/* ARC-specific support for 32-bit ELF
- Copyright 1994, 1995, 1997, 1999, 2001, 2002
+ Copyright 1994, 1995, 1997, 1999, 2001, 2002, 2005, 2007
Free Software Foundation, Inc.
Contributed by Doug Evans (dje@cygnus.com).
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,
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 "elf-bfd.h"
#include "elf/arc.h"
#include "libiberty.h"
-static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
-static void arc_info_to_howto_rel
- PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static bfd_boolean arc_elf_object_p
- PARAMS ((bfd *));
-static void arc_elf_final_write_processing
- PARAMS ((bfd *, bfd_boolean));
-static bfd_reloc_status_type arc_elf_b22_pcrel
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-
/* Try to minimize the amount of space occupied by relocation tables
on the ROM (not that the ROM won't be swamped by other ELF overhead). */
#define USE_REL 1
+static bfd_reloc_status_type
+arc_elf_b22_pcrel (bfd * abfd,
+ arelent * reloc_entry,
+ asymbol * symbol,
+ void * data,
+ asection * input_section,
+ bfd * output_bfd,
+ char ** error_message)
+{
+ /* If linking, back up the final symbol address by the address of the
+ reloc. This cannot be accomplished by setting the pcrel_offset
+ field to TRUE, as bfd_install_relocation will detect this and refuse
+ to install the offset in the first place, but bfd_perform_relocation
+ will still insist on removing it. */
+ if (output_bfd == NULL)
+ reloc_entry->addend -= reloc_entry->address;
+
+ /* Fall through to the default elf reloc handler. */
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+}
+
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 */
- TRUE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 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. */
+ TRUE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
/* A standard 32 bit relocation. */
- HOWTO (R_ARC_32, /* 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_32", /* name */
- TRUE, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ HOWTO (R_ARC_32, /* 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_32", /* Name. */
+ TRUE, /* Partial_inplace. */
+ 0xffffffff, /* Src_mask. */
+ 0xffffffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
/* A 26 bit absolute branch, right shifted by 2. */
- HOWTO (R_ARC_B26, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 26, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_ARC_B26", /* name */
- TRUE, /* partial_inplace */
- 0x00ffffff, /* src_mask */
- 0x00ffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ HOWTO (R_ARC_B26, /* Type. */
+ 2, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 26, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_bitfield, /* Complain_on_overflow. */
+ bfd_elf_generic_reloc, /* Special_function. */
+ "R_ARC_B26", /* Name. */
+ TRUE, /* Partial_inplace. */
+ 0x00ffffff, /* Src_mask. */
+ 0x00ffffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
/* A relative 22 bit branch; bits 21-2 are stored in bits 26-7. */
- 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 */
- arc_elf_b22_pcrel, /* special_function */
- "R_ARC_B22_PCREL", /* name */
- TRUE, /* partial_inplace */
- 0x07ffff80, /* src_mask */
- 0x07ffff80, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 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. */
+ arc_elf_b22_pcrel, /* Special_function. */
+ "R_ARC_B22_PCREL", /* Name. */
+ TRUE, /* Partial_inplace. */
+ 0x07ffff80, /* Src_mask. */
+ 0x07ffff80, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
};
/* Map BFD reloc types to ARC ELF reloc types. */
};
static reloc_howto_type *
-bfd_elf32_bfd_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
unsigned int i;
return NULL;
}
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (elf_arc_howto_table) / sizeof (elf_arc_howto_table[0]);
+ i++)
+ if (elf_arc_howto_table[i].name != NULL
+ && strcasecmp (elf_arc_howto_table[i].name, r_name) == 0)
+ return &elf_arc_howto_table[i];
+
+ return NULL;
+}
+
/* Set the howto pointer for an ARC ELF reloc. */
static void
-arc_info_to_howto_rel (abfd, cache_ptr, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *cache_ptr;
- Elf_Internal_Rela *dst;
+arc_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
{
unsigned int r_type;
/* Set the right machine number for an ARC ELF file. */
static bfd_boolean
-arc_elf_object_p (abfd)
- bfd *abfd;
+arc_elf_object_p (bfd *abfd)
{
unsigned int mach = bfd_mach_arc_6;
This gets the ARC architecture right based on the machine number. */
static void
-arc_elf_final_write_processing (abfd, linker)
- bfd *abfd;
- bfd_boolean linker ATTRIBUTE_UNUSED;
+arc_elf_final_write_processing (bfd *abfd,
+ bfd_boolean linker ATTRIBUTE_UNUSED)
{
unsigned long val;
elf_elfheader (abfd)->e_flags |= val;
}
-bfd_reloc_status_type
-arc_elf_b22_pcrel (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;
-{
- /* If linking, back up the final symbol address by the address of the
- reloc. This cannot be accomplished by setting the pcrel_offset
- field to TRUE, as bfd_install_relocation will detect this and refuse
- to install the offset in the first place, but bfd_perform_relocation
- will still insist on removing it. */
- if (output_bfd == (bfd *) NULL)
- reloc_entry->addend -= reloc_entry->address;
-
- /* Fall through to the default elf reloc handler. */
- return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
- input_section, output_bfd, error_message);
-}
-
-#define TARGET_LITTLE_SYM bfd_elf32_littlearc_vec
-#define TARGET_LITTLE_NAME "elf32-littlearc"
-#define TARGET_BIG_SYM bfd_elf32_bigarc_vec
-#define TARGET_BIG_NAME "elf32-bigarc"
-#define ELF_ARCH bfd_arch_arc
-#define ELF_MACHINE_CODE EM_ARC
-#define ELF_MAXPAGESIZE 0x1000
-
-#define elf_info_to_howto 0
-#define elf_info_to_howto_rel arc_info_to_howto_rel
-#define elf_backend_object_p arc_elf_object_p
-#define elf_backend_final_write_processing arc_elf_final_write_processing
+#define TARGET_LITTLE_SYM bfd_elf32_littlearc_vec
+#define TARGET_LITTLE_NAME "elf32-littlearc"
+#define TARGET_BIG_SYM bfd_elf32_bigarc_vec
+#define TARGET_BIG_NAME "elf32-bigarc"
+#define ELF_ARCH bfd_arch_arc
+#define ELF_MACHINE_CODE EM_ARC
+#define ELF_MAXPAGESIZE 0x1000
+
+#define elf_info_to_howto 0
+#define elf_info_to_howto_rel arc_info_to_howto_rel
+#define elf_backend_object_p arc_elf_object_p
+#define elf_backend_final_write_processing arc_elf_final_write_processing
#include "elf32-target.h"
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