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9fb7806b | 1 | /* Definitions of target machine for GNU compiler, for ARM with a.out |
2398fb2a RB |
2 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 |
3 | Free Software Foundation, Inc. | |
ae3e1bb4 | 4 | Contributed by Richard Earnshaw (rearnsha@armltd.co.uk). |
9fb7806b | 5 | |
4f448245 | 6 | This file is part of GCC. |
9fb7806b | 7 | |
4f448245 NC |
8 | GCC is free software; you can redistribute it and/or modify it |
9 | under the terms of the GNU General Public License as published | |
10 | by the Free Software Foundation; either version 2, or (at your | |
11 | option) any later version. | |
9fb7806b | 12 | |
4f448245 NC |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
16 | License for more details. | |
9fb7806b | 17 | |
4f448245 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with GCC; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
9fb7806b | 22 | |
d5b7b3ae RE |
23 | #ifndef ASM_APP_ON |
24 | #define ASM_APP_ON "" | |
25 | #endif | |
26 | #ifndef ASM_APP_OFF | |
27 | #define ASM_APP_OFF "" | |
28 | #endif | |
9fb7806b RE |
29 | |
30 | /* Switch to the text or data segment. */ | |
93de6f51 HPN |
31 | #define TEXT_SECTION_ASM_OP "\t.text" |
32 | #define DATA_SECTION_ASM_OP "\t.data" | |
33 | #define BSS_SECTION_ASM_OP "\t.bss" | |
b355a481 NC |
34 | |
35 | /* Note: If USER_LABEL_PREFIX or LOCAL_LABEL_PREFIX are changed, | |
36 | make sure that this change is reflected in the function | |
4f448245 | 37 | coff_arm_is_local_label_name() in bfd/coff-arm.c. */ |
b355a481 NC |
38 | #ifndef REGISTER_PREFIX |
39 | #define REGISTER_PREFIX "" | |
40 | #endif | |
41 | ||
42 | #ifndef USER_LABEL_PREFIX | |
43 | #define USER_LABEL_PREFIX "_" | |
44 | #endif | |
45 | ||
46 | #ifndef LOCAL_LABEL_PREFIX | |
47 | #define LOCAL_LABEL_PREFIX "" | |
48 | #endif | |
9fb7806b | 49 | |
9fb7806b RE |
50 | /* The assembler's names for the registers. */ |
51 | #ifndef REGISTER_NAMES | |
b355a481 | 52 | #define REGISTER_NAMES \ |
9fb7806b RE |
53 | { \ |
54 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ | |
55 | "r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \ | |
56 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
9b6b54e2 | 57 | "cc", "sfp", "afp", \ |
5a9335ef NC |
58 | "mv0", "mv1", "mv2", "mv3", \ |
59 | "mv4", "mv5", "mv6", "mv7", \ | |
60 | "mv8", "mv9", "mv10", "mv11", \ | |
61 | "mv12", "mv13", "mv14", "mv15", \ | |
62 | "wcgr0", "wcgr1", "wcgr2", "wcgr3", \ | |
63 | "wr0", "wr1", "wr2", "wr3", \ | |
64 | "wr4", "wr5", "wr6", "wr7", \ | |
65 | "wr8", "wr9", "wr10", "wr11", \ | |
66 | "wr12", "wr13", "wr14", "wr15" \ | |
9fb7806b RE |
67 | } |
68 | #endif | |
69 | ||
