1: /*
2: * Stack-less Just-In-Time compiler
3: *
4: * Copyright 2009-2012 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 macros depending on the target architecture:
32:
33: Feature detection (boolean) macros:
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
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)
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_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
198:
199: /* Not required to implement on archs with unified caches. */
200: #define SLJIT_CACHE_FLUSH(from, to)
201:
202: #elif defined __APPLE__
203:
204: /* Supported by all macs since Mac OS 10.5.
205: However, it does not work on non-jailbroken iOS devices,
206: although the compilation is successful. */
207:
208: #define SLJIT_CACHE_FLUSH(from, to) \
209: sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from))
210:
211: #elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
212:
213: /* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
214: #define SLJIT_CACHE_FLUSH(from, to) \
215: ppc_cache_flush((from), (to))
216:
217: #else
218:
219: /* Calls __ARM_NR_cacheflush on ARM-Linux. */
220: #define SLJIT_CACHE_FLUSH(from, to) \
221: __clear_cache((char*)(from), (char*)(to))
222:
223: #endif
224:
225: #endif /* !SLJIT_CACHE_FLUSH */
226:
227: /* 8 bit byte type. */
228: typedef unsigned char sljit_ub;
229: typedef signed char sljit_b;
230:
231: /* 16 bit half-word type. */
232: typedef unsigned short int sljit_uh;
233: typedef signed short int sljit_h;
234:
235: /* 32 bit integer type. */
236: typedef unsigned int sljit_ui;
237: typedef signed int sljit_i;
238:
239: /* Machine word type. Can encapsulate a pointer.
240: 32 bit for 32 bit machines.
241: 64 bit for 64 bit machines. */
242: #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
243: /* Just to have something. */
244: #define SLJIT_WORD_SHIFT 0
245: typedef unsigned long int sljit_uw;
246: typedef long int sljit_w;
247: #elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
248: #define SLJIT_32BIT_ARCHITECTURE 1
249: #define SLJIT_WORD_SHIFT 2
250: typedef unsigned int sljit_uw;
251: typedef int sljit_w;
252: #else
253: #define SLJIT_64BIT_ARCHITECTURE 1
254: #define SLJIT_WORD_SHIFT 3
255: #ifdef _WIN32
256: typedef unsigned __int64 sljit_uw;
257: typedef __int64 sljit_w;
258: #else
259: typedef unsigned long int sljit_uw;
260: typedef long int sljit_w;
261: #endif
262: #endif
263:
264: /* Double precision. */
265: #define SLJIT_FLOAT_SHIFT 3
266:
267: #ifndef SLJIT_W
268:
269: /* Defining long constants. */
270: #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
271: #define SLJIT_W(w) (w##ll)
272: #else
273: #define SLJIT_W(w) (w)
274: #endif
275:
276: #endif /* !SLJIT_W */
277:
278: #ifndef SLJIT_CALL
279:
280: /* ABI (Application Binary Interface) types. */
281: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
282:
283: #if defined(__GNUC__)
284:
285: #define SLJIT_CALL __attribute__ ((fastcall))
286: #define SLJIT_X86_32_FASTCALL 1
287:
288: #elif defined(_WIN32)
289:
290: #ifdef __BORLANDC__
291: #define SLJIT_CALL __msfastcall
292: #else /* __BORLANDC__ */
293: #define SLJIT_CALL __fastcall
294: #endif /* __BORLANDC__ */
295: #define SLJIT_X86_32_FASTCALL 1
296:
297: #else /* defined(_WIN32) */
298: #define SLJIT_CALL __stdcall
299: #endif
300:
301: #else /* Other architectures. */
302:
303: #define SLJIT_CALL
304:
305: #endif /* SLJIT_CONFIG_X86_32 */
306:
307: #endif /* !SLJIT_CALL */
308:
309: #if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN)
310:
311: /* These macros are useful for the application. */
312: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
313: #define SLJIT_BIG_ENDIAN 1
314:
315: #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
316:
317: #ifdef __MIPSEL__
318: #define SLJIT_LITTLE_ENDIAN 1
319: #else
320: #define SLJIT_BIG_ENDIAN 1
321: #endif
322:
323: #else
324: #define SLJIT_LITTLE_ENDIAN 1
325: #endif
326:
327: #endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */
328:
329: /* Sanity check. */
330: #if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
331: #error "Exactly one endianness must be selected"
332: #endif
333:
334: #if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
335: #error "Exactly one endianness must be selected"
336: #endif
337:
338: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
339: /* It seems ppc64 compilers use an indirect addressing for functions.
340: It makes things really complicated. */
341: #define SLJIT_INDIRECT_CALL 1
342: #endif
343:
344: #ifndef SLJIT_SSE2
345:
346: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
347: /* Turn on SSE2 support on x86. */
348: #define SLJIT_SSE2 1
349:
350: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
351: /* Auto detect SSE2 support using CPUID.
352: On 64 bit x86 cpus, sse2 must be present. */
353: #define SLJIT_DETECT_SSE2 1
354: #endif
355:
356: #endif /* (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) */
357:
358: #endif /* !SLJIT_SSE2 */
359:
360: #ifndef SLJIT_UNALIGNED
361:
362: #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
363: || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
364: || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
365: || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
366: || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
367: || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
368: #define SLJIT_UNALIGNED 1
369: #endif
370:
371: #endif /* !SLJIT_UNALIGNED */
372:
373: #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
374: SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size);
375: SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr);
376: #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
377: #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
378: #endif
379:
380: #if (defined SLJIT_DEBUG && SLJIT_DEBUG) || (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
381: #include <stdio.h>
382: #endif
383:
384: #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
385:
386: /* Feel free to redefine these two macros. */
387: #ifndef SLJIT_ASSERT
388:
389: #define SLJIT_HALT_PROCESS() \
390: *((int*)0) = 0
391:
392: #define SLJIT_ASSERT(x) \
393: do { \
394: if (SLJIT_UNLIKELY(!(x))) { \
395: printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
396: SLJIT_HALT_PROCESS(); \
397: } \
398: } while (0)
399:
400: #endif /* !SLJIT_ASSERT */
401:
402: #ifndef SLJIT_ASSERT_STOP
403:
404: #define SLJIT_ASSERT_STOP() \
405: do { \
406: printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
407: SLJIT_HALT_PROCESS(); \
408: } while (0)
409:
410: #endif /* !SLJIT_ASSERT_STOP */
411:
412: #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
413:
414: #undef SLJIT_ASSERT
415: #undef SLJIT_ASSERT_STOP
416:
417: #define SLJIT_ASSERT(x) \
418: do { } while (0)
419: #define SLJIT_ASSERT_STOP() \
420: do { } while (0)
421:
422: #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
423:
424: #ifndef SLJIT_COMPILE_ASSERT
425:
426: /* Should be improved eventually. */
427: #define SLJIT_COMPILE_ASSERT(x, description) \
428: SLJIT_ASSERT(x)
429:
430: #endif /* !SLJIT_COMPILE_ASSERT */
431:
432: #endif
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