libs/PowerPC_EABI_Support/Runtime/Src/GCN_mem_alloc.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

/**
 * GCN_mem_alloc.c
 * Description:
 */

#include <os.h>

inline static void InitDefaultHeap(void) {
	void* arenaLo;
	void* arenaHi;

	OSReport("GCN_Mem_Alloc.c : InitDefaultHeap. No Heap Available\n");
	OSReport("Metrowerks CW runtime library initializing default heap\n");

	arenaLo = OSGetArenaLo();
	arenaHi = OSGetArenaHi();

	arenaLo = OSInitAlloc(arenaLo, arenaHi, 1);
	OSSetArenaLo(arenaLo);

	arenaLo = (void*)OSRoundUp32B(arenaLo);
	arenaHi = (void*)OSRoundDown32B(arenaHi);

	OSSetCurrentHeap(OSCreateHeap(arenaLo, arenaHi));
	OSSetArenaLo(arenaLo = arenaHi);
}

void __sys_free(void* p) {
    if (__OSCurrHeap == -1) {
        InitDefaultHeap();
    }

    OSFreeToHeap(__OSCurrHeap, p);
}