2015-01-28 13:06:43 +08:00
|
|
|
/* tc-ft32.h -- Header file for tc-ft32.c.
|
|
|
|
|
2024-01-04 19:52:08 +08:00
|
|
|
Copyright (C) 2013-2024 Free Software Foundation, Inc.
|
2015-01-28 13:06:43 +08:00
|
|
|
Contributed by FTDI (support@ftdichip.com)
|
|
|
|
|
|
|
|
This file is part of GAS, the GNU Assembler.
|
|
|
|
|
|
|
|
GAS 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, or (at your option)
|
|
|
|
any later version.
|
|
|
|
|
|
|
|
GAS 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 GAS; see the file COPYING. If not, write to the Free Software
|
|
|
|
Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
|
|
|
|
|
|
|
#define TC_FT32 1
|
|
|
|
#define TARGET_BYTES_BIG_ENDIAN 0
|
|
|
|
#define WORKING_DOT_WORD
|
|
|
|
|
|
|
|
/* This macro is the BFD architecture to pass to `bfd_set_arch_mach'. */
|
2016-05-21 16:21:32 +08:00
|
|
|
#define TARGET_FORMAT "elf32-ft32"
|
2015-01-28 13:06:43 +08:00
|
|
|
|
|
|
|
#define TARGET_ARCH bfd_arch_ft32
|
|
|
|
|
|
|
|
#define md_undefined_symbol(NAME) 0
|
|
|
|
|
|
|
|
/* These macros must be defined, but is will be a fatal assembler
|
|
|
|
error if we ever hit them. */
|
|
|
|
#define md_estimate_size_before_relax(A, B) (as_fatal (_("estimate size\n")), 0)
|
|
|
|
#define md_convert_frag(B, S, F) (as_fatal (_("convert_frag\n")))
|
|
|
|
|
|
|
|
/* PC relative operands are relative to the start of the opcode, and
|
|
|
|
the operand is always one byte into the opcode. */
|
|
|
|
#define md_pcrel_from(FIX) \
|
|
|
|
((FIX)->fx_where + (FIX)->fx_frag->fr_address - 1)
|
|
|
|
|
|
|
|
#define md_section_align(SEGMENT, SIZE) (SIZE)
|
|
|
|
|
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.
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 23:33:24 +08:00
|
|
|
/* If this macro returns non-zero, it guarantees that a relocation will be emitted
|
|
|
|
even when the value can be resolved locally. Do that if linkrelax is turned on */
|
|
|
|
#define TC_FORCE_RELOCATION(fix) ft32_force_relocation (fix)
|
|
|
|
#define TC_FORCE_RELOCATION_SUB_SAME(fix, seg) \
|
|
|
|
(! SEG_NORMAL (seg) || ft32_force_relocation (fix))
|
|
|
|
extern int ft32_force_relocation (struct fix *);
|
|
|
|
|
|
|
|
#define TC_LINKRELAX_FIXUP(seg) \
|
|
|
|
((seg->flags & SEC_CODE) || (seg->flags & SEC_DEBUGGING))
|
|
|
|
|
|
|
|
/* This macro is evaluated for any fixup with a fx_subsy that
|
|
|
|
fixup_segment cannot reduce to a number. If the macro returns
|
|
|
|
false an error will be reported. */
|
|
|
|
#define TC_VALIDATE_FIX_SUB(fix, seg) ft32_validate_fix_sub (fix)
|
|
|
|
extern int ft32_validate_fix_sub (struct fix *);
|
|
|
|
|
|
|
|
/* The difference between same-section symbols may be affected by linker
|
|
|
|
relaxation, so do not resolve such expressions in the assembler. */
|
|
|
|
#define md_allow_local_subtract(l,r,s) ft32_allow_local_subtract (l, r, s)
|
Use bool in gas
* as.h (POISON_BFD_BOOLEAN): Define.
