Unsigned extension

Author: wtdcode

qemu/target/arm/translate.c

@@ -455,16 +455,21 @@ static void gen_sub_carry(TCGContext *tcg_ctx, TCGv_i32 dest, TCGv_i32 t0, TCGv_
 static inline void mb_tcg_opcode_cmp_hook(TCGContext *tcg_ctx, TCGv_i32 v0, TCGv_i32 v1, uint32_t size)
 {
     uc_engine *uc = tcg_ctx->uc;
-    TCGv_i64 targ1 = temp_tcgv_i64(tcg_ctx, tcgv_i32_temp(tcg_ctx, v0));
-    TCGv_i64 targ2 = temp_tcgv_i64(tcg_ctx, tcgv_i32_temp(tcg_ctx, v1));
+    
     if (HOOK_EXISTS_BOUNDED(uc, UC_HOOK_TCG_OPCODE, tcg_ctx->pc_start)) {
         struct hook *hook;
         HOOK_FOREACH_VAR_DECLARE;
         HOOK_FOREACH(uc, hook, UC_HOOK_TCG_OPCODE) {
             if (hook->to_delete)
                 continue;
             if (hook->op == UC_TCG_OP_SUB && (hook->op_flags & UC_TCG_OP_FLAG_CMP)) {
+                TCGv_i64 targ1 = tcg_temp_new_i64(tcg_ctx);
+                TCGv_i64 targ2 = tcg_temp_new_i64(tcg_ctx);
+                tcg_gen_extu_i32_i64(tcg_ctx, targ1, v0);
+                tcg_gen_extu_i32_i64(tcg_ctx, targ2, v1);
                 gen_uc_traceopcode(tcg_ctx, hook, targ1, targ2, size, uc, tcg_ctx->pc_start);
+                tcg_temp_free_i64(tcg_ctx, targ1);
+                tcg_temp_free_i64(tcg_ctx, targ2);
             }
         }
     }