48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
|
/*
|
||
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
||
|
|
*
|
||
|
|
* The MIT License (MIT)
|
||
|
|
*
|
||
|
|
* Copyright (c) 2013, 2014 Damien P. George
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
* THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include "py/mpstate.h"
|
||
|
|
#include "py/gc.h"
|
||
|
|
#include "lib/utils/gchelper.h"
|
||
|
|
|
||
|
|
#if MICROPY_ENABLE_GC
|
||
|
|
|
||
|
|
// provided by gchelper_*.s
|
||
|
|
uintptr_t gc_helper_get_regs_and_sp(uintptr_t *regs);
|
||
|
|
|
||
|
|
MP_NOINLINE void gc_helper_collect_regs_and_stack(void) {
|
||
|
|
// get the registers and the sp
|
||
|
|
gc_helper_regs_t regs;
|
||
|
|
uintptr_t sp = gc_helper_get_regs_and_sp(regs);
|
||
|
|
|
||
|
|
// trace the stack, including the registers (since they live on the stack in this function)
|
||
|
|
gc_collect_root((void **)sp, ((uint32_t)MP_STATE_THREAD(stack_top) - sp) / sizeof(uint32_t));
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|