Change "reloc_howto_type" typedef to be "const", since all uses of it are (or

should be) anyways.

1 files changed, 159 insertions, 0 deletions

diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c
new file mode 100644
index 0000000..7db11ad
--- /dev/null
+++ b/bfd/elf32-arc.c
@@ -0,0 +1,159 @@
+/* ARC-specific support for 32-bit ELF
+   Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Doug Evans (dje@cygnus.com).
+
+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
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libelf.h"
+
+static bfd_reloc_status_type arc_elf_unsupported_reloc
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static const struct reloc_howto_struct *bfd_elf32_bfd_reloc_type_lookup
+  PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
+static void arc_info_to_howto
+  PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
+
+enum reloc_type
+{
+  R_ARC_NONE = 0,
+  R_ARC_ADDR32,
+  R_ARC_B22_PCREL,
+  R_ARC_max
+};
+
+static reloc_howto_type elf_arc_howto_table[] =
+{
+  /* This reloc does nothing.  */
+  HOWTO (R_ARC_NONE,		/* type */                                 
+	 0,			/* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */                     
+	 "R_ARC_NONE",          /* name */                                 
+	 false,	                /* partial_inplace */                      
+	 0,		        /* src_mask */                             
+	 0,            		/* dst_mask */                             
+	 false),                /* pcrel_offset */
+
+  /* A standard 32 bit relocation.  */
+  HOWTO (R_ARC_ADDR32,          /* type */                                 
+	 0,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 32,	                /* bitsize */                   
+	 false,	                /* pc_relative */                          
+	 0,	                /* bitpos */                               
+	 complain_overflow_bitfield, /* complain_on_overflow */
+	 bfd_elf_generic_reloc, /* special_function */                     
+	 "R_ARC_ADDR32",	/* name */
+	 false,	                /* partial_inplace */                      
+	 0,		        /* src_mask */                             
+	 0xffffffff,   		/* dst_mask */                             
+	 false),                /* pcrel_offset */
+
+  /* A relative 22 bit branch; the lower two bits must be zero.  */
+  HOWTO (R_ARC_B22_PCREL,       /* type */                                 
+	 2,	                /* rightshift */                           
+	 2,	                /* size (0 = byte, 1 = short, 2 = long) */ 
+	 22,	                /* bitsize */                   
+	 true,	                /* pc_relative */                          
+	 7,	                /* bitpos */                               
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */                     
+	 "R_ARC_B22_PCREL",	/* name */
+	 false,	                /* partial_inplace */                      
+	 0,		        /* src_mask */                             
+	 0x07ffff80,   		/* dst_mask */                             
+	 true),                 /* pcrel_offset */
+
+};
+
+/* Don't pretend we can deal with unsupported relocs.  */
+
+static bfd_reloc_status_type
+arc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
+			   output_bfd, error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  abort ();
+}
+
+/* Map BFD reloc types to PowerPC ELF reloc types.  */
+
+struct arc_reloc_map
+{
+  unsigned char bfd_reloc_val;
+  unsigned char elf_reloc_val;
+};
+
+static const struct arc_reloc_map arc_reloc_map[] =
+{
+  { BFD_RELOC_NONE, R_ARC_NONE, },
+  { BFD_RELOC_32, R_ARC_ADDR32 },
+  { BFD_RELOC_CTOR, R_ARC_ADDR32 },
+  { BFD_RELOC_ARC_B22_PCREL, R_ARC_B22_PCREL },
+};
+
+static const struct reloc_howto_struct *
+bfd_elf32_bfd_reloc_type_lookup (abfd, code)
+     bfd *abfd;
+     bfd_reloc_code_real_type code;
+{
+  int i;
+
+  for (i = 0;
+       i < sizeof (arc_reloc_map) / sizeof (struct arc_reloc_map);
+       i++)
+    {
+      if (arc_reloc_map[i].bfd_reloc_val == code)
+	return &elf_arc_howto_table[arc_reloc_map[i].elf_reloc_val];
+    }
+
+  return NULL;
+}
+
+/* Set the howto pointer for an ARC ELF reloc.  */
+
+static void
+arc_info_to_howto (abfd, cache_ptr, dst)
+     bfd *abfd;
+     arelent *cache_ptr;
+     Elf32_Internal_Rela *dst;
+{
+  BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_ARC_max);
+  cache_ptr->howto = &elf_arc_howto_table[ELF32_R_TYPE (dst->r_info)];
+}
+
+#define TARGET_BIG_SYM		bfd_elf32_arc_vec
+#define TARGET_BIG_NAME		"elf32-arc"
+#define ELF_ARCH		bfd_arch_arc
+#define ELF_MACHINE_CODE	EM_CYGNUS_ARC
+#define ELF_MAXPAGESIZE		0x10000
+#define elf_info_to_howto	arc_info_to_howto
+
+#include "elf32-target.h"