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src/lj_arch.h - luajit-2.0-src

Macros defined

Source code

  1. /*
  2. ** Target architecture selection.
  3. ** Copyright (C) 2005-2015 Mike Pall. See Copyright Notice in luajit.h
  4. */

  6. #ifndef _LJ_ARCH_H
  7. ‌#define _LJ_ARCH_H

  9. #include "lua.h"

  11. /* Target endianess. */
  12. ‌#define LUAJIT_LE        0
  13. ‌#define LUAJIT_BE        1

  15. /* Target architectures. */
  16. ‌#define LUAJIT_ARCH_X86                1
  17. ‌#define LUAJIT_ARCH_x86                1
  18. ‌#define LUAJIT_ARCH_X64                2
  19. ‌#define LUAJIT_ARCH_x64                2
  20. ‌#define LUAJIT_ARCH_ARM                3
  21. ‌#define LUAJIT_ARCH_arm                3
  22. ‌#define LUAJIT_ARCH_ARM64        4
  23. ‌#define LUAJIT_ARCH_arm64        4
  24. ‌#define LUAJIT_ARCH_PPC                5
  25. ‌#define LUAJIT_ARCH_ppc                5
  26. ‌#define LUAJIT_ARCH_MIPS        6
  27. ‌#define LUAJIT_ARCH_mips        6

  29. /* Target OS. */
  30. ‌#define LUAJIT_OS_OTHER                0
  31. ‌#define LUAJIT_OS_WINDOWS        1
  32. ‌#define LUAJIT_OS_LINUX                2
  33. ‌#define LUAJIT_OS_OSX                3
  34. ‌#define LUAJIT_OS_BSD                4
  35. ‌#define LUAJIT_OS_POSIX                5

  37. /* Select native target if no target defined. */
  38. #ifndef LUAJIT_TARGET

  40. #if defined(__i386) || defined(__i386__) || defined(_M_IX86)
  41. ‌#define LUAJIT_TARGET        LUAJIT_ARCH_X86
  42. #elif defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
  43. ‌#define LUAJIT_TARGET        LUAJIT_ARCH_X64
  44. #elif defined(__arm__) || defined(__arm) || defined(__ARM__) || defined(__ARM)
  45. ‌#define LUAJIT_TARGET        LUAJIT_ARCH_ARM
  46. #elif defined(__aarch64__)
  47. ‌#define LUAJIT_TARGET        LUAJIT_ARCH_ARM64
  48. #elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
  49. ‌#define LUAJIT_TARGET        LUAJIT_ARCH_PPC
  50. #elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
  51. ‌#define LUAJIT_TARGET        LUAJIT_ARCH_MIPS
  52. #else
  53. #error "No support for this architecture (yet)"
  54. #endif

  56. #endif

  58. /* Select native OS if no target OS defined. */
  59. #ifndef LUAJIT_OS

  61. #if defined(_WIN32) && !defined(_XBOX_VER)
  62. ‌#define LUAJIT_OS        LUAJIT_OS_WINDOWS
  63. #elif defined(__linux__)
  64. ‌#define LUAJIT_OS        LUAJIT_OS_LINUX
  65. #elif defined(__MACH__) && defined(__APPLE__)
  66. ‌#define LUAJIT_OS        LUAJIT_OS_OSX
  67. #elif (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
  68.        defined(__NetBSD__) || defined(__OpenBSD__) || \
  69.        defined(__DragonFly__)) && !defined(__ORBIS__)
  70. ‌#define LUAJIT_OS        LUAJIT_OS_BSD
  71. #elif (defined(__sun__) && defined(__svr4__)) || defined(__CYGWIN__)
  72. ‌#define LUAJIT_OS        LUAJIT_OS_POSIX
  73. #else
  74. ‌#define LUAJIT_OS        LUAJIT_OS_OTHER
  75. #endif

