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[DYNAREC] Fixed vsyscall bridge

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This commit is contained in:
ptitSeb 2023-04-22 11:36:28 +02:00
parent 9657bd51d0
commit d546877e7d
1 changed files with 9 additions and 28 deletions
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37
src/tools/bridge.c
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@ -218,41 +218,22 @@ uintptr_t AddVSyscall(bridge_t* bridge, int num)
{
brick_t *b = NULL;
int sz = -1;
#ifdef DYNAREC
int prot = 0;
do {
#endif
mutex_lock(&my_context->mutex_bridge);
b = bridge->last;
if(b->sz == NBRICK) {
b->next = NewBrick(b->b);
b = b->next;
bridge->last = b;
}
sz = b->sz;
#ifdef DYNAREC
mutex_unlock(&my_context->mutex_bridge);
if(box64_dynarec) {
prot=(getProtection((uintptr_t)b->b)&(PROT_DYNAREC|PROT_DYNAREC_R))?1:0;
if(prot)
unprotectDB((uintptr_t)b->b, NBRICK*sizeof(onebridge_t), 1);
else // only add DB if there is no protection
addDBFromAddressRange((uintptr_t)&b->b[b->sz].CC, sizeof(onebridge_t));
}
} while(sz!=b->sz); // this while loop if someone took the slot when the bridge mutex was unlocked doing memory protection managment
mutex_lock(&my_context->mutex_bridge);
#endif
b = bridge->last;
if(b->sz == NBRICK) {
b->next = NewBrick(b->b);
b = b->next;
bridge->last = b;
}
sz = b->sz;
b->sz++;
mutex_unlock(&my_context->mutex_bridge);
b->b[sz].B8 = 0xB8;
b->b[sz].num = num;
b->b[sz]._0F = 0x0F;
b->b[sz]._05 = 0x05;
b->b[sz]._C3 = 0xC3;
mutex_unlock(&my_context->mutex_bridge);
#ifdef DYNAREC
if(box64_dynarec)
protectDB((uintptr_t)b->b, NBRICK*sizeof(onebridge_t));
#endif
return (uintptr_t)&b->b[sz].CC;
}