50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "stack.h"
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#include "py/mpconfig.h"
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#include "py/runtime.h"
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#include "supervisor/cpu.h"
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#include "supervisor/port.h"
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#include "supervisor/shared/safe_mode.h"
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void stack_init(void) {
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uint32_t *stack_limit = port_stack_get_limit();
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*stack_limit = STACK_CANARY_VALUE;
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}
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inline bool stack_ok(void) {
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uint32_t *stack_limit = port_stack_get_limit();
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return *stack_limit == STACK_CANARY_VALUE;
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}
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inline void assert_heap_ok(void) {
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if (!stack_ok()) {
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reset_into_safe_mode(SAFE_MODE_STACK_OVERFLOW);
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}
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}
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