/* V850-specific support for 32-bit ELF
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2006, 2007 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 3 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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
/* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
- dependencies. As is the gas & simulator code or the v850. */
-
+ dependencies. As is the gas & simulator code for the v850. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/v850.h"
+#include "libiberty.h"
-static reloc_howto_type *v850_elf_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
-static void v850_elf_info_to_howto_rel
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
-static bfd_reloc_status_type v850_elf_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static boolean v850_elf_is_local_label_name PARAMS ((bfd *, const char *));
-static boolean v850_elf_relocate_section PARAMS((bfd *,
- struct bfd_link_info *,
- bfd *,
- asection *,
- bfd_byte *,
- Elf_Internal_Rela *,
- Elf_Internal_Sym *,
- asection **));
-/* 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
-
-/* Note: It is REQUIRED that the 'type' value of each entry in this array
- match the index of the entry in the array. */
-static reloc_howto_type v850_elf_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 */
- v850_elf_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 */
- v850_elf_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 */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_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 */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_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 */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_LO16", /* name */
- true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* Simple 32bit reloc. */
- HOWTO (R_V850_32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_V850_32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* Simple 16bit reloc. */
- HOWTO (R_V850_16, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_V850_16", /* name */
- true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* Simple 8bit reloc. */
- HOWTO (R_V850_8, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_V850_8", /* name */
- true, /* partial_inplace */
- 0xff, /* src_mask */
- 0xff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 16 bit offset from the short data area pointer. */
- HOWTO (R_V850_SDA_16_16_OFFSET, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_SDA_16_16_OFFSET", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 15 bit offset from the short data area pointer. */
- HOWTO (R_V850_SDA_15_16_OFFSET, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 1, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_SDA_15_16_OFFSET", /* name */
- false, /* partial_inplace */
- 0xfffe, /* src_mask */
- 0xfffe, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 16 bit offset from the zero data area pointer. */
- HOWTO (R_V850_ZDA_16_16_OFFSET, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_ZDA_16_16_OFFSET", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 15 bit offset from the zero data area pointer. */
- HOWTO (R_V850_ZDA_15_16_OFFSET, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 1, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_ZDA_15_16_OFFSET", /* name */
- false, /* partial_inplace */
- 0xfffe, /* src_mask */
- 0xfffe, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 6 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_6_8_OFFSET, /* type */
- 2, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 1, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_TDA_6_8_OFFSET", /* name */
- false, /* partial_inplace */
- 0x7e, /* src_mask */
- 0x7e, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 8 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_7_8_OFFSET, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_TDA_7_8_OFFSET", /* name */
- false, /* partial_inplace */
- 0x7f, /* src_mask */
- 0x7f, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 7 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_7_7_OFFSET, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 7, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_TDA_7_7_OFFSET", /* name */
- false, /* partial_inplace */
- 0x7f, /* src_mask */
- 0x7f, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 16 bit offset from the tiny data area pointer! */
- HOWTO (R_V850_TDA_16_16_OFFSET, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_TDA_16_16_OFFSET", /* name */
- false, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xfff, /* dst_mask */
- false), /* pcrel_offset */
-
-/* start-sanitize-v850e */
-
- /* 5 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_4_5_OFFSET, /* type */
- 1, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 5, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_TDA_4_5_OFFSET", /* name */
- false, /* partial_inplace */
- 0x0f, /* src_mask */
- 0x0f, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 4 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_4_4_OFFSET, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 4, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_TDA_4_4_OFFSET", /* name */
- false, /* partial_inplace */
- 0x0f, /* src_mask */
- 0x0f, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 16 bit offset from the short data area pointer. */
- HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_SDA_16_16_SPLIT_OFFSET",/* name */
- false, /* partial_inplace */
- 0xfffe0020, /* src_mask */
- 0xfffe0020, /* dst_mask */
- false), /* pcrel_offset */
-
- /* 16 bit offset from the zero data area pointer. */
- HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
- v850_elf_reloc, /* special_function */
- "R_V850_ZDA_16_16_SPLIT_OFFSET",/* name */
- false, /* partial_inplace */
- 0xfffe0020, /* src_mask */
- 0xfffe0020, /* dst_mask */
- false), /* pcrel_offset */
-
-/* end-sanitize-v850e */
-};
-
-/* Map BFD reloc types to V850 ELF reloc types. */
-
-struct v850_elf_reloc_map
-{
- unsigned char bfd_reloc_val;
- unsigned char elf_reloc_val;
-};
-
-static const struct v850_elf_reloc_map v850_elf_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 },
- { BFD_RELOC_32, R_V850_32 },
- { BFD_RELOC_16, R_V850_16 },
- { BFD_RELOC_8, R_V850_8 },
- { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
- { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
- { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
- { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
- { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
- { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
- { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
- { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
-/* start-sanitize-v850e */
- { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
- { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
- { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
- { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
-/* end-sanitize-v850e */
-};
-
-\f
-/* Map a bfd relocation into the appropriate howto structure */
-static reloc_howto_type *
-v850_elf_reloc_type_lookup (abfd, code)
- bfd *abfd;
- bfd_reloc_code_real_type code;
-{
- unsigned int i;
-
- for (i = 0;
- i < sizeof (v850_elf_reloc_map) / sizeof (struct v850_elf_reloc_map);
- i++)
- {
- if (v850_elf_reloc_map[i].bfd_reloc_val == code)
- {
- BFD_ASSERT (v850_elf_howto_table[v850_elf_reloc_map[i].elf_reloc_val].type == v850_elf_reloc_map[i].elf_reloc_val);
-
- return & v850_elf_howto_table[v850_elf_reloc_map[i].elf_reloc_val];
- }
- }
-
- return NULL;
-}
-
-\f
-/* Set the howto pointer for an V850 ELF reloc. */
-static void
-v850_elf_info_to_howto_rel (abfd, cache_ptr, dst)
- bfd *abfd;
- arelent *cache_ptr;
- Elf32_Internal_Rel *dst;
-{
- unsigned int r_type;
+/* Sign-extend a 24-bit number. */
+#define SEXT24(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000)
- r_type = ELF32_R_TYPE (dst->r_info);
- BFD_ASSERT (r_type < (unsigned int) R_V850_max);
- cache_ptr->howto = &v850_elf_howto_table[r_type];
-}
+static reloc_howto_type v850_elf_howto_table[];
-\f
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
-static boolean
-v850_elf_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+static bfd_boolean
+v850_elf_check_relocs (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
- boolean ret = true;
+ bfd_boolean ret = TRUE;
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
asection *sreloc;
- enum reloc_type r_type;
+ enum v850_reloc_type r_type;
int other = 0;
- const char *common = (const char *)0;
+ const char *common = NULL;
- if (info->relocateable)
- return true;
+ if (info->relocatable)
+ return TRUE;
#ifdef DEBUG
- fprintf (stderr, "v850_elf_check_relocs called for section %s in %s\n",
- bfd_get_section_name (abfd, sec),
- bfd_get_filename (abfd));
+ _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B",
+ sec, abfd);
#endif
dynobj = elf_hash_table (info)->dynobj;
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
- r_type = (enum reloc_type) ELF32_R_TYPE (rel->r_info);
+ r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info);
switch (r_type)
{
default:
case R_V850_HI16_S:
case R_V850_HI16:
case R_V850_LO16:
- case R_V850_32:
+ case R_V850_LO16_SPLIT_OFFSET:
+ case R_V850_ABS32:
+ case R_V850_REL32:
case R_V850_16:
case R_V850_8:
+ case R_V850_CALLT_6_7_OFFSET:
+ case R_V850_CALLT_16_16_OFFSET:
break;
-/* start-sanitize-v850e */
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_V850_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries
+ are actually used. Record for later use during GC. */
+ case R_V850_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+
case R_V850_SDA_16_16_SPLIT_OFFSET:
-/* end-sanitize-v850e */
case R_V850_SDA_16_16_OFFSET:
case R_V850_SDA_15_16_OFFSET:
other = V850_OTHER_SDA;
common = ".scommon";
goto small_data_common;
-
-/* start-sanitize-v850e */
+
case R_V850_ZDA_16_16_SPLIT_OFFSET:
-/* end-sanitize-v850e */
case R_V850_ZDA_16_16_OFFSET:
case R_V850_ZDA_15_16_OFFSET:
other = V850_OTHER_ZDA;
common = ".zcommon";
goto small_data_common;
-
-/* start-sanitize-v850e */
+
case R_V850_TDA_4_5_OFFSET:
case R_V850_TDA_4_4_OFFSET:
-/* end-sanitize-v850e */
case R_V850_TDA_6_8_OFFSET:
case R_V850_TDA_7_8_OFFSET:
case R_V850_TDA_7_7_OFFSET:
small_data_common:
if (h)
{
- h->other |= other; /* flag which type of relocation was used */
+ /* Flag which type of relocation was used. */
+ h->other |= other;
if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
&& (h->other & V850_OTHER_ERROR) == 0)
{
- const char *msg;
+ const char * msg;
+ static char buff[200]; /* XXX */
switch (h->other & V850_OTHER_MASK)
{
default:
- msg = "Variable cannot occupy in multiple small data regions";
+ msg = _("Variable `%s' cannot occupy in multiple small data regions");
break;
case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
- msg = "Variable can only be in one of the small, zero, and tiny data regions";
+ msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions");
break;
case V850_OTHER_SDA | V850_OTHER_ZDA:
- msg = "Variable cannot be in both small and zero data regions simultaneously";
+ msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously");
break;
case V850_OTHER_SDA | V850_OTHER_TDA:
- msg = "Variable cannot be in both small and tiny data regions simultaneously";
+ msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously");
break;
case V850_OTHER_ZDA | V850_OTHER_TDA:
- msg = "Variable cannot be in both zero and tiny data regions simultaneously";
+ msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously");
break;
}
- (*info->callbacks->warning) (info, msg, h->root.root.string,
- abfd, h->root.u.def.section, 0);
+ sprintf (buff, msg, h->root.root.string);
+ info->callbacks->warning (info, buff, h->root.root.string,
+ abfd, h->root.u.def.section,
+ (bfd_vma) 0);
bfd_set_error (bfd_error_bad_value);
h->other |= V850_OTHER_ERROR;
- ret = false;
+ ret = FALSE;
}
}
&& h->root.u.c.p
&& !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON"))
{
- asection *section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
+ asection * section;
+
+ section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
section->flags |= SEC_IS_COMMON;
}
return ret;
}
-\f
-/* Insert the addend into the instruction. */
-static bfd_reloc_status_type
-v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err)
- bfd * abfd;
- arelent * reloc;
- asymbol * symbol;
- PTR data;
- asection * isection;
- bfd * obfd;
- char ** err;
+/* In the old version, when an entry was checked out from the table,
+ it was deleted. This produced an error if the entry was needed
+ more than once, as the second attempted retry failed.
+
+ In the current version, the entry is not deleted, instead we set
+ the field 'found' to TRUE. If a second lookup matches the same
+ entry, then we know that the hi16s reloc has already been updated
+ and does not need to be updated a second time.
