/* V850-specific support for 32-bit ELF
- Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1996-2015 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.
+ 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. */
-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. */
/* 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"
-/* sign-extend a 24-bit number */
-#define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000)
-
-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 void v850_elf_info_to_howto_rela
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
-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 **));
-static bfd_reloc_status_type v850_elf_perform_relocation
- PARAMS ((bfd *, int, bfd_vma, bfd_byte *));
-static boolean v850_elf_check_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
-static void remember_hi16s_reloc
- PARAMS ((bfd *, bfd_vma, bfd_byte *));
-static bfd_byte * find_remembered_hi16s_reloc
- PARAMS ((bfd_vma, boolean *));
-static bfd_reloc_status_type v850_elf_final_link_relocate
- PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *, bfd_vma,
- bfd_vma, bfd_vma, struct bfd_link_info *, asection *, int));
-static boolean v850_elf_object_p
- PARAMS ((bfd *));
-static boolean v850_elf_fake_sections
- PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
-static void v850_elf_final_write_processing
- PARAMS ((bfd *, boolean));
-static boolean v850_elf_set_private_flags
- PARAMS ((bfd *, flagword));
-static boolean v850_elf_copy_private_bfd_data
- PARAMS ((bfd *, bfd *));
-static boolean v850_elf_merge_private_bfd_data
- PARAMS ((bfd *, bfd *));
-static boolean v850_elf_print_private_bfd_data
- PARAMS ((bfd *, PTR));
-static boolean v850_elf_section_from_bfd_section
- PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *));
-static void v850_elf_symbol_processing
- PARAMS ((bfd *, asymbol *));
-static boolean v850_elf_add_symbol_hook
- PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
- const char **, flagword *, asection **, bfd_vma *));
-static boolean v850_elf_link_output_symbol_hook
- PARAMS ((bfd *, struct bfd_link_info *, const char *,
- Elf_Internal_Sym *, asection *));
-static boolean v850_elf_section_from_shdr
- PARAMS ((bfd *, Elf_Internal_Shdr *, char *));
-
-/* 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_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 */
- v850_elf_reloc, /* special_function */
- "R_V850_32", /* 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 */
-
-};
-
-/* 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 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 },
- { 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 },
- { 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 },
-
-};
-\f
-/* Map a bfd relocation into the appropriate howto structure */
-static reloc_howto_type *
-v850_elf_reloc_type_lookup (abfd, code)
- bfd * abfd ATTRIBUTE_UNUSED;
- 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 ATTRIBUTE_UNUSED;
- arelent * cache_ptr;
- Elf32_Internal_Rel * dst;
-{
- unsigned int r_type;
+/* Sign-extend a 17-bit number. */
+#define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
- 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];
-}
+/* Sign-extend a 22-bit number. */
+#define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
-/* Set the howto pointer for a V850 ELF reloc (type RELA). */
-static void
-v850_elf_info_to_howto_rela (abfd, cache_ptr, dst)
- bfd * abfd ATTRIBUTE_UNUSED;
- arelent * cache_ptr;
- Elf32_Internal_Rela *dst;
-{
- unsigned int r_type;
+static reloc_howto_type v850_elf_howto_table[];
- 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
/* 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 *dynobj;
+ bfd_boolean ret = TRUE;
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 v850_reloc_type r_type;
+ unsigned int 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;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sreloc = NULL;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
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;
+
+ /* PR15323, ref flags aren't set for references in the same
+ object. */
+ h->root.non_ir_ref = 1;
+ }
- r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
switch (r_type)
{
default:
- case R_V850_NONE:
- case R_V850_9_PCREL:
- case R_V850_22_PCREL:
- case R_V850_HI16_S:
- case R_V850_HI16:
- case R_V850_LO16:
- case R_V850_32:
- case R_V850_16:
- case R_V850_8:
- case R_V850_CALLT_6_7_OFFSET:
- case R_V850_CALLT_16_16_OFFSET:
break;
/* This relocation describes the C++ object vtable hierarchy.
Reconstruct it for later use during GC. */
case R_V850_GNU_VTINHERIT:
- if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return false;
+ 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. */
+ /* This relocation describes which C++ vtable entries
+ are actually used. Record for later use during GC. */
case R_V850_GNU_VTENTRY:
- if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return false;
+ 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:
case R_V850_SDA_16_16_OFFSET:
case R_V850_SDA_15_16_OFFSET:
+ case R_V810_GPWLO_1:
+ case R_V850_HWLO:
+ case R_V850_HWLO_1:
other = V850_OTHER_SDA;
common = ".scommon";
goto small_data_common;
common = ".zcommon";
goto small_data_common;
- case R_V850_TDA_4_5_OFFSET:
case R_V850_TDA_4_4_OFFSET:
+ case R_V850_TDA_4_5_OFFSET:
+ case R_V850_TDA_7_7_OFFSET:
case R_V850_TDA_6_8_OFFSET:
case R_V850_TDA_7_8_OFFSET:
- case R_V850_TDA_7_7_OFFSET:
case R_V850_TDA_16_16_OFFSET:
other = V850_OTHER_TDA;
common = ".tcommon";
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)
{
sprintf (buff, msg, h->root.root.string);
info->callbacks->warning (info, buff, h->root.root.string,
- abfd, h->root.u.def.section, 0);
+ 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;
}
-/*
- * 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.
- */
+/* 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
{
- bfd_vma addend;
- bfd_byte * address;
- unsigned long counter;
- boolean found;
+ bfd_vma addend;
+ bfd_byte * address;
+ unsigned long counter;
+ bfd_boolean found;
struct hi16s_location * next;
}
hi16s_location;
-static hi16s_location * previous_hi16s;
-static hi16s_location * free_hi16s;
-static unsigned long hi16s_counter;
+static hi16s_location * previous_hi16s;
+static hi16s_location * free_hi16s;
+static unsigned long hi16s_counter;
static void
-remember_hi16s_reloc (abfd, addend, address)
- bfd * abfd;
- bfd_vma addend;
- bfd_byte * address;
+remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
{
hi16s_location * entry = NULL;
+ bfd_size_type amt = sizeof (* free_hi16s);
/* Find a free structure. */
if (free_hi16s == NULL)
- free_hi16s = (hi16s_location *) bfd_zalloc (abfd, sizeof (* free_hi16s));
+ 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->found = FALSE;
entry->next = previous_hi16s;
previous_hi16s = entry;
/* Cope with wrap around of our counter. */
if (hi16s_counter == 0)
{
- /* XXX - Assume that all counter entries differ only in their low 16 bits. */
+ /* 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;
}
-
- return;
}
static bfd_byte *
-find_remembered_hi16s_reloc (addend, already_found)
- bfd_vma addend;
- boolean * already_found;
+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;
+ hi16s_location *match = NULL;
+ hi16s_location *entry;
+ bfd_byte *addr;
/* Search the table. Record the most recent entry that matches. */
for (entry = previous_hi16s; entry; entry = entry->next)
if (entry->addend == addend
&& (match == NULL || match->counter < entry->counter))
{
- previous = prev;
match = entry;
}
-
- prev = entry;
}
if (match == NULL)
/* Extract the address. */
addr = match->address;
- /* Remeber if this entry has already been used before. */
+ /* 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;
+ match->found = TRUE;
return addr;
}
+/* 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.