70 | #ifndef ADDITIONAL_REGISTER_NAMES | |
71 | #define ADDITIONAL_REGISTER_NAMES \ | |
72 | { \ | |
73 | {"a1", 0}, \ | |
74 | {"a2", 1}, \ | |
75 | {"a3", 2}, \ | |
76 | {"a4", 3}, \ | |
77 | {"v1", 4}, \ | |
78 | {"v2", 5}, \ | |
79 | {"v3", 6}, \ | |
80 | {"v4", 7}, \ | |
81 | {"v5", 8}, \ | |
82 | {"v6", 9}, \ | |
83 | {"rfp", 9}, /* Gcc used to call it this */ \ | |
84 | {"sb", 9}, \ | |
85 | {"v7", 10}, \ | |
86 | {"r10", 10}, /* sl */ \ | |
87 | {"r11", 11}, /* fp */ \ | |
88 | {"r12", 12}, /* ip */ \ | |
89 | {"r13", 13}, /* sp */ \ | |
90 | {"r14", 14}, /* lr */ \ | |
9b6b54e2 NC |
91 | {"r15", 15}, /* pc */ \ |
92 | {"mvf0", 27}, \ | |
93 | {"mvf1", 28}, \ | |
94 | {"mvf2", 29}, \ | |
95 | {"mvf3", 30}, \ | |
96 | {"mvf4", 31}, \ | |
97 | {"mvf5", 32}, \ | |
98 | {"mvf6", 33}, \ | |
99 | {"mvf7", 34}, \ | |
100 | {"mvf8", 35}, \ | |
101 | {"mvf9", 36}, \ | |
102 | {"mvf10", 37}, \ | |
103 | {"mvf11", 38}, \ | |
104 | {"mvf12", 39}, \ | |
105 | {"mvf13", 40}, \ | |
106 | {"mvf14", 41}, \ | |
107 | {"mvf15", 42}, \ | |
108 | {"mvd0", 27}, \ | |
109 | {"mvd1", 28}, \ | |
110 | {"mvd2", 29}, \ | |
111 | {"mvd3", 30}, \ | |
112 | {"mvd4", 31}, \ | |
113 | {"mvd5", 32}, \ | |
114 | {"mvd6", 33}, \ | |
115 | {"mvd7", 34}, \ | |
116 | {"mvd8", 35}, \ | |
117 | {"mvd9", 36}, \ | |
118 | {"mvd10", 37}, \ | |
119 | {"mvd11", 38}, \ | |
120 | {"mvd12", 39}, \ | |
121 | {"mvd13", 40}, \ | |
122 | {"mvd14", 41}, \ | |
123 | {"mvd15", 42}, \ | |
124 | {"mvfx0", 27}, \ | |
125 | {"mvfx1", 28}, \ | |
126 | {"mvfx2", 29}, \ | |
127 | {"mvfx3", 30}, \ | |
128 | {"mvfx4", 31}, \ | |
129 | {"mvfx5", 32}, \ | |
130 | {"mvfx6", 33}, \ | |
131 | {"mvfx7", 34}, \ | |
132 | {"mvfx8", 35}, \ | |
133 | {"mvfx9", 36}, \ | |
134 | {"mvfx10", 37}, \ | |
135 | {"mvfx11", 38}, \ | |
136 | {"mvfx12", 39}, \ | |
137 | {"mvfx13", 40}, \ | |
138 | {"mvfx14", 41}, \ | |
139 | {"mvfx15", 42}, \ | |
140 | {"mvdx0", 27}, \ | |
141 | {"mvdx1", 28}, \ | |
142 | {"mvdx2", 29}, \ | |
143 | {"mvdx3", 30}, \ | |
144 | {"mvdx4", 31}, \ | |
145 | {"mvdx5", 32}, \ | |
146 | {"mvdx6", 33}, \ | |
147 | {"mvdx7", 34}, \ | |
148 | {"mvdx8", 35}, \ | |
149 | {"mvdx9", 36}, \ | |
150 | {"mvdx10", 37}, \ | |
151 | {"mvdx11", 38}, \ | |
152 | {"mvdx12", 39}, \ | |
153 | {"mvdx13", 40}, \ | |
154 | {"mvdx14", 41}, \ | |
155 | {"mvdx15", 42} \ | |
9fb7806b RE |
156 | } |
157 | #endif | |
158 | ||
4f448245 | 159 | /* Arm Assembler barfs on dollars. */ |
9fb7806b RE |
160 | #define DOLLARS_IN_IDENTIFIERS 0 |
161 | ||
be393ecf | 162 | #ifndef NO_DOLLAR_IN_LABEL |
6cfc7210 | 163 | #define NO_DOLLAR_IN_LABEL 1 |
be393ecf | 164 | #endif |
9fb7806b | 165 | |
9fb7806b | 166 | /* Generate DBX debugging information. riscix.h will undefine this because |
