示例#1
0
void syscall_handler_tt(int sig, struct pt_regs *regs)
{
	void *sc;
	long result;
	int syscall;
#ifdef CONFIG_SYSCALL_DEBUG
	int index;
  	index = record_syscall_start(syscall);
#endif
	sc = UPT_SC(&regs->regs);
	SC_START_SYSCALL(sc);

	syscall_trace(&regs->regs, 0);

	current->thread.nsyscalls++;
	nsyscalls++;
	syscall = UPT_SYSCALL_NR(&regs->regs);

	if((syscall >= NR_syscalls) || (syscall < 0))
		result = -ENOSYS;
	else result = EXECUTE_SYSCALL(syscall, regs);

	/* regs->sc may have changed while the system call ran (there may
	 * have been an interrupt or segfault), so it needs to be refreshed.
	 */
	UPT_SC(&regs->regs) = sc;

	SC_SET_SYSCALL_RETURN(sc, result);

	syscall_trace(&regs->regs, 1);
#ifdef CONFIG_SYSCALL_DEBUG
  	record_syscall_end(index, result);
#endif
}
示例#2
0
void handle_syscall(union uml_pt_regs *regs)
{
	long result;
	int index;

	index = record_syscall_start(UPT_SYSCALL_NR(regs));

	syscall_trace();
	result = execute_syscall(regs);

	REGS_SET_SYSCALL_RETURN(regs->skas.regs, result);
	if((result == -ERESTARTNOHAND) || (result == -ERESTARTSYS) || 
	   (result == -ERESTARTNOINTR))
		do_signal(result);

	syscall_trace();
	record_syscall_end(index, result);
}
示例#3
0
void handle_syscall(union uml_pt_regs *regs)
{
	long result;
#ifdef UML_CONFIG_SYSCALL_DEBUG
  	int index;

  	index = record_syscall_start(UPT_SYSCALL_NR(regs));
#endif

	syscall_trace(regs, 0);
	result = execute_syscall_skas(regs);

	REGS_SET_SYSCALL_RETURN(regs->skas.regs, result);

	syscall_trace(regs, 1);
#ifdef UML_CONFIG_SYSCALL_DEBUG
  	record_syscall_end(index, result);
#endif
}