if (test_thread_flag(TIF_SYSCALL_TRACE) && (current->ptrace & PT_PTRACED)) syscall_trace(regs); 
asmlinkage void syscall_trace_enter(struct pt_regs *regs){	/* do the secure computing check first */	secure_computing(regs->orig_rax);	if (unlikely(current->audit_context))		audit_syscall_entry(current, regs->orig_rax,				    regs->rdi, regs->rsi,				    regs->rdx, regs->r10);	if (test_thread_flag(TIF_SYSCALL_TRACE)	    && (current->ptrace & PT_PTRACED))		syscall_trace(regs);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/2fd6f58ba6efc82ea2c9c2630f7ff5ed9eeaf34a/ptrace.c/clean/arch/x86_64/kernel/ptrace.c