+
+ 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:
+
+ movhi hi( fred ), r0, r1
+ movea lo( fred ), r1, r1
+
+ 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:
+
+ movhi hi( fred + 0x123456 ), r0, r1
+ movea lo( fred + 0x123456 ), r1, r1
+
+ 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:
+
+ movhi hi( fred + 0x10ffff ), r0, r1
+ movea lo( fred + 0x10ffff ), r1, r1
+
+ 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:
+
+ movhi hi( fred - 1 ), r0, r1
+ movea lo( fred - 1 ), r1, r1
+
+ then 0 is stored in the MOVHI instruction and -1 is stored in the
+ MOVEA instruction.
+
+ 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:
+
+ movhi hi( fred + 0x123456 ), r0, r1
+ movea lo( fred + 0x123456 ), r1, r1
+
+ 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:
+
+ HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
+ LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
+
+ but when the instructions are executed, the MOVEA instruction's value
+ is signed extended, so the sum becomes:
+
+ 0x00120000
+ + 0xffffa456
+ ------------
+ 0x0011a456 but 'fred + 0x123456' = 0x0012a456
+
+ Note that if the 15th bit was set in the value stored in the LO16
+ reloc, then we do not have to do anything:
+
+ movhi hi( fred + 0x10ffff ), r0, r1
+ movea lo( fred + 0x10ffff ), r1, r1
+
+ HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
+ LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
+
+ 0x00110000
+ + 0x00006fff
+ ------------
+ 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
+
+ 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.
+
+ So, for example if fred is at address 0xf000:
+
+ movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
+ movea lo( fred + 0xffff ), r1, r1
+
+ HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
+ LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
+
+ 0x00010000
+ + 0xffffefff
+ ------------
+ 0x0000efff but 'fred + 0xffff' = 0x0001efff
+
+ Similarly, if the 15th bit remains clear, but overflow occurs into
+ the 16th bit then (assuming the address of fred is 0xf000):
+
+ 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
+ {
+ (*_bfd_error_handler) (_("FAILED to find previous HI16 reloc"));
+ 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, anwyay. */
+ allowed to do its stuff instead. At least for most of the relocs, anyway. */
+
static bfd_reloc_status_type
-v850_elf_perform_relocation (abfd, r_type, addend, address)
- bfd * abfd;
- int r_type;
- bfd_vma addend;
- bfd_byte * address;
+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:
- /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */
+#ifdef DEBUG
+ fprintf (stderr, "reloc number %d not recognised\n", r_type);
+#endif
return bfd_reloc_notsupported;
- case R_V850_32:
+ case R_V850_REL32:
+ case R_V850_ABS32:
+ case R_V810_WORD:
+ case R_V850_PC32:
bfd_put_32 (abfd, addend, address);
return bfd_reloc_ok;
+ case R_V850_WLO23:
+ case R_V850_23:
+ insn = bfd_get_32 (abfd, address);
+ insn &= ~((0x7f << 4) | (0x7fff80 << (16-7)));
+ insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7));
+ bfd_put_32 (abfd, (bfd_vma) insn, address);
+ return bfd_reloc_ok;
+
+ case R_V850_PCR22:
case R_V850_22_PCREL:
if (saddend > 0x1fffff || saddend < -0x200000)
return bfd_reloc_overflow;
insn = bfd_get_32 (abfd, address);
insn &= ~0xfffe003f;
insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
- bfd_put_32 (abfd, insn, address);
+ bfd_put_32 (abfd, (bfd_vma) insn, address);
return bfd_reloc_ok;
+ case R_V850_PC17:
+ case R_V850_17_PCREL:
+ if (saddend > 0xffff || saddend < -0x10000)
+ return bfd_reloc_overflow;
+
+ if ((addend % 2) != 0)
+ return bfd_reloc_dangerous;
+
+ insn = bfd_get_32 (abfd, address);
+ insn &= ~ 0xfffe0010;
+ insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4));
+ break;
+
+ case R_V850_PC16U:
+ case R_V850_16_PCREL:
+ if ((saddend < -0xffff) || (saddend > 0))
+ return bfd_reloc_overflow;
+
+ if ((addend % 2) != 0)
+ return bfd_reloc_dangerous;
+
+ insn = bfd_get_16 (abfd, address);
+ insn &= ~0xfffe;
+ insn |= (-addend & 0xfffe);
+ break;
+
+ case R_V850_PC9:
case R_V850_9_PCREL:
if (saddend > 0xff || saddend < -0x100)
return bfd_reloc_overflow;
insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
break;
+ case R_V810_WHI:
case R_V850_HI16:
addend += (bfd_get_16 (abfd, address) << 16);
addend = (addend >> 16);
insn = addend;
break;
+ case R_V810_WHI1:
case R_V850_HI16_S:
/* Remember where this relocation took place. */
remember_hi16s_reloc (abfd, addend, address);
addend = (addend >> 16) + ((addend & 0x8000) != 0);
/* This relocation cannot overflow. */
- if (addend > 0x7fff)
+ if (addend > 0xffff)
addend = 0;
insn = addend;
break;
+ case R_V810_WLO:
case R_V850_LO16:
- /* Calculate the sum of the value stored in the instruction and the
- addend and check for overflow from the low 16 bits into the high
- 16 bits. 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:
+ insn = bfd_get_16 (abfd, address);
+ if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend))
+ return bfd_reloc_overflow;
+ break;
- movhi hi( fred ), r0, r1
- movea lo( fred ), r1, r1
+ case R_V810_BYTE:
+ case R_V850_8:
+ addend += (char) bfd_get_8 (abfd, address);
- 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:
+ saddend = (bfd_signed_vma) addend;
- movhi hi( fred + 0x123456), r0, r1
- movea lo( fred + 0x123456), r1, r1
+ if (saddend > 0x7f || saddend < -0x80)
+ return bfd_reloc_overflow;
- 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:
+ bfd_put_8 (abfd, addend, address);
+ return bfd_reloc_ok;
- movhi hi( fred + 0x10ffff), r0, r1
- movea lo( fred + 0x10ffff), r1, r1
+ case R_V850_CALLT_16_16_OFFSET:
+ addend += bfd_get_16 (abfd, address);
- 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:
+ saddend = (bfd_signed_vma) addend;
- movhi hi( fred - 1), r0, r1
- movea lo( fred - 1), r1, r1
+ if (saddend > 0xffff || saddend < 0)
+ return bfd_reloc_overflow;
- then 0 is stored in the MOVHI instruction and -1 is stored in the
- MOVEA instruction.
+ insn = addend;
+ break;
- 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:
+ case R_V850_CALLT_15_16_OFFSET:
+ insn = bfd_get_16 (abfd, address);
- movhi hi( fred + 0x123456), r0, r1
- movea lo( fred + 0x123456), r1, r1
+ addend += insn & 0xfffe;
- 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:
+ saddend = (bfd_signed_vma) addend;
- HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
- LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
+ if (saddend > 0xffff || saddend < 0)
+ return bfd_reloc_overflow;
- but when the instructions are executed, the MOVEA instruction's value
- is signed extended, so the sum becomes:
+ insn = (0xfffe & addend)
+ | (insn & ~0xfffe);
+ break;
- 0x00120000
- + 0xffffa456
- ------------
- 0x0011a456 but 'fred + 0x123456' = 0x0012a456
+ case R_V850_CALLT_6_7_OFFSET:
+ insn = bfd_get_16 (abfd, address);
+ addend += ((insn & 0x3f) << 1);
- Note that if the 15th bit was set in the value stored in the LO16
- reloc, then we do not have to do anything:
+ saddend = (bfd_signed_vma) addend;
- movhi hi( fred + 0x10ffff), r0, r1
- movea lo( fred + 0x10ffff), r1, r1
+ if (saddend > 0x7e || saddend < 0)
+ return bfd_reloc_overflow;
- HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
- LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
+ if (addend & 1)
+ return bfd_reloc_dangerous;
- 0x00110000
- + 0x00006fff
- ------------
- 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
-
- 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.
