/[pcre]/code/branches/pcre16/sljit/sljitConfigInternal.h
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Contents of /code/branches/pcre16/sljit/sljitConfigInternal.h

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Revision 767 - (show annotations) (download)
Sat Nov 26 12:48:56 2011 UTC (2 years, 4 months ago) by zherczeg
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Make simple patterns work in PCRE16
1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright 2009-2010 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without modification, are
7 * permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this list of
10 * conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
13 * of conditions and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #ifndef _SLJIT_CONFIG_INTERNAL_H_
28 #define _SLJIT_CONFIG_INTERNAL_H_
29
30 /*
31 SLJIT defines the following variables itself depending on the configuration:
32 sljit_b, sljit_ub : signed and unsigned 8 bit byte
33 sljit_h, sljit_uh : signed and unsigned 16 bit half-word (short) type
34 sljit_i, sljit_ui : signed and unsigned 32 bit integer type
35 sljit_w, sljit_uw : signed and unsigned machine word, enough to store a pointer (same as intptr_t)
36 SLJIT_CALL : C calling convention for both calling JIT and C callbacks from JIT
37 SLJIT_32BIT_ARCHITECTURE : 32 bit architecture
38 SLJIT_64BIT_ARCHITECTURE : 64 bit architecture
39 SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_w/sljit_uw array by index
40 SLJIT_FLOAT_SHIFT : the shift required to apply when accessing a double array by index
41 SLJIT_BIG_ENDIAN : big endian architecture
42 SLJIT_LITTLE_ENDIAN : little endian architecture
43 SLJIT_INDIRECT_CALL : see SLJIT_FUNC_OFFSET()
44 SLJIT_W : for defining 64 bit constants on 64 bit architectures (compiler workaround)
45 SLJIT_UNALIGNED : allows unaligned memory accesses for integer arithmetic (only!)
46 */
47
48 #if !((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
49 || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
50 || (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
51 || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
52 || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
53 || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
54 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
55 || (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
56 || (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
57 || (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED))
58 #error "An architecture must be selected"
59 #endif
60
61 /* Sanity check. */
62 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
63 + (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
64 + (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
65 + (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
66 + (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
67 + (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
68 + (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
69 + (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
70 + (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
71 + (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) >= 2
72 #error "Multiple architectures are selected"
73 #endif
74
75 /* Auto select option (requires compiler support) */
76 #if (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO)
77
78 #ifndef _WIN32
79
80 #if defined(__i386__) || defined(__i386)
81 #define SLJIT_CONFIG_X86_32 1
82 #elif defined(__x86_64__)
83 #define SLJIT_CONFIG_X86_64 1
84 #elif defined(__arm__) || defined(__ARM__)
85 #ifdef __thumb2__
86 #define SLJIT_CONFIG_ARM_THUMB2 1
87 #elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
88 #define SLJIT_CONFIG_ARM_V7 1
89 #else
90 #define SLJIT_CONFIG_ARM_V5 1
91 #endif
92 #elif defined(__ppc64__) || defined(__powerpc64__)
93 #define SLJIT_CONFIG_PPC_64 1
94 #elif defined(__ppc__) || defined(__powerpc__)
95 #define SLJIT_CONFIG_PPC_32 1
96 #elif defined(__mips__)
97 #define SLJIT_CONFIG_MIPS_32 1
98 #else
99 /* Unsupported architecture */
100 #define SLJIT_CONFIG_UNSUPPORTED 1
101 #endif
102
103 #else /* !_WIN32 */
104
105 #if defined(_M_X64) || defined(__x86_64__)
106 #define SLJIT_CONFIG_X86_64 1
107 #elif defined(_ARM_)
108 #define SLJIT_CONFIG_ARM_V5 1
109 #else
110 #define SLJIT_CONFIG_X86_32 1
111 #endif
112
113 #endif /* !WIN32 */
114 #endif /* SLJIT_CONFIG_AUTO */
115
116 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
117 #undef SLJIT_EXECUTABLE_ALLOCATOR
118 #endif
119
120 #if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
121
122 /* These libraries are needed for the macros below. */
123 #include <stdlib.h>
124 #include <string.h>
125
126 #endif /* STD_MACROS_DEFINED */
127
128 /* General macros:
