FreeWRL / FreeX3D 4.3.0
duk_config.h
1/*
2 * duk_config.h configuration header generated by genconfig.py.
3 *
4 * Git commit: external
5 * Git describe: external
6 * Git branch: external
7 *
8 * Supported platforms:
9 * - Mac OSX, iPhone, Darwin
10 * - Orbis
11 * - OpenBSD
12 * - Generic BSD
13 * - Atari ST TOS
14 * - AmigaOS
15 * - Windows
16 * - Flashplayer (Crossbridge)
17 * - QNX
18 * - TI-Nspire
19 * - Emscripten
20 * - Linux
21 * - Solaris
22 * - Generic POSIX
23 * - Cygwin
24 * - Generic UNIX
25 * - Generic fallback
26 *
27 * Supported architectures:
28 * - x86
29 * - x64
30 * - x32
31 * - ARM 32-bit
32 * - ARM 64-bit
33 * - MIPS 32-bit
34 * - MIPS 64-bit
35 * - PowerPC 32-bit
36 * - PowerPC 64-bit
37 * - SPARC 32-bit
38 * - SPARC 64-bit
39 * - SuperH
40 * - Motorola 68k
41 * - Emscripten
42 * - Generic
43 *
44 * Supported compilers:
45 * - Clang
46 * - GCC
47 * - MSVC
48 * - Emscripten
49 * - TinyC
50 * - VBCC
51 * - Bruce's C compiler
52 * - Generic
53 *
54 */
55
56#if !defined(DUK_CONFIG_H_INCLUDED)
57#define DUK_CONFIG_H_INCLUDED
58
59/*
60 * Intermediate helper defines
61 */
62
63/* DLL build detection */
64/* not configured for DLL build */
65#undef DUK_F_DLL_BUILD
66
67/* Apple OSX, iOS */
68#if defined(__APPLE__)
69#define DUK_F_APPLE
70#endif
71
72/* FreeBSD */
73#if defined(__FreeBSD__) || defined(__FreeBSD)
74#define DUK_F_FREEBSD
75#endif
76
77/* Orbis (PS4) variant */
78#if defined(DUK_F_FREEBSD) && defined(__ORBIS__)
79#define DUK_F_ORBIS
80#endif
81
82/* OpenBSD */
83#if defined(__OpenBSD__) || defined(__OpenBSD)
84#define DUK_F_OPENBSD
85#endif
86
87/* NetBSD */
88#if defined(__NetBSD__) || defined(__NetBSD)
89#define DUK_F_NETBSD
90#endif
91
92/* BSD variant */
93#if defined(DUK_F_FREEBSD) || defined(DUK_F_NETBSD) || defined(DUK_F_OPENBSD) || \
94 defined(__bsdi__) || defined(__DragonFly__)
95#define DUK_F_BSD
96#endif
97
98/* Atari ST TOS. __TOS__ defined by PureC. No platform define in VBCC
99 * apparently, so to use with VBCC user must define __TOS__ manually.
100 */
101#if defined(__TOS__)
102#define DUK_F_TOS
103#endif
104
105/* Motorola 68K. Not defined by VBCC, so user must define one of these
106 * manually when using VBCC.
107 */
108#if defined(__m68k__) || defined(M68000) || defined(__MC68K__)
109#define DUK_F_M68K
110#endif
111
112/* AmigaOS. Neither AMIGA nor __amigaos__ is defined on VBCC, so user must
113 * define 'AMIGA' manually when using VBCC.
114 */
115#if defined(AMIGA) || defined(__amigaos__)
116#define DUK_F_AMIGAOS
117#endif
118
119/* PowerPC */
120#if defined(__powerpc) || defined(__powerpc__) || defined(__PPC__)
121#define DUK_F_PPC
122#if defined(__PPC64__) || defined(__LP64__) || defined(_LP64)
123#define DUK_F_PPC64
124#else
125#define DUK_F_PPC32
126#endif
127#endif
128
129/* Windows, both 32-bit and 64-bit */
130#if defined(_WIN32) || defined(WIN32) || defined(_WIN64) || defined(WIN64) || \
131 defined(__WIN32__) || defined(__TOS_WIN__) || defined(__WINDOWS__)
132#define DUK_F_WINDOWS
133#if defined(_WIN64) || defined(WIN64)
134#define DUK_F_WIN64
135#else
136#define DUK_F_WIN32
137#endif
138#endif
139
140/* Flash player (e.g. Crossbridge) */
141#if defined(__FLASHPLAYER__)
142#define DUK_F_FLASHPLAYER
143#endif
144
145/* QNX */
146#if defined(__QNX__)
147#define DUK_F_QNX
148#endif
149
150/* TI-Nspire (using Ndless) */
151#if defined(_TINSPIRE)
152#define DUK_F_TINSPIRE
153#endif
154
155/* Emscripten (provided explicitly by user), improve if possible */
156#if defined(EMSCRIPTEN)
157#define DUK_F_EMSCRIPTEN
158#endif
159
160/* BCC (Bruce's C compiler): this is a "torture target" for compilation */
161#if defined(__BCC__) || defined(__BCC_VERSION__)
162#define DUK_F_BCC
163#endif
164
165/* Linux */
166#if defined(__linux) || defined(__linux__) || defined(linux)
167#define DUK_F_LINUX
168#endif
169
170/* illumos / Solaris */
171#if defined(__sun) && defined(__SVR4)
172#define DUK_F_SUN
173#endif
174
175/* POSIX */
176#if defined(__posix)
177#define DUK_F_POSIX
178#endif
179
180/* Cygwin */
181#if defined(__CYGWIN__)
182#define DUK_F_CYGWIN
183#endif
184
185/* Generic Unix (includes Cygwin) */
186#if defined(__unix) || defined(__unix__) || defined(unix) || \
187 defined(DUK_F_LINUX) || defined(DUK_F_BSD)
188#define DUK_F_UNIX
189#endif
190
191/* stdint.h not available */
192#if defined(DUK_F_WINDOWS) && defined(_MSC_VER)
193#if (_MSC_VER < 1700)
194/* VS2012+ has stdint.h, < VS2012 does not (but it's available for download). */
195#define DUK_F_NO_STDINT_H
196#endif
197#endif
198#if !defined(DUK_F_NO_STDINT_H) && (defined(DUK_F_TOS) || defined(DUK_F_BCC))
199#define DUK_F_NO_STDINT_H
200#endif
201
202/* C++ */
203#undef DUK_F_CPP
204#if defined(__cplusplus)
205#define DUK_F_CPP
206#endif
207
208/* Intel x86 (32-bit), x64 (64-bit) or x32 (64-bit but 32-bit pointers),
209 * define only one of DUK_F_X86, DUK_F_X64, DUK_F_X32.
210 * https://sites.google.com/site/x32abi/
211 */
212#if defined(__amd64__) || defined(__amd64) || \
213 defined(__x86_64__) || defined(__x86_64) || \
214 defined(_M_X64) || defined(_M_AMD64)
215#if defined(__ILP32__) || defined(_ILP32)
216#define DUK_F_X32
217#else
218#define DUK_F_X64
219#endif
220#elif defined(i386) || defined(__i386) || defined(__i386__) || \
221 defined(__i486__) || defined(__i586__) || defined(__i686__) || \
222 defined(__IA32__) || defined(_M_IX86) || defined(__X86__) || \
223 defined(_X86_) || defined(__THW_INTEL__) || defined(__I86__)
224#if defined(__LP64__) || defined(_LP64)
225/* This should not really happen, but would indicate x64. */
226#define DUK_F_X64
227#else
228#define DUK_F_X86
229#endif
230#endif
231
232/* ARM */
233#if defined(__arm__) || defined(__thumb__) || defined(_ARM) || defined(_M_ARM) || defined(__aarch64__)
234#define DUK_F_ARM
235#if defined(__LP64__) || defined(_LP64) || defined(__arm64) || defined(__arm64__) || defined(__aarch64__)
236#define DUK_F_ARM64
237#else
238#define DUK_F_ARM32
239#endif
240#endif
241
242/* MIPS. Related defines: __MIPSEB__, __MIPSEL__, __mips_isa_rev, __LP64__ */
243#if defined(__mips__) || defined(mips) || defined(_MIPS_ISA) || \
244 defined(_R3000) || defined(_R4000) || defined(_R5900) || \
245 defined(_MIPS_ISA_MIPS1) || defined(_MIPS_ISA_MIPS2) || \
246 defined(_MIPS_ISA_MIPS3) || defined(_MIPS_ISA_MIPS4) || \
247 defined(__mips) || defined(__MIPS__)
248#define DUK_F_MIPS
249#if defined(__LP64__) || defined(_LP64) || defined(__mips64) || \
250 defined(__mips64__) || defined(__mips_n64)
251#define DUK_F_MIPS64
252#else
253#define DUK_F_MIPS32
254#endif
255#endif
256
257/* SPARC */
258#if defined(sparc) || defined(__sparc) || defined(__sparc__)
259#define DUK_F_SPARC
260#if defined(__LP64__) || defined(_LP64)
261#define DUK_F_SPARC64
262#else
263#define DUK_F_SPARC32
264#endif
265#endif
266
267/* SuperH */
268#if defined(__sh__) || \
269 defined(__sh1__) || defined(__SH1__) || \
270 defined(__sh2__) || defined(__SH2__) || \
271 defined(__sh3__) || defined(__SH3__) || \
272 defined(__sh4__) || defined(__SH4__) || \
273 defined(__sh5__) || defined(__SH5__)
274#define DUK_F_SUPERH
275#endif
276
277/* Clang */
278#if defined(__clang__)
279#define DUK_F_CLANG
280#endif
281
282/* C99 or above */
283#undef DUK_F_C99
284#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
285#define DUK_F_C99
286#endif
287
288/* C++11 or above */
289#undef DUK_F_CPP11
290#if defined(__cplusplus) && (__cplusplus >= 201103L)
291#define DUK_F_CPP11
292#endif
293
294/* GCC. Clang also defines __GNUC__ so don't detect GCC if using Clang. */
295#if defined(__GNUC__) && !defined(__clang__) && !defined(DUK_F_CLANG)
296#define DUK_F_GCC
297#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
298/* Convenience, e.g. gcc 4.5.1 == 40501; http://stackoverflow.com/questions/6031819/emulating-gccs-builtin-unreachable */
299#define DUK_F_GCC_VERSION (__GNUC__ * 10000L + __GNUC_MINOR__ * 100L + __GNUC_PATCHLEVEL__)
300#else
301#error cannot figure out gcc version
302#endif
303#endif
304
305/* MinGW. Also GCC flags (DUK_F_GCC) are enabled now. */
306#if defined(__MINGW32__) || defined(__MINGW64__)
307#define DUK_F_MINGW
308#endif
309
310/* MSVC */
311#if defined(_MSC_VER)
312/* MSVC preprocessor defines: http://msdn.microsoft.com/en-us/library/b0084kay.aspx
313 * _MSC_FULL_VER includes the build number, but it has at least two formats, see e.g.
314 * BOOST_MSVC_FULL_VER in http://www.boost.org/doc/libs/1_52_0/boost/config/compiler/visualc.hpp
315 */
316#define DUK_F_MSVC
317#if defined(_MSC_FULL_VER)
318#if (_MSC_FULL_VER > 100000000)
319#define DUK_F_MSVC_FULL_VER _MSC_FULL_VER
320#else
321#define DUK_F_MSCV_FULL_VER (_MSC_FULL_VER * 10)
322#endif
323#endif
324#endif /* _MSC_VER */
325
326/* TinyC */
327#if defined(__TINYC__)
328/* http://bellard.org/tcc/tcc-doc.html#SEC9 */
329#define DUK_F_TINYC
330#endif
331
332/* VBCC */
333#if defined(__VBCC__)
334#define DUK_F_VBCC
335#endif
336
337/*
338 * Platform autodetection
339 */
340
341/* Workaround for older C++ compilers before including <inttypes.h>,
342 * see e.g.: https://sourceware.org/bugzilla/show_bug.cgi?id=15366
343 */
344#if defined(__cplusplus) && !defined(__STDC_LIMIT_MACROS)
345#define __STDC_LIMIT_MACROS
346#endif
347#if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS)
348#define __STDC_CONSTANT_MACROS
349#endif
350
351#if defined(DUK_F_APPLE)
352/* --- Mac OSX, iPhone, Darwin --- */
353#define DUK_USE_DATE_NOW_GETTIMEOFDAY
354#define DUK_USE_DATE_TZO_GMTIME_R
355#define DUK_USE_DATE_PRS_STRPTIME
356#define DUK_USE_DATE_FMT_STRFTIME
357#include <TargetConditionals.h>
358#include <architecture/byte_order.h>
359#include <sys/param.h>
360#include <sys/time.h>
361#include <time.h>
362
363/* http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor */
364#if TARGET_IPHONE_SIMULATOR
365#define DUK_USE_OS_STRING "iphone-sim"
366#elif TARGET_OS_IPHONE
367#define DUK_USE_OS_STRING "iphone"
368#elif TARGET_OS_MAC
369#define DUK_USE_OS_STRING "osx"
370#else
371#define DUK_USE_OS_STRING "osx-unknown"
372#endif
373
374/* Use _setjmp() on Apple by default, see GH-55. */
375#define DUK_JMPBUF_TYPE jmp_buf
376#define DUK_SETJMP(jb) _setjmp((jb))
377#define DUK_LONGJMP(jb) _longjmp((jb), 1)
378#elif defined(DUK_F_ORBIS)
379/* --- Orbis --- */
380/* Orbis = PS4 */
381#define DUK_USE_DATE_NOW_GETTIMEOFDAY
382#define DUK_USE_DATE_TZO_GMTIME_S
383/* no parsing (not an error) */
384#define DUK_USE_DATE_FMT_STRFTIME
385#include <sys/types.h>
386#include <machine/endian.h>
387#include <sys/param.h>
388#include <sys/time.h>
389#include <time.h>
390
391#define DUK_USE_OS_STRING "orbis"
392#elif defined(DUK_F_OPENBSD)
393/* --- OpenBSD --- */
394/* http://www.monkey.org/openbsd/archive/ports/0401/msg00089.html */
395#define DUK_USE_DATE_NOW_GETTIMEOFDAY
396#define DUK_USE_DATE_TZO_GMTIME_R
397#define DUK_USE_DATE_PRS_STRPTIME
398#define DUK_USE_DATE_FMT_STRFTIME
399#include <sys/types.h>
400#include <sys/endian.h>
401#include <sys/param.h>
402#include <sys/time.h>
403#include <time.h>
404
405#define DUK_USE_OS_STRING "openbsd"
406#elif defined(DUK_F_BSD)
407/* --- Generic BSD --- */
408#define DUK_USE_DATE_NOW_GETTIMEOFDAY
409#define DUK_USE_DATE_TZO_GMTIME_R
410#define DUK_USE_DATE_PRS_STRPTIME
411#define DUK_USE_DATE_FMT_STRFTIME
412#include <sys/types.h>
413#include <sys/endian.h>
414#include <sys/param.h>
415#include <sys/time.h>
416#include <time.h>
417
418#define DUK_USE_OS_STRING "bsd"
419#elif defined(DUK_F_TOS)
420/* --- Atari ST TOS --- */
421#define DUK_USE_DATE_NOW_TIME
422#define DUK_USE_DATE_TZO_GMTIME
423/* no parsing (not an error) */
424#define DUK_USE_DATE_FMT_STRFTIME
425#include <time.h>
426
427#define DUK_USE_OS_STRING "tos"
428
429/* TOS on M68K is always big endian. */
430#if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_M68K)
431#define DUK_USE_BYTEORDER 3
432#endif
433#elif defined(DUK_F_AMIGAOS)
434/* --- AmigaOS --- */
435#if defined(DUK_F_M68K)
436/* AmigaOS on M68k */
437#define DUK_USE_DATE_NOW_TIME
438#define DUK_USE_DATE_TZO_GMTIME
439/* no parsing (not an error) */
440#define DUK_USE_DATE_FMT_STRFTIME
441#include <time.h>
442#elif defined(DUK_F_PPC)
443#define DUK_USE_DATE_NOW_GETTIMEOFDAY
444#define DUK_USE_DATE_TZO_GMTIME_R
445#define DUK_USE_DATE_PRS_STRPTIME
446#define DUK_USE_DATE_FMT_STRFTIME
447#include <time.h>
448#if !defined(UINTPTR_MAX)
449#define UINTPTR_MAX UINT_MAX
450#endif
451#else
452#error AmigaOS but not M68K/PPC, not supported now
453#endif
454
455#define DUK_USE_OS_STRING "amigaos"
456
457/* AmigaOS on M68K or PPC is always big endian. */
458#if !defined(DUK_USE_BYTEORDER) && (defined(DUK_F_M68K) || defined(DUK_F_PPC))
459#define DUK_USE_BYTEORDER 3
460#endif
461#elif defined(DUK_F_WINDOWS)
462/* --- Windows --- */
463/* Initial fix: disable secure CRT related warnings when compiling Duktape
464 * itself (must be defined before including Windows headers). Don't define
465 * for user code including duktape.h.
