EVA插件：如何通过temp变量检查“temp =（volatile unsigned short *）add”中的添加值

Question

我试图通过以下示例中的temp变量检查“temp =（volatile unsigned short *）add”中的添加值：

main() {
    unsigned short add = 0x01;
    unsigned short val = 0x00;
    unsigned short *temp;
    temp = (volatile unsigned short*) add;
    *temp = val;
    //@ assert &temp == (unsigned short) 0x01;
}

但我在“// @ assert＆temp ==（unsigned short）0x01”这一行得到了这个错误。“

[kernel] user error: incompatible types unsigned short and unsigned short **
[kernel] user error: stopping on file "test_func_call.c" that has errors. Add '-kernel-msg-key pp'for preprocessing command.

我知道这可能与C有关，但我也使用Frama-C的标签。希望我能收到关于通过Frama-C检查添加值的答案。

Answer 1

关于：

assert &temp == (unsigned short) 0x01;  

这是试图将temp（在堆栈上）的地址与某个地址（堆栈上的该位置除外）进行比较。自然地，assert()被触发

访问内存中特定地址内容的正确方法是：

temp =  *(unsigned short *) 0x01;