/* ARC-specific support for 32-bit ELF
- Copyright (C) 1994, 1995, 1997, 1999 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1997, 1999, 2001, 2002
+ Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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. */
#include "bfd.h"
#include "sysdep.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));
+ PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void arc_info_to_howto_rel
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
-static boolean arc_elf_object_p PARAMS ((bfd *));
-static void arc_elf_final_write_processing PARAMS ((bfd *, boolean));
+ 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
+
+#define USE_REL 1
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 */
+ 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 */
- false, /* 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 */
- false, /* 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 */
- bfd_elf_generic_reloc, /* special_function */
- "R_ARC_B22_PCREL", /* name */
- false, /* partial_inplace */
- 0x07ffff80, /* src_mask */
- 0x07ffff80, /* dst_mask */
- true), /* 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. */
{
unsigned 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];
- }
+ for (i = ARRAY_SIZE (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;
}
arc_info_to_howto_rel (abfd, cache_ptr, dst)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *cache_ptr;
- Elf32_Internal_Rel *dst;
+ Elf_Internal_Rela *dst;
{
unsigned int r_type;
/* Set the right machine number for an ARC ELF file. */
-static boolean
+static bfd_boolean
arc_elf_object_p (abfd)
bfd *abfd;
{
- int mach;
- unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH;
+ unsigned int mach = bfd_mach_arc_6;
- switch (arch)
+ if (elf_elfheader(abfd)->e_machine == EM_ARC)
{
- case E_ARC_MACH_BASE:
- mach = bfd_mach_arc_base;
- break;
- default:
- /* Unknown cpu type. ??? What to do? */
- return false;
+ unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH;
+
+ switch (arch)
+ {
+ case E_ARC_MACH_ARC5:
+ mach = bfd_mach_arc_5;
+ break;
+ default:
+ case E_ARC_MACH_ARC6:
+ mach = bfd_mach_arc_6;
+ break;
+ case E_ARC_MACH_ARC7:
+ mach = bfd_mach_arc_7;
+ break;
+ case E_ARC_MACH_ARC8:
+ mach = bfd_mach_arc_8;
+ break;
+ }
}
-
- (void) bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach);
- return true;
+ return bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach);
}
/* The final processing done just before writing out an ARC ELF object file.
static void
arc_elf_final_write_processing (abfd, linker)
bfd *abfd;
- boolean linker ATTRIBUTE_UNUSED;
+ bfd_boolean linker ATTRIBUTE_UNUSED;
{
- int mach;
unsigned long val;
- switch (mach = bfd_get_mach (abfd))
+ switch (bfd_get_mach (abfd))
{
- case bfd_mach_arc_base:
- val = E_ARC_MACH_BASE;
+ case bfd_mach_arc_5:
+ val = E_ARC_MACH_ARC5;
break;
default:
- return;
+ case bfd_mach_arc_6:
+ val = E_ARC_MACH_ARC6;
+ break;
+ case bfd_mach_arc_7:
+ val = E_ARC_MACH_ARC7;
+ break;
+ case bfd_mach_arc_8:
+ val = E_ARC_MACH_ARC8;
+ break;
}
-
elf_elfheader (abfd)->e_flags &=~ EF_ARC_MACH;
elf_elfheader (abfd)->e_flags |= val;
}
-#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_CYGNUS_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
+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
#include "elf32-target.h"
projects / binutils.git / blobdiff