测试.c:
struct Foo{
char a[32]; // 32 and above will produce warning, but 31 and below will not
char d[9]; // 9 and above will produce warning, but 8 and below will not
};
int main()
{
struct Foo foo = {0};
(void)(foo);
return 0;
}
编译命令和警告:
$ arm-eabi-gcc -Wstack-protector -fstack-protector-all -fstack-check -o test test.c
test.c: In function ‘main’:
test.c:6:5: warning: stack protector not protecting local variables: variable length buffer [-Wstack-protector]
int main()
^~~~
我的源代码中的结构类似于Foo
上面显示的源代码,它无法更改,因此我可以用 main 函数做什么来解决警告?
任何帮助将非常感激!