venus.w questions

• In a c program, does the whole process terminates when the main thread terminate?
• Something about interrupts of the same source
• Does the flag register need to be saved when an interrupt occurs, or a process scheduling happens?
• asm code containing %0,what does that mean?
• Must IRET be used when returning from an interrupt?
• Different addresses in ELF header and process virtual memory
• something about inet_ntoa()
• how does the OS know the real size of the physical memory?
• Why does iret from a page fault handler generate interrupt 13 (general protection fault) and error code 0x18?
• where should the .bss section of ELF file take in memory?

venus.w answers