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stm: Fix gccollect ram range.

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This commit is contained in:
Damien George 2014-01-29 19:21:17 +00:00
parent 0347fbd2d5
commit 01fa4a9164
3 changed files with 15 additions and 5 deletions
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4
stm/gccollect.c
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@ -13,10 +13,10 @@ void gc_helper_get_regs_and_clean_stack(machine_uint_t *regs, machine_uint_t hea
void gc_collect(void) {
uint32_t start = sys_tick_counter;
gc_collect_start();
gc_collect_root((void**)&_ram_start, (&_heap_start - &_ram_start) / 4);
gc_collect_root((void**)&_ram_start, ((uint32_t)&_heap_start - (uint32_t)&_ram_start) / sizeof(uint32_t));
machine_uint_t regs[10];
gc_helper_get_regs_and_clean_stack(regs, (machine_uint_t)&_heap_end);
gc_collect_root((void**)&_heap_end, (&_ram_end - &_heap_end) / 4); // will trace regs since they now live in this function on the stack
gc_collect_root((void**)&_heap_end, ((uint32_t)&_ram_end - (uint32_t)&_heap_end) / sizeof(uint32_t)); // will trace regs since they now live in this function on the stack
gc_collect_end();
uint32_t ticks = sys_tick_counter - start; // TODO implement a function that does this properly

11
stm/main.c
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@ -174,15 +174,24 @@ static mp_obj_t pyb_info(void) {
extern void *_ebss;
extern void *_estack;
extern void *_etext;
printf("_etext=%p\n", &_etext);
printf("_sidata=%p\n", &_sidata);
printf("_sdata=%p\n", &_sdata);
printf("_edata=%p\n", &_edata);
printf("_sbss=%p\n", &_sbss);
printf("_ebss=%p\n", &_ebss);
printf("_estack=%p\n", &_estack);
printf("_etext=%p\n", &_etext);
printf("_ram_start=%p\n", &_ram_start);
printf("_heap_start=%p\n", &_heap_start);
printf("_heap_end=%p\n", &_heap_end);
printf("_ram_end=%p\n", &_ram_end);
}
// qstr info
{
uint n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
printf("qstr:\n n_pool=%u\n n_qstr=%u\n n_str_data_bytes=%u\n n_total_bytes=%u\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
}
// GC info

5
stm/stm32f405.ld
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@ -19,8 +19,9 @@ _minimum_heap_size = 16K;
/* top end of the stack */
_estack = ORIGIN(RAM) + LENGTH(RAM);
_ram_end = 0x20020000;
_heap_end = 0x2001c000;
/* RAM extents for the garbage collector */
_ram_end = ORIGIN(RAM) + LENGTH(RAM);
_heap_end = 0x2001c000; /* tunable */
/* define output sections */
SECTIONS