7f0cc9e7b4
This port is meant to grow to encompass all existing boards. For now, it is a port while we transition over. It is named `zephyr-cp` to differentiate it from the MicroPython `zephyr` port. They are separate implementations.
36 lines
888 B
C
36 lines
888 B
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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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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// Zephyr has a stack canary of its own.
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#ifndef __ZEPHYR__
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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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#endif
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}
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inline bool stack_ok(void) {
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#ifndef __ZEPHYR__
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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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#endif
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}
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inline void assert_heap_ok(void) {
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#ifndef __ZEPHYR__
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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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#endif
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}
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