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>

qemu/accel/tcg/translate-all.c

@@ -1209,7 +1209,7 @@ static uc_err uc_gen_tb(struct uc_struct *uc, uint64_t addr, uc_tb *out_tb)
 /* Must be called before using the QEMU cpus. 'tb_size' is the size
    (in bytes) allocated to the translation buffer. Zero means default
    size. */
-void tcg_exec_init(struct uc_struct *uc, unsigned long tb_size)
+void tcg_exec_init(struct uc_struct *uc, uint32_t tb_size)
 {
     /* remove tcg object. init here. */
     /* tcg class init: tcg-all.c:tcg_accel_class_init(), skip all. */

qemu/include/sysemu/tcg.h

@@ -14,6 +14,6 @@
 
 struct uc_struct;
 
-void tcg_exec_init(struct uc_struct *uc, unsigned long tb_size);
+void tcg_exec_init(struct uc_struct *uc, uint32_t tb_size);
 
 #endif

qemu/unicorn_common.h

@@ -10,7 +10,7 @@
 // codes for unicorns purposes.
 
 void vm_start(struct uc_struct*);
-void tcg_exec_init(struct uc_struct *uc, unsigned long tb_size);
+void tcg_exec_init(struct uc_struct *uc, uint32_t tb_size);
 bool unicorn_fill_tlb(CPUState *cs, vaddr address, int size,
                       MMUAccessType rw, int mmu_idx,
                       bool probe, uintptr_t retaddr);