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9fb7806b | 1 | /* Definitions of target machine for GNU compiler, for ARM with a.out |
5b3e6663 | 2 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2004, 2007 |
2398fb2a | 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 | |
2f83c7d6 | 10 | by the Free Software Foundation; either version 3, or (at your |
4f448245 | 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 | 18 | You should have received a copy of the GNU General Public License |
2f83c7d6 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
9fb7806b | 21 | |
d5b7b3ae RE |
22 | #ifndef ASM_APP_ON |
23 | #define ASM_APP_ON "" | |
24 | #endif | |
25 | #ifndef ASM_APP_OFF | |
26 | #define ASM_APP_OFF "" | |
27 | #endif | |
9fb7806b RE |
28 | |
29 | /* Switch to the text or data segment. */ | |
93de6f51 HPN |
30 | #define TEXT_SECTION_ASM_OP "\t.text" |
31 | #define DATA_SECTION_ASM_OP "\t.data" | |
32 | #define BSS_SECTION_ASM_OP "\t.bss" | |
b355a481 NC |
33 | |
34 | /* Note: If USER_LABEL_PREFIX or LOCAL_LABEL_PREFIX are changed, | |
35 | make sure that this change is reflected in the function | |
4f448245 | 36 | coff_arm_is_local_label_name() in bfd/coff-arm.c. */ |
b355a481 NC |
37 | #ifndef REGISTER_PREFIX |
38 | #define REGISTER_PREFIX "" | |
39 | #endif | |
40 | ||
41 | #ifndef USER_LABEL_PREFIX | |
42 | #define USER_LABEL_PREFIX "_" | |
43 | #endif | |
44 | ||
45 | #ifndef LOCAL_LABEL_PREFIX | |
46 | #define LOCAL_LABEL_PREFIX "" | |
47 | #endif | |
9fb7806b | 48 | |
f1adb0a9 JB |
49 | /* The assembler's names for the registers. Note that the ?xx registers are |
50 | there so that VFPv3/NEON registers D16-D31 have the same spacing as D0-D15 | |
51 | (each of which is overlaid on two S registers), although there are no | |
52 | actual single-precision registers which correspond to D16-D31. */ | |
9fb7806b | 53 | #ifndef REGISTER_NAMES |
9b66ebb1 | 54 | #define REGISTER_NAMES \ |
9fb7806b RE |
55 | { \ |
56 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ | |
57 | "r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \ | |
58 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
9b6b54e2 | 59 | "cc", "sfp", "afp", \ |
5a9335ef NC |
60 | "mv0", "mv1", "mv2", "mv3", \ |
61 | "mv4", "mv5", "mv6", "mv7", \ | |
62 | "mv8", "mv9", "mv10", "mv11", \ | |
63 | "mv12", "mv13", "mv14", "mv15", \ | |
64 | "wcgr0", "wcgr1", "wcgr2", "wcgr3", \ | |
65 | "wr0", "wr1", "wr2", "wr3", \ | |
66 | "wr4", "wr5", "wr6", "wr7", \ | |
67 | "wr8", "wr9", "wr10", "wr11", \ | |
9b66ebb1 PB |
68 | "wr12", "wr13", "wr14", "wr15", \ |
69 | "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \ | |
70 | "s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15", \ | |
71 | "s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23", \ | |
72 | "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31", \ | |
f1adb0a9 JB |
73 | "d16", "?16", "d17", "?17", "d18", "?18", "d19", "?19", \ |
74 | "d20", "?20", "d21", "?21", "d22", "?22", "d23", "?23", \ | |
75 | "d24", "?24", "d25", "?25", "d26", "?26", "d27", "?27", \ | |
76 | "d28", "?28", "d29", "?29", "d30", "?30", "d31", "?31", \ | |
9b66ebb1 | 77 | "vfpcc" \ |
