1 /* tc-mips.h -- header file for tc-mips.c.
2 Copyright (C) 1993-2016 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
30 /* Default to big endian. */
31 #ifndef TARGET_BYTES_BIG_ENDIAN
32 #define TARGET_BYTES_BIG_ENDIAN 1
35 #define TARGET_ARCH bfd_arch_mips
37 #define WORKING_DOT_WORD 1
38 #define OLD_FLOAT_READS
39 #define REPEAT_CONS_EXPRESSIONS
40 #define RELOC_EXPANSION_POSSIBLE
41 #define MAX_RELOC_EXPANSION 3
42 #define LOCAL_LABELS_FB 1
44 #define TC_ADDRESS_BYTES mips_address_bytes
45 extern int mips_address_bytes (void);
47 /* Maximum symbol offset that can be encoded in a BFD_RELOC_GPREL16
49 #define MAX_GPREL_OFFSET (0x7FF0)
51 #define md_relax_frag(segment, fragp, stretch) \
52 mips_relax_frag(segment, fragp, stretch)
53 extern int mips_relax_frag (asection
*, struct frag
*, long);
55 #define md_undefined_symbol(name) (0)
58 extern char mips_nop_opcode (void);
59 #define NOP_OPCODE (mips_nop_opcode ())
61 extern void mips_handle_align (struct frag
*);
62 #define HANDLE_ALIGN(fragp) mips_handle_align (fragp)
64 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4)
66 struct insn_label_list
;
67 struct mips_segment_info
{
68 struct insn_label_list
*labels
;
69 unsigned int mips16
: 1;
70 unsigned int micromips
: 1;
72 #define TC_SEGMENT_INFO_TYPE struct mips_segment_info
74 /* This field is nonzero if the symbol is the target of a MIPS16 jump. */
75 #define TC_SYMFIELD_TYPE int
77 /* Tell assembler that we have an itbl_mips.h header file to include. */
80 /* The endianness of the target format may change based on command
82 #define TARGET_FORMAT mips_target_format()
83 extern const char *mips_target_format (void);
89 /* Do not generate PIC code. */
92 /* Generate PIC code as in the SVR4 MIPS ABI. */
95 /* VxWorks's PIC model. */
99 extern enum mips_pic_level mips_pic
;
101 extern int tc_get_register (int frame
);
103 #define md_after_parse_args() mips_after_parse_args()
104 extern void mips_after_parse_args (void);
106 #define tc_init_after_args() mips_init_after_args()
107 extern void mips_init_after_args (void);
109 #define md_parse_long_option(arg) mips_parse_long_option (arg)
110 extern int mips_parse_long_option (const char *);
112 #define tc_frob_label(sym) mips_define_label (sym)
113 extern void mips_define_label (symbolS
*);
115 #define tc_new_dot_label(sym) mips_add_dot_label (sym)
116 extern void mips_add_dot_label (symbolS
*);
118 #define tc_frob_file_before_adjust() mips_frob_file_before_adjust ()
119 extern void mips_frob_file_before_adjust (void);
121 #define tc_frob_file_before_fix() mips_frob_file ()
122 extern void mips_frob_file (void);
124 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
125 #define tc_frob_file_after_relocs mips_frob_file_after_relocs
126 extern void mips_frob_file_after_relocs (void);
129 #define tc_fix_adjustable(fixp) mips_fix_adjustable (fixp)
130 extern int mips_fix_adjustable (struct fix
*);
132 /* Values passed to md_apply_fix don't include symbol values. */
133 #define MD_APPLY_SYM_VALUE(FIX) 0
135 /* Global syms must not be resolved, to support ELF shared libraries. */
136 #define EXTERN_FORCE_RELOC \
137 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
139 #define TC_FORCE_RELOCATION(FIX) mips_force_relocation (FIX)
140 extern int mips_force_relocation (struct fix
*);
142 #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
143 (! SEG_NORMAL (SEG) || mips_force_relocation (FIX))
145 /* Register mask variables. These are set by the MIPS assembly code
146 and used by ECOFF and possibly other object file formats. */
147 extern unsigned long mips_gprmask
;
148 extern unsigned long mips_cprmask
[4];
150 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
152 #define elf_tc_final_processing mips_elf_final_processing
153 extern void mips_elf_final_processing (void);
157 extern void md_mips_end (void);
158 #define md_end() md_mips_end()
160 extern void mips_pop_insert (void);
161 #define md_pop_insert() mips_pop_insert()
163 extern void mips_emit_delays (void);
164 #define md_flush_pending_output mips_emit_delays
166 extern void mips_enable_auto_align (void);
167 #define md_elf_section_change_hook() mips_enable_auto_align()
171 extern enum dwarf2_format
mips_dwarf2_format (asection
*);
172 # define DWARF2_FORMAT(SEC) mips_dwarf2_format (SEC)
174 /* Use GAS' defaults. */
177 extern int mips_dwarf2_addr_size (void);
178 #define DWARF2_ADDR_SIZE(bfd) mips_dwarf2_addr_size ()
179 #define DWARF2_FDE_RELOC_SIZE (compact_eh ? 4 : mips_dwarf2_addr_size ())
180 #define DWARF2_FDE_RELOC_ENCODING(enc) \
181 (enc | (compact_eh ? DW_EH_PE_pcrel : 0))
183 #define TARGET_USE_CFIPOP 1
185 #define tc_cfi_frame_initial_instructions mips_cfi_frame_initial_instructions
186 extern void mips_cfi_frame_initial_instructions (void);
188 #define tc_regname_to_dw2regnum tc_mips_regname_to_dw2regnum
189 extern int tc_mips_regname_to_dw2regnum (char *regname
);
191 #define DWARF2_DEFAULT_RETURN_COLUMN 31
192 #define DWARF2_CIE_DATA_ALIGNMENT (-4)
196 #define tc_cfi_reloc_for_encoding mips_cfi_reloc_for_encoding
197 extern bfd_reloc_code_real_type
mips_cfi_reloc_for_encoding (int encoding
);
199 #define tc_compact_eh_opcode_stop 0x5c
200 #define tc_compact_eh_opcode_pad 0x5f
204 /* We define DIFF_EXPR_OK because of R_MIPS_PC32, but we have no
205 64-bit form for n64 CFIs. */
206 #define CFI_DIFF_EXPR_OK 0
208 #define CONVERT_SYMBOLIC_ATTRIBUTE(name) mips_convert_symbolic_attribute (name)
209 extern int mips_convert_symbolic_attribute (const char *);
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