  77. #endif

  79. /* Set target OS properties. */
  80. #if LUAJIT_OS == LUAJIT_OS_WINDOWS
  81. ‌#define LJ_OS_NAME        "Windows"
  82. #elif LUAJIT_OS == LUAJIT_OS_LINUX
  83. ‌#define LJ_OS_NAME        "Linux"
  84. #elif LUAJIT_OS == LUAJIT_OS_OSX
  85. ‌#define LJ_OS_NAME        "OSX"
  86. #elif LUAJIT_OS == LUAJIT_OS_BSD
  87. ‌#define LJ_OS_NAME        "BSD"
  88. #elif LUAJIT_OS == LUAJIT_OS_POSIX
  89. ‌#define LJ_OS_NAME        "POSIX"
  90. #else
  91. ‌#define LJ_OS_NAME        "Other"
  92. #endif

  94. ‌#define LJ_TARGET_WINDOWS        (LUAJIT_OS == LUAJIT_OS_WINDOWS)
  95. ‌#define LJ_TARGET_LINUX                (LUAJIT_OS == LUAJIT_OS_LINUX)
  96. ‌#define LJ_TARGET_OSX                (LUAJIT_OS == LUAJIT_OS_OSX)
  97. ‌#define LJ_TARGET_IOS                (LJ_TARGET_OSX && (LUAJIT_TARGET == LUAJIT_ARCH_ARM || LUAJIT_TARGET == LUAJIT_ARCH_ARM64))
  98. ‌#define LJ_TARGET_POSIX                (LUAJIT_OS > LUAJIT_OS_WINDOWS)
  99. ‌#define LJ_TARGET_DLOPEN        LJ_TARGET_POSIX

  101. #ifdef __CELLOS_LV2__
  102. ‌#define LJ_TARGET_PS3                1
  103. ‌#define LJ_TARGET_CONSOLE        1
  104. #endif

  106. #ifdef __ORBIS__
  107. ‌#define LJ_TARGET_PS4                1
  108. ‌#define LJ_TARGET_CONSOLE        1
  109. ‌#undef NULL
  110. ‌#define NULL ((void*)0)
  111. #endif

  113. #ifdef __psp2__
  114. ‌#define LJ_TARGET_PSVITA        1
  115. ‌#define LJ_TARGET_CONSOLE        1
  116. #endif

  118. #if _XBOX_VER >= 200
  119. ‌#define LJ_TARGET_XBOX360        1
  120. ‌#define LJ_TARGET_CONSOLE        1
  121. #endif

  123. ‌#define LJ_NUMMODE_SINGLE        0        /* Single-number mode only. */
  124. ‌#define LJ_NUMMODE_SINGLE_DUAL        1        /* Default to single-number mode. */
  125. ‌#define LJ_NUMMODE_DUAL                2        /* Dual-number mode only. */
  126. ‌#define LJ_NUMMODE_DUAL_SINGLE        3        /* Default to dual-number mode. */

  128. /* Set target architecture properties. */
  129. #if LUAJIT_TARGET == LUAJIT_ARCH_X86

  131. ‌#define LJ_ARCH_NAME                "x86"
  132. ‌#define LJ_ARCH_BITS                32
  133. ‌#define LJ_ARCH_ENDIAN                LUAJIT_LE
  134. #if LJ_TARGET_WINDOWS || __CYGWIN__
  135. ‌#define LJ_ABI_WIN                1
  136. #else
  137. ‌#define LJ_ABI_WIN                0
  138. #endif
  139. ‌#define LJ_TARGET_X86                1
  140. ‌#define LJ_TARGET_X86ORX64        1
  141. ‌#define LJ_TARGET_EHRETREG        0
  142. ‌#define LJ_TARGET_MASKSHIFT        1
  143. ‌#define LJ_TARGET_MASKROT        1
  144. ‌#define LJ_TARGET_UNALIGNED        1
  145. ‌#define LJ_ARCH_NUMMODE                LJ_NUMMODE_SINGLE_DUAL

