Annotation of embedaddon/pcre/sljit/sljitConfigInternal.h, revision 1.1.1.2
1.1 misho 1: /*
2: * Stack-less Just-In-Time compiler
3: *
1.1.1.2 ! misho 4: * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
1.1 misho 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: /*
1.1.1.2 ! misho 31: SLJIT defines the following macros depending on the target architecture:
! 32:
! 33: Feature detection (boolean) macros:
1.1 misho 34: SLJIT_32BIT_ARCHITECTURE : 32 bit architecture
35: SLJIT_64BIT_ARCHITECTURE : 64 bit architecture
36: SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_w/sljit_uw array by index
37: SLJIT_FLOAT_SHIFT : the shift required to apply when accessing a double array by index
38: SLJIT_LITTLE_ENDIAN : little endian architecture
1.1.1.2 ! misho 39: SLJIT_BIG_ENDIAN : big endian architecture
! 40: SLJIT_UNALIGNED : allows unaligned memory accesses for non-fpu operations (only!)
! 41: SLJIT_INDIRECT_CALL : see SLJIT_FUNC_OFFSET() for more information
! 42:
! 43: Types and useful macros:
! 44: sljit_b, sljit_ub : signed and unsigned 8 bit byte
! 45: sljit_h, sljit_uh : signed and unsigned 16 bit half-word (short) type
! 46: sljit_i, sljit_ui : signed and unsigned 32 bit integer type
! 47: sljit_w, sljit_uw : signed and unsigned machine word, enough to store a pointer (same as intptr_t)
! 48: SLJIT_CALL : C calling convention define for both calling JIT form C and C callbacks for JIT
! 49: SLJIT_W(number) : defining 64 bit constants on 64 bit architectures (compiler independent helper)
1.1 misho 50: */
51:
52: #if !((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
53: || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
54: || (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
55: || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
56: || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
57: || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
58: || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
59: || (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
60: || (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
61: || (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED))
62: #error "An architecture must be selected"
63: #endif
64:
65: /* Sanity check. */
66: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
67: + (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
68: + (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
69: + (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
70: + (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
71: + (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
72: + (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
73: + (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
74: + (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
75: + (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) >= 2
76: #error "Multiple architectures are selected"
77: #endif
78:
79: /* Auto select option (requires compiler support) */
80: #if (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO)
81:
82: #ifndef _WIN32
83:
84: #if defined(__i386__) || defined(__i386)
85: #define SLJIT_CONFIG_X86_32 1
86: #elif defined(__x86_64__)
87: #define SLJIT_CONFIG_X86_64 1
88: #elif defined(__arm__) || defined(__ARM__)
89: #ifdef __thumb2__
90: #define SLJIT_CONFIG_ARM_THUMB2 1
91: #elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
92: #define SLJIT_CONFIG_ARM_V7 1
93: #else
94: #define SLJIT_CONFIG_ARM_V5 1
95: #endif
96: #elif defined(__ppc64__) || defined(__powerpc64__)
97: #define SLJIT_CONFIG_PPC_64 1
98: #elif defined(__ppc__) || defined(__powerpc__)
99: #define SLJIT_CONFIG_PPC_32 1
100: #elif defined(__mips__)
101: #define SLJIT_CONFIG_MIPS_32 1
102: #else
103: /* Unsupported architecture */
104: #define SLJIT_CONFIG_UNSUPPORTED 1
105: #endif
106:
107: #else /* !_WIN32 */
108:
109: #if defined(_M_X64) || defined(__x86_64__)
110: #define SLJIT_CONFIG_X86_64 1
111: #elif defined(_ARM_)
112: #define SLJIT_CONFIG_ARM_V5 1
113: #else
114: #define SLJIT_CONFIG_X86_32 1
115: #endif
116:
117: #endif /* !WIN32 */
118: #endif /* SLJIT_CONFIG_AUTO */
119:
120: #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
121: #undef SLJIT_EXECUTABLE_ALLOCATOR
122: #endif
123:
124: #if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
125:
126: /* These libraries are needed for the macros below. */
127: #include <stdlib.h>
128: #include <string.h>
129:
130: #endif /* STD_MACROS_DEFINED */
131:
132: /* General macros:
133: Note: SLJIT is designed to be independent from them as possible.
