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Damien George04b91472014-05-03 23:27:38 +01001/*
2 * This file is part of the Micro Python project, http://micropython.org/
3 *
4 * The MIT License (MIT)
5 *
6 * Copyright (c) 2013, 2014 Damien P. George
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
Damien George9ddbe292014-12-29 01:02:19 +000026#ifndef __MICROPY_INCLUDED_PY_MPCONFIG_H__
27#define __MICROPY_INCLUDED_PY_MPCONFIG_H__
Damien George04b91472014-05-03 23:27:38 +010028
Paul Sokolovskyb372bfc2014-01-03 17:15:53 +020029// This file contains default configuration settings for MicroPython.
Paul Sokolovskyb1422de2014-10-29 04:08:49 +020030// You can override any of the options below using mpconfigport.h file
31// located in a directory of your port.
Paul Sokolovskyb372bfc2014-01-03 17:15:53 +020032
Paul Sokolovskyb1422de2014-10-29 04:08:49 +020033// mpconfigport.h is a file containing configuration settings for a
34// particular port. mpconfigport.h is actually a default name for
Ville Skyttäca16c382017-05-29 10:08:14 +030035// such config, and it can be overridden using MP_CONFIGFILE preprocessor
Paul Sokolovskyb1422de2014-10-29 04:08:49 +020036// define (you can do that by passing CFLAGS_EXTRA='-DMP_CONFIGFILE="<file.h>"'
37// argument to make when using standard MicroPython makefiles).
38// This is useful to have more than one config per port, for example,
39// release vs debug configs, etc. Note that if you switch from one config
40// to another, you must rebuild from scratch using "-B" switch to make.
41
42#ifdef MP_CONFIGFILE
43#include MP_CONFIGFILE
44#else
Damien George8340c482014-06-12 19:50:17 +010045#include <mpconfigport.h>
Paul Sokolovskyb1422de2014-10-29 04:08:49 +020046#endif
Paul Sokolovskyb372bfc2014-01-03 17:15:53 +020047
Damien George136f6752014-01-07 14:54:15 +000048// Any options not explicitly set in mpconfigport.h will get default
49// values below.
50
51/*****************************************************************************/
Damien George567184e2015-03-29 14:05:46 +010052/* Object representation */
53
54// A Micro Python object is a machine word having the following form:
55// - xxxx...xxx1 : a small int, bits 1 and above are the value
56// - xxxx...xx10 : a qstr, bits 2 and above are the value
57// - xxxx...xx00 : a pointer to an mp_obj_base_t (unless a fake object)
58#define MICROPY_OBJ_REPR_A (0)
59
60// A Micro Python object is a machine word having the following form:
61// - xxxx...xx01 : a small int, bits 2 and above are the value
62// - xxxx...xx11 : a qstr, bits 2 and above are the value
63// - xxxx...xxx0 : a pointer to an mp_obj_base_t (unless a fake object)
64#define MICROPY_OBJ_REPR_B (1)
65
Damien George8b8d1892015-11-06 23:25:10 +000066// A MicroPython object is a machine word having the following form (called R):
Damien George183edef2015-10-17 23:20:57 +010067// - iiiiiiii iiiiiiii iiiiiiii iiiiiii1 small int with 31-bit signed value
Damien George8b8d1892015-11-06 23:25:10 +000068// - 01111111 1qqqqqqq qqqqqqqq qqqqq110 str with 20-bit qstr value
Damien George183edef2015-10-17 23:20:57 +010069// - s1111111 10000000 00000000 00000010 +/- inf
70// - s1111111 1xxxxxxx xxxxxxxx xxxxx010 nan, x != 0
71// - seeeeeee efffffff ffffffff ffffff10 30-bit fp, e != 0xff
72// - pppppppp pppppppp pppppppp pppppp00 ptr (4 byte alignment)
Damien George8b8d1892015-11-06 23:25:10 +000073// Str and float stored as O = R + 0x80800000, retrieved as R = O - 0x80800000.
74// This makes strs easier to encode/decode as they have zeros in the top 9 bits.
Damien George183edef2015-10-17 23:20:57 +010075// This scheme only works with 32-bit word size and float enabled.
Damien George8b8d1892015-11-06 23:25:10 +000076
Damien George183edef2015-10-17 23:20:57 +010077#define MICROPY_OBJ_REPR_C (2)
78
Damien Georgeb8cfb0d2015-11-27 17:09:11 +000079// A MicroPython object is a 64-bit word having the following form (called R):
80// - seeeeeee eeeeffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 64-bit fp, e != 0x7ff
81// - s1111111 11110000 00000000 00000000 00000000 00000000 00000000 00000000 +/- inf
82// - 01111111 11111000 00000000 00000000 00000000 00000000 00000000 00000000 normalised nan
83// - 01111111 11111101 00000000 00000000 iiiiiiii iiiiiiii iiiiiiii iiiiiii1 small int
84// - 01111111 11111110 00000000 00000000 qqqqqqqq qqqqqqqq qqqqqqqq qqqqqqq1 str
85// - 01111111 11111100 00000000 00000000 pppppppp pppppppp pppppppp pppppp00 ptr (4 byte alignment)
86// Stored as O = R + 0x8004000000000000, retrieved as R = O - 0x8004000000000000.
87// This makes pointers have all zeros in the top 32 bits.
88// Small-ints and strs have 1 as LSB to make sure they don't look like pointers
89// to the garbage collector.
90#define MICROPY_OBJ_REPR_D (3)
91
Damien George567184e2015-03-29 14:05:46 +010092#ifndef MICROPY_OBJ_REPR
93#define MICROPY_OBJ_REPR (MICROPY_OBJ_REPR_A)
94#endif
95
96/*****************************************************************************/
Damien George66e18f02014-05-05 13:19:03 +010097/* Memory allocation policy */
98
Paul Sokolovsky75feece2015-12-03 01:40:52 +020099// Number of bytes in memory allocation/GC block. Any size allocated will be
100// rounded up to be multiples of this.
Paul Sokolovskyb4eccfd2015-12-03 01:57:50 +0200101#ifndef MICROPY_BYTES_PER_GC_BLOCK
Paul Sokolovsky75feece2015-12-03 01:40:52 +0200102#define MICROPY_BYTES_PER_GC_BLOCK (4 * BYTES_PER_WORD)
Paul Sokolovskyb4eccfd2015-12-03 01:57:50 +0200103#endif
Paul Sokolovsky75feece2015-12-03 01:40:52 +0200104
Damien Georgefd40a9c2015-01-01 22:04:46 +0000105// Number of words allocated (in BSS) to the GC stack (minimum is 1)
106#ifndef MICROPY_ALLOC_GC_STACK_SIZE
107#define MICROPY_ALLOC_GC_STACK_SIZE (64)
108#endif
109
Damien George5ffe1d82016-08-26 15:35:26 +1000110// Be conservative and always clear to zero newly (re)allocated memory in the GC.
111// This helps eliminate stray pointers that hold on to memory that's no longer
112// used. It decreases performance due to unnecessary memory clearing.
Colin Hogben828df542016-10-31 14:52:11 +0000113// A memory manager which always clears memory can set this to 0.
Damien George5ffe1d82016-08-26 15:35:26 +1000114// TODO Do analysis to understand why some memory is not properly cleared and
115// find a more efficient way to clear it.
116#ifndef MICROPY_GC_CONSERVATIVE_CLEAR
Colin Hogben828df542016-10-31 14:52:11 +0000117#define MICROPY_GC_CONSERVATIVE_CLEAR (MICROPY_ENABLE_GC)
Damien George5ffe1d82016-08-26 15:35:26 +1000118#endif
119
Paul Sokolovsky93e353e2016-07-21 00:37:30 +0300120// Support automatic GC when reaching allocation threshold,
121// configurable by gc.threshold().
122#ifndef MICROPY_GC_ALLOC_THRESHOLD
123#define MICROPY_GC_ALLOC_THRESHOLD (1)
124#endif
125
Damien Georgeade9a052015-06-13 21:53:22 +0100126// Number of bytes to allocate initially when creating new chunks to store
127// interned string data. Smaller numbers lead to more chunks being needed
128// and more wastage at the end of the chunk. Larger numbers lead to wasted
129// space at the end when no more strings need interning.