* as.c, * as.h, * atof-generic.c, * config/atof-ieee.c,
* config/bfin-aux.h, * config/obj-coff.c, * config/obj-ecoff.c,
* config/obj-elf.c, * config/obj-elf.h, * config/obj-som.c,
* config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c,
* config/tc-arc.h, * config/tc-arm.c, * config/tc-arm.h,
* config/tc-avr.c, * config/tc-avr.h, * config/tc-bfin.c,
* config/tc-bfin.h, * config/tc-bpf.c, * config/tc-cris.c,
* config/tc-csky.c, * config/tc-csky.h, * config/tc-d10v.c,
* config/tc-d10v.h, * config/tc-d30v.c, * config/tc-d30v.h,
* config/tc-dlx.c, * config/tc-dlx.h, * config/tc-epiphany.c,
* config/tc-epiphany.h, * config/tc-fr30.c, * config/tc-fr30.h,
* config/tc-frv.c, * config/tc-frv.h, * config/tc-ft32.c,
* config/tc-ft32.h, * config/tc-h8300.c, * config/tc-hppa.c,
* config/tc-i386-intel.c, * config/tc-i386.c, * config/tc-ia64.c,
* config/tc-ip2k.c, * config/tc-iq2000.c, * config/tc-iq2000.h,
* config/tc-lm32.c, * config/tc-lm32.h, * config/tc-m32c.c,
* config/tc-m32c.h, * config/tc-m32r.c, * config/tc-m32r.h,
* config/tc-m68hc11.c, * config/tc-m68k.c, * config/tc-mcore.c,
* config/tc-mcore.h, * config/tc-mep.c, * config/tc-mep.h,
* config/tc-metag.c, * config/tc-metag.h,
* config/tc-microblaze.c, * config/tc-mips.c, * config/tc-mips.h,
* config/tc-mmix.c, * config/tc-mn10200.c, * config/tc-mn10300.c,
* config/tc-mn10300.h, * config/tc-moxie.c, * config/tc-msp430.c,
* config/tc-msp430.h, * config/tc-mt.c, * config/tc-mt.h,
* config/tc-nds32.c, * config/tc-nds32.h, * config/tc-nios2.c,
* config/tc-ns32k.c, * config/tc-or1k.c, * config/tc-or1k.h,
* config/tc-pdp11.c, * config/tc-ppc.c, * config/tc-pru.c,
* config/tc-pru.h, * config/tc-riscv.c, * config/tc-riscv.h,
* config/tc-rx.c, * config/tc-rx.h, * config/tc-s12z.c,
* config/tc-s12z.h, * config/tc-s390.c, * config/tc-score.c,
* config/tc-score.h, * config/tc-score7.c, * config/tc-sh.c,
* config/tc-sh.h, * config/tc-spu.c, * config/tc-tic54x.c,
* config/tc-tic6x.c, * config/tc-tic6x.h, * config/tc-tilegx.c,
* config/tc-tilepro.c, * config/tc-v850.c, * config/tc-v850.h,
* config/tc-visium.c, * config/tc-visium.h, * config/tc-wasm32.c,
* config/tc-wasm32.h, * config/tc-xc16x.c, * config/tc-xgate.c,
* config/tc-xstormy16.c, * config/tc-xstormy16.h,
* config/tc-xtensa.c, * config/tc-xtensa.h, * config/tc-z80.c,
* config/tc-z8k.c, * config/xtensa-istack.h,
* config/xtensa-relax.c, * config/xtensa-relax.h, * dw2gencfi.c,
* dwarf2dbg.c, * dwarf2dbg.h, * expr.c, * expr.h, * frags.c,
* frags.h, * listing.c, * macro.c, * output-file.c, * read.c,
* read.h, * stabs.c, * symbols.c, * write.c: Replace bfd_boolean
with bool, FALSE with false, and TRUE with true.
2021-03-31 08:12:05 +08:00
|
|
|
extern bool ft32_allow_local_subtract (expressionS *, expressionS *, segT);
|
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.
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 23:33:24 +08:00
|
|
|
|
2015-01-28 13:06:43 +08:00
|
|
|
#define md_operand(x)
|