| 1 | /* tc-riscv.h -- header file for tc-riscv.c. |
| 2 | Copyright (C) 2011-2020 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 RISCV_FAKE_LABEL_NAME |
| 42 | /* Changing the special character in FAKE_LABEL_NAME requires changing |
| 43 | FAKE_LABEL_CHAR too. */ |
| 44 | #define FAKE_LABEL_CHAR RISCV_FAKE_LABEL_CHAR |
| 45 | |
| 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); |
| 49 | |
| 50 | #define md_section_align(seg,size) (size) |
| 51 | #define md_undefined_symbol(name) (0) |
| 52 | #define md_operand(x) |
| 53 | |
| 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)) \ |
| 57 | { \ |
| 58 | if (riscv_frag_align_code (N)) \ |
| 59 | goto LABEL; \ |
| 60 | } |
| 61 | |
| 62 | extern void riscv_handle_align (fragS *); |
| 63 | #define HANDLE_ALIGN riscv_handle_align |
| 64 | |
| 65 | #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4) |
| 66 | |
| 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); |
| 70 | |
| 71 | #define md_after_parse_args() riscv_after_parse_args() |
| 72 | extern void riscv_after_parse_args (void); |
| 73 | |
| 74 | #define md_parse_long_option(arg) riscv_parse_long_option (arg) |
| 75 | extern int riscv_parse_long_option (const char *); |
| 76 | |
| 77 | #define md_pre_output_hook riscv_pre_output_hook() |
| 78 | extern void riscv_pre_output_hook (void); |
| 79 | |
| 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 |
| 83 | |
| 84 | /* Values passed to md_apply_fix don't include symbol values. */ |
| 85 | #define MD_APPLY_SYM_VALUE(FIX) 0 |
| 86 | |
| 87 | /* Global syms must not be resolved, to support ELF shared libraries. */ |
| 88 | #define EXTERN_FORCE_RELOC \ |
| 89 | (OUTPUT_FLAVOR == bfd_target_elf_flavour) |
| 90 | |
| 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 |
| 100 | |
| 101 | extern void riscv_pop_insert (void); |
| 102 | #define md_pop_insert() riscv_pop_insert () |
| 103 | |
| 104 | #define TARGET_USE_CFIPOP 1 |
| 105 | |
| 106 | #define tc_cfi_frame_initial_instructions riscv_cfi_frame_initial_instructions |
| 107 | extern void riscv_cfi_frame_initial_instructions (void); |
| 108 | |
| 109 | #define tc_regname_to_dw2regnum tc_riscv_regname_to_dw2regnum |
| 110 | extern int tc_riscv_regname_to_dw2regnum (char *); |
| 111 | |
| 112 | #define DWARF2_DEFAULT_RETURN_COLUMN X_RA |
| 113 | |
| 114 | /* Even on RV64, use 4-byte alignment, as F registers may be only 32 bits. */ |
| 115 | #define DWARF2_CIE_DATA_ALIGNMENT -4 |
| 116 | |
| 117 | #define elf_tc_final_processing riscv_elf_final_processing |
| 118 | extern void riscv_elf_final_processing (void); |
| 119 | |
| 120 | /* Adjust debug_line after relaxation. */ |
| 121 | #define DWARF2_USE_FIXED_ADVANCE_PC 1 |
| 122 | |
| 123 | #define md_end riscv_md_end |
| 124 | #define CONVERT_SYMBOLIC_ATTRIBUTE riscv_convert_symbolic_attribute |
| 125 | |
| 126 | extern void riscv_md_end (void); |
| 127 | extern int riscv_convert_symbolic_attribute (const char *); |
| 128 | |
| 129 | #endif /* TC_RISCV */ |