130#ifndef MICROPY_ALLOC_QSTR_CHUNK_INIT
131#define MICROPY_ALLOC_QSTR_CHUNK_INIT (128)
132#endif
133
Damien Georgee1199ec2014-05-10 17:48:01 +0100134// Initial amount for lexer indentation level
Damien George58ebde42014-05-21 20:32:59 +0100135#ifndef MICROPY_ALLOC_LEXER_INDENT_INIT
136#define MICROPY_ALLOC_LEXER_INDENT_INIT (10)
Damien Georgee1199ec2014-05-10 17:48:01 +0100137#endif
138
139// Increment for lexer indentation level
Damien George58ebde42014-05-21 20:32:59 +0100140#ifndef MICROPY_ALLOC_LEXEL_INDENT_INC
141#define MICROPY_ALLOC_LEXEL_INDENT_INC (8)
Damien Georgee1199ec2014-05-10 17:48:01 +0100142#endif
143
Damien George66e18f02014-05-05 13:19:03 +0100144// Initial amount for parse rule stack
Damien George58ebde42014-05-21 20:32:59 +0100145#ifndef MICROPY_ALLOC_PARSE_RULE_INIT
146#define MICROPY_ALLOC_PARSE_RULE_INIT (64)
Damien George66e18f02014-05-05 13:19:03 +0100147#endif
148
149// Increment for parse rule stack
Damien George58ebde42014-05-21 20:32:59 +0100150#ifndef MICROPY_ALLOC_PARSE_RULE_INC
151#define MICROPY_ALLOC_PARSE_RULE_INC (16)
Damien George66e18f02014-05-05 13:19:03 +0100152#endif
153
154// Initial amount for parse result stack
Damien George58ebde42014-05-21 20:32:59 +0100155#ifndef MICROPY_ALLOC_PARSE_RESULT_INIT
156#define MICROPY_ALLOC_PARSE_RESULT_INIT (32)
Damien George66e18f02014-05-05 13:19:03 +0100157#endif
158
159// Increment for parse result stack
Damien George58ebde42014-05-21 20:32:59 +0100160#ifndef MICROPY_ALLOC_PARSE_RESULT_INC
161#define MICROPY_ALLOC_PARSE_RESULT_INC (16)
Damien George66e18f02014-05-05 13:19:03 +0100162#endif
163
Damien George5042bce2014-05-25 22:06:06 +0100164// Strings this length or less will be interned by the parser
165#ifndef MICROPY_ALLOC_PARSE_INTERN_STRING_LEN
166#define MICROPY_ALLOC_PARSE_INTERN_STRING_LEN (10)
167#endif
168
Damien George58e0f4a2015-09-23 10:50:43 +0100169// Number of bytes to allocate initially when creating new chunks to store
170// parse nodes. Small leads to fragmentation, large leads to excess use.
171#ifndef MICROPY_ALLOC_PARSE_CHUNK_INIT
172#define MICROPY_ALLOC_PARSE_CHUNK_INIT (128)
173#endif
174
Damien George66e18f02014-05-05 13:19:03 +0100175// Initial amount for ids in a scope
Damien George58ebde42014-05-21 20:32:59 +0100176#ifndef MICROPY_ALLOC_SCOPE_ID_INIT
177#define MICROPY_ALLOC_SCOPE_ID_INIT (4)
Damien George66e18f02014-05-05 13:19:03 +0100178#endif
179
180// Increment for ids in a scope
Damien George58ebde42014-05-21 20:32:59 +0100181#ifndef MICROPY_ALLOC_SCOPE_ID_INC
182#define MICROPY_ALLOC_SCOPE_ID_INC (6)
183#endif
184
185// Maximum length of a path in the filesystem
186// So we can allocate a buffer on the stack for path manipulation in import
187#ifndef MICROPY_ALLOC_PATH_MAX
188#define MICROPY_ALLOC_PATH_MAX (512)
Damien George66e18f02014-05-05 13:19:03 +0100189#endif
190
Paul Sokolovsky346aacf2014-11-05 00:27:15 +0200191// Initial size of module dict
192#ifndef MICROPY_MODULE_DICT_SIZE
193#define MICROPY_MODULE_DICT_SIZE (1)
194#endif
195
Damien Georged8914522015-02-27 09:54:12 +0000196// Whether realloc/free should be passed allocated memory region size
197// You must enable this if MICROPY_MEM_STATS is enabled
198#ifndef MICROPY_MALLOC_USES_ALLOCATED_SIZE
199#define MICROPY_MALLOC_USES_ALLOCATED_SIZE (0)
200#endif
201
Damien George95836f82015-01-11 22:27:30 +0000202// Number of bytes used to store qstr length
203// Dictates hard limit on maximum Python identifier length, but 1 byte
204// (limit of 255 bytes in an identifier) should be enough for everyone
205#ifndef MICROPY_QSTR_BYTES_IN_LEN
206#define MICROPY_QSTR_BYTES_IN_LEN (1)
207#endif
208
Damien Georgec3bd9412015-07-20 11:03:13 +0000209// Number of bytes used to store qstr hash
210#ifndef MICROPY_QSTR_BYTES_IN_HASH
211#define MICROPY_QSTR_BYTES_IN_HASH (2)
212#endif
213
Paul Sokolovsky7f1c9812015-03-28 01:14:45 +0200214// Avoid using C stack when making Python function calls. C stack still
215// may be used if there's no free heap.
Paul Sokolovsky20397572015-03-28 01:14:44 +0200216#ifndef MICROPY_STACKLESS
217#define MICROPY_STACKLESS (0)
218#endif
219
Paul Sokolovsky7f1c9812015-03-28 01:14:45 +0200220// Never use C stack when making Python function calls. This may break
221// testsuite as will subtly change which exception is thrown in case
222// of too deep recursion and other similar cases.
223#ifndef MICROPY_STACKLESS_STRICT
224#define MICROPY_STACKLESS_STRICT (0)
225#endif
226
Paul Sokolovskyf32020e2015-11-25 23:22:31 +0200227// Don't use alloca calls. As alloca() is not part of ANSI C, this
228// workaround option is provided for compilers lacking this de-facto
229// standard function. The way it works is allocating from heap, and
230// relying on garbage collection to free it eventually. This is of
231// course much less optimal than real alloca().
232#if defined(MICROPY_NO_ALLOCA) && MICROPY_NO_ALLOCA
233#undef alloca
234#define alloca(x) m_malloc(x)
235#endif
236
Damien George66e18f02014-05-05 13:19:03 +0100237/*****************************************************************************/
Damien George136f6752014-01-07 14:54:15 +0000238/* Micro Python emitters */
239
Damien Georged8c834c2015-11-02 21:55:42 +0000240// Whether to support loading of persistent code
241#ifndef MICROPY_PERSISTENT_CODE_LOAD
242#define MICROPY_PERSISTENT_CODE_LOAD (0)
243#endif
244
245// Whether to support saving of persistent code
246#ifndef MICROPY_PERSISTENT_CODE_SAVE
247#define MICROPY_PERSISTENT_CODE_SAVE (0)
248#endif
249
Damien Georgec8e9c0d2015-11-02 17:27:18 +0000250// Whether generated code can persist independently of the VM/runtime instance
Damien Georged8c834c2015-11-02 21:55:42 +0000251// This is enabled automatically when needed by other features
Damien Georgec8e9c0d2015-11-02 17:27:18 +0000252#ifndef MICROPY_PERSISTENT_CODE
Damien George0a2e9652016-01-31 22:24:16 +0000253#define MICROPY_PERSISTENT_CODE (MICROPY_PERSISTENT_CODE_LOAD || MICROPY_PERSISTENT_CODE_SAVE || MICROPY_MODULE_FROZEN_MPY)
Damien Georgec8e9c0d2015-11-02 17:27:18 +0000254#endif
255
Damien George136f6752014-01-07 14:54:15 +0000256// Whether to emit x64 native code
257#ifndef MICROPY_EMIT_X64
258#define MICROPY_EMIT_X64 (0)
259#endif
260
Damien Georgec90f59e2014-09-06 23:06:36 +0100261// Whether to emit x86 native code
262#ifndef MICROPY_EMIT_X86
263#define MICROPY_EMIT_X86 (0)
264#endif
265
Damien George136f6752014-01-07 14:54:15 +0000266// Whether to emit thumb native code
267#ifndef MICROPY_EMIT_THUMB
268#define MICROPY_EMIT_THUMB (0)
269#endif
270
271// Whether to enable the thumb inline assembler
272#ifndef MICROPY_EMIT_INLINE_THUMB
273#define MICROPY_EMIT_INLINE_THUMB (0)
274#endif
275
Damien Georgee8135412015-10-16 22:08:57 +0100276// Whether to enable ARMv7-M instruction support in the Thumb2 inline assembler
277#ifndef MICROPY_EMIT_INLINE_THUMB_ARMV7M
278#define MICROPY_EMIT_INLINE_THUMB_ARMV7M (1)
279#endif
280
=50089722015-04-14 13:14:57 +0100281// Whether to enable float support in the Thumb2 inline assembler
282#ifndef MICROPY_EMIT_INLINE_THUMB_FLOAT
283#define MICROPY_EMIT_INLINE_THUMB_FLOAT (1)
284#endif
285
Fabian Vogtfe3d16e2014-08-16 22:55:53 +0200286// Whether to emit ARM native code
287#ifndef MICROPY_EMIT_ARM
288#define MICROPY_EMIT_ARM (0)
289#endif
290
Damien George8e5aced2016-12-09 16:39:39 +1100291// Whether to emit Xtensa native code
292#ifndef MICROPY_EMIT_XTENSA
293#define MICROPY_EMIT_XTENSA (0)
294#endif
295
Damien Georgef76b1bf2016-12-09 17:03:33 +1100296// Whether to enable the Xtensa inline assembler
297#ifndef MICROPY_EMIT_INLINE_XTENSA
298#define MICROPY_EMIT_INLINE_XTENSA (0)
299#endif
300
Damien George2ac4af62014-08-15 16:45:41 +0100301// Convenience definition for whether any native emitter is enabled