-
- So, for example if fred is at address 0xf000:
-
- movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set]
- movea lo( fred + 0xffff), r1, r1
-
- HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
- LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
-
- 0x00010000
- + 0xffffefff
- ------------
- 0x0000efff but 'fred + 0xffff' = 0x0001efff
-
- Similarly, if the 15th bit remains clear, but overflow occurs into
- the 16th bit then (assuming the address of fred is 0xf000):
-
- 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)
- */
-
- {
- long result;
-
- insn = bfd_get_16 (abfd, address);
- result = insn + addend;
-
-#define BIT15_SET(x) ((x) & 0x8000)
-#define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
-
- if ((BIT15_SET (result) && ! BIT15_SET (addend))
- || (OVERFLOWS (addend, insn)
- && ((! BIT15_SET (insn)) || (BIT15_SET (addend)))))
- {
- 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)
- {
- insn = bfd_get_16 (abfd, hi16s_address);
- insn += 1;
- bfd_put_16 (abfd, insn, hi16s_address);
- }
- }
- else
- {
- fprintf (stderr, _("FAILED to find previous HI16 reloc\n"));
- return bfd_reloc_overflow;
- }
- }
-
- /* Do not complain if value has top bit set, as this has been anticipated. */
- insn = result & 0xffff;
- 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;
+ insn &= 0xff80;
+ insn |= (addend >> 1);
+ break;
case R_V850_16:
-
- /* drop through */
+ case R_V810_HWORD:
case R_V850_SDA_16_16_OFFSET:
case R_V850_ZDA_16_16_OFFSET:
case R_V850_TDA_16_16_OFFSET:
insn = addend;
break;
+ case R_V850_16_S1:
case R_V850_SDA_15_16_OFFSET:
case R_V850_ZDA_15_16_OFFSET:
+ case R_V810_GPWLO_1:
insn = bfd_get_16 (abfd, address);
addend += (insn & 0xfffe);
if (addend & 1)
return bfd_reloc_dangerous;
- insn = (addend & ~1) | (insn & 1);
+ insn = (addend &~ (bfd_vma) 1) | (insn & 1);
break;
case R_V850_TDA_6_8_OFFSET:
insn |= addend;
break;
- case R_V850_ZDA_16_16_SPLIT_OFFSET:
+ case R_V810_WLO_1:
+ case R_V850_HWLO:
+ case R_V850_HWLO_1:
+ case R_V850_LO16_S1:
+ insn = bfd_get_16 (abfd, address);
+ result = insn & 0xfffe;
+ if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
+ return bfd_reloc_overflow;
+ if (result & 1)
+ return bfd_reloc_overflow;
+ insn = (result & 0xfffe)
+ | (insn & ~0xfffe);
+ bfd_put_16 (abfd, insn, address);
+ return bfd_reloc_ok;
+
+ case R_V850_BLO:
+ 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_16_SPLIT_OFFSET:
case R_V850_SDA_16_16_SPLIT_OFFSET:
+ case R_V850_ZDA_16_16_SPLIT_OFFSET:
insn = bfd_get_32 (abfd, address);
addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
insn &= 0x0001ffdf;
insn |= (addend & 1) << 5;
- insn |= (addend & ~1) << 16;
+ insn |= (addend &~ (bfd_vma) 1) << 16;
- bfd_put_32 (abfd, insn, address);
+ 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, insn, address);
+ 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 (abfd, reloc, symbol, data, isection, obfd, err)
- bfd * abfd ATTRIBUTE_UNUSED;
- arelent * reloc;
- asymbol * symbol;
- PTR data ATTRIBUTE_UNUSED;
- asection * isection;
- bfd * obfd;
- char ** err ATTRIBUTE_UNUSED;
+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
+ 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
+ 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;
}
-#if 0
- else if (obfd != NULL)
- {
- return bfd_reloc_continue;
- }
-#endif
/* Catch relocs involving undefined symbols. */
if (bfd_is_und_section (symbol->section)
/* We handle final linking of some relocs ourselves. */
/* Is the address of the relocation really within the section? */
- if (reloc->address > isection->_cooked_size)
+ if (reloc->address > bfd_get_section_limit (abfd, isection))
return bfd_reloc_outofrange;
- /* Work out which section the relocation is targetted at and the
+ /* 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;
relocation += symbol->section->output_offset;
relocation += reloc->addend;
-#if 0 /* Since this reloc is going to be processed later on, we should
- not make it pc-relative here. To test this, try assembling and
- linking this program:
-
- .text
- .globl _start
- nop
- _start:
- jr foo
-
- .section ".foo","ax"
- nop
- foo:
- nop
- */
- if (reloc->howto->pc_relative == true)
- {
- /* 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;
- }
-#endif
reloc->addend = relocation;
return bfd_reloc_ok;
}
-\f
-static boolean
-v850_elf_is_local_label_name (abfd, 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
-/* Perform a relocation as part of a final link. */
+
+/* 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_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 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;
+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)
{
- unsigned long r_type = howto->type;
- bfd_byte * hit_data = contents + offset;
+ if (output_bfd != NULL)
+ reloc_entry->address += input_section->output_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;
+ 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.
