The method is defined in kthread.c file and prototyped in kthread.h. But it is not exported. In my driver I want to start a kthread on a given CPU, so I do: I can compile but I get linkage error on resolving module symbols on MODPOST: How should I proceed? How to import this symbol or what to do instead?
Delete last executed command in Linux terminal
I want to do a clear but only of the last command I executed. Here is a example so you can understand it better: If that’s the current state of the shell I want to execute a command (for example echo a > /tmp/foo) and keep the console: So it should be something like echo a > /tmp/foo && cl…
VATIC Annotation Tool installation – “turkic setup –database” – unknown action setup
I’m trying to install VATIC Video Annotation Tool on Linux. I followed the instructions in README file twice, always failing to execute command: which gives these two error messages: Other turkic commands, e.g. turkic status –verify give the same error messages (for a given action name). I also no…
How to use gtkd on linux
I am trying to compile a hello world program using the gtkd library. I am using the dmd compiler (installed into my ~/ directory) and I have already checked that the compiler works flawlessly. Just in case, here is my source code: The pragmas are commented out, because (if I understand this correctly) they do…
troubles linking boost statically to shared objet on linux
I am using Boost 1.57.0 I compiled it with the following command When I compile shared library to where I want to link boost statically I got the following error What I am doing wrong? I am on x86_64-linux-gnu. Answer We use this script to build boost statically and do build shared libs from it afterwards: Th…
Remap a keyboard with ioctl under linux
I am actually trying to write a small program to catch global keyboard inputs from specific USB keyboards under linux. I am testing with this piece of code : Ths point is that I don’t know how to change some input key by other. I tried by calling write() on currently red event by changing the event code…
Accessing errno.h in assembly language
I want to access errno present in errno.h in assembly language in order to handle errors of write function call. I found somewhere that make call to _error in assembly language for this purpose but it is throwing errors as : My assembly code : ExitNewShell.asm How to access errno in assembly language? Answer …
Difference between environment in Dockerfile RUN and interactive shell on a running container?
I’m starting with a Docker image that has OracleXE installed on it. This image has a running instance, with everything configured. I can fire up that image, and, either from an interactive shell container, or by ssh’ing into the container, I can easily execute sqlplus. To create a container with m…
How to find a free TCP port
How do I find a completely free TCP port on a server? I have tried the command line; but I am told the ones with a status of LISTENING are already being used. I also tried a tool called TCPView but again it only showed which TCP ports were being used. I know how to telnet to a port to
Is it possible to export the raw text password in Linux when the user is logging in?
I was just wondering, is it possible to export the raw text password into a file using echo “$password” >> /home/user/Desktop/file name. I know that the password is validated against the shadow file by pam_unix.so. Can the username and password exported before the raw text is being converted…