  147. #elif LUAJIT_TARGET == LUAJIT_ARCH_X64

  149. ‌#define LJ_ARCH_NAME                "x64"
  150. ‌#define LJ_ARCH_BITS                64
  151. ‌#define LJ_ARCH_ENDIAN                LUAJIT_LE
  152. ‌#define LJ_ABI_WIN                LJ_TARGET_WINDOWS
  153. ‌#define LJ_TARGET_X64                1
  154. ‌#define LJ_TARGET_X86ORX64        1
  155. ‌#define LJ_TARGET_EHRETREG        0
  156. ‌#define LJ_TARGET_JUMPRANGE        31        /* +-2^31 = +-2GB */
  157. ‌#define LJ_TARGET_MASKSHIFT        1
  158. ‌#define LJ_TARGET_MASKROT        1
  159. ‌#define LJ_TARGET_UNALIGNED        1
  160. ‌#define LJ_ARCH_NUMMODE                LJ_NUMMODE_SINGLE_DUAL

  162. #elif LUAJIT_TARGET == LUAJIT_ARCH_ARM

  164. ‌#define LJ_ARCH_NAME                "arm"
  165. ‌#define LJ_ARCH_BITS                32
  166. ‌#define LJ_ARCH_ENDIAN                LUAJIT_LE
  167. #if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
  168. ‌#define LJ_ARCH_HASFPU                0
  169. #endif
  170. #if !defined(LJ_ABI_SOFTFP) && !__ARM_PCS_VFP
  171. ‌#define LJ_ABI_SOFTFP                1
  172. #endif
  173. ‌#define LJ_ABI_EABI                1
  174. ‌#define LJ_TARGET_ARM                1
  175. ‌#define LJ_TARGET_EHRETREG        0
  176. ‌#define LJ_TARGET_JUMPRANGE        25        /* +-2^25 = +-32MB */
  177. ‌#define LJ_TARGET_MASKSHIFT        0
  178. ‌#define LJ_TARGET_MASKROT        1
  179. ‌#define LJ_TARGET_UNIFYROT        2        /* Want only IR_BROR. */
  180. ‌#define LJ_ARCH_NUMMODE                LJ_NUMMODE_DUAL

  182. #if __ARM_ARCH____ARM_ARCH_8__ || __ARM_ARCH_8A__
  183. ‌#define LJ_ARCH_VERSION                80
  184. #elif __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__ || __ARM_ARCH_7VE__
  185. ‌#define LJ_ARCH_VERSION                70
  186. #elif __ARM_ARCH_6T2__
  187. ‌#define LJ_ARCH_VERSION                61
  188. #elif __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6K__ || __ARM_ARCH_6Z__ || __ARM_ARCH_6ZK__
  189. ‌#define LJ_ARCH_VERSION                60
  190. #else
  191. ‌#define LJ_ARCH_VERSION                50
  192. #endif

  194. #elif LUAJIT_TARGET == LUAJIT_ARCH_ARM64

  196. ‌#define LJ_ARCH_NAME                "arm64"
  197. ‌#define LJ_ARCH_BITS                64
  198. ‌#define LJ_ARCH_ENDIAN                LUAJIT_LE
  199. ‌#define LJ_TARGET_ARM64                1
  200. ‌#define LJ_TARGET_EHRETREG        0
  201. ‌#define LJ_TARGET_JUMPRANGE        27        /* +-2^27 = +-128MB */
  202. ‌#define LJ_TARGET_MASKSHIFT        1
  203. ‌#define LJ_TARGET_MASKROT        1
  204. ‌#define LJ_TARGET_UNIFYROT        2        /* Want only IR_BROR. */
  205. ‌#define LJ_TARGET_GC64                1
  206. ‌#define LJ_ARCH_NUMMODE                LJ_NUMMODE_DUAL
  207. ‌#define LJ_ARCH_NOJIT                1        /* NYI */

  209. ‌#define LJ_ARCH_VERSION                80

  211. #elif LUAJIT_TARGET == LUAJIT_ARCH_PPC

  213. #if __BYTE_ORDER__ != __ORDER_BIG_ENDIAN__
  214. ‌#define LJ_ARCH_ENDIAN                LUAJIT_LE
  215. #else
  216. ‌#define LJ_ARCH_ENDIAN                LUAJIT_BE
  217. #endif

