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1 | /* tc-m32r.h -- Header file for tc-m32r.c. |
2 | Copyright (C) 1996, 1997, 1998 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 2, 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, 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #define TC_M32R | |
22 | ||
23 | #ifndef BFD_ASSEMBLER | |
24 | /* leading space so will compile with cc */ | |
25 | #error M32R support requires BFD_ASSEMBLER | |
26 | #endif | |
27 | ||
28 | #define LISTING_HEADER "M32R GAS " | |
29 | ||
30 | /* The target BFD architecture. */ | |
31 | #define TARGET_ARCH bfd_arch_m32r | |
32 | ||
33 | #define TARGET_FORMAT "elf32-m32r" | |
34 | ||
35 | #define TARGET_BYTES_BIG_ENDIAN 1 | |
36 | ||
37 | /* call md_pcrel_from_section, not md_pcrel_from */ | |
38 | long md_pcrel_from_section PARAMS ((struct fix *, segT)); | |
39 | #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC) | |
40 | ||
41 | /* Permit temporary numeric labels. */ | |
42 | #define LOCAL_LABELS_FB 1 | |
43 | ||
44 | #define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */ | |
45 | ||
46 | /* We don't need to handle .word strangely. */ | |
47 | #define WORKING_DOT_WORD | |
48 | ||
49 | /* For 8 vs 16 vs 32 bit branch selection. */ | |
50 | extern const struct relax_type md_relax_table[]; | |
51 | #define TC_GENERIC_RELAX_TABLE md_relax_table | |
52 | #if 0 | |
53 | extern void m32r_prepare_relax_scan (); | |
54 | #define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \ | |
55 | m32r_prepare_relax_scan (fragP, address, aim, this_state, this_type) | |
56 | #else | |
57 | extern long m32r_relax_frag PARAMS ((fragS *, long)); | |
58 | #define md_relax_frag(fragP, stretch) \ | |
59 | m32r_relax_frag (fragP, stretch) | |
60 | #endif | |
61 | /* Account for nop if 32 bit insn falls on odd halfword boundary. */ | |
62 | #define TC_CGEN_MAX_RELAX(insn, len) (6) | |
63 | ||
64 | /* Alignments are used to ensure 32 bit insns live on 32 bit boundaries, so | |
65 | we use a special alignment function to insert the correct nop pattern. */ | |
66 | extern int m32r_do_align PARAMS ((int, const char *, int, int)); | |
67 | #define md_do_align(n, fill, len, max, l) \ | |
68 | if (m32r_do_align (n, fill, len, max)) goto l | |
69 | ||
70 | #define MD_APPLY_FIX3 | |
71 | #define md_apply_fix3 gas_cgen_md_apply_fix3 | |
72 | ||
73 | #define obj_fix_adjustable(fixP) m32r_fix_adjustable(fixP) | |
74 | ||
75 | /* After creating a fixup for an instruction operand, we need to check for | |
76 | HI16 relocs and queue them up for later sorting. */ | |
77 | #define md_cgen_record_fixup_exp m32r_cgen_record_fixup_exp | |
78 | ||
79 | #define TC_HANDLES_FX_DONE | |
80 | ||
81 | #define tc_gen_reloc gas_cgen_tc_gen_reloc | |
82 | ||
83 | #define tc_frob_file() m32r_frob_file () | |
84 | extern void m32r_frob_file PARAMS ((void)); | |
85 | ||
86 | /* When relaxing, we need to emit various relocs we otherwise wouldn't. */ | |
87 | #define TC_FORCE_RELOCATION(fix) m32r_force_relocation (fix) | |
88 | extern int m32r_force_relocation (); | |
89 | ||
90 | /* Ensure insns at labels are aligned to 32 bit boundaries. */ | |
91 | int m32r_fill_insn PARAMS ((int)); | |
92 | #define md_after_pass_hook() m32r_fill_insn (1) | |
93 | #define TC_START_LABEL(ch, ptr) (ch == ':' && m32r_fill_insn (0)) | |
94 | ||
95 | /* Add extra M32R sections. */ | |
96 | #define ELF_TC_SPECIAL_SECTIONS \ | |
97 | { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, \ | |
98 | { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
99 | ||
100 | #define md_cleanup m32r_elf_section_change_hook | |
101 | #define md_elf_section_change_hook m32r_elf_section_change_hook | |
102 | extern void m32r_elf_section_change_hook (); |