+ SeeAlso: RELOC_NUBMER in include/elf/v850.h. */
+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. */
- case R_V850_22_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset
- + offset);
+ /* A PC relative 9 bit branch. */
+ HOWTO (R_V850_9_PCREL, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 9, /* 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. */
- /* If the sign extension will corrupt the value then we have overflowed. */
- if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000))
- return bfd_reloc_overflow;
+ /* A PC relative 22 bit branch. */
+ HOWTO (R_V850_22_PCREL, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 22, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* 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. */
- value = SEXT24 (value); /* Only the bottom 24 bits of the PC are valid */
- break;
+ /* 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. */
- case R_V850_HI16_S:
- case R_V850_HI16:
- case R_V850_LO16:
- case R_V850_16:
- case R_V850_32:
- case R_V850_8:
- break;
+ /* 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. */
- 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;
+ /* 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. */
- value -= sym_sec->output_section->vma;
- break;
+ /* 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. */
- 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;
+ /* 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. */
- if (sym_sec == NULL)
- return bfd_reloc_undefined;
+ /* 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. */
- /* 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;
+ /* 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. */
- gp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_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. */
- value -= sym_sec->output_section->vma;
- value -= (gp - sym_sec->output_section->vma);
- }
- break;
+ /* 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. */
- 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;
+ /* 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. */
- /* 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. */
+ /* 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. */
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_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. */
- value -= ep;
- }
- break;
+ /* 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. */
- case R_V850_CALLT_6_7_OFFSET:
- {
- unsigned long ctbp;
- struct bfd_link_hash_entry * h;
+ /* 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. */
- /* Get the value of __ctbp. */
- h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return (bfd_reloc_dangerous + 1); /* Actually this indicates that __ctbp could not be found. */
+ /* 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. */
- ctbp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ctbp;
- }
- break;
+ /* 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. */
- case R_V850_CALLT_16_16_OFFSET:
- {
- unsigned long ctbp;
- struct bfd_link_hash_entry * h;
+ /* 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. */
- if (sym_sec == NULL)
- return bfd_reloc_undefined;
+ /* 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. */
- /* Get the value of __ctbp. */
- h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
- if (h == (struct bfd_link_hash_entry *) NULL
- || h->type != bfd_link_hash_defined)
- return (bfd_reloc_dangerous + 1);
+ /* 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. */
- ctbp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_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. */
- 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:
- return bfd_reloc_ok;
+ /* 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. */
+
+ /* A unsigned PC relative 16 bit loop. */
+ HOWTO (R_V850_16_PCREL, /* Type. */
+ 0, /* Rightshift. */
+ 1, /* Size (0 = byte, 1 = short, 2 = long). */
+ 16, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_bitfield, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_16_PCREL", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xfffe, /* Src_mask. */
+ 0xfffe, /* Dst_mask. */
+ TRUE), /* PCrel_offset. */
+
+ /* A PC relative 17 bit branch. */
+ HOWTO (R_V850_17_PCREL, /* Type. */
+ 0, /* Rightshift. */
+ 2, /* Size (0 = byte, 1 = short, 2 = long). */
+ 17, /* Bitsize. */
+ TRUE, /* PC_relative. */
+ 0, /* Bitpos. */
+ complain_overflow_bitfield, /* Complain_on_overflow. */
+ v850_elf_reloc, /* Special_function. */
+ "R_V850_17_PCREL", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0x0010fffe, /* Src_mask. */
+ 0x0010fffe, /* Dst_mask. */
+ TRUE), /* PCrel_offset. */
+
+ /* A 23bit offset ld/st. */
+ HOWTO (R_V850_23, /* type. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 23, /* bitsize. */
+ FALSE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_dont, /* complain_on_overflow. */
+ v850_elf_reloc, /* special_function. */
+ "R_V850_23", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffff07f0, /* src_mask. */
+ 0xffff07f0, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ /* A PC relative 32 bit branch. */
+ HOWTO (R_V850_32_PCREL, /* type. */
+ 1, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 32, /* bitsize. */
+ TRUE, /* pc_relative. */
+ 1, /* bitpos. */
+ complain_overflow_signed, /* complain_on_overflow. */
+ v850_elf_reloc, /* special_function. */
+ "R_V850_32_PCREL", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xfffffffe, /* src_mask. */
+ 0xfffffffe, /* dst_mask. */
+ TRUE), /* pcrel_offset. */
+
+ /* A absolute 32 bit branch. */
+ HOWTO (R_V850_32_ABS, /* type. */
+ 1, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 32, /* bitsize. */
+ TRUE, /* pc_relative. */
+ 1, /* bitpos. */
+ complain_overflow_signed, /* complain_on_overflow. */
+ v850_elf_reloc, /* special_function. */
+ "R_V850_32_ABS", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xfffffffe, /* src_mask. */
+ 0xfffffffe, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
- default:
- return bfd_reloc_notsupported;
- }
+ /* 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. */
- /* Perform the relocation. */
- return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
-}
-\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;
+ /* Low 16 bits of symbol value. */
+ HOWTO (R_V850_16_S1, /* 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_16_S1", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xfffe, /* src_mask. */
+ 0xfffe, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
- symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
+ /* Low 16 bits of symbol value. */
+ HOWTO (R_V850_LO16_S1, /* 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_LO16_S1", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xfffe, /* src_mask. */
+ 0xfffe, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
- if (sym_hashes == NULL)
- {
- info->callbacks->warning
- (info, "no hash table available", NULL, input_bfd, input_section, 0);
+ /* 16 bit offset from the call table base pointer. */
+ HOWTO (R_V850_CALLT_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_CALLT_15_16_OFFSET", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xfffe, /* src_mask. */
+ 0xfffe, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ /* Like R_V850_32 PCREL, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_V850_32_GOTPCREL, /* type. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 32, /* bitsize. */
+ TRUE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_unsigned, /* complain_on_overflow. */
+ v850_elf_reloc, /* special_function. */
+ "R_V850_32_GOTPCREL", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ TRUE), /* pcrel_offset. */
+
+ /* Like R_V850_SDA_, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_V850_16_GOT, /* type. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 16, /* bitsize. */
+ FALSE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_unsigned, /* complain_on_overflow. */
+ bfd_elf_generic_reloc, /* special_function. */
+ "R_V850_16_GOT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffff, /* src_mask. */
+ 0xffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ HOWTO (R_V850_32_GOT, /* type. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 32, /* bitsize. */
+ FALSE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_unsigned, /* complain_on_overflow. */
+ bfd_elf_generic_reloc, /* special_function. */
+ "R_V850_32_GOT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ /* Like R_V850_22_PCREL, but referring to the procedure linkage table
+ entry for the symbol. */
+ HOWTO (R_V850_22_PLT, /* type. */
+ 1, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 22, /* bitsize. */
+ TRUE, /* pc_relative. */
+ 7, /* bitpos. */
+ complain_overflow_signed, /* complain_on_overflow. */
+ bfd_elf_generic_reloc, /* special_function. */
+ "R_V850_22_PLT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0x07ffff80, /* src_mask. */
+ 0x07ffff80, /* dst_mask. */
+ TRUE), /* pcrel_offset. */
+
+ HOWTO (R_V850_32_PLT, /* type. */
+ 1, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long). */
+ 32, /* bitsize. */
+ TRUE, /* pc_relative. */
+ 1, /* bitpos. */
+ complain_overflow_signed, /* complain_on_overflow. */
+ bfd_elf_generic_reloc, /* special_function. */
+ "R_V850_32_PLT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ TRUE), /* pcrel_offset. */
+
+ /* This is used only by the dynamic linker. The symbol should exist
+ both in the object being run and in some shared library. The
+ dynamic linker copies the data addressed by the symbol from the
+ shared library into the object, because the object being
+ run has to have the data at some particular address. */
+ HOWTO (R_V850_COPY, /* 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_COPY", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ /* Like R_M32R_24, but used when setting global offset table
+ entries. */
+ HOWTO (R_V850_GLOB_DAT, /* 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_GLOB_DAT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ /* Marks a procedure linkage table entry for a symbol. */
+ HOWTO (R_V850_JMP_SLOT, /* 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_JMP_SLOT", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ /* Used only by the dynamic linker. When the object is run, this
+ longword is set to the load address of the object, plus the
+ addend. */
+ HOWTO (R_V850_RELATIVE, /* 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_RELATIVE", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ HOWTO (R_V850_16_GOTOFF, /* type. */
+ 0, /* rightshift. */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize. */
+ FALSE, /* pc_relative. */
+ 0, /* bitpos. */
+ complain_overflow_bitfield, /* complain_on_overflow. */
+ bfd_elf_generic_reloc, /* special_function. */
+ "R_V850_16_GOTOFF", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffff, /* src_mask. */
+ 0xffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ HOWTO (R_V850_32_GOTOFF, /* 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_32_GOTOFF", /* name. */
+ FALSE, /* partial_inplace. */
+ 0xffffffff, /* src_mask. */
+ 0xffffffff, /* dst_mask. */
+ FALSE), /* pcrel_offset. */
+
+ HOWTO (R_V850_CODE, /* 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_CODE", /* name. */
+ FALSE, /* partial_inplace. */
+ 0, /* src_mask. */
+ 0, /* dst_mask. */
+ TRUE), /* pcrel_offset. */
+
+ HOWTO (R_V850_DATA, /* 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_DATA", /* name. */
+ FALSE, /* partial_inplace. */
+ 0, /* src_mask. */
+ 0, /* dst_mask. */
+ TRUE), /* pcrel_offset. */
- return false;
- }
+};
- /* Reset the list of remembered HI16S relocs to empty. */
- free_hi16s = previous_hi16s;
- previous_hi16s = NULL;
- hi16s_counter = 0;
+/* Map BFD reloc types to V850 ELF reloc types. */
- 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;
+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 },
+ { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL },
+ { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL },
+ { BFD_RELOC_V850_23, R_V850_23 },
+ { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL },
+ { BFD_RELOC_V850_32_ABS, R_V850_32_ABS },
+ { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 },
+ { BFD_RELOC_V850_16_S1, R_V850_16_S1 },
+ { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 },
+ { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET },
+ { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL },
+ { BFD_RELOC_V850_16_GOT, R_V850_16_GOT },
+ { BFD_RELOC_V850_32_GOT, R_V850_32_GOT },
+ { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT },
+ { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT },
+ { BFD_RELOC_V850_COPY, R_V850_COPY },
+ { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT },
+ { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT },
+ { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE },
+ { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF },
+ { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF },
+ { BFD_RELOC_V850_CODE, R_V850_CODE },
+ { BFD_RELOC_V850_DATA, R_V850_DATA },
+};
+
+#define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \
+ HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
+ bfd_elf_ ## resolver ## _reloc, #name, FALSE, 0, ~0, FALSE)
+
+#define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE)
+
+#define bfd_elf_v850_reloc v850_elf_reloc
+
+/* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry
+ in this array match the index of the entry in the array minus 0x30.
