C++ (Cpp) REGS_SET_SYSCALL_RETURN примеры использования

Пример #1

Файл: process_kern.c Проект: GodFox/magx_kernel_xpixl

int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp,
		     unsigned long stack_top, struct task_struct * p, 
		     struct pt_regs *regs)
{
  	void (*handler)(int);

	if(current->thread.forking){
	  	memcpy(&p->thread.regs.regs.skas, 
		       &current->thread.regs.regs.skas, 
		       sizeof(p->thread.regs.regs.skas));
		REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.skas.regs, 0);
		if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp;

		handler = fork_handler;
	}
	else {
	  	memcpy(p->thread.regs.regs.skas.regs, exec_regs, 
		       sizeof(p->thread.regs.regs.skas.regs));
		memcpy(p->thread.regs.regs.skas.fp, exec_fp_regs, 
		       sizeof(p->thread.regs.regs.skas.fp));
	  	memcpy(p->thread.regs.regs.skas.xfp, exec_fpx_regs, 
		       sizeof(p->thread.regs.regs.skas.xfp));
                p->thread.request.u.thread = current->thread.request.u.thread;
		handler = new_thread_handler;
	}

	new_thread(p->thread_info, &p->thread.mode.skas.switch_buf,
		   &p->thread.mode.skas.fork_buf, handler);
	return(0);
}

Пример #2

Файл: process_kern.c Проект: FatSunHYS/OSCourseDesign

int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp,
		     unsigned long stack_top, struct task_struct * p,
		     struct pt_regs *regs)
{
  	void (*handler)(int);

	if(current->thread.forking){
	  	memcpy(&p->thread.regs.regs.skas, &regs->regs.skas,
		       sizeof(p->thread.regs.regs.skas));
		REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.skas.regs, 0);
		if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp;

		handler = fork_handler;

		arch_copy_thread(&current->thread.arch, &p->thread.arch);
	}
	else {
		init_thread_registers(&p->thread.regs.regs);
                p->thread.request.u.thread = current->thread.request.u.thread;
		handler = new_thread_handler;
	}

	new_thread(task_stack_page(p), &p->thread.mode.skas.switch_buf,
		   &p->thread.mode.skas.fork_buf, handler);
	return(0);
}

Пример #3

Файл: syscall.c Проект: Medvedroid/OT_903D-kernel-2.6.35.7

void handle_syscall(struct uml_pt_regs *r)
{
	struct pt_regs *regs = container_of(r, struct pt_regs, regs);
	long result;
	int syscall;

	syscall_trace(r, 0);

	/*
	 * This should go in the declaration of syscall, but when I do that,
	 * strace -f -c bash -c 'ls ; ls' breaks, sometimes not tracing
	 * children at all, sometimes hanging when bash doesn't see the first
	 * ls exit.
	 * The assembly looks functionally the same to me.  This is
	 *     gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)
	 * in case it's a compiler bug.
	 */
	syscall = UPT_SYSCALL_NR(r);
	if ((syscall >= NR_SYSCALLS) || (syscall < 0))
		result = -ENOSYS;
	else result = EXECUTE_SYSCALL(syscall, regs);

	REGS_SET_SYSCALL_RETURN(r->gp, result);

	syscall_trace(r, 1);
}

Пример #4

Файл: syscall_user.c Проект: 12019/hg556a_source

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);
}

Пример #5

Файл: syscall_user.c Проект: kzlin129/tt-gpl

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
}