9fb7806b RE |
78 | } |
79 | #endif | |
80 | ||
81 | #ifndef ADDITIONAL_REGISTER_NAMES | |
82 | #define ADDITIONAL_REGISTER_NAMES \ | |
83 | { \ | |
84 | {"a1", 0}, \ | |
85 | {"a2", 1}, \ | |
86 | {"a3", 2}, \ | |
87 | {"a4", 3}, \ | |
88 | {"v1", 4}, \ | |
89 | {"v2", 5}, \ | |
90 | {"v3", 6}, \ | |
91 | {"v4", 7}, \ | |
92 | {"v5", 8}, \ | |
93 | {"v6", 9}, \ | |
94 | {"rfp", 9}, /* Gcc used to call it this */ \ | |
95 | {"sb", 9}, \ | |
96 | {"v7", 10}, \ | |
97 | {"r10", 10}, /* sl */ \ | |
98 | {"r11", 11}, /* fp */ \ | |
99 | {"r12", 12}, /* ip */ \ | |
100 | {"r13", 13}, /* sp */ \ | |
101 | {"r14", 14}, /* lr */ \ | |
9b6b54e2 NC |
102 | {"r15", 15}, /* pc */ \ |
103 | {"mvf0", 27}, \ | |
104 | {"mvf1", 28}, \ | |
105 | {"mvf2", 29}, \ | |
106 | {"mvf3", 30}, \ | |
107 | {"mvf4", 31}, \ | |
108 | {"mvf5", 32}, \ | |
109 | {"mvf6", 33}, \ | |
110 | {"mvf7", 34}, \ | |
111 | {"mvf8", 35}, \ | |
112 | {"mvf9", 36}, \ | |
113 | {"mvf10", 37}, \ | |
114 | {"mvf11", 38}, \ | |
115 | {"mvf12", 39}, \ | |
116 | {"mvf13", 40}, \ | |
117 | {"mvf14", 41}, \ | |
118 | {"mvf15", 42}, \ | |
119 | {"mvd0", 27}, \ | |
120 | {"mvd1", 28}, \ | |
121 | {"mvd2", 29}, \ | |
122 | {"mvd3", 30}, \ | |
123 | {"mvd4", 31}, \ | |
124 | {"mvd5", 32}, \ | |
125 | {"mvd6", 33}, \ | |
126 | {"mvd7", 34}, \ | |
127 | {"mvd8", 35}, \ | |
128 | {"mvd9", 36}, \ | |
129 | {"mvd10", 37}, \ | |
130 | {"mvd11", 38}, \ | |
131 | {"mvd12", 39}, \ | |
132 | {"mvd13", 40}, \ | |
133 | {"mvd14", 41}, \ | |
134 | {"mvd15", 42}, \ | |
135 | {"mvfx0", 27}, \ | |
136 | {"mvfx1", 28}, \ | |
137 | {"mvfx2", 29}, \ | |
138 | {"mvfx3", 30}, \ | |
139 | {"mvfx4", 31}, \ | |
140 | {"mvfx5", 32}, \ | |
141 | {"mvfx6", 33}, \ | |
142 | {"mvfx7", 34}, \ | |
143 | {"mvfx8", 35}, \ | |
144 | {"mvfx9", 36}, \ | |
145 | {"mvfx10", 37}, \ | |
146 | {"mvfx11", 38}, \ | |
147 | {"mvfx12", 39}, \ | |
148 | {"mvfx13", 40}, \ | |
149 | {"mvfx14", 41}, \ | |
150 | {"mvfx15", 42}, \ | |
151 | {"mvdx0", 27}, \ | |
152 | {"mvdx1", 28}, \ | |
153 | {"mvdx2", 29}, \ | |
154 | {"mvdx3", 30}, \ | |
155 | {"mvdx4", 31}, \ | |
156 | {"mvdx5", 32}, \ | |
157 | {"mvdx6", 33}, \ | |
158 | {"mvdx7", 34}, \ | |
159 | {"mvdx8", 35}, \ | |
160 | {"mvdx9", 36}, \ | |
161 | {"mvdx10", 37}, \ | |
162 | {"mvdx11", 38}, \ | |
163 | {"mvdx12", 39}, \ | |
164 | {"mvdx13", 40}, \ | |
165 | {"mvdx14", 41}, \ | |
9b66ebb1 | 166 | {"mvdx15", 42}, \ |
88f77cba | 167 | {"d0", 63}, {"q0", 63}, \ |
9b66ebb1 | 168 | {"d1", 65}, \ |
88f77cba | 169 | {"d2", 67}, {"q1", 67}, \ |
9b66ebb1 | 170 | {"d3", 69}, \ |
88f77cba | 171 | {"d4", 71}, {"q2", 71}, \ |
9b66ebb1 | 172 | {"d5", 73}, \ |
88f77cba | 173 | {"d6", 75}, {"q3", 75}, \ |
9b66ebb1 | 174 | {"d7", 77}, \ |
88f77cba | 175 | {"d8", 79}, {"q4", 79}, \ |
9b66ebb1 | 176 | {"d9", 81}, \ |
88f77cba | 177 | {"d10", 83}, {"q5", 83}, \ |
9b66ebb1 | 178 | {"d11", 85}, \ |
88f77cba | 179 | {"d12", 87}, {"q6", 87}, \ |
9b66ebb1 | 180 | {"d13", 89}, \ |
88f77cba | 181 | {"d14", 91}, {"q7", 91}, \ |
9b66ebb1 | 182 | {"d15", 93}, \ |
88f77cba JB |
183 | {"q8", 95}, \ |
184 | {"q9", 99}, \ | |
185 | {"q10", 103}, \ | |
186 | {"q11", 107}, \ | |
