diff options
| -rw-r--r-- | py/gc.c | 8 |
1 files changed, 5 insertions, 3 deletions
@@ -113,7 +113,6 @@ STATIC machine_uint_t gc_lock_depth; void gc_init(void *start, void *end) { // align end pointer on block boundary end = (void*)((machine_uint_t)end & (~(BYTES_PER_BLOCK - 1))); - DEBUG_printf("Initializing GC heap: %p..%p = " UINT_FMT " bytes\n", start, end, end - start); // calculate parameters for GC (T=total, A=alloc table, F=finaliser table, P=pool; all in bytes): // T = A + F + P @@ -121,6 +120,7 @@ void gc_init(void *start, void *end) { // P = A * BLOCKS_PER_ATB * BYTES_PER_BLOCK // => T = A * (1 + BLOCKS_PER_ATB / BLOCKS_PER_FTB + BLOCKS_PER_ATB * BYTES_PER_BLOCK) machine_uint_t total_byte_len = (byte*)end - (byte*)start; + DEBUG_printf("Initializing GC heap: %p..%p = " UINT_FMT " bytes\n", start, end, total_byte_len); #if MICROPY_ENABLE_FINALISER gc_alloc_table_byte_len = total_byte_len * BITS_PER_BYTE / (BITS_PER_BYTE + BITS_PER_BYTE * BLOCKS_PER_ATB / BLOCKS_PER_FTB + BITS_PER_BYTE * BLOCKS_PER_ATB * BYTES_PER_BLOCK); #else @@ -268,6 +268,7 @@ STATIC void gc_sweep(void) { case AT_TAIL: if (free_tail) { + DEBUG_printf("gc_sweep(%p)\n",PTR_FROM_BLOCK(block)); ATB_ANY_TO_FREE(block); } break; @@ -347,7 +348,6 @@ void gc_info(gc_info_t *info) { void *gc_alloc(machine_uint_t n_bytes, bool has_finaliser) { machine_uint_t n_blocks = ((n_bytes + BYTES_PER_BLOCK - 1) & (~(BYTES_PER_BLOCK - 1))) / BYTES_PER_BLOCK; - DEBUG_printf("gc_alloc(" UINT_FMT " bytes -> " UINT_FMT " blocks)\n", n_bytes, n_blocks); // check if GC is locked if (gc_lock_depth > 0) { @@ -401,6 +401,7 @@ found: // get pointer to first block void *ret_ptr = (void*)(gc_pool_start + start_block * WORDS_PER_BLOCK); + DEBUG_printf("gc_alloc(" UINT_FMT " bytes -> " UINT_FMT " blocks ptr %p)\n", n_bytes, n_blocks, ret_ptr); // zero out the additional bytes of the newly allocated blocks // This is needed because the blocks may have previously held pointers @@ -439,6 +440,7 @@ void gc_free(void *ptr_in) { } machine_uint_t ptr = (machine_uint_t)ptr_in; + DEBUG_printf("gc_free(%p)\n", ptr); if (VERIFY_PTR(ptr)) { machine_uint_t block = BLOCK_FROM_PTR(ptr); @@ -590,7 +592,7 @@ void *gc_realloc(void *ptr_in, machine_uint_t n_bytes) { return NULL; } - DEBUG_printf("gc_realloc: allocating new block\n"); + DEBUG_printf("gc_realloc(%p -> %p)\n", ptr_in, ptr_out); memcpy(ptr_out, ptr_in, n_blocks * BYTES_PER_BLOCK); gc_free(ptr_in); return ptr_out; |