Let’s say I want to use printk() within arch/x86/boot/string.c before compiling the kernel. Which header file do I have to include so that the linker knows where to find printk()? I tried #include <linux/kernel.h> and #include <linux/printk.h> but I always get errors during make bzImage telling me the linker does not find printk: Answer You are trying to instrument the
Tag: compiler-errors
Webrtc2sip: error adding symbols: DSO missing from command line
I am trying to compile following code webrtc2sip but getting following error. Edit: I have tried following option in Makefile but no luck 🙁 Answer Solution: Finally find it, used following option and it works!
How to print the void * in a function and how to access the void * variable in a function?
I’m trying to pass a function as argument to another function with void pointer and it doesn’t work I Am getting errors like this: How do I fix the problem? Answer To print a pointer you need the “%p” printf format. But it seems that you don’t actually want to print the actual pointer but what it points to, and
free(): invalid pointer; ld terminated with signal 6 [Aborted], core dumped
Error Currently using this to compile my C++ program: I am using Mingw to compile my C++ program from Linux (Ubuntu) to a Windows executable. I am relatively new to compiling via command line, but I would like to switch my work environment completely over to Linux. When I attempt to compile the program, I get the following error: I
fprintf, error: format not a string literal and no format arguments [-Werror=format-security
when I try to compile fprintf(stderr,Usage) on Ubuntu I got this error: but when I compiled that on other linux distributions (RedHat, Fedora, SUSE) that is compiled successfully. Anyone has an idea? Answer You should use fputs(Usage, stderr); There is no need to use fprintf if you arn’t doing formatting. If you want to use fprintf, use fprintf(stderr, “%s”, Usage);
Error compiling BASIC “libnotify” code
Compiling the code gives me “undefined reference to” error: I took the code from this blog. Answer Sounds like you forgot to pass -lnotify to actually link against libnotify.