1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* tc-loongarch.h -- Header file for tc-loongarch.c.
Copyright (C) 2021-2023 Free Software Foundation, Inc.
Contributed by Loongson Ltd.
This file is part of GAS.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the license, or
(at your option) any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#ifndef TC_LOONGARCH
#define TC_LOONGARCH
#include "opcode/loongarch.h"
#define TARGET_BYTES_BIG_ENDIAN 0
#define TARGET_ARCH bfd_arch_loongarch
#define TARGET_MACH (loongarch_mach ())
extern unsigned long loongarch_mach (void);
#define WORKING_DOT_WORD 1
#define REPEAT_CONS_EXPRESSIONS
/* Early than md_begin. */
#define md_after_parse_args loongarch_after_parse_args
extern void loongarch_after_parse_args (void);
extern void loongarch_pop_insert (void);
#define md_pop_insert() loongarch_pop_insert ()
#define TARGET_FORMAT loongarch_target_format ()
extern const char *loongarch_target_format (void);
#define md_relax_frag(segment, fragp, stretch) \
loongarch_relax_frag (segment, fragp, stretch)
extern int loongarch_relax_frag (asection *, struct frag *, long);
#define md_section_align(seg, size) (size)
#define md_undefined_symbol(name) (0)
#define md_operand(x)
extern bool loongarch_frag_align_code (int, int);
#define md_do_align(N, FILL, LEN, MAX, LABEL) \
if ((N) != 0 && !(FILL) && !need_pass_2 && subseg_text_p (now_seg)) \
{ \
if (loongarch_frag_align_code (N, MAX)) \
goto LABEL; \
}
/* The following two macros let the linker resolve all the relocs
due to relaxation.
This is called to see whether a reloc against a defined symbol
should be converted into a reloc against a section.
If relax and norelax have different value may cause ld ".eh_frame_hdr
refers to overlapping FDEs" error when link relax .o and norelax .o. */
#define tc_fix_adjustable(fixp) 0
/* Tne difference between same-section symbols may be affected by linker
relaxation, so do not resolve such expressions in the assembler. */
#define md_allow_local_subtract(l,r,s) 0
/* If subsy of BFD_RELOC32/64 and PC in same segment, and without relax
or PC at start of subsy or with relax but sub_symbol_segment not in
SEC_CODE, we generate 32/64_PCREL. */
#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
(!(LARCH_opts.thin_add_sub \
&& (BFD_RELOC_32 || BFD_RELOC_64) \
&& (!LARCH_opts.relax \
|| S_GET_VALUE (FIX->fx_subsy) \
== FIX->fx_frag->fr_address + FIX->fx_where \
|| (LARCH_opts.relax \
&& ((S_GET_SEGMENT (FIX->fx_subsy)->flags & SEC_CODE) == 0)))))
#define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
#define DIFF_EXPR_OK 1
/* Postpone text-section label subtraction calculation until linking, since
linker relaxations might change the deltas. */
#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
(LARCH_opts.relax ? \
(GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEC) \
|| ((SEC)->flags & SEC_CODE) != 0 \
|| ((SEC)->flags & SEC_DEBUGGING) != 0 \
|| TC_FORCE_RELOCATION (FIX)) \
: (GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEC))) \
#define TC_LINKRELAX_FIXUP(seg) ((seg->flags & SEC_CODE) \
|| (seg->flags & SEC_DEBUGGING))
#define TC_FORCE_RELOCATION_LOCAL(FIX) 1
/* Adjust debug_line after relaxation. */
#define DWARF2_USE_FIXED_ADVANCE_PC 1
/* Values passed to md_apply_fix don't include symbol values. */
#define MD_APPLY_SYM_VALUE(FIX) 0
#define TARGET_USE_CFIPOP 1
#define DWARF2_DEFAULT_RETURN_COLUMN 1 /* $ra. */
#define DWARF2_CIE_DATA_ALIGNMENT -4
#define tc_cfi_frame_initial_instructions \
loongarch_cfi_frame_initial_instructions
extern void loongarch_cfi_frame_initial_instructions (void);
#define tc_symbol_new_hook(sym) \
if (0 == strcmp (sym->bsym->name, FAKE_LABEL_NAME)) \
S_SET_OTHER (sym, STV_HIDDEN);
#define tc_parse_to_dw2regnum tc_loongarch_parse_to_dw2regnum
extern void tc_loongarch_parse_to_dw2regnum (expressionS *);
extern void loongarch_pre_output_hook (void);
#define md_pre_output_hook loongarch_pre_output_hook ()
#define GAS_SORT_RELOCS 1
#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
#define HANDLE_ALIGN(fragp) loongarch_handle_align (fragp)
extern void loongarch_handle_align (struct frag *);
#define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4)
#define elf_tc_final_processing loongarch_elf_final_processing
extern void loongarch_elf_final_processing (void);
#define MAX_RELOC_NUMBER_A_INSN 20
struct reloc_info
{
bfd_reloc_code_real_type type;
expressionS value;
};
#define md_finish loongarch_md_finish
extern void loongarch_md_finish (void);
#endif
|