466 */
467#if defined(DUK_COMPILING_DUKTAPE) && !defined(_CRT_SECURE_NO_WARNINGS)
468#define _CRT_SECURE_NO_WARNINGS
469#endif
470
471/* Windows 32-bit and 64-bit are currently the same. */
472/* MSVC does not have sys/param.h */
473#define DUK_USE_DATE_NOW_WINDOWS
474#define DUK_USE_DATE_TZO_WINDOWS
475/* Note: PRS and FMT are intentionally left undefined for now. This means
476 * there is no platform specific date parsing/formatting but there is still
477 * the ISO 8601 standard format.
478 */
479#if defined(DUK_COMPILING_DUKTAPE)
480/* Only include when compiling Duktape to avoid polluting application build
481 * with a lot of unnecessary defines.
482 */
483#include <windows.h>
484#endif
485
486#define DUK_USE_OS_STRING "windows"
487
488/* On Windows, assume we're little endian. Even Itanium which has a
489 * configurable endianness runs little endian in Windows.
490 */
491#if !defined(DUK_USE_BYTEORDER)
492#define DUK_USE_BYTEORDER 1
493#endif
494#elif defined(DUK_F_FLASHPLAYER)
495/* --- Flashplayer (Crossbridge) --- */
496#define DUK_USE_DATE_NOW_GETTIMEOFDAY
497#define DUK_USE_DATE_TZO_GMTIME_R
498#define DUK_USE_DATE_PRS_STRPTIME
499#define DUK_USE_DATE_FMT_STRFTIME
500#include <endian.h>
501#include <sys/param.h>
502#include <sys/time.h>
503#include <time.h>
504
505#define DUK_USE_OS_STRING "flashplayer"
506
507#if !defined(DUK_USE_BYTEORDER) && defined(DUK_F_FLASHPLAYER)
508#define DUK_USE_BYTEORDER 1
509#endif
510#elif defined(DUK_F_QNX)
511/* --- QNX --- */
512#if defined(DUK_F_QNX) && defined(DUK_COMPILING_DUKTAPE)
513/* See: /opt/qnx650/target/qnx6/usr/include/sys/platform.h */
514#define _XOPEN_SOURCE 600
515#define _POSIX_C_SOURCE 200112L
516#endif
517
518#define DUK_USE_DATE_NOW_GETTIMEOFDAY
519#define DUK_USE_DATE_TZO_GMTIME_R
520#define DUK_USE_DATE_PRS_STRPTIME
521#define DUK_USE_DATE_FMT_STRFTIME
522#include <sys/types.h>
523#include <sys/param.h>
524#include <sys/time.h>
525#include <time.h>
526
527#define DUK_USE_OS_STRING "qnx"
528#elif defined(DUK_F_TINSPIRE)
529/* --- TI-Nspire --- */
530#define DUK_USE_DATE_NOW_GETTIMEOFDAY
531#define DUK_USE_DATE_TZO_GMTIME_R
532#define DUK_USE_DATE_PRS_STRPTIME
533#define DUK_USE_DATE_FMT_STRFTIME
534#include <sys/types.h>
535#include <sys/param.h>
536#include <sys/time.h>
537#include <time.h>
538
539#define DUK_USE_OS_STRING "tinspire"
540#elif defined(DUK_F_EMSCRIPTEN)
541/* --- Emscripten --- */
542#if defined(DUK_COMPILING_DUKTAPE)
543#if !defined(_POSIX_C_SOURCE)
544#define _POSIX_C_SOURCE 200809L
545#endif
546#if !defined(_GNU_SOURCE)
547#define _GNU_SOURCE /* e.g. getdate_r */
548#endif
549#if !defined(_XOPEN_SOURCE)
550#define _XOPEN_SOURCE /* e.g. strptime */
551#endif
552#endif /* DUK_COMPILING_DUKTAPE */
553
554#include <sys/types.h>
555#if defined(DUK_F_BCC)
556/* no endian.h */
557#else
558#include <endian.h>
559#endif /* DUK_F_BCC */
560#include <sys/param.h>
561#include <sys/time.h>
562#include <time.h>
563#include <stdint.h>
564
565#define DUK_USE_DATE_NOW_GETTIMEOFDAY
566#define DUK_USE_DATE_TZO_GMTIME_R
567#define DUK_USE_DATE_PRS_STRPTIME
568#define DUK_USE_DATE_FMT_STRFTIME
569
570#define DUK_USE_OS_STRING "emscripten"
571#elif defined(DUK_F_LINUX)
572/* --- Linux --- */
573#if defined(DUK_COMPILING_DUKTAPE)
574#if !defined(_POSIX_C_SOURCE)
575#define _POSIX_C_SOURCE 200809L
576#endif
577#if !defined(_GNU_SOURCE)
578#define _GNU_SOURCE /* e.g. getdate_r */
579#endif
580#if !defined(_XOPEN_SOURCE)
581#define _XOPEN_SOURCE /* e.g. strptime */
582#endif
583#endif /* DUK_COMPILING_DUKTAPE */
584
585#include <sys/types.h>
586#if defined(DUK_F_BCC)
587/* no endian.h or stdint.h */
588#else
589#include <endian.h>
590#include <stdint.h>
591#endif /* DUK_F_BCC */
592#include <sys/param.h>
593#include <sys/time.h>
594#include <time.h>
595
596#define DUK_USE_DATE_NOW_GETTIMEOFDAY
597#define DUK_USE_DATE_TZO_GMTIME_R
598#define DUK_USE_DATE_PRS_STRPTIME
599#define DUK_USE_DATE_FMT_STRFTIME
600
601#define DUK_USE_OS_STRING "linux"
602#elif defined(DUK_F_SUN)
603/* --- Solaris --- */
604#define DUK_USE_DATE_NOW_GETTIMEOFDAY
605#define DUK_USE_DATE_TZO_GMTIME_R
606#define DUK_USE_DATE_PRS_STRPTIME
607#define DUK_USE_DATE_FMT_STRFTIME
608
609#include <sys/types.h>
610#include <ast/endian.h>
611#include <sys/param.h>
612#include <sys/time.h>
613#include <time.h>
614
615#define DUK_USE_OS_STRING "solaris"
616#elif defined(DUK_F_POSIX)
617/* --- Generic POSIX --- */
618#define DUK_USE_DATE_NOW_GETTIMEOFDAY
619#define DUK_USE_DATE_TZO_GMTIME_R
620#define DUK_USE_DATE_PRS_STRPTIME
621#define DUK_USE_DATE_FMT_STRFTIME
622#include <sys/types.h>
623#include <endian.h>
624#include <sys/param.h>
625#include <sys/time.h>
626#include <time.h>
627
628#define DUK_USE_OS_STRING "posix"
629#elif defined(DUK_F_CYGWIN)
630/* --- Cygwin --- */
631/* don't use strptime() for now */
632#define DUK_USE_DATE_NOW_GETTIMEOFDAY
633#define DUK_USE_DATE_TZO_GMTIME_R
634#define DUK_USE_DATE_FMT_STRFTIME
635#include <sys/types.h>
636#include <endian.h>
637#include <sys/param.h>
638#include <sys/time.h>
639#include <time.h>
640
641#define DUK_JMPBUF_TYPE jmp_buf
642#define DUK_SETJMP(jb) _setjmp((jb))
643#define DUK_LONGJMP(jb) _longjmp((jb), 1)
644
645#define DUK_USE_OS_STRING "windows"
646#elif defined(DUK_F_UNIX)
647/* --- Generic UNIX --- */
648#define DUK_USE_DATE_NOW_GETTIMEOFDAY
649#define DUK_USE_DATE_TZO_GMTIME_R
650#define DUK_USE_DATE_PRS_STRPTIME
651#define DUK_USE_DATE_FMT_STRFTIME
652#include <time.h>
653#include <sys/time.h>
654#define DUK_USE_OS_STRING "unknown"
655#else
656/* --- Generic fallback --- */
657/* The most portable current time provider is time(), but it only has a
658 * one second resolution.
659 */
660#define DUK_USE_DATE_NOW_TIME
661
662/* The most portable way to figure out local time offset is gmtime(),
663 * but it's not thread safe so use with caution.
664 */
665#define DUK_USE_DATE_TZO_GMTIME
666
667/* Avoid custom date parsing and formatting for portability. */
668#undef DUK_USE_DATE_PRS_STRPTIME
669#undef DUK_USE_DATE_FMT_STRFTIME
670
671/* Rely on C89 headers only; time.h must be here. */
672#include <time.h>
673
674#define DUK_USE_OS_STRING "unknown"
675#endif /* autodetect platform */
676
677/* Shared includes: C89 */
678#include <stdio.h>
679#include <stdlib.h>
680#include <string.h>
681#include <stdarg.h> /* varargs */
682#include <setjmp.h>
683#include <stddef.h> /* e.g. ptrdiff_t */
684#include <math.h>
685#include <limits.h>
686
687/* date.h is omitted, and included per platform */
688
689/* Shared includes: stdint.h is C99 */
690#if defined(DUK_F_NO_STDINT_H)
691/* stdint.h not available */
692#else
693/* Technically C99 (C++11) but found in many systems. On some systems
694 * __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS must be defined before
695 * including stdint.h (see above).
696 */
697#include <stdint.h>
698#endif
699
700#if defined(DUK_F_CPP)
701#include <exception> /* std::exception */
702#endif
703
704/*
705 * Architecture autodetection
706 */
707
708#if defined(DUK_F_X86)
709/* --- x86 --- */
710#define DUK_USE_ARCH_STRING "x86"
711#if !defined(DUK_USE_BYTEORDER)
712#define DUK_USE_BYTEORDER 1
713#endif
714/* XXX: This is technically not guaranteed because it's possible to configure
715 * an x86 to require aligned accesses with Alignment Check (AC) flag.
716 */
717#if !defined(DUK_USE_ALIGN_BY)
718#define DUK_USE_ALIGN_BY 1
719#endif
720#define DUK_USE_PACKED_TVAL
721#define DUK_F_PACKED_TVAL_PROVIDED
722#elif defined(DUK_F_X64)
723/* --- x64 --- */
724#define DUK_USE_ARCH_STRING "x64"
725#if !defined(DUK_USE_BYTEORDER)
726#define DUK_USE_BYTEORDER 1
727#endif
728/* XXX: This is technically not guaranteed because it's possible to configure
729 * an x86 to require aligned accesses with Alignment Check (AC) flag.
730 */
731#if !defined(DUK_USE_ALIGN_BY)
732#define DUK_USE_ALIGN_BY 1
733#endif
734#undef DUK_USE_PACKED_TVAL
735#define DUK_F_PACKED_TVAL_PROVIDED
736#elif defined(DUK_F_X32)
737/* --- x32 --- */
738#define DUK_USE_ARCH_STRING "x32"
739#if !defined(DUK_USE_BYTEORDER)
740#define DUK_USE_BYTEORDER 1
741#endif
742/* XXX: This is technically not guaranteed because it's possible to configure
743 * an x86 to require aligned accesses with Alignment Check (AC) flag.
744 */
745#if !defined(DUK_USE_ALIGN_BY)
746#define DUK_USE_ALIGN_BY 1
747#endif
748#define DUK_USE_PACKED_TVAL
749#define DUK_F_PACKED_TVAL_PROVIDED
750#elif defined(DUK_F_ARM32)
751/* --- ARM 32-bit --- */
752#define DUK_USE_ARCH_STRING "arm32"
753/* Byte order varies, so rely on autodetect. */
754#if !defined(DUK_USE_ALIGN_BY)
755#define DUK_USE_ALIGN_BY 4
756#endif
757#define DUK_USE_PACKED_TVAL
758#define DUK_F_PACKED_TVAL_PROVIDED
759#elif defined(DUK_F_ARM64)
760/* --- ARM 64-bit --- */
761#define DUK_USE_ARCH_STRING "arm64"
762/* Byte order varies, so rely on autodetect. */
763#if !defined(DUK_USE_ALIGN_BY)
764#define DUK_USE_ALIGN_BY 8
765#endif
766#undef DUK_USE_PACKED_TVAL
767#define DUK_F_PACKED_TVAL_PROVIDED
768#elif defined(DUK_F_MIPS32)
769/* --- MIPS 32-bit --- */
770#define DUK_USE_ARCH_STRING "mips32"
771/* MIPS byte order varies so rely on autodetection. */
772/* Based on 'make checkalign' there are no alignment requirements on
773 * Linux MIPS except for doubles, which need align by 4. Alignment
774 * requirements vary based on target though.
775 */
776#if !defined(DUK_USE_ALIGN_BY)
777#define DUK_USE_ALIGN_BY 4
778#endif
779#define DUK_USE_PACKED_TVAL
780#define DUK_F_PACKED_TVAL_PROVIDED
781#elif defined(DUK_F_MIPS64)
782/* --- MIPS 64-bit --- */
783#define DUK_USE_ARCH_STRING "mips64"
784/* MIPS byte order varies so rely on autodetection. */
785/* Good default is a bit arbitrary because alignment requirements
786 * depend on target. See https://github.com/svaarala/duktape/issues/102.
787 */
788#if !defined(DUK_USE_ALIGN_BY)
789#define DUK_USE_ALIGN_BY 8
790#endif
791#undef DUK_USE_PACKED_TVAL
792#define DUK_F_PACKED_TVAL_PROVIDED
793#elif defined(DUK_F_PPC32)
794/* --- PowerPC 32-bit --- */
795#define DUK_USE_ARCH_STRING "ppc32"
796#if !defined(DUK_USE_BYTEORDER)
797#define DUK_USE_BYTEORDER 3
798#endif
799#if !defined(DUK_USE_ALIGN_BY)
800#define DUK_USE_ALIGN_BY 8
801#endif
802#define DUK_USE_PACKED_TVAL
803#define DUK_F_PACKED_TVAL_PROVIDED
804#elif defined(DUK_F_PPC64)
805/* --- PowerPC 64-bit --- */
806#define DUK_USE_ARCH_STRING "ppc64"
807#if !defined(DUK_USE_BYTEORDER)
808#define DUK_USE_BYTEORDER 3
809#endif
810#if !defined(DUK_USE_ALIGN_BY)
811#define DUK_USE_ALIGN_BY 8
812#endif
813#undef DUK_USE_PACKED_TVAL
814#define DUK_F_PACKED_TVAL_PROVIDED
815#elif defined(DUK_F_SPARC32)
816/* --- SPARC 32-bit --- */
817#define DUK_USE_ARCH_STRING "sparc32"
818/* SPARC byte order varies so rely on autodetection. */
819#if !defined(DUK_USE_ALIGN_BY)
820#define DUK_USE_ALIGN_BY 8
821#endif
822#define DUK_USE_PACKED_TVAL
823#define DUK_F_PACKED_TVAL_PROVIDED
824#elif defined(DUK_F_SPARC64)
825/* --- SPARC 64-bit --- */
826#define DUK_USE_ARCH_STRING "sparc64"
827/* SPARC byte order varies so rely on autodetection. */
828#if !defined(DUK_USE_ALIGN_BY)
829#define DUK_USE_ALIGN_BY 8
830#endif
831#undef DUK_USE_PACKED_TVAL
832#define DUK_F_PACKED_TVAL_PROVIDED
833#elif defined(DUK_F_SUPERH)
834/* --- SuperH --- */
835#define DUK_USE_ARCH_STRING "sh"
836/* Byte order varies, rely on autodetection. */
837/* Based on 'make checkalign' there are no alignment requirements on
838 * Linux SH4, but align by 4 is probably a good basic default.