+
+ TODO - TOFIX: If it is possible that we need to restore 2 different
+ addresses from the same table entry, where the first generates an
+ overflow, whilst the second do not, then this code will fail. */
+
+typedef struct hi16s_location
{
- long relocation;
- long insn;
+ bfd_vma addend;
+ bfd_byte * address;
+ unsigned long counter;
+ bfd_boolean found;
+ struct hi16s_location * next;
+}
+hi16s_location;
-
- /* If there is an output BFD,
- and the symbol is not a section name (which is only defined at final link time),
- and either we are not putting the addend into the instruction
- or the addend is zero, so there is nothing to add into the instruction
- then just fixup the address and return. */
- if (obfd != (bfd *) NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0
- && (! reloc->howto->partial_inplace
- || reloc->addend == 0))
- {
- reloc->address += isection->output_offset;
- return bfd_reloc_ok;
- }
-#if 0
- else if (obfd != NULL)
- {
- return bfd_reloc_continue;
- }
-#endif
-
- /* Catch relocs involving undefined symbols. */
- if (bfd_is_und_section (symbol->section)
- && (symbol->flags & BSF_WEAK) == 0
- && obfd == NULL)
- return bfd_reloc_undefined;
+static hi16s_location * previous_hi16s;
+static hi16s_location * free_hi16s;
+static unsigned long hi16s_counter;
- /* We handle final linking of some relocs ourselves. */
+static void
+remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
+{
+ hi16s_location * entry = NULL;
+ bfd_size_type amt = sizeof (* free_hi16s);
- /* Is the address of the relocation really within the section? */
- if (reloc->address > isection->_cooked_size)
- return bfd_reloc_outofrange;
-
- /* Work out which section the relocation is targetted at and the
- initial relocation command value. */
-
- /* Get symbol value. (Common symbols are special.) */
- if (bfd_is_com_section (symbol->section))
- relocation = 0;
- else
- relocation = symbol->value;
-
- /* Convert input-section-relative symbol value to absolute + addend. */
- relocation += symbol->section->output_section->vma;
- relocation += symbol->section->output_offset;
- relocation += reloc->addend;
-
- if (reloc->howto->pc_relative == true)
+ /* Find a free structure. */
+ if (free_hi16s == NULL)
+ free_hi16s = bfd_zalloc (abfd, amt);
+
+ entry = free_hi16s;
+ free_hi16s = free_hi16s->next;
+
+ entry->addend = addend;
+ entry->address = address;
+ entry->counter = hi16s_counter ++;
+ entry->found = FALSE;
+ entry->next = previous_hi16s;
+ previous_hi16s = entry;
+
+ /* Cope with wrap around of our counter. */
+ if (hi16s_counter == 0)
{
- /* Here the variable relocation holds the final address of the
- symbol we are relocating against, plus any addend. */
- relocation -= isection->output_section->vma + isection->output_offset;
-
- /* Deal with pcrel_offset */
- relocation -= reloc->address;
+ /* XXX: Assume that all counter entries differ only in their low 16 bits. */
+ for (entry = previous_hi16s; entry != NULL; entry = entry->next)
+ entry->counter &= 0xffff;
+
+ hi16s_counter = 0x10000;
}
-
- /* I've got no clue... */
- reloc->addend = 0;
-
- switch (reloc->howto->type)
+}
+
+static bfd_byte *
+find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found)
+{
+ hi16s_location *match = NULL;
+ hi16s_location *entry;
+ hi16s_location *previous = NULL;
+ hi16s_location *prev;
+ bfd_byte *addr;
+
+ /* Search the table. Record the most recent entry that matches. */
+ for (entry = previous_hi16s; entry; entry = entry->next)
{
- default:
- /* fprintf (stderr, "reloc type %d not SUPPORTED\n", reloc->howto->type ); */
- return bfd_reloc_notsupported;
-
- case R_V850_22_PCREL:
- if (relocation > 0x1ffff || relocation < -0x200000)
- return bfd_reloc_overflow;
-
- if ((relocation % 2) != 0)
- return bfd_reloc_dangerous;
-
- insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc->address);
- insn &= ~0xfffe003f;
- insn |= (((relocation & 0xfffe) << 16)
- | ((relocation & 0x3f0000) >> 16));
- bfd_put_32 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_9_PCREL:
- if (relocation > 0xff || relocation < -0x100)
- return bfd_reloc_overflow;
-
- if ((relocation % 2) != 0)
- return bfd_reloc_dangerous;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= ~ 0xf870;
- insn |= ((relocation & 0x1f0) << 7) | ((relocation & 0x0e) << 3);
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_HI16_S:
- relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- relocation = (relocation >> 16) + ((relocation & 0x8000) != 0);
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_HI16:
- relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- relocation = (relocation >> 16);
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_LO16:
- relocation += (short)bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- /* Do not complain if value has top bit set, as this has been anticipated. */
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
+ if (entry->addend == addend
+ && (match == NULL || match->counter < entry->counter))
+ {
+ previous = prev;
+ match = entry;
+ }
- case R_V850_16:
- relocation += (short)bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- /* drop through */
-
- case R_V850_SDA_16_16_OFFSET:
- case R_V850_ZDA_16_16_OFFSET:
- case R_V850_TDA_16_16_OFFSET:
- if ((long)relocation > 0x7fff || (long)relocation < -0x8000)
- return bfd_reloc_overflow;
- bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_SDA_15_16_OFFSET:
- case R_V850_ZDA_15_16_OFFSET:
- if ((long)relocation > 0x7ffe || (long)relocation < -0x8000)
- return bfd_reloc_overflow;
-
- if (relocation & 1)
- return bfd_reloc_dangerous;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= 1;
- insn |= (relocation >> 1) & ~1;
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_TDA_6_8_OFFSET:
- if ((long) relocation > 0xfc || (long) relocation < 0)
- return bfd_reloc_overflow;
-
- if (relocation & 3)
- return bfd_reloc_dangerous;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= 0xff81;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_TDA_7_8_OFFSET:
- if ((long) relocation > 0xfe || (long) relocation < 0)
- return bfd_reloc_overflow;
-
- if (relocation & 1)
- return bfd_reloc_dangerous;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= 0xff80;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_TDA_7_7_OFFSET:
- if ((long) relocation > 0x7f || (long) relocation < 0)
- return bfd_reloc_overflow;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= 0xff80;
- insn |= relocation;
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
-/* start-sanitize-v850e */
- case R_V850_TDA_4_5_OFFSET:
- if ((long) relocation > 0x1e || (long) relocation < 0)
- return bfd_reloc_overflow;
-
- if (relocation & 1)
- return bfd_reloc_dangerous;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= 0xfff0;
- insn |= (relocation >> 1);
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_TDA_4_4_OFFSET:
- if ((long) relocation > 0xf || (long) relocation < 0)
- return bfd_reloc_overflow;
-
- insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
- insn &= 0xfff0;
- insn |= relocation;
-
- bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-
- case R_V850_ZDA_16_16_SPLIT_OFFSET:
- case R_V850_SDA_16_16_SPLIT_OFFSET:
- if ((long) relocation > 0xffff || (long) relocation < 0)
- return bfd_reloc_overflow;
-
- insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc->address);
-
- insn &= 0x0001ffdf;
- insn |= (relocation & 1) << 5;
- insn |= (relocation & ~1) << 16;
-
- bfd_put_32 (abfd, insn, (bfd_byte *)data + reloc->address);
- return bfd_reloc_ok;
-/* end-sanitize-v850e */
+ prev = entry;
}
- return bfd_reloc_continue;
-}
+ if (match == NULL)
+ return NULL;
-\f
-/*ARGSUSED*/
-static boolean
-v850_elf_is_local_label_name (abfd, name)
- bfd *abfd;
- const char *name;
-{
- return ((name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
- || (name[0] == '_' && name[1] == '.' && name[2] == 'L'
- && name[3] == '_'));
+ /* Extract the address. */
+ addr = match->address;
+
+ /* Remember if this entry has already been used before. */
+ if (already_found)
+ * already_found = match->found;
+
+ /* Note that this entry has now been used. */
+ match->found = TRUE;
+
+ return addr;
}
-\f
-/* Perform a relocation as part of a final link. */
-static bfd_reloc_status_type
-v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
- input_section, contents, offset, value,
- addend, info, sym_sec, is_local)
- reloc_howto_type * howto;
- bfd * input_bfd;
- bfd * output_bfd;
- asection * input_section;
- bfd_byte * contents;
- bfd_vma offset;
- bfd_vma value;
- bfd_vma addend;
- struct bfd_link_info * info;
- asection * sym_sec;
- int is_local;
-{
- unsigned long insn;
- unsigned long r_type = howto->type;
- bfd_byte * hit_data = contents + offset;
+/* Calculate the final operand value for a R_V850_LO16 or
+ R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
+ ADDEND is the sum of the relocation symbol and offset. Store the
+ operand value in *INSN and return true on success.
- switch (r_type)
- {
- case R_V850_9_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset);
- value -= offset;
+ The assembler has already done some of this: If the value stored in
+ the instruction has its 15th bit set, (counting from zero) then the
+ assembler will have added 1 to the value stored in the associated
+ HI16S reloc. So for example, these relocations:
- if ((long)value > 0xff || (long)value < -0x100)
- return bfd_reloc_overflow;
+ movhi hi( fred ), r0, r1
+ movea lo( fred ), r1, r1
- if ((value % 2) != 0)
- return bfd_reloc_dangerous;
+ will store 0 in the value fields for the MOVHI and MOVEA instructions
+ and addend will be the address of fred, but for these instructions:
- insn = bfd_get_16 (input_bfd, hit_data);
- insn &= 0x078f;
- insn |= ((value & 0x1f0) << 7) | ((value & 0x0e) << 3);
- bfd_put_16 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
-
- case R_V850_22_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset);
- value -= offset;
-
- if ((long)value > 0x1ffff || (long)value < -0x200000)
- return bfd_reloc_overflow;
+ movhi hi( fred + 0x123456), r0, r1
+ movea lo( fred + 0x123456), r1, r1
- if ((value % 2) != 0)
- return bfd_reloc_dangerous;
+ the value stored in the MOVHI instruction will be 0x12 and the value
+ stored in the MOVEA instruction will be 0x3456. If however the
+ instructions were:
- insn = bfd_get_32 (input_bfd, hit_data);
- insn &= 0x1ffc0;
- insn |= (((value & 0xfffe) << 16) | ((value & 0x3f0000) >> 16));
- bfd_put_32 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
-
- case R_V850_HI16_S:
- value += (short)bfd_get_16 (input_bfd, hit_data);
- value = (value >> 16) + ((value & 0x8000) != 0);
+ movhi hi( fred + 0x10ffff), r0, r1
+ movea lo( fred + 0x10ffff), r1, r1
- if ((long)value > 0x7fff || (long)value < -0x8000)
- return bfd_reloc_overflow;
+ then the value stored in the MOVHI instruction would be 0x11 (not
+ 0x10) and the value stored in the MOVEA instruction would be 0xffff.
+ Thus (assuming for the moment that the addend is 0), at run time the
+ MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
+ adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
+ the instructions were:
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ movhi hi( fred - 1), r0, r1
+ movea lo( fred - 1), r1, r1
- case R_V850_HI16:
- value += (short)bfd_get_16 (input_bfd, hit_data);
- value >>= 16;
+ then 0 is stored in the MOVHI instruction and -1 is stored in the
+ MOVEA instruction.
- if ((long)value > 0x7fff || (long)value < -0x8000)
- return bfd_reloc_overflow;
+ Overflow can occur if the addition of the value stored in the
+ instruction plus the addend sets the 15th bit when before it was clear.
+ This is because the 15th bit will be sign extended into the high part,
+ thus reducing its value by one, but since the 15th bit was originally
+ clear, the assembler will not have added 1 to the previous HI16S reloc
+ to compensate for this effect. For example:
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ movhi hi( fred + 0x123456), r0, r1
+ movea lo( fred + 0x123456), r1, r1
- case R_V850_LO16:
- value += (short)bfd_get_16 (input_bfd, hit_data);
- value &= 0xffff;
+ The value stored in HI16S reloc is 0x12, the value stored in the LO16
+ reloc is 0x3456. If we assume that the address of fred is 0x00007000
+ then the relocations become:
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
+ LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
- case R_V850_16:
- value += (short) bfd_get_16 (input_bfd, hit_data);
+ but when the instructions are executed, the MOVEA instruction's value
+ is signed extended, so the sum becomes:
- if ((long) value > 0x7fff || (long) value < -0x8000)
- return bfd_reloc_overflow;
+ 0x00120000
+ + 0xffffa456
+ ------------
+ 0x0011a456 but 'fred + 0x123456' = 0x0012a456
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ Note that if the 15th bit was set in the value stored in the LO16
+ reloc, then we do not have to do anything:
- case R_V850_ZDA_16_16_OFFSET:
- value -= sym_sec->output_section->vma;
- value += (short) bfd_get_16 (input_bfd, hit_data);
+ movhi hi( fred + 0x10ffff), r0, r1
+ movea lo( fred + 0x10ffff), r1, r1
- if ((long) value > 0x7fff || (long) value < -0x8000)
- return bfd_reloc_overflow;
+ HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
+ LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ 0x00110000
+ + 0x00006fff
+ ------------
+ 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
- case R_V850_ZDA_15_16_OFFSET:
- insn = bfd_get_16 (input_bfd, hit_data);
+ Overflow can also occur if the computation carries into the 16th bit
+ and it also results in the 15th bit having the same value as the 15th
+ bit of the original value. What happens is that the HI16S reloc
+ will have already examined the 15th bit of the original value and
+ added 1 to the high part if the bit is set. This compensates for the
+ sign extension of 15th bit of the result of the computation. But now
+ there is a carry into the 16th bit, and this has not been allowed for.
