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Change allocateHeaps logic to properly handle appmemtype 5

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TuxSH 2020-05-09 02:27:03 +01:00 committed by fincs
parent 1389fcdfcd
commit 65ff0a1fcc
1 changed files with 17 additions and 8 deletions
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25
libctru/source/system/allocateHeaps.c
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@ -3,6 +3,8 @@
#include <3ds/env.h>
#include <3ds/os.h>
#define DEFAULT_LINEAR_HEAP_SIZE (32 << 20) // 32MB
extern char* fake_heap_start;
extern char* fake_heap_end;
@ -10,17 +12,24 @@ u32 __ctru_heap;
u32 __ctru_linear_heap;
__attribute__((weak)) u32 __ctru_heap_size = 0;
__attribute__((weak)) u32 __ctru_linear_heap_size = 32*1024*1024;
__attribute__((weak)) u32 __ctru_linear_heap_size = 0;
void __attribute__((weak)) __system_allocateHeaps(void) {
u32 tmp=0;
u32 tmp = 0;
u32 remaining = osGetMemRegionFree(MEMREGION_APPLICATION) &~ 0xFFF;
if (!__ctru_heap_size) {
// Automatically allocate all remaining free memory, aligning to page size.
__ctru_heap_size = osGetMemRegionFree(MEMREGION_APPLICATION) &~ 0xFFF;
if (__ctru_heap_size <= __ctru_linear_heap_size)
svcBreak(USERBREAK_PANIC);
__ctru_heap_size -= __ctru_linear_heap_size;
if (__ctru_heap_size + __ctru_linear_heap_size > remaining)
svcBreak(USERBREAK_PANIC);
if (__ctru_heap_size == 0 && __ctru_linear_heap_size == 0) {
// By default, automatically allocate all remaining free memory, aligning to page size.
__ctru_linear_heap_size = (remaining / 2) & ~0xFFF;
__ctru_linear_heap_size = __ctru_linear_heap_size <= DEFAULT_LINEAR_HEAP_SIZE ? __ctru_linear_heap_size : DEFAULT_LINEAR_HEAP_SIZE;
__ctru_heap_size = remaining - __ctru_linear_heap_size;
} else if (__ctru_heap_size == 0) {
__ctru_heap_size = remaining - __ctru_linear_heap_size;
} else if (__ctru_linear_heap_size == 0) {
__ctru_linear_heap_size = remaining - __ctru_heap_size;
}
// Allocate the application heap