53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
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/*
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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) 2017 Dan Halbert
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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 <stdint.h>
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#include "py/mpstate.h"
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#include "py/stackctrl.h"
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#include "shared-bindings/ustack/__init__.h"
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#if MICROPY_MAX_STACK_USAGE
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uint32_t shared_module_ustack_max_stack_usage(void) {
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// Start at stack limit and move up.
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// Untouched stack was filled with a sentinel value.
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// Stop at first non-sentinel byte.
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char* p = MP_STATE_THREAD(stack_bottom);
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while (*p++ == MP_MAX_STACK_USAGE_SENTINEL_BYTE) { }
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return MP_STATE_THREAD(stack_top) - p;
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}
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#endif
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uint32_t shared_module_ustack_stack_size() {
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return MP_STATE_THREAD(stack_limit);
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}
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uint32_t shared_module_ustack_stack_usage() {
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return mp_stack_usage();
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}
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