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81b42bcab1
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.
76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/* BFD support for the ft32 processor.
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Copyright (C) 2013-2017 Free Software Foundation, Inc.
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Written by FTDI (support@ftdichip.com)
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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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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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static const bfd_arch_info_type arch_info_struct[] =
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{
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{
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32, /* 32 bits in a word. */
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32, /* 32 bits in an address. */
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8, /* 8 bits in a byte. */
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bfd_arch_ft32, /* enum bfd_architecture arch. */
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bfd_mach_ft32,
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"ft32", /* Arch name. */
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"ft32", /* Printable name. */
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2, /* Unsigned int section alignment power. */
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FALSE, /* The one and only. */
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bfd_default_compatible,
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bfd_default_scan,
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bfd_arch_default_fill,
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&arch_info_struct[1],
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},
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{
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32, /* 32 bits in a word. */
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32, /* 32 bits in an address. */
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8, /* 8 bits in a byte. */
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bfd_arch_ft32, /* enum bfd_architecture arch. */
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bfd_mach_ft32b,
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"ft32b", /* Arch name. */
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"ft32b", /* Printable name. */
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2, /* Unsigned int section alignment power. */
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FALSE, /* The one and only. */
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bfd_default_compatible,
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bfd_default_scan,
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bfd_arch_default_fill,
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0,
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},
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};
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const bfd_arch_info_type bfd_ft32_arch =
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{
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32, /* 32 bits in a word. */
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32, /* 32 bits in an address. */
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8, /* 8 bits in a byte. */
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bfd_arch_ft32, /* enum bfd_architecture arch. */
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bfd_mach_ft32,
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"ft32", /* Arch name. */
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"ft32", /* Printable name. */
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2, /* Unsigned int section alignment power. */
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TRUE, /* The one and only. */
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bfd_default_compatible,
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bfd_default_scan,
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bfd_arch_default_fill,
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arch_info_struct,
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};
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