1 /* tc-sparc.h - Macros and type defines for the sparc.
2 Copyright (C) 1989-2023 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
8 published by the Free Software Foundation; either version 3,
9 or (at your option) any later version.
10
11 GAS is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 the GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public
17 License along with GAS; see the file COPYING. If not, write
18 to the Free Software Foundation, 51 Franklin Street - Fifth Floor,
19 Boston, MA 02110-1301, USA. */
20
21 #ifndef TC_SPARC
22 #define TC_SPARC 1
23
24 struct frag;
25
26 /* This is used to set the default value for `target_big_endian'. */
27 #define TARGET_BYTES_BIG_ENDIAN 1
28
29 #define LOCAL_LABELS_FB 1
30
31 #define TARGET_ARCH bfd_arch_sparc
32
33 extern unsigned long sparc_mach (void);
34 #define TARGET_MACH sparc_mach ()
35
36 #ifdef TE_FreeBSD
37 #define ELF_TARGET_FORMAT "elf32-sparc"
38 #define ELF64_TARGET_FORMAT "elf64-sparc-freebsd"
39 #endif
40
41 #ifdef TE_SOLARIS
42 #define ELF_TARGET_FORMAT "elf32-sparc-sol2"
43 #define ELF64_TARGET_FORMAT "elf64-sparc-sol2"
44 #endif
45
46 #ifndef ELF_TARGET_FORMAT
47 #define ELF_TARGET_FORMAT "elf32-sparc"
48 #endif
49
50 #ifndef ELF64_TARGET_FORMAT
51 #define ELF64_TARGET_FORMAT "elf64-sparc"
52 #endif
53
54 extern const char *sparc_target_format (void);
55 #define TARGET_FORMAT sparc_target_format ()
56
57 #define RELOC_EXPANSION_POSSIBLE
58 #define MAX_RELOC_EXPANSION 2
59
60 /* Make it unconditional and check if -EL is valid after option parsing */
61 #define SPARC_BIENDIAN
62
63 #define WORKING_DOT_WORD
64
65 #define md_convert_frag(b,s,f) \
66 as_fatal (_("sparc convert_frag\n"))
67 #define md_estimate_size_before_relax(f,s) \
68 (as_fatal (_("estimate_size_before_relax called")), 1)
69
70 #define LISTING_HEADER "SPARC GAS "
71
72 extern int sparc_pic_code;
73
74 /* We require .word, et. al., to be aligned correctly. */
75 #define md_cons_align(nbytes) sparc_cons_align (nbytes)
76 extern void sparc_cons_align (int);
77
78 #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
79 extern void sparc_handle_align (struct frag *);
80
81 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4)
82
83 #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
84
85 /* Don't turn certain relocs into relocations against sections. This
86 is required for the dynamic linker to operate properly. When
87 generating PIC, we need to keep any non PC relative reloc. The PIC
88 part of this test must be parallel to the code in tc_gen_reloc which
89 converts relocations to GOT relocations. */
90 #define tc_fix_adjustable(FIX) \
91 ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
92 && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
93 && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22 \
94 || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64) \
95 && (! sparc_pic_code \
96 || ((FIX)->fx_r_type != BFD_RELOC_HI22 \
97 && (FIX)->fx_r_type != BFD_RELOC_LO10 \
98 && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \
99 && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \
100 || !generic_force_reloc (FIX)) \
101 && ((FIX)->fx_pcrel \
102 || ((FIX)->fx_subsy != NULL \
103 && (S_GET_SEGMENT ((FIX)->fx_subsy) \
104 == S_GET_SEGMENT ((FIX)->fx_addsy))) \
105 || S_IS_LOCAL ((FIX)->fx_addsy)))))
106
107 /* Values passed to md_apply_fix don't include the symbol value. */
108 #define MD_APPLY_SYM_VALUE(FIX) 0
109
110 /* Finish up the entire symtab. */
111 #define tc_adjust_symtab() sparc_adjust_symtab ()
112 extern void sparc_adjust_symtab (void);
113
114 /* Don't allow the generic code to convert fixups involving the
115 subtraction of a label in the current section to pc-relative if we
116 don't have the necessary pc-relative relocation. */
117 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
118 (!((FIX)->fx_r_type == BFD_RELOC_64 \
119 || (FIX)->fx_r_type == BFD_RELOC_32 \
120 || (FIX)->fx_r_type == BFD_RELOC_16 \
121 || (FIX)->fx_r_type == BFD_RELOC_8))
122
123 #define elf_tc_final_processing sparc_elf_final_processing
124 extern void sparc_elf_final_processing (void);
125
126 #define md_operand(x)
127
128 extern void sparc_md_finish (void);
129 #define md_finish() sparc_md_finish ()
130
131 #define TC_PARSE_CONS_RETURN_TYPE const char *
132 #define TC_PARSE_CONS_RETURN_NONE NULL
133
134 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES)
135 extern const char *sparc_cons (expressionS *, int);
136
137 #define TC_CONS_FIX_NEW cons_fix_new_sparc
138 extern void cons_fix_new_sparc
139 (struct frag *, int, unsigned int, struct expressionS *, const char *);
140
141 #define TC_FIX_TYPE valueT
142
143 #define TC_INIT_FIX_DATA(X) \
144 do \
145 { \
146 (X)->tc_fix_data = 0; \
147 } \
148 while (0)
149
150 #define TC_FIX_DATA_PRINT(FILE, FIX) \
151 do \
152 { \
153 fprintf ((FILE), "addend2=%ld\n", \
154 (unsigned long) (FIX)->tc_fix_data); \
155 } \
156 while (0)
157
158 #define TARGET_USE_CFIPOP 1
159
160 #define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions
161 extern void sparc_cfi_frame_initial_instructions (void);
162
163 #define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum
164 extern int sparc_regname_to_dw2regnum (char *regname);
165
166 #define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr
167 extern void sparc_cfi_emit_pcrel_expr (expressionS *, unsigned int);
168
169 extern int sparc_cie_data_alignment;
170
171 #define DWARF2_LINE_MIN_INSN_LENGTH 4
172 #define DWARF2_DEFAULT_RETURN_COLUMN 15
173 #define DWARF2_CIE_DATA_ALIGNMENT sparc_cie_data_alignment
174
175 /* cons_fix_new_sparc will chooose BFD_RELOC_SPARC_UA32 for the difference
176 expressions, but there is no corresponding PC-relative relocation; as this
177 is for debugging info though, alignment does not matter, so by disabling
178 this, BFD_RELOC_32_PCREL will be emitted directly instead. */
179 #define CFI_DIFF_EXPR_OK 0
180
181 #endif