在不经意间,本人在网上看到了,一个评论,说如果没有实物开发板,可以利用一些工具模拟硬件平台,来学习Linux移植开发等。由于本人正是那种没有多少可流动现金,所以选择了Skyeye。

Skyeye本来是由清华一学生创始的,后来加入了很多同伴与其一起开发。孤身一人开发确实不容易,但很多情况下都得独自开发,像我这种普通高校学生,很难会做出一下令人有兴趣的,而且还会让人加入的事情。所以只能自己努力坚持,才能达到自己的理想目标,即使艰难也得继续,技术路确实不好走啊。这里就不再废话了。

平台描述:

Skyeye是基于Linux开发的,你可以使用Linux来安装,也可以在Windows下使用Cygwin来安装,由于个人认为,Linux是开发必需的平台,所以我将在下文认Linux安装作为实例教程。

我的电脑安装的是Fedora14(关于Linux的一些学习经常,本人的信息方向论坛有讲述一些,可以作为入门参考 http://blog.csdn.net/bakasen/category/787512.aspx) 。可能在网上很多人都听说过Red Hat、Ubuntu等 ,但是Fedora却是很少听见,其实Fedora的前身就是Red Hat,由于Red Hat 公司将Red Hat Linux的开发放到了开源社区(其自身保留Red Hat的企业版),因此改名为Fedora。由于自己没有玩过Red Hat所以也不知道Red Hat与Fedora的差别有多少。所以我只能以我自己在Fedora14上的安装经验告诉大家(不过不同的Linux上安装,差别并不是太大)。

Skyeye安装:

目前最新的Skyeye版本是1.3.2,你可以到 http://www.skyeye.org 下载最新版的Skyeye。

1、安装前准备:

以前的Skyeye是不支持LCD的,但是现在新出的版本都支持LCD,由于Skyeye的LCD是以GTK为基础的,所以安装Skyeye前一定要安装GTK,但是在不同的发行版中,一般都会自带GTK,所以GTK的安装与否就取决于Skyeye的要求了。

2、用yum命令安装一些软件包

#yum install ncurses ncurses-devel glibc glibc-devel libXpm libXpm-devel texinfo xterm xorg-x11-fonts-misc

3、上面软件包安装完成后:

#su
#fc-cache -fv

4、手动创建一些文件头.用vi创建复制进去保存即可

4.1、创建/usr/include/sys/stropts.h 文件:

4.1.1、拷贝下面文件

/* Copyright (C) 1998, 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _STROPTS_H
#define _STROPTS_H	1

#include <features.h>
#include <bits/types.h>
#include <bits/xtitypes.h>

#ifndef __gid_t_defined
typedef __gid_t gid_t;
# define __gid_t_defined
#endif

#ifndef __uid_t_defined
typedef __uid_t uid_t;
# define __uid_t_defined
#endif

typedef __t_uscalar_t t_uscalar_t;

/* Get system specific contants.  */
#include <bits/stropts.h>


__BEGIN_DECLS

/* Test whether FILDES is associated with a STREAM-based file.  */
extern int isastream (int __fildes) __THROW;

/* Receive next message from a STREAMS file.

   This function is a cancellation point and therefore not marked with
   __THROW.  */
extern int getmsg (int __fildes, struct strbuf *__restrict __ctlptr,
		   struct strbuf *__restrict __dataptr,
		   int *__restrict __flagsp);

/* Receive next message from a STREAMS file, with *FLAGSP allowing to
   control which message.

   This function is a cancellation point and therefore not marked with
   __THROW.  */
extern int getpmsg (int __fildes, struct strbuf *__restrict __ctlptr,
		    struct strbuf *__restrict __dataptr,
		    int *__restrict __bandp, int *__restrict __flagsp);

/* Perform the I/O control operation specified by REQUEST on FD.
   One argument may follow; its presence and type depend on REQUEST.
   Return value depends on REQUEST.  Usually -1 indicates error.  */
extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;

/* Send a message on a STREAM.

   This function is a cancellation point and therefore not marked with
   __THROW.  */
extern int putmsg (int __fildes, __const struct strbuf *__ctlptr,
		   __const struct strbuf *__dataptr, int __flags);

/* Send a message on a STREAM to the BAND.

