This variable hiding is done by compiler at compile time. It's the compiler which writes the assembly code to define the static and all other variable. It defines the static variables in Data Segment. Now compiling other files it keeps check that if that file is accessing the static variable defined in other file, it should give a compile error and should not compile it. There is nothing at machine level which can block a peace of code defined in other file to restrict access to static variable defined in some other file. Try the following: - Try to write a small code in C language with static variable defined. Now write a small assemble code in another file and access that static variable. - Now compile the .c file and assemble the assembly file seperatily. Once it has been done, link both of these to create the executable. Now run the executable, the code defined in assembly file will be able to access the static variable defined in .c file. It is nothing other than compiler which is restricting our access to static variable defined somewhere else. At machine level (run time) everything is accessible in process address space. Regards, Gaurav -----Original Message----- From: kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies-bounce@xxxxxxxxxxxx] On Behalf Of prasanna wakhare Sent: Thursday, July 22, 2004 3:31 PM To: kernelnewbies@xxxxxxxxxxxx Subject: static_vars hi all, As we know the static variables are only visible to a file in which they declared,that is its defination is not visible outside, But as all variables are stored in data degment of the process what is internal mechanism to prevent some other process ,or specifically from some other file to access it,Is thoses are read only or what thanls Prasanna __________________________________ Do you Yahoo!? Vote for the stars of Yahoo!'s next ad campaign! http://advision.webevents.yahoo.com/yahoo/votelifeengine/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
