1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright 2009-2012 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 #if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED) 191 192 /* These libraries are needed for the macros below. */ 193 #include <stdlib.h> 194 #include <string.h> 195 196 #endif /* SLJIT_STD_MACROS_DEFINED */ 197 198 /* General macros: 199 Note: SLJIT is designed to be independent from them as possible. 200 201 In release mode (SLJIT_DEBUG is not defined) only the following 202 external functions are needed: 203 */ 204 205 #ifndef SLJIT_MALLOC 206 #define SLJIT_MALLOC(size, allocator_data) malloc(size) 207 #endif 208 209 #ifndef SLJIT_FREE 210 #define SLJIT_FREE(ptr, allocator_data) free(ptr) 211 #endif 212 213 #ifndef SLJIT_MEMCPY 214 #define SLJIT_MEMCPY(dest, src, len) memcpy(dest, src, len) 215 #endif 216 217 #ifndef SLJIT_ZEROMEM 218 #define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len) 219 #endif 220 221 /***************************/ 222 /* Compiler helper macros. */ 223 /***************************/ 224 225 #if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) 226 227 #if defined(__GNUC__) && (__GNUC__ >= 3) 228 #define SLJIT_LIKELY(x) __builtin_expect((x), 1) 229 #define SLJIT_UNLIKELY(x) __builtin_expect((x), 0) 230 #else 231 #define SLJIT_LIKELY(x) (x) 232 #define SLJIT_UNLIKELY(x) (x) 233 #endif 234 235 #endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */ 236 237 #ifndef SLJIT_INLINE 238 /* Inline functions. Some old compilers do not support them. */ 239 #if defined(__SUNPRO_C) && __SUNPRO_C <= 0x510 240 #define SLJIT_INLINE 241 #else 242 #define SLJIT_INLINE __inline 243 #endif 244 #endif /* !SLJIT_INLINE */ 245 246 #ifndef SLJIT_NOINLINE 247 /* Not inline functions. */ 248 #if defined(__GNUC__) 249 #define SLJIT_NOINLINE __attribute__ ((noinline)) 250 #else 251 #define SLJIT_NOINLINE 252 #endif 253 #endif /* !SLJIT_INLINE */ 254 255 #ifndef SLJIT_UNUSED_ARG 256 /* Unused arguments. */ 257 #define SLJIT_UNUSED_ARG(arg) (void)arg 258 #endif 259 260 /*********************************/ 261 /* Type of public API functions. */ 262 /*********************************/ 263 264 #if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) 265 /* Static ABI functions. For all-in-one programs. */ 266 267 #if defined(__GNUC__) 268 /* Disable unused warnings in gcc. */ 269 #define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused)) 270 #else 271 #define SLJIT_API_FUNC_ATTRIBUTE static 272 #endif 273 274 #else 275 #define SLJIT_API_FUNC_ATTRIBUTE 276 #endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */ 277 278 /****************************/ 279 /* Instruction cache flush. */ 280 /****************************/ 281 282 #if (!defined SLJIT_CACHE_FLUSH && defined __has_builtin) 283 #if __has_builtin(__builtin___clear_cache) 284 285 #define SLJIT_CACHE_FLUSH(from, to) \ 286 __builtin___clear_cache((char*)from, (char*)to) 287 288 #endif /* __has_builtin(__builtin___clear_cache) */ 289 #endif /* (!defined SLJIT_CACHE_FLUSH && defined __has_builtin) */ 290 291 #ifndef SLJIT_CACHE_FLUSH 292 293 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) 294 295 /* Not required to implement on archs with unified caches. */ 296 #define SLJIT_CACHE_FLUSH(from, to) 297 298 #elif defined __APPLE__ 299 300 /* Supported by all macs since Mac OS 10.5. 301 However, it does not work on non-jailbroken iOS devices, 302 although the compilation is successful. */ 303 304 #define SLJIT_CACHE_FLUSH(from, to) \ 305 sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from)) 306 307 #elif (defined(__GNUC__) && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) 308 309 #define SLJIT_CACHE_FLUSH(from, to) \ 310 __builtin___clear_cache((char*)from, (char*)to) 311 312 #elif defined __ANDROID__ 313 314 /* Android lacks __clear_cache; instead, cacheflush should be used. */ 315 316 #define SLJIT_CACHE_FLUSH(from, to) \ 317 cacheflush((long)(from), (long)(to), 0) 318 319 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC) 320 321 /* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */ 322 #define SLJIT_CACHE_FLUSH(from, to) \ 323 ppc_cache_flush((from), (to)) 324 #define SLJIT_CACHE_FLUSH_OWN_IMPL 1 325 326 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 327 328 /* The __clear_cache() implementation