839 */
840#if !defined(DUK_USE_ALIGN_BY)
841#define DUK_USE_ALIGN_BY 4
842#endif
843#define DUK_USE_PACKED_TVAL
844#define DUK_F_PACKED_TVAL_PROVIDED
845#elif defined(DUK_F_M68K)
846/* --- Motorola 68k --- */
847#define DUK_USE_ARCH_STRING "m68k"
848#if !defined(DUK_USE_BYTEORDER)
849#define DUK_USE_BYTEORDER 3
850#endif
851#if !defined(DUK_USE_ALIGN_BY)
852#define DUK_USE_ALIGN_BY 8
853#endif
854#define DUK_USE_PACKED_TVAL
855#define DUK_F_PACKED_TVAL_PROVIDED
856#elif defined(DUK_F_EMSCRIPTEN)
857/* --- Emscripten --- */
858#define DUK_USE_ARCH_STRING "emscripten"
859#if !defined(DUK_USE_BYTEORDER)
860#define DUK_USE_BYTEORDER 1
861#endif
862#if !defined(DUK_USE_ALIGN_BY)
863#define DUK_USE_ALIGN_BY 8
864#endif
865#undef DUK_USE_PACKED_TVAL
866#define DUK_F_PACKED_TVAL_PROVIDED
867#else
868/* --- Generic --- */
869/* These are necessary wild guesses. */
870#define DUK_USE_ARCH_STRING "generic"
871/* Rely on autodetection for byte order, alignment, and packed tval. */
872#endif /* autodetect architecture */
873
874/*
875 * Compiler autodetection
876 */
877
878#if defined(DUK_F_CLANG)
879/* --- Clang --- */
880#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
881/* C99 / C++11 and above: rely on va_copy() which is required. */
882#define DUK_VA_COPY(dest,src) va_copy(dest,src)
883#else
884/* Clang: assume we have __va_copy() in non-C99 mode. */
885#define DUK_VA_COPY(dest,src) __va_copy(dest,src)
886#endif
887
888#define DUK_NORETURN(decl) decl __attribute__((noreturn))
889
890#if defined(__clang__) && defined(__has_builtin)
891#if __has_builtin(__builtin_unreachable)
892#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0)
893#endif
894#endif
895
896#define DUK_USE_BRANCH_HINTS
897#define DUK_LIKELY(x) __builtin_expect((x), 1)
898#define DUK_UNLIKELY(x) __builtin_expect((x), 0)
899#if defined(__clang__) && defined(__has_builtin)
900#if __has_builtin(__builtin_unpredictable)
901#define DUK_UNPREDICTABLE(x) __builtin_unpredictable((x))
902#endif
903#endif
904
905#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
906#define DUK_NOINLINE __attribute__((noinline))
907#define DUK_INLINE inline
908#define DUK_ALWAYS_INLINE inline __attribute__((always_inline))
909#endif
910
911#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
912/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
913 * compiling Duktape or the application.
914 */
915#if defined(DUK_COMPILING_DUKTAPE)
916#define DUK_EXTERNAL_DECL extern __declspec(dllexport)
917#define DUK_EXTERNAL __declspec(dllexport)
918#else
919#define DUK_EXTERNAL_DECL extern __declspec(dllimport)
920#define DUK_EXTERNAL should_not_happen
921#endif
922#if defined(DUK_SINGLE_FILE)
923#define DUK_INTERNAL_DECL static
924#define DUK_INTERNAL static
925#else
926#define DUK_INTERNAL_DECL extern
927#define DUK_INTERNAL /*empty*/
928#endif
929#define DUK_LOCAL_DECL static
930#define DUK_LOCAL static
931#else
932#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern
933#define DUK_EXTERNAL __attribute__ ((visibility("default")))
934#if defined(DUK_SINGLE_FILE)
935#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
936/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
937 * Clang. Based on documentation it should suffice to have the attribute
938 * in the declaration only, but in practice some warnings are generated unless
939 * the attribute is also applied to the definition.
940 */
941#define DUK_INTERNAL_DECL static __attribute__ ((unused))
942#define DUK_INTERNAL static __attribute__ ((unused))
943#else
944#define DUK_INTERNAL_DECL static
945#define DUK_INTERNAL static
946#endif
947#else
948#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
949#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
950#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
951#else
952#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern
953#define DUK_INTERNAL __attribute__ ((visibility("hidden")))
954#endif
955#endif
956#define DUK_LOCAL_DECL static
957#define DUK_LOCAL static
958#endif
959
960#if defined(DUK_F_CPP)
961#define DUK_USE_COMPILER_STRING "clang"
962#else
963#define DUK_USE_COMPILER_STRING "clang"
964#endif
965
966#undef DUK_USE_VARIADIC_MACROS
967#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
968#define DUK_USE_VARIADIC_MACROS
969#endif
970
971#define DUK_USE_UNION_INITIALIZERS
972
973#undef DUK_USE_FLEX_C99
974#undef DUK_USE_FLEX_ZEROSIZE
975#undef DUK_USE_FLEX_ONESIZE
976#if defined(DUK_F_C99)
977#define DUK_USE_FLEX_C99
978#else
979#define DUK_USE_FLEX_ZEROSIZE
980#endif
981
982#undef DUK_USE_GCC_PRAGMAS
983#define DUK_USE_PACK_CLANG_ATTR
984#elif defined(DUK_F_GCC)
985/* --- GCC --- */
986#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
987/* C99 / C++11 and above: rely on va_copy() which is required. */
988#define DUK_VA_COPY(dest,src) va_copy(dest,src)
989#else
990/* GCC: assume we have __va_copy() in non-C99 mode. */
991#define DUK_VA_COPY(dest,src) __va_copy(dest,src)
992#endif
993
994#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 20500L)
995/* since gcc-2.5 */
996#define DUK_NORETURN(decl) decl __attribute__((noreturn))
997#endif
998
999#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L)
1000/* since gcc-4.5 */
1001#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0)
1002#endif
1003
1004#define DUK_USE_BRANCH_HINTS
1005#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40500L)
1006/* GCC: test not very accurate; enable only in relatively recent builds
1007 * because of bugs in gcc-4.4 (http://lists.debian.org/debian-gcc/2010/04/msg00000.html)
1008 */
1009#define DUK_LIKELY(x) __builtin_expect((x), 1)
1010#define DUK_UNLIKELY(x) __builtin_expect((x), 0)
1011#endif
1012/* XXX: equivalent of clang __builtin_unpredictable? */
1013
1014#if (defined(DUK_F_C99) || defined(DUK_F_CPP11)) && \
1015 defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 30101)
1016#define DUK_NOINLINE __attribute__((noinline))
1017#define DUK_INLINE inline
1018#define DUK_ALWAYS_INLINE inline __attribute__((always_inline))
1019#endif
1020
1021#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1022/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1023 * compiling Duktape or the application.
1024 */
1025#if defined(DUK_COMPILING_DUKTAPE)
1026#define DUK_EXTERNAL_DECL extern __declspec(dllexport)
1027#define DUK_EXTERNAL __declspec(dllexport)
1028#else
1029#define DUK_EXTERNAL_DECL extern __declspec(dllimport)
1030#define DUK_EXTERNAL should_not_happen
1031#endif
1032#if defined(DUK_SINGLE_FILE)
1033#define DUK_INTERNAL_DECL static
1034#define DUK_INTERNAL static
1035#else
1036#define DUK_INTERNAL_DECL extern
1037#define DUK_INTERNAL /*empty*/
1038#endif
1039#define DUK_LOCAL_DECL static
1040#define DUK_LOCAL static
1041#elif defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40000)
1042#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern
1043#define DUK_EXTERNAL __attribute__ ((visibility("default")))
1044#if defined(DUK_SINGLE_FILE)
1045#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1046/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1047 * Clang. Based on documentation it should suffice to have the attribute
1048 * in the declaration only, but in practice some warnings are generated unless
1049 * the attribute is also applied to the definition.
1050 */
1051#define DUK_INTERNAL_DECL static __attribute__ ((unused))
1052#define DUK_INTERNAL static __attribute__ ((unused))
1053#else
1054#define DUK_INTERNAL_DECL static
1055#define DUK_INTERNAL static
1056#endif
1057#else
1058#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1059#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1060#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1061#else
1062#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern
1063#define DUK_INTERNAL __attribute__ ((visibility("hidden")))
1064#endif
1065#endif
1066#define DUK_LOCAL_DECL static
1067#define DUK_LOCAL static
1068#endif
1069
1070#if defined(DUK_F_MINGW)
1071#if defined(DUK_F_CPP)
1072#define DUK_USE_COMPILER_STRING "mingw++"
1073#else
1074#define DUK_USE_COMPILER_STRING "mingw"
1075#endif
1076#else
1077#if defined(DUK_F_CPP)
1078#define DUK_USE_COMPILER_STRING "g++"
1079#else
1080#define DUK_USE_COMPILER_STRING "gcc"
1081#endif
1082#endif
1083
1084#undef DUK_USE_VARIADIC_MACROS
1085#if defined(DUK_F_C99) || (defined(DUK_F_CPP11) && defined(__GNUC__))
1086#define DUK_USE_VARIADIC_MACROS
1087#endif
1088
1089#define DUK_USE_UNION_INITIALIZERS
1090
1091#undef DUK_USE_FLEX_C99
1092#undef DUK_USE_FLEX_ZEROSIZE
1093#undef DUK_USE_FLEX_ONESIZE
1094#if defined(DUK_F_C99)
1095#define DUK_USE_FLEX_C99
1096#else
1097#define DUK_USE_FLEX_ZEROSIZE
1098#endif
1099
1100#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION >= 40600)
1101#define DUK_USE_GCC_PRAGMAS
1102#else
1103#undef DUK_USE_GCC_PRAGMAS
1104#endif
1105
1106#define DUK_USE_PACK_GCC_ATTR
1107#elif defined(DUK_F_MSVC)
1108/* --- MSVC --- */
1109/* http://msdn.microsoft.com/en-us/library/aa235362(VS.60).aspx */
1110#define DUK_NORETURN(decl) __declspec(noreturn) decl
1111
1112/* XXX: DUK_UNREACHABLE for msvc? */
1113
1114#undef DUK_USE_BRANCH_HINTS
1115
1116/* XXX: DUK_LIKELY, DUK_UNLIKELY for msvc? */
1117/* XXX: DUK_NOINLINE, DUK_INLINE, DUK_ALWAYS_INLINE for msvc? */
1118
1119#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
1120/* MSVC dllexport/dllimport: appropriate __declspec depends on whether we're
1121 * compiling Duktape or the application.
1122 */
1123#if defined(DUK_COMPILING_DUKTAPE)
1124#define DUK_EXTERNAL_DECL extern __declspec(dllexport)
1125#define DUK_EXTERNAL __declspec(dllexport)
1126#else
1127#define DUK_EXTERNAL_DECL extern __declspec(dllimport)
1128#define DUK_EXTERNAL should_not_happen
1129#endif
1130#if defined(DUK_SINGLE_FILE)
1131#define DUK_INTERNAL_DECL static
1132#define DUK_INTERNAL static
1133#else
1134#define DUK_INTERNAL_DECL extern
1135#define DUK_INTERNAL /*empty*/
1136#endif
1137#define DUK_LOCAL_DECL static
1138#define DUK_LOCAL static
1139#endif
1140
1141#if defined(DUK_F_CPP)
1142#define DUK_USE_COMPILER_STRING "msvc++"
1143#else
1144#define DUK_USE_COMPILER_STRING "msvc"
1145#endif
1146
1147#undef DUK_USE_VARIADIC_MACROS
1148#if defined(DUK_F_C99)
1149#define DUK_USE_VARIADIC_MACROS
1150#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
1151/* VS2005+ should have variadic macros even when they're not C99. */
1152#define DUK_USE_VARIADIC_MACROS
1153#endif
1154
1155#undef DUK_USE_UNION_INITIALIZERS
1156#if defined(_MSC_VER) && (_MSC_VER >= 1800)
1157/* VS2013+ supports union initializers but there's a bug involving union-inside-struct:
1158 * https://connect.microsoft.com/VisualStudio/feedback/details/805981
1159 * The bug was fixed (at least) in VS2015 so check for VS2015 for now:
1160 * https://blogs.msdn.microsoft.com/vcblog/2015/07/01/c-compiler-front-end-fixes-in-vs2015/
1161 * Manually tested using VS2013, CL reports 18.00.31101, so enable for VS2013 too.
1162 */
1163#define DUK_USE_UNION_INITIALIZERS
1164#endif
1165
1166#undef DUK_USE_FLEX_C99
1167#undef DUK_USE_FLEX_ZEROSIZE
1168#undef DUK_USE_FLEX_ONESIZE
1169#if defined(DUK_F_C99)
1170#define DUK_USE_FLEX_C99
1171#else
1172#define DUK_USE_FLEX_ZEROSIZE
1173#endif
1174
1175#undef DUK_USE_GCC_PRAGMAS
1176
1177#define DUK_USE_PACK_MSVC_PRAGMA
1178
1179/* These have been tested from VS2008 onwards; may work in older VS versions
1180 * too but not enabled by default.
1181 */
1182#if defined(_MSC_VER) && (_MSC_VER >= 1500)
1183#define DUK_NOINLINE __declspec(noinline)
1184#define DUK_INLINE __inline
1185#define DUK_ALWAYS_INLINE __forceinline
1186#endif
1187
1188#if defined(_MSC_VER) && (_MSC_VER >= 1900)
1189#define DUK_SNPRINTF snprintf
1190#define DUK_VSNPRINTF vsnprintf
1191#else
1192/* (v)snprintf() is missing before MSVC 2015. Note that _(v)snprintf() does
1193 * NOT NUL terminate on truncation, but Duktape code never assumes that.
1194 * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
1195 */
1196#define DUK_SNPRINTF _snprintf
1197#define DUK_VSNPRINTF _vsnprintf
1198#endif
1199
1200/* Avoid warning when doing DUK_UNREF(some_function). */
1201#define DUK_UNREF(x) do { __pragma(warning(suppress:4100 4101 4550 4551)) (x); } while (0)
1202#elif defined(DUK_F_EMSCRIPTEN)
1203/* --- Emscripten --- */
1204#define DUK_NORETURN(decl) decl __attribute__((noreturn))
1205
1206#if defined(__clang__) && defined(__has_builtin)
1207#if __has_builtin(__builtin_unreachable)
1208#define DUK_UNREACHABLE() do { __builtin_unreachable(); } while (0)
1209#endif
1210#endif
1211
1212#define DUK_USE_BRANCH_HINTS
1213#define DUK_LIKELY(x) __builtin_expect((x), 1)
1214#define DUK_UNLIKELY(x) __builtin_expect((x), 0)
1215#if defined(__clang__) && defined(__has_builtin)
1216#if __has_builtin(__builtin_unpredictable)
1217#define DUK_UNPREDICTABLE(x) __builtin_unpredictable((x))
1218#endif
1219#endif
1220
1221#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1222#define DUK_NOINLINE __attribute__((noinline))
1223#define DUK_INLINE inline
1224#define DUK_ALWAYS_INLINE inline __attribute__((always_inline))
1225#endif
1226
1227#define DUK_EXTERNAL_DECL __attribute__ ((visibility("default"))) extern
1228#define DUK_EXTERNAL __attribute__ ((visibility("default")))
1229#if defined(DUK_SINGLE_FILE)
1230#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1231/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
1232 * Clang. Based on documentation it should suffice to have the attribute
1233 * in the declaration only, but in practice some warnings are generated unless
1234 * the attribute is also applied to the definition.