+ See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup()
+ and v800_elf_info_to_howto(). */
+
+static reloc_howto_type v800_elf_howto_table[] =
+{
+ V800_RELOC (R_V810_NONE, 0, 0, 0, dont, FALSE, generic), /* Type = 0x30 */
+ V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, FALSE, generic),
+ V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, FALSE, generic),
+ V800_RELOC (R_V810_WORD, 2, 32, 0, dont, FALSE, generic),
+ V800_RELOC (R_V810_WLO, 1, 16, 0, dont, FALSE, generic),
+ V800_RELOC (R_V810_WHI, 1, 16, 0, dont, FALSE, generic),
+ V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, FALSE, generic),
+ V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, FALSE, generic),
+ V800_EMPTY (R_V810_reserved1),
+ V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, FALSE, v850),
+ V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, FALSE, v850),
+ V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, FALSE, v850),
+ V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, FALSE, v850),
+ V800_EMPTY (R_V810_reserved2),
+ V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, FALSE, v850),
+ V800_EMPTY (R_V810_reserved3),
+ V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, TRUE, generic),
+ V800_RELOC (R_V850_BLO, 2, 24, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, FALSE, v850),
+ V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, FALSE, v850),
+ V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, FALSE, v850),
+ V800_EMPTY (R_V810_reserved4),
+ V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, FALSE, v850),
+ V800_EMPTY (R_V810_reserved5),
+ V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, FALSE, v850),
+ V800_EMPTY (R_V810_reserved6),
+ V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_PC32, 2, 32, 1, signed, TRUE, v850),
+ V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, TRUE, generic),
+ V800_RELOC (R_V850_PC17, 2, 17, 1, signed, TRUE, generic),
+ V800_RELOC (R_V850_DW8, 2, 8, 2, signed, FALSE, v850),
+ V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, FALSE, v850),
+ V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, FALSE, v850),
+ V800_RELOC (R_V850_PC9, 1, 9, 3, signed, TRUE, v850),
+ V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, FALSE, v850),
+ V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, FALSE, v850),
+ V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, FALSE, v850),
+ V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, FALSE, v850),
+ V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, FALSE, v850),
+ V800_RELOC (R_V850_WORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, FALSE, v850),
+ V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, FALSE, v850),
+ V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, FALSE, v850),
+ V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, FALSE, v850),
+ V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, FALSE, v850)
+};
+\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);
+ if (r_type >= (unsigned int) R_V850_max)
+ {
+ _bfd_error_handler (_("%A: invalid V850 reloc number: %d"), abfd, r_type);
+ r_type = 0;
+ }
+ 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] == '_'));
+}
+
+static bfd_boolean
+v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
+{
+ return v850_elf_is_local_label_name (abfd, sym->name);
+}
+\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_PC9:
+ case R_V850_9_PCREL:
+ value -= (input_section->output_section->vma
+ + input_section->output_offset);
+ value -= offset;
+ break;
+
+ case R_V850_PC16U:
+ case R_V850_16_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 & 0xffff0000) != 0xffff0000)
+ return bfd_reloc_overflow;
+
+ break;
+
+ case R_V850_PC17:
+ case R_V850_17_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 & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
+ return bfd_reloc_overflow;
+
+ value = SEXT17 (value);
+ break;
+
+ case R_V850_PCR22:
+ 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 & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
+ return bfd_reloc_overflow;
+
+ /* Only the bottom 22 bits of the PC are valid. */
+ value = SEXT22 (value);
+ break;
+
+ case R_V850_PC32:
+ case R_V850_32_PCREL:
+ value -= (input_section->output_section->vma
+ + input_section->output_offset
+ + offset);
+ break;
+
+ case R_V850_32_ABS:
+ case R_V850_23:
+ case R_V850_HI16_S:
+ case R_V850_HI16:
+ case R_V850_LO16:
+ case R_V850_LO16_S1:
+ case R_V850_LO16_SPLIT_OFFSET:
+ case R_V850_16:
+ case R_V850_ABS32:
+ case R_V850_8:
+ case R_V810_BYTE:
+ case R_V810_HWORD:
+ case R_V810_WORD:
+ case R_V810_WLO:
+ case R_V810_WHI:
+ case R_V810_WHI1:
+ case R_V810_WLO_1:
+ case R_V850_WLO23:
+ case R_V850_BLO:
+ 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:
+ case R_V810_GPWLO_1:
+ {
+ unsigned long gp;
+ struct bfd_link_hash_entry * h;
+
+ 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_7_7_OFFSET:
+ case R_V850_TDA_7_8_OFFSET:
+ case R_V850_TDA_6_8_OFFSET:
+ 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 == 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_15_16_OFFSET:
+ 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_V810_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:
+#ifdef DEBUG
+ fprintf (stderr, "reloc number %d not recognised\n", r_type);
+#endif
+ 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++)
+ {
+ unsigned 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;
+
+ if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
+ howto = v800_elf_howto_table + (r_type - R_V810_NONE);
+ else
+ howto = v850_elf_howto_table + r_type;
+
+ BFD_ASSERT (r_type == howto->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, ignored;
+
+ /* 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, ignored);
+ }
+
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ 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 ((int) 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;
+
+ case bfd_reloc_undefined:
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section,
+ rel->r_offset, TRUE)))
+ return FALSE;
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ goto common_error;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ goto common_error;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous relocation");
+ goto common_error;
+
+ case bfd_reloc_gp_not_found:
+ msg = _("could not locate special linker symbol __gp");
+ goto common_error;
+
+ case bfd_reloc_ep_not_found:
+ msg = _("could not locate special linker symbol __ep");
+ goto common_error;
+
+ case bfd_reloc_ctbp_not_found:
+ msg = _("could not locate special linker symbol __ctbp");
+ goto common_error;
+
+ default:
+ msg = _("internal error: unknown error");
+ /* fall through */
+
+ 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))
+ {
+ case R_V850_GNU_VTINHERIT:
+ case R_V850_GNU_VTENTRY:
+ return NULL;
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
+
+/* Set the right machine number and architecture. */
+
+static bfd_boolean
+v850_elf_object_p (bfd *abfd)
+{
+ enum bfd_architecture arch;
+ unsigned long mach;
+
+ switch (elf_elfheader (abfd)->e_machine)
+ {
+ case EM_V800:
+ arch = bfd_arch_v850_rh850;
+ mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
+ ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
+ break;
+
+ case EM_CYGNUS_V850:
+ case EM_V850:
+ arch = bfd_arch_v850;
+ switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
+ {
+ default:
+ case E_V850_ARCH: mach = bfd_mach_v850; break;
+ case E_V850E_ARCH: mach = bfd_mach_v850e; break;
+ case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
+ case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
+ case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
+ case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
+ }
+ break;
+
+ default:
+ return FALSE;
+ }
+
+ return bfd_default_set_arch_mach (abfd, arch, mach);
+}
+
+/* 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_arch (abfd))
+ {
+ case bfd_arch_v850_rh850:
+ val = EF_RH850_ABI;
+ if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
+ val |= EF_V800_850E3;
+ elf_elfheader (abfd)->e_flags |= val;
+ break;
+
+ case bfd_arch_v850:
+ 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;
+ case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
+ case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
+ case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
+ }
+ elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
+ elf_elfheader (abfd)->e_flags |= val;
+ break;
+ default:
+ break;
+ }
+}
+
+/* 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 (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
+ {
+ if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
+ {
+ _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
+ ibfd);
+ elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
+ }
+
+ if ((in_flags & EF_RH850_DATA_ALIGN8) != (out_flags & EF_RH850_DATA_ALIGN8))
+ {
+ _bfd_error_handler (_("%B: Alignment mismatch with previous modules"),
+ ibfd);
+ elf_elfheader (obfd)->e_flags |= EF_RH850_DATA_ALIGN8;
+ }
+
+ return TRUE;
+ }
+
+ if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
+ && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
+ {
+ /* Allow earlier architecture binaries to be linked with later binaries.