   This function is a cancellation point and therefore not marked with
   __THROW.  */
extern int putpmsg (int __fildes, __const struct strbuf *__ctlptr,
		    __const struct strbuf *__dataptr, int __band, int __flags);

/* Attach a STREAMS-based file descriptor FILDES to a file PATH in the
   file system name space.  */
extern int fattach (int __fildes, __const char *__path) __THROW;

/* Detach a name PATH from a STREAMS-based file descriptor.  */
extern int fdetach (__const char *__path) __THROW;

__END_DECLS

#endif /* stropts.h */

4.1.2、输入命令行,进入后,按i进入文字编辑,粘贴上面文件后,按Ecs,再输入:wq,保存并退出vi。

#vi /usr/include/sys/stropts.h

4.2、创建/usr/include/bits/stropts.h

4.2.1、 拷贝下面文件

/* Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _STROPTS_H
# error "Never include <bits/stropts.h> directly; use <stropts.h> instead."
#endif

#ifndef _BITS_STROPTS_H
#define _BITS_STROPTS_H	1

#include <bits/types.h>

/* Macros used as `request' argument to `ioctl'.  */
#define __SID		('S' << 8)

#define I_NREAD	    (__SID | 1)	/* Counts the number of data bytes in the data
				   block in the first message.  */
#define I_PUSH	    (__SID | 2)	/* Push STREAMS module onto top of the current
				   STREAM, just below the STREAM head.  */
#define I_POP	    (__SID | 3)	/* Remove STREAMS module from just below the
				   STREAM head.  */
#define I_LOOK	    (__SID | 4)	/* Retrieve the name of the module just below
				   the STREAM head and place it in a character
				   string.  */
#define I_FLUSH	    (__SID | 5)	/* Flush all input and/or output.  */
#define I_SRDOPT    (__SID | 6)	/* Sets the read mode.  */
#define I_GRDOPT    (__SID | 7)	/* Returns the current read mode setting.  */
#define I_STR	    (__SID | 8)	/* Construct an internal STREAMS `ioctl'
				   message and send that message downstream. */
#define I_SETSIG    (__SID | 9)	/* Inform the STREAM head that the process
				   wants the SIGPOLL signal issued.  */
#define I_GETSIG    (__SID |10) /* Return the events for which the calling
				   process is currently registered to be sent
				   a SIGPOLL signal.  */
#define I_FIND	    (__SID |11) /* Compares the names of all modules currently
				   present in the STREAM to the name pointed to
				   by `arg'.  */
#define I_LINK	    (__SID |12) /* Connect two STREAMs.  */
#define I_UNLINK    (__SID |13) /* Disconnects the two STREAMs.  */
#define I_PEEK	    (__SID |15) /* Allows a process to retrieve the information
				   in the first message on the STREAM head read
				   queue without taking the message off the
				   queue.  */
#define I_FDINSERT  (__SID |16) /* Create a message from the specified
				   buffer(s), adds information about another
				   STREAM, and send the message downstream.  */
#define I_SENDFD    (__SID |17) /* Requests the STREAM associated with `fildes'
				   to send a message, containing a file
				   pointer, to the STREAM head at the other end
				   of a STREAMS pipe.  */
#define I_RECVFD    (__SID |14) /* Non-EFT definition.  */
#define I_SWROPT    (__SID |19) /* Set the write mode.  */
#define I_GWROPT    (__SID |20) /* Return the current write mode setting.  */
#define I_LIST	    (__SID |21) /* List all the module names on the STREAM, up
				   to and including the topmost driver name. */
#define I_PLINK	    (__SID |22) /* Connect two STREAMs with a persistent
				   link.  */
#define I_PUNLINK   (__SID |23) /* Disconnect the two STREAMs that were
				   connected with a persistent link.  */
#define I_FLUSHBAND (__SID |28) /* Flush only band specified.  */
#define I_CKBAND    (__SID |29) /* Check if the message of a given priority
				   band exists on the STREAM head read
				   queue.  */
#define I_GETBAND   (__SID |30) /* Return the priority band of the first
				   message on the STREAM head read queue.  */
#define I_ATMARK    (__SID |31) /* See if the current message on the STREAM
				   head read queue is "marked" by some module
				   downstream.  */
#define I_SETCLTIME (__SID |32) /* Set the time the STREAM head will delay when
				   a STREAM is closing and there is data on
				   the write queues.  */
#define I_GETCLTIME (__SID |33) /* Get current value for closing timeout.  */
#define I_CANPUT    (__SID |34) /* Check if a certain band is writable.  */


