Files
Barney Stratford f36e88862f Add support for the AVR Tiny series of microcontrollers.
* archures.c: add avrtiny architecture for avr target.
	* bfd-in2.h: Regenerate.
	* cpu-avr.c (arch_info_struct): add avrtiny arch info.
	* elf32-avr.c (elf_avr_howto_table): new relocation R_AVR_LDS_STS_16
	added for 16 bit LDS/STS instruction of avrtiny arch.
	(avr_reloc_map): reloc R_AVR_LDS_STS_16 is mapped to
	BFD_RELOC_AVR_LDS_STS_16.
	(bfd_elf_avr_final_write_processing): select machine number avrtiny arch.
	(elf32_avr_object_p): set machine number for avrtiny arch.
	* libbfd.h: Regenerate.
	* reloc.c: Add documentation for BFD_RELOC_AVR_LDS_STS_16 reloc.

         * config/tc-avr.c (mcu_types): Add avrtiny arch.
	Add avrtiny arch devices attiny4, attiny5, attiny9, attiny10, attiny20
	and attiny40.
	(md_show_usage): Add avrtiny arch in usage message.
	(avr_operand): validate and issue error for invalid register for avrtiny.
	add new reloc exp for 16 bit lds/sts instruction.
	(md_apply_fix): check 16 bit lds/sts operand for out of range and encode.
	(md_assemble): check ISA for arch and issue diagnostic.

	* include/elf/avr.h (E_AVR_MACH_AVRTINY): define avrtiny machine number.
	(R_AVR_LDS_STS_16): define 16 bit lds/sts reloc number.
	* include/opcode/avr.h (AVR_ISA_TINY): define avrtiny specific ISA.
	(AVR_ISA_2xxxa): define ISA without LPM.
	(AVR_ISA_AVRTINY): define avrtiny arch ISA.
	Add doc for contraint used in 16 bit lds/sts.
	Adjust ISA group for icall, ijmp, pop and push.
	Add 16 bit lds/sts encoding and update 32 bit lds/sts constraints.
	* opcodes/avr-dis.c (avr_operand): Handle constraint j for 16 bit lds/sts.
	(print_insn_avr): do not select opcode if insn ISA is avrtiny and machine
	is not avrtiny.

	* Makefile.am (ALL_EMULATION_SOURCES): add avrtiny emulation source.
	(eavrtiny.c): add rules for avrtiny emulation source.
	* Makefile.in: Regenerate.
	* configure.tgt: Add avrtiny to avr target emulations.
	* scripttempl/avrtiny.sc: New file.
	linker script template for avrtiny arch.
	* emulparams/avrtiny.sh: New file.
	emulation parameters for avrtiny arch.
2014-07-01 10:20:17 +01:00

91 lines
3.4 KiB
C

/* AVR ELF support for BFD.
Copyright (C) 1999-2014 Free Software Foundation, Inc.
Contributed by Denis Chertykov <denisc@overta.ru>
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _ELF_AVR_H
#define _ELF_AVR_H
#include "elf/reloc-macros.h"
/* Processor specific flags for the ELF header e_flags field. */
#define EF_AVR_MACH 0x7F
/* If bit #7 is set, it is assumed that the elf file uses local symbols
as reference for the relocations so that linker relaxation is possible. */
#define EF_AVR_LINKRELAX_PREPARED 0x80
#define E_AVR_MACH_AVR1 1
#define E_AVR_MACH_AVR2 2
#define E_AVR_MACH_AVR25 25
#define E_AVR_MACH_AVR3 3
#define E_AVR_MACH_AVR31 31
#define E_AVR_MACH_AVR35 35
#define E_AVR_MACH_AVR4 4
#define E_AVR_MACH_AVR5 5
#define E_AVR_MACH_AVR51 51
#define E_AVR_MACH_AVR6 6
#define E_AVR_MACH_AVRTINY 100
#define E_AVR_MACH_XMEGA1 101
#define E_AVR_MACH_XMEGA2 102
#define E_AVR_MACH_XMEGA3 103
#define E_AVR_MACH_XMEGA4 104
#define E_AVR_MACH_XMEGA5 105
#define E_AVR_MACH_XMEGA6 106
#define E_AVR_MACH_XMEGA7 107
/* Relocations. */
START_RELOC_NUMBERS (elf_avr_reloc_type)
RELOC_NUMBER (R_AVR_NONE, 0)
RELOC_NUMBER (R_AVR_32, 1)
RELOC_NUMBER (R_AVR_7_PCREL, 2)
RELOC_NUMBER (R_AVR_13_PCREL, 3)
RELOC_NUMBER (R_AVR_16, 4)
RELOC_NUMBER (R_AVR_16_PM, 5)
RELOC_NUMBER (R_AVR_LO8_LDI, 6)
RELOC_NUMBER (R_AVR_HI8_LDI, 7)
RELOC_NUMBER (R_AVR_HH8_LDI, 8)
RELOC_NUMBER (R_AVR_LO8_LDI_NEG, 9)
RELOC_NUMBER (R_AVR_HI8_LDI_NEG, 10)
RELOC_NUMBER (R_AVR_HH8_LDI_NEG, 11)
RELOC_NUMBER (R_AVR_LO8_LDI_PM, 12)
RELOC_NUMBER (R_AVR_HI8_LDI_PM, 13)
RELOC_NUMBER (R_AVR_HH8_LDI_PM, 14)
RELOC_NUMBER (R_AVR_LO8_LDI_PM_NEG, 15)
RELOC_NUMBER (R_AVR_HI8_LDI_PM_NEG, 16)
RELOC_NUMBER (R_AVR_HH8_LDI_PM_NEG, 17)
RELOC_NUMBER (R_AVR_CALL, 18)
RELOC_NUMBER (R_AVR_LDI, 19)
RELOC_NUMBER (R_AVR_6, 20)
RELOC_NUMBER (R_AVR_6_ADIW, 21)
RELOC_NUMBER (R_AVR_MS8_LDI, 22)
RELOC_NUMBER (R_AVR_MS8_LDI_NEG, 23)
RELOC_NUMBER (R_AVR_LO8_LDI_GS, 24)
RELOC_NUMBER (R_AVR_HI8_LDI_GS, 25)
RELOC_NUMBER (R_AVR_8, 26)
RELOC_NUMBER (R_AVR_8_LO8, 27)
RELOC_NUMBER (R_AVR_8_HI8, 28)
RELOC_NUMBER (R_AVR_8_HLO8, 29)
RELOC_NUMBER (R_AVR_DIFF8, 30)
RELOC_NUMBER (R_AVR_DIFF16, 31)
RELOC_NUMBER (R_AVR_DIFF32, 32)
RELOC_NUMBER (R_AVR_LDS_STS_16, 33)
END_RELOC_NUMBERS (R_AVR_max)
#endif /* _ELF_AVR_H */