1 /* tc-crx.h -- Header file for tc-crx.c, the CRX GAS port. 2 Copyright (C) 2004-2016 Free Software Foundation, Inc. 3 4 Contributed by Tomer Levi, NSC, Israel. 5 Originally written for GAS 2.12 by Tomer Levi, NSC, Israel. 6 Updates, BFDizing, GNUifying and ELF support by Tomer Levi. 7 8 This file is part of GAS, the GNU Assembler. 9 10 GAS is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3, or (at your option) 13 any later version. 14 15 GAS is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with GAS; see the file COPYING. If not, write to the 22 Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, 23 MA 02110-1301, USA. */ 24 25 #ifndef TC_CRX_H 26 #define TC_CRX_H 27 28 #define TC_CRX 1 29 30 #define TARGET_BYTES_BIG_ENDIAN 0 31 32 #define TARGET_FORMAT "elf32-crx" 33 #define TARGET_ARCH bfd_arch_crx 34 35 #define WORKING_DOT_WORD 36 #define LOCAL_LABEL_PREFIX '.' 37 38 #define md_undefined_symbol(s) 0 39 #define md_number_to_chars number_to_chars_littleendian 40 41 /* We do relaxing in the assembler as well as the linker. */ 42 extern const struct relax_type md_relax_table[]; 43 #define TC_GENERIC_RELAX_TABLE md_relax_table 44 45 /* We do not want to adjust any relocations to make implementation of 46 linker relaxations easier. */ 47 #define tc_fix_adjustable(fixP) 0 48 49 /* We need to force out some relocations when relaxing. */ 50 #define TC_FORCE_RELOCATION(FIXP) crx_force_relocation (FIXP) 51 extern int crx_force_relocation (struct fix *); 52 53 /* Fixup debug sections since we will never relax them. */ 54 #define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC) 55 56 /* CRX instructions, with operands included, are a multiple 57 of two bytes long. */ 58 #define DWARF2_LINE_MIN_INSN_LENGTH 2 59 60 /* This is called by emit_expr when creating a reloc for a cons. 61 We could use the definition there, except that we want to handle 62 the CRX reloc type specially, rather than the BFD_RELOC type. */ 63 #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \ 64 (void) RELOC, \ 65 fix_new_exp (FRAG, OFF, (int) LEN, EXP, 0, \ 66 LEN == 1 ? BFD_RELOC_CRX_NUM8 \ 67 : LEN == 2 ? BFD_RELOC_CRX_NUM16 \ 68 : LEN == 4 ? BFD_RELOC_CRX_NUM32 \ 69 : BFD_RELOC_NONE); 70 71 /* Give an error if a frag containing code is not aligned to a 2-byte 72 boundary. */ 73 #define md_frag_check(FRAGP) \ 74 if ((FRAGP)->has_code \ 75 && (((FRAGP)->fr_address + (FRAGP)->insn_addr) & 1) != 0) \ 76 as_bad_where ((FRAGP)->fr_file, (FRAGP)->fr_line, \ 77 _("instruction address is not a multiple of 2")); 78 79 #endif /* TC_CRX_H */ 80