Damien George8e5aced2016-12-09 16:39:39 +1100302#define MICROPY_EMIT_NATIVE (MICROPY_EMIT_X64 || MICROPY_EMIT_X86 || MICROPY_EMIT_THUMB || MICROPY_EMIT_ARM || MICROPY_EMIT_XTENSA)
Damien George2ac4af62014-08-15 16:45:41 +0100303
Damien Georgead297a12016-12-09 13:17:49 +1100304// Convenience definition for whether any inline assembler emitter is enabled
Damien Georgef76b1bf2016-12-09 17:03:33 +1100305#define MICROPY_EMIT_INLINE_ASM (MICROPY_EMIT_INLINE_THUMB || MICROPY_EMIT_INLINE_XTENSA)
Damien Georgead297a12016-12-09 13:17:49 +1100306
Damien George136f6752014-01-07 14:54:15 +0000307/*****************************************************************************/
Damien George58ebde42014-05-21 20:32:59 +0100308/* Compiler configuration */
309
Damien Georgedd5353a2015-12-18 12:35:44 +0000310// Whether to include the compiler
311#ifndef MICROPY_ENABLE_COMPILER
312#define MICROPY_ENABLE_COMPILER (1)
313#endif
314
Damien Georgeea235202016-02-11 22:30:53 +0000315// Whether the compiler is dynamically configurable (ie at runtime)
316#ifndef MICROPY_DYNAMIC_COMPILER
317#define MICROPY_DYNAMIC_COMPILER (0)
318#endif
319
320// Configure dynamic compiler macros
321#if MICROPY_DYNAMIC_COMPILER
322#define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE_DYNAMIC (mp_dynamic_compiler.opt_cache_map_lookup_in_bytecode)
323#define MICROPY_PY_BUILTINS_STR_UNICODE_DYNAMIC (mp_dynamic_compiler.py_builtins_str_unicode)
324#else
325#define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE_DYNAMIC MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE
326#define MICROPY_PY_BUILTINS_STR_UNICODE_DYNAMIC MICROPY_PY_BUILTINS_STR_UNICODE
327#endif
328
Damien George64f2b212015-10-08 14:58:15 +0100329// Whether to enable constant folding; eg 1+2 rewritten as 3
330#ifndef MICROPY_COMP_CONST_FOLDING
331#define MICROPY_COMP_CONST_FOLDING (1)
332#endif
333
Damien Georgeddd1e182015-01-10 14:07:24 +0000334// Whether to enable lookup of constants in modules; eg module.CONST
335#ifndef MICROPY_COMP_MODULE_CONST
336#define MICROPY_COMP_MODULE_CONST (0)
337#endif
338
Damien George58ebde42014-05-21 20:32:59 +0100339// Whether to enable constant optimisation; id = const(value)
340#ifndef MICROPY_COMP_CONST
341#define MICROPY_COMP_CONST (1)
342#endif
343
Damien George42e0c592015-03-14 13:11:35 +0000344// Whether to enable optimisation of: a, b = c, d
345// Costs 124 bytes (Thumb2)
346#ifndef MICROPY_COMP_DOUBLE_TUPLE_ASSIGN
347#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (1)
348#endif
349
350// Whether to enable optimisation of: a, b, c = d, e, f
351// Cost 156 bytes (Thumb2)
352#ifndef MICROPY_COMP_TRIPLE_TUPLE_ASSIGN
353#define MICROPY_COMP_TRIPLE_TUPLE_ASSIGN (0)
354#endif
355
Damien Georgeae54fbf2017-04-22 14:58:01 +1000356// Whether to enable optimisation of: return a if b else c
357// Costs about 80 bytes (Thumb2) and saves 2 bytes of bytecode for each use
358#ifndef MICROPY_COMP_RETURN_IF_EXPR
359#define MICROPY_COMP_RETURN_IF_EXPR (0)
360#endif
361
Damien George58ebde42014-05-21 20:32:59 +0100362/*****************************************************************************/
Damien George136f6752014-01-07 14:54:15 +0000363/* Internal debugging stuff */
364
365// Whether to collect memory allocation stats
366#ifndef MICROPY_MEM_STATS
367#define MICROPY_MEM_STATS (0)
368#endif
369
Damien Georgecbd2f742014-01-19 11:48:48 +0000370// Whether to build functions that print debugging info:
Damien George3417bc22014-05-10 10:36:38 +0100371// mp_bytecode_print
Damien Georgecbd2f742014-01-19 11:48:48 +0000372// mp_parse_node_print
373#ifndef MICROPY_DEBUG_PRINTERS
374#define MICROPY_DEBUG_PRINTERS (0)
Damien Georged3ebe482014-01-07 15:20:33 +0000375#endif
376
Damien George136f6752014-01-07 14:54:15 +0000377/*****************************************************************************/
Damien Georgeee3fd462014-05-24 23:03:12 +0100378/* Optimisations */
379
380// Whether to use computed gotos in the VM, or a switch
381// Computed gotos are roughly 10% faster, and increase VM code size by a little
382#ifndef MICROPY_OPT_COMPUTED_GOTO
383#define MICROPY_OPT_COMPUTED_GOTO (0)
384#endif
385
Damien George7ee91cf2015-01-06 12:51:39 +0000386// Whether to cache result of map lookups in LOAD_NAME, LOAD_GLOBAL, LOAD_ATTR,
387// STORE_ATTR bytecodes. Uses 1 byte extra RAM for each of these opcodes and
388// uses a bit of extra code ROM, but greatly improves lookup speed.
389#ifndef MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE
390#define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE (0)
391#endif
392
Doug Currie2e2e15c2016-01-30 22:35:58 -0500393// Whether to use fast versions of bitwise operations (and, or, xor) when the
394// arguments are both positive. Increases Thumb2 code size by about 250 bytes.
395#ifndef MICROPY_OPT_MPZ_BITWISE
396#define MICROPY_OPT_MPZ_BITWISE (0)
397#endif
398
Damien Georgeee3fd462014-05-24 23:03:12 +0100399/*****************************************************************************/
400/* Python internal features */
Damien George136f6752014-01-07 14:54:15 +0000401
Damien George6b239c22016-11-16 16:04:57 +1100402// Whether to use the POSIX reader for importing files
403#ifndef MICROPY_READER_POSIX
404#define MICROPY_READER_POSIX (0)
405#endif
406
Damien Georgedcb9ea72017-01-27 15:10:09 +1100407// Whether to use the VFS reader for importing files
408#ifndef MICROPY_READER_VFS
409#define MICROPY_READER_VFS (0)
410#endif
411
Damien George40d84302016-02-15 22:46:21 +0000412// Hook for the VM at the start of the opcode loop (can contain variable
413// definitions usable by the other hook functions)
414#ifndef MICROPY_VM_HOOK_INIT
415#define MICROPY_VM_HOOK_INIT
416#endif
417
418// Hook for the VM during the opcode loop (but only after jump opcodes)
419#ifndef MICROPY_VM_HOOK_LOOP
420#define MICROPY_VM_HOOK_LOOP
421#endif
422
423// Hook for the VM just before return opcode is finished being interpreted
424#ifndef MICROPY_VM_HOOK_RETURN
425#define MICROPY_VM_HOOK_RETURN
426#endif
427
Damien Georged3ebe482014-01-07 15:20:33 +0000428// Whether to include the garbage collector
429#ifndef MICROPY_ENABLE_GC
430#define MICROPY_ENABLE_GC (0)
431#endif
432
Damien George12bab722014-04-05 20:35:48 +0100433// Whether to enable finalisers in the garbage collector (ie call __del__)
Damien George7860c2a2014-11-05 21:16:41 +0000434#ifndef MICROPY_ENABLE_FINALISER
435#define MICROPY_ENABLE_FINALISER (0)
Damien George12bab722014-04-05 20:35:48 +0100436#endif
437
Paul Sokolovsky23668692014-06-25 03:03:34 +0300438// Whether to check C stack usage. C stack used for calling Python functions,
439// etc. Not checking means segfault on overflow.
440#ifndef MICROPY_STACK_CHECK
Damien George4a5895c2015-01-09 00:10:55 +0000441#define MICROPY_STACK_CHECK (0)
Paul Sokolovsky23668692014-06-25 03:03:34 +0300442#endif
443
Dave Hylands5b7fd202014-07-01 23:46:53 -0700444// Whether to have an emergency exception buffer
445#ifndef MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF
446#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (0)
447#endif
448#if MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF
449# ifndef MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE
450# define MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE (0) // 0 - implies dynamic allocation
451# endif
452#endif
453
Damien Georgebbb4b982017-04-10 17:19:36 +1000454// Whether to provide the mp_kbd_exception object, and micropython.kbd_intr function
Damien George7f1da0a2016-12-15 13:00:19 +1100455#ifndef MICROPY_KBD_EXCEPTION
456#define MICROPY_KBD_EXCEPTION (0)
457#endif
458
Paul Sokolovsky1c9210b2015-12-23 00:06:37 +0200459// Prefer to raise KeyboardInterrupt asynchronously (from signal or interrupt
460// handler) - if supported by a particular port.
