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[DYNAREC] Mark existing block as dirty when re-creating a memory block

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This commit is contained in:
ptitSeb 2024-11-17 11:00:28 +01:00
parent 6e8c244b77
commit c4d3d734b1
1 changed files with 11 additions and 2 deletions
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13
src/custommem.c
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@ -1008,7 +1008,15 @@ static uintptr_t getDBSize(uintptr_t addr, size_t maxsize, dynablock_t** db)
void addDBFromAddressRange(uintptr_t addr, size_t size)
{
dynarec_log(LOG_DEBUG, "addDBFromAddressRange %p -> %p\n", (void*)addr, (void*)(addr+size-1));
// do nothing, dynablock are allowed based on memory protection flags
// mark existing blocks as unclean, to be sure...
uintptr_t start_addr = my_context?((addr<my_context->max_db_size)?0:(addr-my_context->max_db_size)):addr;
dynablock_t* db = NULL;
uintptr_t end = addr+size;
while (start_addr<end) {
start_addr = getDBSize(start_addr, end-start_addr, &db);
if(db)
MarkRangeDynablock(db, addr, size);
}
}
void cleanDBFromAddressRange(uintptr_t addr, size_t size, int destroy)
@ -1514,7 +1522,8 @@ void updateProtection(uintptr_t addr, size_t size, uint32_t prot)
if(!(dyn&PROT_NEVERPROT)) {
if(dyn && (prot&PROT_WRITE)) { // need to remove the write protection from this block
dyn = PROT_DYNAREC;
mprotect((void*)cur, bend-cur, prot&~PROT_WRITE);
int ret = mprotect((void*)cur, bend-cur, prot&~PROT_WRITE);
dynarec_log(LOG_DEBUG, " mprotect %p:%p 0x%hhx => %d\n", (void*)cur, (void*)(bend-1), prot&~PROT_WRITE, ret);
} else if(dyn && !(prot&PROT_WRITE)) {
dyn = PROT_DYNAREC_R;
}