mruby 3.3.0
mruby is the lightweight implementation of the Ruby language
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mrbconf.h
1/*
2** mrbconf.h - mruby core configuration
3**
4** See Copyright Notice in mruby.h
5*/
6
7#ifndef MRUBYCONF_H
8#define MRUBYCONF_H
9
10/* architecture selection: */
11/* specify -DMRB_32BIT or -DMRB_64BIT to override */
12#if !defined(MRB_32BIT) && !defined(MRB_64BIT)
13#if UINT64_MAX == SIZE_MAX
14#define MRB_64BIT
15#else
16#define MRB_32BIT
17#endif
18#endif
19
20#if defined(MRB_32BIT) && defined(MRB_64BIT)
21#error Cannot build for 32 and 64 bit architecture at the same time
22#endif
23
24/* configuration options: */
25/* add -DMRB_USE_FLOAT32 to use float instead of double for floating-point numbers */
26//#define MRB_USE_FLOAT32
27
28/* exclude floating-point numbers */
29//#define MRB_NO_FLOAT
30
31/* obsolete configuration */
32#if defined(MRB_USE_FLOAT)
33# define MRB_USE_FLOAT32
34#endif
35
36/* obsolete configuration */
37#if defined(MRB_WITHOUT_FLOAT)
38# define MRB_NO_FLOAT
39#endif
40
41#if defined(MRB_USE_FLOAT32) && defined(MRB_NO_FLOAT)
42#error Cannot define MRB_USE_FLOAT32 and MRB_NO_FLOAT at the same time
43#endif
44
45/* add -DMRB_NO_METHOD_CACHE to disable method cache to save memory */
46//#define MRB_NO_METHOD_CACHE
47/* size of the method cache (need to be the power of 2) */
48//#define MRB_METHOD_CACHE_SIZE (1<<8)
49//#define MRB_USE_INLINE_METHOD_CACHE
50
51/* add -DMRB_USE_METHOD_T_STRUCT on machines that use higher bits of function pointers */
52/* no MRB_USE_METHOD_T_STRUCT requires highest 2 bits of function pointers to be zero */
53#ifndef MRB_USE_METHOD_T_STRUCT
54 // can't use highest 2 bits of function pointers at least on 32bit
55 // Windows and 32bit Linux.
56# ifdef MRB_32BIT
57# define MRB_USE_METHOD_T_STRUCT
58# endif
59#endif
60
61/* define on big endian machines; used by MRB_NAN_BOXING, etc. */
62#ifndef MRB_ENDIAN_BIG
63# if (defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN) || \
64 (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
65# define MRB_ENDIAN_BIG
66# endif
67#endif
68
69/* represent mrb_value in boxed double; conflict with MRB_USE_FLOAT32 and MRB_NO_FLOAT */
70//#define MRB_NAN_BOXING
71
72/* represent mrb_value as a word (natural unit of data for the processor) */
73//#define MRB_WORD_BOXING
74
75/* represent mrb_value as a struct; occupies 2 words */
76//#define MRB_NO_BOXING
77
78/* if no specific boxing type is chosen */
79#if !defined(MRB_NAN_BOXING) && !defined(MRB_WORD_BOXING) && !defined(MRB_NO_BOXING)
80# define MRB_WORD_BOXING
81#endif
82
83/* if defined mruby allocates Float objects in the heap to keep full precision if needed */
84//#define MRB_WORDBOX_NO_FLOAT_TRUNCATE
85
86/* add -DMRB_INT32 to use 32bit integer for mrb_int; conflict with MRB_INT64;
87 Default for 32-bit CPU mode. */
88//#define MRB_INT32
89
90/* add -DMRB_INT64 to use 64bit integer for mrb_int; conflict with MRB_INT32;
91 Default for 64-bit CPU mode (unless using MRB_NAN_BOXING). */
92//#define MRB_INT64
93
94/* if no specific integer type is chosen */
95#if !defined(MRB_INT32) && !defined(MRB_INT64)
96# if defined(MRB_64BIT) && !defined(MRB_NAN_BOXING)
97/* Use 64bit integers on 64bit architecture (without MRB_NAN_BOXING) */
98# define MRB_INT64
99# else
100/* Otherwise use 32bit integers */
101# define MRB_INT32
102# endif
103#endif
104
105/* call malloc_trim(0) from mrb_full_gc() */
106//#define MRB_USE_MALLOC_TRIM
107
108/* string class to handle UTF-8 encoding */
109//#define MRB_UTF8_STRING
110
111/* maximum length of strings */
112/* the default value is 1MB */
113/* set this value to zero to skip the check */
114//#define MRB_STR_LENGTH_MAX 1048576
115
116/* maximum length of arrays */
117/* the default value is 2**17 entries */
118/* set this value to zero to skip the check */
119//#define MRB_ARY_LENGTH_MAX 131072
120
121/* argv max size in mrb_funcall */
122//#define MRB_FUNCALL_ARGC_MAX 16
123
124/* number of object per heap page */
125//#define MRB_HEAP_PAGE_SIZE 1024
126
127/* define if your platform does not support etext, edata */
128//#define MRB_NO_DEFAULT_RO_DATA_P
129
130/* define if your platform supports etext, edata */
131//#define MRB_USE_RO_DATA_P_ETEXT
132/* use MRB_USE_ETEXT_RO_DATA_P by default on Linux */
133#if (defined(__linux__) && !defined(__KERNEL__))
134#define MRB_USE_ETEXT_RO_DATA_P
135#endif
136
137/* you can provide and use mrb_ro_data_p() for your platform.