461#ifndef MICROPY_ASYNC_KBD_INTR
462#define MICROPY_ASYNC_KBD_INTR (0)
463#endif
464
Damien George136f6752014-01-07 14:54:15 +0000465// Whether to include REPL helper function
Damien George58ebde42014-05-21 20:32:59 +0100466#ifndef MICROPY_HELPER_REPL
467#define MICROPY_HELPER_REPL (0)
Damien George136f6752014-01-07 14:54:15 +0000468#endif
469
Tom Soulanille7d588b02015-07-09 16:32:36 -0700470// Whether to include emacs-style readline behavior in REPL
471#ifndef MICROPY_REPL_EMACS_KEYS
Damien Georged8a7f8b2015-07-26 15:49:13 +0100472#define MICROPY_REPL_EMACS_KEYS (0)
Tom Soulanille7d588b02015-07-09 16:32:36 -0700473#endif
474
Damien George0af73012015-08-20 10:34:16 +0100475// Whether to implement auto-indent in REPL
476#ifndef MICROPY_REPL_AUTO_INDENT
477#define MICROPY_REPL_AUTO_INDENT (0)
478#endif
479
Paul Sokolovsky87bc8e22015-01-15 10:46:27 +0200480// Whether port requires event-driven REPL functions
481#ifndef MICROPY_REPL_EVENT_DRIVEN
482#define MICROPY_REPL_EVENT_DRIVEN (0)
483#endif
484
Damien Georged3ebe482014-01-07 15:20:33 +0000485// Whether to include lexer helper function for unix
Damien George58ebde42014-05-21 20:32:59 +0100486#ifndef MICROPY_HELPER_LEXER_UNIX
487#define MICROPY_HELPER_LEXER_UNIX (0)
Damien Georged3ebe482014-01-07 15:20:33 +0000488#endif
489
Paul Sokolovsky48b35722014-01-12 17:30:48 +0200490// Long int implementation
491#define MICROPY_LONGINT_IMPL_NONE (0)
492#define MICROPY_LONGINT_IMPL_LONGLONG (1)
Damien George438c88d2014-02-22 19:25:23 +0000493#define MICROPY_LONGINT_IMPL_MPZ (2)
Paul Sokolovsky48b35722014-01-12 17:30:48 +0200494
495#ifndef MICROPY_LONGINT_IMPL
496#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_NONE)
497#endif
498
499#if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_LONGLONG
500typedef long long mp_longint_impl_t;
501#endif
502
Damien George62ad1892014-01-29 21:51:51 +0000503// Whether to include information in the byte code to determine source
504// line number (increases RAM usage, but doesn't slow byte code execution)
505#ifndef MICROPY_ENABLE_SOURCE_LINE
506#define MICROPY_ENABLE_SOURCE_LINE (0)
507#endif
508
Damien George1463c1f2014-04-25 23:52:57 +0100509// Whether to include doc strings (increases RAM usage)
510#ifndef MICROPY_ENABLE_DOC_STRING
511#define MICROPY_ENABLE_DOC_STRING (0)
512#endif
513
Damien George1e9a92f2014-11-06 17:36:16 +0000514// Exception messages are short static strings
Paul Sokolovsky1f85d622014-05-01 01:35:38 +0300515#define MICROPY_ERROR_REPORTING_TERSE (1)
516// Exception messages provide basic error details
517#define MICROPY_ERROR_REPORTING_NORMAL (2)
518// Exception messages provide full info, e.g. object names
519#define MICROPY_ERROR_REPORTING_DETAILED (3)
520
521#ifndef MICROPY_ERROR_REPORTING
522#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_NORMAL)
523#endif
524
Paul Sokolovsky8a8c1fc2015-01-01 09:29:28 +0200525// Whether issue warnings during compiling/execution
526#ifndef MICROPY_WARNINGS
527#define MICROPY_WARNINGS (0)
528#endif
529
Damien George0c36da02014-03-08 15:24:39 +0000530// Float and complex implementation
531#define MICROPY_FLOAT_IMPL_NONE (0)
532#define MICROPY_FLOAT_IMPL_FLOAT (1)
533#define MICROPY_FLOAT_IMPL_DOUBLE (2)
534
535#ifndef MICROPY_FLOAT_IMPL
536#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_NONE)
537#endif
538
539#if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT
Damien Georgefb510b32014-06-01 13:32:54 +0100540#define MICROPY_PY_BUILTINS_FLOAT (1)
Damien George561844f2016-11-03 12:33:01 +1100541#define MICROPY_FLOAT_CONST(x) x##F
Damien George0c36da02014-03-08 15:24:39 +0000542#define MICROPY_FLOAT_C_FUN(fun) fun##f
543typedef float mp_float_t;
544#elif MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_DOUBLE
Damien Georgefb510b32014-06-01 13:32:54 +0100545#define MICROPY_PY_BUILTINS_FLOAT (1)
Damien George561844f2016-11-03 12:33:01 +1100546#define MICROPY_FLOAT_CONST(x) x
Damien George0c36da02014-03-08 15:24:39 +0000547#define MICROPY_FLOAT_C_FUN(fun) fun
548typedef double mp_float_t;
549#else
Damien Georgefb510b32014-06-01 13:32:54 +0100550#define MICROPY_PY_BUILTINS_FLOAT (0)
Damien George136f6752014-01-07 14:54:15 +0000551#endif
552
Paul Sokolovsky3b6f7b92014-06-20 01:48:35 +0300553#ifndef MICROPY_PY_BUILTINS_COMPLEX
554#define MICROPY_PY_BUILTINS_COMPLEX (MICROPY_PY_BUILTINS_FLOAT)
555#endif
556
Damien Georgea73501b2017-04-06 17:27:33 +1000557// Whether to provide a high-quality hash for float and complex numbers.
558// Otherwise the default is a very simple but correct hashing function.
559#ifndef MICROPY_FLOAT_HIGH_QUALITY_HASH
560#define MICROPY_FLOAT_HIGH_QUALITY_HASH (0)
561#endif
562
Paul Sokolovskydcac8802014-01-16 19:19:50 +0200563// Enable features which improve CPython compatibility
564// but may lead to more code size/memory usage.
565// TODO: Originally intended as generic category to not
566// add bunch of once-off options. May need refactoring later
567#ifndef MICROPY_CPYTHON_COMPAT
568#define MICROPY_CPYTHON_COMPAT (1)
569#endif
570
Paul Sokolovsky9a973972017-04-02 21:20:07 +0300571// Perform full checks as done by CPython. Disabling this
572// may produce incorrect results, if incorrect data is fed,
573// but should not lead to MicroPython crashes or similar
574// grave issues (in other words, only user app should be,
575// affected, not system).
576#ifndef MICROPY_FULL_CHECKS
577#define MICROPY_FULL_CHECKS (1)
578#endif
579
Paul Sokolovsky0ef015b2014-05-07 02:23:46 +0300580// Whether POSIX-semantics non-blocking streams are supported
581#ifndef MICROPY_STREAMS_NON_BLOCK
582#define MICROPY_STREAMS_NON_BLOCK (0)
583#endif
584
Paul Sokolovsky61e77a42016-07-30 20:05:56 +0300585// Whether to provide stream functions with POSIX-like signatures
586// (useful for porting existing libraries to MicroPython).
587#ifndef MICROPY_STREAMS_POSIX_API
588#define MICROPY_STREAMS_POSIX_API (0)
589#endif
590
Damien George3c9c3682015-09-15 14:56:13 +0100591// Whether to call __init__ when importing builtin modules for the first time
592#ifndef MICROPY_MODULE_BUILTIN_INIT
593#define MICROPY_MODULE_BUILTIN_INIT (0)
594#endif
595
Damien Georgec14a8162014-10-12 11:46:04 +0100596// Whether module weak links are supported
597#ifndef MICROPY_MODULE_WEAK_LINKS
598#define MICROPY_MODULE_WEAK_LINKS (0)
599#endif
600
Damien George0a2e9652016-01-31 22:24:16 +0000601// Whether frozen modules are supported in the form of strings
602#ifndef MICROPY_MODULE_FROZEN_STR
603#define MICROPY_MODULE_FROZEN_STR (0)
604#endif
605
606// Whether frozen modules are supported in the form of .mpy files
607#ifndef MICROPY_MODULE_FROZEN_MPY
608#define MICROPY_MODULE_FROZEN_MPY (0)
609#endif
610
611// Convenience macro for whether frozen modules are supported
Paul Sokolovsky640e0b22015-01-20 11:52:12 +0200612#ifndef MICROPY_MODULE_FROZEN
Damien George0a2e9652016-01-31 22:24:16 +0000613#define MICROPY_MODULE_FROZEN (MICROPY_MODULE_FROZEN_STR || MICROPY_MODULE_FROZEN_MPY)
Paul Sokolovsky640e0b22015-01-20 11:52:12 +0200614#endif
615
Damien George78d702c2014-12-09 16:19:48 +0000616// Whether you can override builtins in the builtins module
617#ifndef MICROPY_CAN_OVERRIDE_BUILTINS
618#define MICROPY_CAN_OVERRIDE_BUILTINS (0)
619#endif
620
Damien George06593fb2015-06-19 12:49:10 +0000621// Whether to check that the "self" argument of a builtin method has the
622// correct type. Such an explicit check is only needed if a builtin
623// method escapes to Python land without a first argument, eg
624// list.append([], 1). Without this check such calls will have undefined
625// behaviour (usually segfault) if the first argument is the wrong type.
