【vxworks笔记】vxworks调试常用命令

【vxworks笔记】vxworks调试常用命令

ahong007 发表于 - 2010-1-15 3:17:00

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总结的vxworks常用调试命令，学习vxworks这些东西是必须的。

1．与任务相关的命令
sp ,[arg1],...,[arg9]
－启动任务，最多接受9个参数，默认的优先级100、堆栈20000字节

period n,,[arg1],...,[arg8]
－创建一个周期调用的任务，周期为n秒，最多接受8个参数

repeat m,,[arg1],...,[arg8]
－创建一个反复调用的任务，调用次数为m，m＝0时永久调用，最多也是8个参数

ts tidX         －挂起任务
tr tidX         －恢复挂起的任务
td tidX         －删除任务
i   tidX         －显示任务基本信息，参数为0时显示全部任务
ti tidX         －显示任务详细信息，包括寄存器、堆栈等
tt tidX         －显示任务的函数调用关系
checkStack tidX －显示任务堆栈使用的历史统计，参数为0时显示全部任务
[其中tidX可以为任务ID 也可以为任务名]

2、系统信息

lkup ["string"] －在系统符号表中查找并列出含有"string"字符的函数及全局变量，有两个特殊参数：
                   0，给出符号表统计；""（空字符串），列出全部符号

lkAddr addr      －显示addr地址附近的符号表

l addr,[n]       －显示addr地址开始的n条指令的反汇编，n省略时默认为10条指令

h [n]            －n为0时列出最近执行的shell命令，默认20条；n非0时，设定shell记录的历史命令的数目

d [addr,[number],[width]]
                 －显示addr地址开始的number个单元的内容，width定制每个单元的宽度，可以是1、2、4、8

m addr,[width]   －按width宽度修改addr地址的内容，width可以是1、2、4、8

memShow 1        －显示系统分区上空闲和已分配空间的总数等

printErrno value －打印系统定义的错误码的宏

3、与网络相关的命令

ifShow       ["ifname"]            - show info about network interfaces
inetstatShow                       - show all Internet protocol sockets
tcpstatShow                        - show statistics for TCP
udpstatShow                        - show statistics for UDP
ipstatShow                         - show statistics for IP
icmpstatShow                       - show statistics for ICMP
arpShow                            - show a list of known ARP entries
mbufShow                           - show network stack data pool statistics
netStackSysPoolShow                - show network stack system pool statistics

routeShow                          - display all IP routes (summary information)
mRouteShow                         - display all IP routes (verbose information)
routestatShow                      - display routing statistics
routeAdd     "destaddr","gateaddr" - add route to route table
routeDelete "destaddr","gateaddr" - delete route from route table

说明：上述大多数命令都可以在help、netHelp中查到

The VxWorks shell

Useful control chars for all targets:

^S, ^Q are good for debugging

^H, ^U backspaces and delete line control

ESC to put in vi edit mode. see section 11.5 of VxWORKS programmer's manual for vi edit command summary

Shell syntax:

Can interpret "C-like" expressions. " ;" will separate command execution from the VxWORKS shell context. It is used to resolve ambiguity between commands.

Any symbol stored in the symbol table can be referenced. ex: printf, fopen, logMsg, or global variables. When calling functions, the shell ignores the "()" braces, so you may omit them.

Data Types -- strong type-casting recommended or else:

• L.H. type = R.H. type
• mixing floats and ints will result in a double
• doubles always assumed unless explicit type-casting is performed
• allocating char-strings done by:
  

  ->
-> ss = "bla bla bla"
->


• explicit address referencing: eg,
  

  ->
-> *0x1100 = 10;
->


Unlike C, Array references require an explicit application of the "&" operator. Array declarations in the shell should be avoided if at all possible.

Shell Redirection:

copy < input_file > output_file

Be careful of using "<" or ">". For example:

->
-> x > y
->


will print the value of x out to a stream named "y", while

->
-> x > y;
->


will be interpreted as "x is greater than y" !

script files can be used to spawn tasks, set variables, etc.:

->
-> < script-file
->


will invoke the commands contained within file named, script-file.

You can quickly create script files by redirecting the history listing shell command to the output and then stripping the numbers off:

->
-> h > host:/tmp/script
->

Then from the UNIX host, you do the following to strip the numbers off:

simbox%
simbox% colrm 1 5 < /tmp/script > /tmp/newscript
simbox%