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MMU: Move the lookup tables to the heap in 64-bit builds and free them on exit in 32-bit builds, prevents memory leaks.

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OBattler
2025-06-25 19:35:59 +02:00
parent 609a7e4549
commit 495ee9b931
3 changed files with 46 additions and 0 deletions
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26
src/mem/mem.c
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@@ -67,7 +67,9 @@ mem_mapping_t bios_mapping;
mem_mapping_t bios_high_mapping;
page_t *pages; /* RAM page table */
#if (!(defined __amd64__ || defined _M_X64 || defined __aarch64__ || defined _M_ARM64))
page_t **page_lookup; /* pagetable lookup */
#endif
uint32_t pages_sz; /* #pages in table */
uint8_t *ram; /* the virtual RAM */
@@ -85,12 +87,23 @@ uint8_t *pccache2;
int readlnext;
int readlookup[256];
#if (!(defined __amd64__ || defined _M_X64 || defined __aarch64__ || defined _M_ARM64))
uintptr_t *readlookup2;
#endif
uintptr_t old_rl2;
uint8_t uncached = 0;
int writelnext;
int writelookup[256];
#if (!(defined __amd64__ || defined _M_X64 || defined __aarch64__ || defined _M_ARM64))
uintptr_t *writelookup2;
#endif
#if (defined __amd64__ || defined _M_X64 || defined __aarch64__ || defined _M_ARM64)
/* The lookup tables. */
page_t *page_lookup[1048576] = { 0 };
uintptr_t readlookup2[1048576] = { 0 };
uintptr_t writelookup2[1048576] = { 0 };
#endif
uint32_t mem_logical_addr;
@@ -2987,12 +3000,25 @@ mem_init(void)
ram2 = NULL;
pages = NULL;
#if (!(defined __amd64__ || defined _M_X64 || defined __aarch64__ || defined _M_ARM64))
/* Allocate the lookup tables. */
page_lookup = (page_t **) malloc((1 << 20) * sizeof(page_t *));
readlookup2 = malloc((1 << 20) * sizeof(uintptr_t));
writelookup2 = malloc((1 << 20) * sizeof(uintptr_t));
#endif
}
#if (!(defined __amd64__ || defined _M_X64 || defined __aarch64__ || defined _M_ARM64))
void
mem_free(void)
{
free(page_lookup);
free(readlookup2);
free(writelookup2);
}
#endif
static void
umc_page_recalc(uint32_t c, uint32_t phys, int set)
{