d99b05282d
A big change. Micro Python objects are allocated as individual structs with the first element being a pointer to the type information (which is itself an object). This scheme follows CPython. Much more flexible, not necessarily slower, uses same heap memory, and can allocate objects statically. Also change name prefix, from py_ to mp_ (mp for Micro Python).
57 lines
1.0 KiB
C
57 lines
1.0 KiB
C
#include <stdint.h>
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#include "std.h"
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#include "mpconfig.h"
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#include "gc.h"
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#if 0
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static uint32_t mem = 0;
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void *malloc(size_t n) {
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if (mem == 0) {
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extern uint32_t _heap_start;
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mem = (uint32_t)&_heap_start; // need to use big ram block so we can execute code from it (is it true that we can't execute from CCM?)
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}
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void *ptr = (void*)mem;
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mem = (mem + n + 3) & (~3);
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if (mem > 0x20000000 + 0x18000) {
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void __fatal_error(const char*);
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__fatal_error("out of memory");
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}
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return ptr;
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}
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void free(void *ptr) {
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}
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void *realloc(void *ptr, size_t n) {
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return malloc(n);
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}
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#endif
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void *calloc(size_t sz, size_t n) {
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char *ptr = malloc(sz * n);
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for (int i = 0; i < sz * n; i++) {
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ptr[i] = 0;
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}
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return ptr;
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}
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void *malloc(size_t n) {
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return gc_alloc(n);
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}
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void free(void *ptr) {
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gc_free(ptr);
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}
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void *realloc(void *ptr, size_t n) {
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return gc_realloc(ptr, n);
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}
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void __assert_func(void) {
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printf("\nASSERT FAIL!");
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for (;;) {
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}
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}
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