1 /* tc-sparc.h - Macros and type defines for the sparc.
2 Copyright (C) 1989-2018 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
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.
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.
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. */
26 /* This is used to set the default value for `target_big_endian'. */
27 #define TARGET_BYTES_BIG_ENDIAN 1
29 #define LOCAL_LABELS_FB 1
31 #define TARGET_ARCH bfd_arch_sparc
33 extern unsigned long sparc_mach (void);
34 #define TARGET_MACH sparc_mach ()
37 #define ELF_TARGET_FORMAT "elf32-sparc"
38 #define ELF64_TARGET_FORMAT "elf64-sparc-freebsd"
42 #define ELF_TARGET_FORMAT "elf32-sparc-sol2"
43 #define ELF64_TARGET_FORMAT "elf64-sparc-sol2"
46 #ifndef ELF_TARGET_FORMAT
47 #define ELF_TARGET_FORMAT "elf32-sparc"
50 #ifndef ELF64_TARGET_FORMAT
51 #define ELF64_TARGET_FORMAT "elf64-sparc"
54 extern const char *sparc_target_format (void);
55 #define TARGET_FORMAT sparc_target_format ()
57 #define RELOC_EXPANSION_POSSIBLE
58 #define MAX_RELOC_EXPANSION 2
60 /* Make it unconditional and check if -EL is valid after option parsing */
61 #define SPARC_BIENDIAN
63 #define WORKING_DOT_WORD
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)
70 #define LISTING_HEADER "SPARC GAS "
72 extern int sparc_pic_code
;
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);
78 #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
79 extern void sparc_handle_align (struct frag
*);
81 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4)
83 #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
85 /* I know that "call 0" fails in sparc-coff if this doesn't return 1. I
86 don't know about other relocation types, or other formats, yet. */
88 #define TC_FORCE_RELOCATION_ABS(FIX) \
89 ((FIX)->fx_r_type == BFD_RELOC_32_PCREL_S2 \
90 || TC_FORCE_RELOCATION (FIX))
92 #define RELOC_REQUIRES_SYMBOL
96 /* This expression evaluates to true if the relocation is for a local
97 object for which we still want to do the relocation at runtime.
98 False if we are willing to perform this relocation while building
101 #define TC_FORCE_RELOCATION_LOCAL(FIX) \
102 (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
104 && S_IS_EXTERNAL ((FIX)->fx_addsy)))
108 /* Don't turn certain relocs into relocations against sections. This
109 is required for the dynamic linker to operate properly. When
110 generating PIC, we need to keep any non PC relative reloc. The PIC
111 part of this test must be parallel to the code in tc_gen_reloc which
112 converts relocations to GOT relocations. */
113 #define tc_fix_adjustable(FIX) \
114 ((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
115 && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
116 && ((FIX)->fx_r_type < BFD_RELOC_SPARC_TLS_GD_HI22 \
117 || (FIX)->fx_r_type > BFD_RELOC_SPARC_TLS_TPOFF64) \
118 && (! sparc_pic_code \
119 || ((FIX)->fx_r_type != BFD_RELOC_HI22 \
120 && (FIX)->fx_r_type != BFD_RELOC_LO10 \
121 && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \
122 && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \
123 || !generic_force_reloc (FIX)) \
124 && ((FIX)->fx_pcrel \
125 || ((FIX)->fx_subsy != NULL \
126 && (S_GET_SEGMENT ((FIX)->fx_subsy) \
127 == S_GET_SEGMENT ((FIX)->fx_addsy))) \
128 || S_IS_LOCAL ((FIX)->fx_addsy)))))
130 /* Values passed to md_apply_fix don't include the symbol value. */
131 #define MD_APPLY_SYM_VALUE(FIX) 0
133 /* Finish up the entire symtab. */
134 #define tc_adjust_symtab() sparc_adjust_symtab ()
135 extern void sparc_adjust_symtab (void);
137 /* Don't allow the generic code to convert fixups involving the
138 subtraction of a label in the current section to pc-relative if we
139 don't have the necessary pc-relative relocation. */
140 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
141 (!((FIX)->fx_r_type == BFD_RELOC_64 \
142 || (FIX)->fx_r_type == BFD_RELOC_32 \
143 || (FIX)->fx_r_type == BFD_RELOC_16 \
144 || (FIX)->fx_r_type == BFD_RELOC_8))
148 /* When generating PIC code, we must not adjust any reloc which will
149 turn into a reloc against the global offset table, nor any reloc
150 which we will need if a symbol is overridden. */
151 #define tc_fix_adjustable(FIX) \
153 || ((FIX)->fx_pcrel \
154 && ((FIX)->fx_addsy == NULL \
155 || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
156 && ! S_IS_WEAK ((FIX)->fx_addsy)))) \
157 || (FIX)->fx_r_type == BFD_RELOC_16 \
158 || (FIX)->fx_r_type == BFD_RELOC_32)
161 #define elf_tc_final_processing sparc_elf_final_processing
162 extern void sparc_elf_final_processing (void);
164 #define md_operand(x)
166 extern void sparc_md_end (void);
167 #define md_end() sparc_md_end ()
171 #define TC_PARSE_CONS_RETURN_TYPE const char *
172 #define TC_PARSE_CONS_RETURN_NONE NULL
175 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) sparc_cons (EXP, NBYTES)
176 extern const char *sparc_cons (expressionS
*, int);
179 #define TC_CONS_FIX_NEW cons_fix_new_sparc
180 extern void cons_fix_new_sparc
181 (struct frag
*, int, unsigned int, struct expressionS
*, const char *);
183 #define TC_FIX_TYPE valueT
185 #define TC_INIT_FIX_DATA(X) \
188 (X)->tc_fix_data = 0; \
192 #define TC_FIX_DATA_PRINT(FILE, FIX) \
195 fprintf ((FILE), "addend2=%ld\n", \
196 (unsigned long) (FIX)->tc_fix_data); \
200 #define TARGET_USE_CFIPOP 1
202 #define tc_cfi_frame_initial_instructions sparc_cfi_frame_initial_instructions
203 extern void sparc_cfi_frame_initial_instructions (void);
205 #define tc_regname_to_dw2regnum sparc_regname_to_dw2regnum
206 extern int sparc_regname_to_dw2regnum (char *regname
);
208 #define tc_cfi_emit_pcrel_expr sparc_cfi_emit_pcrel_expr
209 extern void sparc_cfi_emit_pcrel_expr (expressionS
*, unsigned int);
211 extern int sparc_cie_data_alignment
;
213 #define DWARF2_LINE_MIN_INSN_LENGTH 4
214 #define DWARF2_DEFAULT_RETURN_COLUMN 15
215 #define DWARF2_CIE_DATA_ALIGNMENT sparc_cie_data_alignment
217 /* cons_fix_new_sparc will chooose BFD_RELOC_SPARC_UA32 for the difference
218 expressions, but there is no corresponding PC-relative relocation; as this
219 is for debugging info though, alignment does not matter, so by disabling
220 this, BFD_RELOC_32_PCREL will be emitted directly instead. */
221 #define CFI_DIFF_EXPR_OK 0
223 /* end of tc-sparc.h */
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