_cr16c_reloc_name_lookup
 #define elf_info_to_howto			elf_cr16c_info_to_howto
 #define elf_info_to_howto_rel			elf_cr16c_info_to_howto_rel
 #define elf_backend_relocate_section		elf32_cr16c_relocate_section