626#ifndef MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG
627#define MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG (1)
628#endif
629
Damien George3f56fd62016-05-10 10:54:06 +0100630// Whether to use internally defined errno's (otherwise system provided ones)
631#ifndef MICROPY_USE_INTERNAL_ERRNO
632#define MICROPY_USE_INTERNAL_ERRNO (0)
633#endif
634
Delio Brignolie2ac8bb2016-08-21 11:33:37 +0200635// Whether to use internally defined *printf() functions (otherwise external ones)
636#ifndef MICROPY_USE_INTERNAL_PRINTF
637#define MICROPY_USE_INTERNAL_PRINTF (1)
638#endif
639
Damien George6e74d242017-02-16 18:05:06 +1100640// Support for internal scheduler
641#ifndef MICROPY_ENABLE_SCHEDULER
642#define MICROPY_ENABLE_SCHEDULER (0)
643#endif
644
645// Maximum number of entries in the scheduler
646#ifndef MICROPY_SCHEDULER_DEPTH
647#define MICROPY_SCHEDULER_DEPTH (4)
648#endif
649
Damien Georgedcb9ea72017-01-27 15:10:09 +1100650// Support for generic VFS sub-system
651#ifndef MICROPY_VFS
652#define MICROPY_VFS (0)
653#endif
654
Damien Georgeee3fd462014-05-24 23:03:12 +0100655/*****************************************************************************/
656/* Fine control over Python builtins, classes, modules, etc */
657
stijn3cc17c62015-02-14 18:44:31 +0100658// Whether to implement attributes on functions
659#ifndef MICROPY_PY_FUNCTION_ATTRS
660#define MICROPY_PY_FUNCTION_ATTRS (0)
661#endif
662
stijn28fa84b2015-02-14 18:43:54 +0100663// Whether to support descriptors (__get__ and __set__)
664// This costs some code size and makes all load attrs and store attrs slow
665#ifndef MICROPY_PY_DESCRIPTORS
666#define MICROPY_PY_DESCRIPTORS (0)
667#endif
668
dmazzella18e65692017-01-03 11:00:12 +0100669// Whether to support class __delattr__ and __setattr__ methods
670// This costs some code size and makes all del attrs and store attrs slow
671#ifndef MICROPY_PY_DELATTR_SETATTR
672#define MICROPY_PY_DELATTR_SETATTR (0)
673#endif
674
pohmelie81ebba72016-01-27 23:23:11 +0300675// Support for async/await/async for/async with
676#ifndef MICROPY_PY_ASYNC_AWAIT
677#define MICROPY_PY_ASYNC_AWAIT (1)
678#endif
679
Paul Sokolovskya1b442b2016-07-22 00:46:24 +0300680// Issue a warning when comparing str and bytes objects
Paul Sokolovsky707cae72016-07-22 00:34:34 +0300681#ifndef MICROPY_PY_STR_BYTES_CMP_WARN
682#define MICROPY_PY_STR_BYTES_CMP_WARN (0)
683#endif
684
Paul Sokolovsky12bc13e2014-06-13 01:05:19 +0300685// Whether str object is proper unicode
686#ifndef MICROPY_PY_BUILTINS_STR_UNICODE
687#define MICROPY_PY_BUILTINS_STR_UNICODE (0)
Damien George8546ce12014-06-28 10:29:22 +0100688#endif
Damien Georgeb3a50f02014-06-28 10:27:15 +0100689
Paul Sokolovsky1b5abfc2016-05-22 00:13:44 +0300690// Whether str.center() method provided
691#ifndef MICROPY_PY_BUILTINS_STR_CENTER
692#define MICROPY_PY_BUILTINS_STR_CENTER (0)
693#endif
694
Paul Sokolovsky56eb25f2016-08-07 06:46:55 +0300695// Whether str.partition()/str.rpartition() method provided
696#ifndef MICROPY_PY_BUILTINS_STR_PARTITION
697#define MICROPY_PY_BUILTINS_STR_PARTITION (0)
698#endif
699
Paul Sokolovskyac2f7a72015-04-04 00:09:23 +0300700// Whether str.splitlines() method provided
701#ifndef MICROPY_PY_BUILTINS_STR_SPLITLINES
702#define MICROPY_PY_BUILTINS_STR_SPLITLINES (0)
703#endif
704
Paul Sokolovskycb78f862014-06-27 20:39:09 +0300705// Whether to support bytearray object
706#ifndef MICROPY_PY_BUILTINS_BYTEARRAY
707#define MICROPY_PY_BUILTINS_BYTEARRAY (1)
Paul Sokolovsky12bc13e2014-06-13 01:05:19 +0300708#endif
709
Damien Georgedd4f4532014-10-23 13:34:35 +0100710// Whether to support memoryview object
711#ifndef MICROPY_PY_BUILTINS_MEMORYVIEW
712#define MICROPY_PY_BUILTINS_MEMORYVIEW (0)
713#endif
714
Damien George3ebd4d02014-06-01 13:46:47 +0100715// Whether to support set object
716#ifndef MICROPY_PY_BUILTINS_SET
717#define MICROPY_PY_BUILTINS_SET (1)
718#endif
719
Damien Georgefb510b32014-06-01 13:32:54 +0100720// Whether to support slice subscript operators and slice object
721#ifndef MICROPY_PY_BUILTINS_SLICE
722#define MICROPY_PY_BUILTINS_SLICE (1)
Damien Georgeee3fd462014-05-24 23:03:12 +0100723#endif
724
Tom Soulanilleaeb62f92015-09-11 14:31:32 -0700725// Whether to support slice attribute read access,
726// i.e. slice.start, slice.stop, slice.step
727#ifndef MICROPY_PY_BUILTINS_SLICE_ATTRS
728#define MICROPY_PY_BUILTINS_SLICE_ATTRS (0)
729#endif
730
Damien Georgeee3fd462014-05-24 23:03:12 +0100731// Whether to support frozenset object
Damien Georgefb510b32014-06-01 13:32:54 +0100732#ifndef MICROPY_PY_BUILTINS_FROZENSET
733#define MICROPY_PY_BUILTINS_FROZENSET (0)
Damien Georgeee3fd462014-05-24 23:03:12 +0100734#endif
735
Damien Georgefb510b32014-06-01 13:32:54 +0100736// Whether to support property object
737#ifndef MICROPY_PY_BUILTINS_PROPERTY
738#define MICROPY_PY_BUILTINS_PROPERTY (1)
Damien Georgeee3fd462014-05-24 23:03:12 +0100739#endif
740
Peter D. Grayb2a237d2015-03-06 14:48:14 -0500741// Whether to implement the start/stop/step attributes (readback) on
742// the "range" builtin type. Rarely used, and costs ~60 bytes (x86).
743#ifndef MICROPY_PY_BUILTINS_RANGE_ATTRS
744#define MICROPY_PY_BUILTINS_RANGE_ATTRS (1)
745#endif
746
Daniel Campora077812b2015-06-29 22:45:39 +0200747// Whether to support timeout exceptions (like socket.timeout)
748#ifndef MICROPY_PY_BUILTINS_TIMEOUTERROR
749#define MICROPY_PY_BUILTINS_TIMEOUTERROR (0)
750#endif
751
Paul Sokolovsky98c4bc32015-01-30 01:42:49 +0200752// Whether to support complete set of special methods
753// for user classes, otherwise only the most used
754#ifndef MICROPY_PY_ALL_SPECIAL_METHODS
755#define MICROPY_PY_ALL_SPECIAL_METHODS (0)
756#endif
757
Damien Georgec9fc6202014-10-25 21:59:14 +0100758// Whether to support compile function
759#ifndef MICROPY_PY_BUILTINS_COMPILE
760#define MICROPY_PY_BUILTINS_COMPILE (0)
761#endif
762
Paul Sokolovskye2d44e32015-04-06 23:50:37 +0300763// Whether to support enumerate function(type)
764#ifndef MICROPY_PY_BUILTINS_ENUMERATE
765#define MICROPY_PY_BUILTINS_ENUMERATE (1)
766#endif
767
Damien Georgedd5353a2015-12-18 12:35:44 +0000768// Whether to support eval and exec functions
769// By default they are supported if the compiler is enabled
770#ifndef MICROPY_PY_BUILTINS_EVAL_EXEC
771#define MICROPY_PY_BUILTINS_EVAL_EXEC (MICROPY_ENABLE_COMPILER)
772#endif
773
Damien George2a3e2b92014-12-19 13:36:17 +0000774// Whether to support the Python 2 execfile function
775#ifndef MICROPY_PY_BUILTINS_EXECFILE
776#define MICROPY_PY_BUILTINS_EXECFILE (0)
777#endif
778
Paul Sokolovsky22ff3972015-08-20 01:01:56 +0300779// Whether to support filter function(type)
780#ifndef MICROPY_PY_BUILTINS_FILTER
781#define MICROPY_PY_BUILTINS_FILTER (1)
782#endif
783
Paul Sokolovsky282ca092015-04-07 00:16:51 +0300784// Whether to support reversed function(type)
785#ifndef MICROPY_PY_BUILTINS_REVERSED
786#define MICROPY_PY_BUILTINS_REVERSED (1)
787#endif
788
Paul Sokolovsky5ab5ac52015-05-04 19:45:53 +0300789// Whether to define "NotImplemented" special constant
790#ifndef MICROPY_PY_BUILTINS_NOTIMPLEMENTED
791#define MICROPY_PY_BUILTINS_NOTIMPLEMENTED (0)
792#endif
793
Damien Georgebc763022017-06-01 15:32:23 +1000794// Whether to provide the built-in input() function. The implementation of this
795// uses mp-readline, so can only be enabled if the port uses this readline.