+ Set the output binary to the later architecture, except for v850e1,
+ which we set 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_V850_ARCH
+ && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
+ {
+ elf_elfheader (obfd)->e_flags =
+ ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
+ return TRUE;
+ }
+
+ if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
+ || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
+ && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
+ {
+ elf_elfheader (obfd)->e_flags =
+ ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
+ return TRUE;
+ }
+
+ if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
+ || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
+ || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
+ && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
+ {
+ elf_elfheader (obfd)->e_flags =
+ ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
+ return TRUE;
+ }
+
+ if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
+ || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
+ || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
+ || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
+ && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
+ {
+ elf_elfheader (obfd)->e_flags =
+ ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_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);
+
+ if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
+ {
+ if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
+ fprintf (file, _("unknown v850 architecture"));
+ else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
+ fprintf (file, _("v850 E3 architecture"));
+ else
+ fprintf (file, _("v850 architecture"));
+
+ if (elf_elfheader (abfd)->e_flags & EF_RH850_DATA_ALIGN8)
+ fprintf (file, _(", 8-byte data alignment"));
+ }
+ else
+ {
+ 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;
+ case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
+ case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
+ case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 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)
+ {
+ case SHT_V850_SCOMMON:
+ indx = SHN_V850_SCOMMON;
+ break;
+
+ case SHT_V850_TCOMMON:
+ indx = SHN_V850_TCOMMON;
+ break;
+
+ case SHT_V850_ZCOMMON:
+ indx = SHN_V850_ZCOMMON;
+ break;
+
+ default:
+ break;
+ }
+
+ 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)
+ {
+ case SHT_V850_SCOMMON:
+ indx = SHN_V850_SCOMMON;
+ break;
+
+ case SHT_V850_TCOMMON:
+ indx = SHN_V850_TCOMMON;
+ break;
+
+ case SHT_V850_ZCOMMON:
+ indx = SHN_V850_ZCOMMON;
+ break;
+
+ default:
+ break;
+ }
+
+ 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;
+ }
+
+ return TRUE;
+}
+
+static int
+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);
- r_symndx = ELF32_R_SYM (rel->r_info);
- r_type = ELF32_R_TYPE (rel->r_info);
+ return 1;
+}
- if (r_type == R_V850_GNU_VTENTRY
- || r_type == R_V850_GNU_VTINHERIT)
- continue;
+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. */
- howto = v850_elf_howto_table + r_type;
+ if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
+ return FALSE;
- if (info->relocateable)
- {
- /* 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)
- {
- 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;
- }
- }
+ 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 sym_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;
}
- /* This is a final link. */
- h = NULL;
- sym = NULL;
- sec = NULL;
- if (r_symndx < symtab_hdr->sh_info)
+ 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)
{
- sym = local_syms + r_symndx;
- sec = local_sections[r_symndx];
- relocation = (sec->output_section->vma
- + sec->output_offset
- + sym->st_value);
-#if 0
+ symval = isym.st_value;
+#if (DEBUG_RELAX & 2)
{
- 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\n",
- sec->name, name, sym->st_name,
- sec->output_section->vma, sec->output_offset, sym->st_value, rel->r_addend);
+ 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
{
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ unsigned long indx;
+ struct elf_link_hash_entry * h;
- 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;
+ /* An external symbol. */
+ indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
-#if 0
-fprintf (stderr, "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n",
- sec->name, h->root.root.string, h->root.u.def.value, sec->output_section->vma, sec->output_offset, relocation);
-#endif
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- {
-#if 0
-fprintf (stderr, "undefined: sec: %s, name: %s\n",
- sec->name, h->root.root.string);
-#endif
- relocation = 0;
- }
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset, true)))
- return false;
-#if 0
-fprintf (stderr, "unknown: name: %s\n", h->root.root.string);
+ h = elf_sym_hashes (abfd) [indx];
+ BFD_ASSERT (h != NULL);
+
+ 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
- relocation = 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)
- {
- const char * name;
- const char * msg = (const char *)0;
-
- 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, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return false;
- break;
+ paddr = symval + irel->r_addend;
- case bfd_reloc_undefined:
- if (! ((*info->callbacks->undefined_symbol)
- (info, name, input_bfd, input_section,
- rel->r_offset, true)))
- return false;
- break;
+ 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;
+ }
- case bfd_reloc_outofrange:
- msg = _("internal error: out of range error");
- goto common_error;
+ /* Adjust the local symbols defined in this section. */
+ esym = extsyms;
+ esymend = esym + symtab_hdr->sh_info;
- case bfd_reloc_notsupported:
- msg = _("internal error: unsupported relocation error");
- goto common_error;
+ for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
+ {
+ Elf_Internal_Sym isym;
- case bfd_reloc_dangerous:
- msg = _("internal error: dangerous relocation");
- goto common_error;
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
- case bfd_reloc_other:
- msg = _("could not locate special linker symbol __gp");
- goto common_error;
+ if (isym.st_shndx == sec_shndx
+ && isym.st_value >= addr + count
+ && isym.st_value < toaddr)
+ {
+ isym.st_value -= count;
- case bfd_reloc_continue:
- msg = _("could not locate special linker symbol __ep");
- goto common_error;
+ if (isym.st_value + isym.st_size >= toaddr)
+ isym.st_size += count;
- case (bfd_reloc_dangerous + 1):
- msg = _("could not locate special linker symbol __ctbp");
- goto common_error;
+ 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;
- default:
- msg = _("internal error: unknown error");
- /* fall through */
+ if (isym.st_value >= addr
+ && isym.st_value < addr + count)
+ isym.st_value = addr;
- common_error:
- if (!((*info->callbacks->warning)
- (info, msg, name, input_bfd, input_section,
- rel->r_offset)))
- return false;
- break;
- }
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
}
- return true;
-}
-
-static boolean
-v850_elf_gc_sweep_hook (abfd, info, sec, relocs)
- bfd *abfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- asection *sec ATTRIBUTE_UNUSED;
- const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
-{
- /* No got and plt entries for v850-elf */
- return true;
-}
-
