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S, Pitchumani, Tuesday, June 24, 2014 1:57 PM > To: Barney Stratford > Cc: binutils@sourceware.org; Denis Chertykov > Subject: RE: [PATCH] Add support for ATtiny4/5/9/10/20/40 microcontrollers > > > -----Original Message----- > > From: binutils-owner@sourceware.org [mailto:binutils- > owner@sourceware.org] > > On Behalf Of Barney Stratford > > Sent: Sunday, June 15, 2014 12:35 AM > > To: binutils@sourceware.org > > Subject: [PATCH] Add support for ATtiny4/5/9/10/20/40 microcontrollers > > > > I've recently been working on getting the assembler and linker to work > > with the ATtiny40 family of microcontrollers. I've also added some > > functionality to the avr assembler in general. As this may be useful to > > others, I'm attaching my patches against the current git head. Can > someone > > review and commit them please? > > > > 1_avrtiny10.patch contains the basic avrtiny10 code, including a linker > > reloc for the 16-bit version of the lds and sts instructions. > > > > 2_avr_io_relocs.patch allows you to refer to the I/O registers by symbol > > name. > > > > 3_avr_reg_name.patch allows you to refer to r26-r31 by name as > > /[xyz][hl]?/. It also fixes a bug that would prevent you from using a > > symbol whose name begins with 'r' to refer to a register. > > Hi, > > I looked at your patches. Atmel distributed binutils also have tiny > architecture support. Though both are similar, there are some differences > such as architecture name, id, LDS16 reloc size, memory access range > (0xbf) etc. > > I can check all the differences and we can sync to avoid conflicts. Hi, I have merged the tiny support patch of Barney Startford and Atmel. Updated patch is attached. Please review. If OK, could someone commit please? Regards, Pitchumani bfd/ChangeLog 2014-06-30 Barney Stratford <barney_stratford@fastmail.fm> Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> Pitchumani Sivanupandi <pitchumani.s@atmel.com> Soundararajan <Sounderarajan.D@atmel.com> * 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. gas/ChangeLog 2014-06-30 Barney Stratford <barney_stratford@fastmail.fm> Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> Pitchumani Sivanupandi <pitchumani.s@atmel.com> Soundararajan <Sounderarajan.D@atmel.com> * 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. ChangeLog 2014-06-30 Barney Stratford <barney_stratford@fastmail.fm> Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> Pitchumani Sivanupandi <pitchumani.s@atmel.com> Soundararajan <Sounderarajan.D@atmel.com> * 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. ld/ChangeLog 2014-06-30 Barney Stratford <barney_stratford@fastmail.fm> Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com> Pitchumani Sivanupandi <pitchumani.s@atmel.com> Soundararajan <Sounderarajan.D@atmel.com> * 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.
Attachment:
avrtiny-support.patch
Description: avrtiny-support.patch
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