  219. #if _LP64
  220. ‌#define LJ_ARCH_BITS                64
  221. #if LJ_ARCH_ENDIAN == LUAJIT_LE
  222. ‌#define LJ_ARCH_NAME                "ppc64le"
  223. #else
  224. ‌#define LJ_ARCH_NAME                "ppc64"
  225. #endif
  226. #else
  227. ‌#define LJ_ARCH_BITS                32
  228. ‌#define LJ_ARCH_NAME                "ppc"
  229. #endif

  231. ‌#define LJ_TARGET_PPC                1
  232. ‌#define LJ_TARGET_EHRETREG        3
  233. ‌#define LJ_TARGET_JUMPRANGE        25        /* +-2^25 = +-32MB */
  234. ‌#define LJ_TARGET_MASKSHIFT        0
  235. ‌#define LJ_TARGET_MASKROT        1
  236. ‌#define LJ_TARGET_UNIFYROT        1        /* Want only IR_BROL. */
  237. ‌#define LJ_ARCH_NUMMODE                LJ_NUMMODE_DUAL_SINGLE

  239. #if LJ_TARGET_CONSOLE
  240. ‌#define LJ_ARCH_PPC32ON64        1
  241. ‌#define LJ_ARCH_NOFFI                1
  242. #elif LJ_ARCH_BITS == 64
  243. ‌#define LJ_ARCH_PPC64                1
  244. ‌#define LJ_TARGET_GC64                1
  245. ‌#define LJ_ARCH_NOJIT                1        /* NYI */
  246. #endif

  248. #if _ARCH_PWR7
  249. ‌#define LJ_ARCH_VERSION                70
  250. #elif _ARCH_PWR6
  251. ‌#define LJ_ARCH_VERSION                60
  252. #elif _ARCH_PWR5X
  253. ‌#define LJ_ARCH_VERSION                51
  254. #elif _ARCH_PWR5
  255. ‌#define LJ_ARCH_VERSION                50
  256. #elif _ARCH_PWR4
  257. ‌#define LJ_ARCH_VERSION                40
  258. #else
  259. ‌#define LJ_ARCH_VERSION                0
  260. #endif
  261. #if _ARCH_PPCSQ
  262. ‌#define LJ_ARCH_SQRT                1
  263. #endif
  264. #if _ARCH_PWR5X
  265. ‌#define LJ_ARCH_ROUND                1
  266. #endif
  267. #if __PPU__
  268. ‌#define LJ_ARCH_CELL                1
  269. #endif
  270. #if LJ_TARGET_XBOX360
  271. ‌#define LJ_ARCH_XENON                1
  272. #endif

  274. #elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS

  276. #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
  277. ‌#define LJ_ARCH_NAME                "mipsel"
  278. ‌#define LJ_ARCH_ENDIAN                LUAJIT_LE
  279. #else
  280. ‌#define LJ_ARCH_NAME                "mips"
  281. ‌#define LJ_ARCH_ENDIAN                LUAJIT_BE
  282. #endif
  283. ‌#define LJ_ARCH_BITS                32
  284. ‌#define LJ_TARGET_MIPS                1
  285. ‌#define LJ_TARGET_EHRETREG        4
  286. ‌#define LJ_TARGET_JUMPRANGE        27        /* 2*2^27 = 256MB-aligned region */
  287. ‌#define LJ_TARGET_MASKSHIFT        1
  288. ‌#define LJ_TARGET_MASKROT        1
  289. ‌#define LJ_TARGET_UNIFYROT        2        /* Want only IR_BROR. */
  290. ‌#define LJ_ARCH_NUMMODE                LJ_NUMMODE_SINGLE

  292. #if _MIPS_ARCH_MIPS32R2
  293. ‌#define LJ_ARCH_VERSION                20
  294. #else
  295. ‌#define LJ_ARCH_VERSION                10
  296. #endif