134:
135: In release mode (SLJIT_DEBUG is not defined) only the following macros are needed:
136: */
137:
138: #ifndef SLJIT_MALLOC
139: #define SLJIT_MALLOC(size) malloc(size)
140: #endif
141:
142: #ifndef SLJIT_FREE
143: #define SLJIT_FREE(ptr) free(ptr)
144: #endif
145:
146: #ifndef SLJIT_MEMMOVE
147: #define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
148: #endif
149:
150: #ifndef SLJIT_ZEROMEM
151: #define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len)
152: #endif
153:
154: #if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY)
155:
156: #if defined(__GNUC__) && (__GNUC__ >= 3)
157: #define SLJIT_LIKELY(x) __builtin_expect((x), 1)
158: #define SLJIT_UNLIKELY(x) __builtin_expect((x), 0)
159: #else
160: #define SLJIT_LIKELY(x) (x)
161: #define SLJIT_UNLIKELY(x) (x)
162: #endif
163:
164: #endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */
165:
166: #ifndef SLJIT_INLINE
167: /* Inline functions. */
168: #define SLJIT_INLINE __inline
169: #endif
170:
171: #ifndef SLJIT_CONST
172: /* Const variables. */
173: #define SLJIT_CONST const
174: #endif
175:
176: #ifndef SLJIT_UNUSED_ARG
177: /* Unused arguments. */
178: #define SLJIT_UNUSED_ARG(arg) (void)arg
179: #endif
180:
181: #if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC)
182: /* Static ABI functions. For all-in-one programs. */
183:
184: #if defined(__GNUC__)
185: /* Disable unused warnings in gcc. */
186: #define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused))
187: #else
188: #define SLJIT_API_FUNC_ATTRIBUTE static
189: #endif
190:
191: #else
192: #define SLJIT_API_FUNC_ATTRIBUTE
193: #endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */
194:
195: #ifndef SLJIT_CACHE_FLUSH
196:
197: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
198:
199: /* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
200: #define SLJIT_CACHE_FLUSH(from, to) \
201: ppc_cache_flush((from), (to))
202:
203: #elif (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
204:
205: /* Not required to implement on archs with unified caches. */
206: #define SLJIT_CACHE_FLUSH(from, to)
207:
208: #else
209:
210: /* Calls __ARM_NR_cacheflush on ARM-Linux. */
211: #define SLJIT_CACHE_FLUSH(from, to) \
212: __clear_cache((char*)(from), (char*)(to))
213:
214: #endif
215:
216: #endif /* !SLJIT_CACHE_FLUSH */
217:
218: /* 8 bit byte type. */
219: typedef unsigned char sljit_ub;
220: typedef signed char sljit_b;
221:
222: /* 16 bit half-word type. */
223: typedef unsigned short int sljit_uh;
224: typedef signed short int sljit_h;
225:
226: /* 32 bit integer type. */
227: typedef unsigned int sljit_ui;
228: typedef signed int sljit_i;
229:
230: /* Machine word type. Can encapsulate a pointer.
231: 32 bit for 32 bit machines.
232: 64 bit for 64 bit machines. */
1.1.1.2 ! misho 233: #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
! 234: /* Just to have something. */
! 235: #define SLJIT_WORD_SHIFT 0
! 236: typedef unsigned long int sljit_uw;
! 237: typedef long int sljit_w;
! 238: #elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1.1 misho 239: #define SLJIT_32BIT_ARCHITECTURE 1
240: #define SLJIT_WORD_SHIFT 2
241: typedef unsigned int sljit_uw;
242: typedef int sljit_w;
243: #else
244: #define SLJIT_64BIT_ARCHITECTURE 1
245: #define SLJIT_WORD_SHIFT 3
246: #ifdef _WIN32
247: typedef unsigned __int64 sljit_uw;
248: typedef __int64 sljit_w;
249: #else
250: typedef unsigned long int sljit_uw;
251: typedef long int sljit_w;
252: #endif
253: #endif
254:
255: /* Double precision. */
256: #define SLJIT_FLOAT_SHIFT 3
257:
258: #ifndef SLJIT_W
259:
260: /* Defining long constants. */
261: #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
262: #define SLJIT_W(w) (w##ll)
263: #else
264: #define SLJIT_W(w) (w)
265: #endif
266:
267: #endif /* !SLJIT_W */
268:
269: #ifndef SLJIT_CALL
270:
271: /* ABI (Application Binary Interface) types. */
272: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
273:
274: #if defined(__GNUC__)
275:
276: #define SLJIT_CALL __attribute__ ((fastcall))
277: #define SLJIT_X86_32_FASTCALL 1
278:
279: #elif defined(_WIN32)
280:
281: #ifdef __BORLANDC__
282: #define SLJIT_CALL __msfastcall
283: #else /* __BORLANDC__ */