/* Used in `I_LOOK' request.  */
#define FMNAMESZ	8	/* compatibility w/UnixWare/Solaris.  */

/* Flush options.  */
#define FLUSHR		0x01	/* Flush read queues.  */
#define FLUSHW		0x02	/* Flush write queues.  */
#define FLUSHRW		0x03	/* Flush read and write queues.  */
#ifdef __USE_GNU
# define FLUSHBAND	0x04	/* Flush only specified band.  */
#endif

/* Possible arguments for `I_SETSIG'.  */
#define S_INPUT		0x0001	/* A message, other than a high-priority
				   message, has arrived.  */
#define S_HIPRI		0x0002	/* A high-priority message is present.  */
#define S_OUTPUT	0x0004	/* The write queue for normal data is no longer
				   full.  */
#define S_MSG		0x0008	/* A STREAMS signal message that contains the
				   SIGPOLL signal reaches the front of the
				   STREAM head read queue.  */
#define S_ERROR		0x0010	/* Notification of an error condition.  */
#define S_HANGUP	0x0020	/* Notification of a hangup.  */
#define S_RDNORM	0x0040	/* A normal message has arrived.  */
#define S_WRNORM	S_OUTPUT
#define S_RDBAND	0x0080	/* A message with a non-zero priority has
				   arrived.  */
#define S_WRBAND	0x0100	/* The write queue for a non-zero priority
				   band is no longer full.  */
#define S_BANDURG	0x0200	/* When used in conjunction with S_RDBAND,
				   SIGURG is generated instead of SIGPOLL when
				   a priority message reaches the front of the
				   STREAM head read queue.  */

/* Option for `I_PEEK'.  */
#define RS_HIPRI	0x01	/* Only look for high-priority messages.  */

/* Options for `I_SRDOPT'.  */
#define RNORM		0x0000	/* Byte-STREAM mode, the default.  */
#define RMSGD		0x0001	/* Message-discard mode.   */
#define RMSGN		0x0002	/* Message-nondiscard mode.   */
#define RPROTDAT	0x0004	/* Deliver the control part of a message as
				   data.  */
#define RPROTDIS	0x0008	/* Discard the control part of a message,
				   delivering any data part.  */
#define RPROTNORM	0x0010	/* Fail `read' with EBADMSG if a message
				   containing a control part is at the front
				   of the STREAM head read queue.  */
#ifdef __USE_GNU
# define RPROTMASK	0x001C	/* The RPROT bits */
#endif

/* Possible mode for `I_SWROPT'.  */
#define SNDZERO		0x001	/* Send a zero-length message downstream when a
				   `write' of 0 bytes occurs.  */
#ifdef __USE_GNU
# define SNDPIPE	0x002	/* Send SIGPIPE on write and putmsg if
				   sd_werror is set.  */
#endif

/* Arguments for `I_ATMARK'.  */
#define ANYMARK		0x01	/* Check if the message is marked.  */
#define LASTMARK	0x02	/* Check if the message is the last one marked
				   on the queue.  */

/* Argument for `I_UNLINK'.  */
#ifdef __USE_GNU
# define MUXID_ALL	(-1)	/* Unlink all STREAMs linked to the STREAM
				   associated with `fildes'.  */
#endif


/* Macros for `getmsg', `getpmsg', `putmsg' and `putpmsg'.  */
#define MSG_HIPRI	0x01	/* Send/receive high priority message.  */
#define MSG_ANY		0x02	/* Receive any message.  */
#define MSG_BAND	0x04	/* Receive message from specified band.  */

/* Values returned by getmsg and getpmsg */
#define MORECTL		1	/* More control information is left in
				   message.  */
#define MOREDATA	2	/* More data is left in message.  */


