1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Paul Sokolovsky
* Copyright (c) 2024 Angus Gratton
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_PY_CSTACK_H
#define MICROPY_INCLUDED_PY_CSTACK_H
#include "py/mpstate.h"
// Both init functions below accept the full stack size. Set the
// MICROPY_STACK_CHECK_MARGIN to the number of bytes subtracted to account
// for stack usage between checks.
void mp_cstack_init_with_sp_here(size_t stack_size);
inline static void mp_cstack_init_with_top(void *top, size_t stack_size) {
MP_STATE_THREAD(stack_top) = (char *)top;
#if MICROPY_STACK_CHECK
assert(stack_size > MICROPY_STACK_CHECK_MARGIN); // Should be enforced by port
MP_STATE_THREAD(stack_limit) = stack_size - MICROPY_STACK_CHECK_MARGIN;
#else
(void)stack_size;
#endif
}
mp_uint_t mp_cstack_usage(void);
#if MICROPY_STACK_CHECK
void mp_cstack_check(void);
#else
inline static void mp_cstack_check(void) {
// No-op when stack checking is disabled
}
#endif
#endif // MICROPY_INCLUDED_PY_CSTACK_H
|