138 prototype is `mrb_bool mrb_ro_data_p(const char *ptr)` */
139//#define MRB_USE_CUSTOM_RO_DATA_P
140
141/* turn off generational GC by default */
142//#define MRB_GC_TURN_OFF_GENERATIONAL
143
144/* default size of khash table bucket */
145//#define KHASH_DEFAULT_SIZE 32
146
147/* allocated memory address alignment */
148//#define POOL_ALIGNMENT 4
149
150/* page size of memory pool */
151//#define POOL_PAGE_SIZE 16000
152
153/* arena size */
154//#define MRB_GC_ARENA_SIZE 100
155
156/* fixed size GC arena */
157//#define MRB_GC_FIXED_ARENA
158
159/* state atexit stack size */
160//#define MRB_FIXED_STATE_ATEXIT_STACK_SIZE 5
161
162/* fixed size state atexit stack */
163//#define MRB_FIXED_STATE_ATEXIT_STACK
164
165/* -DMRB_NO_XXXX to drop following features */
166//#define MRB_NO_STDIO /* use of stdio */
167
168/* -DMRB_USE_XXXX to enable following features */
169//#define MRB_USE_DEBUG_HOOK /* hooks for debugger */
170//#define MRB_USE_ALL_SYMBOLS /* Symbol.all_symbols */
171
172/* obsolete configurations */
173#ifdef MRB_METHOD_T_STRUCT
174# define MRB_USE_METHOD_T_STRUCT
175#endif
176#if defined(DISABLE_STDIO) || defined(MRB_DISABLE_STDIO)
177# define MRB_NO_STDIO
178#endif
179#if defined(MRB_DISABLE_DIRECT_THREADING) || defined(MRB_NO_DIRECT_THREADING)
180# define MRB_USE_VM_SWITCH_DISPATCH
181#endif
182#if defined(ENABLE_DEBUG) || defined(MRB_ENABLE_DEBUG_HOOK)
183# define MRB_USE_DEBUG_HOOK
184#endif
185#ifdef MRB_ENABLE_ALL_SYMBOLS
186# define MRB_USE_ALL_SYMBOLS
187#endif
188#ifdef MRB_ENABLE_CXX_ABI
189# define MRB_USE_CXX_ABI
190#endif
191#ifdef MRB_ENABLE_CXX_EXCEPTION
192# define MRB_USE_CXX_EXCEPTION
193#endif
194
195/* end of configuration */
196
197#ifndef MRB_NO_STDIO
198# include <stdio.h>
199#endif
200
201/*
202** mruby tuning profiles
203**/
204
205/* A profile for micro controllers */
206#if defined(MRB_CONSTRAINED_BASELINE_PROFILE)
207# ifndef MRB_NO_METHOD_CACHE
208# define MRB_NO_METHOD_CACHE
209# endif
210
211# ifndef KHASH_DEFAULT_SIZE
212# define KHASH_DEFAULT_SIZE 16
213# endif
214
215# ifndef MRB_HEAP_PAGE_SIZE
216# define MRB_HEAP_PAGE_SIZE 256
217# endif
218
219/* A profile for default mruby */
220#elif defined(MRB_BASELINE_PROFILE)
221
222/* A profile for desktop computers or workstations; rich memory! */
223#elif defined(MRB_MAIN_PROFILE)
224# ifndef MRB_METHOD_CACHE_SIZE
225# define MRB_METHOD_CACHE_SIZE (1<<10)
226# endif
227
228# ifndef MRB_HEAP_PAGE_SIZE
229# define MRB_HEAP_PAGE_SIZE 4096
230# endif
231
232/* A profile for server; mruby vm is long life */
233#elif defined(MRB_HIGH_PROFILE)
234# ifndef MRB_METHOD_CACHE_SIZE
235# define MRB_METHOD_CACHE_SIZE (1<<12)
236# endif
237
238# ifndef MRB_HEAP_PAGE_SIZE
239# define MRB_HEAP_PAGE_SIZE 4096
240# endif
241#endif
242
243#endif /* MRUBYCONF_H */