As of May 31, 2023, we have updated our Code of Conduct.

Questions tagged [gdb]

The GNU Debugger usually called just GDB

Filter by
Sorted by
Tagged with
0 votes
0 answers
16 views

gdb-multiarch cannot recognize my arm binary file

I want to use gdb-multiarch to remote debug arm code running in qemu. Below is my mk script: ARM=arm-none-eabi QEMU=qemu-system-arm $ARM-as -o ts.o ts.s -g $ARM-ld -T t.ld -o t.elf ts.o $ARM-nm t.elf ...
shino's user avatar
  • 1
-2 votes
0 answers
16 views

cannot automatically execute the previous command by pressing Enter in GDB

I upgraded gcc g++, and after that, I couldn't press enter to execute the previous command in my gdb. How can I fix that.
vivi's user avatar
  • 1
0 votes
0 answers
137 views

debuginfod not working

My attempt to make debuginfod work in gdb failed. I followed the directions at: https://ubuntu.com/server/docs/service-debuginfod In accordance with those instructions executed the command: export ...
Stephen's user avatar
  • 435
0 votes
0 answers
108 views

How to debug GTK crashes?

Gramps is a Python/GTK application. It crashes when (GTK_MODULES is set AND XDG_RUNTIME_DIR) is set. If only one is set, there is no crash. The default value of GTK_MODULES has several colon-...
charmoniumQ's user avatar
0 votes
0 answers
115 views

Debugging a crashing program debuginfod-enabled GDB

I'm trying to diagnose why renderdoccmd is crashing after a default install of 22.10. I installed renderdoc with apt install renderdoc, and then running renderdoccmd immediately segfaults. So I whip ...
Charles's user avatar
  • 101
1 vote
0 answers
307 views

gdb Installation Error -- libc6-dev

UPDATE: I have re-installed (3 times) Ubuntu, and performed sudo apt policy libc6 libc6-dev with this output: libc6: Installed: 2.35-0ubuntu3.1 Candidate: 2.35-0ubuntu3.1 Version table: *** 2....
Jorge O-L's user avatar
1 vote
1 answer
46 views

Has the apache2-dbg package been dropped from Ubuntu 22.04?

Has the apache2-dbg package been dropped from Ubuntu 22.04? If so, is there any replacement?
anon123's user avatar
  • 31
0 votes
0 answers
57 views

GDB in DDD produces a return character when I attempt to lookup value of variable

I've been trying to look up a value using gdb in ddd, in a .asm file as I am programming x86 assembly but when I type (into gdb) x/uw &min in the gdb shell, I just get a return character that ...
Furyan's user avatar
  • 1
0 votes
1 answer
844 views

22.04 gnome-control-center GLib segmentation fault

Since updating to 22.04, the settings menu segfaults every time I try to start it. I see some other threads with this issue - one who stopped using ubuntu as a solution, and the other answers did not ...
Drew75's user avatar
  • 123
9 votes
1 answer
1k views

How to update glibc on ubuntu 20.04 due to security vulnerability

I am trying to update glibc 2.31-0ubuntu9.2. As an internal scan has picked this up as vulnerable. https://nvd.nist.gov/vuln/detail/CVE-2021-33574#range-6777140 When I use sudo apt-get update then ...
lcfc's user avatar
  • 91
1 vote
1 answer
315 views

Mouse click not working while debugging with GDB

I'm trying to debug a windowed application with GDB in Ubuntu. First I set a breakpoint in the code. Then, while running the windowed application, the program stops at the breakpoint at some time. ...
user1754322's user avatar
0 votes
1 answer
856 views

How to fix the X Window System error coming when running a c++ GTK program

I am getting an error while running a program written in c++ in GTK. The program stops when this error appear. I am a beginner and i have no idea what to do for this. The error is as follows. (main:...
Dilshan Madulanka's user avatar
0 votes
0 answers
1k views

Package: gcc-arm-none-eabi (15:9-2019-q4-0ubuntu1) [universe] on 20.04 misses gdb executable

As other people tried this also How to install arm-none-eabi-gdb on Ubuntu 20.04 LTS (Focal Fossa) i found that the universe repo has a pretty much working toolchain. I've tested it. hoo2@shirka:~$ ...
hoo2's user avatar
  • 135
2 votes
0 answers
1k views

GDBus.Error:org.freedesktop.PolicyKit1Error.Failed: Unix process subject does not have uid set. Virtualbox