1235 */
1236#define DUK_INTERNAL_DECL static __attribute__ ((unused))
1237#define DUK_INTERNAL static __attribute__ ((unused))
1238#else
1239#define DUK_INTERNAL_DECL static
1240#define DUK_INTERNAL static
1241#endif
1242#else
1243#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
1244#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
1245#define DUK_INTERNAL __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
1246#else
1247#define DUK_INTERNAL_DECL __attribute__ ((visibility("hidden"))) extern
1248#define DUK_INTERNAL __attribute__ ((visibility("hidden")))
1249#endif
1250#endif
1251#define DUK_LOCAL_DECL static
1252#define DUK_LOCAL static
1253
1254#define DUK_USE_COMPILER_STRING "emscripten"
1255
1256#undef DUK_USE_VARIADIC_MACROS
1257#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1258#define DUK_USE_VARIADIC_MACROS
1259#endif
1260
1261#define DUK_USE_UNION_INITIALIZERS
1262
1263#undef DUK_USE_FLEX_C99
1264#undef DUK_USE_FLEX_ZEROSIZE
1265#undef DUK_USE_FLEX_ONESIZE
1266#if defined(DUK_F_C99)
1267#define DUK_USE_FLEX_C99
1268#else
1269#define DUK_USE_FLEX_ZEROSIZE
1270#endif
1271
1272#undef DUK_USE_GCC_PRAGMAS
1273#define DUK_USE_PACK_CLANG_ATTR
1274#elif defined(DUK_F_TINYC)
1275/* --- TinyC --- */
1276#undef DUK_USE_BRANCH_HINTS
1277
1278#if defined(DUK_F_CPP)
1279#define DUK_USE_COMPILER_STRING "tinyc++"
1280#else
1281#define DUK_USE_COMPILER_STRING "tinyc"
1282#endif
1283
1284/* http://bellard.org/tcc/tcc-doc.html#SEC7 */
1285#define DUK_USE_VARIADIC_MACROS
1286
1287#define DUK_USE_UNION_INITIALIZERS
1288
1289/* Most portable, wastes space */
1290#define DUK_USE_FLEX_ONESIZE
1291
1292/* Most portable, potentially wastes space */
1293#define DUK_USE_PACK_DUMMY_MEMBER
1294#elif defined(DUK_F_VBCC)
1295/* --- VBCC --- */
1296#undef DUK_USE_BRANCH_HINTS
1297
1298#if defined(DUK_F_CPP)
1299#define DUK_USE_COMPILER_STRING "vbcc-c++"
1300#else
1301#define DUK_USE_COMPILER_STRING "vbcc"
1302#endif
1303
1304#undef DUK_USE_VARIADIC_MACROS
1305#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1306#define DUK_USE_VARIADIC_MACROS
1307#endif
1308
1309/* VBCC supports C99 so check only for C99 for union initializer support.
1310 * Designated union initializers would possibly work even without a C99 check.
1311 */
1312#undef DUK_USE_UNION_INITIALIZERS
1313#if defined(DUK_F_C99)
1314#define DUK_USE_UNION_INITIALIZERS
1315#endif
1316
1317#define DUK_USE_FLEX_ZEROSIZE
1318#define DUK_USE_PACK_DUMMY_MEMBER
1319#elif defined(DUK_F_BCC)
1320/* --- Bruce's C compiler --- */
1321#undef DUK_USE_BRANCH_HINTS
1322
1323#if defined(DUK_F_CPP)
1324#define DUK_USE_COMPILER_STRING "bcc++"
1325#else
1326#define DUK_USE_COMPILER_STRING "bcc"
1327#endif
1328
1329/* Most portable */
1330#undef DUK_USE_VARIADIC_MACROS
1331
1332/* Most portable, wastes space */
1333#undef DUK_USE_UNION_INITIALIZERS
1334
1335/* Most portable, wastes space */
1336#define DUK_USE_FLEX_ONESIZE
1337
1338/* Most portable, potentially wastes space */
1339#define DUK_USE_PACK_DUMMY_MEMBER
1340
1341/* BCC, assume we're on x86. */
1342#if !defined(DUK_USE_BYTEORDER)
1343#define DUK_USE_BYTEORDER 1
1344#endif
1345#else
1346/* --- Generic --- */
1347#undef DUK_USE_BRANCH_HINTS
1348
1349#if defined(DUK_F_CPP)
1350#define DUK_USE_COMPILER_STRING "generic-c++"
1351#else
1352#define DUK_USE_COMPILER_STRING "generic"
1353#endif
1354
1355#undef DUK_USE_VARIADIC_MACROS
1356#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
1357#define DUK_USE_VARIADIC_MACROS
1358#endif
1359
1360/* C++ doesn't have standard designated union initializers ({ .foo = 1 }). */
1361#undef DUK_USE_UNION_INITIALIZERS
1362#if defined(DUK_F_C99)
1363#define DUK_USE_UNION_INITIALIZERS
1364#endif
1365
1366/* Most portable, wastes space */
1367#define DUK_USE_FLEX_ONESIZE
1368
1369/* Most portable, potentially wastes space */
1370#define DUK_USE_PACK_DUMMY_MEMBER
1371#endif /* autodetect compiler */
1372
1373/* uclibc */
1374#if defined(__UCLIBC__)
1375#define DUK_F_UCLIBC
1376#endif
1377
1378/*
1379 * Wrapper typedefs and constants for integer types, also sanity check types.
1380 *
1381 * C99 typedefs are quite good but not always available, and we want to avoid
1382 * forcibly redefining the C99 typedefs. So, there are Duktape wrappers for
1383 * all C99 typedefs and Duktape code should only use these typedefs. Type
1384 * detection when C99 is not supported is best effort and may end up detecting
1385 * some types incorrectly.
1386 *
1387 * Pointer sizes are a portability problem: pointers to different types may
1388 * have a different size and function pointers are very difficult to manage
1389 * portably.
1390 *
1391 * http://en.wikipedia.org/wiki/C_data_types#Fixed-width_integer_types
1392 *
1393 * Note: there's an interesting corner case when trying to define minimum
1394 * signed integer value constants which leads to the current workaround of
1395 * defining e.g. -0x80000000 as (-0x7fffffffL - 1L). See doc/code-issues.txt
1396 * for a longer discussion.
1397 *
1398 * Note: avoid typecasts and computations in macro integer constants as they
1399 * can then no longer be used in macro relational expressions (such as
1400 * #if DUK_SIZE_MAX < 0xffffffffUL). There is internal code which relies on
1401 * being able to compare DUK_SIZE_MAX against a limit.
1402 */
1403
1404/* XXX: add feature options to force basic types from outside? */
1405
1406#if !defined(INT_MAX)
1407#error INT_MAX not defined
1408#endif
1409
1410/* Check that architecture is two's complement, standard C allows e.g.
1411 * INT_MIN to be -2**31+1 (instead of -2**31).
1412 */
1413#if defined(INT_MAX) && defined(INT_MIN)
1414#if INT_MAX != -(INT_MIN + 1)
1415#error platform does not seem complement of two
1416#endif
1417#else
1418#error cannot check complement of two
1419#endif
1420
1421/* Pointer size determination based on __WORDSIZE or architecture when
1422 * that's not available.
1423 */
1424#if defined(DUK_F_X86) || defined(DUK_F_X32) || \
1425 defined(DUK_F_M68K) || defined(DUK_F_PPC32) || \
1426 defined(DUK_F_BCC) || \
1427 (defined(__WORDSIZE) && (__WORDSIZE == 32))
1428#define DUK_F_32BIT_PTRS
1429#elif defined(DUK_F_X64) || \
1430 (defined(__WORDSIZE) && (__WORDSIZE == 64))
1431#define DUK_F_64BIT_PTRS
1432#else
1433/* not sure, not needed with C99 anyway */
1434#endif
1435
1436/* Intermediate define for 'have inttypes.h' */
1437#undef DUK_F_HAVE_INTTYPES
1438#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
1439 !(defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC))
1440/* vbcc + AmigaOS has C99 but no inttypes.h */
1441#define DUK_F_HAVE_INTTYPES
1442#elif defined(__cplusplus) && (__cplusplus >= 201103L)
1443/* C++11 apparently ratified stdint.h */
1444#define DUK_F_HAVE_INTTYPES
1445#endif
1446
1447/* Basic integer typedefs and limits, preferably from inttypes.h, otherwise
1448 * through automatic detection.
1449 */
1450#if defined(DUK_F_HAVE_INTTYPES)
1451/* C99 or compatible */
1452
1453#define DUK_F_HAVE_64BIT
1454#include <inttypes.h>
1455
1456typedef uint8_t duk_uint8_t;
1457typedef int8_t duk_int8_t;
1458typedef uint16_t duk_uint16_t;
1459typedef int16_t duk_int16_t;
1460typedef uint32_t duk_uint32_t;
1461typedef int32_t duk_int32_t;
1462typedef uint64_t duk_uint64_t;
1463typedef int64_t duk_int64_t;
1464typedef uint_least8_t duk_uint_least8_t;
1465typedef int_least8_t duk_int_least8_t;
1466typedef uint_least16_t duk_uint_least16_t;
1467typedef int_least16_t duk_int_least16_t;
1468typedef uint_least32_t duk_uint_least32_t;
1469typedef int_least32_t duk_int_least32_t;
1470typedef uint_least64_t duk_uint_least64_t;
1471typedef int_least64_t duk_int_least64_t;
1472typedef uint_fast8_t duk_uint_fast8_t;
1473typedef int_fast8_t duk_int_fast8_t;
1474typedef uint_fast16_t duk_uint_fast16_t;
1475typedef int_fast16_t duk_int_fast16_t;
1476typedef uint_fast32_t duk_uint_fast32_t;
1477typedef int_fast32_t duk_int_fast32_t;
1478typedef uint_fast64_t duk_uint_fast64_t;
1479typedef int_fast64_t duk_int_fast64_t;
1480typedef uintptr_t duk_uintptr_t;
1481typedef intptr_t duk_intptr_t;
1482typedef uintmax_t duk_uintmax_t;
1483typedef intmax_t duk_intmax_t;
1484
1485#define DUK_UINT8_MIN 0
1486#define DUK_UINT8_MAX UINT8_MAX
1487#define DUK_INT8_MIN INT8_MIN
1488#define DUK_INT8_MAX INT8_MAX
1489#define DUK_UINT_LEAST8_MIN 0
1490#define DUK_UINT_LEAST8_MAX UINT_LEAST8_MAX
1491#define DUK_INT_LEAST8_MIN INT_LEAST8_MIN
1492#define DUK_INT_LEAST8_MAX INT_LEAST8_MAX
1493#define DUK_UINT_FAST8_MIN 0
1494#define DUK_UINT_FAST8_MAX UINT_FAST8_MAX
1495#define DUK_INT_FAST8_MIN INT_FAST8_MIN
1496#define DUK_INT_FAST8_MAX INT_FAST8_MAX
1497#define DUK_UINT16_MIN 0
1498#define DUK_UINT16_MAX UINT16_MAX
1499#define DUK_INT16_MIN INT16_MIN
1500#define DUK_INT16_MAX INT16_MAX
1501#define DUK_UINT_LEAST16_MIN 0
1502#define DUK_UINT_LEAST16_MAX UINT_LEAST16_MAX
1503#define DUK_INT_LEAST16_MIN INT_LEAST16_MIN
1504#define DUK_INT_LEAST16_MAX INT_LEAST16_MAX
1505#define DUK_UINT_FAST16_MIN 0
1506#define DUK_UINT_FAST16_MAX UINT_FAST16_MAX
1507#define DUK_INT_FAST16_MIN INT_FAST16_MIN
1508#define DUK_INT_FAST16_MAX INT_FAST16_MAX
1509#define DUK_UINT32_MIN 0
1510#define DUK_UINT32_MAX UINT32_MAX
1511#define DUK_INT32_MIN INT32_MIN
1512#define DUK_INT32_MAX INT32_MAX
1513#define DUK_UINT_LEAST32_MIN 0
1514#define DUK_UINT_LEAST32_MAX UINT_LEAST32_MAX
1515#define DUK_INT_LEAST32_MIN INT_LEAST32_MIN
1516#define DUK_INT_LEAST32_MAX INT_LEAST32_MAX
1517#define DUK_UINT_FAST32_MIN 0
1518#define DUK_UINT_FAST32_MAX UINT_FAST32_MAX
1519#define DUK_INT_FAST32_MIN INT_FAST32_MIN
1520#define DUK_INT_FAST32_MAX INT_FAST32_MAX
1521#define DUK_UINT64_MIN 0
1522#define DUK_UINT64_MAX UINT64_MAX
1523#define DUK_INT64_MIN INT64_MIN
1524#define DUK_INT64_MAX INT64_MAX
1525#define DUK_UINT_LEAST64_MIN 0
1526#define DUK_UINT_LEAST64_MAX UINT_LEAST64_MAX
1527#define DUK_INT_LEAST64_MIN INT_LEAST64_MIN
1528#define DUK_INT_LEAST64_MAX INT_LEAST64_MAX
1529#define DUK_UINT_FAST64_MIN 0
1530#define DUK_UINT_FAST64_MAX UINT_FAST64_MAX
1531#define DUK_INT_FAST64_MIN INT_FAST64_MIN
1532#define DUK_INT_FAST64_MAX INT_FAST64_MAX
1533
1534#define DUK_UINTPTR_MIN 0
1535#define DUK_UINTPTR_MAX UINTPTR_MAX
1536#define DUK_INTPTR_MIN INTPTR_MIN
1537#define DUK_INTPTR_MAX INTPTR_MAX
1538
1539#define DUK_UINTMAX_MIN 0
1540#define DUK_UINTMAX_MAX UINTMAX_MAX
1541#define DUK_INTMAX_MIN INTMAX_MIN
1542#define DUK_INTMAX_MAX INTMAX_MAX
1543
1544#define DUK_SIZE_MIN 0
1545#define DUK_SIZE_MAX SIZE_MAX
1546#undef DUK_SIZE_MAX_COMPUTED
1547
1548#else /* C99 types */
1549
1550/* When C99 types are not available, we use heuristic detection to get
1551 * the basic 8, 16, 32, and (possibly) 64 bit types. The fast/least
1552 * types are then assumed to be exactly the same for now: these could
1553 * be improved per platform but C99 types are very often now available.
1554 * 64-bit types are not available on all platforms; this is OK at least
1555 * on 32-bit platforms.
1556 *
1557 * This detection code is necessarily a bit hacky and can provide typedefs
1558 * and defines that won't work correctly on some exotic platform.
1559 */
1560
1561#if (defined(CHAR_BIT) && (CHAR_BIT == 8)) || \
1562 (defined(UCHAR_MAX) && (UCHAR_MAX == 255))
1563typedef unsigned char duk_uint8_t;
1564typedef signed char duk_int8_t;
1565#else
1566#error cannot detect 8-bit type
1567#endif
1568
1569#if defined(USHRT_MAX) && (USHRT_MAX == 65535UL)
1570typedef unsigned short duk_uint16_t;
1571typedef signed short duk_int16_t;
1572#elif defined(UINT_MAX) && (UINT_MAX == 65535UL)
1573/* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */
1574typedef unsigned int duk_uint16_t;
1575typedef signed int duk_int16_t;
1576#else
1577#error cannot detect 16-bit type
1578#endif
1579
1580#if defined(UINT_MAX) && (UINT_MAX == 4294967295UL)
1581typedef unsigned int duk_uint32_t;
1582typedef signed int duk_int32_t;
1583#elif defined(ULONG_MAX) && (ULONG_MAX == 4294967295UL)
1584/* On some platforms int is 16-bit but long is 32-bit (e.g. PureC) */
1585typedef unsigned long duk_uint32_t;
1586typedef signed long duk_int32_t;
1587#else
1588#error cannot detect 32-bit type
1589#endif
1590
1591/* 64-bit type detection is a bit tricky.
1592 *
1593 * ULLONG_MAX is a standard define. __LONG_LONG_MAX__ and __ULONG_LONG_MAX__
1594 * are used by at least GCC (even if system headers don't provide ULLONG_MAX).
1595 * Some GCC variants may provide __LONG_LONG_MAX__ but not __ULONG_LONG_MAX__.
