I’ve built Linux Kernel, with means of the buildroot. I’ve incorporated opensource amdgpu driver and required firmwares into it. Driver is fine, detecting GPUs, mode setting acts good, adjusting resolution for “small text”, and command line shows up after boot. Now I require to run Ope…
Tag: linux
valgrind Address 0x421688c is 0 bytes after a block of size 4 alloc’d for linked list having integer data
Although there were multiple threads related to valgrind Address 0x421688c is 0 bytes after a block of size 4 alloc’d kind of questions, but all were expressed with either strlen, or ” related issues and I understand them. I am having with linked list insertion dealing with integers. I did inserti…
Invoking keyboard keys, through proc – procedure (function) in tcl
In front of the internet, I could only find so far, just the reverse where the key-related event is associated with the front-end button, not the front-end button that invokes a key. Understood ?! Look: Explanation – If you press a H button, the Hello button will blink. And the same effect happens with …
Remove extra quotation marks in the grep output
the above cammand is used to get an http link example: www.224.ngrok.io but the output is say www.224.ngrok.io” How can I remove the extra ” at the end? I tried editing the ” from the grep command but it doesn’t work. Answer You can use positive lookahead: (?=”)matches the ”…
Output system() in C on one line
I have been trying for hours to create a program that outputs something like command[/home/nerdofcode/]: by running something like: printf(“Command[“, system(“pwd”),”]: “);… But the problem I am receiving is that when I go to type input, it starts typing at command[&#…
libva version error on yocto build
I was trying to build a Yocto Image for intel processor. I downloaded the latest source code of poky and then clone the meta-intel branch and added it to bblayers.conf file. I started build with the following command And got the following error: I have the following recipe in this folder meta/recipes-graphics…
PHP Thread compilation not working
I am attempting to use pthreads with Apache FPM. Step 1. After installing and recompiling php according to: https://blog.programster.org/ubuntu16-04-compile-php-7-2-with-pthreads The server works as expected and I can run pthreads from CLI. Step 2. Then I need to run threads from a web server so I followed th…
Why the address of the pointer variable printed differently between two printf statements without any modification to the variable?
In below simple c test program two printf statements return different values. ( check last four printf statements). output : – I am running it in eclipse ide and using Ubuntu Linux. Why does it behave differently? Answer In several places you are using the wrong format specifier to printf. In particular…
(answerd) find command in Bash SH is not working as expected [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 4 y…
Get just an IP address only from `ipconfig` using native windows command
Let say this is an output of Windows ipconfig command. In Linux OS, I can easily get just an IP Address using grep and cut command. However, in Windows this is the best I can get using findstr command. Is there a way whereby we can cut just the IP portion out of this output? What I’m expecting is someth…