-static asection *
-v850_elf_gc_mark_hook (abfd, info, rel, h, sym)
- bfd *abfd;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- Elf_Internal_Rela *rel;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *sym;
-{
- if (h != NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_V850_GNU_VTINHERIT:
- case R_V850_GNU_VTENTRY:
- break;
+ /* 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));
- default:
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- break;
- }
- }
- }
- else
- {
- if (!(elf_bad_symtab (abfd)
- && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
- && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
- && sym->st_shndx != SHN_COMMON))
- {
- return bfd_section_from_elf_index (abfd, sym->st_shndx);
- }
- }
- return NULL;
-}
-/* Set the right machine number. */
-static boolean
-v850_elf_object_p (abfd)
- bfd *abfd;
-{
- switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
+ for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
{
- default:
- case E_V850_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, 0); break;
- case E_V850E_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); break;
- case E_V850EA_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850ea); break;
- }
- return true;
-}
-
-/* Store the machine number in the flags field. */
-static void
-v850_elf_final_write_processing (abfd, linker)
- bfd * abfd;
- boolean linker ATTRIBUTE_UNUSED;
-{
- unsigned long val;
+ Elf_Internal_Sym isym;
- switch (bfd_get_mach (abfd))
- {
- default:
- case 0: val = E_V850_ARCH; break;
- case bfd_mach_v850e: val = E_V850E_ARCH; break;
- case bfd_mach_v850ea: val = E_V850EA_ARCH; break;
- }
+ bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
+ sym_hash = elf_sym_hashes (abfd) [sym_index];
- elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
- elf_elfheader (abfd)->e_flags |= val;
-}
+ 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)
+ {
+ if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
+ {
+ isym.st_size += count;
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
+ }
-/* Function to keep V850 specific file flags. */
-static boolean
-v850_elf_set_private_flags (abfd, flags)
- bfd * abfd;
- flagword flags;
-{
- BFD_ASSERT (!elf_flags_init (abfd)
- || elf_elfheader (abfd)->e_flags == flags);
+ (sym_hash)->root.u.def.value -= count;
+ }
+ 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)
+ {
+ 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;
- elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = true;
- return true;
-}
+ if ((sym_hash)->root.u.def.value >= addr
+ && (sym_hash)->root.u.def.value < addr + count)
+ (sym_hash)->root.u.def.value = addr;
-/* Copy backend specific data from one object module to another */
-static 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;
+ bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
+ }
- BFD_ASSERT (!elf_flags_init (obfd)
- || (elf_elfheader (obfd)->e_flags
- == elf_elfheader (ibfd)->e_flags));
+ if (shndx)
+ ++ shndx;
+ }
- elf_gp (obfd) = elf_gp (ibfd);
- elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
- elf_flags_init (obfd) = true;
- return true;
+ return TRUE;
}
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-static boolean
-v850_elf_merge_private_bfd_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
+#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)
{
- 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))
+ 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)
{
- /* 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;
+ toaddr = sec->size;
- elf_flags_init (obfd) = true;
- elf_elfheader (obfd)->e_flags = in_flags;
+ 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;
- if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
- && bfd_get_arch_info (obfd)->the_default)
+#ifdef DEBUG_RELAX
+ fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
+ addr, toaddr, align_pad_size);
+#endif
+ if (irelalign)
{
- return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
- }
+ bfd_vma alignto;
+ bfd_vma alignmoveto;
- return true;
- }
-
- /* Check flag compatibility. */
- if (in_flags == out_flags)
- return true;
+ alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
+ alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
- if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
- && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
- _bfd_error_handler (_("%s: Architecture mismatch with previous modules"),
- bfd_get_filename (ibfd));
+ if (alignmoveto < alignto)
+ {
+ bfd_vma i;
- return true;
-}
-/* Display the flags field */
+ 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;
-static boolean
-v850_elf_print_private_bfd_data (abfd, ptr)
- bfd * abfd;
- PTR ptr;
-{
- FILE * file = (FILE *) ptr;
+ for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
+ (i + 1) < toaddr; i += 2)
+ bfd_put_16 (abfd, NOP_OPCODE, contents + i);
- BFD_ASSERT (abfd != NULL && ptr != NULL);
+ addr = alignmoveto;
+ }
+ else
+ align_pad_size = 0;
+ }
- _bfd_elf_print_private_bfd_data (abfd, ptr);
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ 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;
+ unsigned int r_type;
+
+ 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
- /* xgettext:c-format */
- fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
+ /* Get the section contents. */
+ if (contents == NULL)
+ {
+ 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 (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_V850EA_ARCH: fprintf (file, _("v850ea architecture")); break;
- }
+ /* Read this BFD's local symbols if we haven't done so already. */
+ if (isymbuf == NULL && symtab_hdr->sh_info != 0)
+ {
+ 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;
+ }
- fputc ('\n', file);
+ laddr = irel->r_offset;
- return true;
-}
+ 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));
-/* 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. */
+ continue;
+ }
-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;
+ 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]));
-/* Given a BFD section, try to locate the corresponding ELF section
- index. */
+ continue;
+ }
-static boolean
-v850_elf_section_from_bfd_section (abfd, hdr, sec, retval)
- bfd * abfd ATTRIBUTE_UNUSED;
- Elf32_Internal_Shdr * hdr 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;
+ /* Get the reloc for the address from which the register is
+ being loaded. This reloc will tell us which function is
+ actually being called. */
- return true;
-}
+ for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
+ {
+ r_type = ELF32_R_TYPE (hi_irelfn->r_info);
-/* Handle the special V850 section numbers that a symbol may use. */
+ if (hi_irelfn->r_offset == laddr + 2
+ && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
+ break;
+ }
-static void
-v850_elf_symbol_processing (abfd, asym)
- bfd * abfd;
- asymbol * asym;
-{
- elf_symbol_type * elfsym = (elf_symbol_type *) asym;
- unsigned short index;
+ for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
+ {
+ r_type = ELF32_R_TYPE (lo_irelfn->r_info);
- index = elfsym->internal_elf_sym.st_shndx;
+ if (lo_irelfn->r_offset == laddr + 6
+ && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
+ break;
+ }
- /* 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.
