1 /* tc-mips.h -- header file for tc-mips.c.
2 Copyright 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007 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.
8 This file is part of GAS.
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)
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.
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, 51 Franklin Street - Fifth Floor, Boston, MA
31 /* Default to big endian. */
32 #ifndef TARGET_BYTES_BIG_ENDIAN
33 #define TARGET_BYTES_BIG_ENDIAN 1
36 #define TARGET_ARCH bfd_arch_mips
38 #define WORKING_DOT_WORD 1
39 #define OLD_FLOAT_READS
40 #define REPEAT_CONS_EXPRESSIONS
41 #define RELOC_EXPANSION_POSSIBLE
42 #define MAX_RELOC_EXPANSION 3
43 #define LOCAL_LABELS_FB 1
45 /* Maximum symbol offset that can be encoded in a BFD_RELOC_GPREL16
47 #define MAX_GPREL_OFFSET (0x7FF0)
49 #define md_relax_frag(segment, fragp, stretch) \
50 mips_relax_frag(segment, fragp, stretch)
51 extern int mips_relax_frag (asection
*, struct frag
*, long);
53 #define md_undefined_symbol(name) (0)
56 extern char mips_nop_opcode (void);
57 #define NOP_OPCODE (mips_nop_opcode ())
59 extern void mips_handle_align (struct frag
*);
60 #define HANDLE_ALIGN(fragp) mips_handle_align (fragp)
62 #define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2)
64 struct insn_label_list
;
65 struct mips_segment_info
{
66 struct insn_label_list
*labels
;
67 unsigned int mips16
: 1;
69 #define TC_SEGMENT_INFO_TYPE struct mips_segment_info
71 /* This field is nonzero if the symbol is the target of a MIPS16 jump. */
72 #define TC_SYMFIELD_TYPE int
74 /* Tell assembler that we have an itbl_mips.h header file to include. */
77 /* The endianness of the target format may change based on command
79 #define TARGET_FORMAT mips_target_format()
80 extern const char *mips_target_format (void);
86 /* Do not generate PIC code. */
89 /* Generate PIC code as in the SVR4 MIPS ABI. */
92 /* VxWorks's PIC model. */
96 extern enum mips_pic_level mips_pic
;
98 extern int tc_get_register (int frame
);
100 #define md_after_parse_args() mips_after_parse_args()
101 extern void mips_after_parse_args (void);
103 #define tc_init_after_args() mips_init_after_args()
104 extern void mips_init_after_args (void);
106 #define md_parse_long_option(arg) mips_parse_long_option (arg)
107 extern int mips_parse_long_option (const char *);
109 #define tc_frob_label(sym) mips_define_label (sym)
110 extern void mips_define_label (symbolS
*);
112 #define tc_frob_file_before_adjust() mips_frob_file_before_adjust ()
113 extern void mips_frob_file_before_adjust (void);
115 #define tc_frob_file_before_fix() mips_frob_file ()
116 extern void mips_frob_file (void);
118 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
119 #define tc_frob_file_after_relocs mips_frob_file_after_relocs
120 extern void mips_frob_file_after_relocs (void);
123 #define tc_fix_adjustable(fixp) mips_fix_adjustable (fixp)
124 extern int mips_fix_adjustable (struct fix
*);
126 /* Values passed to md_apply_fix don't include symbol values. */
127 #define MD_APPLY_SYM_VALUE(FIX) 0
129 /* Global syms must not be resolved, to support ELF shared libraries. */
130 #define EXTERN_FORCE_RELOC \
131 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
133 /* When generating NEWABI code, we may need to have to keep combined
134 relocations which don't have symbols. */
135 #define TC_FORCE_RELOCATION(FIX) mips_force_relocation (FIX)
136 extern int mips_force_relocation (struct fix
*);
138 #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
139 (! SEG_NORMAL (SEG) || mips_force_relocation (FIX))
141 /* Register mask variables. These are set by the MIPS assembly code
142 and used by ECOFF and possibly other object file formats. */
143 extern unsigned long mips_gprmask
;
144 extern unsigned long mips_cprmask
[4];
146 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
148 #define elf_tc_final_processing mips_elf_final_processing
149 extern void mips_elf_final_processing (void);
153 extern void md_mips_end (void);
154 #define md_end() md_mips_end()
156 extern void mips_pop_insert (void);
157 #define md_pop_insert() mips_pop_insert()
159 extern void mips_emit_delays (void);
160 #define md_flush_pending_output mips_emit_delays
162 extern void mips_enable_auto_align (void);
163 #define md_elf_section_change_hook() mips_enable_auto_align()
166 extern enum dwarf2_format
mips_dwarf2_format (void);
167 #define DWARF2_FORMAT() mips_dwarf2_format ()
169 extern int mips_dwarf2_addr_size (void);
170 #define DWARF2_ADDR_SIZE(bfd) mips_dwarf2_addr_size ()
172 #define TARGET_USE_CFIPOP 1
174 #define tc_cfi_frame_initial_instructions mips_cfi_frame_initial_instructions
175 extern void mips_cfi_frame_initial_instructions (void);
177 #define tc_regname_to_dw2regnum tc_mips_regname_to_dw2regnum
178 extern int tc_mips_regname_to_dw2regnum (char *regname
);
180 #define DWARF2_DEFAULT_RETURN_COLUMN 31
181 #define DWARF2_CIE_DATA_ALIGNMENT (-4)
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