796#ifndef MICROPY_PY_BUILTINS_INPUT
797#define MICROPY_PY_BUILTINS_INPUT (0)
798#endif
799
pohmelie354e6882015-12-07 15:35:48 +0300800// Whether to support min/max functions
801#ifndef MICROPY_PY_BUILTINS_MIN_MAX
802#define MICROPY_PY_BUILTINS_MIN_MAX (1)
803#endif
804
Damien Georgea19b5a02017-02-03 12:35:48 +1100805// Support for calls to pow() with 3 integer arguments
806#ifndef MICROPY_PY_BUILTINS_POW3
807#define MICROPY_PY_BUILTINS_POW3 (0)
808#endif
809
Damien George9f04dfb2017-01-21 23:17:51 +1100810// Whether to provide the help function
811#ifndef MICROPY_PY_BUILTINS_HELP
812#define MICROPY_PY_BUILTINS_HELP (0)
813#endif
814
815// Use this to configure the help text shown for help(). It should be a
816// variable with the type "const char*". A sensible default is provided.
817#ifndef MICROPY_PY_BUILTINS_HELP_TEXT
818#define MICROPY_PY_BUILTINS_HELP_TEXT mp_help_default_text
819#endif
820
Damien Georgef5172af2017-01-22 12:12:54 +1100821// Add the ability to list the available modules when executing help('modules')
822#ifndef MICROPY_PY_BUILTINS_HELP_MODULES
823#define MICROPY_PY_BUILTINS_HELP_MODULES (0)
824#endif
825
Paul Sokolovskyd0f5e612014-07-25 11:00:15 +0300826// Whether to set __file__ for imported modules
827#ifndef MICROPY_PY___FILE__
828#define MICROPY_PY___FILE__ (1)
829#endif
830
Damien George89deec02015-01-09 20:12:54 +0000831// Whether to provide mem-info related functions in micropython module
832#ifndef MICROPY_PY_MICROPYTHON_MEM_INFO
833#define MICROPY_PY_MICROPYTHON_MEM_INFO (0)
834#endif
835
Paul Sokolovskycb78f862014-06-27 20:39:09 +0300836// Whether to provide "array" module. Note that large chunk of the
837// underlying code is shared with "bytearray" builtin type, so to
838// get real savings, it should be disabled too.
839#ifndef MICROPY_PY_ARRAY
840#define MICROPY_PY_ARRAY (1)
841#endif
842
Paul Sokolovskycefcbb22015-02-27 22:16:05 +0200843// Whether to support slice assignments for array (and bytearray).
844// This is rarely used, but adds ~0.5K of code.
845#ifndef MICROPY_PY_ARRAY_SLICE_ASSIGN
846#define MICROPY_PY_ARRAY_SLICE_ASSIGN (0)
847#endif
848
Damien George5aa311d2015-04-21 14:14:24 +0000849// Whether to support attrtuple type (MicroPython extension)
850// It provides space-efficient tuples with attribute access
851#ifndef MICROPY_PY_ATTRTUPLE
852#define MICROPY_PY_ATTRTUPLE (1)
853#endif
854
Damien Georgeee3fd462014-05-24 23:03:12 +0100855// Whether to provide "collections" module
856#ifndef MICROPY_PY_COLLECTIONS
857#define MICROPY_PY_COLLECTIONS (1)
858#endif
859
Paul Sokolovsky0ef01d02015-03-18 01:25:04 +0200860// Whether to provide "collections.OrderedDict" type
861#ifndef MICROPY_PY_COLLECTIONS_ORDEREDDICT
862#define MICROPY_PY_COLLECTIONS_ORDEREDDICT (0)
863#endif
864
Damien Georgeee3fd462014-05-24 23:03:12 +0100865// Whether to provide "math" module
866#ifndef MICROPY_PY_MATH
867#define MICROPY_PY_MATH (1)
868#endif
869
Damien George5cbeace2015-02-22 14:48:18 +0000870// Whether to provide special math functions: math.{erf,erfc,gamma,lgamma}
871#ifndef MICROPY_PY_MATH_SPECIAL_FUNCTIONS
872#define MICROPY_PY_MATH_SPECIAL_FUNCTIONS (0)
873#endif
874
Damien Georgeee3fd462014-05-24 23:03:12 +0100875// Whether to provide "cmath" module
876#ifndef MICROPY_PY_CMATH
877#define MICROPY_PY_CMATH (0)
878#endif
879
880// Whether to provide "gc" module
881#ifndef MICROPY_PY_GC
882#define MICROPY_PY_GC (1)
883#endif
884
Paul Sokolovsky755a55f2014-06-05 22:48:02 +0300885// Whether to return number of collected objects from gc.collect()
886#ifndef MICROPY_PY_GC_COLLECT_RETVAL
887#define MICROPY_PY_GC_COLLECT_RETVAL (0)
888#endif
889
Damien Georgeee3fd462014-05-24 23:03:12 +0100890// Whether to provide "io" module
891#ifndef MICROPY_PY_IO
892#define MICROPY_PY_IO (1)
893#endif
894
Paul Sokolovskyd7da2db2017-05-03 01:47:08 +0300895// Whether to provide "uio.resource_stream()" function with
896// the semantics of CPython's pkg_resources.resource_stream()
897// (allows to access resources in frozen packages).
898#ifndef MICROPY_PY_IO_RESOURCE_STREAM
899#define MICROPY_PY_IO_RESOURCE_STREAM (0)
900#endif
901
Damien Georgeee3fd462014-05-24 23:03:12 +0100902// Whether to provide "io.FileIO" class
903#ifndef MICROPY_PY_IO_FILEIO
904#define MICROPY_PY_IO_FILEIO (0)
905#endif
906
907// Whether to provide "io.BytesIO" class
908#ifndef MICROPY_PY_IO_BYTESIO
909#define MICROPY_PY_IO_BYTESIO (1)
910#endif
911
Paul Sokolovsky5d93dfb2016-03-25 01:10:49 +0200912// Whether to provide "io.BufferedWriter" class
913#ifndef MICROPY_PY_IO_BUFFEREDWRITER
914#define MICROPY_PY_IO_BUFFEREDWRITER (0)
915#endif
916
Damien Georgeee3fd462014-05-24 23:03:12 +0100917// Whether to provide "struct" module
918#ifndef MICROPY_PY_STRUCT
919#define MICROPY_PY_STRUCT (1)
920#endif
921
922// Whether to provide "sys" module
923#ifndef MICROPY_PY_SYS
924#define MICROPY_PY_SYS (1)
925#endif
926
Paul Sokolovsky4e0eeeb2014-07-03 16:50:11 +0300927// Whether to provide "sys.maxsize" constant
928#ifndef MICROPY_PY_SYS_MAXSIZE
929#define MICROPY_PY_SYS_MAXSIZE (0)
930#endif
931
Paul Sokolovsky1a1d11f2015-12-05 00:09:10 +0200932// Whether to provide "sys.modules" dictionary
933#ifndef MICROPY_PY_SYS_MODULES
934#define MICROPY_PY_SYS_MODULES (1)
935#endif
936
Paul Sokolovsky8b85d142015-04-25 03:17:41 +0300937// Whether to provide "sys.exc_info" function
938// Avoid enabling this, this function is Python2 heritage
939#ifndef MICROPY_PY_SYS_EXC_INFO
940#define MICROPY_PY_SYS_EXC_INFO (0)
941#endif
942
Damien Georgeee3fd462014-05-24 23:03:12 +0100943// Whether to provide "sys.exit" function
944#ifndef MICROPY_PY_SYS_EXIT
Paul Sokolovsky403c9302016-12-14 21:10:22 +0300945#define MICROPY_PY_SYS_EXIT (1)
Damien Georgeee3fd462014-05-24 23:03:12 +0100946#endif
947
948// Whether to provide sys.{stdin,stdout,stderr} objects
949#ifndef MICROPY_PY_SYS_STDFILES
950#define MICROPY_PY_SYS_STDFILES (0)
Damien George3bb8bd82014-04-14 21:20:30 +0100951#endif
952
Damien George3c4b5d42015-05-13 23:49:21 +0100953// Whether to provide sys.{stdin,stdout,stderr}.buffer object
954// This is implemented per-port
955#ifndef MICROPY_PY_SYS_STDIO_BUFFER
956#define MICROPY_PY_SYS_STDIO_BUFFER (0)
957#endif
Paul Sokolovsky82158472014-06-28 03:03:47 +0300958
Damien George596a3fe2016-05-10 10:54:25 +0100959// Whether to provide "uerrno" module
960#ifndef MICROPY_PY_UERRNO
961#define MICROPY_PY_UERRNO (0)
962#endif
963
Damien Georgef5634062017-02-22 12:53:42 +1100964// Whether to provide the uerrno.errorcode dict
965#ifndef MICROPY_PY_UERRNO_ERRORCODE
966#define MICROPY_PY_UERRNO_ERRORCODE (1)
967#endif
968
Paul Sokolovsky8f5bc3f2016-11-20 23:49:45 +0300969// Whether to provide "uselect" module (baremetal implementation)
970#ifndef MICROPY_PY_USELECT
971#define MICROPY_PY_USELECT (0)
972#endif
973
Paul Sokolovskya9728442016-10-14 20:13:02 +0300974// Whether to provide "utime" module functions implementation
975// in terms of mp_hal_* functions.
