Hi! On Thu, Dec 20, 2007 at 01:03:35PM -0500, Ye ilho wrote: [...] > I thought that I should get different value for the 2nd printf because > I have 'int a' in between but when I run it I am getting the same > value for both printfs. > Can anyone give me some insight on this? I am simply trying to get > stack pointer here. I am sorry for simple question and I tried to > google this but I was not good enough to find an answer. Thank you > very much in advance. What is happening is that the compiler will not do what you think it does, i.e., local variables are stored in the stack _but_ stack is set at the beginning of the main function. When you declare a local variable after the 1st printf, the compiler will allocate space for it at the beginning of the main function. Of course that, when calling printf the stack is also changed in order to pass the printf parameters... You can check exactly what is happening by using objdump ;) Hope this helps -- Luis Henriques -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
