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3bcbcc3d | 1 | /* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port. |
08caf3f8 | 2 | Copyright 2000, 2001 Free Software Foundation, Inc. |
3bcbcc3d HPN |
3 | |
4 | Contributed by Axis Communications AB, Lund, Sweden. | |
5 | Originally written for GAS 1.38.1 by Mikael Asker. | |
08caf3f8 | 6 | Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson. |
3bcbcc3d HPN |
7 | |
8 | This file is part of GAS, the GNU Assembler. | |
9 | ||
10 | GAS is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
14 | ||
15 | GAS is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with GAS; see the file COPYING. If not, write to the | |
22 | Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
23 | MA 02111-1307, USA. */ | |
24 | ||
25 | /* See the GAS "internal" document for general documentation on this. | |
26 | It is called internals.texi (internals.info when makeinfo:d), but is | |
27 | not installed or makeinfo:d by "make info". */ | |
28 | ||
29 | /* Functions and variables that aren't declared in tc.h are declared here, | |
30 | with the type/prototype that is used in the local extern-declaration of | |
31 | their usage. */ | |
32 | ||
33 | #ifndef TC_CRIS | |
34 | #define TC_CRIS | |
35 | ||
36 | /* Multi-target support is always on. */ | |
37 | extern const char *cris_target_format PARAMS ((void)); | |
38 | #define TARGET_FORMAT cris_target_format () | |
39 | ||
40 | #define TARGET_ARCH bfd_arch_cris | |
41 | ||
42 | #define TARGET_BYTES_BIG_ENDIAN 0 | |
43 | ||
44 | extern const char *md_shortopts; | |
45 | extern struct option md_longopts[]; | |
46 | extern size_t md_longopts_size; | |
47 | ||
48 | extern const pseudo_typeS md_pseudo_table[]; | |
49 | ||
50 | #define tc_comment_chars cris_comment_chars | |
51 | extern const char cris_comment_chars[]; | |
52 | extern const char line_comment_chars[]; | |
53 | extern const char line_separator_chars[]; | |
54 | extern const char EXP_CHARS[]; | |
55 | extern const char FLT_CHARS[]; | |
56 | ||
57 | /* This should be optional, since it is ignored as an escape (assumed to | |
58 | be itself) if it is not recognized. */ | |
59 | #define ONLY_STANDARD_ESCAPES | |
60 | ||
61 | /* Note that we do not define TC_EQUAL_IN_INSN, since its current use is | |
62 | in the instruction rather than the operand, and thus does not come to | |
63 | use for side-effect assignments such as "and.d [r0 = r1 + 42], r3". */ | |
64 | #define md_operand(x) | |
65 | ||
66 | #define md_number_to_chars number_to_chars_littleendian | |
67 | ||
68 | extern const int md_short_jump_size; | |
69 | extern const int md_long_jump_size; | |
70 | ||
71 | /* There's no use having different functions for this; the sizes are the | |
72 | same. Note that we can't #define md_short_jump_size here. */ | |
73 | #define md_create_short_jump md_create_long_jump | |
74 | ||
75 | extern const struct relax_type md_cris_relax_table[]; | |
76 | #define TC_GENERIC_RELAX_TABLE md_cris_relax_table | |
77 | ||
3bcbcc3d HPN |
78 | #define TC_FORCE_RELOCATION(fixp) md_cris_force_relocation (fixp) |
79 | extern int md_cris_force_relocation PARAMS ((struct fix *)); | |
80 | ||
08caf3f8 HPN |
81 | #define IS_CRIS_PIC_RELOC(X) \ |
82 | ((X) == BFD_RELOC_CRIS_16_GOT \ | |
83 | || (X) == BFD_RELOC_CRIS_32_GOT \ | |
84 | || (X) == BFD_RELOC_CRIS_16_GOTPLT \ | |
85 | || (X) == BFD_RELOC_CRIS_32_GOTPLT \ | |
86 | || (X) == BFD_RELOC_CRIS_32_GOTREL \ | |
87 | || (X) == BFD_RELOC_CRIS_32_PLT_GOTREL \ | |
88 | || (X) == BFD_RELOC_CRIS_32_PLT_PCREL) | |
89 | ||
90 | ||
91 | /* FIXME: Undocumented macro. Make sure we don't resolve fixups for which | |