1596 *
1597 * ULL / LL constants are rejected / warned about by some compilers, even if
1598 * the compiler has a 64-bit type and the compiler/system headers provide an
1599 * unsupported constant (ULL/LL)! Try to avoid using ULL / LL constants.
1600 * As a side effect we can only check that e.g. ULONG_MAX is larger than 32
1601 * bits but can't be sure it is exactly 64 bits. Self tests will catch such
1602 * cases.
1603 */
1604#undef DUK_F_HAVE_64BIT
1605#if !defined(DUK_F_HAVE_64BIT) && defined(ULONG_MAX)
1606#if (ULONG_MAX > 4294967295UL)
1607#define DUK_F_HAVE_64BIT
1608typedef unsigned long duk_uint64_t;
1609typedef signed long duk_int64_t;
1610#endif
1611#endif
1612#if !defined(DUK_F_HAVE_64BIT) && defined(ULLONG_MAX)
1613#if (ULLONG_MAX > 4294967295UL)
1614#define DUK_F_HAVE_64BIT
1615typedef unsigned long long duk_uint64_t;
1616typedef signed long long duk_int64_t;
1617#endif
1618#endif
1619#if !defined(DUK_F_HAVE_64BIT) && defined(__ULONG_LONG_MAX__)
1620#if (__ULONG_LONG_MAX__ > 4294967295UL)
1621#define DUK_F_HAVE_64BIT
1622typedef unsigned long long duk_uint64_t;
1623typedef signed long long duk_int64_t;
1624#endif
1625#endif
1626#if !defined(DUK_F_HAVE_64BIT) && defined(__LONG_LONG_MAX__)
1627#if (__LONG_LONG_MAX__ > 2147483647L)
1628#define DUK_F_HAVE_64BIT
1629typedef unsigned long long duk_uint64_t;
1630typedef signed long long duk_int64_t;
1631#endif
1632#endif
1633#if !defined(DUK_F_HAVE_64BIT) && \
1634 (defined(DUK_F_MINGW) || defined(DUK_F_MSVC))
1635/* Both MinGW and MSVC have a 64-bit type. */
1636#define DUK_F_HAVE_64BIT
1637typedef unsigned long duk_uint64_t;
1638typedef signed long duk_int64_t;
1639#endif
1640#if !defined(DUK_F_HAVE_64BIT)
1641/* cannot detect 64-bit type, not always needed so don't error */
1642#endif
1643
1644typedef duk_uint8_t duk_uint_least8_t;
1645typedef duk_int8_t duk_int_least8_t;
1646typedef duk_uint16_t duk_uint_least16_t;
1647typedef duk_int16_t duk_int_least16_t;
1648typedef duk_uint32_t duk_uint_least32_t;
1649typedef duk_int32_t duk_int_least32_t;
1650typedef duk_uint8_t duk_uint_fast8_t;
1651typedef duk_int8_t duk_int_fast8_t;
1652typedef duk_uint16_t duk_uint_fast16_t;
1653typedef duk_int16_t duk_int_fast16_t;
1654typedef duk_uint32_t duk_uint_fast32_t;
1655typedef duk_int32_t duk_int_fast32_t;
1656#if defined(DUK_F_HAVE_64BIT)
1657typedef duk_uint64_t duk_uint_least64_t;
1658typedef duk_int64_t duk_int_least64_t;
1659typedef duk_uint64_t duk_uint_fast64_t;
1660typedef duk_int64_t duk_int_fast64_t;
1661#endif
1662#if defined(DUK_F_HAVE_64BIT)
1663typedef duk_uint64_t duk_uintmax_t;
1664typedef duk_int64_t duk_intmax_t;
1665#else
1666typedef duk_uint32_t duk_uintmax_t;
1667typedef duk_int32_t duk_intmax_t;
1668#endif
1669
1670/* Note: the funny looking computations for signed minimum 16-bit, 32-bit, and
1671 * 64-bit values are intentional as the obvious forms (e.g. -0x80000000L) are
1672 * -not- portable. See code-issues.txt for a detailed discussion.
1673 */
1674#define DUK_UINT8_MIN 0UL
1675#define DUK_UINT8_MAX 0xffUL
1676#define DUK_INT8_MIN (-0x80L)
1677#define DUK_INT8_MAX 0x7fL
1678#define DUK_UINT_LEAST8_MIN 0UL
1679#define DUK_UINT_LEAST8_MAX 0xffUL
1680#define DUK_INT_LEAST8_MIN (-0x80L)
1681#define DUK_INT_LEAST8_MAX 0x7fL
1682#define DUK_UINT_FAST8_MIN 0UL
1683#define DUK_UINT_FAST8_MAX 0xffUL
1684#define DUK_INT_FAST8_MIN (-0x80L)
1685#define DUK_INT_FAST8_MAX 0x7fL
1686#define DUK_UINT16_MIN 0UL
1687#define DUK_UINT16_MAX 0xffffUL
1688#define DUK_INT16_MIN (-0x7fffL - 1L)
1689#define DUK_INT16_MAX 0x7fffL
1690#define DUK_UINT_LEAST16_MIN 0UL
1691#define DUK_UINT_LEAST16_MAX 0xffffUL
1692#define DUK_INT_LEAST16_MIN (-0x7fffL - 1L)
1693#define DUK_INT_LEAST16_MAX 0x7fffL
1694#define DUK_UINT_FAST16_MIN 0UL
1695#define DUK_UINT_FAST16_MAX 0xffffUL
1696#define DUK_INT_FAST16_MIN (-0x7fffL - 1L)
1697#define DUK_INT_FAST16_MAX 0x7fffL
1698#define DUK_UINT32_MIN 0UL
1699#define DUK_UINT32_MAX 0xffffffffUL
1700#define DUK_INT32_MIN (-0x7fffffffL - 1L)
1701#define DUK_INT32_MAX 0x7fffffffL
1702#define DUK_UINT_LEAST32_MIN 0UL
1703#define DUK_UINT_LEAST32_MAX 0xffffffffUL
1704#define DUK_INT_LEAST32_MIN (-0x7fffffffL - 1L)
1705#define DUK_INT_LEAST32_MAX 0x7fffffffL
1706#define DUK_UINT_FAST32_MIN 0UL
1707#define DUK_UINT_FAST32_MAX 0xffffffffUL
1708#define DUK_INT_FAST32_MIN (-0x7fffffffL - 1L)
1709#define DUK_INT_FAST32_MAX 0x7fffffffL
1710
1711/* 64-bit constants. Since LL / ULL constants are not always available,
1712 * use computed values. These values can't be used in preprocessor
1713 * comparisons; flag them as such.
1714 */
1715#if defined(DUK_F_HAVE_64BIT)
1716#define DUK_UINT64_MIN ((duk_uint64_t) 0)
1717#define DUK_UINT64_MAX ((duk_uint64_t) -1)
1718#define DUK_INT64_MIN ((duk_int64_t) (~(DUK_UINT64_MAX >> 1)))
1719#define DUK_INT64_MAX ((duk_int64_t) (DUK_UINT64_MAX >> 1))
1720#define DUK_UINT_LEAST64_MIN DUK_UINT64_MIN
1721#define DUK_UINT_LEAST64_MAX DUK_UINT64_MAX
1722#define DUK_INT_LEAST64_MIN DUK_INT64_MIN
1723#define DUK_INT_LEAST64_MAX DUK_INT64_MAX
1724#define DUK_UINT_FAST64_MIN DUK_UINT64_MIN
1725#define DUK_UINT_FAST64_MAX DUK_UINT64_MAX
1726#define DUK_INT_FAST64_MIN DUK_INT64_MIN
1727#define DUK_INT_FAST64_MAX DUK_INT64_MAX
1728#define DUK_UINT64_MIN_COMPUTED
1729#define DUK_UINT64_MAX_COMPUTED
1730#define DUK_INT64_MIN_COMPUTED
1731#define DUK_INT64_MAX_COMPUTED
1732#define DUK_UINT_LEAST64_MIN_COMPUTED
1733#define DUK_UINT_LEAST64_MAX_COMPUTED
1734#define DUK_INT_LEAST64_MIN_COMPUTED
1735#define DUK_INT_LEAST64_MAX_COMPUTED
1736#define DUK_UINT_FAST64_MIN_COMPUTED
1737#define DUK_UINT_FAST64_MAX_COMPUTED
1738#define DUK_INT_FAST64_MIN_COMPUTED
1739#define DUK_INT_FAST64_MAX_COMPUTED
1740#endif
1741
1742#if defined(DUK_F_HAVE_64BIT)
1743#define DUK_UINTMAX_MIN DUK_UINT64_MIN
1744#define DUK_UINTMAX_MAX DUK_UINT64_MAX
1745#define DUK_INTMAX_MIN DUK_INT64_MIN
1746#define DUK_INTMAX_MAX DUK_INT64_MAX
1747#define DUK_UINTMAX_MIN_COMPUTED
1748#define DUK_UINTMAX_MAX_COMPUTED
1749#define DUK_INTMAX_MIN_COMPUTED
1750#define DUK_INTMAX_MAX_COMPUTED
1751#else
1752#define DUK_UINTMAX_MIN 0UL
1753#define DUK_UINTMAX_MAX 0xffffffffUL
1754#define DUK_INTMAX_MIN (-0x7fffffffL - 1L)
1755#define DUK_INTMAX_MAX 0x7fffffffL
1756#endif
1757
1758/* This detection is not very reliable. */
1759#if defined(DUK_F_32BIT_PTRS)
1760typedef duk_int32_t duk_intptr_t;
1761typedef duk_uint32_t duk_uintptr_t;
1762#define DUK_UINTPTR_MIN DUK_UINT32_MIN
1763#define DUK_UINTPTR_MAX DUK_UINT32_MAX
1764#define DUK_INTPTR_MIN DUK_INT32_MIN
1765#define DUK_INTPTR_MAX DUK_INT32_MAX
1766#elif defined(DUK_F_64BIT_PTRS) && defined(DUK_F_HAVE_64BIT)
1767typedef duk_int64_t duk_intptr_t;
1768typedef duk_uint64_t duk_uintptr_t;
1769#define DUK_UINTPTR_MIN DUK_UINT64_MIN
1770#define DUK_UINTPTR_MAX DUK_UINT64_MAX
1771#define DUK_INTPTR_MIN DUK_INT64_MIN
1772#define DUK_INTPTR_MAX DUK_INT64_MAX
1773#define DUK_UINTPTR_MIN_COMPUTED
1774#define DUK_UINTPTR_MAX_COMPUTED
1775#define DUK_INTPTR_MIN_COMPUTED
1776#define DUK_INTPTR_MAX_COMPUTED
1777#else
1778#error cannot determine intptr type
1779#endif
1780
1781/* SIZE_MAX may be missing so use an approximate value for it. */
1782#undef DUK_SIZE_MAX_COMPUTED
1783#if !defined(SIZE_MAX)
1784#define DUK_SIZE_MAX_COMPUTED
1785#define SIZE_MAX ((size_t) (-1))
1786#endif
1787#define DUK_SIZE_MIN 0
1788#define DUK_SIZE_MAX SIZE_MAX
1789
1790#endif /* C99 types */
1791
1792/* A few types are assumed to always exist. */
1793typedef size_t duk_size_t;
1794typedef ptrdiff_t duk_ptrdiff_t;
1795
1796/* The best type for an "all around int" in Duktape internals is "at least
1797 * 32 bit signed integer" which is most convenient. Same for unsigned type.
1798 * Prefer 'int' when large enough, as it is almost always a convenient type.
1799 */
1800#if defined(UINT_MAX) && (UINT_MAX >= 0xffffffffUL)
1801typedef int duk_int_t;
1802typedef unsigned int duk_uint_t;
1803#define DUK_INT_MIN INT_MIN
1804#define DUK_INT_MAX INT_MAX
1805#define DUK_UINT_MIN 0
1806#define DUK_UINT_MAX UINT_MAX
1807#else
1808typedef duk_int_fast32_t duk_int_t;
1809typedef duk_uint_fast32_t duk_uint_t;
1810#define DUK_INT_MIN DUK_INT_FAST32_MIN
1811#define DUK_INT_MAX DUK_INT_FAST32_MAX
1812#define DUK_UINT_MIN DUK_UINT_FAST32_MIN
1813#define DUK_UINT_MAX DUK_UINT_FAST32_MAX
1814#endif
1815
1816/* Same as 'duk_int_t' but guaranteed to be a 'fast' variant if this
1817 * distinction matters for the CPU. These types are used mainly in the
1818 * executor where it might really matter.
1819 */
1820typedef duk_int_fast32_t duk_int_fast_t;
1821typedef duk_uint_fast32_t duk_uint_fast_t;
1822#define DUK_INT_FAST_MIN DUK_INT_FAST32_MIN
1823#define DUK_INT_FAST_MAX DUK_INT_FAST32_MAX
1824#define DUK_UINT_FAST_MIN DUK_UINT_FAST32_MIN
1825#define DUK_UINT_FAST_MAX DUK_UINT_FAST32_MAX
1826
1827/* Small integers (16 bits or more) can fall back to the 'int' type, but
1828 * have a typedef so they are marked "small" explicitly.
1829 */
1830typedef int duk_small_int_t;
1831typedef unsigned int duk_small_uint_t;
1832#define DUK_SMALL_INT_MIN INT_MIN
1833#define DUK_SMALL_INT_MAX INT_MAX
1834#define DUK_SMALL_UINT_MIN 0
1835#define DUK_SMALL_UINT_MAX UINT_MAX
1836
1837/* Fast variants of small integers, again for really fast paths like the
1838 * executor.
1839 */
1840typedef duk_int_fast16_t duk_small_int_fast_t;
1841typedef duk_uint_fast16_t duk_small_uint_fast_t;
1842#define DUK_SMALL_INT_FAST_MIN DUK_INT_FAST16_MIN
1843#define DUK_SMALL_INT_FAST_MAX DUK_INT_FAST16_MAX
1844#define DUK_SMALL_UINT_FAST_MIN DUK_UINT_FAST16_MIN
1845#define DUK_SMALL_UINT_FAST_MAX DUK_UINT_FAST16_MAX
1846
1847/* Boolean values are represented with the platform 'int'. */
1848typedef duk_small_int_t duk_bool_t;
1849#define DUK_BOOL_MIN DUK_SMALL_INT_MIN
1850#define DUK_BOOL_MAX DUK_SMALL_INT_MAX
1851
1852/* Index values must have at least 32-bit signed range. */
1853typedef duk_int_t duk_idx_t;
1854#define DUK_IDX_MIN DUK_INT_MIN
1855#define DUK_IDX_MAX DUK_INT_MAX
1856
1857/* Unsigned index variant. */
1858typedef duk_uint_t duk_uidx_t;
1859#define DUK_UIDX_MIN DUK_UINT_MIN
1860#define DUK_UIDX_MAX DUK_UINT_MAX
1861
1862/* Array index values, could be exact 32 bits.
1863 * Currently no need for signed duk_arridx_t.
1864 */
1865typedef duk_uint_t duk_uarridx_t;
1866#define DUK_UARRIDX_MIN DUK_UINT_MIN
1867#define DUK_UARRIDX_MAX DUK_UINT_MAX
1868
1869/* Duktape/C function return value, platform int is enough for now to
1870 * represent 0, 1, or negative error code. Must be compatible with
1871 * assigning truth values (e.g. duk_ret_t rc = (foo == bar);).
1872 */
1873typedef duk_small_int_t duk_ret_t;
1874#define DUK_RET_MIN DUK_SMALL_INT_MIN
1875#define DUK_RET_MAX DUK_SMALL_INT_MAX
1876
1877/* Error codes are represented with platform int. High bits are used
1878 * for flags and such, so 32 bits are needed.
1879 */
1880typedef duk_int_t duk_errcode_t;
1881#define DUK_ERRCODE_MIN DUK_INT_MIN
1882#define DUK_ERRCODE_MAX DUK_INT_MAX
1883
1884/* Codepoint type. Must be 32 bits or more because it is used also for
1885 * internal codepoints. The type is signed because negative codepoints
1886 * are used as internal markers (e.g. to mark EOF or missing argument).
1887 * (X)UTF-8/CESU-8 encode/decode take and return an unsigned variant to
1888 * ensure duk_uint32_t casts back and forth nicely. Almost everything
1889 * else uses the signed one.
