1/* 2** $Id: luaconf.h,v 1.176.1.2 2013/11/21 17:26:16 roberto Exp $ 3** Configuration file for Lua 4** See Copyright Notice in lua.h 5*/ 6 7 8#ifndef lconfig_h 9#define lconfig_h 10 11#include <sys/zfs_context.h> 12#ifdef illumos 13#include <sys/int_fmtio.h> 14#else 15#include <machine/_inttypes.h> 16#endif 17 18extern ssize_t lcompat_sprintf(char *, const char *, ...); 19extern int64_t lcompat_strtoll(const char *, char **); 20extern int64_t lcompat_pow(int64_t, int64_t); 21 22/* 23** ================================================================== 24** Search for "@@" to find all configurable definitions. 25** =================================================================== 26*/ 27 28 29/* 30@@ LUA_ANSI controls the use of non-ansi features. 31** CHANGE it (define it) if you want Lua to avoid the use of any 32** non-ansi feature or library. 33*/ 34#if !defined(LUA_ANSI) && defined(__STRICT_ANSI__) 35#define LUA_ANSI 36#endif 37 38 39#if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE) 40#define LUA_WIN /* enable goodies for regular Windows platforms */ 41#endif 42 43#if defined(LUA_WIN) 44#define LUA_DL_DLL 45#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ 46#endif 47 48 49 50#if defined(LUA_USE_LINUX) 51#define LUA_USE_POSIX 52#define LUA_USE_DLOPEN /* needs an extra library: -ldl */ 53#define LUA_USE_READLINE /* needs some extra libraries */ 54#define LUA_USE_STRTODHEX /* assume 'strtod' handles hex formats */ 55#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ 56#define LUA_USE_LONGLONG /* assume support for long long */ 57#endif 58 59#if defined(LUA_USE_MACOSX) 60#define LUA_USE_POSIX 61#define LUA_USE_DLOPEN /* does not need -ldl */ 62#define LUA_USE_READLINE /* needs an extra library: -lreadline */ 63#define LUA_USE_STRTODHEX /* assume 'strtod' handles hex formats */ 64#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ 65#define LUA_USE_LONGLONG /* assume support for long long */ 66#endif 67 68 69 70/* 71@@ LUA_USE_POSIX includes all functionality listed as X/Open System 72@* Interfaces Extension (XSI). 73** CHANGE it (define it) if your system is XSI compatible. 74*/ 75#if defined(LUA_USE_POSIX) 76#define LUA_USE_MKSTEMP 77#define LUA_USE_ISATTY 78#define LUA_USE_POPEN 79#define LUA_USE_ULONGJMP 80#define LUA_USE_GMTIME_R 81#endif 82 83 84 85/* 86@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for 87@* Lua libraries. 88@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for 89@* C libraries. 90** CHANGE them if your machine has a non-conventional directory 91** hierarchy or if you want to install your libraries in 92** non-conventional directories. 93*/ 94#if defined(_WIN32) /* { */ 95/* 96** In Windows, any exclamation mark ('!') in the path is replaced by the 97** path of the directory of the executable file of the current process. 98*/ 99#define LUA_LDIR "!\\lua\\" 100#define LUA_CDIR "!\\" 101#define LUA_PATH_DEFAULT \ 102 LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ 103 LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" ".\\?.lua" 104#define LUA_CPATH_DEFAULT \ 105 LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll;" ".\\?.dll" 106 107#else /* }{ */ 108 109#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR "/" 110#define LUA_ROOT "/usr/local/" 111#define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR 112#define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR 113#define LUA_PATH_DEFAULT \ 114 LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 115 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" "./?.lua" 116#define LUA_CPATH_DEFAULT \ 117 LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" 118#endif /* } */ 119 120 121/* 122@@ LUA_DIRSEP is the directory separator (for submodules). 123** CHANGE it if your machine does not use "/" as the directory separator 124** and is not Windows. (On Windows Lua automatically uses "\".) 125*/ 126#if defined(_WIN32) 127#define LUA_DIRSEP "\\" 128#else 129#define LUA_DIRSEP "/" 130#endif 131 132 133/* 134@@ LUA_ENV is the name of the variable that holds the current 135@@ environment, used to access global names. 