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94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2013-2024 OpenMV, LLC.
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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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* Common MicroPython utility functions.
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*/
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#include <stdio.h>
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#include "py/runtime.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#include "py/objstr.h"
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#include "py/mpthread.h"
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#include "py/gc.h"
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#include "py/stackctrl.h"
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#include "shared/runtime/gchelper.h"
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#include "shared/runtime/softtimer.h"
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#include "shared/runtime/pyexec.h"
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#include "omv_boardconfig.h"
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#include "usbdbg.h"
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#include "mp_utils.h"
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void __attribute__((weak)) gc_collect(void) {
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// start the GC
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gc_collect_start();
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// trace the stack and registers
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gc_helper_collect_regs_and_stack();
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// trace root pointers from any threads
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#if MICROPY_PY_THREAD
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mp_thread_gc_others();
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#endif
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// trace soft timer nodes
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#ifndef MP_PORT_NO_SOFTTIMER
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soft_timer_gc_mark_all();
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#endif
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// end the GC
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gc_collect_end();
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}
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void mp_init_gc_stack(void *sstack, void *estack, void *heap_start, void *heap_end, size_t stack_limit) {
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// Initialize the stack.
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mp_stack_set_top(estack);
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// Set stack limit
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// Stack limit should be less than real stack size, so we have a
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// chance to recover from limit hit. (Limit is measured in bytes)
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mp_stack_set_limit(estack - sstack - stack_limit);
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#if MICROPY_ENABLE_PYSTACK
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static mp_obj_t pystack[384];
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mp_pystack_init(pystack, &pystack[384]);
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#endif
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// Initialize gc memory.
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gc_init(heap_start, heap_end);
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// Add GC blocks (if enabled).
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#ifdef OMV_GC_BLOCK1_MEMORY
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typedef struct {
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uint8_t *addr;
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uint32_t size;
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} gc_blocks_table_t;
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extern const gc_blocks_table_t _gc_blocks_table_start;
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extern const gc_blocks_table_t _gc_blocks_table_end;
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for (gc_blocks_table_t const *block = &_gc_blocks_table_start; block < &_gc_blocks_table_end; block++) {
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gc_add(block->addr, block->addr + block->size);
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}
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#endif
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}
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