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80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/* tc-crx.h -- Header file for tc-crx.c, the CRX GAS port.
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Copyright (C) 2004-2017 Free Software Foundation, Inc.
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Contributed by Tomer Levi, NSC, Israel.
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Originally written for GAS 2.12 by Tomer Levi, NSC, Israel.
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Updates, BFDizing, GNUifying and ELF support by Tomer Levi.
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This file is part of GAS, the GNU Assembler.
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GAS 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, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the
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Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef TC_CRX_H
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#define TC_CRX_H
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#define TC_CRX 1
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#define TARGET_BYTES_BIG_ENDIAN 0
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#define TARGET_FORMAT "elf32-crx"
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#define TARGET_ARCH bfd_arch_crx
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#define WORKING_DOT_WORD
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#define LOCAL_LABEL_PREFIX '.'
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#define md_undefined_symbol(s) 0
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#define md_number_to_chars number_to_chars_littleendian
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/* We do relaxing in the assembler as well as the linker. */
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extern const struct relax_type md_relax_table[];
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#define TC_GENERIC_RELAX_TABLE md_relax_table
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/* We do not want to adjust any relocations to make implementation of
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linker relaxations easier. */
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#define tc_fix_adjustable(fixP) 0
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/* We need to force out some relocations when relaxing. */
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#define TC_FORCE_RELOCATION(FIXP) crx_force_relocation (FIXP)
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extern int crx_force_relocation (struct fix *);
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/* Fixup debug sections since we will never relax them. */
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#define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC)
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/* CRX instructions, with operands included, are a multiple
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of two bytes long. */
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#define DWARF2_LINE_MIN_INSN_LENGTH 2
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/* This is called by emit_expr when creating a reloc for a cons.
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We could use the definition there, except that we want to handle
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the CRX reloc type specially, rather than the BFD_RELOC type. */
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#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
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(void) RELOC, \
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fix_new_exp (FRAG, OFF, (int) LEN, EXP, 0, \
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LEN == 1 ? BFD_RELOC_CRX_NUM8 \
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: LEN == 2 ? BFD_RELOC_CRX_NUM16 \
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: LEN == 4 ? BFD_RELOC_CRX_NUM32 \
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: BFD_RELOC_NONE);
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/* Give an error if a frag containing code is not aligned to a 2-byte
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boundary. */
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#define md_frag_check(FRAGP) \
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if ((FRAGP)->has_code \
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&& (((FRAGP)->fr_address + (FRAGP)->insn_addr) & 1) != 0) \
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as_bad_where ((FRAGP)->fr_file, (FRAGP)->fr_line, \
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_("instruction address is not a multiple of 2"));
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#endif /* TC_CRX_H */
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