4f448245 | 167 | the native assembler does not support stabs. */ |
23532de9 | 168 | #define DBX_DEBUGGING_INFO 1 |
9fb7806b RE |
169 | |
170 | /* Acorn dbx moans about continuation chars, so don't use any. */ | |
171 | #ifndef DBX_CONTIN_LENGTH | |
172 | #define DBX_CONTIN_LENGTH 0 | |
173 | #endif | |
174 | ||
175 | /* Output a source filename for the debugger. RISCiX dbx insists that the | |
176 | ``desc'' field is set to compiler version number >= 315 (sic). */ | |
6cfc7210 NC |
177 | #define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM, NAME) \ |
178 | do \ | |
179 | { \ | |
180 | fprintf (STREAM, ".stabs "); \ | |
181 | output_quoted_string (STREAM, NAME); \ | |
182 | fprintf (STREAM, ",%d,0,315,%s\n", N_SO, <ext_label_name[1]); \ | |
183 | text_section (); \ | |
4977bab6 | 184 | (*targetm.asm_out.internal_label) (STREAM, "Ltext", 0); \ |
6cfc7210 NC |
185 | } \ |
186 | while (0) | |
9fb7806b RE |
187 | |
188 | /* Output a function label definition. */ | |
b355a481 | 189 | #ifndef ASM_DECLARE_FUNCTION_NAME |
6cfc7210 NC |
190 | #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \ |
191 | do \ | |
192 | { \ | |
193 | ARM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL); \ | |
194 | ASM_OUTPUT_LABEL (STREAM, NAME); \ | |
195 | } \ | |
196 | while (0) | |
b355a481 | 197 | #endif |
9fb7806b | 198 | |
506a61b1 KG |
199 | /* Globalizing directive for a label. */ |
200 | #define GLOBAL_ASM_OP "\t.global\t" | |
9fb7806b | 201 | |
9fb7806b | 202 | /* Make an internal label into a string. */ |
b355a481 | 203 | #ifndef ASM_GENERATE_INTERNAL_LABEL |
9fb7806b | 204 | #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ |
aec3cfba | 205 | sprintf (STRING, "*%s%s%u", LOCAL_LABEL_PREFIX, PREFIX, (unsigned int)(NUM)) |
b355a481 NC |
206 | #endif |
207 | ||
9fb7806b | 208 | /* Output an element of a dispatch table. */ |
6cfc7210 NC |
209 | #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ |
210 | asm_fprintf (STREAM, "\t.word\t%LL%d\n", VALUE) | |
9fb7806b | 211 | |
657d9449 RE |
212 | #define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ |
213 | do \ | |
214 | { \ | |
215 | if (TARGET_ARM) \ | |
216 | asm_fprintf (STREAM, "\tb\t%LL%d\n", VALUE); \ | |
217 | else \ | |
218 | asm_fprintf (STREAM, "\t.word\t%LL%d-%LL%d\n", VALUE, REL); \ | |
219 | } \ | |
220 | while (0) | |
221 | ||
9fb7806b | 222 | |
be393ecf | 223 | #undef ASM_OUTPUT_ASCII |
9fb7806b | 224 | #define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \ |
5a9335ef | 225 | output_ascii_pseudo_op (STREAM, (const unsigned char *) (PTR), LEN) |
9fb7806b RE |
226 | |
227 | /* Output a gap. In fact we fill it with nulls. */ | |
be393ecf | 228 | #undef ASM_OUTPUT_SKIP |
