--- /dev/null
+/* V850-specific support for 32-bit ELF
+ Copyright (C) 1994, 1995 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
+(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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+
+static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
+ PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
+static void v850_info_to_howto_rel
+ PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
+
+
+/* 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
+
+enum reloc_type
+{
+ R_V850_NONE = 0,
+ R_V850_9_PCREL,
+ R_V850_22_PCREL,
+ R_V850_HI16_S,
+ R_V850_HI16,
+ R_V850_LO16,
+ R_V850_max
+};
+
+static reloc_howto_type elf_v850_howto_table[] =
+{
+ /* This reloc does nothing. */
+ HOWTO (R_V850_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_V850_NONE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A PC relative 9 bit branch. */
+ HOWTO (R_V850_9_PCREL, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_V850_9_PCREL", /* name */
+ false, /* partial_inplace */
+ 0x00ffffff, /* src_mask */
+ 0x00ffffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A PC relative 22 bit branch. */
+ HOWTO (R_V850_22_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_V850_22_PCREL", /* name */
+ false, /* partial_inplace */
+ 0x07ffff80, /* src_mask */
+ 0x07ffff80, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* High 16 bits of symbol value. */
+ HOWTO (R_V850_HI16_S, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 16, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_V850_HI16_S", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* High 16 bits of symbol value. */
+ HOWTO (R_V850_HI16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 16, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_V850_HI16", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Low 16 bits of symbol value. */
+ HOWTO (R_V850_LO16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 16, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_V850_LO16", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+};
+
+/* Map BFD reloc types to V850 ELF reloc types. */
+
+struct v850_reloc_map
+{
+ unsigned char bfd_reloc_val;
+ unsigned char elf_reloc_val;
+};
+
+static const struct v850_reloc_map v850_reloc_map[] =
+{
+ { BFD_RELOC_NONE, R_V850_NONE, },
+ { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL, },
+ { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL, },
+ { BFD_RELOC_HI16_S, R_V850_HI16_S, },
+ { BFD_RELOC_HI16, R_V850_HI16, },
+ { BFD_RELOC_LO16, R_V850_LO16, },
+};
+
+static reloc_howto_type *
+bfd_elf32_bfd_reloc_type_lookup (abfd, code)
+ bfd *abfd;
+ bfd_reloc_code_real_type code;
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (v850_reloc_map) / sizeof (struct v850_reloc_map);
+ i++)
+ {
+ if (v850_reloc_map[i].bfd_reloc_val == code)
+ return &elf_v850_howto_table[v850_reloc_map[i].elf_reloc_val];
+ }
+
+ return NULL;
+}
+
+/* Set the howto pointer for an V850 ELF reloc. */
+
+static void
+v850_info_to_howto_rel (abfd, cache_ptr, dst)
+ bfd *abfd;
+ arelent *cache_ptr;
+ Elf32_Internal_Rel *dst;
+{
+ unsigned int r_type;
+
+ r_type = ELF32_R_TYPE (dst->r_info);
+ BFD_ASSERT (r_type < (unsigned int) R_V850_max);
+ cache_ptr->howto = &elf_v850_howto_table[r_type];
+}
+
+#define TARGET_BIG_SYM bfd_elf32_v850_vec
+#define TARGET_BIG_NAME "elf32-v850"
+#define ELF_ARCH bfd_arch_v850
+#define ELF_MACHINE_CODE EM_CYGNUS_V850
+#define ELF_MAXPAGESIZE 0x1000
+
+#define elf_info_to_howto 0
+#define elf_info_to_howto_rel v850_info_to_howto_rel
+
+#include "elf32-target.h"
projects / binutils-gdb.git / commitdiff