28 Apr
2015
28 Apr
'15
9:42 a.m.
hi, i am reading the code about system call.
after the sys_ipc_wrapper (in file kern/syscalls.cpp) is called.it get the thread's pointer by current_thread and then get the Syscall_frame. the code is like this: ... Thread *curr=current_thread(); Syscall_frame *f = curr->regs(); ...
i can not understand the relationship between curr->regs() and the system call's stack frame.