136** CHANGE it if you do not like this name. 137*/ 138#define LUA_ENV "_ENV" 139 140 141/* 142@@ LUA_API is a mark for all core API functions. 143@@ LUALIB_API is a mark for all auxiliary library functions. 144@@ LUAMOD_API is a mark for all standard library opening functions. 145** CHANGE them if you need to define those functions in some special way. 146** For instance, if you want to create one Windows DLL with the core and 147** the libraries, you may want to use the following definition (define 148** LUA_BUILD_AS_DLL to get it). 149*/ 150#if defined(LUA_BUILD_AS_DLL) /* { */ 151 152#if defined(LUA_CORE) || defined(LUA_LIB) /* { */ 153#define LUA_API __declspec(dllexport) 154#else /* }{ */ 155#define LUA_API __declspec(dllimport) 156#endif /* } */ 157 158#else /* }{ */ 159 160#define LUA_API extern 161 162#endif /* } */ 163 164 165/* more often than not the libs go together with the core */ 166#define LUALIB_API LUA_API 167#define LUAMOD_API LUALIB_API 168 169 170/* 171@@ LUAI_FUNC is a mark for all extern functions that are not to be 172@* exported to outside modules. 173@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables 174@* that are not to be exported to outside modules (LUAI_DDEF for 175@* definitions and LUAI_DDEC for declarations). 176** CHANGE them if you need to mark them in some special way. Elf/gcc 177** (versions 3.2 and later) mark them as "hidden" to optimize access 178** when Lua is compiled as a shared library. Not all elf targets support 179** this attribute. Unfortunately, gcc does not offer a way to check 180** whether the target offers that support, and those without support 181** give a warning about it. To avoid these warnings, change to the 182** default definition. 183*/ 184#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ 185 defined(__ELF__) /* { */ 186#define LUAI_FUNC __attribute__((visibility("hidden"))) extern 187#define LUAI_DDEC LUAI_FUNC 188#define LUAI_DDEF /* empty */ 189 190#else /* }{ */ 191#define LUAI_FUNC extern 192#define LUAI_DDEC extern 193#define LUAI_DDEF /* empty */ 194#endif /* } */ 195 196 197 198/* 199@@ LUA_QL describes how error messages quote program elements. 200** CHANGE it if you want a different appearance. 201*/ 202#define LUA_QL(x) "'" x "'" 203#define LUA_QS LUA_QL("%s") 204 205 206/* 207@@ LUA_IDSIZE gives the maximum size for the description of the source 208@* of a function in debug information. 209** CHANGE it if you want a different size. 210*/ 211#define LUA_IDSIZE 60 212 213 214/* 215@@ luai_writestringerror defines how to print error messages. 216** (A format string with one argument is enough for Lua...) 217*/ 218#ifdef _KERNEL 219#define luai_writestringerror(s,p) \ 220 (zfs_dbgmsg((s), (p))) 221#else 222#define luai_writestringerror(s,p) \ 223 (fprintf(stderr, (s), (p)), fflush(stderr)) 224#endif 225 226 227/* 228@@ LUAI_MAXSHORTLEN is the maximum length for short strings, that is, 229** strings that are internalized. (Cannot be smaller than reserved words 230** or tags for metamethods, as these strings must be internalized; 231** #("function") = 8, #("__newindex") = 10.) 232*/ 233#define LUAI_MAXSHORTLEN 40 234 235 236 237/* 238** {================================================================== 239** Compatibility with previous versions 240** =================================================================== 241*/ 242 243/* 244@@ LUA_COMPAT_ALL controls all compatibility options. 245** You can define it to get all options, or change specific options 246** to fit your specific needs. 247*/ 248#if defined(LUA_COMPAT_ALL) /* { */ 249 250/* 251@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. 252** You can replace it with 'table.unpack'. 253*/ 254#define LUA_COMPAT_UNPACK 255 256/* 257@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. 258** You can replace it with 'package.searchers'. 259*/ 260#define LUA_COMPAT_LOADERS 261 262/* 263@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall. 264** You can call your C function directly (with light C functions). 265*/ 266#define lua_cpcall(L,f,u) \ 267 (lua_pushcfunction(L, (f)), \ 268 lua_pushlightuserdata(L,(u)), \ 269 lua_pcall(L,1,0,0)) 270 271 272/* 273@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. 