1 /* tc-mep.h -- Header file for tc-mep.c. 2 Copyright (C) 2001-2016 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 3, 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, 51 Franklin Street, Fifth Floor, 19 Boston, MA 02110-1301, USA. */ 20 21 #define TC_MEP 22 23 /* Support computed relocations. */ 24 #define OBJ_COMPLEX_RELC 25 26 /* Support many operands per instruction. */ 27 #define GAS_CGEN_MAX_FIXUPS 10 28 29 #define LISTING_HEADER "MEP GAS " 30 31 /* The target BFD architecture. */ 32 #define TARGET_ARCH bfd_arch_mep 33 34 #define TARGET_FORMAT (target_big_endian ? "elf32-mep" : "elf32-mep-little") 35 36 /* This is the default. */ 37 #define TARGET_BYTES_BIG_ENDIAN 0 38 39 /* Permit temporary numeric labels. */ 40 #define LOCAL_LABELS_FB 1 41 42 /* Do not define DIFF_EXPR_OK - the MeP does not have a 32-bit PC-relative reloc. */ 43 44 /* We don't need to handle .word strangely. */ 45 #define WORKING_DOT_WORD 46 47 /* Values passed to md_apply_fix don't include the symbol value. */ 48 #define MD_APPLY_SYM_VALUE(FIX) 0 49 50 #define MD_APPLY_FIX 51 #define md_apply_fix mep_apply_fix 52 extern void mep_apply_fix (struct fix *, valueT *, segT); 53 54 /* Call md_pcrel_from_section(), not md_pcrel_from(). */ 55 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC) 56 extern long md_pcrel_from_section (struct fix *, segT); 57 58 #define tc_frob_file() mep_frob_file () 59 extern void mep_frob_file (void); 60 61 #define tc_fix_adjustable(fixP) mep_fix_adjustable (fixP) 62 extern bfd_boolean mep_fix_adjustable (struct fix *); 63 64 /* After creating a fixup for an instruction operand, we need 65 to check for HI16 relocs and queue them up for later sorting. */ 66 #define md_cgen_record_fixup_exp mep_cgen_record_fixup_exp 67 68 /* When relaxing, we need to emit various relocs we otherwise wouldn't. */ 69 #define TC_FORCE_RELOCATION(fix) mep_force_relocation (fix) 70 extern int mep_force_relocation (struct fix *); 71 72 #define tc_gen_reloc gas_cgen_tc_gen_reloc 73 74 extern void gas_cgen_md_operand (expressionS *); 75 #define md_operand(x) gas_cgen_md_operand (x) 76 77 #define md_flush_pending_output() mep_flush_pending_output() 78 extern int mep_flush_pending_output(void); 79 80 extern const struct relax_type md_relax_table[]; 81 #define TC_GENERIC_RELAX_TABLE md_relax_table 82 83 extern long mep_relax_frag (segT, fragS *, long); 84 #define md_relax_frag mep_relax_frag 85 86 /* Account for inserting a jmp after the insn. */ 87 #define TC_CGEN_MAX_RELAX(insn, len) ((len) + 4) 88 89 extern void mep_prepare_relax_scan (fragS *, offsetT *, relax_substateT); 90 #define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \ 91 mep_prepare_relax_scan (FRAGP, &AIM, STATE) 92 93 /* Support for core/vliw mode switching. */ 94 #define CORE 0 95 #define VLIW 1 96 #define MAX_PARALLEL_INSNS 56 /* From email from Toshiba. */ 97 #define VTEXT_SECTION_NAME ".vtext" 98 99 /* Needed to process pending instructions when a label is encountered. */ 100 #define TC_START_LABEL(STR, NUL_CHAR, NEXT_CHAR) \ 101 (NEXT_CHAR == ':' && mep_flush_pending_output ()) 102 103 #define tc_unrecognized_line(c) mep_unrecognized_line (c) 104 extern int mep_unrecognized_line (int); 105 #define md_cleanup mep_cleanup 106 extern void mep_cleanup (void); 107 108 #define md_elf_section_letter mep_elf_section_letter 109 extern bfd_vma mep_elf_section_letter (int, const char **); 110 #define md_elf_section_flags mep_elf_section_flags 111 extern flagword mep_elf_section_flags (flagword, bfd_vma, int); 112 113 #define ELF_TC_SPECIAL_SECTIONS \ 114 { VTEXT_SECTION_NAME, SHT_PROGBITS, SHF_ALLOC|SHF_EXECINSTR|SHF_MEP_VLIW }, 115 116 /* The values of the following enum are for use with parinsnum, which 117 is a variable in md_assemble that keeps track of whether or not the 118 next instruction is expected to be the first or second instrucion in 119 a parallelization group. */ 120 typedef enum exp_par_insn_{FIRST, SECOND} EXP_PAR_INSN; 121