of GCC is a dummy function on Sparc. */ 329 #define SLJIT_CACHE_FLUSH(from, to) \ 330 sparc_cache_flush((from), (to)) 331 #define SLJIT_CACHE_FLUSH_OWN_IMPL 1 332 333 #else 334 335 /* Calls __ARM_NR_cacheflush on ARM-Linux. */ 336 #define SLJIT_CACHE_FLUSH(from, to) \ 337 __clear_cache((char*)(from), (char*)(to)) 338 339 #endif 340 341 #endif /* !SLJIT_CACHE_FLUSH */ 342 343 /******************************************************/ 344 /* Integer and floating point type definitions. */ 345 /******************************************************/ 346 347 /* 8 bit byte type. */ 348 typedef unsigned char sljit_u8; 349 typedef signed char sljit_s8; 350 351 /* 16 bit half-word type. */ 352 typedef unsigned short int sljit_u16; 353 typedef signed short int sljit_s16; 354 355 /* 32 bit integer type. */ 356 typedef unsigned int sljit_u32; 357 typedef signed int sljit_s32; 358 359 /* Machine word type. Enough for storing a pointer. 360 32 bit for 32 bit machines. 361 64 bit for 64 bit machines. */ 362 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) 363 /* Just to have something. */ 364 #define SLJIT_WORD_SHIFT 0 365 typedef unsigned long int sljit_uw; 366 typedef long int sljit_sw; 367 #elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \ 368 && !(defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \ 369 && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \ 370 && !(defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \ 371 && !(defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) 372 #define SLJIT_32BIT_ARCHITECTURE 1 373 #define SLJIT_WORD_SHIFT 2 374 typedef unsigned int sljit_uw; 375 typedef int sljit_sw; 376 #else 377 #define SLJIT_64BIT_ARCHITECTURE 1 378 #define SLJIT_WORD_SHIFT 3 379 #ifdef _WIN32 380 typedef unsigned __int64 sljit_uw; 381 typedef __int64 sljit_sw; 382 #else 383 typedef unsigned long int sljit_uw; 384 typedef long int sljit_sw; 385 #endif 386 #endif 387 388 typedef sljit_uw sljit_p; 389 390 /* Floating point types. */ 391 typedef float sljit_f32; 392 typedef double sljit_f64; 393 394 /* Shift for pointer sized data. */ 395 #define SLJIT_POINTER_SHIFT SLJIT_WORD_SHIFT 396 397 /* Shift for double precision sized data. */ 398 #define SLJIT_F32_SHIFT 2 399 #define SLJIT_F64_SHIFT 3 400 401 #ifndef SLJIT_W 402 403 /* Defining long constants. */ 404 #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE) 405 #define SLJIT_W(w) (w##ll) 406 #else 407 #define SLJIT_W(w) (w) 408 #endif 409 410 #endif /* !SLJIT_W */ 411 412 /*************************/ 413 /* Endianness detection. */ 414 /*************************/ 415 416 #if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) 417 418 /* These macros are mostly useful for the applications. */ 419 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \ 420 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) 421 422 #ifdef __LITTLE_ENDIAN__ 423 #define SLJIT_LITTLE_ENDIAN 1 424 #else 425 #define SLJIT_BIG_ENDIAN 1 426 #endif 427 428 #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \ 429 || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) 430 431 #ifdef __MIPSEL__ 432 #define SLJIT_LITTLE_ENDIAN 1 433 #else 434 #define SLJIT_BIG_ENDIAN 1 435 #endif 436 437 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 438 439 #define SLJIT_BIG_ENDIAN 1 440 441 #else 442 #define SLJIT_LITTLE_ENDIAN 1 443 #endif 444 445 #endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */ 446 447 /* Sanity check. */ 448 #if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN) 449 #error "Exactly one endianness must be selected" 450 #endif 451 452 #if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN) 453 #error "Exactly one endianness must be selected" 454 #endif 455 456 #ifndef SLJIT_UNALIGNED 457 458 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \ 459 || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \ 460 || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \ 461 || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \ 462 || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \ 463 || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \ 464 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) 465 #define SLJIT_UNALIGNED 1 466 #endif 467 468 #endif /* !SLJIT_UNALIGNED */ 469 470 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) 471 /* Auto detect SSE2 support using CPUID. 