1 /* Definitions of target machine for GNU compiler, for ARM with a.out 2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2004 3 Free Software Foundation, Inc. 4 Contributed by Richard Earnshaw (rearnsha@armltd.co.uk). 5 6 This file is part of GCC. 7 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. 12 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. 17 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, 51 Franklin Street, Fifth Floor, 21 Boston, MA 02110-1301, USA. */ 22 23 #ifndef ASM_APP_ON 24 #define ASM_APP_ON "" 25 #endif 26 #ifndef ASM_APP_OFF 27 #define ASM_APP_OFF "" 28 #endif 29 30 /* Switch to the text or data segment. */ 31 #define TEXT_SECTION_ASM_OP "\t.text" 32 #define DATA_SECTION_ASM_OP "\t.data" 33 #define BSS_SECTION_ASM_OP "\t.bss" 34 35 /* Note: If USER_LABEL_PREFIX or LOCAL_LABEL_PREFIX are changed, 36 make sure that this change is reflected in the function 37 coff_arm_is_local_label_name() in bfd/coff-arm.c. */ 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 49 50 /* The assembler's names for the registers. */ 51 #ifndef REGISTER_NAMES 52 #define REGISTER_NAMES \ 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", \ 57 "cc", "sfp", "afp", \ 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", \ 67 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \ 68 "s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15", \ 69 "s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23", \ 70 "s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31", \ 71 "vfpcc" \ 72 } 73 #endif 74 75 #ifndef ADDITIONAL_REGISTER_NAMES 76 #define ADDITIONAL_REGISTER_NAMES \ 77 { \ 78 {"a1", 0}, \ 79 {"a2", 1}, \ 80 {"a3", 2}, \ 81 {"a4", 3}, \ 82 {"v1", 4}, \ 83 {"v2", 5}, \ 84 {"v3", 6}, \ 85 {"v4", 7}, \ 86 {"v5", 8}, \ 87 {"v6", 9}, \ 88 {"rfp", 9}, /* Gcc used to call it this */ \ 89 {"sb", 9}, \ 90 {"v7", 10}, \ 91 {"r10", 10}, /* sl */ \ 92 {"r11", 11}, /* fp */ \ 93 {"r12", 12}, /* ip */ \ 94 {"r13", 13}, /* sp */ \ 95 {"r14", 14}, /* lr */ \ 96 {"r15", 15}, /* pc */ \ 97 {"mvf0", 27}, \ 98 {"mvf1", 28}, \ 99 {"mvf2", 29}, \ 100 {"mvf3", 30}, \ 101 {"mvf4", 31}, \ 102 {"mvf5", 32}, \ 103 {"mvf6", 33}, \ 104 {"mvf7", 34}, \ 105 {"mvf8", 35}, \ 106 {"mvf9", 36}, \ 107 {"mvf10", 37}, \ 108 {"mvf11", 38}, \ 109 {"mvf12", 39}, \ 110 {"mvf13", 40}, \ 111 {"mvf14", 41}, \ 112 {"mvf15", 42}, \ 113 {"mvd0", 27}, \ 114 {"mvd1", 28}, \ 115 {"mvd2", 29}, \ 116 {"mvd3", 30}, \ 117 {"mvd4", 31}, \ 118 {"mvd5", 32}, \ 119 {"mvd6", 33}, \ 120 {"mvd7", 34}, \ 121 {"mvd8", 35}, \ 122 {"mvd9", 36}, \ 123 {"mvd10", 37}, \ 124 {"mvd11", 38}, \ 125 {"mvd12", 39}, \ 126 {"mvd13", 40}, \ 127 {"mvd14", 41}, \ 128 {"mvd15", 42}, \ 129 {"mvfx0", 27}, \ 130 {"mvfx1", 28}, \ 131 {"mvfx2", 29}, \ 132 {"mvfx3", 30}, \ 133 {"mvfx4", 31}, \ 134 {"mvfx5", 32}, \ 135 {"mvfx6", 33}, \ 136 {"mvfx7", 34}, \ 137 {"mvfx8", 35}, \ 138 {"mvfx9", 36}, \ 139 {"mvfx10", 37}, \ 140 {"mvfx11", 38}, \ 141 {"mvfx12", 39}, \ 142 {"mvfx13", 40}, \ 143 {"mvfx14", 41}, \ 144 {"mvfx15", 42}, \ 145 {"mvdx0", 27}, \ 146 {"mvdx1", 28}, \ 147 {"mvdx2", 29}, \ 148 {"mvdx3", 30}, \ 149 {"mvdx4", 31}, \ 150 {"mvdx5", 32}, \ 151 {"mvdx6", 33}, \ 152 {"mvdx7", 34}, \ 153 {"mvdx8", 35}, \ 154 {"mvdx9", 36}, \ 155 {"mvdx10", 37}, \ 156 {"mvdx11", 38}, \ 157 {"mvdx12", 39}, \ 158 {"mvdx13", 40}, \ 159 {"mvdx14", 41}, \ 160 {"mvdx15", 42}, \ 161 {"d0", 63}, \ 162 {"d1", 65}, \ 163 {"d2", 67}, \ 164 {"d3", 69}, \ 165 {"d4", 71}, \ 166 {"d5", 73}, \ 167 {"d6", 75}, \ 168 {"d7", 77}, \ 169 {"d8", 79}, \ 170 {"d9", 81}, \ 171 {"d10", 83}, \ 172 {"d11", 85}, \ 173 {"d12", 87}, \ 174 {"d13", 89}, \ 175 {"d14", 91}, \ 176 {"d15", 93}, \ 177 } 178 #endif 179 180 /* Arm Assembler barfs on dollars. */ 181 #define DOLLARS_IN_IDENTIFIERS 0 182 183 #ifndef NO_DOLLAR_IN_LABEL 184 #define NO_DOLLAR_IN_LABEL 1 185 #endif 186 187 /* Generate DBX debugging information. riscix.h will undefine this because 188 the native assembler does not support stabs. */ 189 #define DBX_DEBUGGING_INFO 1 190 191 /* Acorn dbx moans about continuation chars, so don't use any. */ 192 #ifndef DBX_CONTIN_LENGTH 193 #define DBX_CONTIN_LENGTH 0 194 #endif 195 196 /* Output a function label definition. */ 197 #ifndef ASM_DECLARE_FUNCTION_NAME 198 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \ 199 do \ 200 { \ 201 ARM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL); \ 202 ASM_OUTPUT_LABEL (STREAM, NAME); \ 203 } \ 204 while (0) 205 #endif 206 207 /* Globalizing directive for a label. */ 208 #define GLOBAL_ASM_OP "\t.global\t" 209 210 /* Make an internal label into a string. */ 211 #ifndef ASM_GENERATE_INTERNAL_LABEL 212 #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ 213 sprintf (STRING, "*%s%s%u", LOCAL_LABEL_PREFIX, PREFIX, (unsigned int)(NUM)) 214 #endif 215 216 /* Output an element of a dispatch table. */ 217 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ 218 asm_fprintf (STREAM, "\t.word\t%LL%d\n", VALUE) 219 220 #define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ 221 do \ 222 { \ 223 if (TARGET_ARM) \ 224 asm_fprintf (STREAM, "\tb\t%LL%d\n", VALUE); \ 225 else \ 226 asm_fprintf (STREAM, "\t.word\t%LL%d-%LL%d\n", VALUE, REL); \ 227 } \ 228 while (0) 229 230 231 #undef ASM_OUTPUT_ASCII 232 #define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \ 233 output_ascii_pseudo_op (STREAM, (const unsigned char *) (PTR), LEN) 234 235 /* Output a gap. In fact we fill it with nulls. */ 236 #undef ASM_OUTPUT_SKIP 237 #define ASM_OUTPUT_SKIP(STREAM, NBYTES) \ 238 fprintf (STREAM, "\t.space\t%d\n", (int) (NBYTES)) 239 240 /* Align output to a power of two. Horrible /bin/as. */ 241 #ifndef ASM_OUTPUT_ALIGN 242 #define ASM_OUTPUT_ALIGN(STREAM, POWER) \ 243 do \ 244 { \ 245 register int amount = 1 << (POWER); \ 246 \ 247 if (amount == 2) \ 248 fprintf (STREAM, "\t.even\n"); \ 249 else if (amount != 1) \ 250 fprintf (STREAM, "\t.align\t%d\n", amount - 4); \ 251 } \ 252 while (0) 253 #endif 254 255 /* Output a common block. */ 256 #ifndef ASM_OUTPUT_COMMON 257 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \ 258 do \ 259 { \ 260 fprintf (STREAM, "\t.comm\t"); \ 261 assemble_name (STREAM, NAME); \ 262 asm_fprintf (STREAM, ", %d\t%@ %d\n", \ 263 (int)(ROUNDED), (int)(SIZE)); \ 264 } \ 265 while (0) 266 #endif 267 268 /* Output a local common block. /bin/as can't do this, so hack a 269 `.space' into the bss segment. Note that this is *bad* practice, 270 which is guaranteed NOT to work since it doesn't define STATIC 271 COMMON space but merely STATIC BSS space. */ 272 #ifndef ASM_OUTPUT_ALIGNED_LOCAL 273 #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \ 274 do \ 275 { \ 276 switch_to_section (bss_section); \ 277 ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \ 278 ASM_OUTPUT_LABEL (STREAM, NAME); \ 279 fprintf (STREAM, "\t.space\t%d\n", (int)(SIZE)); \ 280 } \ 281 while (0) 282 #endif 283 284 /* Output a zero-initialized block. */ 285 #ifndef ASM_OUTPUT_ALIGNED_BSS 286 #define ASM_OUTPUT_ALIGNED_BSS(STREAM, DECL, NAME, SIZE, ALIGN) \ 287 asm_output_aligned_bss (STREAM, DECL, NAME, SIZE, ALIGN) 288 #endif 289 290 /* Output a #ident directive. */ 291 #ifndef ASM_OUTPUT_IDENT 292 #define ASM_OUTPUT_IDENT(STREAM,STRING) \ 293 asm_fprintf (STREAM, "%@ - - - ident %s\n", STRING) 294 #endif 295 296 #ifndef ASM_COMMENT_START 297 #define ASM_COMMENT_START "@" 298 #endif 299 300 /* This works for GAS and some other assemblers. */ 301 #define SET_ASM_OP "\t.set\t" 302