1 /* tc-m32r.h -- Header file for tc-m32r.c. 2 Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. 3 4 This file is part of GAS, the GNU Assembler. 5 6 GAS is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GAS is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GAS; see the file COPYING. If not, write to 18 the Free Software Foundation, 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 #define TC_M32R 22 23 #ifndef BFD_ASSEMBLER 24 /* leading space so will compile with cc */ 25 #error M32R support requires BFD_ASSEMBLER 26 #endif 27 28 #define LISTING_HEADER "M32R GAS " 29 30 /* The target BFD architecture. */ 31 #define TARGET_ARCH bfd_arch_m32r 32 33 #define TARGET_FORMAT "elf32-m32r" 34 35 #define TARGET_BYTES_BIG_ENDIAN 1 36 37 /* call md_pcrel_from_section, not md_pcrel_from */ 38 long md_pcrel_from_section PARAMS ((struct fix *, segT)); 39 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC) 40 41 /* Permit temporary numeric labels. */ 42 #define LOCAL_LABELS_FB 1 43 44 #define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */ 45 46 /* We don't need to handle .word strangely. */ 47 #define WORKING_DOT_WORD 48 49 /* For 8 vs 16 vs 32 bit branch selection. */ 50 extern const struct relax_type md_relax_table[]; 51 #define TC_GENERIC_RELAX_TABLE md_relax_table 52 #if 0 53 extern void m32r_prepare_relax_scan (); 54 #define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \ 55 m32r_prepare_relax_scan (fragP, address, aim, this_state, this_type) 56 #else 57 extern long m32r_relax_frag PARAMS ((fragS *, long)); 58 #define md_relax_frag(fragP, stretch) \ 59 m32r_relax_frag (fragP, stretch) 60 #endif 61 /* Account for nop if 32 bit insn falls on odd halfword boundary. */ 62 #define TC_CGEN_MAX_RELAX(insn, len) (6) 63 64 /* Alignments are used to ensure 32 bit insns live on 32 bit boundaries, so 65 we use a special alignment function to insert the correct nop pattern. */ 66 extern int m32r_do_align PARAMS ((int, const char *, int, int)); 67 #define md_do_align(n, fill, len, max, l) \ 68 if (m32r_do_align (n, fill, len, max)) goto l 69 70 #define MD_APPLY_FIX3 71 #define md_apply_fix3 gas_cgen_md_apply_fix3 72 73 #define obj_fix_adjustable(fixP) m32r_fix_adjustable(fixP) 74 75 /* After creating a fixup for an instruction operand, we need to check for 76 HI16 relocs and queue them up for later sorting. */ 77 #define md_cgen_record_fixup_exp m32r_cgen_record_fixup_exp 78 79 #define TC_HANDLES_FX_DONE 80 81 #define tc_gen_reloc gas_cgen_tc_gen_reloc 82 83 #define tc_frob_file() m32r_frob_file () 84 extern void m32r_frob_file PARAMS ((void)); 85 86 /* When relaxing, we need to emit various relocs we otherwise wouldn't. */ 87 #define TC_FORCE_RELOCATION(fix) m32r_force_relocation (fix) 88 extern int m32r_force_relocation (); 89 90 /* Ensure insns at labels are aligned to 32 bit boundaries. */ 91 int m32r_fill_insn PARAMS ((int)); 92 #define md_after_pass_hook() m32r_fill_insn (1) 93 #define TC_START_LABEL(ch, ptr) (ch == ':' && m32r_fill_insn (0)) 94 95 /* Add extra M32R sections. */ 96 #define ELF_TC_SPECIAL_SECTIONS \ 97 { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, \ 98 { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, 99 100 #define md_cleanup m32r_elf_section_change_hook 101 #define md_elf_section_change_hook m32r_elf_section_change_hook 102 extern void m32r_elf_section_change_hook (); 103