Hello ubuntu Community, i have a Problem to open the root Folder or an application. I use Ubunutu with the Virtualbox. I would be happy if someone could help me.Error
omaro888's user avatar
0 votes
0 answers
420 views

gdb/gdb multiarch does not work on my ubuntu

currently I'm running xv6 on qemu on Ubuntu machine, the version is buster/sid On one terminal I start qemu like this, seems ok ~/xv6-labs-2020# make qemu-gdb *** Now run 'gdb' in another window. qemu-...
Thomas's user avatar
  • 1
0 votes
0 answers
259 views

Qt5 installer does not find debugger

I installed Qt5.15.2 with the online community-version installer on Ubuntu 20.04. In QtCreator I find the compilers but not the debugger. On my system I also have GDB: $apt policy gdb gdb: Installed:...
Mark's user avatar
  • 447
0 votes
1 answer
226 views

How does a newer version of a package disappear from apt-get install?

I have two Ubuntu 18.04 servers at my office that are for development work, and we have the GNU Debugger installed. All of these packages are always installed using the "sudo apt install" ...
S. Nixon's user avatar
  • 372
0 votes
1 answer
78 views

Is "Ubuntu Desktop for Developers" different from "Ubuntu Desktop"?

Is "Ubuntu Desktop for Developers" different from "Ubuntu Desktop"? If so, how do I download the Developers' version. I want to make sure that I get things like gcc, g++, gdb, ...
user296662's user avatar
2 votes
0 answers
157 views

Two different core files generated at different occasions of application crash

I wanted my C++ application to produce core dumps when it crashed, so I followed this advice: https://stackoverflow.com/questions/2065912/core-dumped-but-core-file-is-not-in-the-current-directory ...
Piotr G's user avatar
  • 431
0 votes
0 answers
500 views

Prompt is marching across the screen when entering gdb TUI

I'm debugging a program: // t.c #include <assert.h> int main() { assert(0); return 0; } gcc t.c -g gdb ./a.out (gdb) r Starting program: /home/user/a.out a.out: t.c:4: main: Assertion ...
zingdle's user avatar
  • 133
0 votes
1 answer
2k views

what is the difference between gdb and gdb-peda?

I have tried to search on google but still could not find anything that i understand. Can anyone tell me the difference between them? And which one is better to debug c++?
Zozzizzez's user avatar
  • 425
1 vote
0 answers
25 views

.coredumpctl pid weird alignment

While starting my first use of coredumpctl, I have noticed a repeated occurrence of a bug. I have created a small snippet which contains a stack BOF vulnerability (compiled with no stack protection). ...
user6035109's user avatar
0 votes
0 answers
322 views

gdb on Ubuntu 19.10 showing wrong variable values

Since upgrading to Ubuntu 19.10, gdb (8.3) is nearly unusable using programs compiled using the default gcc (9.2.1) using -O0 -ggdb -g3 because most displayed values for variables are wrong. The ...
Jan Wielemaker's user avatar
1 vote
1 answer
665 views

Ubuntu 19.10 gdb nearly unusable long delay

I am having a problem with the gnu debugger on Ubuntu 19.10. The problem presents itself as a long delay, somewhere between 20-30 seconds between running my program with gdb and my program actually ...
sysrpl's user avatar
  • 241
1 vote
0 answers
1k views

gdb error for keepassx/keepassxc: "Cannot find user-level thread for LWP" "generic error"

I tried to run gdb on keepassxc, but encountered an unfamiliar error: $ gdb /usr/bin/keepassxc GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git Copyright (C) 2018 Free Software Foundation, Inc. ...
Nathaniel M. Beaver's user avatar
0 votes
1 answer
68 views

Is there an Ubuntu developer installation which comes with full C/C++ development envirenment installed?

I do not want to download source code for gnu gcc/g++/gdb/make... and compile from scratch. I am OK with downloading a built and ready to use set of packages. But best of all, I am looking for an ...
classicist's user avatar
3 votes
0 answers
305 views

Manually compile and install debugging symbols for the recoll package?

I've got some crash files for recoll from which I would like to extract a symbolic stack trace. Unfortunately, there are no debug symbols available for this package, so my stack traces are mostly ...
Nathaniel M. Beaver's user avatar
1 vote
0 answers
3k views

How to solve warnings from GDB?