  298. #else
  299. #error "No target architecture defined"
  300. #endif

  302. #ifndef LJ_PAGESIZE
  303. ‌#define LJ_PAGESIZE                4096
  304. #endif

  306. /* Check for minimum required compiler versions. */
  307. #if defined(__GNUC__)
  308. #if LJ_TARGET_X86
  309. #if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
  310. #error "Need at least GCC 3.4 or newer"
  311. #endif
  312. #elif LJ_TARGET_X64
  313. #if __GNUC__ < 4
  314. #error "Need at least GCC 4.0 or newer"
  315. #endif
  316. #elif LJ_TARGET_ARM
  317. #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
  318. #error "Need at least GCC 4.2 or newer"
  319. #endif
  320. #elif LJ_TARGET_ARM64
  321. #if __clang__
  322. #if (__clang_major__ < 3) || ((__clang_major__ == 3) && __clang_minor__ < 5)
  323. #error "Need at least Clang 3.5 or newer"
  324. #endif
  325. #else
  326. #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 8)
  327. #error "Need at least GCC 4.8 or newer"
  328. #endif
  329. #endif
  330. #elif !LJ_TARGET_PS3
  331. #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
  332. #error "Need at least GCC 4.3 or newer"
  333. #endif
  334. #endif
  335. #endif

  337. /* Check target-specific constraints. */
  338. #ifndef _BUILDVM_H
  339. #if LJ_TARGET_X64
  340. #if __USING_SJLJ_EXCEPTIONS__
  341. #error "Need a C compiler with native exception handling on x64"
  342. #endif
  343. #elif LJ_TARGET_ARM
  344. #if defined(__ARMEB__)
  345. #error "No support for big-endian ARM"
  346. #endif
  347. #if __ARM_ARCH_6M__ || __ARM_ARCH_7M__ || __ARM_ARCH_7EM__
  348. #error "No support for Cortex-M CPUs"
  349. #endif
  350. #if !(__ARM_EABI__ || LJ_TARGET_IOS)
  351. #error "Only ARM EABI or iOS 3.0+ ABI is supported"
  352. #endif
  353. #elif LJ_TARGET_ARM64
  354. #if defined(__AARCH64EB__)
  355. #error "No support for big-endian ARM64"
  356. #endif
  357. #if defined(_ILP32)
  358. #error "No support for ILP32 model on ARM64"
  359. #endif
  360. #elif LJ_TARGET_PPC
  361. #if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
  362. #error "No support for PowerPC CPUs without double-precision FPU"
  363. #endif
  364. #if !LJ_ARCH_PPC64 && LJ_ARCH_ENDIAN == LUAJIT_LE
  365. #error "No support for little-endian PPC32"
  366. #endif
  367. #if LJ_ARCH_PPC64
  368. #error "No support for PowerPC 64 bit mode (yet)"
  369. #endif
  370. #ifdef __NO_FPRS__
  371. #error "No support for PPC/e500 anymore (use LuaJIT 2.0)"
  372. #endif
  373. #elif LJ_TARGET_MIPS
  374. #if defined(__mips_soft_float)
  375. #error "No support for MIPS CPUs without FPU"
  376. #endif
  377. #if defined(_LP64)
  378. #error "No support for MIPS64"
  379. #endif
  380. #endif
  381. #endif

  383. /* Enable or disable the dual-number mode for the VM. */
  384. #if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
  385.     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
  386. #error "No support for this number mode on this architecture"
  387. #endif
  388. #if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
  389.     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
  390.     (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
  391. ‌#define LJ_DUALNUM                1
  392. #else
  393. ‌#define LJ_DUALNUM                0
  394. #endif

  396. #if LJ_TARGET_IOS || LJ_TARGET_CONSOLE
  397. /* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
  398. /* Ditto for the consoles. Complain to Sony or MS, not me. */
  399. #ifndef LUAJIT_ENABLE_JIT
  400. ‌#define LJ_OS_NOJIT                1
  401. #endif
  402. #endif

