asmlinkage long do_syscall_trace_enter()

in kernel/ptrace.c [172:189]

• 10 lines of code
• 3 McCabe index (conditional complexity)

asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
{
	long ret = 0;

	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
	    tracehook_report_syscall_entry(regs))
		/*
		 * Tracing decided this syscall should not happen.
		 * We'll return a bogus call number to get an ENOSYS
		 * error, but leave the original number in regs->regs[0].
		 */
		ret = -1L;

	audit_syscall_entry(regs->er1, regs->er2, regs->er3,
			    regs->er4, regs->er5);

	return ret ?: regs->er0;
}