1 /* tc-mips.h -- header file for tc-mips.c.
2 Copyright (C) 1993, 94, 95, 96, 97, 1999, 2000 Free Software Foundation, Inc.
3 Contributed by the OSF and Ralph Campbell.
4 Written by Keith Knowles and Ralph Campbell, working independently.
5 Modified for ECOFF support by Ian Lance Taylor of Cygnus Support.
7 This file is part of GAS.
9 GAS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GAS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GAS; see the file COPYING. If not, write to the Free
21 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
28 #ifdef ANSI_PROTOTYPES
33 /* Default to big endian. */
34 #ifndef TARGET_BYTES_BIG_ENDIAN
35 #define TARGET_BYTES_BIG_ENDIAN 1
38 #define TARGET_ARCH bfd_arch_mips
40 #define WORKING_DOT_WORD 1
41 #define OLD_FLOAT_READS
42 #define REPEAT_CONS_EXPRESSIONS
43 #define RELOC_EXPANSION_POSSIBLE
44 #define MAX_RELOC_EXPANSION 3
45 #define LOCAL_LABELS_FB 1
47 /* Maximum symbol offset that can be encoded in a BFD_RELOC_MIPS_GPREL
49 #define MAX_GPREL_OFFSET (0x7FF4)
51 #define md_relax_frag(fragp, stretch) mips_relax_frag(fragp, stretch)
52 extern int mips_relax_frag PARAMS ((struct frag *, long));
54 #define md_undefined_symbol(name) (0)
57 extern int mips_do_align PARAMS ((int, const char *, int, int));
58 #define md_do_align(n,fill,len,max,l) if (mips_do_align (n,fill,len,max)) goto l
60 /* We permit PC relative difference expressions when generating
64 /* Tell assembler that we have an itbl_mips.h header file to include. */
67 /* The endianness of the target format may change based on command
69 #define TARGET_FORMAT mips_target_format()
70 extern const char *mips_target_format PARAMS ((void));
74 unsigned long insn_opcode;
75 const struct mips_opcode *insn_mo;
76 /* The next two fields are used when generating mips16 code. */
78 unsigned short extend;
81 extern int tc_get_register PARAMS ((int frame));
83 #define tc_init_after_args() mips_init_after_args()
84 extern void mips_init_after_args PARAMS ((void));
86 #define md_parse_long_option(arg) mips_parse_long_option (arg)
87 extern int mips_parse_long_option PARAMS ((const char *));
89 #define tc_frob_label(sym) mips_define_label (sym)
90 extern void mips_define_label PARAMS ((symbolS *));
92 #define tc_frob_file_before_adjust() mips_frob_file_before_adjust ()
93 extern void mips_frob_file_before_adjust PARAMS ((void));
95 #define tc_frob_file() mips_frob_file ()
96 extern void mips_frob_file PARAMS ((void));
98 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
99 #define tc_frob_file_after_relocs mips_frob_file_after_relocs
100 extern void mips_frob_file_after_relocs PARAMS ((void));
103 #define TC_CONS_FIX_NEW cons_fix_new_mips
104 extern void cons_fix_new_mips
105 PARAMS ((struct frag *, int, unsigned int, struct expressionS *));
107 #define tc_fix_adjustable(fixp) mips_fix_adjustable (fixp)
108 extern int mips_fix_adjustable PARAMS ((struct fix *));
110 /* When generating embedded PIC code we must keep PC relative
112 #define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp)
113 extern int mips_force_relocation PARAMS ((struct fix *));
115 /* md_apply_fix sets fx_done correctly. */
116 #define TC_HANDLE_FX_DONE 1
118 /* Register mask variables. These are set by the MIPS assembly code
119 and used by ECOFF and possibly other object file formats. */
120 extern unsigned long mips_gprmask;
121 extern unsigned long mips_cprmask[4];
123 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
125 #define elf_tc_final_processing mips_elf_final_processing
126 extern void mips_elf_final_processing PARAMS ((void));
128 #define ELF_TC_SPECIAL_SECTIONS \
129 { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
130 { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
131 { ".lit4", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
132 { ".lit8", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
133 { ".ucode", SHT_MIPS_UCODE, 0 }, \
134 { ".mdebug", SHT_MIPS_DEBUG, 0 },
135 /* Other special sections not generated by the assembler: .reginfo,
136 .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn. */
140 extern void md_mips_end PARAMS ((void));
141 #define md_end() md_mips_end()
143 #define USE_GLOBAL_POINTER_OPT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
144 || OUTPUT_FLAVOR == bfd_target_coff_flavour \
145 || OUTPUT_FLAVOR == bfd_target_elf_flavour)
147 extern void mips_pop_insert PARAMS ((void));
148 #define md_pop_insert() mips_pop_insert()
150 extern void mips_flush_pending_output PARAMS ((void));
151 #define md_flush_pending_output mips_flush_pending_output
153 extern void mips_enable_auto_align PARAMS ((void));
154 #define md_elf_section_change_hook() mips_enable_auto_align()