976#ifndef MICROPY_PY_UTIME_MP_HAL
977#define MICROPY_PY_UTIME_MP_HAL (0)
978#endif
979
Paul Sokolovsky76146b32016-10-30 03:02:07 +0300980// Period of values returned by utime.ticks_ms(), ticks_us(), ticks_cpu()
981// functions. Should be power of two. All functions above use the same
982// period, so if underlying hardware/API has different periods, the
983// minimum of them should be used. The value below is the maximum value
984// this parameter can take (corresponding to 30 bit tick values on 32-bit
985// system).
986#ifndef MICROPY_PY_UTIME_TICKS_PERIOD
987#define MICROPY_PY_UTIME_TICKS_PERIOD (MP_SMALL_INT_POSITIVE_MASK + 1)
988#endif
989
Damien George27cc0772016-04-22 22:52:33 +0000990// Whether to provide "_thread" module
991#ifndef MICROPY_PY_THREAD
992#define MICROPY_PY_THREAD (0)
993#endif
994
Damien George4cec63a2016-05-26 10:42:53 +0000995// Whether to make the VM/runtime thread-safe using a global lock
996// If not enabled then thread safety must be provided at the Python level
997#ifndef MICROPY_PY_THREAD_GIL
998#define MICROPY_PY_THREAD_GIL (MICROPY_PY_THREAD)
999#endif
1000
Damien Georgef6c22a02017-02-06 10:50:43 +11001001// Number of VM jump-loops to do before releasing the GIL.
1002// Set this to 0 to disable the divisor.
1003#ifndef MICROPY_PY_THREAD_GIL_VM_DIVISOR
1004#define MICROPY_PY_THREAD_GIL_VM_DIVISOR (32)
1005#endif
1006
Paul Sokolovsky82158472014-06-28 03:03:47 +03001007// Extended modules
Paul Sokolovsky510296f2014-08-08 22:51:40 +03001008
Paul Sokolovsky82158472014-06-28 03:03:47 +03001009#ifndef MICROPY_PY_UCTYPES
1010#define MICROPY_PY_UCTYPES (0)
1011#endif
1012
Paul Sokolovsky34162872014-10-12 08:16:34 -07001013#ifndef MICROPY_PY_UZLIB
1014#define MICROPY_PY_UZLIB (0)
1015#endif
1016
Damien George612045f2014-09-17 22:56:34 +01001017#ifndef MICROPY_PY_UJSON
1018#define MICROPY_PY_UJSON (0)
1019#endif
1020
Paul Sokolovskyc71e0452014-09-12 18:48:07 +03001021#ifndef MICROPY_PY_URE
1022#define MICROPY_PY_URE (0)
1023#endif
1024
Damien Georgef5d69792014-10-22 17:37:18 +00001025#ifndef MICROPY_PY_UHEAPQ
1026#define MICROPY_PY_UHEAPQ (0)
1027#endif
1028
Paul Sokolovskyd02f6a92016-12-22 00:29:32 +03001029// Optimized heap queue for relative timestamps
1030#ifndef MICROPY_PY_UTIMEQ
1031#define MICROPY_PY_UTIMEQ (0)
1032#endif
1033
Paul Sokolovskyf4b19c82014-11-22 01:19:13 +02001034#ifndef MICROPY_PY_UHASHLIB
1035#define MICROPY_PY_UHASHLIB (0)
1036#endif
1037
Paul Sokolovskybfdc2052014-11-29 06:19:30 +02001038#ifndef MICROPY_PY_UBINASCII
1039#define MICROPY_PY_UBINASCII (0)
1040#endif
1041
Paul Sokolovskyc4283672016-08-24 18:28:43 +03001042// Depends on MICROPY_PY_UZLIB
1043#ifndef MICROPY_PY_UBINASCII_CRC32
1044#define MICROPY_PY_UBINASCII_CRC32 (0)
1045#endif
1046
Paul Sokolovskya58a91e2016-01-17 12:10:28 +02001047#ifndef MICROPY_PY_URANDOM
1048#define MICROPY_PY_URANDOM (0)
1049#endif
1050
Damien Georgea53af6c2016-01-22 16:19:32 +00001051// Whether to include: randrange, randint, choice, random, uniform
1052#ifndef MICROPY_PY_URANDOM_EXTRA_FUNCS
1053#define MICROPY_PY_URANDOM_EXTRA_FUNCS (0)
1054#endif
1055
Paul Sokolovsky01162182015-05-03 20:25:40 +03001056#ifndef MICROPY_PY_MACHINE
1057#define MICROPY_PY_MACHINE (0)
1058#endif
1059
Damien George33168082016-05-31 14:25:19 +01001060// Whether to include: time_pulse_us
1061#ifndef MICROPY_PY_MACHINE_PULSE
1062#define MICROPY_PY_MACHINE_PULSE (0)
1063#endif
1064
Damien Georged0837122016-04-12 13:42:35 +01001065#ifndef MICROPY_PY_MACHINE_I2C
1066#define MICROPY_PY_MACHINE_I2C (0)
1067#endif
1068
Damien George0823c1b2016-09-01 15:07:20 +10001069#ifndef MICROPY_PY_MACHINE_SPI
1070#define MICROPY_PY_MACHINE_SPI (0)
1071#endif
1072
Paul Sokolovskyaaa88672015-10-06 18:10:00 +03001073#ifndef MICROPY_PY_USSL
1074#define MICROPY_PY_USSL (0)
1075#endif
1076
Paul Sokolovsky24342dd2016-03-24 19:14:12 +02001077#ifndef MICROPY_PY_WEBSOCKET
1078#define MICROPY_PY_WEBSOCKET (0)
1079#endif
1080
Damien George53ad6812016-04-08 11:08:37 +01001081#ifndef MICROPY_PY_FRAMEBUF
1082#define MICROPY_PY_FRAMEBUF (0)
1083#endif
1084
Paul Sokolovsky737bd9c2016-07-02 14:57:42 +03001085#ifndef MICROPY_PY_BTREE
1086#define MICROPY_PY_BTREE (0)
1087#endif
1088
Damien George58ebde42014-05-21 20:32:59 +01001089/*****************************************************************************/
1090/* Hooks for a port to add builtins */
1091
Damien Georgecaac5422014-03-25 14:18:18 +00001092// Additional builtin function definitions - see builtintables.c:builtin_object_table for format.
Damien George58ebde42014-05-21 20:32:59 +01001093#ifndef MICROPY_PORT_BUILTINS
1094#define MICROPY_PORT_BUILTINS
Paul Sokolovsky910843e2014-02-14 12:02:34 +02001095#endif
Damien Georgecaac5422014-03-25 14:18:18 +00001096
1097// Additional builtin module definitions - see builtintables.c:builtin_module_table for format.
Damien George58ebde42014-05-21 20:32:59 +01001098#ifndef MICROPY_PORT_BUILTIN_MODULES
1099#define MICROPY_PORT_BUILTIN_MODULES
Damien Georgecaac5422014-03-25 14:18:18 +00001100#endif
1101
Damien Georgec14a8162014-10-12 11:46:04 +01001102// Any module weak links - see builtintables.c:mp_builtin_module_weak_links_table.
1103#ifndef MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS
1104#define MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS
1105#endif
1106
Damien George57e99eb2014-04-10 22:42:11 +01001107// Additional constant definitions for the compiler - see compile.c:mp_constants_table.
Damien George58ebde42014-05-21 20:32:59 +01001108#ifndef MICROPY_PORT_CONSTANTS
1109#define MICROPY_PORT_CONSTANTS
Damien George57e99eb2014-04-10 22:42:11 +01001110#endif
1111
Damien Georgeb4b10fd2015-01-01 23:30:53 +00001112// Any root pointers for GC scanning - see mpstate.c
1113#ifndef MICROPY_PORT_ROOT_POINTERS
1114#define MICROPY_PORT_ROOT_POINTERS
1115#endif
1116
Damien George136f6752014-01-07 14:54:15 +00001117/*****************************************************************************/
1118/* Miscellaneous settings */
1119
Damien George28631532015-02-08 13:42:00 +00001120// All uPy objects in ROM must be aligned on at least a 4 byte boundary
1121// so that the small-int/qstr/pointer distinction can be made. For machines
1122// that don't do this (eg 16-bit CPU), define the following macro to something
1123// like __attribute__((aligned(4))).