187 | {"q12", 111}, \ | |
188 | {"q13", 115}, \ | |
189 | {"q14", 119}, \ | |
190 | {"q15", 123} \ | |
9fb7806b RE |
191 | } |
192 | #endif | |
193 | ||
be393ecf | 194 | #ifndef NO_DOLLAR_IN_LABEL |
6cfc7210 | 195 | #define NO_DOLLAR_IN_LABEL 1 |
be393ecf | 196 | #endif |
9fb7806b | 197 | |
9fb7806b | 198 | /* Generate DBX debugging information. riscix.h will undefine this because |
4f448245 | 199 | the native assembler does not support stabs. */ |
23532de9 | 200 | #define DBX_DEBUGGING_INFO 1 |
9fb7806b RE |
201 | |
202 | /* Acorn dbx moans about continuation chars, so don't use any. */ | |
203 | #ifndef DBX_CONTIN_LENGTH | |
204 | #define DBX_CONTIN_LENGTH 0 | |
205 | #endif | |
206 | ||
9fb7806b | 207 | /* Output a function label definition. */ |
b355a481 | 208 | #ifndef ASM_DECLARE_FUNCTION_NAME |
6cfc7210 NC |
209 | #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \ |
210 | do \ | |
211 | { \ | |
212 | ARM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL); \ | |
213 | ASM_OUTPUT_LABEL (STREAM, NAME); \ | |
214 | } \ | |
215 | while (0) | |
b355a481 | 216 | #endif |
9fb7806b | 217 | |
506a61b1 KG |
218 | /* Globalizing directive for a label. */ |
219 | #define GLOBAL_ASM_OP "\t.global\t" | |
9fb7806b | 220 | |
9fb7806b | 221 | /* Make an internal label into a string. */ |
b355a481 | 222 | #ifndef ASM_GENERATE_INTERNAL_LABEL |
9fb7806b | 223 | #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ |
aec3cfba | 224 | sprintf (STRING, "*%s%s%u", LOCAL_LABEL_PREFIX, PREFIX, (unsigned int)(NUM)) |
b355a481 NC |
225 | #endif |
226 | ||
9fb7806b | 227 | /* Output an element of a dispatch table. */ |
5b3e6663 PB |
228 | #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ |
229 | do \ | |
230 | { \ | |
231 | gcc_assert (!TARGET_THUMB2); \ | |
232 | asm_fprintf (STREAM, "\t.word\t%LL%d\n", VALUE); \ | |
233 | } \ | |
234 | while (0) | |
235 | ||
9fb7806b | 236 | |
5b3e6663 PB |
237 | /* Thumb-2 always uses addr_diff_elf so that the Table Branch instructions |
238 | can be used. For non-pic code where the offsets do not suitable for | |
239 | TBB/TBH the elements are output as absolute labels. */ | |
657d9449 RE |
240 | #define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ |
241 | do \ | |
242 | { \ | |
243 | if (TARGET_ARM) \ | |
244 | asm_fprintf (STREAM, "\tb\t%LL%d\n", VALUE); \ | |
5b3e6663 | 245 | else if (TARGET_THUMB1) \ |
657d9449 | 246 | asm_fprintf (STREAM, "\t.word\t%LL%d-%LL%d\n", VALUE, REL); \ |
5b3e6663 PB |
247 | else /* Thumb-2 */ \ |
248 | { \ | |
249 | switch (GET_MODE(body)) \ | |
250 | { \ | |
251 | case QImode: /* TBB */ \ | |
252 | asm_fprintf (STREAM, "\t.byte\t(%LL%d-%LL%d)/2\n", \ | |
253 | VALUE, REL); \ | |
254 | break; \ | |
255 | case HImode: /* TBH */ \ | |
256 | asm_fprintf (STREAM, "\t.2byte\t(%LL%d-%LL%d)/2\n", \ | |
257 | VALUE, REL); \ | |
258 | break; \ | |
259 | case SImode: \ | |
260 | if (flag_pic) \ | |
261 | asm_fprintf (STREAM, "\t.word\t%LL%d+1-%LL%d\n", VALUE, REL); \ | |
262 | else \ | |
263 | asm_fprintf (STREAM, "\t.word\t%LL%d+1\n", VALUE); \ | |
264 | break; \ | |
265 | default: \ | |
266 | gcc_unreachable(); \ | |
267 | } \ | |