- value -= sym_sec->output_section->vma;
- value += ((insn & 0xfffe) << 1);
-
- if ((long) value > 0x7ffe || (long) value < -0x8000)
- return bfd_reloc_overflow;
+ So, for example if fred is at address 0xf000:
- value &= ~1;
- value |= (insn & 1);
-
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set]
+ movea lo( fred + 0xffff), r1, r1
- case R_V850_32:
- value += bfd_get_32 (input_bfd, hit_data);
- bfd_put_32 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
+ LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
- case R_V850_8:
- value += (char)bfd_get_8 (input_bfd, hit_data);
+ 0x00010000
+ + 0xffffefff
+ ------------
+ 0x0000efff but 'fred + 0xffff' = 0x0001efff
- if ((long)value > 0x7f || (long)value < -0x80)
- return bfd_reloc_overflow;
+ Similarly, if the 15th bit remains clear, but overflow occurs into
+ the 16th bit then (assuming the address of fred is 0xf000):
- bfd_put_8 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
+ movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear]
+ movea lo( fred + 0x7000), r1, r1
+ HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
+ LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
+
+ 0x00000000
+ + 0x00006fff
+ ------------
+ 0x00006fff but 'fred + 0x7000' = 0x00016fff
+
+ Note - there is no need to change anything if a carry occurs, and the
+ 15th bit changes its value from being set to being clear, as the HI16S
+ reloc will have already added in 1 to the high part for us:
+
+ movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set]
+ movea lo( fred + 0xffff), r1, r1
+
+ HI16S: 0x0001 + (0x00007000 >> 16)
+ LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
+
+ 0x00010000
+ + 0x00006fff (bit 15 not set, so the top half is zero)
+ ------------
+ 0x00016fff which is right (assuming that fred is at 0x7000)
+
+ but if the 15th bit goes from being clear to being set, then we must
+ once again handle overflow:
+
+ movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear]
+ movea lo( fred + 0x7000), r1, r1
+
+ HI16S: 0x0000 + (0x0000ffff >> 16)
+ LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
+
+ 0x00000000
+ + 0x00006fff (bit 15 not set, so the top half is zero)
+ ------------
+ 0x00006fff which is wrong (assuming that fred is at 0xffff). */
+
+static bfd_boolean
+v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
+ unsigned long addend)
+{
+#define BIT15_SET(x) ((x) & 0x8000)
+#define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
+
+ if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
+ || (OVERFLOWS (addend, *insn)
+ && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
+ {
+ bfd_boolean already_updated;
+ bfd_byte *hi16s_address = find_remembered_hi16s_reloc
+ (addend, & already_updated);
+
+ /* Amend the matching HI16_S relocation. */
+ if (hi16s_address != NULL)
+ {
+ if (! already_updated)
+ {
+ unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
+ hi_insn += 1;
+ bfd_put_16 (abfd, hi_insn, hi16s_address);
+ }
+ }
+ else
+ {
+ fprintf (stderr, _("FAILED to find previous HI16 reloc\n"));
+ return FALSE;
+ }
+ }
+#undef OVERFLOWS
+#undef BIT15_SET
+
+ /* Do not complain if value has top bit set, as this has been
+ anticipated. */
+ *insn = (*insn + addend) & 0xffff;
+ return TRUE;
+}
+
+/* FIXME: The code here probably ought to be removed and the code in reloc.c
+ allowed to do its stuff instead. At least for most of the relocs, anyway. */
+
+static bfd_reloc_status_type
+v850_elf_perform_relocation (bfd *abfd,
+ unsigned int r_type,
+ bfd_vma addend,
+ bfd_byte *address)
+{
+ unsigned long insn;
+ unsigned long result;
+ bfd_signed_vma saddend = (bfd_signed_vma) addend;
+
+ switch (r_type)
+ {
+ default:
+ return bfd_reloc_notsupported;
+
+ case R_V850_REL32:
+ case R_V850_ABS32:
+ bfd_put_32 (abfd, addend, address);
+ return bfd_reloc_ok;
+
+ case R_V850_22_PCREL:
+ if (saddend > 0x1fffff || saddend < -0x200000)
+ return bfd_reloc_overflow;
+
+ if ((addend % 2) != 0)
+ return bfd_reloc_dangerous;
+
+ insn = bfd_get_32 (abfd, address);
+ insn &= ~0xfffe003f;
+ insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
+ bfd_put_32 (abfd, (bfd_vma) insn, address);
+ return bfd_reloc_ok;
+
+ case R_V850_9_PCREL:
+ if (saddend > 0xff || saddend < -0x100)
+ return bfd_reloc_overflow;
+
+ if ((addend % 2) != 0)
+ return bfd_reloc_dangerous;
+
+ insn = bfd_get_16 (abfd, address);
+ insn &= ~ 0xf870;
+ insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
+ break;
+
+ case R_V850_HI16:
+ addend += (bfd_get_16 (abfd, address) << 16);
+ addend = (addend >> 16);
+ insn = addend;
+ break;
+
+ case R_V850_HI16_S:
+ /* Remember where this relocation took place. */
+ remember_hi16s_reloc (abfd, addend, address);
+
+ addend += (bfd_get_16 (abfd, address) << 16);
+ addend = (addend >> 16) + ((addend & 0x8000) != 0);
+
+ /* This relocation cannot overflow. */
+ if (addend > 0x7fff)
+ addend = 0;
+
+ insn = addend;
+ break;
+
+ case R_V850_LO16:
+ insn = bfd_get_16 (abfd, address);
+ if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend))
+ return bfd_reloc_overflow;
+ break;
+
+ case R_V850_8:
+ addend += (char) bfd_get_8 (abfd, address);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x7f || saddend < -0x80)
+ return bfd_reloc_overflow;
+
+ bfd_put_8 (abfd, addend, address);
+ return bfd_reloc_ok;
+
+ case R_V850_CALLT_16_16_OFFSET:
+ addend += bfd_get_16 (abfd, address);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0xffff || saddend < 0)
+ return bfd_reloc_overflow;
+
+ insn = addend;
+ break;
+
+ case R_V850_16:
case R_V850_SDA_16_16_OFFSET:
+ case R_V850_ZDA_16_16_OFFSET:
+ case R_V850_TDA_16_16_OFFSET:
+ addend += bfd_get_16 (abfd, address);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x7fff || saddend < -0x8000)
+ return bfd_reloc_overflow;
+
+ insn = addend;
+ break;
+
+ case R_V850_SDA_15_16_OFFSET:
+ case R_V850_ZDA_15_16_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += (insn & 0xfffe);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x7ffe || saddend < -0x8000)
+ return bfd_reloc_overflow;
+
+ if (addend & 1)
+ return bfd_reloc_dangerous;
+
+ insn = (addend &~ (bfd_vma) 1) | (insn & 1);
+ break;
+
+ case R_V850_TDA_6_8_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += ((insn & 0x7e) << 1);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0xfc || saddend < 0)
+ return bfd_reloc_overflow;
+
+ if (addend & 3)
+ return bfd_reloc_dangerous;
+
+ insn &= 0xff81;
+ insn |= (addend >> 1);
+ break;
+
+ case R_V850_TDA_7_8_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += ((insn & 0x7f) << 1);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0xfe || saddend < 0)
+ return bfd_reloc_overflow;
+
+ if (addend & 1)
+ return bfd_reloc_dangerous;
+
+ insn &= 0xff80;
+ insn |= (addend >> 1);
+ break;
+
+ case R_V850_TDA_7_7_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += insn & 0x7f;
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x7f || saddend < 0)
+ return bfd_reloc_overflow;
+
+ insn &= 0xff80;
+ insn |= addend;
+ break;
+
+ case R_V850_TDA_4_5_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += ((insn & 0xf) << 1);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x1e || saddend < 0)
+ return bfd_reloc_overflow;
+
+ if (addend & 1)
+ return bfd_reloc_dangerous;
+
+ insn &= 0xfff0;
+ insn |= (addend >> 1);
+ break;
+
+ case R_V850_TDA_4_4_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += insn & 0xf;
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0xf || saddend < 0)
+ return bfd_reloc_overflow;
+
+ insn &= 0xfff0;
+ insn |= addend;
+ break;
+
+ case R_V850_LO16_SPLIT_OFFSET:
+ insn = bfd_get_32 (abfd, address);
+ result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5);
+ if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
+ return bfd_reloc_overflow;
+ insn = (((result << 16) & 0xfffe0000)
+ | ((result << 5) & 0x20)
+ | (insn & ~0xfffe0020));
+ bfd_put_32 (abfd, insn, address);
+ return bfd_reloc_ok;
+
+ case R_V850_ZDA_16_16_SPLIT_OFFSET:
+ case R_V850_SDA_16_16_SPLIT_OFFSET:
+ insn = bfd_get_32 (abfd, address);
+ addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x7fff || saddend < -0x8000)
+ return bfd_reloc_overflow;
+
+ insn &= 0x0001ffdf;
+ insn |= (addend & 1) << 5;
+ insn |= (addend &~ (bfd_vma) 1) << 16;
+
+ bfd_put_32 (abfd, (bfd_vma) insn, address);
+ return bfd_reloc_ok;
+
+ case R_V850_CALLT_6_7_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += ((insn & 0x3f) << 1);
+
+ saddend = (bfd_signed_vma) addend;
+
+ if (saddend > 0x7e || saddend < 0)
+ return bfd_reloc_overflow;
+
+ if (addend & 1)
+ return bfd_reloc_dangerous;
+
+ insn &= 0xff80;
+ insn |= (addend >> 1);
+ break;
+
+ case R_V850_GNU_VTINHERIT:
+ case R_V850_GNU_VTENTRY:
+ return bfd_reloc_ok;
+
+ }
+
+ bfd_put_16 (abfd, (bfd_vma) insn, address);
+ return bfd_reloc_ok;
+}
+\f
+/* Insert the addend into the instruction. */
+
+static bfd_reloc_status_type
+v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc,
+ asymbol *symbol,
+ void * data ATTRIBUTE_UNUSED,
+ asection *isection,
+ bfd *obfd,
+ char **err ATTRIBUTE_UNUSED)
+{
+ long relocation;
+
+ /* If there is an output BFD,
+ and the symbol is not a section name (which is only defined at final link time),
+ and either we are not putting the addend into the instruction
+ or the addend is zero, so there is nothing to add into the instruction
+ then just fixup the address and return. */
+ if (obfd != NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc->howto->partial_inplace
+ || reloc->addend == 0))
+ {
+ reloc->address += isection->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* Catch relocs involving undefined symbols. */
+ if (bfd_is_und_section (symbol->section)
+ && (symbol->flags & BSF_WEAK) == 0
+ && obfd == NULL)
+ return bfd_reloc_undefined;
+
+ /* We handle final linking of some relocs ourselves. */
+
+ /* Is the address of the relocation really within the section? */
+ if (reloc->address > bfd_get_section_limit (abfd, isection))
+ return bfd_reloc_outofrange;
+
+ /* Work out which section the relocation is targeted at and the
+ initial relocation command value. */
+
+ if (reloc->howto->pc_relative)
+ return bfd_reloc_ok;
+
+ /* Get symbol value. (Common symbols are special.) */
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ /* Convert input-section-relative symbol value to absolute + addend. */
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc->addend;
+
+ reloc->addend = relocation;
+ return bfd_reloc_ok;
+}
+
+/* This function is used for relocs which are only used
+ for relaxing, which the linker should otherwise ignore. */
+
+static bfd_reloc_status_type
+v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ void * data ATTRIBUTE_UNUSED,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ if (output_bfd != NULL)
+ reloc_entry->address += input_section->output_offset;
+
+ return bfd_reloc_ok;
+}
+/* Note: It is REQUIRED that the 'type' value of each entry
+ in this array match the index of the entry in the array. */
+static reloc_howto_type v850_elf_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. */
+ v850_elf_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. */
+ v850_elf_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. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_HI16_S", /* Name. */
+ FALSE, /* 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. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_HI16", /* Name. */
+ FALSE, /* 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. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_LO16", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffff, /* Src_mask. */
+ 0xffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* Simple 32bit reloc. */
+ HOWTO (R_V850_ABS32, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 32, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_ABS32", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffffffff, /* Src_mask. */
+ 0xffffffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* Simple 16bit reloc. */
+ HOWTO (R_V850_16, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ bfd_elf_generic_reloc, /* Special_function. */
+ "R_V850_16", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffff, /* Src_mask. */
+ 0xffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* Simple 8bit reloc. */
+ HOWTO (R_V850_8, /* Type. */
+ 0, /* Rightshift. */
+ 0, /* Size (0 = byte, 1 = short, 2 = long). */
+ 8, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ bfd_elf_generic_reloc, /* Special_function. */
+ "R_V850_8", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xff, /* Src_mask. */
+ 0xff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 16 bit offset from the short data area pointer. */
+ HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_SDA_16_16_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffff, /* Src_mask. */
+ 0xffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 15 bit offset from the short data area pointer. */
+ HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */
+ 1, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 1, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_SDA_15_16_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xfffe, /* Src_mask. */
