| 1 | /* tc-mips.h -- header file for tc-mips.c. |
| 2 | Copyright 1993, 1994, 1995, 1996, 1997, 2000, 2001 |
| 3 | Free Software Foundation, Inc. |
| 4 | Contributed by the OSF and Ralph Campbell. |
| 5 | Written by Keith Knowles and Ralph Campbell, working independently. |
| 6 | Modified for ECOFF support by Ian Lance Taylor of Cygnus Support. |
| 7 | |
| 8 | This file is part of GAS. |
| 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 2, 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 Free |
| 22 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 23 | 02111-1307, USA. */ |
| 24 | |
| 25 | #ifndef TC_MIPS |
| 26 | |
| 27 | #define TC_MIPS |
| 28 | |
| 29 | #ifdef ANSI_PROTOTYPES |
| 30 | struct frag; |
| 31 | struct expressionS; |
| 32 | #endif |
| 33 | |
| 34 | /* Default to big endian. */ |
| 35 | #ifndef TARGET_BYTES_BIG_ENDIAN |
| 36 | #define TARGET_BYTES_BIG_ENDIAN 1 |
| 37 | #endif |
| 38 | |
| 39 | #define TARGET_ARCH bfd_arch_mips |
| 40 | |
| 41 | #define WORKING_DOT_WORD 1 |
| 42 | #define OLD_FLOAT_READS |
| 43 | #define REPEAT_CONS_EXPRESSIONS |
| 44 | #define RELOC_EXPANSION_POSSIBLE |
| 45 | #define MAX_RELOC_EXPANSION 3 |
| 46 | #define LOCAL_LABELS_FB 1 |
| 47 | |
| 48 | /* Maximum symbol offset that can be encoded in a BFD_RELOC_MIPS_GPREL |
| 49 | relocation: */ |
| 50 | #define MAX_GPREL_OFFSET (0x7FF4) |
| 51 | |
| 52 | #define md_relax_frag(segment, fragp, stretch) mips_relax_frag(fragp, stretch) |
| 53 | extern int mips_relax_frag PARAMS ((struct frag *, long)); |
| 54 | |
| 55 | #define md_undefined_symbol(name) (0) |
| 56 | #define md_operand(x) |
| 57 | |
| 58 | extern void mips_handle_align PARAMS ((struct frag *)); |
| 59 | #define HANDLE_ALIGN(fragp) mips_handle_align (fragp) |
| 60 | |
| 61 | #define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2) |
| 62 | |
| 63 | /* We permit PC relative difference expressions when generating |
| 64 | embedded PIC code. */ |
| 65 | #define DIFF_EXPR_OK |
| 66 | |
| 67 | /* Tell assembler that we have an itbl_mips.h header file to include. */ |
| 68 | #define HAVE_ITBL_CPU |
| 69 | |
| 70 | /* The endianness of the target format may change based on command |
| 71 | line arguments. */ |
| 72 | #define TARGET_FORMAT mips_target_format() |
| 73 | extern const char *mips_target_format PARAMS ((void)); |
| 74 | |
| 75 | struct mips_cl_insn |
| 76 | { |
| 77 | unsigned long insn_opcode; |
| 78 | const struct mips_opcode *insn_mo; |
| 79 | /* The next two fields are used when generating mips16 code. */ |
| 80 | boolean use_extend; |
| 81 | unsigned short extend; |
| 82 | }; |
| 83 | |
| 84 | extern int tc_get_register PARAMS ((int frame)); |
| 85 | |
| 86 | #define tc_init_after_args() mips_init_after_args() |
| 87 | extern void mips_init_after_args PARAMS ((void)); |
| 88 | |
| 89 | #define md_parse_long_option(arg) mips_parse_long_option (arg) |
| 90 | extern int mips_parse_long_option PARAMS ((const char *)); |
| 91 | |
| 92 | #define tc_frob_label(sym) mips_define_label (sym) |
| 93 | extern void mips_define_label PARAMS ((symbolS *)); |
| 94 | |
| 95 | #define tc_frob_file_before_adjust() mips_frob_file_before_adjust () |
| 96 | extern void mips_frob_file_before_adjust PARAMS ((void)); |
| 97 | |
| 98 | #define tc_frob_file() mips_frob_file () |
| 99 | extern void mips_frob_file PARAMS ((void)); |
| 100 | |
| 101 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
| 102 | #define tc_frob_file_after_relocs mips_frob_file_after_relocs |
| 103 | extern void mips_frob_file_after_relocs PARAMS ((void)); |
| 104 | #endif |
| 105 | |
| 106 | #define TC_CONS_FIX_NEW cons_fix_new_mips |
| 107 | extern void cons_fix_new_mips |
| 108 | PARAMS ((struct frag *, int, unsigned int, struct expressionS *)); |
| 109 | |
| 110 | #define tc_fix_adjustable(fixp) mips_fix_adjustable (fixp) |
| 111 | extern int mips_fix_adjustable PARAMS ((struct fix *)); |
| 112 | |
| 113 | /* When generating embedded PIC code we must keep PC relative |
| 114 | relocations. */ |
| 115 | #define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp) |
| 116 | extern int mips_force_relocation PARAMS ((struct fix *)); |
| 117 | |
| 118 | /* md_apply_fix sets fx_done correctly. */ |
| 119 | #define TC_HANDLE_FX_DONE 1 |
| 120 | |
| 121 | /* Register mask variables. These are set by the MIPS assembly code |
| 122 | and used by ECOFF and possibly other object file formats. */ |
| 123 | extern unsigned long mips_gprmask; |
| 124 | extern unsigned long mips_cprmask[4]; |
| 125 | |
| 126 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
| 127 | |
| 128 | #define elf_tc_final_processing mips_elf_final_processing |
| 129 | extern void mips_elf_final_processing PARAMS ((void)); |
| 130 | |
| 131 | #define ELF_TC_SPECIAL_SECTIONS \ |
| 132 | { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ |
| 133 | { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ |
| 134 | { ".lit4", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ |
| 135 | { ".lit8", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ |
| 136 | { ".ucode", SHT_MIPS_UCODE, 0 }, \ |
| 137 | { ".mdebug", SHT_MIPS_DEBUG, 0 }, |
| 138 | /* Other special sections not generated by the assembler: .reginfo, |
| 139 | .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn. */ |
| 140 | |
| 141 | #endif |
| 142 | |
| 143 | extern void md_mips_end PARAMS ((void)); |
| 144 | #define md_end() md_mips_end() |
| 145 | |
| 146 | #define USE_GLOBAL_POINTER_OPT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \ |
| 147 | || OUTPUT_FLAVOR == bfd_target_coff_flavour \ |
| 148 | || OUTPUT_FLAVOR == bfd_target_elf_flavour) |
| 149 | |
| 150 | extern void mips_pop_insert PARAMS ((void)); |
| 151 | #define md_pop_insert() mips_pop_insert() |
| 152 | |
| 153 | extern void mips_flush_pending_output PARAMS ((void)); |
| 154 | #define md_flush_pending_output mips_flush_pending_output |
| 155 | |
| 156 | extern void mips_enable_auto_align PARAMS ((void)); |
| 157 | #define md_elf_section_change_hook() mips_enable_auto_align() |
| 158 | |
| 159 | #endif /* TC_MIPS */ |