268 | } \ | |
657d9449 RE |
269 | } \ |
270 | while (0) | |
271 | ||
9fb7806b | 272 | |
be393ecf | 273 | #undef ASM_OUTPUT_ASCII |
9fb7806b | 274 | #define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \ |
5a9335ef | 275 | output_ascii_pseudo_op (STREAM, (const unsigned char *) (PTR), LEN) |
9fb7806b RE |
276 | |
277 | /* Output a gap. In fact we fill it with nulls. */ | |
be393ecf | 278 | #undef ASM_OUTPUT_SKIP |
b355a481 | 279 | #define ASM_OUTPUT_SKIP(STREAM, NBYTES) \ |
5a9335ef | 280 | fprintf (STREAM, "\t.space\t%d\n", (int) (NBYTES)) |
9fb7806b RE |
281 | |
282 | /* Align output to a power of two. Horrible /bin/as. */ | |
00275db1 | 283 | #ifndef ASM_OUTPUT_ALIGN |
6cfc7210 NC |
284 | #define ASM_OUTPUT_ALIGN(STREAM, POWER) \ |
285 | do \ | |
286 | { \ | |
287 | register int amount = 1 << (POWER); \ | |
288 | \ | |
289 | if (amount == 2) \ | |
290 | fprintf (STREAM, "\t.even\n"); \ | |
291 | else if (amount != 1) \ | |
292 | fprintf (STREAM, "\t.align\t%d\n", amount - 4); \ | |
293 | } \ | |
00275db1 PB |
294 | while (0) |
295 | #endif | |
9fb7806b | 296 | |
4f448245 | 297 | /* Output a common block. */ |
b355a481 | 298 | #ifndef ASM_OUTPUT_COMMON |
6cfc7210 NC |
299 | #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \ |
300 | do \ | |
301 | { \ | |
302 | fprintf (STREAM, "\t.comm\t"); \ | |
303 | assemble_name (STREAM, NAME); \ | |
d5b7b3ae | 304 | asm_fprintf (STREAM, ", %d\t%@ %d\n", \ |
58e15542 | 305 | (int)(ROUNDED), (int)(SIZE)); \ |
6cfc7210 NC |
306 | } \ |
307 | while (0) | |
b355a481 NC |
308 | #endif |
309 | ||
33f7f353 | 310 | /* Output a local common block. /bin/as can't do this, so hack a |
b355a481 NC |
311 | `.space' into the bss segment. Note that this is *bad* practice, |
312 | which is guaranteed NOT to work since it doesn't define STATIC | |
313 | COMMON space but merely STATIC BSS space. */ | |
314 | #ifndef ASM_OUTPUT_ALIGNED_LOCAL | |
6cfc7210 NC |
315 | #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \ |
316 | do \ | |
317 | { \ | |
d6b5193b | 318 | switch_to_section (bss_section); \ |
6cfc7210 NC |
319 | ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \ |
320 | ASM_OUTPUT_LABEL (STREAM, NAME); \ | |
58e15542 | 321 | fprintf (STREAM, "\t.space\t%d\n", (int)(SIZE)); \ |
6cfc7210 NC |
322 | } \ |
323 | while (0) | |
b355a481 NC |
324 | #endif |
325 | ||
c9d9bc85 | 326 | /* Output a zero-initialized block. */ |
b355a481 | 327 | #ifndef ASM_OUTPUT_ALIGNED_BSS |
6cfc7210 | 328 | #define ASM_OUTPUT_ALIGNED_BSS(STREAM, DECL, NAME, SIZE, ALIGN) \ |
b355a481 NC |
329 | asm_output_aligned_bss (STREAM, DECL, NAME, SIZE, ALIGN) |
330 | #endif | |
9fb7806b RE |
331 | |
332 | /* Output a #ident directive. */ | |
b355a481 | 333 | #ifndef ASM_OUTPUT_IDENT |
9fb7806b | 334 | #define ASM_OUTPUT_IDENT(STREAM,STRING) \ |
d5b7b3ae | 335 | asm_fprintf (STREAM, "%@ - - - ident %s\n", STRING) |
b355a481 NC |
336 | #endif |
337 | ||
9fb7806b | 338 | #ifndef ASM_COMMENT_START |
b355a481 | 339 | #define ASM_COMMENT_START "@" |
9fb7806b RE |
340 | #endif |
341 | ||
ce29b9d0 | 342 | /* This works for GAS and some other assemblers. */ |
93de6f51 | 343 | #define SET_ASM_OP "\t.set\t" |