+ 0xfffe, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 16 bit offset from the zero data area pointer. */
+ HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_ZDA_16_16_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffff, /* Src_mask. */
+ 0xffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 15 bit offset from the zero data area pointer. */
+ HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */
+ 1, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 1, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_ZDA_15_16_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xfffe, /* Src_mask. */
+ 0xfffe, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 6 bit offset from the tiny data area pointer. */
+ HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */
+ 2, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 8, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 1, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_TDA_6_8_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x7e, /* Src_mask. */
+ 0x7e, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 8 bit offset from the tiny data area pointer. */
+ HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */
+ 1, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 8, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_TDA_7_8_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x7f, /* Src_mask. */
+ 0x7f, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 7 bit offset from the tiny data area pointer. */
+ HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 7, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_TDA_7_7_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x7f, /* Src_mask. */
+ 0x7f, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 16 bit offset from the tiny data area pointer! */
+ HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_TDA_16_16_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffff, /* Src_mask. */
+ 0xfff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 5 bit offset from the tiny data area pointer. */
+ HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */
+ 1, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 5, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_TDA_4_5_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x0f, /* Src_mask. */
+ 0x0f, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 4 bit offset from the tiny data area pointer. */
+ HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 4, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_TDA_4_4_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x0f, /* Src_mask. */
+ 0x0f, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 16 bit offset from the short data area pointer. */
+ HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xfffe0020, /* Src_mask. */
+ 0xfffe0020, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 16 bit offset from the zero data area pointer. */
+ HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xfffe0020, /* Src_mask. */
+ 0xfffe0020, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 6 bit offset from the call table base pointer. */
+ HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 7, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_CALLT_6_7_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x3f, /* Src_mask. */
+ 0x3f, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* 16 bit offset from the call table base pointer. */
+ HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_CALLT_16_16_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffff, /* Src_mask. */
+ 0xffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* GNU extension to record C++ vtable hierarchy */
+ HOWTO (R_V850_GNU_VTINHERIT, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ NULL, /* Special_function. */
+ "R_V850_GNU_VTINHERIT", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* GNU extension to record C++ vtable member usage */
+ HOWTO (R_V850_GNU_VTENTRY, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */
+ "R_V850_GNU_VTENTRY", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall
+ pseudo-op when it finds a function call which can be relaxed. */
+ HOWTO (R_V850_LONGCALL, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 32, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_signed, /* Complain_on_overflow. */
+ v850_elf_ignore_reloc, /* Special_function. */
+ "R_V850_LONGCALL", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ TRUE), /* PCrel_offset. */
+
+ /* Indicates a .longjump pseudo-op. The compiler will generate a
+ .longjump pseudo-op when it finds a branch which can be relaxed. */
+ HOWTO (R_V850_LONGJUMP, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 32, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_signed, /* Complain_on_overflow. */
+ v850_elf_ignore_reloc, /* Special_function. */
+ "R_V850_LONGJUMP", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ TRUE), /* PCrel_offset. */
+
+ HOWTO (R_V850_ALIGN, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_unsigned, /* Complain_on_overflow. */
+ v850_elf_ignore_reloc, /* Special_function. */
+ "R_V850_ALIGN", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0, /* Src_mask. */
+ 0, /* Dst_mask. */
+ TRUE), /* PCrel_offset. */
+
+ /* Simple pc-relative 32bit reloc. */
+ HOWTO (R_V850_REL32, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 32, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_REL32", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffffffff, /* Src_mask. */
+ 0xffffffff, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+
+ /* An ld.bu version of R_V850_LO16. */
+ HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ FALSE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_LO16_SPLIT_OFFSET", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xfffe0020, /* Src_mask. */
+ 0xfffe0020, /* Dst_mask. */
+ FALSE), /* PCrel_offset. */
+};
+
+/* Map BFD reloc types to V850 ELF reloc types. */
+
+struct v850_elf_reloc_map
+{
+ /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an
+ unsigned char. */
+ bfd_reloc_code_real_type bfd_reloc_val;
+ unsigned int elf_reloc_val;
+};
+
+static const struct v850_elf_reloc_map v850_elf_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 },
+ { BFD_RELOC_32, R_V850_ABS32 },
+ { BFD_RELOC_32_PCREL, R_V850_REL32 },
+ { BFD_RELOC_16, R_V850_16 },
+ { BFD_RELOC_8, R_V850_8 },
+ { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
+ { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
+ { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
+ { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
+ { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
+ { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
+ { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
+ { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
+ { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
+ { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
+ { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET },
+ { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
+ { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
+ { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
+ { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
+ { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
+ { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
+ { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
+ { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
+ { BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
+
+};
+\f
+/* Map a bfd relocation into the appropriate howto structure. */
+
+static reloc_howto_type *
+v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ unsigned int i;
+
+ for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
+ if (v850_elf_reloc_map[i].bfd_reloc_val == code)
+ {
+ unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
+
+ BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
+
+ return v850_elf_howto_table + elf_reloc_val;
+ }
+
+ return NULL;
+}
+
+static reloc_howto_type *
+v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]);
+ i++)
+ if (v850_elf_howto_table[i].name != NULL
+ && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0)
+ return &v850_elf_howto_table[i];
+
+ return NULL;
+}
+\f
+/* Set the howto pointer for an V850 ELF reloc. */
+
+static void
+v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *cache_ptr,
+ Elf_Internal_Rela *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 = &v850_elf_howto_table[r_type];
+}
+
+/* Set the howto pointer for a V850 ELF reloc (type RELA). */
+
+static void
+v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent * cache_ptr,
+ Elf_Internal_Rela *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 = &v850_elf_howto_table[r_type];
+}
+\f
+static bfd_boolean
+v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
+{
+ return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
+ || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
+}
+\f
+/* We overload some of the bfd_reloc error codes for own purposes. */
+#define bfd_reloc_gp_not_found bfd_reloc_other
+#define bfd_reloc_ep_not_found bfd_reloc_continue
+#define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
+
+/* Perform a relocation as part of a final link. */
+
+static bfd_reloc_status_type
+v850_elf_final_link_relocate (reloc_howto_type *howto,
+ bfd *input_bfd,
+ bfd *output_bfd ATTRIBUTE_UNUSED,
+ asection *input_section,
+ bfd_byte *contents,
+ bfd_vma offset,
+ bfd_vma value,
+ bfd_vma addend,
+ struct bfd_link_info *info,
+ asection *sym_sec,
+ int is_local ATTRIBUTE_UNUSED)
+{
+ unsigned int r_type = howto->type;
+ bfd_byte *hit_data = contents + offset;
+
+ /* Adjust the value according to the relocation. */
+ switch (r_type)
+ {
+ case R_V850_9_PCREL:
+ value -= (input_section->output_section->vma
+ + input_section->output_offset);
+ value -= offset;
+ break;
+
+ case R_V850_22_PCREL:
+ value -= (input_section->output_section->vma
+ + input_section->output_offset
+ + offset);
+
+ /* If the sign extension will corrupt the value then we have overflowed. */
+ if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000))
+ return bfd_reloc_overflow;
+
+ /* Only the bottom 24 bits of the PC are valid. */
+ value = SEXT24 (value);
+ break;
+
+ case R_V850_REL32:
+ value -= (input_section->output_section->vma
+ + input_section->output_offset
+ + offset);
+ break;
+
+ case R_V850_HI16_S:
+ case R_V850_HI16:
+ case R_V850_LO16:
+ case R_V850_LO16_SPLIT_OFFSET:
+ case R_V850_16:
+ case R_V850_ABS32:
+ case R_V850_8:
+ break;
+
+ case R_V850_ZDA_15_16_OFFSET:
+ case R_V850_ZDA_16_16_OFFSET:
+ case R_V850_ZDA_16_16_SPLIT_OFFSET:
+ if (sym_sec == NULL)
+ return bfd_reloc_undefined;
+
+ value -= sym_sec->output_section->vma;
+ break;
+
+ case R_V850_SDA_15_16_OFFSET:
+ case R_V850_SDA_16_16_OFFSET:
+ case R_V850_SDA_16_16_SPLIT_OFFSET:
{
unsigned long gp;
struct bfd_link_hash_entry * h;
- /* Get the value of __gp. */
- h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_other;
+ if (sym_sec == NULL)
+ return bfd_reloc_undefined;
+
+ /* Get the value of __gp. */
+ h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
+ if (h == NULL
+ || h->type != bfd_link_hash_defined)
+ return bfd_reloc_gp_not_found;
+
+ gp = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+
+ value -= sym_sec->output_section->vma;
+ value -= (gp - sym_sec->output_section->vma);
+ }
+ break;
+
+ case R_V850_TDA_4_4_OFFSET:
+ case R_V850_TDA_4_5_OFFSET:
+ case R_V850_TDA_16_16_OFFSET:
+ case R_V850_TDA_7_7_OFFSET:
+ case R_V850_TDA_7_8_OFFSET:
+ case R_V850_TDA_6_8_OFFSET:
+ {
+ unsigned long ep;
+ struct bfd_link_hash_entry * h;
+
+ /* Get the value of __ep. */
+ h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
+ if (h == NULL
+ || h->type != bfd_link_hash_defined)
+ return bfd_reloc_ep_not_found;
+
+ ep = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+
+ value -= ep;
+ }
+ break;
+
+ case R_V850_CALLT_6_7_OFFSET:
+ {
+ unsigned long ctbp;
+ struct bfd_link_hash_entry * h;
+
+ /* Get the value of __ctbp. */
+ h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
+ if (h == NULL
+ || h->type != bfd_link_hash_defined)
+ return bfd_reloc_ctbp_not_found;
+
+ ctbp = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+ value -= ctbp;
+ }
+ break;
+
+ case R_V850_CALLT_16_16_OFFSET:
+ {
+ unsigned long ctbp;
+ struct bfd_link_hash_entry * h;
+
+ if (sym_sec == NULL)
+ return bfd_reloc_undefined;
+
+ /* Get the value of __ctbp. */
+ h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
+ if (h == NULL
+ || h->type != bfd_link_hash_defined)
+ return bfd_reloc_ctbp_not_found;
+
+ ctbp = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+
+ value -= sym_sec->output_section->vma;
+ value -= (ctbp - sym_sec->output_section->vma);
+ }
+ break;
+
+ case R_V850_NONE:
+ case R_V850_GNU_VTINHERIT:
+ case R_V850_GNU_VTENTRY:
+ case R_V850_LONGCALL:
+ case R_V850_LONGJUMP:
+ case R_V850_ALIGN:
+ return bfd_reloc_ok;
+
+ default:
+ return bfd_reloc_notsupported;
+ }
+
+ /* Perform the relocation. */
+ return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
+}
+\f
+/* Relocate an V850 ELF section. */
+
+static bfd_boolean
+v850_elf_relocate_section (bfd *output_bfd,
+ struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ Elf_Internal_Rela *relocs,
+ Elf_Internal_Sym *local_syms,
+ asection **local_sections)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+
+ /* Reset the list of remembered HI16S relocs to empty. */
+ free_hi16s = previous_hi16s;
+ previous_hi16s = NULL;
+ hi16s_counter = 0;
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ int r_type;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym *sym;
+ asection *sec;
+ struct elf_link_hash_entry *h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
+
+ if (r_type == R_V850_GNU_VTENTRY
+ || r_type == R_V850_GNU_VTINHERIT)
+ continue;
+
+ howto = v850_elf_howto_table + r_type;
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ }
+ else
+ {
+ bfd_boolean unresolved_reloc, warned;
+
+ /* Note - this check is delayed until now as it is possible and
+ valid to have a file without any symbols but with relocs that
+ can be processed. */
+ if (sym_hashes == NULL)
+ {
+ info->callbacks->warning
+ (info, "no hash table available",
+ NULL, input_bfd, input_section, (bfd_vma) 0);
+
+ return FALSE;
+ }
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
+ }
+
+ 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 (info->relocatable)
+ continue;
+
+ /* FIXME: We should use the addend, but the COFF relocations don't. */
+ r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend,
+ info, sec, h == NULL);
+
+ if (r != bfd_reloc_ok)
+ {
+ const char * name;
+ const char * msg = NULL;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name));
+ if (name == NULL || *name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ break;
- gp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
+ case bfd_reloc_undefined:
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section,
+ rel->r_offset, TRUE)))
+ return FALSE;
+ break;
- value -= sym_sec->output_section->vma;
- value -= (gp - sym_sec->output_section->vma);
- value += (short) bfd_get_16 (input_bfd, hit_data);
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ goto common_error;
- if ((long)value > 0x7fff || (long)value < -0x8000)
- return bfd_reloc_overflow;
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ goto common_error;
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
- }
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous relocation");
+ goto common_error;
- case R_V850_SDA_15_16_OFFSET:
- {
- unsigned long gp;
- struct bfd_link_hash_entry * h;
+ case bfd_reloc_gp_not_found:
+ msg = _("could not locate special linker symbol __gp");
+ goto common_error;
- /* Get the value of __gp. */
- h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_other;
+ case bfd_reloc_ep_not_found:
+ msg = _("could not locate special linker symbol __ep");
+ goto common_error;
- gp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
-
- value -= sym_sec->output_section->vma;
- value -= (gp - sym_sec->output_section->vma);
+ case bfd_reloc_ctbp_not_found:
+ msg = _("could not locate special linker symbol __ctbp");
+ goto common_error;
- insn = bfd_get_16 (input_bfd, hit_data);
-
- value += ((insn & 0xfffe) << 1);
-
- if ((long)value > 0x7ffe || (long)value < -0x8000)
- return bfd_reloc_overflow;
-
- value &= ~1;
- value |= (insn & 1);
-
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
- }
+ default:
+ msg = _("internal error: unknown error");
+ /* fall through */
- case R_V850_TDA_6_8_OFFSET:
+ common_error:
+ if (!((*info->callbacks->warning)
+ (info, msg, name, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ break;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+static asection *
+v850_elf_gc_mark_hook (asection *sec,
+ struct bfd_link_info *info,
+ Elf_Internal_Rela *rel,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
+{
+ if (h != NULL)
+ switch (ELF32_R_TYPE (rel->r_info))
{
- unsigned long ep;
- struct bfd_link_hash_entry * h;
-
- insn = bfd_get_16 (input_bfd, hit_data);
+ case R_V850_GNU_VTINHERIT:
+ case R_V850_GNU_VTENTRY:
+ return NULL;
+ }
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
+/* Set the right machine number. */
- value -= ep;
- value += ((insn & 0x7e) << 2);
-
- if ((long) value > 0xfc || (long) value < 0)
- return bfd_reloc_overflow;
-
- if ((value % 2) != 0)
- return bfd_reloc_dangerous;
-
- insn &= 0xff81;
- insn |= (value >> 1);
-
- bfd_put_16 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
- }
-
- case R_V850_TDA_7_8_OFFSET:
+static bfd_boolean
+v850_elf_object_p (bfd *abfd)
+{
+ switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
+ {
+ default:
+ case E_V850_ARCH:
+ bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850);
+ break;
+ case E_V850E_ARCH:
+ bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e);
+ break;
+ case E_V850E1_ARCH:
+ bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e1);
+ break;
+ }
+ return TRUE;
+}
+
+/* Store the machine number in the flags field. */
+
+static void
+v850_elf_final_write_processing (bfd *abfd,
+ bfd_boolean linker ATTRIBUTE_UNUSED)
+{
+ unsigned long val;
+
+ switch (bfd_get_mach (abfd))
+ {
+ default:
+ case bfd_mach_v850: val = E_V850_ARCH; break;
+ case bfd_mach_v850e: val = E_V850E_ARCH; break;
+ case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
+ }
+
+ elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
+ elf_elfheader (abfd)->e_flags |= val;
+}
+
+/* Function to keep V850 specific file flags. */
+
+static bfd_boolean
+v850_elf_set_private_flags (bfd *abfd, flagword flags)
+{
+ BFD_ASSERT (!elf_flags_init (abfd)
+ || elf_elfheader (abfd)->e_flags == flags);
+
+ elf_elfheader (abfd)->e_flags = flags;
+ elf_flags_init (abfd) = TRUE;
+ return TRUE;
+}
+
+/* Merge backend specific data from an object file
+ to the output object file when linking. */
+
+static bfd_boolean
+v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+{
+ flagword out_flags;
+ flagword in_flags;
+
+ if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ return TRUE;
+
+ in_flags = elf_elfheader (ibfd)->e_flags;
+ out_flags = elf_elfheader (obfd)->e_flags;
+
+ if (! elf_flags_init (obfd))
+ {
+ /* If the input is the default architecture then do not
+ bother setting the flags for the output architecture,
+ instead allow future merges to do this. If no future
+ merges ever set these flags then they will retain their
+ unitialised values, which surprise surprise, correspond
+ to the default values. */
+ if (bfd_get_arch_info (ibfd)->the_default)
+ return TRUE;
+
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = in_flags;
+
+ if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
+ && bfd_get_arch_info (obfd)->the_default)
+ return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
+
+ return TRUE;
+ }
+
+ /* Check flag compatibility. */
+ if (in_flags == out_flags)
+ return TRUE;
+
+ if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
+ && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
+ {
+ /* Allow v850e1 binaries to be linked with v850e binaries.
+ Set the output binary to v850e. */
+ if ((in_flags & EF_V850_ARCH) == E_V850E1_ARCH
+ && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
+ return TRUE;
+
+ if ((in_flags & EF_V850_ARCH) == E_V850E_ARCH
+ && (out_flags & EF_V850_ARCH) == E_V850E1_ARCH)
+ {
+ elf_elfheader (obfd)->e_flags =
+ ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
+ return TRUE;
+ }
+
+ _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
+ ibfd);
+ }
+
+ return TRUE;
+}
+
+/* Display the flags field. */
+
+static bfd_boolean
+v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
+{
+ FILE * file = (FILE *) ptr;
+
+ BFD_ASSERT (abfd != NULL && ptr != NULL);
+
+ _bfd_elf_print_private_bfd_data (abfd, ptr);
+
+ /* xgettext:c-format */
+ fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
+
+ switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
+ {
+ default:
+ case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
+ case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
+ case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
+ }
+
+ fputc ('\n', file);
+
+ return TRUE;
+}
+
+/* V850 ELF uses four common sections. One is the usual one, and the
+ others are for (small) objects in one of the special data areas:
+ small, tiny and zero. All the objects are kept together, and then
+ referenced via the gp register, the ep register or the r0 register
+ respectively, which yields smaller, faster assembler code. This
+ approach is copied from elf32-mips.c. */
+
+static asection v850_elf_scom_section;
+static asymbol v850_elf_scom_symbol;
+static asymbol * v850_elf_scom_symbol_ptr;
+static asection v850_elf_tcom_section;
+static asymbol v850_elf_tcom_symbol;
+static asymbol * v850_elf_tcom_symbol_ptr;
+static asection v850_elf_zcom_section;
+static asymbol v850_elf_zcom_symbol;
+static asymbol * v850_elf_zcom_symbol_ptr;
+
+/* Given a BFD section, try to locate the
+ corresponding ELF section index. */
+
+static bfd_boolean
+v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ int *retval)
+{
+ if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
+ *retval = SHN_V850_SCOMMON;
+ else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
+ *retval = SHN_V850_TCOMMON;
+ else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
+ *retval = SHN_V850_ZCOMMON;
+ else
+ return FALSE;
+
+ return TRUE;
+}
+
+/* Handle the special V850 section numbers that a symbol may use. */
+
+static void
+v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
+{
+ elf_symbol_type * elfsym = (elf_symbol_type *) asym;
+ unsigned int indx;
+
+ indx = elfsym->internal_elf_sym.st_shndx;
+
+ /* If the section index is an "ordinary" index, then it may
+ refer to a v850 specific section created by the assembler.
+ Check the section's type and change the index it matches.
+
+ FIXME: Should we alter the st_shndx field as well ? */
+
+ if (indx < elf_numsections (abfd))
+ switch (elf_elfsections(abfd)[indx]->sh_type)
{
- unsigned long ep;
- struct bfd_link_hash_entry * h;
-
- insn = bfd_get_16 (input_bfd, hit_data);
+ case SHT_V850_SCOMMON:
+ indx = SHN_V850_SCOMMON;
+ break;
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */
+ case SHT_V850_TCOMMON:
+ indx = SHN_V850_TCOMMON;
+ break;
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
-
- value -= ep;
- value += ((insn & 0x7f) << 1);
-
- if ((long) value > 0xfe || (long) value < 0)
- return bfd_reloc_overflow;
-
- insn &= 0xff80;
- insn |= (value >> 1);
-
- bfd_put_16 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
+ case SHT_V850_ZCOMMON:
+ indx = SHN_V850_ZCOMMON;
+ break;
+
+ default:
+ break;
}
-
- case R_V850_TDA_7_7_OFFSET:
+
+ switch (indx)
+ {
+ case SHN_V850_SCOMMON:
+ if (v850_elf_scom_section.name == NULL)
+ {
+ /* Initialize the small common section. */
+ v850_elf_scom_section.name = ".scommon";
+ v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
+ v850_elf_scom_section.output_section = & v850_elf_scom_section;
+ v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
+ v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
+ v850_elf_scom_symbol.name = ".scommon";
+ v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
+ v850_elf_scom_symbol.section = & v850_elf_scom_section;
+ v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
+ }
+ asym->section = & v850_elf_scom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+
+ case SHN_V850_TCOMMON:
+ if (v850_elf_tcom_section.name == NULL)
+ {
+ /* Initialize the tcommon section. */
+ v850_elf_tcom_section.name = ".tcommon";
+ v850_elf_tcom_section.flags = SEC_IS_COMMON;
+ v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
+ v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
+ v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
+ v850_elf_tcom_symbol.name = ".tcommon";
+ v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
+ v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
+ v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
+ }
+ asym->section = & v850_elf_tcom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+
+ case SHN_V850_ZCOMMON:
+ if (v850_elf_zcom_section.name == NULL)
+ {
+ /* Initialize the zcommon section. */
+ v850_elf_zcom_section.name = ".zcommon";
+ v850_elf_zcom_section.flags = SEC_IS_COMMON;
+ v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
+ v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
+ v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
+ v850_elf_zcom_symbol.name = ".zcommon";
+ v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
+ v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
+ v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
+ }
+ asym->section = & v850_elf_zcom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+ }
+}
+
+/* Hook called by the linker routine which adds symbols from an object
+ file. We must handle the special v850 section numbers here. */
+
+static bfd_boolean
+v850_elf_add_symbol_hook (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ Elf_Internal_Sym *sym,
+ const char **namep ATTRIBUTE_UNUSED,
+ flagword *flagsp ATTRIBUTE_UNUSED,
+ asection **secp,
+ bfd_vma *valp)
+{
+ unsigned int indx = sym->st_shndx;
+
+ /* If the section index is an "ordinary" index, then it may
+ refer to a v850 specific section created by the assembler.
+ Check the section's type and change the index it matches.
