1/* tc-mep.h -- Header file for tc-mep.c.
2   Copyright (C) 2001-2020 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 3, 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 0
38
39/* Permit temporary numeric labels. */
40#define LOCAL_LABELS_FB 1
41
42/* Do not define DIFF_EXPR_OK - the MeP does not have a 32-bit PC-relative reloc.  */
43
44/* We don't need to handle .word strangely.  */
45#define WORKING_DOT_WORD
46
47/* Values passed to md_apply_fix don't include the symbol value.  */
48#define MD_APPLY_SYM_VALUE(FIX) 0
49
50#define MD_APPLY_FIX
51#define md_apply_fix mep_apply_fix
52extern void mep_apply_fix (struct fix *, valueT *, segT);
53
54/* Call md_pcrel_from_section(), not md_pcrel_from().  */
55#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
56extern long md_pcrel_from_section (struct fix *, segT);
57
58#define tc_frob_file() mep_frob_file ()
59extern void mep_frob_file (void);
60
61#define tc_fix_adjustable(fixP) mep_fix_adjustable (fixP)
62extern bfd_boolean mep_fix_adjustable (struct fix *);
63
64/* After creating a fixup for an instruction operand, we need
65   to check for HI16 relocs and queue them up for later sorting.  */
66#define md_cgen_record_fixup_exp  mep_cgen_record_fixup_exp
67
68/* When relaxing, we need to emit various relocs we otherwise wouldn't.  */
69#define TC_FORCE_RELOCATION(fix) mep_force_relocation (fix)
70extern int mep_force_relocation (struct fix *);
71
72#define tc_gen_reloc gas_cgen_tc_gen_reloc
73
74extern void gas_cgen_md_operand (expressionS *);
75#define md_operand(x) gas_cgen_md_operand (x)
76
77#define md_flush_pending_output() mep_flush_pending_output()
78extern int mep_flush_pending_output(void);
79
80extern const struct relax_type md_relax_table[];
81#define TC_GENERIC_RELAX_TABLE md_relax_table
82
83extern long mep_relax_frag (segT, fragS *, long);
84#define md_relax_frag mep_relax_frag
85
86/* Account for inserting a jmp after the insn.  */
87#define TC_CGEN_MAX_RELAX(insn, len) ((len) + 4)
88
89extern void mep_prepare_relax_scan (fragS *, offsetT *, relax_substateT);
90#define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \
91	mep_prepare_relax_scan (FRAGP, &AIM, STATE)
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(STR, NUL_CHAR, NEXT_CHAR)	\
101  (NEXT_CHAR == ':' && mep_flush_pending_output ())
102
103#define tc_unrecognized_line(c) mep_unrecognized_line (c)
104extern int mep_unrecognized_line (int);
105#define md_cleanup mep_cleanup
106extern void mep_cleanup (void);
107
108#define md_elf_section_letter		mep_elf_section_letter
109extern bfd_vma mep_elf_section_letter (int, const char **);
110#define md_elf_section_flags		mep_elf_section_flags
111extern flagword mep_elf_section_flags  (flagword, bfd_vma, int);
112
113#define ELF_TC_SPECIAL_SECTIONS \
114  { VTEXT_SECTION_NAME, SHT_PROGBITS, SHF_ALLOC|SHF_EXECINSTR|SHF_MEP_VLIW },
115
116/* The values of the following enum are for use with parinsnum, which
117   is a variable in md_assemble that keeps track of whether or not the
118   next instruction is expected to be the first or second instruction in
119   a parallelization group.  */
120typedef enum exp_par_insn_{FIRST, SECOND} EXP_PAR_INSN;
121