> >From the user space when we actually call int 0x80 for making a system > call (placing all arguments in registers), control goes to 'system_call' > (in entry.S). > 'system_call' expects to find arguments on registers. As a first step it > calls 'SAVE_ALL' which pushes register contents onto the stack before > actually invoking the appropriate system call 'sys_xxx'. > Now since the arguments are now on stack, the 'asmlinkage' tag directs > the 'sys_xxx' function to find the arguments on stack. So when control transfers to a system call then , how does the system call know which arguments it has to pop off. Thanks Anurag ******************************************************************************** Network Programs is a SEI-CMM Level 5 & ISO 9001: 2000 Certified Company ******************************************************************************** The information contained in this communication (including any attachments) is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. It may contain confidential or legally privileged information. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by responding to this email and delete it from your system. Network Programs (India) Limited is neither liable for the proper and complete transmission of the information contained in this communication nor for any delay in its receipt. ********************************************************************************
