e4ef1b6c3f
* elf32-avr.c: Add DIFF relocations for AVR. (avr_final_link_relocate): Handle the DIFF relocs. (bfd_elf_avr_diff_reloc): New. (elf32_avr_is_diff_reloc): New. (elf32_avr_adjust_diff_reloc_value): Reduce difference value. (elf32_avr_relax_delete_bytes): Recompute difference after deleting bytes. * reloc.c: Add BFD_RELOC_AVR_DIFF8/16/32 relocations gas/ChangeLog * config/tc-avr.c: Add new flag mlink-relax. (md_show_usage): Add flag and help text. (md_parse_option): Record whether link relax is turned on. (relaxable_section): New. (avr_validate_fix_sub): New. (avr_force_relocation): New. (md_apply_fix): Generate DIFF reloc. (avr_allow_local_subtract): New. * config/tc-avr.h (TC_LINKRELAX_FIXUP): Define to 0. (TC_FORCE_RELOCATION): Define. (TC_FORCE_RELOCATION_SUB_SAME): Define. (TC_VALIDATE_FIX_SUB): Define. (avr_force_relocation): Declare. (avr_validate_fix_sub): Declare. (md_allow_local_subtract): Define. (avr_allow_local_subtract): Declare. gas/testsuite/ChangeLog * gas/avr/diffreloc_withrelax.d: New testcase. * gas/avr/noreloc_withoutrelax.d: Likewise. * gas/avr/relax.s: Likewise. include/ChangeLog * elf/avr.h: Add new DIFF relocs. ld/testsuite/ChangeLog * ld-avr/norelax_diff.d: New testcase. * ld-avr/relax_diff.d: Likewise. * ld-avr/relax.s: Likewise.
88 lines
3.3 KiB
C
88 lines
3.3 KiB
C
/* AVR ELF support for BFD.
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Copyright (C) 1999-2014 Free Software Foundation, Inc.
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Contributed by Denis Chertykov <denisc@overta.ru>
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef _ELF_AVR_H
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#define _ELF_AVR_H
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#include "elf/reloc-macros.h"
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/* Processor specific flags for the ELF header e_flags field. */
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#define EF_AVR_MACH 0x7F
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/* If bit #7 is set, it is assumed that the elf file uses local symbols
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as reference for the relocations so that linker relaxation is possible. */
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#define EF_AVR_LINKRELAX_PREPARED 0x80
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#define E_AVR_MACH_AVR1 1
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#define E_AVR_MACH_AVR2 2
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#define E_AVR_MACH_AVR25 25
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#define E_AVR_MACH_AVR3 3
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#define E_AVR_MACH_AVR31 31
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#define E_AVR_MACH_AVR35 35
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#define E_AVR_MACH_AVR4 4
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#define E_AVR_MACH_AVR5 5
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#define E_AVR_MACH_AVR51 51
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#define E_AVR_MACH_AVR6 6
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#define E_AVR_MACH_XMEGA1 101
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#define E_AVR_MACH_XMEGA2 102
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#define E_AVR_MACH_XMEGA3 103
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#define E_AVR_MACH_XMEGA4 104
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#define E_AVR_MACH_XMEGA5 105
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#define E_AVR_MACH_XMEGA6 106
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#define E_AVR_MACH_XMEGA7 107
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/* Relocations. */
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START_RELOC_NUMBERS (elf_avr_reloc_type)
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RELOC_NUMBER (R_AVR_NONE, 0)
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RELOC_NUMBER (R_AVR_32, 1)
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RELOC_NUMBER (R_AVR_7_PCREL, 2)
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RELOC_NUMBER (R_AVR_13_PCREL, 3)
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RELOC_NUMBER (R_AVR_16, 4)
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RELOC_NUMBER (R_AVR_16_PM, 5)
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RELOC_NUMBER (R_AVR_LO8_LDI, 6)
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RELOC_NUMBER (R_AVR_HI8_LDI, 7)
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RELOC_NUMBER (R_AVR_HH8_LDI, 8)
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RELOC_NUMBER (R_AVR_LO8_LDI_NEG, 9)
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RELOC_NUMBER (R_AVR_HI8_LDI_NEG, 10)
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RELOC_NUMBER (R_AVR_HH8_LDI_NEG, 11)
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RELOC_NUMBER (R_AVR_LO8_LDI_PM, 12)
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RELOC_NUMBER (R_AVR_HI8_LDI_PM, 13)
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RELOC_NUMBER (R_AVR_HH8_LDI_PM, 14)
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RELOC_NUMBER (R_AVR_LO8_LDI_PM_NEG, 15)
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RELOC_NUMBER (R_AVR_HI8_LDI_PM_NEG, 16)
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RELOC_NUMBER (R_AVR_HH8_LDI_PM_NEG, 17)
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RELOC_NUMBER (R_AVR_CALL, 18)
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RELOC_NUMBER (R_AVR_LDI, 19)
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RELOC_NUMBER (R_AVR_6, 20)
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RELOC_NUMBER (R_AVR_6_ADIW, 21)
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RELOC_NUMBER (R_AVR_MS8_LDI, 22)
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RELOC_NUMBER (R_AVR_MS8_LDI_NEG, 23)
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RELOC_NUMBER (R_AVR_LO8_LDI_GS, 24)
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RELOC_NUMBER (R_AVR_HI8_LDI_GS, 25)
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RELOC_NUMBER (R_AVR_8, 26)
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RELOC_NUMBER (R_AVR_8_LO8, 27)
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RELOC_NUMBER (R_AVR_8_HI8, 28)
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RELOC_NUMBER (R_AVR_8_HLO8, 29)
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RELOC_NUMBER (R_AVR_DIFF8, 30)
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RELOC_NUMBER (R_AVR_DIFF16, 31)
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RELOC_NUMBER (R_AVR_DIFF32, 32)
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END_RELOC_NUMBERS (R_AVR_max)
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#endif /* _ELF_AVR_H */
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