/[pcre]/code/trunk/sljit/sljitConfigInternal.h
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Contents of /code/trunk/sljit/sljitConfigInternal.h

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Revision 752 - (hide annotations) (download)
Sat Nov 19 15:28:29 2011 UTC (2 years, 4 months ago) by zherczeg
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JIT should use pcre_malloc/pcre_free for allocation.
1 ph10 662 /*
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 zherczeg 752 /* These libraries are needed for the macros below. */
123 ph10 662 #include <stdlib.h>
124     #include <string.h>
125    
126 zherczeg 752 #endif /* STD_MACROS_DEFINED */
127    
128     /* General macros:
129 ph10 662 Note: SLJIT is designed to be independent from them as possible.
130    
131 zherczeg 752 In release mode (SLJIT_DEBUG is not defined) only the following macros are needed:
132     */
133 ph10 662
134 zherczeg 752 #ifndef SLJIT_MALLOC
135 ph10 662 #define SLJIT_MALLOC(size) malloc(size)
136 zherczeg 752 #endif
137    
138     #ifndef SLJIT_FREE
139 ph10 662 #define SLJIT_FREE(ptr) free(ptr)
140 zherczeg 752 #endif
141    
142     #ifndef SLJIT_MEMMOVE
143 ph10 662 #define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
144 zherczeg 752 #endif
145 ph10 662
146 zherczeg 752 #ifndef SLJIT_ZEROMEM
147     #define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len)
148     #endif
149 ph10 662
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 zherczeg 740 #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 ph10 662 #ifndef SLJIT_CACHE_FLUSH
192    
193 zherczeg 742 #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 ph10 662 #define SLJIT_CACHE_FLUSH(from, to) \
197 zherczeg 742 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 ph10 662 __clear_cache((char*)(from), (char*)(to))
209 zherczeg 742
210 ph10 662 #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 zherczeg 704 #if defined(__GNUC__)
266    
267 ph10 662 #define SLJIT_CALL __attribute__ ((fastcall))
268     #define SLJIT_X86_32_FASTCALL 1
269 zherczeg 704
270 ph10 662 #elif defined(_WIN32)
271 zherczeg 704
272     #ifdef __BORLANDC__
273     #define SLJIT_CALL __msfastcall
274     #else /* __BORLANDC__ */
275 ph10 662 #define SLJIT_CALL __fastcall
276 zherczeg 704 #endif /* __BORLANDC__ */
277 ph10 662 #define SLJIT_X86_32_FASTCALL 1
278 zherczeg 704
279     #else /* defined(_WIN32) */
280 ph10 662 #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 zherczeg 703 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
295 ph10 662 #define SLJIT_BIG_ENDIAN 1
296 zherczeg 703
297     #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
298    
299     #ifdef __MIPSEL__
300     #define SLJIT_LITTLE_ENDIAN 1
301 ph10 662 #else
302 zherczeg 703 #define SLJIT_BIG_ENDIAN 1
303     #endif
304    
305     #else
306 ph10 662 #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     void* sljit_malloc_exec(sljit_uw size);
358     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 zherczeg 740 #define SLJIT_HALT_PROCESS() \
373     *((int*)0) = 0
374    
375 ph10 662 #define SLJIT_ASSERT(x) \
376     do { \
377     if (SLJIT_UNLIKELY(!(x))) { \
378     printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
379 zherczeg 740 SLJIT_HALT_PROCESS(); \
380 ph10 662 } \
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 zherczeg 740 SLJIT_HALT_PROCESS(); \
391 ph10 662 } 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 zherczeg 740 #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 ph10 662 #endif

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