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authorNick Clifton <nickc@redhat.com>2004-12-22 14:25:42 +0000
committerNick Clifton <nickc@redhat.com>2004-12-22 14:25:42 +0000
commit750bce0ee10ab816e29d8f01733ad000466181fb (patch)
tree7b299de8a67aa64196ee9cbda3b524f9a4a89270 /bfd/elf32-avr.c
parent76a56260628e949cd60b00f8035a53cbadca61ad (diff)
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Add support for the new R_AVR_LDI, R_AVR_6 and R_AVR_6_ADIW relocs for the
LDI, ADIW/SBIW and LDD/STD instructions.
Diffstat (limited to 'bfd/elf32-avr.c')
-rw-r--r--bfd/elf32-avr.c109
1 files changed, 95 insertions, 14 deletions
diff --git a/bfd/elf32-avr.c b/bfd/elf32-avr.c
index 1026bfb..9b0e8b5 100644
--- a/bfd/elf32-avr.c
+++ b/bfd/elf32-avr.c
@@ -3,21 +3,21 @@
Free Software Foundation, Inc.
Contributed by Denis Chertykov <denisc@overta.ru>
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
@@ -323,12 +323,57 @@ static reloc_howto_type elf_avr_howto_table[] =
23, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_AVR_CALL", /* name */
FALSE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+ /* A 16 bit absolute relocation of 16 bit address.
+ For LDI command. */
+ HOWTO (R_AVR_LDI, /* 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_AVR_LDI", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+ /* A 6 bit absolute relocation of 6 bit offset.
+ For ldd/sdd command. */
+ HOWTO (R_AVR_6, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 6, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_AVR_6", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+ /* A 6 bit absolute relocation of 6 bit offset.
+ For sbiw/adiw command. */
+ HOWTO (R_AVR_6_ADIW, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 6, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_AVR_6_ADIW", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
FALSE) /* pcrel_offset */
};
@@ -360,7 +405,10 @@ struct avr_reloc_map
{ BFD_RELOC_AVR_LO8_LDI_PM_NEG, R_AVR_LO8_LDI_PM_NEG },
{ BFD_RELOC_AVR_HI8_LDI_PM_NEG, R_AVR_HI8_LDI_PM_NEG },
{ BFD_RELOC_AVR_HH8_LDI_PM_NEG, R_AVR_HH8_LDI_PM_NEG },
- { BFD_RELOC_AVR_CALL, R_AVR_CALL }
+ { BFD_RELOC_AVR_CALL, R_AVR_CALL },
+ { BFD_RELOC_AVR_LDI, R_AVR_LDI },
+ { BFD_RELOC_AVR_6, R_AVR_6 },
+ { BFD_RELOC_AVR_6_ADIW, R_AVR_6_ADIW }
};
static reloc_howto_type *
@@ -561,6 +609,39 @@ avr_final_link_relocate (howto, input_bfd, input_section,
bfd_put_16 (input_bfd, x, contents);
break;
+ case R_AVR_LDI:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation + rel->r_addend;
+ if ((srel & 0xffff) > 255)
+ /* Remove offset for data/eeprom section. */
+ return bfd_reloc_overflow;
+ x = bfd_get_16 (input_bfd, contents);
+ x = (x & 0xf0f0) | (srel & 0xf) | ((srel << 4) & 0xf00);
+ bfd_put_16 (input_bfd, x, contents);
+ break;
+
+ case R_AVR_6:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation + rel->r_addend;
+ if (((srel & 0xffff) > 63) || (srel < 0))
+ /* Remove offset for data/eeprom section. */
+ return bfd_reloc_overflow;
+ x = bfd_get_16 (input_bfd, contents);
+ x = (x & 0xd3f8) | ((srel & 7) | ((srel & (3 << 3)) << 7) | ((srel & (1 << 5)) << 8));
+ bfd_put_16 (input_bfd, x, contents);
+ break;
+
+ case R_AVR_6_ADIW:
+ contents += rel->r_offset;
+ srel = (bfd_signed_vma) relocation + rel->r_addend;
+ if (((srel & 0xffff) > 63) || (srel < 0))
+ /* Remove offset for data/eeprom section. */
+ return bfd_reloc_overflow;
+ x = bfd_get_16 (input_bfd, contents);
+ x = (x & 0xff30) | (srel & 0xf) | ((srel & 0x30) << 2);
+ bfd_put_16 (input_bfd, x, contents);
+ break;
+
case R_AVR_HI8_LDI:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation + rel->r_addend;