1890 */
1891typedef duk_int_t duk_codepoint_t;
1892typedef duk_uint_t duk_ucodepoint_t;
1893#define DUK_CODEPOINT_MIN DUK_INT_MIN
1894#define DUK_CODEPOINT_MAX DUK_INT_MAX
1895#define DUK_UCODEPOINT_MIN DUK_UINT_MIN
1896#define DUK_UCODEPOINT_MAX DUK_UINT_MAX
1897
1898/* IEEE float/double typedef. */
1899typedef float duk_float_t;
1900typedef double duk_double_t;
1901
1902/* We're generally assuming that we're working on a platform with a 32-bit
1903 * address space. If DUK_SIZE_MAX is a typecast value (which is necessary
1904 * if SIZE_MAX is missing), the check must be avoided because the
1905 * preprocessor can't do a comparison.
1906 */
1907#if !defined(DUK_SIZE_MAX)
1908#error DUK_SIZE_MAX is undefined, probably missing SIZE_MAX
1909#elif !defined(DUK_SIZE_MAX_COMPUTED)
1910#if DUK_SIZE_MAX < 0xffffffffUL
1911/* On some systems SIZE_MAX can be smaller than max unsigned 32-bit value
1912 * which seems incorrect if size_t is (at least) an unsigned 32-bit type.
1913 * However, it doesn't seem useful to error out compilation if this is the
1914 * case.
1915 */
1916#endif
1917#endif
1918
1919/* Type for public API calls. */
1920typedef struct duk_hthread duk_context;
1921
1922/* Check whether we should use 64-bit integers or not.
1923 *
1924 * Quite incomplete now. Use 64-bit types if detected (C99 or other detection)
1925 * unless they are known to be unreliable. For instance, 64-bit types are
1926 * available on VBCC but seem to misbehave.
1927 */
1928#if defined(DUK_F_HAVE_64BIT) && !defined(DUK_F_VBCC)
1929#define DUK_USE_64BIT_OPS
1930#else
1931#undef DUK_USE_64BIT_OPS
1932#endif
1933
1934/*
1935 * Fill-ins for platform, architecture, and compiler
1936 */
1937
1938/* An abort()-like primitive is needed by the default fatal error handler. */
1939#if !defined(DUK_ABORT)
1940#define DUK_ABORT abort
1941#endif
1942
1943#if !defined(DUK_SETJMP)
1944#define DUK_JMPBUF_TYPE jmp_buf
1945#define DUK_SETJMP(jb) setjmp((jb))
1946#define DUK_LONGJMP(jb) longjmp((jb), 1)
1947#endif
1948
1949#if 0
1950/* sigsetjmp() alternative */
1951#define DUK_JMPBUF_TYPE sigjmp_buf
1952#define DUK_SETJMP(jb) sigsetjmp((jb))
1953#define DUK_LONGJMP(jb) siglongjmp((jb), 1)
1954#endif
1955
1956/* Special naming to avoid conflict with e.g. DUK_FREE() in duk_heap.h
1957 * (which is unfortunately named). May sometimes need replacement, e.g.
1958 * some compilers don't handle zero length or NULL correctly in realloc().
1959 */
1960#if !defined(DUK_ANSI_MALLOC)
1961#define DUK_ANSI_MALLOC malloc
1962#endif
1963#if !defined(DUK_ANSI_REALLOC)
1964#define DUK_ANSI_REALLOC realloc
1965#endif
1966#if !defined(DUK_ANSI_CALLOC)
1967#define DUK_ANSI_CALLOC calloc
1968#endif
1969#if !defined(DUK_ANSI_FREE)
1970#define DUK_ANSI_FREE free
1971#endif
1972
1973/* ANSI C (various versions) and some implementations require that the
1974 * pointer arguments to memset(), memcpy(), and memmove() be valid values
1975 * even when byte size is 0 (even a NULL pointer is considered invalid in
1976 * this context). Zero-size operations as such are allowed, as long as their
1977 * pointer arguments point to a valid memory area. The DUK_MEMSET(),
1978 * DUK_MEMCPY(), and DUK_MEMMOVE() macros require this same behavior, i.e.:
1979 * (1) pointers must be valid and non-NULL, (2) zero size must otherwise be
1980 * allowed. If these are not fulfilled, a macro wrapper is needed.
1981 *
1982 * http://stackoverflow.com/questions/5243012/is-it-guaranteed-to-be-safe-to-perform-memcpy0-0-0
1983 * http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-October/011065.html
1984 *
1985 * Not sure what's the required behavior when a pointer points just past the
1986 * end of a buffer, which often happens in practice (e.g. zero size memmoves).
1987 * For example, if allocation size is 3, the following pointer would not
1988 * technically point to a valid memory byte:
1989 *
1990 * <-- alloc -->
1991 * | 0 | 1 | 2 | .....
1992 * ^-- p=3, points after last valid byte (2)
1993 */
1994#if !defined(DUK_MEMCPY)
1995#if defined(DUK_F_UCLIBC)
1996/* Old uclibcs have a broken memcpy so use memmove instead (this is overly wide
1997 * now on purpose): http://lists.uclibc.org/pipermail/uclibc-cvs/2008-October/025511.html
1998 */
1999#define DUK_MEMCPY memmove
2000#else
2001#define DUK_MEMCPY memcpy
2002#endif
2003#endif
2004#if !defined(DUK_MEMMOVE)
2005#define DUK_MEMMOVE memmove
2006#endif
2007#if !defined(DUK_MEMCMP)
2008#define DUK_MEMCMP memcmp
2009#endif
2010#if !defined(DUK_MEMSET)
2011#define DUK_MEMSET memset
2012#endif
2013#if !defined(DUK_STRLEN)
2014#define DUK_STRLEN strlen
2015#endif
2016#if !defined(DUK_STRCMP)
2017#define DUK_STRCMP strcmp
2018#endif
2019#if !defined(DUK_STRNCMP)
2020#define DUK_STRNCMP strncmp
2021#endif
2022#if !defined(DUK_SPRINTF)
2023#define DUK_SPRINTF sprintf
2024#endif
2025#if !defined(DUK_SNPRINTF)
2026/* snprintf() is technically not part of C89 but usually available. */
2027#define DUK_SNPRINTF snprintf
2028#endif
2029#if !defined(DUK_VSPRINTF)
2030#define DUK_VSPRINTF vsprintf
2031#endif
2032#if !defined(DUK_VSNPRINTF)
2033/* vsnprintf() is technically not part of C89 but usually available. */
2034#define DUK_VSNPRINTF vsnprintf
2035#endif
2036#if !defined(DUK_SSCANF)
2037#define DUK_SSCANF sscanf
2038#endif
2039#if !defined(DUK_VSSCANF)
2040#define DUK_VSSCANF vsscanf
2041#endif
2042#if !defined(DUK_MEMZERO)
2043#define DUK_MEMZERO(p,n) DUK_MEMSET((p), 0, (n))
2044#endif
2045
2046#if !defined(DUK_DOUBLE_INFINITY)
2047#undef DUK_USE_COMPUTED_INFINITY
2048#if defined(DUK_F_GCC_VERSION) && (DUK_F_GCC_VERSION < 40600)
2049/* GCC older than 4.6: avoid overflow warnings related to using INFINITY */
2050#define DUK_DOUBLE_INFINITY (__builtin_inf())
2051#elif defined(INFINITY)
2052#define DUK_DOUBLE_INFINITY ((double) INFINITY)
2053#elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC)
2054#define DUK_DOUBLE_INFINITY (1.0 / 0.0)
2055#else
2056/* In VBCC (1.0 / 0.0) results in a warning and 0.0 instead of infinity.
2057 * Use a computed infinity (initialized when a heap is created at the
2058 * latest).
2059 */
2060#define DUK_USE_COMPUTED_INFINITY
2061#define DUK_DOUBLE_INFINITY duk_computed_infinity
2062#endif
2063#endif
2064
2065#if !defined(DUK_DOUBLE_NAN)
2066#undef DUK_USE_COMPUTED_NAN
2067#if defined(NAN)
2068#define DUK_DOUBLE_NAN NAN
2069#elif !defined(DUK_F_VBCC) && !defined(DUK_F_MSVC) && !defined(DUK_F_BCC)
2070#define DUK_DOUBLE_NAN (0.0 / 0.0)
2071#else
2072/* In VBCC (0.0 / 0.0) results in a warning and 0.0 instead of NaN.
2073 * In MSVC (VS2010 Express) (0.0 / 0.0) results in a compile error.
2074 * Use a computed NaN (initialized when a heap is created at the
2075 * latest).
2076 */
2077#define DUK_USE_COMPUTED_NAN
2078#define DUK_DOUBLE_NAN duk_computed_nan
2079#endif
2080#endif
2081
2082/* Many platforms are missing fpclassify() and friends, so use replacements
2083 * if necessary. The replacement constants (FP_NAN etc) can be anything but
2084 * match Linux constants now.
2085 */
2086#undef DUK_USE_REPL_FPCLASSIFY
2087#undef DUK_USE_REPL_SIGNBIT
2088#undef DUK_USE_REPL_ISFINITE
2089#undef DUK_USE_REPL_ISNAN
2090#undef DUK_USE_REPL_ISINF
2091
2092/* Complex condition broken into separate parts. */
2093#undef DUK_F_USE_REPL_ALL
2094#if !(defined(FP_NAN) && defined(FP_INFINITE) && defined(FP_ZERO) && \
2095 defined(FP_SUBNORMAL) && defined(FP_NORMAL))
2096/* Missing some obvious constants. */
2097#define DUK_F_USE_REPL_ALL
2098#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC)
2099/* VBCC is missing the built-ins even in C99 mode (perhaps a header issue). */
2100#define DUK_F_USE_REPL_ALL
2101#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_M68K)
2102/* AmigaOS + M68K seems to have math issues even when using GCC cross
2103 * compilation. Use replacements for all AmigaOS versions on M68K
2104 * regardless of compiler.
2105 */
2106#define DUK_F_USE_REPL_ALL
2107#elif defined(DUK_F_FREEBSD) && defined(DUK_F_CLANG)
2108/* Placeholder fix for (detection is wider than necessary):
2109 * http://llvm.org/bugs/show_bug.cgi?id=17788
2110 */
2111#define DUK_F_USE_REPL_ALL
2112#elif defined(DUK_F_UCLIBC)
2113/* At least some uclibc versions have broken floating point math. For
2114 * example, fpclassify() can incorrectly classify certain NaN formats.
2115 * To be safe, use replacements.
2116 */
2117#define DUK_F_USE_REPL_ALL
2118#endif
2119
2120#if defined(DUK_F_USE_REPL_ALL)
2121#define DUK_USE_REPL_FPCLASSIFY
2122#define DUK_USE_REPL_SIGNBIT
2123#define DUK_USE_REPL_ISFINITE
2124#define DUK_USE_REPL_ISNAN
2125#define DUK_USE_REPL_ISINF
2126#define DUK_FPCLASSIFY duk_repl_fpclassify
2127#define DUK_SIGNBIT duk_repl_signbit
2128#define DUK_ISFINITE duk_repl_isfinite
2129#define DUK_ISNAN duk_repl_isnan
2130#define DUK_ISINF duk_repl_isinf
2131#define DUK_FP_NAN 0
2132#define DUK_FP_INFINITE 1
2133#define DUK_FP_ZERO 2
2134#define DUK_FP_SUBNORMAL 3
2135#define DUK_FP_NORMAL 4
2136#else
2137#define DUK_FPCLASSIFY fpclassify
2138#define DUK_SIGNBIT signbit
2139#define DUK_ISFINITE isfinite
2140#define DUK_ISNAN isnan
2141#define DUK_ISINF isinf
2142#define DUK_FP_NAN FP_NAN
2143#define DUK_FP_INFINITE FP_INFINITE
2144#define DUK_FP_ZERO FP_ZERO
2145#define DUK_FP_SUBNORMAL FP_SUBNORMAL
2146#define DUK_FP_NORMAL FP_NORMAL
2147#endif
2148
2149#if defined(DUK_F_USE_REPL_ALL)
2150#undef DUK_F_USE_REPL_ALL
2151#endif
2152
2153/* These functions don't currently need replacement but are wrapped for
2154 * completeness. Because these are used as function pointers, they need
2155 * to be defined as concrete C functions (not macros).
2156 */
2157#if !defined(DUK_FABS)
2158#define DUK_FABS fabs
2159#endif
2160#if !defined(DUK_FLOOR)
2161#define DUK_FLOOR floor
2162#endif
2163#if !defined(DUK_CEIL)
2164#define DUK_CEIL ceil
2165#endif
2166#if !defined(DUK_FMOD)
2167#define DUK_FMOD fmod
2168#endif
2169#if !defined(DUK_POW)
2170#define DUK_POW pow
2171#endif
2172#if !defined(DUK_ACOS)
2173#define DUK_ACOS acos
2174#endif
2175#if !defined(DUK_ASIN)
2176#define DUK_ASIN asin
2177#endif
2178#if !defined(DUK_ATAN)
2179#define DUK_ATAN atan
2180#endif
2181#if !defined(DUK_ATAN2)
2182#define DUK_ATAN2 atan2
2183#endif
2184#if !defined(DUK_SIN)
2185#define DUK_SIN sin
2186#endif
2187#if !defined(DUK_COS)
2188#define DUK_COS cos
2189#endif
2190#if !defined(DUK_TAN)
2191#define DUK_TAN tan
2192#endif
2193#if !defined(DUK_EXP)
2194#define DUK_EXP exp
2195#endif
2196#if !defined(DUK_LOG)
2197#define DUK_LOG log
2198#endif
2199#if !defined(DUK_SQRT)
2200#define DUK_SQRT sqrt
2201#endif
2202
2203/* The functions below exist only in C99/C++11 or later and need a workaround
2204 * for platforms that don't include them. MSVC isn't detected as C99, but
2205 * these functions also exist in MSVC 2013 and later so include a clause for
2206 * that too.
2207 */
2208#if defined(DUK_F_C99) || defined(DUK_F_CPP11) || (defined(_MSC_VER) && (_MSC_VER >= 1800))
2209#if !defined(DUK_CBRT)
2210#define DUK_CBRT cbrt
2211#endif
2212#if !defined(DUK_LOG2)
2213#define DUK_LOG2 log2
2214#endif
2215#if !defined(DUK_LOG10)
2216#define DUK_LOG10 log10
2217#endif
2218#if !defined(DUK_TRUNC)
2219#define DUK_TRUNC trunc
2220#endif
2221#endif /* DUK_F_C99 */
2222
2223/* NetBSD 6.0 x86 (at least) has a few problems with pow() semantics,
2224 * see test-bug-netbsd-math-pow.js. MinGW has similar (but different)
2225 * issues, see test-bug-mingw-math-issues.js. Enable pow() workarounds
2226 * for these targets.
2227 */
2228#undef DUK_USE_POW_WORKAROUNDS
2229#if defined(DUK_F_NETBSD) || defined(DUK_F_MINGW)
2230#define DUK_USE_POW_WORKAROUNDS
2231#endif
2232
2233/* Similar workarounds for atan2() semantics issues. MinGW issues are
2234 * documented in test-bug-mingw-math-issues.js.
2235 */
2236#undef DUK_USE_ATAN2_WORKAROUNDS
2237#if defined(DUK_F_MINGW)
2238#define DUK_USE_ATAN2_WORKAROUNDS
2239#endif
2240
2241/* Rely as little as possible on compiler behavior for NaN comparison,
2242 * signed zero handling, etc. Currently never activated but may be needed
2243 * for broken compilers.
2244 */
2245#undef DUK_USE_PARANOID_MATH
2246
2247/* There was a curious bug where test-bi-date-canceling.js would fail e.g.
2248 * on 64-bit Ubuntu, gcc-4.8.1, -m32, and no -std=c99. Some date computations
2249 * using doubles would be optimized which then broke some corner case tests.
2250 * The problem goes away by adding 'volatile' to the datetime computations.
2251 * Not sure what the actual triggering conditions are, but using this on
2252 * non-C99 systems solves the known issues and has relatively little cost
2253 * on other platforms.
