gc: Keep debug statements at beginning of scope where possible
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bbcea3f62b
commit
def10cecd1
7
py/gc.c
7
py/gc.c
@ -40,7 +40,7 @@
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#if MICROPY_ENABLE_GC
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#if 0 // print debugging info
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#if 1 // print debugging info
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#define DEBUG_PRINT (1)
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#define DEBUG_printf DEBUG_printf
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#else // don't print debugging info
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@ -113,6 +113,7 @@ STATIC machine_uint_t gc_lock_depth;
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void gc_init(void *start, void *end) {
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// align end pointer on block boundary
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end = (void*)((machine_uint_t)end & (~(BYTES_PER_BLOCK - 1)));
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DEBUG_printf("Initializing GC heap: %p..%p = " UINT_FMT " bytes\n", start, end, (byte*)end - (byte*)start);
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// calculate parameters for GC (T=total, A=alloc table, F=finaliser table, P=pool; all in bytes):
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// T = A + F + P
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@ -120,7 +121,6 @@ void gc_init(void *start, void *end) {
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// P = A * BLOCKS_PER_ATB * BYTES_PER_BLOCK
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// => T = A * (1 + BLOCKS_PER_ATB / BLOCKS_PER_FTB + BLOCKS_PER_ATB * BYTES_PER_BLOCK)
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machine_uint_t total_byte_len = (byte*)end - (byte*)start;
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DEBUG_printf("Initializing GC heap: %p..%p = " UINT_FMT " bytes\n", start, end, total_byte_len);
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#if MICROPY_ENABLE_FINALISER
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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);
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#else
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@ -348,6 +348,7 @@ void gc_info(gc_info_t *info) {
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void *gc_alloc(machine_uint_t n_bytes, bool has_finaliser) {
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machine_uint_t n_blocks = ((n_bytes + BYTES_PER_BLOCK - 1) & (~(BYTES_PER_BLOCK - 1))) / BYTES_PER_BLOCK;
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DEBUG_printf("gc_alloc(" UINT_FMT " bytes -> " UINT_FMT " blocks)\n", n_bytes, n_blocks);
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// check if GC is locked
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if (gc_lock_depth > 0) {
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@ -401,7 +402,7 @@ found:
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// get pointer to first block
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void *ret_ptr = (void*)(gc_pool_start + start_block * WORDS_PER_BLOCK);
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DEBUG_printf("gc_alloc(" UINT_FMT " bytes -> " UINT_FMT " blocks ptr %p)\n", n_bytes, n_blocks, ret_ptr);
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DEBUG_printf("gc_alloc(%p)\n", ret_ptr);
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// zero out the additional bytes of the newly allocated blocks
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// This is needed because the blocks may have previously held pointers
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