274** You can rewrite 'log10(x)' as 'log(x, 10)'. 275*/ 276#define LUA_COMPAT_LOG10 277 278/* 279@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base 280** library. You can rewrite 'loadstring(s)' as 'load(s)'. 281*/ 282#define LUA_COMPAT_LOADSTRING 283 284/* 285@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. 286*/ 287#define LUA_COMPAT_MAXN 288 289/* 290@@ The following macros supply trivial compatibility for some 291** changes in the API. The macros themselves document how to 292** change your code to avoid using them. 293*/ 294#define lua_strlen(L,i) lua_rawlen(L, (i)) 295 296#define lua_objlen(L,i) lua_rawlen(L, (i)) 297 298#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) 299#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) 300 301/* 302@@ LUA_COMPAT_MODULE controls compatibility with previous 303** module functions 'module' (Lua) and 'luaL_register' (C). 304*/ 305#define LUA_COMPAT_MODULE 306 307#endif /* } */ 308 309/* }================================================================== */ 310 311 312 313/* 314@@ LUAI_BITSINT defines the number of bits in an int. 315** CHANGE here if Lua cannot automatically detect the number of bits of 316** your machine. Probably you do not need to change this. 317*/ 318/* avoid overflows in comparison */ 319#if INT_MAX-20 < 32760 /* { */ 320#define LUAI_BITSINT 16 321#elif INT_MAX > 2147483640L /* }{ */ 322/* int has at least 32 bits */ 323#define LUAI_BITSINT 32 324#else /* }{ */ 325#error "you must define LUA_BITSINT with number of bits in an integer" 326#endif /* } */ 327 328 329/* 330@@ LUA_INT32 is a signed integer with exactly 32 bits. 331@@ LUAI_UMEM is an unsigned integer big enough to count the total 332@* memory used by Lua. 333@@ LUAI_MEM is a signed integer big enough to count the total memory 334@* used by Lua. 335** CHANGE here if for some weird reason the default definitions are not 336** good enough for your machine. Probably you do not need to change 337** this. 338*/ 339#if LUAI_BITSINT >= 32 /* { */ 340#define LUA_INT32 int 341#define LUAI_UMEM size_t 342#define LUAI_MEM ptrdiff_t 343#else /* }{ */ 344/* 16-bit ints */ 345#define LUA_INT32 long 346#define LUAI_UMEM unsigned long 347#define LUAI_MEM long 348#endif /* } */ 349 350 351/* 352@@ LUAI_MAXSTACK limits the size of the Lua stack. 353** CHANGE it if you need a different limit. This limit is arbitrary; 354** its only purpose is to stop Lua from consuming unlimited stack 355** space (and to reserve some numbers for pseudo-indices). 356*/ 357#if LUAI_BITSINT >= 32 358#define LUAI_MAXSTACK 1000000 359#else 360#define LUAI_MAXSTACK 15000 361#endif 362 363/* reserve some space for error handling */ 364#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000) 365 366 367 368 369/* 370@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 371** CHANGE it if it uses too much C-stack space. 372*/ 373#define LUAL_BUFFERSIZE 1024 374 375 376 377 378/* 379** {================================================================== 380@@ LUA_NUMBER is the type of numbers in Lua. 381** CHANGE the following definitions only if you want to build Lua 382** with a number type different from double. You may also need to 383** change lua_number2int & lua_number2integer. 384** =================================================================== 385*/ 386 387#define LUA_NUMBER int64_t 388 389/* 390@@ LUAI_UACNUMBER is the result of an 'usual argument conversion' 391@* over a number. 392*/ 393#define LUAI_UACNUMBER int64_t 394 395 396/* 397@@ LUA_NUMBER_SCAN is the format for reading numbers. 398@@ LUA_NUMBER_FMT is the format for writing numbers. 399@@ lua_number2str converts a number to a string. 400@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. 401*/ 402#define LUA_NUMBER_FMT "%" PRId64 403#define lua_number2str(s,n) lcompat_sprintf((s), LUA_NUMBER_FMT, (n)) 404#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ 405 406 407/* 408@@ l_mathop allows the addition of an 'l' or 'f' to all math operations 409*/ 410#define l_mathop(x) (x ## l) 411 412 413/* 414@@ lua_str2number converts a decimal numeric string to a number. 415@@ lua_strx2number converts an hexadecimal numeric string to a number. 