1124#ifndef MICROPY_OBJ_BASE_ALIGNMENT
1125#define MICROPY_OBJ_BASE_ALIGNMENT
1126#endif
1127
Dave Hylands5b7fd202014-07-01 23:46:53 -07001128// On embedded platforms, these will typically enable/disable irqs.
1129#ifndef MICROPY_BEGIN_ATOMIC_SECTION
Damien George4859edb2014-10-15 17:33:24 +00001130#define MICROPY_BEGIN_ATOMIC_SECTION() (0)
Dave Hylands5b7fd202014-07-01 23:46:53 -07001131#endif
1132#ifndef MICROPY_END_ATOMIC_SECTION
Damien George4859edb2014-10-15 17:33:24 +00001133#define MICROPY_END_ATOMIC_SECTION(state) (void)(state)
Dave Hylands5b7fd202014-07-01 23:46:53 -07001134#endif
1135
Paul Sokolovskyd5df6cd2014-02-12 18:15:40 +02001136// Allow to override static modifier for global objects, e.g. to use with
1137// object code analysis tools which don't support static symbols.
1138#ifndef STATIC
1139#define STATIC static
1140#endif
1141
Damien George4c307bf2017-04-01 11:39:38 +11001142// Number of bytes in a word
1143#ifndef BYTES_PER_WORD
1144#define BYTES_PER_WORD (sizeof(mp_uint_t))
1145#endif
1146
Paul Sokolovskyfc5aac82014-01-12 16:10:19 +02001147#define BITS_PER_BYTE (8)
1148#define BITS_PER_WORD (BITS_PER_BYTE * BYTES_PER_WORD)
Damien George40f3c022014-07-03 13:25:24 +01001149// mp_int_t value with most significant bit set
1150#define WORD_MSBIT_HIGH (((mp_uint_t)1) << (BYTES_PER_WORD * 8 - 1))
Paul Sokolovskyfc5aac82014-01-12 16:10:19 +02001151
Damien Georgea9bcd512014-10-06 13:44:59 +00001152// Make sure both MP_ENDIANNESS_LITTLE and MP_ENDIANNESS_BIG are
1153// defined and that they are the opposite of each other.
1154#if defined(MP_ENDIANNESS_LITTLE)
1155#define MP_ENDIANNESS_BIG (!MP_ENDIANNESS_LITTLE)
1156#elif defined(MP_ENDIANNESS_BIG)
1157#define MP_ENDIANNESS_LITTLE (!MP_ENDIANNESS_BIG)
1158#else
1159 // Endiannes not defined by port so try to autodetect it.
1160 #if defined(__BYTE_ORDER__)
1161 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1162 #define MP_ENDIANNESS_LITTLE (1)
1163 #else
1164 #define MP_ENDIANNESS_LITTLE (0)
1165 #endif
Damien Georgef32498f2014-10-06 16:09:31 +00001166 #elif defined(__LITTLE_ENDIAN__) || defined(__LITTLE_ENDIAN) || defined (_LITTLE_ENDIAN)
1167 #define MP_ENDIANNESS_LITTLE (1)
Damien Georgea9bcd512014-10-06 13:44:59 +00001168 #elif defined(__BIG_ENDIAN__) || defined(__BIG_ENDIAN) || defined (_BIG_ENDIAN)
1169 #define MP_ENDIANNESS_LITTLE (0)
1170 #else
Damien George4e4772b2015-05-30 23:12:30 +01001171 #include <endian.h>
1172 #if defined(__BYTE_ORDER)
1173 #if __BYTE_ORDER == __LITTLE_ENDIAN
1174 #define MP_ENDIANNESS_LITTLE (1)
1175 #else
1176 #define MP_ENDIANNESS_LITTLE (0)
1177 #endif
1178 #else
1179 #error endianness not defined and cannot detect it
1180 #endif
Damien Georgea9bcd512014-10-06 13:44:59 +00001181 #endif
1182 #define MP_ENDIANNESS_BIG (!MP_ENDIANNESS_LITTLE)
Andrew Schellercc837372014-04-14 02:39:56 +01001183#endif
Paul Sokolovsky2da81fa2014-04-11 03:44:00 +03001184
Damien George3c658a42014-08-24 16:28:17 +01001185// Make a pointer to RAM callable (eg set lower bit for Thumb code)
1186// (This scheme won't work if we want to mix Thumb and normal ARM code.)
1187#ifndef MICROPY_MAKE_POINTER_CALLABLE
1188#define MICROPY_MAKE_POINTER_CALLABLE(p) (p)
1189#endif
1190
Damien George7f9d1d62015-04-09 23:56:15 +01001191// If these MP_PLAT_*_EXEC macros are overridden then the memory allocated by them
Damien George2127e9a2015-01-14 00:11:09 +00001192// must be somehow reachable for marking by the GC, since the native code
1193// generators store pointers to GC managed memory in the code.
Fabian Vogtb7235b82014-09-03 16:59:33 +02001194#ifndef MP_PLAT_ALLOC_EXEC
Damien George4dea9222015-04-09 15:29:54 +00001195#define MP_PLAT_ALLOC_EXEC(min_size, ptr, size) do { *ptr = m_new(byte, min_size); *size = min_size; } while (0)
Fabian Vogtb7235b82014-09-03 16:59:33 +02001196#endif
1197
1198#ifndef MP_PLAT_FREE_EXEC
1199#define MP_PLAT_FREE_EXEC(ptr, size) m_del(byte, ptr, size)
1200#endif
1201
Damien George7f9d1d62015-04-09 23:56:15 +01001202// This macro is used to do all output (except when MICROPY_PY_IO is defined)
1203#ifndef MP_PLAT_PRINT_STRN
Damien George4300c7d2015-10-15 00:05:55 +01001204#define MP_PLAT_PRINT_STRN(str, len) mp_hal_stdout_tx_strn_cooked(str, len)
Damien George7f9d1d62015-04-09 23:56:15 +01001205#endif
1206
Paul Sokolovsky722e5622014-09-06 19:17:23 +03001207#ifndef MP_SSIZE_MAX
1208#define MP_SSIZE_MAX SSIZE_MAX
1209#endif
1210
Damien George40f3c022014-07-03 13:25:24 +01001211// printf format spec to use for mp_int_t and friends
Damien George136f6752014-01-07 14:54:15 +00001212#ifndef INT_FMT
stijn3baf6b52015-11-20 15:59:06 +01001213#if defined(__LP64__)
Damien George40f3c022014-07-03 13:25:24 +01001214// Archs where mp_int_t == long, long != int
Paul Sokolovskyc90c0f62014-01-04 01:57:00 +02001215#define UINT_FMT "%lu"
1216#define INT_FMT "%ld"
stijn3baf6b52015-11-20 15:59:06 +01001217#elif defined(_WIN64)
stijn0a4eb4d2015-12-18 10:20:33 +01001218#define UINT_FMT "%llu"
1219#define INT_FMT "%lld"
Paul Sokolovskyc90c0f62014-01-04 01:57:00 +02001220#else
Damien George40f3c022014-07-03 13:25:24 +01001221// Archs where mp_int_t == int
Paul Sokolovskyc90c0f62014-01-04 01:57:00 +02001222#define UINT_FMT "%u"
1223#define INT_FMT "%d"
1224#endif
1225#endif //INT_FMT
Paul Sokolovskye9085912014-04-30 05:35:18 +03001226
1227// Modifier for function which doesn't return
stijn01d6be42014-05-05 12:18:27 +02001228#ifndef NORETURN
Paul Sokolovskye9085912014-04-30 05:35:18 +03001229#define NORETURN __attribute__((noreturn))
stijn01d6be42014-05-05 12:18:27 +02001230#endif
mux5c8db482014-06-21 17:24:55 +02001231
1232// Modifier for weak functions
1233#ifndef MP_WEAK
1234#define MP_WEAK __attribute__((weak))
1235#endif
Paul Sokolovsky361909e2014-12-29 00:51:06 +02001236
Paul Sokolovsky0f5bf1a2016-06-15 23:52:00 +03001237// Modifier for functions which should be never inlined
1238#ifndef MP_NOINLINE
1239#define MP_NOINLINE __attribute__((noinline))
1240#endif
1241
Paul Sokolovsky1bc29112016-08-07 22:36:05 +03001242// Modifier for functions which should be always inlined
1243#ifndef MP_ALWAYSINLINE
1244#define MP_ALWAYSINLINE __attribute__((always_inline))
1245#endif
1246
Paul Sokolovsky361909e2014-12-29 00:51:06 +02001247// Condition is likely to be true, to help branch prediction
1248#ifndef MP_LIKELY
1249#define MP_LIKELY(x) __builtin_expect((x), 1)
1250#endif
1251
1252// Condition is likely to be false, to help branch prediction
1253#ifndef MP_UNLIKELY
1254#define MP_UNLIKELY(x) __builtin_expect((x), 0)
1255#endif
Damien George9ddbe292014-12-29 01:02:19 +00001256
1257#endif // __MICROPY_INCLUDED_PY_MPCONFIG_H__