All Questions
88 questions
0
votes
1
answer
79
views
How can I write a hexadecimal viewer in C? [duplicate]
I'm working on a code for a homework. Our teacher gave us this example. We gotta write a code about a hexadecimal viewer. This one must write down lines, edit, map characters and edit.
#include <...
1
vote
0
answers
67
views
Getting clang: error: linker command failed with exit code 1 (use -v to see invocation) when using code runner in VSCode on Ubuntu System
The program is structured as follows:
main.c:
#include <stdio.h>
#include "../include/test.h"
int main(){
moo();
return 0;
}
test.c:
#include <stdio.h>
#include ".....
- 11
-1
votes
1
answer
38
views
CPU Usage in Linux. in C - compiler problems
I've been trying to read and print in terminal all my CPU cores usage.
My program work fine until I've made it a multithread app, and now my compiler seams to say that there is no reference betwin ...
0
votes
1
answer
214
views
GCC C/C++ Compiler missing some "files", whose seems to have weird names
From some random moment and for some unknown reason, my compiler stopped working. It lets me know about errors, warnings, etc., but i still get this error:
/home/vhajsman/opt/cross/lib/gcc/i686-elf/14....
- 43
4
votes
1
answer
221
views
Why are symbols unresolved here?
I've read here:
and it stated:
A function defined with inline on its own. Stand-alone object code is always emitted. You can only write one definition like this in your entire program. If you want to ...
- 1,269
0
votes
1
answer
496
views
Pktgen fails to compile - Error: include ‘<ctype.h>’ or provide a declaration of ‘isspace’ / ’isblank’
I'm trying to compile pktgen, but keep getting this error when I try to compile:
The DPDK version I'm running is dpdk-stable-22.11.1 and I'm following the official guide Getting Started with Pktgen ...
- 122
0
votes
1
answer
224
views
gcc SO_DOMAIN does not compile with -std=c2x
Today I had revisited old code of mine. The code use socket and getsockopt calls. I had modified makefile to compile under -std=c2x to use modern C. Strangley enough the simple line of getsockopt(fd, ...
0
votes
1
answer
267
views
Running C compiler using fexecve
For an assignment, I'm trying to compile a program using fexecve. The relevant code:
/* compile */
char* compiler_envp[] = {NULL};
char* compiler_argv[] = {"/usr/bin/cc", "math.c", ...
- 119
1
vote
1
answer
600
views
"Stack smashing detected" when compiled on a Linux machine, but not on a Windows machine
I'm writing some C code that gets compiled on both a Linux machine and a Windows machine (specifically, I am writing C code that is used within some R functions, so not a standalone C program). When ...
- 13
0
votes
1
answer
60
views
Makefile - Help me in getting the error removed
I am building a program from a single main.c file.
Errors appear when using make
Note - I have 64 bit library files in a folder lib.
Earlier 32 bit Linux platform I was working on.
Now it's 64 bit ...
1
vote
0
answers
506
views
Compilation failure with -I/usr/include/linux
I am trying to find why I am getting the following errors when I am compiling a simple program (printing hello world) while providing the include path /usr/include/linux. How does inclusion of this ...
0
votes
1
answer
2k
views
Linux kernel build compliler_assert error
I am having problem in building kernel.
This is what I typed into my terminal.
$ wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.5.16.tar.xz
$ xz -d linux-5.5.16.tar.xz
$ tar xvf linux-5.5....
- 1
0
votes
1
answer
235
views
error: invalid initializer va_list ap2 = va_arg(ap, va_list);
I'm currently in chroot building LFS. I was trying to compile a legacy project called install-log but I get this error:
(lfs chroot) root:/src/install-log# make install
cc -MMD -c -o list.o list.c
In ...
- 25
0
votes
1
answer
995
views
How to link math.h library in a makefile?
i need to compile 3 files- part1.c, part2.c, and part3.c in a makefile.
only part3.c needs to use the <math.h> library.
Before a makefile, this is what the gcc commands will look like:
gcc -g -o ...
- 1
0
votes
2
answers
52k
views
/usr/bin/ld: cannot find -l<name of the library> while compiling with gcc
I am writting an mqtt communication script where I am using the paho library.
the files .so exist in the /home/chaima/paho.mqtt.c/build/output directory.
but when trying to compile the code using the ...
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