416** In C99, 'strtod' does both conversions. C89, however, has no function 417** to convert floating hexadecimal strings to numbers. For these 418** systems, you can leave 'lua_strx2number' undefined and Lua will 419** provide its own implementation. 420*/ 421#define lua_str2number(s,p) lcompat_strtoll((s), (p)) 422 423#if defined(LUA_USE_STRTODHEX) 424#define lua_strx2number(s,p) lcompat_strtoll((s), (p)) 425#endif 426 427 428/* 429@@ The luai_num* macros define the primitive operations over numbers. 430*/ 431 432/* the following operations need the math library */ 433#if defined(lobject_c) || defined(lvm_c) 434#define luai_nummod(L,a,b) ((a) % (b)) 435#define luai_numpow(L,a,b) (lcompat_pow((a),(b))) 436#endif 437 438/* these are quite standard operations */ 439#if defined(LUA_CORE) 440#define luai_numadd(L,a,b) ((a)+(b)) 441#define luai_numsub(L,a,b) ((a)-(b)) 442#define luai_nummul(L,a,b) ((a)*(b)) 443#define luai_numdiv(L,a,b) ((a)/(b)) 444#define luai_numunm(L,a) (-(a)) 445#define luai_numeq(a,b) ((a)==(b)) 446#define luai_numlt(L,a,b) ((a)<(b)) 447#define luai_numle(L,a,b) ((a)<=(b)) 448#define luai_numisnan(L,a) (!luai_numeq((a), (a))) 449#endif 450 451 452 453/* 454@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. 455** CHANGE that if ptrdiff_t is not adequate on your machine. (On most 456** machines, ptrdiff_t gives a good choice between int or long.) 457*/ 458#define LUA_INTEGER ptrdiff_t 459 460/* 461@@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned. 462** It must have at least 32 bits. 463*/ 464#define LUA_UNSIGNED uint64_t 465 466 467 468/* 469** Some tricks with doubles 470*/ 471 472#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */ 473/* 474** The next definitions activate some tricks to speed up the 475** conversion from doubles to integer types, mainly to LUA_UNSIGNED. 476** 477@@ LUA_MSASMTRICK uses Microsoft assembler to avoid clashes with a 478** DirectX idiosyncrasy. 479** 480@@ LUA_IEEE754TRICK uses a trick that should work on any machine 481** using IEEE754 with a 32-bit integer type. 482** 483@@ LUA_IEEELL extends the trick to LUA_INTEGER; should only be 484** defined when LUA_INTEGER is a 32-bit integer. 485** 486@@ LUA_IEEEENDIAN is the endianness of doubles in your machine 487** (0 for little endian, 1 for big endian); if not defined, Lua will 488** check it dynamically for LUA_IEEE754TRICK (but not for LUA_NANTRICK). 489** 490@@ LUA_NANTRICK controls the use of a trick to pack all types into 491** a single double value, using NaN values to represent non-number 492** values. The trick only works on 32-bit machines (ints and pointers 493** are 32-bit values) with numbers represented as IEEE 754-2008 doubles 494** with conventional endianess (12345678 or 87654321), in CPUs that do 495** not produce signaling NaN values (all NaNs are quiet). 496*/ 497 498/* Microsoft compiler on a Pentium (32 bit) ? */ 499#if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */ 500 501#define LUA_MSASMTRICK 502#define LUA_IEEEENDIAN 0 503#define LUA_NANTRICK 504 505 506/* pentium 32 bits? */ 507#elif defined(__i386__) || defined(__i386) || defined(__X86__) /* }{ */ 508 509#define LUA_IEEE754TRICK 510#define LUA_IEEELL 511#define LUA_IEEEENDIAN 0 512#define LUA_NANTRICK 513 514/* pentium 64 bits? */ 515#elif defined(__x86_64) /* }{ */ 516 517#define LUA_IEEE754TRICK 518#define LUA_IEEEENDIAN 0 519 520#elif defined(__POWERPC__) || defined(__ppc__) /* }{ */ 521 522#define LUA_IEEE754TRICK 523#define LUA_IEEEENDIAN 1 524 525#else /* }{ */ 526 527/* assume IEEE754 and a 32-bit integer type */ 528#define LUA_IEEE754TRICK 529 530#endif /* } */ 531 532#endif /* } */ 533 534/* }================================================================== */ 535 536 537 538 539/* =================================================================== */ 540 541/* 542** Local configuration. You can use this space to add your redefinitions 543** without modifying the main part of the file. 544*/ 545 546#define getlocaledecpoint() ('.') 547 548#define abs(x) (((x) < 0) ? -(x) : (x)) 549 550#if !defined(UCHAR_MAX) 551#define UCHAR_MAX (0xff) 552#endif 553 554#endif 555 556