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1 | /* tc-mep.h -- Header file for tc-mep.c. |
2 | Copyright (C) 2001, 2002, 2005 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, 51 Franklin Street, Fifth Floor, | |
19 | Boston, MA 02110-1301, USA. */ | |
20 | ||
21 | #define TC_MEP | |
22 | ||
23 | /* Support computed relocations. */ | |
24 | #define OBJ_COMPLEX_RELC | |
25 | ||
26 | /* Support many operands per instruction. */ | |
27 | #define GAS_CGEN_MAX_FIXUPS 10 | |
28 | ||
29 | #define LISTING_HEADER "MEP GAS " | |
30 | ||
31 | /* The target BFD architecture. */ | |
32 | #define TARGET_ARCH bfd_arch_mep | |
33 | ||
34 | #define TARGET_FORMAT (target_big_endian ? "elf32-mep" : "elf32-mep-little") | |
35 | ||
36 | /* This is the default. */ | |
37 | #define TARGET_BYTES_BIG_ENDIAN 1 | |
38 | ||
39 | /* Permit temporary numeric labels. */ | |
40 | #define LOCAL_LABELS_FB 1 | |
41 | ||
42 | /* .-foo gets turned into PC relative relocs. */ | |
43 | #define DIFF_EXPR_OK | |
44 | ||
45 | /* We don't need to handle .word strangely. */ | |
46 | #define WORKING_DOT_WORD | |
47 | ||
48 | /* Values passed to md_apply_fix don't include the symbol value. */ | |
49 | #define MD_APPLY_SYM_VALUE(FIX) 0 | |
50 | ||
51 | #define MD_APPLY_FIX | |
52 | #define md_apply_fix mep_apply_fix | |
53 | extern void mep_apply_fix (struct fix *, valueT *, segT); | |
54 | ||
55 | /* Call md_pcrel_from_section(), not md_pcrel_from(). */ | |
56 | #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC) | |
57 | extern long md_pcrel_from_section (struct fix *, segT); | |
58 | ||
59 | #define tc_frob_file() mep_frob_file () | |
60 | extern void mep_frob_file (void); | |
61 | ||
62 | #define tc_fix_adjustable(fixP) mep_fix_adjustable (fixP) | |
63 | extern bfd_boolean mep_fix_adjustable (struct fix *); | |
64 | ||
65 | /* After creating a fixup for an instruction operand, we need | |
66 | to check for HI16 relocs and queue them up for later sorting. */ | |
67 | #define md_cgen_record_fixup_exp mep_cgen_record_fixup_exp | |
68 | ||
69 | /* When relaxing, we need to emit various relocs we otherwise wouldn't. */ | |
70 | #define TC_FORCE_RELOCATION(fix) mep_force_relocation (fix) | |
71 | extern int mep_force_relocation (struct fix *); | |
72 | ||
73 | #define tc_gen_reloc gas_cgen_tc_gen_reloc | |
74 | ||
75 | extern void gas_cgen_md_operand (expressionS *); | |
76 | #define md_operand(x) gas_cgen_md_operand (x) | |
77 | ||
78 | #define md_flush_pending_output() mep_flush_pending_output() | |
79 | extern int mep_flush_pending_output(void); | |
80 | ||
81 | extern const struct relax_type md_relax_table[]; | |
82 | #define TC_GENERIC_RELAX_TABLE md_relax_table | |
83 | ||
84 | /* Account for inserting a jmp after the insn. */ | |
85 | #define TC_CGEN_MAX_RELAX(insn, len) ((len) + 4) | |
86 | ||
87 | extern void mep_prepare_relax_scan (fragS *, offsetT *, relax_substateT); | |
88 | #define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \ | |
89 | mep_prepare_relax_scan (FRAGP, &AIM, STATE) | |
90 | ||
91 | #define skip_whitespace(str) while (*(str) == ' ') ++(str) | |
92 | ||
93 | /* Support for core/vliw mode switching. */ | |
94 | #define CORE 0 | |
95 | #define VLIW 1 | |
96 | #define MAX_PARALLEL_INSNS 56 /* From email from Toshiba. */ | |
97 | #define VTEXT_SECTION_NAME ".vtext" | |
98 | ||
99 | /* Needed to process pending instructions when a label is encountered. */ | |
100 | #define TC_START_LABEL(ch, ptr) ((ch == ':') && mep_flush_pending_output ()) | |
101 | ||
102 | #define tc_unrecognized_line(c) mep_unrecognized_line (c) | |
103 | extern int mep_unrecognized_line (int); | |
104 | #define md_cleanup mep_cleanup | |
105 | extern void mep_cleanup (void); | |
106 | ||
107 | #define md_elf_section_letter mep_elf_section_letter | |
108 | extern int mep_elf_section_letter (int, char **); | |
109 | #define md_elf_section_flags mep_elf_section_flags | |
110 | extern flagword mep_elf_section_flags (flagword, int, int); | |
111 | ||
112 | #define ELF_TC_SPECIAL_SECTIONS \ | |
113 | { VTEXT_SECTION_NAME, SHT_PROGBITS, SHF_ALLOC|SHF_EXECINSTR|SHF_MEP_VLIW }, | |
114 | ||
115 | /* The values of the following enum are for use with parinsnum, which | |
116 | is a variable in md_assemble that keeps track of whether or not the | |
117 | next instruction is expected to be the first or second instrucion in | |
118 | a parallelization group. */ | |
119 | typedef enum exp_par_insn_{FIRST, SECOND} EXP_PAR_INSN; |