92 | we want to emit dynamic relocations. */ | |
93 | ||
94 | #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ | |
95 | ((FIX)->fx_addsy == NULL \ | |
96 | || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
97 | && ! S_IS_WEAK ((FIX)->fx_addsy) \ | |
98 | && S_IS_DEFINED ((FIX)->fx_addsy) \ | |
99 | && ! S_IS_COMMON ((FIX)->fx_addsy) \ | |
100 | /* FIXME: Set fx_plt instead of this check. */ \ | |
101 | && ! IS_CRIS_PIC_RELOC ((FIX)->fx_r_type))) | |
102 | ||
3bcbcc3d HPN |
103 | /* This is really a workaround for a bug in write.c that resolves relocs |
104 | for weak symbols - it should be postponed to the link stage or later. | |
d551a338 HPN |
105 | Also don't adjust fixups for global symbols for ELF, and no relocs |
106 | where the original symbol name must be kept. */ | |
107 | #define tc_fix_adjustable(X) \ | |
108 | (((X)->fx_addsy == NULL \ | |
109 | || (! S_IS_WEAK ((X)->fx_addsy) \ | |
110 | && ! (OUTPUT_FLAVOR == bfd_target_elf_flavour \ | |
111 | && S_IS_EXTERNAL ((X)->fx_addsy)))) \ | |
112 | && (X)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \ | |
113 | && (X)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \ | |
114 | && (! IS_CRIS_PIC_RELOC ((X)->fx_r_type) \ | |
115 | || (X)->fx_r_type == BFD_RELOC_CRIS_32_GOTREL)) | |
3bcbcc3d HPN |
116 | |
117 | /* When we have fixups against constant expressions, we get a GAS-specific | |
118 | section symbol at no extra charge for obscure reasons in | |
119 | adjust_reloc_syms. Since ELF outputs section symbols, it gladly | |
08caf3f8 HPN |
120 | outputs this "*ABS*" symbol in every object. Avoid that. |
121 | Also, don't emit undefined symbols (that aren't used in relocations). | |
122 | They pop up when tentatively parsing register names as symbols. */ | |
3bcbcc3d HPN |
123 | #define tc_frob_symbol(symp, punt) \ |
124 | do { \ | |
08caf3f8 HPN |
125 | if ((OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
126 | && (symp) == section_symbol (absolute_section)) \ | |
127 | || ! S_IS_DEFINED (symp)) \ | |
3bcbcc3d HPN |
128 | (punt) = 1; \ |
129 | } while (0) | |
130 | ||
131 | #define LISTING_HEADER "GAS for CRIS" | |
132 | ||
133 | #if 0 | |
134 | /* The testsuite does not let me define these, although they IMHO should | |
135 | be preferred over the default. */ | |
136 | #define LISTING_WORD_SIZE 2 | |
137 | #define LISTING_LHS_WIDTH 4 | |
138 | #define LISTING_LHS_WIDTH_SECOND 4 | |
139 | #endif | |
140 | ||
141 | /* END of declaration and definitions described in the "internals" | |
142 | document. */ | |
143 | ||
144 | /* Do this, or we will never know what hit us when the | |
145 | broken-word-fixes break. Do _not_ use WARN_SIGNED_OVERFLOW_WORD, | |
146 | it is only for use with WORKING_DOT_WORD and warns about most stuff. | |
147 | (still in 2.9.1). */ | |
148 | struct broken_word; | |
149 | extern void tc_cris_check_adjusted_broken_word PARAMS ((offsetT, | |
150 | struct | |
151 | broken_word *)); | |
152 | #define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \ | |
153 | tc_cris_check_adjusted_broken_word ((offsetT) (new_offset), brokw) | |
154 | ||
155 | /* We don't want any implicit alignment, so we do nothing. */ | |
156 | #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) | |
157 | ||
fcdc20a4 HPN |
158 | /* CRIS instructions, with operands and prefixes included, are a multiple |
159 | of two bytes long. */ | |
160 | #define DWARF2_LINE_MIN_INSN_LENGTH 2 | |
161 | ||
3bcbcc3d HPN |
162 | #endif /* TC_CRIS */ |
163 | /* | |
164 | * Local variables: | |
165 | * eval: (c-set-style "gnu") | |
166 | * indent-tabs-mode: t | |
167 | * End: | |
168 | */ |