81b42bcab1
FT32B is a new FT32 family member. It has a code compression scheme, which requires the use of linker relaxations. The change is quite large, so submission is in several parts.
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Part 2 adds a relaxation pass, which actually implements the code compression scheme.
bfd * archures.c: Add bfd_mach_ft32b.
* cpu-ft32.c: Add arch_info_struct.
* elf32-ft32.c: Add R_FT32_RELAX, SC0, SC1,
DIFF32. (ft32_elf_relocate_section): Add clauses
for R_FT32_SC0, SC1, DIFF32. (ft32_reloc_shortable,
elf32_ft32_is_diff_reloc, elf32_ft32_adjust_diff_reloc_value,
elf32_ft32_adjust_reloc_if_spans_insn,
elf32_ft32_relax_delete_bytes, elf32_ft32_relax_is_branch_target,
ft32_elf_relax_section): New function.
* reloc.c: Add BFD_RELOC_FT32_RELAX, SC0, SC1, DIFF32.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
gas * config/tc-ft32.c (md_assemble): add relaxation reloc
BFD_RELOC_FT32_RELAX. (md_longopts): Add "norelax" and
"no-relax". (md_apply_fix): Add reloc BFD_RELOC_FT32_DIFF32.
(relaxable_section, ft32_validate_fix_sub, ft32_force_relocation,
ft32_allow_local_subtract): New function.
* config/tc-ft32.h: remove unused MD_PCREL_FROM_SECTION.
* testsuite/gas/ft32/insnsc.s: New test exercising all FT32B
shortcodes.
include * elf/ft32.h: Add R_FT32_RELAX, SC0, SC1, DIFF32.
2017-11-01 15:33:24 +00:00
b19e0aeb53
ft32: fixup TARGET_FORMAT
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Nothing ever assigns to ft32_target_format, so its always null, which means the
bfd target arch is the default one. It looks like ft32 only has one target
format, so we can just define TARGET_FORMAT to be that literal string.
gas/ChangeLog:
2016-05-24 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>
* config/tc-ft32.h (DEFAULT_TARGET_FORMAT): Remove.
(ft32_target_format): Likewise.
(TARGET_FORMAT): Adjust.
2016-05-24 08:49:46 -04:00
3f8107ab38
FT32 initial support
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FT32 is a new 32-bit RISC core developed by FTDI for embedded applications.
* configure.ac: Add FT32 support.
* configure: Regenerate.
bfd/
* Makefile.am: Add FT32 files.
* archures.c (enum bfd_architecture): Add bfd_arch_ft32.
(bfd_mach_ft32): Define.
(bfd_ft32_arch): Declare.
(bfd_archures_list): Add bfd_ft32_arch.
* config.bfd: Handle FT32.
* configure.ac: Likewise.
* cpu-ft32.c: New file.
* elf32-ft32.c: New file.
* reloc.c (BFD_RELOC_FT32_10, BFD_RELOC_FT32_20, BFD_RELOC_FT32_17,
BFD_RELOC_FT32_18): Define.
* targets.c (_bfd_target_vector): Add ft32_elf32_vec.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* Makefile.in: Regenerate.
* configure: Regenerate.
* po/SRC-POTFILES.in: Regenerate.
binutils/
* readelf.c: Add FT32 support.
gas/
* Makefile.am: Add FT32 files.
* config/tc-ft32.c: New file.
* config/tc-ft32.h: New file.
* configure.tgt: Add FT32 support.
* Makefile.in: Regenerate.
* po/POTFILES.in: Regenerate.
gas/testsuite/
* gas/ft32/ft32.exp: New file.
* gas/ft32/insn.d: New file.
* gas/ft32/insn.s: New file.
include/
* dis-asm.h (print_insn_ft32): Declare.
include/elf/
* common.h (EM_FT32): Define.
* ft32.h: New file.
include/opcode/
* ft32.h: New file.
ld/
* Makefile.am: Add FT32 files.
* configure.tgt: Handle FT32 target.
* emulparams/elf32ft32.sh: New file.
* scripttempl/ft32.sc: New file.
* Makefile.in: Regenerate.
opcodes/
* Makefile.am: Add FT32 files.
* configure.ac: Handle FT32.
* disassemble.c (disassembler): Call print_insn_ft32.
* ft32-dis.c: New file.
* ft32-opc.c: New file.
* Makefile.in: Regenerate.
* configure: Regenerate.
* po/POTFILES.in: Regenerate.
2015-01-28 16:25:18 +10:30
Alan Modra
James Bowman
Trevor Saunders