Add uc_ctl_get/set_tcg_buffer_size

We still need this API because the virtual memory address space of

32 bits os is only 4GB and we default need 1G per instance

Credits to @ZehMatt for original idea

Co-authored-by: ζeh Matt <5415177+ZehMatt@users.noreply.github.com>

include/uc_priv.h

@@ -90,7 +90,7 @@ typedef void (*uc_args_void_t)(void *);
 typedef void (*uc_args_uc_t)(struct uc_struct *);
 typedef void (*uc_args_int_uc_t)(struct uc_struct *);
 
-typedef void (*uc_args_uc_long_t)(struct uc_struct *, unsigned long);
+typedef void (*uc_args_uc_long_t)(struct uc_struct *, uint32_t);
 
 typedef void (*uc_args_uc_u64_t)(struct uc_struct *, uint64_t addr);
 
@@ -400,6 +400,7 @@ struct uc_struct {
 
     FlatView *empty_view; // Static function variable moved from flatviews_init
 
+    uint32_t tcg_buffer_size; // The buffer size we are going to use
 #ifdef WIN32
     PVOID seh_handle;
     void* seh_closure;

include/unicorn/unicorn.h

@@ -571,8 +571,12 @@ typedef enum uc_control_type {
     // Change the tlb implementation
     // see uc_tlb_type for current implemented types
     // Write: @args = (int)
-    UC_CTL_TLB_TYPE
-
+    UC_CTL_TLB_TYPE,
+    // Change the tcg translation buffer size, note that
+    // unicorn may adjust this value.
+    // Write: @args = (uint32_t)
+    // Read: @args = (uint32_t*)
+    UC_CTL_TCG_BUFFER_SIZE,
 } uc_control_type;
 
 /*