/* Structure used for the I_FLUSHBAND ioctl on streams.  */
struct bandinfo
  {
    unsigned char bi_pri;
    int bi_flag;
  };

struct strbuf
  {
    int maxlen;		/* Maximum buffer length.  */
    int len;		/* Length of data.  */
    char *buf;		/* Pointer to buffer.  */
  };

struct strpeek
  {
    struct strbuf ctlbuf;
    struct strbuf databuf;
    t_uscalar_t flags;			/* UnixWare/Solaris compatibility.  */
  };

struct strfdinsert
  {
    struct strbuf ctlbuf;
    struct strbuf databuf;
    t_uscalar_t flags;			/* UnixWare/Solaris compatibility.  */
    int fildes;
    int offset;
  };

struct strioctl
  {
    int ic_cmd;
    int ic_timout;
    int ic_len;
    char *ic_dp;
  };

struct strrecvfd
  {
    int fd;
    uid_t uid;
    gid_t gid;
    char __fill[8];			/* UnixWare/Solaris compatibility */
  };


struct str_mlist
  {
    char l_name[FMNAMESZ + 1];
  };

struct str_list
  {
    int sl_nmods;
    struct str_mlist *sl_modlist;
  };

#endif /* bits/stropts.h */

4.2.2、输入命令行,进入后,按i进入文字编辑,粘贴上面文件后,按Ecs,再输入:wq,保存并退出vi。

#vi /usr/include/bits/stropts.h

4.3、创建/usr/include/bits/xtitypes.h

4.3.1、 拷贝下面文件

/* bits/xtitypes.h -- Define some types used by <bits/stropts.h>.  Generic.
   Copyright (C) 2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _STROPTS_H
# error "Never include <bits/xtitypes.h> directly; use <stropts.h> instead."
#endif

#ifndef _BITS_XTITYPES_H
#define _BITS_XTITYPES_H	1

#include <bits/types.h>

/* This type is used by some structs in <bits/stropts.h>.  */
typedef __SLONGWORD_TYPE __t_scalar_t;
typedef __ULONGWORD_TYPE __t_uscalar_t;


#endif /* bits/xtitypes.h */


4.3.2、输入命令行,进入后,按i进入文字编辑,粘贴上面文件后,按Ecs,再输入:wq,保存并退出vi。

#vi /usr/include/bits/xtitypes.h

5、下载Skyeye,并解压

由于时间关系,我已经下载好skyeye-1.3.2_rc1.tar.gz了,如果还没有下载,请到 http://www.skyeye.org下载。

使用cd命令,把当前路径转到存放 skyeye-1.3.2_rc1.tar.gz的地方,输入如下命令。

#tar zxvf skyeye-1.3.2_rc1.tar.gz

6、开始安装Skyeye

先进入刚才解压的文件路径。

#./configure
#make lib
#make
#make install_lib
#make install

我安装时是按照这一流程操作的,如果上面操作步骤有问题,可以在出错信息中查找原因。

7、环境配置

由于Skyeye默认是安装在/opt/skyeye/中,如果想打开Skyeye需要输入/opt/skyeye/bin/skyeye 才能打开,所以配置一个全局变量,只要在打开终端时,就可以直接输入skyeye才运行Skyeye了。

我是对/etc/profile进入修改的,但是网上写,推荐修改/etc/bashrc。

#vi /etc/bashrc

进入后,按i,到文件末尾加上,具体如下(请完整复制下面代码,因为这种代码格式,有点不一样,少了个空格都可能会出错,加上if是为了防止skyeye被删后,还在PATH中加入其路径):

if [ -d /opt/skyeye ]
then
PATH=/opt/skyeye/bin/:$PATH
fi

然后按Esc,输入:wq,保存并退出,再输入

#source /etc/bashrc

好了,试试直接输入skyeye,会不会有什么反应吧,如果没有,请注销或者重启一下。

8、运行测试用例

默认情况下,Skyeye是安装在/opt/skyeye中,里面有一个名为testsuite的文件夹,这个文件夹中,放的就是一个arm_hello的测试例子。

#cd /opt/skyeye/testsuite/arm_hello/
#skyeye -e arm_hello 

以Skyeye打开arm_hello,进入下面画面。

输入start ,回车,进入下面画面。

输入run,回车,例子开始运行(不知道是我的问题还是什么 ,输入start是会回显出来,但是输入run时,有时没有回显出来,应该是start后,所以输入有时会没有回显),如下。


好了,这里Skyeye已经安装好了。

其实Fedora14系统本身自带了GTK,由于当初不清楚,所以自己还是安装了GTK,过程还是挺曲折的,由于篇幅问题,这里就不再讲述了。