2254 */
2255#undef DUK_USE_PARANOID_DATE_COMPUTATION
2256#if !defined(DUK_F_C99)
2257#define DUK_USE_PARANOID_DATE_COMPUTATION
2258#endif
2259
2260/*
2261 * Byte order and double memory layout detection
2262 *
2263 * Endianness detection is a major portability hassle because the macros
2264 * and headers are not standardized. There's even variance across UNIX
2265 * platforms. Even with "standard" headers, details like underscore count
2266 * varies between platforms, e.g. both __BYTE_ORDER and _BYTE_ORDER are used
2267 * (Crossbridge has a single underscore, for instance).
2268 *
2269 * The checks below are structured with this in mind: several approaches are
2270 * used, and at the end we check if any of them worked. This allows generic
2271 * approaches to be tried first, and platform/compiler specific hacks tried
2272 * last. As a last resort, the user can force a specific endianness, as it's
2273 * not likely that automatic detection will work on the most exotic platforms.
2274 *
2275 * Duktape supports little and big endian machines. There's also support
2276 * for a hybrid used by some ARM machines where integers are little endian
2277 * but IEEE double values use a mixed order (12345678 -> 43218765). This
2278 * byte order for doubles is referred to as "mixed endian".
2279 */
2280
2281/* GCC and Clang provide endianness defines as built-in predefines, with
2282 * leading and trailing double underscores (e.g. __BYTE_ORDER__). See
2283 * output of "make gccpredefs" and "make clangpredefs". Clang doesn't
2284 * seem to provide __FLOAT_WORD_ORDER__; assume not mixed endian for clang.
2285 * http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
2286 */
2287#if !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__)
2288#if defined(__ORDER_LITTLE_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
2289#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__)
2290#define DUK_USE_BYTEORDER 1
2291#elif defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
2292#define DUK_USE_BYTEORDER 2
2293#elif !defined(__FLOAT_WORD_ORDER__)
2294/* Float word order not known, assume not a hybrid. */
2295#define DUK_USE_BYTEORDER 1
2296#else
2297/* Byte order is little endian but cannot determine IEEE double word order. */
2298#endif /* float word order */
2299#elif defined(__ORDER_BIG_ENDIAN__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
2300#if defined(__FLOAT_WORD_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
2301#define DUK_USE_BYTEORDER 3
2302#elif !defined(__FLOAT_WORD_ORDER__)
2303/* Float word order not known, assume not a hybrid. */
2304#define DUK_USE_BYTEORDER 3
2305#else
2306/* Byte order is big endian but cannot determine IEEE double word order. */
2307#endif /* float word order */
2308#else
2309/* Cannot determine byte order; __ORDER_PDP_ENDIAN__ is related to 32-bit
2310 * integer ordering and is not relevant.
2311 */
2312#endif /* integer byte order */
2313#endif /* !defined(DUK_USE_BYTEORDER) && defined(__BYTE_ORDER__) */
2314
2315/* More or less standard endianness predefines provided by header files.
2316 * The ARM hybrid case is detected by assuming that __FLOAT_WORD_ORDER
2317 * will be big endian, see: http://lists.mysql.com/internals/443.
2318 * On some platforms some defines may be present with an empty value which
2319 * causes comparisons to fail: https://github.com/svaarala/duktape/issues/453.
2320 */
2321#if !defined(DUK_USE_BYTEORDER)
2322#if defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && (__BYTE_ORDER == __LITTLE_ENDIAN) || \
2323 defined(_BYTE_ORDER) && defined(_LITTLE_ENDIAN) && (_BYTE_ORDER == _LITTLE_ENDIAN) || \
2324 defined(__LITTLE_ENDIAN__)
2325#if defined(__FLOAT_WORD_ORDER) && defined(__LITTLE_ENDIAN) && (__FLOAT_WORD_ORDER == __LITTLE_ENDIAN) || \
2326 defined(_FLOAT_WORD_ORDER) && defined(_LITTLE_ENDIAN) && (_FLOAT_WORD_ORDER == _LITTLE_ENDIAN)
2327#define DUK_USE_BYTEORDER 1
2328#elif defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \
2329 defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN)
2330#define DUK_USE_BYTEORDER 2
2331#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER)
2332/* Float word order not known, assume not a hybrid. */
2333#define DUK_USE_BYTEORDER 1
2334#else
2335/* Byte order is little endian but cannot determine IEEE double word order. */
2336#endif /* float word order */
2337#elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && (__BYTE_ORDER == __BIG_ENDIAN) || \
2338 defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && (_BYTE_ORDER == _BIG_ENDIAN) || \
2339 defined(__BIG_ENDIAN__)
2340#if defined(__FLOAT_WORD_ORDER) && defined(__BIG_ENDIAN) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN) || \
2341 defined(_FLOAT_WORD_ORDER) && defined(_BIG_ENDIAN) && (_FLOAT_WORD_ORDER == _BIG_ENDIAN)
2342#define DUK_USE_BYTEORDER 3
2343#elif !defined(__FLOAT_WORD_ORDER) && !defined(_FLOAT_WORD_ORDER)
2344/* Float word order not known, assume not a hybrid. */
2345#define DUK_USE_BYTEORDER 3
2346#else
2347/* Byte order is big endian but cannot determine IEEE double word order. */
2348#endif /* float word order */
2349#else
2350/* Cannot determine byte order. */
2351#endif /* integer byte order */
2352#endif /* !defined(DUK_USE_BYTEORDER) */
2353
2354/* QNX gcc cross compiler seems to define e.g. __LITTLEENDIAN__ or __BIGENDIAN__:
2355 * $ /opt/qnx650/host/linux/x86/usr/bin/i486-pc-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2356 * 67:#define __LITTLEENDIAN__ 1
2357 * $ /opt/qnx650/host/linux/x86/usr/bin/mips-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2358 * 81:#define __BIGENDIAN__ 1
2359 * $ /opt/qnx650/host/linux/x86/usr/bin/arm-unknown-nto-qnx6.5.0-gcc -dM -E - </dev/null | grep -ni endian
2360 * 70:#define __LITTLEENDIAN__ 1
2361 */
2362#if !defined(DUK_USE_BYTEORDER)
2363#if defined(__LITTLEENDIAN__)
2364#define DUK_USE_BYTEORDER 1
2365#elif defined(__BIGENDIAN__)
2366#define DUK_USE_BYTEORDER 3
2367#endif
2368#endif
2369
2370/*
2371 * Alignment requirement and support for unaligned accesses
2372 *
2373 * Assume unaligned accesses are not supported unless specifically allowed
2374 * in the target platform. Some platforms may support unaligned accesses
2375 * but alignment to 4 or 8 may still be desirable.
2376 */
2377
2378/* If not provided, use safe default for alignment. */
2379#if !defined(DUK_USE_ALIGN_BY)
2380#define DUK_USE_ALIGN_BY 8
2381#endif
2382
2383/* Compiler specific hackery needed to force struct size to match aligment,
2384 * see e.g. duk_hbuffer.h.
2385 *
2386 * http://stackoverflow.com/questions/11130109/c-struct-size-alignment
2387 * http://stackoverflow.com/questions/10951039/specifying-64-bit-alignment
2388 */
2389#if !(defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_GCC_ATTR) || \
2390 defined(DUK_USE_PACK_CLANG_ATTR) || defined(DUK_USE_PACK_DUMMY_MEMBER))
2391#define DUK_USE_PACK_DUMMY_MEMBER
2392#endif
2393
2394#if !defined(DUK_VA_COPY)
2395/* We need va_copy() which is defined in C99 / C++11, so an awkward
2396 * replacement is needed for pre-C99 / pre-C++11 environments. This
2397 * will quite likely need portability hacks for some non-C99
2398 * environments.
2399 */
2400#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
2401/* C99 / C++11 and above: rely on va_copy() which is required.
2402 * Omit parenthesis on macro right side on purpose to minimize differences
2403 * to direct use.
2404 */
2405#define DUK_VA_COPY(dest,src) va_copy(dest,src)
2406#else
2407/* Pre-C99: va_list type is implementation dependent. This replacement
2408 * assumes it is a plain value so that a simple assignment will work.
2409 * This is not the case on all platforms (it may be a single-array element,
2410 * for instance).
2411 */
2412#define DUK_VA_COPY(dest,src) do { (dest) = (src); } while (0)
2413#endif
2414#endif
2415
2416#if !defined(DUK_MACRO_STRINGIFY)
2417/* Macro hackery to convert e.g. __LINE__ to a string without formatting,
2418 * see: http://stackoverflow.com/questions/240353/convert-a-preprocessor-token-to-a-string
2419 */
2420#define DUK_MACRO_STRINGIFY_HELPER(x) #x
2421#define DUK_MACRO_STRINGIFY(x) DUK_MACRO_STRINGIFY_HELPER(x)
2422#endif
2423
2424#if !defined(DUK_CAUSE_SEGFAULT)
2425/* This can be used for testing; valgrind will then indicate the C call stack
2426 * leading to the call site.
2427 */
2428#define DUK_CAUSE_SEGFAULT() do { *((volatile duk_uint32_t *) NULL) = (duk_uint32_t) 0xdeadbeefUL; } while (0)
2429#endif
2430#if !defined(DUK_UNREF)
2431/* Macro for suppressing warnings for potentially unreferenced variables.
2432 * The variables can be actually unreferenced or unreferenced in some
2433 * specific cases only; for instance, if a variable is only debug printed,
2434 * it is unreferenced when debug printing is disabled.
2435 */
2436#define DUK_UNREF(x) do { (void) (x); } while (0)
2437#endif
2438#if !defined(DUK_NORETURN)
2439#define DUK_NORETURN(decl) decl
2440#endif
2441#if !defined(DUK_UNREACHABLE)
2442/* Don't know how to declare unreachable point, so don't do it; this
2443 * may cause some spurious compilation warnings (e.g. "variable used
2444 * uninitialized").
2445 */
2446#define DUK_UNREACHABLE() do { } while (0)
2447#endif
2448#if !defined(DUK_LOSE_CONST)
2449/* Convert any input pointer into a "void *", losing a const qualifier.
2450 * This is not fully portable because casting through duk_uintptr_t may
2451 * not work on all architectures (e.g. those with long, segmented pointers).
2452 */
2453#define DUK_LOSE_CONST(src) ((void *) (duk_uintptr_t) (src))
2454#endif
2455
2456#if !defined(DUK_LIKELY)
2457#define DUK_LIKELY(x) (x)
2458#endif
2459#if !defined(DUK_UNLIKELY)
2460#define DUK_UNLIKELY(x) (x)
2461#endif
2462#if !defined(DUK_UNPREDICTABLE)
2463#define DUK_UNPREDICTABLE(x) (x)
2464#endif
2465
2466#if !defined(DUK_NOINLINE)
2467#define DUK_NOINLINE /*nop*/
2468#endif
2469#if !defined(DUK_INLINE)
2470#define DUK_INLINE /*nop*/
2471#endif
2472#if !defined(DUK_ALWAYS_INLINE)
2473#define DUK_ALWAYS_INLINE /*nop*/
2474#endif
2475
2476#if !defined(DUK_EXTERNAL_DECL)
2477#define DUK_EXTERNAL_DECL extern
2478#endif
2479#if !defined(DUK_EXTERNAL)
2480#define DUK_EXTERNAL /*empty*/
2481#endif
2482#if !defined(DUK_INTERNAL_DECL)
2483#if defined(DUK_SINGLE_FILE)
2484#define DUK_INTERNAL_DECL static
2485#else
2486#define DUK_INTERNAL_DECL extern
2487#endif
2488#endif
2489#if !defined(DUK_INTERNAL)
2490#if defined(DUK_SINGLE_FILE)
2491#define DUK_INTERNAL static
2492#else
2493#define DUK_INTERNAL /*empty*/
2494#endif
2495#endif
2496#if !defined(DUK_LOCAL_DECL)
2497#define DUK_LOCAL_DECL static
2498#endif
2499#if !defined(DUK_LOCAL)
2500#define DUK_LOCAL static
2501#endif
2502
2503#if !defined(DUK_FILE_MACRO)
2504#define DUK_FILE_MACRO __FILE__
2505#endif
2506#if !defined(DUK_LINE_MACRO)
2507#define DUK_LINE_MACRO __LINE__
2508#endif
2509#if !defined(DUK_FUNC_MACRO)
2510#if defined(DUK_F_C99) || defined(DUK_F_CPP11)
2511#define DUK_FUNC_MACRO __func__
2512#elif defined(__FUNCTION__)
2513#define DUK_FUNC_MACRO __FUNCTION__
2514#else
2515#define DUK_FUNC_MACRO "unknown"
2516#endif
2517#endif
2518
2519#if !defined(DUK_BSWAP32)
2520#define DUK_BSWAP32(x) \
2521 ((((duk_uint32_t) (x)) >> 24) | \
2522 ((((duk_uint32_t) (x)) >> 8) & 0xff00UL) | \
2523 ((((duk_uint32_t) (x)) << 8) & 0xff0000UL) | \
2524 (((duk_uint32_t) (x)) << 24))
2525#endif
2526#if !defined(DUK_BSWAP16)
2527#define DUK_BSWAP16(x) \
2528 ((duk_uint16_t) (x) >> 8) | \
2529 ((duk_uint16_t) (x) << 8)
2530#endif
2531
2532/* DUK_USE_VARIADIC_MACROS: required from compilers, so no fill-in. */
2533/* DUK_USE_UNION_INITIALIZERS: required from compilers, so no fill-in. */
2534
2535#if !(defined(DUK_USE_FLEX_C99) || defined(DUK_USE_FLEX_ZEROSIZE) || defined(DUK_USE_FLEX_ONESIZE))
2536#if defined(DUK_F_C99)
2537#define DUK_USE_FLEX_C99
2538#else
2539#define DUK_USE_FLEX_ZEROSIZE /* Not standard but common enough */
2540#endif
2541#endif
2542
2543#if !(defined(DUK_USE_PACK_GCC_ATTR) || defined(DUK_USE_PACK_CLANG_ATTR) || \
2544 defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_DUMMY_MEMBER))
2545#define DUK_USE_PACK_DUMMY_MEMBER
2546#endif
2547
2548#if 0 /* not defined by default */
2549#undef DUK_USE_GCC_PRAGMAS
2550#endif
2551
2552/* Workaround for GH-323: avoid inlining control when compiling from
2553 * multiple sources, as it causes compiler portability trouble.
2554 */
2555#if !defined(DUK_SINGLE_FILE)
2556#undef DUK_NOINLINE
2557#undef DUK_INLINE
2558#undef DUK_ALWAYS_INLINE
2559#define DUK_NOINLINE /*nop*/
2560#define DUK_INLINE /*nop*/
2561#define DUK_ALWAYS_INLINE /*nop*/
2562#endif
2563
2564/*
2565 * Check whether or not a packed duk_tval representation is possible.
2566 * What's basically required is that pointers are 32-bit values
2567 * (sizeof(void *) == 4). Best effort check, not always accurate.
2568 * If guess goes wrong, crashes may result; self tests also verify
2569 * the guess.
2570 */
2571
2572/* Explicit marker needed; may be 'defined', 'undefined, 'or 'not provided'. */
2573#if !defined(DUK_F_PACKED_TVAL_PROVIDED)
2574#undef DUK_F_PACKED_TVAL_POSSIBLE
2575
2576/* Strict C99 case: DUK_UINTPTR_MAX (= UINTPTR_MAX) should be very reliable */
2577#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX)
2578#if (DUK_UINTPTR_MAX <= 0xffffffffUL)
2579#define DUK_F_PACKED_TVAL_POSSIBLE
2580#endif
2581#endif
2582
2583/* Non-C99 case, still relying on DUK_UINTPTR_MAX, as long as it is not a computed value */
2584#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_UINTPTR_MAX) && !defined(DUK_UINTPTR_MAX_COMPUTED)
2585#if (DUK_UINTPTR_MAX <= 0xffffffffUL)
2586#define DUK_F_PACKED_TVAL_POSSIBLE
2587#endif
2588#endif
2589
2590/* DUK_SIZE_MAX (= SIZE_MAX) is often reliable */
2591#if !defined(DUK_F_PACKED_TVAL_POSSIBLE) && defined(DUK_SIZE_MAX) && !defined(DUK_SIZE_MAX_COMPUTED)
2592#if (DUK_SIZE_MAX <= 0xffffffffUL)
2593#define DUK_F_PACKED_TVAL_POSSIBLE
2594#endif
2595#endif
2596
2597#undef DUK_USE_PACKED_TVAL
2598#if defined(DUK_F_PACKED_TVAL_POSSIBLE)
2599#define DUK_USE_PACKED_TVAL
2600#endif
2601
2602#undef DUK_F_PACKED_TVAL_POSSIBLE
2603#endif /* DUK_F_PACKED_TVAL_PROVIDED */
2604/* Object property allocation layout has implications for memory and code
2605 * footprint and generated code size/speed. The best layout also depends
2606 * on whether the platform has alignment requirements or benefits from
2607 * having mostly aligned accesses.
2608 */
2609#undef DUK_USE_HOBJECT_LAYOUT_1
2610#undef DUK_USE_HOBJECT_LAYOUT_2
2611#undef DUK_USE_HOBJECT_LAYOUT_3
2612#if (DUK_USE_ALIGN_BY == 1)
2613/* On platforms without any alignment issues, layout 1 is preferable
2614 * because it compiles to slightly less code and provides direct access
2615 * to property keys.
2616 */
2617#define DUK_USE_HOBJECT_LAYOUT_1
2618#else
2619/* On other platforms use layout 2, which requires some padding but
2620 * is a bit more natural than layout 3 in ordering the entries. Layout
2621 * 3 is currently not used.
2622 */
2623#define DUK_USE_HOBJECT_LAYOUT_2
2624#endif
2625
2626/* GCC/clang inaccurate math would break compliance and probably duk_tval,
2627 * so refuse to compile. Relax this if -ffast-math is tested to work.
2628 */
2629#if defined(__FAST_MATH__)
2630#error __FAST_MATH__ defined, refusing to compile
2631#endif
2632
2633/*
2634 * Autogenerated defaults
2635 */
2636
2637#define DUK_USE_ARRAY_BUILTIN
2638#define DUK_USE_ARRAY_FASTPATH
2639#define DUK_USE_ARRAY_PROP_FASTPATH
2640#undef DUK_USE_ASSERTIONS
2641#define DUK_USE_AUGMENT_ERROR_CREATE
2642#define DUK_USE_AUGMENT_ERROR_THROW
2643#define DUK_USE_AVOID_PLATFORM_FUNCPTRS
2644#define DUK_USE_BASE64_FASTPATH
2645#define DUK_USE_BOOLEAN_BUILTIN
2646#define DUK_USE_BUFFEROBJECT_SUPPORT
2647#undef DUK_USE_BUFLEN16
2648#define DUK_USE_BYTECODE_DUMP_SUPPORT
2649#define DUK_USE_COMMONJS_MODULES
2650#define DUK_USE_COMPILER_RECLIMIT 2500
2651#define DUK_USE_COROUTINE_SUPPORT
2652#undef DUK_USE_CPP_EXCEPTIONS
2653#undef DUK_USE_DATAPTR16
2654#undef DUK_USE_DATAPTR_DEC16
2655#undef DUK_USE_DATAPTR_ENC16
2656#define DUK_USE_DATE_BUILTIN
2657#undef DUK_USE_DATE_FORMAT_STRING
2658#undef DUK_USE_DATE_GET_LOCAL_TZOFFSET
2659#undef DUK_USE_DATE_GET_NOW
2660#undef DUK_USE_DATE_PARSE_STRING
2661#undef DUK_USE_DATE_PRS_GETDATE
2662#undef DUK_USE_DEBUG
2663#undef DUK_USE_DEBUGGER_DUMPHEAP
2664#undef DUK_USE_DEBUGGER_INSPECT
2665#undef DUK_USE_DEBUGGER_PAUSE_UNCAUGHT
2666#undef DUK_USE_DEBUGGER_SUPPORT
2667#define DUK_USE_DEBUGGER_THROW_NOTIFY
2668#undef DUK_USE_DEBUGGER_TRANSPORT_TORTURE
2669#define DUK_USE_DEBUG_BUFSIZE 65536L
2670#define DUK_USE_DEBUG_LEVEL 0
2671#undef DUK_USE_DEBUG_WRITE
2672#define DUK_USE_DOUBLE_LINKED_HEAP
2673#define DUK_USE_DUKTAPE_BUILTIN
2674#define DUK_USE_ENCODING_BUILTINS
2675#define DUK_USE_ERRCREATE
2676#define DUK_USE_ERRTHROW
2677#define DUK_USE_ES6
2678#define DUK_USE_ES6_OBJECT_PROTO_PROPERTY
2679#define DUK_USE_ES6_OBJECT_SETPROTOTYPEOF
2680#define DUK_USE_ES6_PROXY
2681#define DUK_USE_ES6_REGEXP_SYNTAX
2682#define DUK_USE_ES6_UNICODE_ESCAPE
2683#define DUK_USE_ES7_EXP_OPERATOR
2684#define DUK_USE_ESBC_LIMITS
2685#define DUK_USE_ESBC_MAX_BYTES 2147418112L
2686#define DUK_USE_ESBC_MAX_LINENUMBER 2147418112L
2687#undef DUK_USE_EXEC_FUN_LOCAL
2688#undef DUK_USE_EXEC_INDIRECT_BOUND_CHECK
2689#undef DUK_USE_EXEC_PREFER_SIZE
2690#define DUK_USE_EXEC_REGCONST_OPTIMIZE
2691#undef DUK_USE_EXEC_TIMEOUT_CHECK
2692#undef DUK_USE_EXPLICIT_NULL_INIT
2693#undef DUK_USE_EXTSTR_FREE
2694#undef DUK_USE_EXTSTR_INTERN_CHECK
2695#undef DUK_USE_FASTINT
2696#define DUK_USE_FAST_REFCOUNT_DEFAULT
2697#undef DUK_USE_FATAL_HANDLER
2698#define DUK_USE_FINALIZER_SUPPORT
2699#undef DUK_USE_FUNCPTR16
2700#undef DUK_USE_FUNCPTR_DEC16
2701#undef DUK_USE_FUNCPTR_ENC16
2702#define DUK_USE_FUNCTION_BUILTIN
2703#define DUK_USE_FUNC_FILENAME_PROPERTY
2704#define DUK_USE_FUNC_NAME_PROPERTY
2705#undef DUK_USE_GC_TORTURE
2706#undef DUK_USE_GET_RANDOM_DOUBLE
2707#define DUK_USE_GLOBAL_BUILTIN
2708#undef DUK_USE_HEAPPTR16
2709#undef DUK_USE_HEAPPTR_DEC16
2710#undef DUK_USE_HEAPPTR_ENC16
2711#define DUK_USE_HEX_FASTPATH
2712#define DUK_USE_HOBJECT_HASH_PART
2713#define DUK_USE_HSTRING_ARRIDX
2714#define DUK_USE_HSTRING_CLEN
2715#undef DUK_USE_HSTRING_EXTDATA
2716#define DUK_USE_IDCHAR_FASTPATH
2717#undef DUK_USE_INTERRUPT_COUNTER
2718#undef DUK_USE_INTERRUPT_DEBUG_FIXUP
2719#define DUK_USE_JC
2720#define DUK_USE_JSON_BUILTIN
2721#define DUK_USE_JSON_DECNUMBER_FASTPATH
2722#define DUK_USE_JSON_DECSTRING_FASTPATH
2723#define DUK_USE_JSON_DEC_RECLIMIT 1000
2724#define DUK_USE_JSON_EATWHITE_FASTPATH
2725#define DUK_USE_JSON_ENC_RECLIMIT 1000
2726#define DUK_USE_JSON_QUOTESTRING_FASTPATH
2727#undef DUK_USE_JSON_STRINGIFY_FASTPATH
2728#define DUK_USE_JSON_SUPPORT
2729#define DUK_USE_JX
2730#define DUK_USE_LEXER_SLIDING_WINDOW
2731#undef DUK_USE_LIGHTFUNC_BUILTINS
2732#undef DUK_USE_MARKANDSWEEP_FINALIZER_TORTURE
2733#define DUK_USE_MARK_AND_SWEEP_RECLIMIT 256
2734#define DUK_USE_MATH_BUILTIN
2735#define DUK_USE_MS_STRINGTABLE_RESIZE
2736#define DUK_USE_NATIVE_CALL_RECLIMIT 1000
2737#define DUK_USE_NONSTD_ARRAY_CONCAT_TRAILER
2738#define DUK_USE_NONSTD_ARRAY_MAP_TRAILER
2739#define DUK_USE_NONSTD_ARRAY_SPLICE_DELCOUNT
2740#undef DUK_USE_NONSTD_FUNC_CALLER_PROPERTY
2741#undef DUK_USE_NONSTD_FUNC_SOURCE_PROPERTY
2742#define DUK_USE_NONSTD_FUNC_STMT
2743#define DUK_USE_NONSTD_GETTER_KEY_ARGUMENT
2744#define DUK_USE_NONSTD_JSON_ESC_U2028_U2029
2745#define DUK_USE_NONSTD_SETTER_KEY_ARGUMENT
2746#define DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT
2747#define DUK_USE_NUMBER_BUILTIN
2748#define DUK_USE_OBJECT_BUILTIN
2749#undef DUK_USE_OBJSIZES16
2750#undef DUK_USE_PARANOID_ERRORS
2751#define DUK_USE_PC2LINE
2752#undef DUK_USE_PREFER_SIZE
2753#define DUK_USE_PROVIDE_DEFAULT_ALLOC_FUNCTIONS
2754#undef DUK_USE_REFCOUNT16
2755#define DUK_USE_REFERENCE_COUNTING
2756#define DUK_USE_REFLECT_BUILTIN
2757#undef DUK_USE_REFZERO_FINALIZER_TORTURE
2758#undef DUK_USE_REGEXP_CANON_WORKAROUND
2759#define DUK_USE_REGEXP_COMPILER_RECLIMIT 10000
2760#define DUK_USE_REGEXP_EXECUTOR_RECLIMIT 10000
2761#define DUK_USE_REGEXP_SUPPORT
2762#undef DUK_USE_ROM_GLOBAL_CLONE
2763#undef DUK_USE_ROM_GLOBAL_INHERIT
2764#undef DUK_USE_ROM_OBJECTS
2765#define DUK_USE_ROM_PTRCOMP_FIRST 63488L
2766#undef DUK_USE_ROM_STRINGS
2767#define DUK_USE_SECTION_B
2768#undef DUK_USE_SELF_TESTS
2769#undef DUK_USE_SHUFFLE_TORTURE
2770#define DUK_USE_SOURCE_NONBMP
2771#undef DUK_USE_STRHASH16
2772#undef DUK_USE_STRHASH_DENSE
2773#define DUK_USE_STRHASH_SKIP_SHIFT 5
2774#define DUK_USE_STRICT_DECL
2775#undef DUK_USE_STRICT_UTF8_SOURCE
2776#define DUK_USE_STRING_BUILTIN
2777#undef DUK_USE_STRLEN16
2778#undef DUK_USE_STRTAB_CHAIN
2779#undef DUK_USE_STRTAB_CHAIN_SIZE
2780#define DUK_USE_STRTAB_PROBE
2781#undef DUK_USE_SYMBOL_BUILTIN
2782#define DUK_USE_TAILCALL
2783#define DUK_USE_TARGET_INFO "unknown"
2784#define DUK_USE_TRACEBACKS
2785#define DUK_USE_TRACEBACK_DEPTH 10
2786#define DUK_USE_USER_DECLARE() /* no user declarations */
2787#undef DUK_USE_VALSTACK_UNSAFE
2788#define DUK_USE_VERBOSE_ERRORS
2789#define DUK_USE_VERBOSE_EXECUTOR_ERRORS
2790#define DUK_USE_VOLUNTARY_GC
2791#define DUK_USE_ZERO_BUFFER_DATA
2792
2793/*
2794 * You may add overriding #define/#undef directives below for
2795 * customization. You of course cannot un-#include or un-typedef
2796 * anything; these require direct changes above.
2797 */
2798
2799/* __OVERRIDE_DEFINES__ */
2800
2801/*
2802 * Date provider selection
2803 *
2804 * User may define DUK_USE_DATE_GET_NOW() etc directly, in which case we'll
2805 * rely on an external provider. If this is not done, revert to previous
2806 * behavior and use Unix/Windows built-in provider.
2807 */
2808
2809#if defined(DUK_COMPILING_DUKTAPE)
2810
2811#if defined(DUK_USE_DATE_GET_NOW)
2812/* External provider already defined. */
2813#elif defined(DUK_USE_DATE_NOW_GETTIMEOFDAY)
2814#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_gettimeofday((ctx))
2815#elif defined(DUK_USE_DATE_NOW_TIME)
2816#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_time((ctx))
2817#elif defined(DUK_USE_DATE_NOW_WINDOWS)
2818#define DUK_USE_DATE_GET_NOW(ctx) duk_bi_date_get_now_windows((ctx))
2819#else
2820#error no provider for DUK_USE_DATE_GET_NOW()
2821#endif
2822
2823#if defined(DUK_USE_DATE_GET_LOCAL_TZOFFSET)
2824/* External provider already defined. */
2825#elif defined(DUK_USE_DATE_TZO_GMTIME_R) || defined(DUK_USE_DATE_TZO_GMTIME)
2826#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_gmtime((d))
2827#elif defined(DUK_USE_DATE_TZO_WINDOWS)
2828#define DUK_USE_DATE_GET_LOCAL_TZOFFSET(d) duk_bi_date_get_local_tzoffset_windows((d))
2829#else
2830#error no provider for DUK_USE_DATE_GET_LOCAL_TZOFFSET()
2831#endif
2832
2833#if defined(DUK_USE_DATE_PARSE_STRING)
2834/* External provider already defined. */
2835#elif defined(DUK_USE_DATE_PRS_STRPTIME)
2836#define DUK_USE_DATE_PARSE_STRING(ctx,str) duk_bi_date_parse_string_strptime((ctx), (str))
2837#elif defined(DUK_USE_DATE_PRS_GETDATE)
2838#define DUK_USE_DATE_PARSE_STRING(ctx,str) duk_bi_date_parse_string_getdate((ctx), (str))
2839#else
2840/* No provider for DUK_USE_DATE_PARSE_STRING(), fall back to ISO 8601 only. */
2841#endif
2842
2843#if defined(DUK_USE_DATE_FORMAT_STRING)
2844/* External provider already defined. */
2845#elif defined(DUK_USE_DATE_FMT_STRFTIME)
2846#define DUK_USE_DATE_FORMAT_STRING(ctx,parts,tzoffset,flags) \
2847 duk_bi_date_format_parts_strftime((ctx), (parts), (tzoffset), (flags))
2848#else
2849/* No provider for DUK_USE_DATE_FORMAT_STRING(), fall back to ISO 8601 only. */
2850#endif
2851
2852#endif /* DUK_COMPILING_DUKTAPE */
2853
2854/*
2855 * Convert DUK_USE_BYTEORDER, from whatever source, into currently used
2856 * internal defines. If detection failed, #error out.
2857 */
2858
2859#if defined(DUK_USE_BYTEORDER)
2860#if (DUK_USE_BYTEORDER == 1)
2861#define DUK_USE_INTEGER_LE
2862#define DUK_USE_DOUBLE_LE
2863#elif (DUK_USE_BYTEORDER == 2)
2864#define DUK_USE_INTEGER_LE /* integer endianness is little on purpose */
2865#define DUK_USE_DOUBLE_ME
2866#elif (DUK_USE_BYTEORDER == 3)
2867#define DUK_USE_INTEGER_BE
2868#define DUK_USE_DOUBLE_BE
2869#else
2870#error unsupported: byte order invalid
2871#endif /* byte order */
2872#else
2873#error unsupported: byte order detection failed
2874#endif /* defined(DUK_USE_BYTEORDER) */
2875
2876#endif /* DUK_CONFIG_H_INCLUDED */