Commit 723a6ed3 authored by Paul Sokolovsky's avatar Paul Sokolovsky
Browse files

More GC debugging improvements.

parent 20632e4d
......@@ -240,7 +240,7 @@ void gc_info(gc_info_t *info) {
void *gc_alloc(machine_uint_t n_bytes) {
machine_uint_t n_blocks = ((n_bytes + BYTES_PER_BLOCK - 1) & (~(BYTES_PER_BLOCK - 1))) / BYTES_PER_BLOCK;
//printf("gc_alloc(%u bytes -> %u blocks)\n", n_bytes, n_blocks);
DEBUG_printf("gc_alloc(%u bytes -> %u blocks)\n", n_bytes, n_blocks);
// check for 0 allocation
if (n_blocks == 0) {
......@@ -267,6 +267,7 @@ void *gc_alloc(machine_uint_t n_bytes) {
if (collected) {
return NULL;
}
DEBUG_printf("gc_alloc(" UINT_FMT "): no free mem, triggering GC\n", n_bytes);
gc_collect();
collected = 1;
}
......@@ -341,6 +342,14 @@ void *gc_realloc(void *ptr, machine_uint_t n_bytes) {
}
}
void gc_dump_info() {
gc_info_t info;
gc_info(&info);
printf("GC: total: " UINT_FMT ", used: " UINT_FMT ", free: " UINT_FMT "\n", info.total, info.used, info.free);
printf(" No. of 1-blocks: " UINT_FMT ", 2-blocks: " UINT_FMT ", max blk sz: " UINT_FMT "\n",
info.num_1block, info.num_2block, info.max_block);
}
#if DEBUG_PRINT
static void gc_dump_at(void) {
for (machine_uint_t bl = 0; bl < gc_alloc_table_byte_len * BLOCKS_PER_ATB; bl++) {
......
......@@ -48,6 +48,8 @@ void gc_helper_get_regs(regs_t arr) {
#endif
void gc_collect(void) {
//gc_dump_info();
gc_collect_start();
// this traces .data and .bss sections
extern char __bss_start, _end;
......@@ -59,14 +61,8 @@ void gc_collect(void) {
gc_collect_root((void**)&regs, ((uint32_t)stack_top - (uint32_t)&regs) / sizeof(uint32_t));
gc_collect_end();
if (0) {
// print GC info
gc_info_t info;
gc_info(&info);
printf("GC: total: " UINT_FMT ", used: " UINT_FMT ", free: " UINT_FMT "\n", info.total, info.used, info.free);
printf(" No. of 1-blocks: " UINT_FMT ", 2-blocks: " UINT_FMT ", max blk sz: " UINT_FMT "\n",
info.num_1block, info.num_2block, info.max_block);
}
//printf("-----\n");
//gc_dump_info();
}
#endif //MICROPY_ENABLE_GC
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