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1 | /* tc-riscv.h -- header file for tc-riscv.c. |
2 | Copyright 2011-2016 Free Software Foundation, Inc. | |
3 | ||
4 | Contributed by Andrew Waterman (andrew@sifive.com). | |
5 | Based on MIPS target. | |
6 | ||
7 | This file is part of GAS. | |
8 | ||
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) | |
12 | any later version. | |
13 | ||
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. | |
18 | ||
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/>. */ | |
22 | ||
23 | #ifndef TC_RISCV | |
24 | #define TC_RISCV | |
25 | ||
26 | #include "opcode/riscv.h" | |
27 | ||
28 | struct frag; | |
29 | struct expressionS; | |
30 | ||
31 | #define TARGET_BYTES_BIG_ENDIAN 0 | |
32 | ||
33 | #define TARGET_ARCH bfd_arch_riscv | |
34 | ||
35 | #define WORKING_DOT_WORD 1 | |
36 | #define LOCAL_LABELS_FB 1 | |
37 | ||
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 | ||
43 | #define md_relax_frag(segment, fragp, stretch) \ | |
44 | riscv_relax_frag (segment, fragp, stretch) | |
45 | extern int riscv_relax_frag (asection *, struct frag *, long); | |
46 | ||
47 | #define md_section_align(seg,size) (size) | |
48 | #define md_undefined_symbol(name) (0) | |
49 | #define md_operand(x) | |
50 | ||
51 | /* FIXME: it is unclear if this is used, or if it is even correct. */ | |
52 | #define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2) | |
53 | ||
54 | /* The ISA of the target may change based on command-line arguments. */ | |
55 | #define TARGET_FORMAT riscv_target_format() | |
56 | extern const char * riscv_target_format (void); | |
57 | ||
58 | #define md_after_parse_args() riscv_after_parse_args() | |
59 | extern void riscv_after_parse_args (void); | |
60 | ||
61 | #define md_parse_long_option(arg) riscv_parse_long_option (arg) | |
62 | extern int riscv_parse_long_option (const char *); | |
63 | ||
64 | /* Let the linker resolve all the relocs due to relaxation. */ | |
65 | #define tc_fix_adjustable(fixp) 0 | |
66 | #define md_allow_local_subtract(l,r,s) 0 | |
67 | ||
68 | /* Values passed to md_apply_fix don't include symbol values. */ | |
69 | #define MD_APPLY_SYM_VALUE(FIX) 0 | |
70 | ||
71 | /* Global syms must not be resolved, to support ELF shared libraries. */ | |
72 | #define EXTERN_FORCE_RELOC \ | |
73 | (OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
74 | ||
75 | /* Postpone text-section label subtraction calculation until linking, since | |
76 | linker relaxations might change the deltas. */ | |
77 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) ((SEG)->flags & SEC_CODE) | |
78 | #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1 | |
79 | #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1 | |
80 | #define TC_FORCE_RELOCATION_LOCAL(FIX) 1 | |
81 | #define DIFF_EXPR_OK 1 | |
82 | ||
83 | extern void riscv_pop_insert (void); | |
84 | #define md_pop_insert() riscv_pop_insert () | |
85 | ||
86 | #define TARGET_USE_CFIPOP 1 | |
87 | ||
88 | #define tc_cfi_frame_initial_instructions riscv_cfi_frame_initial_instructions | |
89 | extern void riscv_cfi_frame_initial_instructions (void); | |
90 | ||
91 | #define tc_regname_to_dw2regnum tc_riscv_regname_to_dw2regnum | |
92 | extern int tc_riscv_regname_to_dw2regnum (char *); | |
93 | ||
94 | extern unsigned xlen; | |
95 | #define DWARF2_DEFAULT_RETURN_COLUMN X_RA | |
96 | #define DWARF2_CIE_DATA_ALIGNMENT (-(int) (xlen / 8)) | |
97 | ||
98 | #define elf_tc_final_processing riscv_elf_final_processing | |
99 | extern void riscv_elf_final_processing (void); | |
100 | ||
101 | #endif /* TC_RISCV */ |