472 On 64 bit x86 cpus, sse2 must be present. */ 473 #define SLJIT_DETECT_SSE2 1 474 #endif 475 476 /*****************************************************************************************/ 477 /* Calling convention of functions generated by SLJIT or called from the generated code. */ 478 /*****************************************************************************************/ 479 480 #ifndef SLJIT_CALL 481 482 #if (defined SLJIT_USE_CDECL_CALLING_CONVENTION && SLJIT_USE_CDECL_CALLING_CONVENTION) 483 484 /* Force cdecl. */ 485 #define SLJIT_CALL 486 487 #elif (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) 488 489 #if defined(__GNUC__) && !defined(__APPLE__) 490 491 #define SLJIT_CALL __attribute__ ((fastcall)) 492 #define SLJIT_X86_32_FASTCALL 1 493 494 #elif defined(_MSC_VER) 495 496 #define SLJIT_CALL __fastcall 497 #define SLJIT_X86_32_FASTCALL 1 498 499 #elif defined(__BORLANDC__) 500 501 #define SLJIT_CALL __msfastcall 502 #define SLJIT_X86_32_FASTCALL 1 503 504 #else /* Unknown compiler. */ 505 506 /* The cdecl attribute is the default. */ 507 #define SLJIT_CALL 508 509 #endif 510 511 #else /* Non x86-32 architectures. */ 512 513 #define SLJIT_CALL 514 515 #endif /* SLJIT_CONFIG_X86_32 */ 516 517 #endif /* !SLJIT_CALL */ 518 519 #ifndef SLJIT_INDIRECT_CALL 520 #if ((defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) && (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN)) \ 521 || ((defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) && defined _AIX) 522 /* It seems certain ppc compilers use an indirect addressing for functions 523 which makes things complicated. */ 524 #define SLJIT_INDIRECT_CALL 1 525 #endif 526 #endif /* SLJIT_INDIRECT_CALL */ 527 528 /* The offset which needs to be substracted from the return address to 529 determine the next executed instruction after return. */ 530 #ifndef SLJIT_RETURN_ADDRESS_OFFSET 531 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 532 #define SLJIT_RETURN_ADDRESS_OFFSET 8 533 #else 534 #define SLJIT_RETURN_ADDRESS_OFFSET 0 535 #endif 536 #endif /* SLJIT_RETURN_ADDRESS_OFFSET */ 537 538 /***************************************************/ 539 /* Functions of the built-in executable allocator. */ 540 /***************************************************/ 541 542 #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR) 543 SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size); 544 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr); 545 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void); 546 #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size) 547 #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr) 548 #endif 549 550 /**********************************************/ 551 /* Registers and locals offset determination. */ 552 /**********************************************/ 553 554 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) 555 556 #define SLJIT_NUMBER_OF_REGISTERS 10 557 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 7 558 #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL) 559 #define SLJIT_LOCALS_OFFSET_BASE ((2 + 4) * sizeof(sljit_sw)) 560 #else 561 /* Maximum 3 arguments are passed on the stack, +1 for double alignment. */ 562 #define SLJIT_LOCALS_OFFSET_BASE ((3 + 1 + 4) * sizeof(sljit_sw)) 563 #endif /* SLJIT_X86_32_FASTCALL */ 564 565 #elif (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) 566 567 #ifndef _WIN64 568 #define SLJIT_NUMBER_OF_REGISTERS 12 569 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 6 570 #define SLJIT_LOCALS_OFFSET_BASE (sizeof(sljit_sw)) 571 #else 572 #define SLJIT_NUMBER_OF_REGISTERS 12 573 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 574 #define SLJIT_LOCALS_OFFSET_BASE ((4 + 2) * sizeof(sljit_sw)) 575 #endif /* _WIN64 */ 576 577 #elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) 578 579 #define SLJIT_NUMBER_OF_REGISTERS 11 580 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 581 #define SLJIT_LOCALS_OFFSET_BASE 0 582 583 #elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) 584 585 #define SLJIT_NUMBER_OF_REGISTERS 11 586 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 7 587 #define SLJIT_LOCALS_OFFSET_BASE 0 588 589 #elif (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) 