129 Note: SLJIT is designed to be independent from them as possible.
130
131 In release mode (SLJIT_DEBUG is not defined) only the following macros are needed:
132 */
133
134 #ifndef SLJIT_MALLOC
135 #define SLJIT_MALLOC(size) malloc(size)
136 #endif
137
138 #ifndef SLJIT_FREE
139 #define SLJIT_FREE(ptr) free(ptr)
140 #endif
141
142 #ifndef SLJIT_MEMMOVE
143 #define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
144 #endif
145
146 #ifndef SLJIT_ZEROMEM
147 #define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len)
148 #endif
149
150 #if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY)
151
152 #if defined(__GNUC__) && (__GNUC__ >= 3)
153 #define SLJIT_LIKELY(x) __builtin_expect((x), 1)
154 #define SLJIT_UNLIKELY(x) __builtin_expect((x), 0)
155 #else
156 #define SLJIT_LIKELY(x) (x)
157 #define SLJIT_UNLIKELY(x) (x)
158 #endif
159
160 #endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */
161
162 #ifndef SLJIT_INLINE
163 /* Inline functions. */
164 #define SLJIT_INLINE __inline
165 #endif
166
167 #ifndef SLJIT_CONST
168 /* Const variables. */
169 #define SLJIT_CONST const
170 #endif
171
172 #ifndef SLJIT_UNUSED_ARG
173 /* Unused arguments. */
174 #define SLJIT_UNUSED_ARG(arg) (void)arg
175 #endif
176
177 #if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC)
178 /* Static ABI functions. For all-in-one programs. */
179
180 #if defined(__GNUC__)
181 /* Disable unused warnings in gcc. */
182 #define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused))
183 #else
184 #define SLJIT_API_FUNC_ATTRIBUTE static
185 #endif
186
187 #else
188 #define SLJIT_API_FUNC_ATTRIBUTE
189 #endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */
190
191 #ifndef SLJIT_CACHE_FLUSH
192
193 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
194
195 /* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
196 #define SLJIT_CACHE_FLUSH(from, to) \
197 ppc_cache_flush((from), (to))
198
199 #elif (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
200
201 /* Not required to implement on archs with unified caches. */
202 #define SLJIT_CACHE_FLUSH(from, to)
203
204 #else
205
206 /* Calls __ARM_NR_cacheflush on ARM-Linux. */
207 #define SLJIT_CACHE_FLUSH(from, to) \
208 __clear_cache((char*)(from), (char*)(to))
209
210 #endif
211
212 #endif /* !SLJIT_CACHE_FLUSH */
213
214 /* 8 bit byte type. */
215 typedef unsigned char sljit_ub;
216 typedef signed char sljit_b;
217
218 /* 16 bit half-word type. */
219 typedef unsigned short int sljit_uh;
220 typedef signed short int sljit_h;
221
222 /* 32 bit integer type. */
223 typedef unsigned int sljit_ui;
224 typedef signed int sljit_i;
225
226 /* Machine word type. Can encapsulate a pointer.
227 32 bit for 32 bit machines.