+
+ FIXME: Should we alter the st_shndx field as well ? */
+
+ if (indx < elf_numsections (abfd))
+ switch (elf_elfsections(abfd)[indx]->sh_type)
{
- unsigned long ep;
- struct bfd_link_hash_entry * h;
-
- insn = bfd_get_16 (input_bfd, hit_data);
+ case SHT_V850_SCOMMON:
+ indx = SHN_V850_SCOMMON;
+ break;
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */
+ case SHT_V850_TCOMMON:
+ indx = SHN_V850_TCOMMON;
+ break;
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ep;
-
- value += insn & 0x7f;
-
- if ((long) value > 0x7f || (long) value < 0)
- return bfd_reloc_overflow;
-
- insn &= 0xff80;
- insn |= value;
- bfd_put_16 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
+ case SHT_V850_ZCOMMON:
+ indx = SHN_V850_ZCOMMON;
+ break;
+
+ default:
+ break;
}
-
- case R_V850_TDA_16_16_OFFSET:
- {
- unsigned long ep;
- struct bfd_link_hash_entry * h;
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_other;
+ switch (indx)
+ {
+ case SHN_V850_SCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".scommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+
+ case SHN_V850_TCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".tcommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+
+ case SHN_V850_ZCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".zcommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+ }
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ep;
-
- value += (short) bfd_get_16 (input_bfd, hit_data);
+ return TRUE;
+}
+
+static bfd_boolean
+v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED,
+ Elf_Internal_Sym *sym,
+ asection *input_sec,
+ struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
+{
+ /* If we see a common symbol, which implies a relocatable link, then
+ if a symbol was in a special common section in an input file, mark
+ it as a special common in the output file. */
+
+ if (sym->st_shndx == SHN_COMMON)
+ {
+ if (strcmp (input_sec->name, ".scommon") == 0)
+ sym->st_shndx = SHN_V850_SCOMMON;
+ else if (strcmp (input_sec->name, ".tcommon") == 0)
+ sym->st_shndx = SHN_V850_TCOMMON;
+ else if (strcmp (input_sec->name, ".zcommon") == 0)
+ sym->st_shndx = SHN_V850_ZCOMMON;
+ }
+
+ /* The price we pay for using h->other unused bits as flags in the
+ linker is cleaning up after ourselves. */
+
+ sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
+ | V850_OTHER_ERROR);
+
+ return TRUE;
+}
+
+static bfd_boolean
+v850_elf_section_from_shdr (bfd *abfd,
+ Elf_Internal_Shdr *hdr,
+ const char *name,
+ int shindex)
+{
+ /* There ought to be a place to keep ELF backend specific flags, but
+ at the moment there isn't one. We just keep track of the
+ sections by their name, instead. */
+
+ if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
+ return FALSE;
+
+ switch (hdr->sh_type)
+ {
+ case SHT_V850_SCOMMON:
+ case SHT_V850_TCOMMON:
+ case SHT_V850_ZCOMMON:
+ if (! bfd_set_section_flags (abfd, hdr->bfd_section,
+ (bfd_get_section_flags (abfd,
+ hdr->bfd_section)
+ | SEC_IS_COMMON)))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Set the correct type for a V850 ELF section. We do this
+ by the section name, which is a hack, but ought to work. */
+
+static bfd_boolean
+v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
+ Elf_Internal_Shdr *hdr,
+ asection *sec)
+{
+ const char * name;
+
+ name = bfd_get_section_name (abfd, sec);
+
+ if (strcmp (name, ".scommon") == 0)
+ hdr->sh_type = SHT_V850_SCOMMON;
+ else if (strcmp (name, ".tcommon") == 0)
+ hdr->sh_type = SHT_V850_TCOMMON;
+ else if (strcmp (name, ".zcommon") == 0)
+ hdr->sh_type = SHT_V850_ZCOMMON;
+
+ return TRUE;
+}
+
+/* Delete some bytes from a section while relaxing. */
+
+static bfd_boolean
+v850_elf_relax_delete_bytes (bfd *abfd,
+ asection *sec,
+ bfd_vma addr,
+ bfd_vma toaddr,
+ int count)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf32_External_Sym *extsyms;
+ Elf32_External_Sym *esym;
+ Elf32_External_Sym *esymend;
+ int index;
+ unsigned int sec_shndx;
+ bfd_byte *contents;
+ Elf_Internal_Rela *irel;
+ Elf_Internal_Rela *irelend;
+ struct elf_link_hash_entry *sym_hash;
+ Elf_Internal_Shdr *shndx_hdr;
+ Elf_External_Sym_Shndx *shndx;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
+
+ sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+
+ contents = elf_section_data (sec)->this_hdr.contents;
+
+ /* The deletion must stop at the next ALIGN reloc for an alignment
+ power larger than the number of bytes we are deleting. */
+
+ /* Actually delete the bytes. */
+#if (DEBUG_RELAX & 2)
+ fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
+ sec->name, addr, toaddr, count );
+#endif
+ memmove (contents + addr, contents + addr + count,
+ toaddr - addr - count);
+ memset (contents + toaddr-count, 0, count);
+
+ /* Adjust all the relocs. */
+ irel = elf_section_data (sec)->relocs;
+ irelend = irel + sec->reloc_count;
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
+
+ for (; irel < irelend; irel++)
+ {
+ bfd_vma raddr, paddr, symval;
+ Elf_Internal_Sym isym;
+
+ /* Get the new reloc address. */
+ raddr = irel->r_offset;
+ if ((raddr >= (addr + count) && raddr < toaddr))
+ irel->r_offset -= count;
+
+ if (raddr >= addr && raddr < addr + count)
+ {
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
+ (int) R_V850_NONE);
+ continue;
+ }
+
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
+ continue;
+
+ bfd_elf32_swap_symbol_in (abfd,
+ extsyms + ELF32_R_SYM (irel->r_info),
+ shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
+ & isym);
+
+ if (isym.st_shndx != sec_shndx)
+ continue;
+
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
+ {
+ symval = isym.st_value;
+#if (DEBUG_RELAX & 2)
+ {
+ char * name = bfd_elf_string_from_elf_section
+ (abfd, symtab_hdr->sh_link, isym.st_name);
+ fprintf (stderr,
+ "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
+ sec->name, name, isym.st_name,
+ sec->output_section->vma, sec->output_offset,
+ isym.st_value, irel->r_addend);
+ }
+#endif
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry * h;
- if ((long)value > 0x7fff || (long)value < -0x8000)
- return bfd_reloc_overflow;
+ /* An external symbol. */
+ indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
- bfd_put_16 (input_bfd, value, hit_data);
- return bfd_reloc_ok;
- }
+ h = elf_sym_hashes (abfd) [indx];
+ BFD_ASSERT (h != NULL);
-/* start-sanitize-v850e */
- case R_V850_TDA_4_5_OFFSET:
- {
- unsigned long ep;
- struct bfd_link_hash_entry * h;
-
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */
+ symval = h->root.u.def.value;
+#if (DEBUG_RELAX & 2)
+ fprintf (stderr,
+ "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
+ sec->name, h->root.root.string, h->root.u.def.value,
+ sec->output_section->vma, sec->output_offset, irel->r_addend);
+#endif
+ }
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ep;
-
- insn = bfd_get_16 (input_bfd, hit_data);
-
- value += ((insn & 0xf) << 1);
-
- if ((long) value > 0x1e || (long) value < 0)
- return bfd_reloc_overflow;
-
- insn &= 0xfff0;
- insn |= (value >> 1);
- bfd_put_16 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
- }
-
- case R_V850_TDA_4_4_OFFSET:
- {
- unsigned long ep;
- struct bfd_link_hash_entry * h;
-
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */
+ paddr = symval + irel->r_addend;
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ep;
-
- insn = bfd_get_16 (input_bfd, hit_data);
-
- value += insn & 0xf;
-
- if ((long) value > 0xf || (long) value < 0)
- return bfd_reloc_overflow;
-
- insn &= 0xfff0;
- insn |= value;
- bfd_put_16 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
- }
-
- case R_V850_SDA_16_16_SPLIT_OFFSET:
- {
- unsigned long gp;
- struct bfd_link_hash_entry * h;
+ if ( (symval >= addr + count && symval < toaddr)
+ && (paddr < addr + count || paddr >= toaddr))
+ irel->r_addend += count;
+ else if ( (symval < addr + count || symval >= toaddr)
+ && (paddr >= addr + count && paddr < toaddr))
+ irel->r_addend -= count;
+ }
- /* Get the value of __gp. */
- h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_other;
+ /* Adjust the local symbols defined in this section. */
+ esym = extsyms;
+ esymend = esym + symtab_hdr->sh_info;
- gp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
-
- value -= sym_sec->output_section->vma;
- value -= (gp - sym_sec->output_section->vma);
+ for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
+ {
+ Elf_Internal_Sym isym;
- insn = bfd_get_32 (input_bfd, hit_data);
-
- value += ((insn & 0xfffe0000) >> 16);
- value += ((insn & 0x20) >> 5);
-
- if ((long)value > 0x7fff || (long)value < -0x8000)
- return bfd_reloc_overflow;
-
- insn &= 0x0001ffdf;
- insn |= (value & 1) << 5;
- insn |= (value & ~1) << 16;
-
- bfd_put_32 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
- }
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
- case R_V850_ZDA_16_16_SPLIT_OFFSET:
- insn = bfd_get_32 (input_bfd, hit_data);
-
- value -= sym_sec->output_section->vma;
- value += ((insn & 0xfffe0000) >> 16);
- value += ((insn & 0x20) >> 5);
-
- if ((long)value > 0x7fff || (long)value < -0x8000)
- return bfd_reloc_overflow;
-
- insn &= 0x0001ffdf;
- insn |= (value & 1) << 5;
- insn |= (value & ~1) << 16;
-
- bfd_put_32 (input_bfd, insn, hit_data);
- return bfd_reloc_ok;
+ if (isym.st_shndx == sec_shndx
+ && isym.st_value >= addr + count
+ && isym.st_value < toaddr)
+ {
+ isym.st_value -= count;
-/* end-sanitize-v850e */
-
-
- case R_V850_NONE:
- return bfd_reloc_ok;
+ if (isym.st_value + isym.st_size >= toaddr)
+ isym.st_size += count;
- default:
- return bfd_reloc_notsupported;
- }
-}
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
+ }
+ else if (isym.st_shndx == sec_shndx
+ && isym.st_value < addr + count)
+ {
+ if (isym.st_value+isym.st_size >= addr + count
+ && isym.st_value+isym.st_size < toaddr)
+ isym.st_size -= count;
-\f
-/* Relocate an V850 ELF section. */
-static boolean
-v850_elf_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd * output_bfd;
- struct bfd_link_info * info;
- bfd * input_bfd;
- asection * input_section;
- bfd_byte * contents;
- Elf_Internal_Rela * relocs;
- Elf_Internal_Sym * local_syms;
- asection ** local_sections;
-{
- Elf_Internal_Shdr * symtab_hdr;
- struct elf_link_hash_entry ** sym_hashes;
- Elf_Internal_Rela * rel;
- Elf_Internal_Rela * relend;
+ if (isym.st_value >= addr
+ && isym.st_value < addr + count)
+ isym.st_value = addr;
- symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
+ }
+ }
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
+ /* Now adjust the global symbols defined in this section. */
+ esym = extsyms + symtab_hdr->sh_info;
+ esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
+
+ for (index = 0; esym < esymend; esym ++, index ++)
{
- int r_type;
- reloc_howto_type * howto;
- unsigned long r_symndx;
- Elf_Internal_Sym * sym;
- asection * sec;
- struct elf_link_hash_entry * h;
- bfd_vma relocation;
- bfd_reloc_status_type r;
+ Elf_Internal_Sym isym;
- r_symndx = ELF32_R_SYM (rel->r_info);
- r_type = ELF32_R_TYPE (rel->r_info);
- howto = v850_elf_howto_table + r_type;
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
+ sym_hash = elf_sym_hashes (abfd) [index];
- if (info->relocateable)
+ if (isym.st_shndx == sec_shndx
+ && ((sym_hash)->root.type == bfd_link_hash_defined
+ || (sym_hash)->root.type == bfd_link_hash_defweak)
+ && (sym_hash)->root.u.def.section == sec
+ && (sym_hash)->root.u.def.value >= addr + count
+ && (sym_hash)->root.u.def.value < toaddr)
{
- /* This is a relocateable link. We don't have to change
- anything, unless the reloc is against a section symbol,
- in which case we have to adjust according to where the
- section symbol winds up in the output section. */
- if (r_symndx < symtab_hdr->sh_info)
+ if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
{
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- sec = local_sections[r_symndx];
- rel->r_addend += sec->output_offset + sym->st_value;
- }
+ isym.st_size += count;
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
- continue;
+ (sym_hash)->root.u.def.value -= count;
}
-
- /* This is a final link. */
- h = NULL;
- sym = NULL;
- sec = NULL;
- if (r_symndx < symtab_hdr->sh_info)
+ else if (isym.st_shndx == sec_shndx
+ && ((sym_hash)->root.type == bfd_link_hash_defined
+ || (sym_hash)->root.type == bfd_link_hash_defweak)
+ && (sym_hash)->root.u.def.section == sec
+ && (sym_hash)->root.u.def.value < addr + count)
{
- sym = local_syms + r_symndx;
- sec = local_sections[r_symndx];
- relocation = (sec->output_section->vma
- + sec->output_offset
- + sym->st_value);
-#if 0
- {
- char * name;
- name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link, sym->st_name);
- name = (name == NULL) ? "<none>" : name;
-fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x rel %x\n", sec->name, name, sym->st_name,