  404. /* 64 bit GC references. */
  405. #if LJ_TARGET_GC64
  406. ‌#define LJ_GC64                        1
  407. #else
  408. ‌#define LJ_GC64                        0
  409. #endif

  411. /* 2-slot frame info. */
  412. #if LJ_GC64
  413. ‌#define LJ_FR2                        1
  414. #else
  415. ‌#define LJ_FR2                        0
  416. #endif

  418. /* Disable or enable the JIT compiler. */
  419. #if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT) || LJ_FR2 || LJ_GC64
  420. ‌#define LJ_HASJIT                0
  421. #else
  422. ‌#define LJ_HASJIT                1
  423. #endif

  425. /* Disable or enable the FFI extension. */
  426. #if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
  427. ‌#define LJ_HASFFI                0
  428. #else
  429. ‌#define LJ_HASFFI                1
  430. #endif

  432. #if defined(LUAJIT_DISABLE_PROFILE)
  433. ‌#define LJ_HASPROFILE                0
  434. #elif LJ_TARGET_POSIX
  435. ‌#define LJ_HASPROFILE                1
  436. ‌#define LJ_PROFILE_SIGPROF        1
  437. #elif LJ_TARGET_PS3
  438. ‌#define LJ_HASPROFILE                1
  439. ‌#define LJ_PROFILE_PTHREAD        1
  440. #elif LJ_TARGET_WINDOWS || LJ_TARGET_XBOX360
  441. ‌#define LJ_HASPROFILE                1
  442. ‌#define LJ_PROFILE_WTHREAD        1
  443. #else
  444. ‌#define LJ_HASPROFILE                0
  445. #endif

  447. #ifndef LJ_ARCH_HASFPU
  448. ‌#define LJ_ARCH_HASFPU                1
  449. #endif
  450. #ifndef LJ_ABI_SOFTFP
  451. ‌#define LJ_ABI_SOFTFP                0
  452. #endif
  453. ‌#define LJ_SOFTFP                (!LJ_ARCH_HASFPU)

  455. #if LJ_ARCH_ENDIAN == LUAJIT_BE
  456. ‌#define LJ_LE                        0
  457. ‌#define LJ_BE                        1
  458. ‌#define LJ_ENDIAN_SELECT(le, be)        be
  459. ‌#define LJ_ENDIAN_LOHI(lo, hi)                hi lo
  460. #else
  461. ‌#define LJ_LE                        1
  462. ‌#define LJ_BE                        0
  463. ‌#define LJ_ENDIAN_SELECT(le, be)        le
  464. ‌#define LJ_ENDIAN_LOHI(lo, hi)                lo hi
  465. #endif

  467. #if LJ_ARCH_BITS == 32
  468. ‌#define LJ_32                        1
  469. ‌#define LJ_64                        0
  470. #else
  471. ‌#define LJ_32                        0
  472. ‌#define LJ_64                        1
  473. #endif

  475. #ifndef LJ_TARGET_UNALIGNED
  476. ‌#define LJ_TARGET_UNALIGNED        0
  477. #endif

  479. /* Various workarounds for embedded operating systems or weak C runtimes. */
  480. #if (defined(__ANDROID__) && !defined(LJ_TARGET_X86ORX64)) || defined(__symbian__) || LJ_TARGET_XBOX360 || LJ_TARGET_WINDOWS
  481. ‌#define LUAJIT_NO_LOG2
  482. #endif
  483. #if defined(__symbian__) || LJ_TARGET_WINDOWS
  484. ‌#define LUAJIT_NO_EXP2
  485. #endif

  487. #if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3
  488. ‌#define LJ_NO_UNWIND                1
  489. #endif

  491. /* Compatibility with Lua 5.1 vs. 5.2. */
  492. #ifdef LUAJIT_ENABLE_LUA52COMPAT
  493. ‌#define LJ_52                        1
  494. #else
  495. ‌#define LJ_52                        0
  496. #endif

  498. #endif

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