b355a481 | 229 | #define ASM_OUTPUT_SKIP(STREAM, NBYTES) \ |
5a9335ef | 230 | fprintf (STREAM, "\t.space\t%d\n", (int) (NBYTES)) |
9fb7806b RE |
231 | |
232 | /* Align output to a power of two. Horrible /bin/as. */ | |
00275db1 | 233 | #ifndef ASM_OUTPUT_ALIGN |
6cfc7210 NC |
234 | #define ASM_OUTPUT_ALIGN(STREAM, POWER) \ |
235 | do \ | |
236 | { \ | |
237 | register int amount = 1 << (POWER); \ | |
238 | \ | |
239 | if (amount == 2) \ | |
240 | fprintf (STREAM, "\t.even\n"); \ | |
241 | else if (amount != 1) \ | |
242 | fprintf (STREAM, "\t.align\t%d\n", amount - 4); \ | |
243 | } \ | |
00275db1 PB |
244 | while (0) |
245 | #endif | |
9fb7806b | 246 | |
4f448245 | 247 | /* Output a common block. */ |
b355a481 | 248 | #ifndef ASM_OUTPUT_COMMON |
6cfc7210 NC |
249 | #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \ |
250 | do \ | |
251 | { \ | |
252 | fprintf (STREAM, "\t.comm\t"); \ | |
253 | assemble_name (STREAM, NAME); \ | |
d5b7b3ae | 254 | asm_fprintf (STREAM, ", %d\t%@ %d\n", \ |
58e15542 | 255 | (int)(ROUNDED), (int)(SIZE)); \ |
6cfc7210 NC |
256 | } \ |
257 | while (0) | |
b355a481 NC |
258 | #endif |
259 | ||
33f7f353 | 260 | /* Output a local common block. /bin/as can't do this, so hack a |
b355a481 NC |
261 | `.space' into the bss segment. Note that this is *bad* practice, |
262 | which is guaranteed NOT to work since it doesn't define STATIC | |
263 | COMMON space but merely STATIC BSS space. */ | |
264 | #ifndef ASM_OUTPUT_ALIGNED_LOCAL | |
6cfc7210 NC |
265 | #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \ |
266 | do \ | |
267 | { \ | |
268 | bss_section (); \ | |
269 | ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \ | |
270 | ASM_OUTPUT_LABEL (STREAM, NAME); \ | |
58e15542 | 271 | fprintf (STREAM, "\t.space\t%d\n", (int)(SIZE)); \ |
6cfc7210 NC |
272 | } \ |
273 | while (0) | |
b355a481 NC |
274 | #endif |
275 | ||
c9d9bc85 | 276 | /* Output a zero-initialized block. */ |
b355a481 | 277 | #ifndef ASM_OUTPUT_ALIGNED_BSS |
6cfc7210 | 278 | #define ASM_OUTPUT_ALIGNED_BSS(STREAM, DECL, NAME, SIZE, ALIGN) \ |
b355a481 NC |
279 | asm_output_aligned_bss (STREAM, DECL, NAME, SIZE, ALIGN) |
280 | #endif | |
9fb7806b RE |
281 | |
282 | /* Output a #ident directive. */ | |
b355a481 | 283 | #ifndef ASM_OUTPUT_IDENT |
9fb7806b | 284 | #define ASM_OUTPUT_IDENT(STREAM,STRING) \ |
d5b7b3ae | 285 | asm_fprintf (STREAM, "%@ - - - ident %s\n", STRING) |
b355a481 NC |
286 | #endif |
287 | ||
9fb7806b | 288 | #ifndef ASM_COMMENT_START |
b355a481 | 289 | #define ASM_COMMENT_START "@" |
9fb7806b RE |
290 | #endif |
291 | ||
ce29b9d0 | 292 | /* This works for GAS and some other assemblers. */ |
93de6f51 | 293 | #define SET_ASM_OP "\t.set\t" |