- sec->output_section->vma, sec->output_offset, sym->st_value, rel->r_addend, rel);
- }
-#endif
+ if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
+ && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
+ isym.st_size -= count;
+
+ if ((sym_hash)->root.u.def.value >= addr
+ && (sym_hash)->root.u.def.value < addr + count)
+ (sym_hash)->root.u.def.value = addr;
+
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
- else
+
+ if (shndx)
+ ++ shndx;
+ }
+
+ return TRUE;
+}
+
+#define NOP_OPCODE (0x0000)
+#define MOVHI 0x0640 /* 4byte */
+#define MOVHI_MASK 0x07e0
+#define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte */
+#define MOVHI_R2(insn) ((insn) >> 11)
+#define MOVEA 0x0620 /* 2byte */
+#define MOVEA_MASK 0x07e0
+#define MOVEA_R1(insn) ((insn) & 0x1f)
+#define MOVEA_R2(insn) ((insn) >> 11)
+#define JARL_4 0x00040780 /* 4byte */
+#define JARL_4_MASK 0xFFFF07FF
+#define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
+#define ADD_I 0x0240 /* 2byte */
+#define ADD_I_MASK 0x07e0
+#define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte */
+#define ADD_R2(insn) ((insn) >> 11)
+#define JMP_R 0x0060 /* 2byte */
+#define JMP_R_MASK 0xFFE0
+#define JMP_R1(insn) ((insn) & 0x1f)
+
+static bfd_boolean
+v850_elf_relax_section (bfd *abfd,
+ asection *sec,
+ struct bfd_link_info *link_info,
+ bfd_boolean *again)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *internal_relocs;
+ Elf_Internal_Rela *irel;
+ Elf_Internal_Rela *irelend;
+ Elf_Internal_Rela *irelalign = NULL;
+ Elf_Internal_Sym *isymbuf = NULL;
+ bfd_byte *contents = NULL;
+ bfd_vma addr = 0;
+ bfd_vma toaddr;
+ int align_pad_size = 0;
+ bfd_boolean result = TRUE;
+
+ *again = FALSE;
+
+ if (link_info->relocatable
+ || (sec->flags & SEC_RELOC) == 0
+ || sec->reloc_count == 0)
+ return TRUE;
+
+ symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
+
+ internal_relocs = (_bfd_elf_link_read_relocs
+ (abfd, sec, NULL, NULL, link_info->keep_memory));
+ if (internal_relocs == NULL)
+ goto error_return;
+
+ irelend = internal_relocs + sec->reloc_count;
+
+ while (addr < sec->size)
+ {
+ toaddr = sec->size;
+
+ for (irel = internal_relocs; irel < irelend; irel ++)
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
+ && irel->r_offset > addr
+ && irel->r_offset < toaddr)
+ toaddr = irel->r_offset;
+
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
+ addr, toaddr, align_pad_size);
+#endif
+ if (irelalign)
{
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
-
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
+ bfd_vma alignto;
+ bfd_vma alignmoveto;
+
+ alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
+ alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
+
+ if (alignmoveto < alignto)
{
- sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
+ unsigned int i;
+
+ align_pad_size = alignto - alignmoveto;
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
+ alignmoveto, toaddr, align_pad_size);
+#endif
+ if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
+ toaddr, align_pad_size))
+ goto error_return;
+
+ for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
+ (i + 1) < toaddr; i += 2)
+ bfd_put_16 (abfd, NOP_OPCODE, contents + i);
+
+ addr = alignmoveto;
}
- else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset)))
- return false;
- relocation = 0;
- }
+ align_pad_size = 0;
}
- /* FIXME: We should use the addend, but the COFF relocations
- don't. */
- r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
- input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend,
- info, sec, h == NULL);
-
- if (r != bfd_reloc_ok)
+ for (irel = internal_relocs; irel < irelend; irel++)
{
- const char * name;
- const char * msg = (const char *)0;
+ bfd_vma laddr;
+ bfd_vma addend;
+ bfd_vma symval;
+ int insn[5];
+ int no_match = -1;
+ Elf_Internal_Rela *hi_irelfn;
+ Elf_Internal_Rela *lo_irelfn;
+ Elf_Internal_Rela *irelcall;
+ bfd_signed_vma foff;
+
+ if (! (irel->r_offset >= addr && irel->r_offset < toaddr
+ && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
+ || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
+ continue;
+
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
+ irel->r_info,
+ irel->r_offset,
+ irel->r_addend );
+#endif
- if (h != NULL)
- name = h->root.root.string;
- else
+ /* Get the section contents. */
+ if (contents == NULL)
{
- name = (bfd_elf_string_from_elf_section
- (input_bfd, symtab_hdr->sh_link, sym->st_name));
- if (name == NULL || *name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ if (elf_section_data (sec)->this_hdr.contents != NULL)
+ contents = elf_section_data (sec)->this_hdr.contents;
+ else
+ {
+ if (! bfd_malloc_and_get_section (abfd, sec, &contents))
+ goto error_return;
+ }
}
- switch (r)
+ /* Read this BFD's local symbols if we haven't done so already. */
+ if (isymbuf == NULL && symtab_hdr->sh_info != 0)
{
- case bfd_reloc_overflow:
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return false;
- break;
+ isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (isymbuf == NULL)
+ isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == NULL)
+ goto error_return;
+ }
- case bfd_reloc_undefined:
- fprintf (stderr, "undef2 %s\n", name );
- if (! ((*info->callbacks->undefined_symbol)
- (info, name, input_bfd, input_section,
- rel->r_offset)))
- return false;
- break;
+ laddr = irel->r_offset;
- case bfd_reloc_outofrange:
- msg = "internal error: out of range error";
- goto common_error;
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
+ {
+ /* Check code for -mlong-calls output. */
+ if (laddr + 16 <= (bfd_vma) sec->size)
+ {
+ insn[0] = bfd_get_16 (abfd, contents + laddr);
+ insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
+ insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
+ insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
+ insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
+
+ if ((insn[0] & MOVHI_MASK) != MOVHI
+ || MOVHI_R1 (insn[0]) != 0)
+ no_match = 0;
+
+ if (no_match < 0
+ && ((insn[1] & MOVEA_MASK) != MOVEA
+ || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
+ no_match = 1;
+
+ if (no_match < 0
+ && (insn[2] & JARL_4_MASK) != JARL_4)
+ no_match = 2;
+
+ if (no_match < 0
+ && ((insn[3] & ADD_I_MASK) != ADD_I
+ || ADD_I5 (insn[3]) != 4
+ || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
+ no_match = 3;
+
+ if (no_match < 0
+ && ((insn[4] & JMP_R_MASK) != JMP_R
+ || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
+ no_match = 4;
+ }
+ else
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset));
- case bfd_reloc_notsupported:
- msg = "internal error: unsupported relocation error";
- goto common_error;
+ continue;
+ }
- case bfd_reloc_dangerous:
- msg = "internal error: dangerous relocation";
- goto common_error;
+ if (no_match >= 0)
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
- case bfd_reloc_other:
- msg = "could not locate special linker symbol __gp";
- goto common_error;
+ continue;
+ }
- case bfd_reloc_continue:
- msg = "could not locate special linker symbol __ep";
- goto common_error;
+ /* Get the reloc for the address from which the register is
+ being loaded. This reloc will tell us which function is
+ actually being called. */
+ for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
+ if (hi_irelfn->r_offset == laddr + 2
+ && ELF32_R_TYPE (hi_irelfn->r_info)
+ == (int) R_V850_HI16_S)
+ break;
+
+ for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
+ if (lo_irelfn->r_offset == laddr + 6
+ && ELF32_R_TYPE (lo_irelfn->r_info)
+ == (int) R_V850_LO16)
+ break;
+
+ for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
+ if (irelcall->r_offset == laddr + 8
+ && ELF32_R_TYPE (irelcall->r_info)
+ == (int) R_V850_22_PCREL)
+ break;
+
+ if ( hi_irelfn == irelend
+ || lo_irelfn == irelend
+ || irelcall == irelend)
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
- default:
- msg = "internal error: unknown error";
- /* fall through */
+ continue;
+ }
- common_error:
- if (!((*info->callbacks->warning)
- (info, msg, name, input_bfd, input_section,
- rel->r_offset)))
- return false;
- break;
- }
- }
- }
+ if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Sym * isym;
- return true;
-}
+ /* A local symbol. */
+ isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
-/* Set the right machine number. */
-static boolean
-v850_elf_object_p (abfd)
- bfd *abfd;
-{
- switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
- {
- default:
- case E_V850_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, 0); break;
-/* start-sanitize-v850e */
- case E_V850E_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); break;
-/* end-sanitize-v850e */
-/* start-sanitize-v850eq */
- case E_V850EQ_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850eq); break;
-/* end-sanitize-v850eq */
- }
-}
+ symval = isym->st_value;
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry * h;
+
+ /* An external symbol. */
+ indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+
+ if ( h->root.type != bfd_link_hash_defined
+ && h->root.type != bfd_link_hash_defweak)
+ /* This appears to be a reference to an undefined
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
+ continue;
+
+ symval = h->root.u.def.value;
+ }
-/* Store the machine number in the flags field. */
-void
-v850_elf_final_write_processing (abfd, linker)
- bfd * abfd;
- boolean linker;
-{
- unsigned long val;
+ if (symval + irelcall->r_addend != irelcall->r_offset + 4)
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
- switch (bfd_get_mach (abfd))
- {
- default:
- case 0: val = E_V850_ARCH; break;
-/* start-sanitize-v850e */
- case bfd_mach_v850e: val = E_V850E_ARCH; break;
-/* end-sanitize-v850e */
-/* start-sanitize-v850eq */
- case bfd_mach_v850eq: val = E_V850EQ_ARCH; break;
-/* end-sanitize-v850eq */
- }
+ continue;
+ }
- elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
- elf_elfheader (abfd)->e_flags |= val;
-}
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Sym *isym;
+ asection *sym_sec;
+
+ /* A local symbol. */
+ isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
+
+ if (isym->st_shndx == SHN_UNDEF)
+ sym_sec = bfd_und_section_ptr;
+ else if (isym->st_shndx == SHN_ABS)
+ sym_sec = bfd_abs_section_ptr;
+ else if (isym->st_shndx == SHN_COMMON)
+ sym_sec = bfd_com_section_ptr;
+ else
+ sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ symval = (isym->st_value
+ + sym_sec->output_section->vma
+ + sym_sec->output_offset);
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry *h;
+
+ /* An external symbol. */
+ indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+
+ if ( h->root.type != bfd_link_hash_defined
+ && h->root.type != bfd_link_hash_defweak)
+ /* This appears to be a reference to an undefined
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
+ continue;
+
+ symval = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
-/* Function to keep V850 specific file flags. */
-boolean
-v850_elf_set_private_flags (abfd, flags)
- bfd * abfd;
- flagword flags;
-{
- BFD_ASSERT (!elf_flags_init (abfd)
- || elf_elfheader (abfd)->e_flags == flags);
+ addend = irel->r_addend;
+
+ foff = (symval + addend
+ - (irel->r_offset
+ + sec->output_section->vma
+ + sec->output_offset
+ + 4));
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
+ irel->r_offset,
+ (irel->r_offset
+ + sec->output_section->vma
+ + sec->output_offset),
+ symval, addend, foff);
+#endif
- elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = true;
- return true;
-}
+ if (foff < -0x100000 || foff >= 0x100000)
+ /* After all that work, we can't shorten this function call. */
+ continue;
+
+ /* For simplicity of coding, we are going to modify the section
+ contents, the section relocs, and the BFD symbol table. We
+ must tell the rest of the code not to free up this
+ information. It would be possible to instead create a table
+ of changes which have to be made, as is done in coff-mips.c;
+ that would be more work, but would require less memory when
+ the linker is run. */
+ elf_section_data (sec)->relocs = internal_relocs;
+ elf_section_data (sec)->this_hdr.contents = contents;
+ symtab_hdr->contents = (bfd_byte *) isymbuf;
+
+ /* Replace the long call with a jarl. */
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
+
+ addend = 0;
+
+ if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
+ /* If this needs to be changed because of future relaxing,
+ it will be handled here like other internal IND12W
+ relocs. */
+ bfd_put_32 (abfd,
+ 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
+ contents + irel->r_offset);
+ else
+ /* We can't fully resolve this yet, because the external
+ symbol value may be changed by future relaxing.