228 64 bit for 64 bit machines. */
229 #if !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
230 #define SLJIT_32BIT_ARCHITECTURE 1
231 #define SLJIT_WORD_SHIFT 2
232 typedef unsigned int sljit_uw;
233 typedef int sljit_w;
234 #else
235 #define SLJIT_64BIT_ARCHITECTURE 1
236 #define SLJIT_WORD_SHIFT 3
237 #ifdef _WIN32
238 typedef unsigned __int64 sljit_uw;
239 typedef __int64 sljit_w;
240 #else
241 typedef unsigned long int sljit_uw;
242 typedef long int sljit_w;
243 #endif
244 #endif
245
246 /* Double precision. */
247 #define SLJIT_FLOAT_SHIFT 3
248
249 #ifndef SLJIT_W
250
251 /* Defining long constants. */
252 #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
253 #define SLJIT_W(w) (w##ll)
254 #else
255 #define SLJIT_W(w) (w)
256 #endif
257
258 #endif /* !SLJIT_W */
259
260 #ifndef SLJIT_CALL
261
262 /* ABI (Application Binary Interface) types. */
263 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
264
265 #if defined(__GNUC__)
266
267 #define SLJIT_CALL __attribute__ ((fastcall))
268 #define SLJIT_X86_32_FASTCALL 1
269
270 #elif defined(_WIN32)
271
272 #ifdef __BORLANDC__
273 #define SLJIT_CALL __msfastcall
274 #else /* __BORLANDC__ */
275 #define SLJIT_CALL __fastcall
276 #endif /* __BORLANDC__ */
277 #define SLJIT_X86_32_FASTCALL 1
278
279 #else /* defined(_WIN32) */
280 #define SLJIT_CALL __stdcall
281 #endif
282
283 #else /* Other architectures. */
284
285 #define SLJIT_CALL
286
287 #endif /* SLJIT_CONFIG_X86_32 */
288
289 #endif /* !SLJIT_CALL */
290
291 #if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN)
292
293 /* These macros are useful for the application. */
294 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
295 #define SLJIT_BIG_ENDIAN 1
296
297 #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
298
299 #ifdef __MIPSEL__
300 #define SLJIT_LITTLE_ENDIAN 1
301 #else
302 #define SLJIT_BIG_ENDIAN 1
303 #endif
304
305 #else
306 #define SLJIT_LITTLE_ENDIAN 1
307 #endif
308
309 #endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */
310
311 /* Sanity check. */
312 #if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
313 #error "Exactly one endianness must be selected"
314 #endif
315
316 #if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
317 #error "Exactly one endianness must be selected"
318 #endif
319
320 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
321 /* It seems ppc64 compilers use an indirect addressing for functions.
322 It makes things really complicated. */
323 #define SLJIT_INDIRECT_CALL 1
324 #endif
325
326 #ifndef SLJIT_SSE2
327
328 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
329 /* Turn on SSE2 support on x86 (operating on doubles).
330 (Better performance than legacy fpu instructions). */
331 #define SLJIT_SSE2 1
332
333 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
334 /* Auto detect SSE2 support using CPUID.
335 On 64 bit x86 cpus, sse2 must be present. */
336 #define SLJIT_SSE2_AUTO 1
337 #endif
338
339 #endif /* (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) */
340
341 #endif /* !SLJIT_SSE2 */
342
343 #ifndef SLJIT_UNALIGNED
344
345 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
346 || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
347 || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
348 || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
349 || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
350 || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
351 #define SLJIT_UNALIGNED 1
352 #endif
353
354 #endif /* !SLJIT_UNALIGNED */
355
356 #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
357 static void* sljit_malloc_exec(sljit_uw size);
358 static void sljit_free_exec(void* ptr);
359 #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
360 #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
361 #endif
362
363 #if (defined SLJIT_DEBUG && SLJIT_DEBUG) || (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
364 #include <stdio.h>
365 #endif
366
367 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
368
369 /* Feel free to redefine these two macros. */
370 #ifndef SLJIT_ASSERT
371
372 #define SLJIT_HALT_PROCESS() \
373 *((int*)0) = 0
374
375 #define SLJIT_ASSERT(x) \
376 do { \
377 if (SLJIT_UNLIKELY(!(x))) { \
378 printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
379 SLJIT_HALT_PROCESS(); \
380 } \
381 } while (0)
382
383 #endif /* !SLJIT_ASSERT */
384
385 #ifndef SLJIT_ASSERT_STOP
386
387 #define SLJIT_ASSERT_STOP() \
388 do { \
389 printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
390 SLJIT_HALT_PROCESS(); \
391 } while (0)
392
393 #endif /* !SLJIT_ASSERT_STOP */
394
395 #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
396
397 #undef SLJIT_ASSERT
398 #undef SLJIT_ASSERT_STOP
399
400 #define SLJIT_ASSERT(x) \
401 do { } while (0)
402 #define SLJIT_ASSERT_STOP() \
403 do { } while (0)
404
405 #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
406
407 #ifndef SLJIT_COMPILE_ASSERT
408
409 /* Should be improved eventually. */
410 #define SLJIT_COMPILE_ASSERT(x, description) \
411 SLJIT_ASSERT(x)
412
413 #endif /* !SLJIT_COMPILE_ASSERT */
414
415 #endif

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