Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Fri, 09 Mar 2012 15:22:34 +0100

张玉亮 wrote:

Hello,

I tried to open a file on my linux host machine via vxworks function open("filename", O_CREAT|O_WRONLY, 0644) from target ME5100. When I run the start file st.cmd ,it printed "undefined symbol: O_CREAT". Which supprot should add to the vxworks kernel image?

Thank you in advance!

Zhang Yuliang
Insititute of High Energy Physics

O_CREAT is a macro that should be defined when you #include <fcntl.h>.

Didn't you get any compiler warnings? They are often more useful than

errors from the loader.

Didn't you have any problems with O_WRONLY? O_CREAT and O_WRONLY are

defined in the same file!

Dirk

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System