UPT_SYSCALL_NR
#define PT_REGS_SYSCALL_NR(r) UPT_SYSCALL_NR(&(r)->regs)
audit_syscall_entry(UPT_SYSCALL_NR(®s->regs),
trace_sys_enter(regs, UPT_SYSCALL_NR(®s->regs));
UPT_SYSCALL_NR(r) = PT_SYSCALL_NR(r->gp);
syscall = UPT_SYSCALL_NR(r);
UPT_SYSCALL_NR(regs) = -1; /* Assume: It's not a syscall */
UPT_SYSCALL_NR(&child->thread.regs.regs) = value;
UPT_SYSCALL_NR(&child->thread.regs.regs) = value;