kopia lustrzana https://github.com/micropython/micropython
88 wiersze
2.8 KiB
C
88 wiersze
2.8 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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* Development of the code in this file was sponsored by Microbric Pty Ltd
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014 Damien P. George
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* Copyright (c) 2017 Pycom Limited
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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 <stdio.h>
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#include "py/mpconfig.h"
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#include "py/mpstate.h"
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#include "py/gc.h"
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#include "py/mpthread.h"
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#include "gccollect.h"
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#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
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#include "xtensa/hal.h"
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// The level argument must be volatile to force the compiler to emit code that
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// will call this function recursively, to nest the C stack.
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static void gc_collect_inner(volatile unsigned int level) {
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if (level < XCHAL_NUM_AREGS / 8) {
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// Go deeper on the stack to spill more registers from the register window.
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gc_collect_inner(level + 1);
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} else {
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// Deep enough so that all registers are on the C stack, now trace the stack.
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volatile uint32_t sp = (uint32_t)esp_cpu_get_sp();
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gc_collect_root((void **)sp, ((mp_uint_t)MP_STATE_THREAD(stack_top) - sp) / sizeof(uint32_t));
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}
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}
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void gc_collect(void) {
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gc_collect_start();
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gc_collect_inner(0);
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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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gc_collect_end();
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}
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#elif CONFIG_IDF_TARGET_ESP32C3
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#include "shared/runtime/gchelper.h"
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void gc_collect(void) {
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gc_collect_start();
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gc_helper_collect_regs_and_stack();
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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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gc_collect_end();
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}
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#endif
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#if MICROPY_GC_SPLIT_HEAP_AUTO
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// The largest new region that is available to become Python heap is the largest
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// free block in the ESP-IDF system heap.
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size_t gc_get_max_new_split(void) {
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return heap_caps_get_largest_free_block(MALLOC_CAP_DEFAULT);
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}
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#endif
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