Annotation of embedaddon/pcre/sljit/sljitConfigInternal.h, revision 1.1.1.1
1.1 misho 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: SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size);
358: SLJIT_API_FUNC_ATTRIBUTE 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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