284: #define SLJIT_CALL __fastcall
285: #endif /* __BORLANDC__ */
286: #define SLJIT_X86_32_FASTCALL 1
287:
288: #else /* defined(_WIN32) */
289: #define SLJIT_CALL __stdcall
290: #endif
291:
292: #else /* Other architectures. */
293:
294: #define SLJIT_CALL
295:
296: #endif /* SLJIT_CONFIG_X86_32 */
297:
298: #endif /* !SLJIT_CALL */
299:
300: #if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN)
301:
302: /* These macros are useful for the application. */
303: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
304: #define SLJIT_BIG_ENDIAN 1
305:
306: #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
307:
308: #ifdef __MIPSEL__
309: #define SLJIT_LITTLE_ENDIAN 1
310: #else
311: #define SLJIT_BIG_ENDIAN 1
312: #endif
313:
314: #else
315: #define SLJIT_LITTLE_ENDIAN 1
316: #endif
317:
318: #endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */
319:
320: /* Sanity check. */
321: #if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
322: #error "Exactly one endianness must be selected"
323: #endif
324:
325: #if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
326: #error "Exactly one endianness must be selected"
327: #endif
328:
329: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
330: /* It seems ppc64 compilers use an indirect addressing for functions.
331: It makes things really complicated. */
332: #define SLJIT_INDIRECT_CALL 1
333: #endif
334:
335: #ifndef SLJIT_SSE2
336:
337: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
338: /* Turn on SSE2 support on x86 (operating on doubles).
339: (Better performance than legacy fpu instructions). */
340: #define SLJIT_SSE2 1
341:
342: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
343: /* Auto detect SSE2 support using CPUID.
344: On 64 bit x86 cpus, sse2 must be present. */
345: #define SLJIT_SSE2_AUTO 1
346: #endif
347:
348: #endif /* (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) */
349:
350: #endif /* !SLJIT_SSE2 */
351:
352: #ifndef SLJIT_UNALIGNED
353:
354: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
355: || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
356: || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
357: || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
358: || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
359: || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
360: #define SLJIT_UNALIGNED 1
361: #endif
362:
363: #endif /* !SLJIT_UNALIGNED */
364:
365: #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
366: SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size);
367: SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr);
368: #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
369: #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
370: #endif
371:
372: #if (defined SLJIT_DEBUG && SLJIT_DEBUG) || (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
373: #include <stdio.h>
374: #endif
375:
376: #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
377:
378: /* Feel free to redefine these two macros. */
379: #ifndef SLJIT_ASSERT
380:
381: #define SLJIT_HALT_PROCESS() \
382: *((int*)0) = 0
383:
384: #define SLJIT_ASSERT(x) \
385: do { \
386: if (SLJIT_UNLIKELY(!(x))) { \
387: printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
388: SLJIT_HALT_PROCESS(); \
389: } \
390: } while (0)
391:
392: #endif /* !SLJIT_ASSERT */
393:
394: #ifndef SLJIT_ASSERT_STOP
395:
396: #define SLJIT_ASSERT_STOP() \
397: do { \
398: printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
399: SLJIT_HALT_PROCESS(); \
400: } while (0)
401:
402: #endif /* !SLJIT_ASSERT_STOP */
403:
404: #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
405:
406: #undef SLJIT_ASSERT
407: #undef SLJIT_ASSERT_STOP
408:
409: #define SLJIT_ASSERT(x) \
410: do { } while (0)
411: #define SLJIT_ASSERT_STOP() \
412: do { } while (0)
413:
414: #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
415:
416: #ifndef SLJIT_COMPILE_ASSERT
417:
418: /* Should be improved eventually. */
419: #define SLJIT_COMPILE_ASSERT(x, description) \
420: SLJIT_ASSERT(x)
421:
422: #endif /* !SLJIT_COMPILE_ASSERT */
423:
424: #endif
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