+ We let the final link phase handle it. */
+ bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
+ contents + irel->r_offset);
+
+ hi_irelfn->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
+ lo_irelfn->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
+ irelcall->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
+
+ if (! v850_elf_relax_delete_bytes (abfd, sec,
+ irel->r_offset + 4, toaddr, 12))
+ goto error_return;
+
+ align_pad_size += 12;
+ }
+ else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
+ {
+ /* Check code for -mlong-jumps output. */
+ if (laddr + 10 <= (bfd_vma) sec->size)
+ {
+ insn[0] = bfd_get_16 (abfd, contents + laddr);
+ insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
+ insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
+
+ if ((insn[0] & MOVHI_MASK) != MOVHI
+ || MOVHI_R1 (insn[0]) != 0)
+ no_match = 0;
+
+ if (no_match < 0
+ && ((insn[1] & MOVEA_MASK) != MOVEA
+ || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
+ no_match = 1;
+
+ if (no_match < 0
+ && ((insn[2] & JMP_R_MASK) != JMP_R
+ || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
+ no_match = 4;
+ }
+ else
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset));
-/* Copy backend specific data from one object module to another */
-boolean
-v850_elf_copy_private_bfd_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
-{
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
+ continue;
+ }
- BFD_ASSERT (!elf_flags_init (obfd)
- || (elf_elfheader (obfd)->e_flags
- == elf_elfheader (ibfd)->e_flags));
+ if (no_match >= 0)
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
- elf_gp (obfd) = elf_gp (ibfd);
- elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
- elf_flags_init (obfd) = true;
- return true;
-}
+ continue;
+ }
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-boolean
-v850_elf_merge_private_bfd_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
-{
- flagword old_flags;
- flagword new_flags;
+ /* Get the reloc for the address from which the register is
+ being loaded. This reloc will tell us which function is
+ actually being called. */
+ for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
+ if (hi_irelfn->r_offset == laddr + 2
+ && ELF32_R_TYPE (hi_irelfn->r_info) == (int) R_V850_HI16_S)
+ break;
+
+ for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
+ if (lo_irelfn->r_offset == laddr + 6
+ && ELF32_R_TYPE (lo_irelfn->r_info) == (int) R_V850_LO16)
+ break;
+
+ if ( hi_irelfn == irelend
+ || lo_irelfn == irelend)
+ {
+ ((*_bfd_error_handler)
+ ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
+ bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
+ continue;
+ }
- new_flags = elf_elfheader (ibfd)->e_flags;
- old_flags = elf_elfheader (obfd)->e_flags;
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Sym * isym;
+ asection * sym_sec;
+
+ /* A local symbol. */
+ isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
+
+ if (isym->st_shndx == SHN_UNDEF)
+ sym_sec = bfd_und_section_ptr;
+ else if (isym->st_shndx == SHN_ABS)
+ sym_sec = bfd_abs_section_ptr;
+ else if (isym->st_shndx == SHN_COMMON)
+ sym_sec = bfd_com_section_ptr;
+ else
+ sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ symval = (isym->st_value
+ + sym_sec->output_section->vma
+ + sym_sec->output_offset);
+#ifdef DEBUG_RELAX
+ {
+ char * name = bfd_elf_string_from_elf_section
+ (abfd, symtab_hdr->sh_link, isym->st_name);
+
+ fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
+ sym_sec->name, name, isym->st_name,
+ sym_sec->output_section->vma,
+ sym_sec->output_offset,
+ isym->st_value, irel->r_addend);
+ }
+#endif
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry * h;
+
+ /* An external symbol. */
+ indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+
+ if ( h->root.type != bfd_link_hash_defined
+ && h->root.type != bfd_link_hash_defweak)
+ /* This appears to be a reference to an undefined
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
+ continue;
+
+ symval = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+#ifdef DEBUG_RELAX
+ fprintf (stderr,
+ "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
+ sec->name, h->root.root.string, h->root.u.def.value,
+ sec->output_section->vma, sec->output_offset, irel->r_addend);
+#endif
+ }
- if (! elf_flags_init (obfd))
- {
- elf_flags_init (obfd) = true;
- elf_elfheader (obfd)->e_flags = new_flags;
+ addend = irel->r_addend;
+
+ foff = (symval + addend
+ - (irel->r_offset
+ + sec->output_section->vma
+ + sec->output_offset
+ + 4));
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
+ irel->r_offset,
+ (irel->r_offset
+ + sec->output_section->vma
+ + sec->output_offset),
+ symval, addend, foff);
+#endif
+ if (foff < -0x100000 || foff >= 0x100000)
+ /* After all that work, we can't shorten this function call. */
+ continue;
+
+ /* For simplicity of coding, we are going to modify the section
+ contents, the section relocs, and the BFD symbol table. We
+ must tell the rest of the code not to free up this
+ information. It would be possible to instead create a table
+ of changes which have to be made, as is done in coff-mips.c;
+ that would be more work, but would require less memory when
+ the linker is run. */
+ elf_section_data (sec)->relocs = internal_relocs;
+ elf_section_data (sec)->this_hdr.contents = contents;
+ symtab_hdr->contents = (bfd_byte *) isymbuf;
+
+ if (foff < -0x100 || foff >= 0x100)
+ {
+ /* Replace the long jump with a jr. */
+
+ irel->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
+
+ irel->r_addend = addend;
+ addend = 0;
+
+ if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
+ /* If this needs to be changed because of future relaxing,
+ it will be handled here like other internal IND12W
+ relocs. */
+ bfd_put_32 (abfd,
+ 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
+ contents + irel->r_offset);
+ else
+ /* We can't fully resolve this yet, because the external
+ symbol value may be changed by future relaxing.
+ We let the final link phase handle it. */
+ bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
+
+ hi_irelfn->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
+ lo_irelfn->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
+ if (!v850_elf_relax_delete_bytes (abfd, sec,
+ irel->r_offset + 4, toaddr, 6))
+ goto error_return;
+
+ align_pad_size += 6;
+ }
+ else
+ {
+ /* Replace the long jump with a br. */
+
+ irel->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
+
+ irel->r_addend = addend;
+ addend = 0;
+
+ if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
+ /* If this needs to be changed because of future relaxing,
+ it will be handled here like other internal IND12W
+ relocs. */
+ bfd_put_16 (abfd,
+ 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
+ contents + irel->r_offset);
+ else
+ /* We can't fully resolve this yet, because the external
+ symbol value may be changed by future relaxing.
+ We let the final link phase handle it. */
+ bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
+
+ hi_irelfn->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
+ lo_irelfn->r_info =
+ ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
+ if (!v850_elf_relax_delete_bytes (abfd, sec,
+ irel->r_offset + 2, toaddr, 8))
+ goto error_return;
+
+ align_pad_size += 8;
+ }
+ }
+ }
- if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
- && bfd_get_arch_info (obfd)->the_default)
+ irelalign = NULL;
+ for (irel = internal_relocs; irel < irelend; irel++)
{
- return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
+ && irel->r_offset == toaddr)
+ {
+ irel->r_offset -= align_pad_size;
+
+ if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
+ irelalign = irel;
+ }
}
- return true;
+ addr = toaddr;
}
- /* Check flag compatibility. */
-
- if (new_flags == old_flags)
- return true;
-
- if ((new_flags & EF_V850_ARCH) != (old_flags & EF_V850_ARCH))
+ if (!irelalign)
{
- _bfd_error_handler ("%s: Architecture mismatch with previous modules",
- bfd_get_filename (ibfd));
- bfd_set_error (bfd_error_bad_value);
- return false;
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax pad %d shorten %d -> %d\n",
+ align_pad_size,
+ sec->size,
+ sec->size - align_pad_size);
+#endif
+ sec->size -= align_pad_size;
}
- return true;
+ finish:
+ if (internal_relocs != NULL
+ && elf_section_data (sec)->relocs != internal_relocs)
+ free (internal_relocs);
+
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
+ free (contents);
+
+ if (isymbuf != NULL
+ && symtab_hdr->contents != (bfd_byte *) isymbuf)
+ free (isymbuf);
+
+ return result;
+
+ error_return:
+ result = FALSE;
+ goto finish;
}
-/* Display the flags field */
-static boolean
-v850_elf_print_private_bfd_data (abfd, ptr)
- bfd * abfd;
- PTR ptr;
+static const struct bfd_elf_special_section v850_elf_special_sections[] =
{
- FILE * file = (FILE *) ptr;
-
- BFD_ASSERT (abfd != NULL && ptr != NULL)
-
- fprintf (file, "private flags = %x", elf_elfheader (abfd)->e_flags);
-
- switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
- {
- default:
- case E_V850_ARCH: fprintf (file, ": v850 architecture"); break;
-/* start-sanitize-v850e */
- case E_V850E_ARCH: fprintf (file, ": v850e architecture"); break;
-/* end-sanitize-v850e */
-/* start-sanitize-v850eq */
- case E_V850EQ_ARCH: fprintf (file, ": v850eq architecture"); break;
-/* end-sanitize-v850eq */
- }
-
- fputc ('\n', file);
-
- return true;
-}
+ { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
+ { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_EXECINSTR) },
+ { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
+ + SHF_V850_GPREL) },
+ { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
+ + SHF_V850_R0REL) },
+ { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_GPREL) },
+ { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_GPREL) },
+ { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_GPREL) },
+ { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_EPREL) },
+ { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_R0REL) },
+ { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_EPREL) },
+ { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_R0REL) },
+ { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_R0REL) },
+ { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ + SHF_V850_R0REL) },
+ { NULL, 0, 0, 0, 0 }
+};
\f
#define TARGET_LITTLE_SYM bfd_elf32_v850_vec
#define TARGET_LITTLE_NAME "elf32-v850"
#define ELF_ARCH bfd_arch_v850
-#define ELF_MACHINE_CODE EM_CYGNUS_V850
+#define ELF_MACHINE_CODE EM_V850
+#define ELF_MACHINE_ALT1 EM_CYGNUS_V850
+#define ELF_MACHINE_ALT2 EM_V800 /* This is the value used by the GreenHills toolchain. */
#define ELF_MAXPAGESIZE 0x1000
-
-#define elf_info_to_howto 0
+
+#define elf_info_to_howto v850_elf_info_to_howto_rela
#define elf_info_to_howto_rel v850_elf_info_to_howto_rel
+
#define elf_backend_check_relocs v850_elf_check_relocs
#define elf_backend_relocate_section v850_elf_relocate_section
#define elf_backend_object_p v850_elf_object_p
#define elf_backend_final_write_processing v850_elf_final_write_processing
+#define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
+#define elf_backend_symbol_processing v850_elf_symbol_processing
+#define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
+#define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
+#define elf_backend_section_from_shdr v850_elf_section_from_shdr
+#define elf_backend_fake_sections v850_elf_fake_sections
+#define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
+#define elf_backend_special_sections v850_elf_special_sections
+
+#define elf_backend_can_gc_sections 1
+#define elf_backend_rela_normal 1
+
#define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
#define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
-#define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
+#define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
#define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
+#define bfd_elf32_bfd_relax_section v850_elf_relax_section
#define elf_symbol_leading_char '_'
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