+ for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
+ {
+ r_type = ELF32_R_TYPE (irelcall->r_info);
- FIXME: Should we alter the st_shndx field as well ? */
+ if (irelcall->r_offset == laddr + 8
+ && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
+ break;
+ }
- if (index < elf_elfheader(abfd)[0].e_shnum)
- switch (elf_elfsections(abfd)[index]->sh_type)
- {
- case SHT_V850_SCOMMON:
- index = SHN_V850_SCOMMON;
- 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 ));
- case SHT_V850_TCOMMON:
- index = SHN_V850_TCOMMON;
- break;
+ continue;
+ }
- case SHT_V850_ZCOMMON:
- index = SHN_V850_ZCOMMON;
- break;
+ if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
+ {
+ Elf_Internal_Sym * isym;
- default:
- break;
- }
+ /* A local symbol. */
+ isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
- switch (index)
- {
- 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;
+ 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;
+ }
- 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;
+ 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 ));
- 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;
- }
-}
+ continue;
+ }
-/* Hook called by the linker routine which adds symbols from an object
- file. We must handle the special v850 section numbers here. */
+ /* 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);
+ }
-static boolean
-v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
- bfd * abfd;
- struct bfd_link_info * info ATTRIBUTE_UNUSED;
- const Elf_Internal_Sym * sym;
- const char ** namep ATTRIBUTE_UNUSED;
- flagword * flagsp ATTRIBUTE_UNUSED;
- asection ** secp;
- bfd_vma * valp;
-{
- int index = sym->st_shndx;
+ 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
- /* 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.
+ 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. */
+ if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
+ else
+ 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));
- FIXME: Should we alter the st_shndx field as well ? */
+ continue;
+ }
- if (index < elf_elfheader(abfd)[0].e_shnum)
- switch (elf_elfsections(abfd)[index]->sh_type)
- {
- case SHT_V850_SCOMMON:
- index = SHN_V850_SCOMMON;
- break;
+ 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]));
- case SHT_V850_TCOMMON:
- index = SHN_V850_TCOMMON;
- break;
+ continue;
+ }
- case SHT_V850_ZCOMMON:
- index = SHN_V850_ZCOMMON;
- break;
+ /* 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 ++)
+ {
+ r_type = ELF32_R_TYPE (hi_irelfn->r_info);
- default:
- break;
- }
+ if (hi_irelfn->r_offset == laddr + 2
+ && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
+ break;
+ }
- switch (index)
- {
- case SHN_V850_SCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".scommon");
- (*secp)->flags |= SEC_IS_COMMON;
- *valp = sym->st_size;
- break;
+ for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
+ {
+ r_type = ELF32_R_TYPE (lo_irelfn->r_info);
- case SHN_V850_TCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".tcommon");
- (*secp)->flags |= SEC_IS_COMMON;
- *valp = sym->st_size;
- break;
+ if (lo_irelfn->r_offset == laddr + 6
+ && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
+ break;
+ }
- case SHN_V850_ZCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".zcommon");
- (*secp)->flags |= SEC_IS_COMMON;
- *valp = sym->st_size;
- 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 ));
- return true;
-}
+ continue;
+ }
-/*ARGSIGNORED*/
-static boolean
-v850_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
- bfd * abfd ATTRIBUTE_UNUSED;
- struct bfd_link_info * info ATTRIBUTE_UNUSED;
- const char * name ATTRIBUTE_UNUSED;
- Elf_Internal_Sym * sym;
- asection * input_sec;
-{
- /* 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. */
+ /* 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 (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;
- }
+ 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. */
+
+ if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
+ else
+ 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. */
+
+ if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
+ else
+ 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;
+ }
+ }
+ }
- return true;
-}
+ irelalign = NULL;
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
+ && irel->r_offset == toaddr)
+ {
+ irel->r_offset -= align_pad_size;
-static boolean
-v850_elf_section_from_shdr (abfd, hdr, name)
- bfd * abfd;
- Elf_Internal_Shdr * hdr;
- char * name;
-{
- /* 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 (irelalign == NULL || irelalign->r_addend > irel->r_addend)
+ irelalign = irel;
+ }
+ }
- if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
- return false;
+ addr = toaddr;
+ }
- switch (hdr->sh_type)
+ if (!irelalign)
{
- 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;
+#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);
-/* 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 boolean
-v850_elf_fake_sections (abfd, hdr, sec)
- bfd * abfd ATTRIBUTE_UNUSED;
- Elf32_Internal_Shdr * hdr;
- asection * sec;
-{
- register const char * name;
+ if (contents != NULL
+ && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
+ free (contents);
- name = bfd_get_section_name (abfd, sec);
+ if (isymbuf != NULL
+ && symtab_hdr->contents != (bfd_byte *) isymbuf)
+ free (isymbuf);
- 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 result;
- return true;
+ error_return:
+ result = FALSE;
+ goto finish;
}
+
+static const struct bfd_elf_special_section v850_elf_special_sections[] =
+{
+ { 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_SYM v850_elf32_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_MAXPAGESIZE 0x1000
#define elf_info_to_howto v850_elf_info_to_howto_rela
#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_gc_sweep_hook v850_elf_gc_sweep_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_is_target_special_symbol v850_elf_is_target_special_symbol
+
#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 '_'
+#undef elf32_bed
+#define elf32_bed elf32_v850_bed
+
+#include "elf32-target.h"
+
+/* Map BFD reloc types to V800 ELF reloc types. */
+
+static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
+{
+ { BFD_RELOC_NONE, R_V810_NONE },
+ { BFD_RELOC_8, R_V810_BYTE },
+ { BFD_RELOC_16, R_V810_HWORD },
+ { BFD_RELOC_32, R_V810_WORD },
+ { BFD_RELOC_LO16, R_V810_WLO },
+ { BFD_RELOC_HI16, R_V810_WHI },
+ { BFD_RELOC_HI16_S, R_V810_WHI1 },
+ { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
+ { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
+ { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
+ { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
+ { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
+ { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
+ { BFD_RELOC_V850_23, R_V850_WLO23 },
+ { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
+ { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
+ { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
+ { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
+ { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
+};
+
+/* Map a bfd relocation into the appropriate howto structure. */
+
+static reloc_howto_type *
+v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
+{
+ unsigned int i;
+
+ BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
+
+ for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
+ if (v800_elf_reloc_map[i].bfd_reloc_val == code)
+ {
+ unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
+ unsigned int idx = elf_reloc_val - R_V810_NONE;
+
+ BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
+
+ return v800_elf_howto_table + idx;
+ }
+
+#ifdef DEBUG
+ fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
+#endif
+ return NULL;
+}
+
+static reloc_howto_type *
+v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
+{
+ unsigned int i;
+
+ BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
+
+ for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
+ if (v800_elf_howto_table[i].name != NULL
+ && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
+ return v800_elf_howto_table + i;
+
+ return NULL;
+}
+
+
+/* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
+
+static void
+v800_elf_info_to_howto (bfd * abfd,
+ arelent * cache_ptr,
+ Elf_Internal_Rela * dst)
+{
+ unsigned int r_type = ELF32_R_TYPE (dst->r_info);
+
+ BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
+
+ BFD_ASSERT (r_type < (unsigned int) R_V800_max);
+
+ if (r_type == R_V800_NONE)
+ r_type = R_V810_NONE;
+
+ BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
+ r_type -= R_V810_NONE;
+ BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
+
+ cache_ptr->howto = v800_elf_howto_table + r_type;
+}
+\f
+
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM v800_elf32_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-v850-rh850"
+#undef ELF_ARCH
+#define ELF_ARCH bfd_arch_v850_rh850
+#undef ELF_MACHINE_CODE
+#define ELF_MACHINE_CODE EM_V800
+#undef ELF_MACHINE_ALT1
+
+#undef elf32_bed
+#define elf32_bed elf32_v850_rh850_bed
+
+#undef elf_info_to_howto
+#define elf_info_to_howto v800_elf_info_to_howto
+#undef elf_info_to_howto_rel
+#define elf_info_to_howto_rel NULL
+#undef bfd_elf32_bfd_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
+#undef bfd_elf32_bfd_reloc_name_lookup
+#define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
+
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff