1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _SLJIT_CONFIG_INTERNAL_H_ 28 #define _SLJIT_CONFIG_INTERNAL_H_ 29 30 /* 31 SLJIT defines the following architecture dependent types and macros: 32 33 Types: 34 sljit_s8, sljit_u8 : signed and unsigned 8 bit integer type 35 sljit_s16, sljit_u16 : signed and unsigned 16 bit integer type 36 sljit_s32, sljit_u32 : signed and unsigned 32 bit integer type 37 sljit_sw, sljit_uw : signed and unsigned machine word, enough to store a pointer 38 sljit_p : unsgined pointer value (usually the same as sljit_uw, but 39 some 64 bit ABIs may use 32 bit pointers) 40 sljit_f32 : 32 bit single precision floating point value 41 sljit_f64 : 64 bit double precision floating point value 42 43 Macros for feature detection (boolean): 44 SLJIT_32BIT_ARCHITECTURE : 32 bit architecture 45 SLJIT_64BIT_ARCHITECTURE : 64 bit architecture 46 SLJIT_LITTLE_ENDIAN : little endian architecture 47 SLJIT_BIG_ENDIAN : big endian architecture 48 SLJIT_UNALIGNED : allows unaligned memory accesses for non-fpu operations (only!) 49 SLJIT_INDIRECT_CALL : see SLJIT_FUNC_OFFSET() for more information 50 51 Constants: 52 SLJIT_NUMBER_OF_REGISTERS : number of available registers 53 SLJIT_NUMBER_OF_SCRATCH_REGISTERS : number of available scratch registers 54 SLJIT_NUMBER_OF_SAVED_REGISTERS : number of available saved registers 55 SLJIT_NUMBER_OF_FLOAT_REGISTERS : number of available floating point registers 56 SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS : number of available floating point scratch registers 57 SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS : number of available floating point saved registers 58 SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_sw/sljit_uw array by index 59 SLJIT_F32_SHIFT : the shift required to apply when accessing 60 a single precision floating point array by index 61 SLJIT_F64_SHIFT : the shift required to apply when accessing 62 a double precision floating point array by index 63 SLJIT_LOCALS_OFFSET : local space starting offset (SLJIT_SP + SLJIT_LOCALS_OFFSET) 64 SLJIT_RETURN_ADDRESS_OFFSET : a return instruction always adds this offset to the return address 65 66 Other macros: 67 SLJIT_CALL : C calling convention define for both calling JIT form C and C callbacks for JIT 68 SLJIT_W(number) : defining 64 bit constants on 64 bit architectures (compiler independent helper) 69 */ 70 71 /*****************/ 72 /* Sanity check. */ 73 /*****************/ 74 75 #if !((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \ 76 || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \ 77 || (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \ 78 || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \ 79 || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \ 80 || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \ 81 || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \ 82 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \ 83 || (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \ 84 || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \ 85 || (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \ 86 || (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) \ 87 || (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \ 88 || (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)) 89 #error "An architecture must be selected" 90 #endif 91 92 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \ 93 + (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \ 94 + (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \ 95 + (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \ 96 + (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \ 97 + (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \ 98 + (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \ 99 + (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \ 100 + (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) \ 101 + (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \ 102 + (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \ 103 + (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \ 104 + (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \ 105 + (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) >= 2 106 #error "Multiple architectures are selected" 107 #endif 108 109 /********************************************************/ 110 /* Automatic CPU detection (requires compiler support). */ 111 /********************************************************/ 112 113 #if (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) 114 115 #ifndef _WIN32 116 117 #if defined(__i386__) || defined(__i386) 118 #define SLJIT_CONFIG_X86_32 1 119 #elif defined(__x86_64__) 120 #define SLJIT_CONFIG_X86_64 1 121 #elif defined(__arm__) || defined(__ARM__) 122 #ifdef __thumb2__ 123 #define SLJIT_CONFIG_ARM_THUMB2 1 124 #elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) 125 #define SLJIT_CONFIG_ARM_V7 1 126 #else 127 #define SLJIT_CONFIG_ARM_V5 1 128 #endif 129 #elif defined (__aarch64__) 130 #define SLJIT_CONFIG_ARM_64 1 131 #elif defined(__ppc64__) || defined(__powerpc64__) || defined(_ARCH_PPC64) || (defined(_POWER) && defined(__64BIT__)) 132 #define SLJIT_CONFIG_PPC_64 1 133 #elif defined(__ppc__) || defined(__powerpc__) || defined(_ARCH_PPC) || defined(_ARCH_PWR) || defined(_ARCH_PWR2) || defined(_POWER) 134 #define SLJIT_CONFIG_PPC_32 1 135 #elif defined(__mips__) && !defined(_LP64) 136 #define SLJIT_CONFIG_MIPS_32 1 137 #elif defined(__mips64) 138 #define SLJIT_CONFIG_MIPS_64 1 139 #elif defined(__sparc__) || defined(__sparc) 140 #define SLJIT_CONFIG_SPARC_32 1 141 #elif defined(__tilegx__) 142 #define SLJIT_CONFIG_TILEGX 1 143 #else 144 /* Unsupported architecture */ 145 #define SLJIT_CONFIG_UNSUPPORTED 1 146 #endif 147 148 #else /* !_WIN32 */ 149 150 #if defined(_M_X64) || defined(__x86_64__) 151 #define SLJIT_CONFIG_X86_64 1 152 #elif defined(_ARM_) 153 #define SLJIT_CONFIG_ARM_V5 1 154 #else 155 #define SLJIT_CONFIG_X86_32 1 156 #endif 157 158 #endif /* !WIN32 */ 159 #endif /* SLJIT_CONFIG_AUTO */ 160 161 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) 162 #undef SLJIT_EXECUTABLE_ALLOCATOR 163 #endif 164 165 /******************************/ 166 /* CPU family type detection. */ 167 /******************************/ 168 169 #if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \ 170 || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) 171 #define SLJIT_CONFIG_ARM_32 1 172 #endif 173 174 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 175 #define SLJIT_CONFIG_X86 1 176 #elif (defined SLJIT_CONFIG_ARM_32 && SLJIT_CONFIG_ARM_32) || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) 177 #define SLJIT_CONFIG_ARM 1 178 #elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) 179 #define SLJIT_CONFIG_PPC 1 180 #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 181 #define SLJIT_CONFIG_MIPS 1 182 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) || (defined SLJIT_CONFIG_SPARC_64 && SLJIT_CONFIG_SPARC_64) 183 #define SLJIT_CONFIG_SPARC 1 184 #endif 185 186 /**********************************/ 187 /* External function definitions. */ 188 /**********************************/ 189 190 /* General macros: 191 Note: SLJIT is designed to be independent from them as possible. 192 193 In release mode (SLJIT_DEBUG is not defined) only the following 194 external functions are needed: 195 */ 196 197 #ifndef SLJIT_MALLOC 198 #define SLJIT_MALLOC(size, allocator_data) malloc(size) 199 #endif 200 201 #ifndef SLJIT_FREE 202 #define SLJIT_FREE(ptr, allocator_data) free(ptr) 203 #endif 204 205 #ifndef SLJIT_MEMCPY 206 #define SLJIT_MEMCPY(dest, src, len) memcpy(dest, src, len) 207 #endif 208 209 #ifndef SLJIT_ZEROMEM 210 #define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len) 211 #endif 212 213 /***************************/ 214 /* Compiler helper macros. */ 215 /***************************/ 216 217 #if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) 218 219 #if defined(__GNUC__) && (__GNUC__ >= 3) 220 #define SLJIT_LIKELY(x) __builtin_expect((x), 1) 221 #define SLJIT_UNLIKELY(x) __builtin_expect((x), 0) 222 #else 223 #define SLJIT_LIKELY(x) (x) 224 #define SLJIT_UNLIKELY(x) (x) 225 #endif 226 227 #endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */ 228 229 #ifndef SLJIT_INLINE 230 /* Inline functions. Some old compilers do not support them. */ 231 #if defined(__SUNPRO_C) && __SUNPRO_C <= 0x510 232 #define SLJIT_INLINE 233 #else 234 #define SLJIT_INLINE __inline 235 #endif 236 #endif /* !SLJIT_INLINE */ 237 238 #ifndef SLJIT_NOINLINE 239 /* Not inline functions. */ 240 #if defined(__GNUC__) 241 #define SLJIT_NOINLINE __attribute__ ((noinline)) 242 #else 243 #define SLJIT_NOINLINE 244 #endif 245 #endif /* !SLJIT_INLINE */ 246 247 #ifndef SLJIT_UNUSED_ARG 248 /* Unused arguments. */ 249 #define SLJIT_UNUSED_ARG(arg) (void)arg 250 #endif 251 252 /*********************************/ 253 /* Type of public API functions. */ 254 /*********************************/ 255 256 #if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) 257 /* Static ABI functions. For all-in-one programs. */ 258 259 #if defined(__GNUC__) 260 /* Disable unused warnings in gcc. */ 261 #define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused)) 262 #else 263 #define SLJIT_API_FUNC_ATTRIBUTE static 264 #endif 265 266 #else 267 #define SLJIT_API_FUNC_ATTRIBUTE 268 #endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */ 269 270 /****************************/ 271 /* Instruction cache flush. */ 272 /****************************/ 273 274 #if (!defined SLJIT_CACHE_FLUSH && defined __has_builtin) 275 #if __has_builtin(__builtin___clear_cache) 276 277 #define SLJIT_CACHE_FLUSH(from, to) \ 278 __builtin___clear_cache((char*)from, (char*)to) 279 280 #endif /* __has_builtin(__builtin___clear_cache) */ 281 #endif /* (!defined SLJIT_CACHE_FLUSH && defined __has_builtin) */ 282 283 #ifndef SLJIT_CACHE_FLUSH 284 285 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) 286 287 /* Not required to implement on archs with unified caches. */ 288 #define SLJIT_CACHE_FLUSH(from, to) 289 290 #elif defined __APPLE__ 291 292 /* Supported by all macs since Mac OS 10.5. 293 However, it does not work on non-jailbroken iOS devices, 294 although the compilation is successful. */ 295 296 #define SLJIT_CACHE_FLUSH(from, to) \ 297 sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from)) 298 299 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC) 300 301 /* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */ 302 #define SLJIT_CACHE_FLUSH(from, to) \ 303 ppc_cache_flush((from), (to)) 304 #define SLJIT_CACHE_FLUSH_OWN_IMPL 1 305 306 #elif (defined(__GNUC__) && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) 307 308 #define SLJIT_CACHE_FLUSH(from, to) \ 309 __builtin___clear_cache((char*)from, (char*)to) 310 311 #elif defined __ANDROID__ 312 313 /* Android lacks __clear_cache; instead, cacheflush should be used. */ 314 315 #define SLJIT_CACHE_FLUSH(from, to) \ 316 cacheflush((long)(from), (long)(to), 0) 317 318 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 319 320 /* The __clear_cache() implementation of GCC is a dummy function on Sparc. */ 321 #define SLJIT_CACHE_FLUSH(from, to) \ 322 sparc_cache_flush((from), (to)) 323 #define SLJIT_CACHE_FLUSH_OWN_IMPL 1 324 325 #else 326 327 /* Calls __ARM_NR_cacheflush on ARM-Linux. */ 328 #define SLJIT_CACHE_FLUSH(from, to) \ 329 __clear_cache((char*)(from), (char*)(to)) 330 331 #endif 332 333 #endif /* !SLJIT_CACHE_FLUSH */ 334 335 /******************************************************/ 336 /* Integer and floating point type definitions. */ 337 /******************************************************/ 338 339 /* 8 bit byte type. */ 340 typedef unsigned char sljit_u8; 341 typedef signed char sljit_s8; 342 343 /* 16 bit half-word type. */ 344 typedef unsigned short int sljit_u16; 345 typedef signed short int sljit_s16; 346 347 /* 32 bit integer type. */ 348 typedef unsigned int sljit_u32; 349 typedef signed int sljit_s32; 350 351 /* Machine word type. Enough for storing a pointer. 352 32 bit for 32 bit machines. 353 64 bit for 64 bit machines. */ 354 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) 355 /* Just to have something. */ 356 #define SLJIT_WORD_SHIFT 0 357 typedef unsigned long int sljit_uw; 358 typedef long int sljit_sw; 359 #elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \ 360 && !(defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \ 361 && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \ 362 && !(defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \ 363 && !(defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) 364 #define SLJIT_32BIT_ARCHITECTURE 1 365 #define SLJIT_WORD_SHIFT 2 366 typedef unsigned int sljit_uw; 367 typedef int sljit_sw; 368 #else 369 #define SLJIT_64BIT_ARCHITECTURE 1 370 #define SLJIT_WORD_SHIFT 3 371 #ifdef _WIN32 372 typedef unsigned __int64 sljit_uw; 373 typedef __int64 sljit_sw; 374 #else 375 typedef unsigned long int sljit_uw; 376 typedef long int sljit_sw; 377 #endif 378 #endif 379 380 typedef sljit_uw sljit_p; 381 382 /* Floating point types. */ 383 typedef float sljit_f32; 384 typedef double sljit_f64; 385 386 /* Shift for pointer sized data. */ 387 #define SLJIT_POINTER_SHIFT SLJIT_WORD_SHIFT 388 389 /* Shift for double precision sized data. */ 390 #define SLJIT_F32_SHIFT 2 391 #define SLJIT_F64_SHIFT 3 392 393 #ifndef SLJIT_W 394 395 /* Defining long constants. */ 396 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) 397 #define SLJIT_W(w) (w##l) 398 #elif (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE) 399 #define SLJIT_W(w) (w##ll) 400 #else 401 #define SLJIT_W(w) (w) 402 #endif 403 404 #endif /* !SLJIT_W */ 405 406 /*************************/ 407 /* Endianness detection. */ 408 /*************************/ 409 410 #if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) 411 412 /* These macros are mostly useful for the applications. */ 413 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \ 414 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) 415 416 #ifdef __LITTLE_ENDIAN__ 417 #define SLJIT_LITTLE_ENDIAN 1 418 #else 419 #define SLJIT_BIG_ENDIAN 1 420 #endif 421 422 #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \ 423 || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 424 425 #ifdef __MIPSEL__ 426 #define SLJIT_LITTLE_ENDIAN 1 427 #else 428 #define SLJIT_BIG_ENDIAN 1 429 #endif 430 431 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 432 433 #define SLJIT_BIG_ENDIAN 1 434 435 #else 436 #define SLJIT_LITTLE_ENDIAN 1 437 #endif 438 439 #endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */ 440 441 /* Sanity check. */ 442 #if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN) 443 #error "Exactly one endianness must be selected" 444 #endif 445 446 #if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN) 447 #error "Exactly one endianness must be selected" 448 #endif 449 450 #ifndef SLJIT_UNALIGNED 451 452 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \ 453 || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \ 454 || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \ 455 || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \ 456 || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \ 457 || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \ 458 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) 459 #define SLJIT_UNALIGNED 1 460 #endif 461 462 #endif /* !SLJIT_UNALIGNED */ 463 464 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) 465 /* Auto detect SSE2 support using CPUID. 466 On 64 bit x86 cpus, sse2 must be present. */ 467 #define SLJIT_DETECT_SSE2 1 468 #endif 469 470 /*****************************************************************************************/ 471 /* Calling convention of functions generated by SLJIT or called from the generated code. */ 472 /*****************************************************************************************/ 473 474 #ifndef SLJIT_CALL 475 476 #if (defined SLJIT_USE_CDECL_CALLING_CONVENTION && SLJIT_USE_CDECL_CALLING_CONVENTION) 477 478 /* Force cdecl. */ 479 #define SLJIT_CALL 480 481 #elif (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) 482 483 #if defined(__GNUC__) && !defined(__APPLE__) 484 485 #define SLJIT_CALL __attribute__ ((fastcall)) 486 #define SLJIT_X86_32_FASTCALL 1 487 488 #elif defined(_MSC_VER) 489 490 #define SLJIT_CALL __fastcall 491 #define SLJIT_X86_32_FASTCALL 1 492 493 #elif defined(__BORLANDC__) 494 495 #define SLJIT_CALL __msfastcall 496 #define SLJIT_X86_32_FASTCALL 1 497 498 #else /* Unknown compiler. */ 499 500 /* The cdecl attribute is the default. */ 501 #define SLJIT_CALL 502 503 #endif 504 505 #else /* Non x86-32 architectures. */ 506 507 #define SLJIT_CALL 508 509 #endif /* SLJIT_CONFIG_X86_32 */ 510 511 #endif /* !SLJIT_CALL */ 512 513 #ifndef SLJIT_INDIRECT_CALL 514 #if ((defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) && (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN)) \ 515 || ((defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) && defined _AIX) 516 /* It seems certain ppc compilers use an indirect addressing for functions 517 which makes things complicated. */ 518 #define SLJIT_INDIRECT_CALL 1 519 #endif 520 #endif /* SLJIT_INDIRECT_CALL */ 521 522 /* The offset which needs to be substracted from the return address to 523 determine the next executed instruction after return. */ 524 #ifndef SLJIT_RETURN_ADDRESS_OFFSET 525 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 526 #define SLJIT_RETURN_ADDRESS_OFFSET 8 527 #else 528 #define SLJIT_RETURN_ADDRESS_OFFSET 0 529 #endif 530 #endif /* SLJIT_RETURN_ADDRESS_OFFSET */ 531 532 /***************************************************/ 533 /* Functions of the built-in executable allocator. */ 534 /***************************************************/ 535 536 #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR) 537 SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size); 538 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr); 539 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void); 540 #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size) 541 #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr) 542 543 #if (defined SLJIT_PROT_EXECUTABLE_ALLOCATOR && SLJIT_PROT_EXECUTABLE_ALLOCATOR) 544 SLJIT_API_FUNC_ATTRIBUTE sljit_sw sljit_exec_offset(void* ptr); 545 #define SLJIT_EXEC_OFFSET(ptr) sljit_exec_offset(ptr) 546 #else 547 #define SLJIT_EXEC_OFFSET(ptr) 0 548 #endif 549 550 #endif 551 552 /**********************************************/ 553 /* Registers and locals offset determination. */ 554 /**********************************************/ 555 556 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) 557 558 #define SLJIT_NUMBER_OF_REGISTERS 12 559 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 9 560 #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL) 561 #define SLJIT_LOCALS_OFFSET_BASE (compiler->locals_offset) 562 #else 563 /* Maximum 3 arguments are passed on the stack, +1 for double alignment. */ 564 #define SLJIT_LOCALS_OFFSET_BASE (compiler->locals_offset) 565 #endif /* SLJIT_X86_32_FASTCALL */ 566 567 #elif (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 568 569 #ifndef _WIN64 570 #define SLJIT_NUMBER_OF_REGISTERS 13 571 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 6 572 #define SLJIT_LOCALS_OFFSET_BASE 0 573 #else 574 #define SLJIT_NUMBER_OF_REGISTERS 13 575 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 576 #define SLJIT_LOCALS_OFFSET_BASE (compiler->locals_offset) 577 #endif /* _WIN64 */ 578 579 #elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) 580 581 #define SLJIT_NUMBER_OF_REGISTERS 12 582 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 583 #define SLJIT_LOCALS_OFFSET_BASE 0 584 585 #elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) 586 587 #define SLJIT_NUMBER_OF_REGISTERS 12 588 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 589 #define SLJIT_LOCALS_OFFSET_BASE 0 590 591 #elif (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) 592 593 #define SLJIT_NUMBER_OF_REGISTERS 25 594 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 10 595 #define SLJIT_LOCALS_OFFSET_BASE (2 * sizeof(sljit_sw)) 596 597 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC) 598 599 #define SLJIT_NUMBER_OF_REGISTERS 22 600 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 17 601 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) || (defined _AIX) 602 #define SLJIT_LOCALS_OFFSET_BASE ((6 + 8) * sizeof(sljit_sw)) 603 #elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) 604 /* Add +1 for double alignment. */ 605 #define SLJIT_LOCALS_OFFSET_BASE ((3 + 1) * sizeof(sljit_sw)) 606 #else 607 #define SLJIT_LOCALS_OFFSET_BASE (3 * sizeof(sljit_sw)) 608 #endif /* SLJIT_CONFIG_PPC_64 || _AIX */ 609 610 #elif (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS) 611 612 #define SLJIT_NUMBER_OF_REGISTERS 21 613 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 614 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 615 #define SLJIT_LOCALS_OFFSET_BASE (4 * sizeof(sljit_sw)) 616 #else 617 #define SLJIT_LOCALS_OFFSET_BASE 0 618 #endif 619 620 #elif (defined SLJIT_CONFIG_SPARC && SLJIT_CONFIG_SPARC) 621 622 #define SLJIT_NUMBER_OF_REGISTERS 18 623 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 14 624 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 625 /* Add +1 for double alignment. */ 626 #define SLJIT_LOCALS_OFFSET_BASE ((23 + 1) * sizeof(sljit_sw)) 627 #endif 628 629 #elif (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) 630 631 #define SLJIT_NUMBER_OF_REGISTERS 10 632 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 5 633 #define SLJIT_LOCALS_OFFSET_BASE 0 634 635 #elif (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) 636 637 #define SLJIT_NUMBER_OF_REGISTERS 0 638 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 0 639 #define SLJIT_LOCALS_OFFSET_BASE 0 640 641 #endif 642 643 #define SLJIT_LOCALS_OFFSET (SLJIT_LOCALS_OFFSET_BASE) 644 645 #define SLJIT_NUMBER_OF_SCRATCH_REGISTERS \ 646 (SLJIT_NUMBER_OF_REGISTERS - SLJIT_NUMBER_OF_SAVED_REGISTERS) 647 648 #define SLJIT_NUMBER_OF_FLOAT_REGISTERS 6 649 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && (defined _WIN64) 650 #define SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS 1 651 #else 652 #define SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS 0 653 #endif 654 655 #define SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS \ 656 (SLJIT_NUMBER_OF_FLOAT_REGISTERS - SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS) 657 658 /*************************************/ 659 /* Debug and verbose related macros. */ 660 /*************************************/ 661 662 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) 663 #include <stdio.h> 664 #endif 665 666 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) 667 668 #if !defined(SLJIT_ASSERT) || !defined(SLJIT_UNREACHABLE) 669 670 /* SLJIT_HALT_PROCESS must halt the process. */ 671 #ifndef SLJIT_HALT_PROCESS 672 #include <stdlib.h> 673 674 #define SLJIT_HALT_PROCESS() \ 675 abort(); 676 #endif /* !SLJIT_HALT_PROCESS */ 677 678 #include <stdio.h> 679 680 #endif /* !SLJIT_ASSERT || !SLJIT_UNREACHABLE */ 681 682 /* Feel free to redefine these two macros. */ 683 #ifndef SLJIT_ASSERT 684 685 #define SLJIT_ASSERT(x) \ 686 do { \ 687 if (SLJIT_UNLIKELY(!(x))) { \ 688 printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \ 689 SLJIT_HALT_PROCESS(); \ 690 } \ 691 } while (0) 692 693 #endif /* !SLJIT_ASSERT */ 694 695 #ifndef SLJIT_UNREACHABLE 696 697 #define SLJIT_UNREACHABLE() \ 698 do { \ 699 printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \ 700 SLJIT_HALT_PROCESS(); \ 701 } while (0) 702 703 #endif /* !SLJIT_UNREACHABLE */ 704 705 #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */ 706 707 /* Forcing empty, but valid statements. */ 708 #undef SLJIT_ASSERT 709 #undef SLJIT_UNREACHABLE 710 711 #define SLJIT_ASSERT(x) \ 712 do { } while (0) 713 #define SLJIT_UNREACHABLE() \ 714 do { } while (0) 715 716 #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */ 717 718 #ifndef SLJIT_COMPILE_ASSERT 719 720 #define SLJIT_COMPILE_ASSERT(x, description) \ 721 switch(0) { case 0: case ((x) ? 1 : 0): break; } 722 723 #endif /* !SLJIT_COMPILE_ASSERT */ 724 725 #endif 726