590 591 #define SLJIT_NUMBER_OF_REGISTERS 25 592 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 10 593 #define SLJIT_LOCALS_OFFSET_BASE (2 * sizeof(sljit_sw)) 594 595 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC) 596 597 #define SLJIT_NUMBER_OF_REGISTERS 22 598 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 17 599 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) || (defined _AIX) 600 #define SLJIT_LOCALS_OFFSET_BASE ((6 + 8) * sizeof(sljit_sw)) 601 #elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) 602 /* Add +1 for double alignment. */ 603 #define SLJIT_LOCALS_OFFSET_BASE ((3 + 1) * sizeof(sljit_sw)) 604 #else 605 #define SLJIT_LOCALS_OFFSET_BASE (3 * sizeof(sljit_sw)) 606 #endif /* SLJIT_CONFIG_PPC_64 || _AIX */ 607 608 #elif (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS) 609 610 #define SLJIT_NUMBER_OF_REGISTERS 17 611 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8 612 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) 613 #define SLJIT_LOCALS_OFFSET_BASE (4 * sizeof(sljit_sw)) 614 #else 615 #define SLJIT_LOCALS_OFFSET_BASE 0 616 #endif 617 618 #elif (defined SLJIT_CONFIG_SPARC && SLJIT_CONFIG_SPARC) 619 620 #define SLJIT_NUMBER_OF_REGISTERS 18 621 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 14 622 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) 623 /* Add +1 for double alignment. */ 624 #define SLJIT_LOCALS_OFFSET_BASE ((23 + 1) * sizeof(sljit_sw)) 625 #endif 626 627 #elif (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) 628 629 #define SLJIT_NUMBER_OF_REGISTERS 10 630 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 5 631 #define SLJIT_LOCALS_OFFSET_BASE 0 632 633 #elif (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) 634 635 #define SLJIT_NUMBER_OF_REGISTERS 0 636 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 0 637 #define SLJIT_LOCALS_OFFSET_BASE 0 638 639 #endif 640 641 #define SLJIT_LOCALS_OFFSET (SLJIT_LOCALS_OFFSET_BASE) 642 643 #define SLJIT_NUMBER_OF_SCRATCH_REGISTERS \ 644 (SLJIT_NUMBER_OF_REGISTERS - SLJIT_NUMBER_OF_SAVED_REGISTERS) 645 646 #define SLJIT_NUMBER_OF_FLOAT_REGISTERS 6 647 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && (defined _WIN64) 648 #define SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS 1 649 #else 650 #define SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS 0 651 #endif 652 653 #define SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS \ 654 (SLJIT_NUMBER_OF_FLOAT_REGISTERS - SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS) 655 656 /*************************************/ 657 /* Debug and verbose related macros. */ 658 /*************************************/ 659 660 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) 661 #include <stdio.h> 662 #endif 663 664 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) 665 666 #if !defined(SLJIT_ASSERT) || !defined(SLJIT_ASSERT_STOP) 667 668 /* SLJIT_HALT_PROCESS must halt the process. */ 669 #ifndef SLJIT_HALT_PROCESS 670 #include <stdlib.h> 671 672 #define SLJIT_HALT_PROCESS() \ 673 abort(); 674 #endif /* !SLJIT_HALT_PROCESS */ 675 676 #include <stdio.h> 677 678 #endif /* !SLJIT_ASSERT || !SLJIT_ASSERT_STOP */ 679 680 /* Feel free to redefine these two macros. */ 681 #ifndef SLJIT_ASSERT 682 683 #define SLJIT_ASSERT(x) \ 684 do { \ 685 if (SLJIT_UNLIKELY(!(x))) { \ 686 printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \ 687 SLJIT_HALT_PROCESS(); \ 688 } \ 689 } while (0) 690 691 #endif /* !SLJIT_ASSERT */ 692 693 #ifndef SLJIT_ASSERT_STOP 694 695 #define SLJIT_ASSERT_STOP() \ 696 do { \ 697 printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \ 698 SLJIT_HALT_PROCESS(); \ 699 } while (0) 700 701 #endif /* !SLJIT_ASSERT_STOP */ 702 703 #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */ 704 705 /* Forcing empty, but valid statements. */ 706 #undef SLJIT_ASSERT 707 #undef SLJIT_ASSERT_STOP 708 709 #define SLJIT_ASSERT(x) \ 710 do { } while (0) 711 #define SLJIT_ASSERT_STOP() \ 712 do { } while (0) 713 714 #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */ 715 716 #ifndef SLJIT_COMPILE_ASSERT 717 718 /* Should be improved eventually. */ 719 #define SLJIT_COMPILE_ASSERT(x, description) \ 720 SLJIT_ASSERT(x) 721 722 #endif /* !SLJIT_COMPILE_ASSERT */ 723 724 #endif 725