1 /* tc-riscv.h -- header file for tc-riscv.c.
2 Copyright (C) 2011-2018 Free Software Foundation, Inc.
4 Contributed by Andrew Waterman (andrew@sifive.com).
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 this program; see the file COPYING3. If not,
21 see <http://www.gnu.org/licenses/>. */
26 #include "opcode/riscv.h"
31 #define TARGET_BYTES_BIG_ENDIAN 0
33 #define TARGET_ARCH bfd_arch_riscv
35 #define WORKING_DOT_WORD 1
36 #define LOCAL_LABELS_FB 1
38 /* Symbols named FAKE_LABEL_NAME are emitted when generating DWARF, so make
39 sure FAKE_LABEL_NAME is printable. It still must be distinct from any
40 real label name. So, append a space, which other labels can't contain. */
41 #define FAKE_LABEL_NAME ".L0 "
42 /* Changing the special character in FAKE_LABEL_NAME requires changing
43 FAKE_LABEL_CHAR too. */
44 #define FAKE_LABEL_CHAR ' '
46 #define md_relax_frag(segment, fragp, stretch) \
47 riscv_relax_frag (segment, fragp, stretch)
48 extern int riscv_relax_frag (asection
*, struct frag
*, long);
50 #define md_section_align(seg,size) (size)
51 #define md_undefined_symbol(name) (0)
54 extern bfd_boolean
riscv_frag_align_code (int);
55 #define md_do_align(N, FILL, LEN, MAX, LABEL) \
56 if ((N) != 0 && !(FILL) && !need_pass_2 && subseg_text_p (now_seg)) \
58 if (riscv_frag_align_code (N)) \
62 extern void riscv_handle_align (fragS
*);
63 #define HANDLE_ALIGN riscv_handle_align
65 #define MAX_MEM_FOR_RS_ALIGN_CODE 7
67 /* The ISA of the target may change based on command-line arguments. */
68 #define TARGET_FORMAT riscv_target_format()
69 extern const char * riscv_target_format (void);
71 #define md_after_parse_args() riscv_after_parse_args()
72 extern void riscv_after_parse_args (void);
74 #define md_parse_long_option(arg) riscv_parse_long_option (arg)
75 extern int riscv_parse_long_option (const char *);
77 #define md_pre_output_hook riscv_pre_output_hook()
78 extern void riscv_pre_output_hook (void);
80 /* Let the linker resolve all the relocs due to relaxation. */
81 #define tc_fix_adjustable(fixp) 0
82 #define md_allow_local_subtract(l,r,s) 0
84 /* Values passed to md_apply_fix don't include symbol values. */
85 #define MD_APPLY_SYM_VALUE(FIX) 0
87 /* Global syms must not be resolved, to support ELF shared libraries. */
88 #define EXTERN_FORCE_RELOC \
89 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
91 /* Postpone text-section label subtraction calculation until linking, since
92 linker relaxations might change the deltas. */
93 #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
94 (GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEG) \
95 || ((SEG)->flags & SEC_CODE) != 0)
96 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
97 #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
98 #define TC_FORCE_RELOCATION_LOCAL(FIX) 1
99 #define DIFF_EXPR_OK 1
101 extern void riscv_pop_insert (void);
102 #define md_pop_insert() riscv_pop_insert ()
104 #define TARGET_USE_CFIPOP 1
106 #define tc_cfi_frame_initial_instructions riscv_cfi_frame_initial_instructions
107 extern void riscv_cfi_frame_initial_instructions (void);
109 #define tc_regname_to_dw2regnum tc_riscv_regname_to_dw2regnum
110 extern int tc_riscv_regname_to_dw2regnum (char *);
112 #define DWARF2_DEFAULT_RETURN_COLUMN X_RA
114 /* Even on RV64, use 4-byte alignment, as F registers may be only 32 bits. */
115 #define DWARF2_CIE_DATA_ALIGNMENT -4
117 #define elf_tc_final_processing riscv_elf_final_processing
118 extern void riscv_elf_final_processing (void);
120 /* Adjust debug_line after relaxation. */
121 #define DWARF2_USE_FIXED_ADVANCE_PC 1
123 #endif /* TC_RISCV */