I need help about debugging GIMP 2.10.10 O.S. Ubuntu 18.04.2 LTS GDB Version (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git I get this message from GDB when i try to generate a backtrace inside flatpak ...
Jorge Paralisis's user avatar
0 votes
1 answer
1k views

TrueStudio "Could not determine GDB version command" error

I am working with TrueStudio. I face with this error when click Debug button. https://imgur.com/YWEyf9i How can I fix this problem? Before this in the build step I saw another warning as you can see ...
fury's user avatar
  • 31
4 votes
2 answers
11k views

Core file not generated in Ubuntu 18.04

I was trying to generate a core file in Ubuntu 18.04. My program generates a core file, but I'm not able to find it. $ ./a.out Segmentation fault (core dumped) $ ls -lrt total 32 -rwxrwxrwx 1 sanjay ...
sam 's user avatar
  • 41
1 vote
2 answers
5k views

g++ and gdb problem: debug symbols for shared libraries not found

I am porting a large set of applications and libraries from Debian 7 to Ubuntu 16.04. This is a GNU autotools project, so libtool is involved. gdb cannot find the symbols for the majority of the ...
robgarv's user avatar
  • 21
1 vote
1 answer
2k views

netbeans missing native build tools

My Goal I want to have a fully functioning NetBeans C/C++ on my ubuntu 18.04 A small background The first problem I've encountered was build host not connected after a little research I've ...
SDIdo's user avatar
  • 105
2 votes
0 answers
1k views

Upgrade to python 2.7.15 (for gdb 8) on Ubuntu 16.04

I am running Ubuntu 16.04 with gdb version 7.11.1-0ubuntu1~16.5. When I upgraded g++ to g++-6.4 (Ubuntu 6.4.0-17ubuntu1~16.04), gdb started giving python errors like: Python Exception <class '...
Sagar Jha's user avatar
  • 1,073
4 votes
0 answers
927 views

How to set up debugger for ARM Assembly using qemu and gdb

I followed this tutorial as well as this one to set up a compiler + debugger for ARM Assembly. Following the first one, I ran the command qemu-arm -singlestep -g 1234 emptyand started a new shell, ...
Grunwalski's user avatar
22 votes
7 answers
63k views

How can I install "gdb-arm-none-eabi" on Ubuntu 18.04 (Bionic Beaver)?

In previous versions of Ubuntu, GDB for ARM Cortex processors was part of the package gdb-arm-none-eabi. Searching https://packages.ubuntu.com/ for gdb-arm-none-eabi for Ubuntu 18.04 doesn't return ...
user1729210's user avatar
11 votes
1 answer
3k views

False "application not responding" box is creating havoc with GDB

I'm trying to debug a C++ application using GDB and the Qt Creator IDE. Every time the debugger stops on a breakpoint, Ubuntu (v 17.10) thinks the application is frozen and issues the dialog box with ...
Carlton's user avatar
  • 291
0 votes
0 answers
680 views

GDB not available after "make install" unless a new terminal is opened

I'm fairly new to Ubuntu and development on Linux in general. After building GDB from source (pre-installed the dependencies): $ git clone git://sourceware.org/git/binutils-gdb.git $ CD binutils-gdb $...
Aaron M.'s user avatar
3 votes
3 answers
7k views

debugging in codelite - "GDB: Failed to set controlling terminal: Operation not permitted"

while debugging in codelite this error appears in the terminal : could anyone help me solving this problem?
Muhammad Salah Eldin's user avatar
0 votes
0 answers
3k views

gdb during startup program exited with code 127

I am using Ubuntu 17.04, I am having problem with gdb. I am using CLion and Netbeans for C++ programming, when I debug code, it's throwing me this error During startup program exited with code 127. I ...
Lokesh Sanapalli's user avatar
0 votes
3 answers
3k views

Cannot install GDB on Ubuntu 17.10 due to Python dependency issues

I had to uninstall GDB just to upgrade to 17.10, but now I can't get it installed again. sudo apt install gdb Reading package lists... Done Building dependency tree Reading state information......
Robobenklein's user avatar
  • 1,486
0 votes
3 answers
3k views

gdb-qemu : can't put break point on kernel function ( kernel 4.10.0-35)

I am trying to debug the Ubuntu kernel using KDB + qemu. However, I am not able to debug it. Following is the error I am getting. Can someone help? Starting QEMU: sudo qemu-system-x86_64 -enable-...
aMa's user avatar
  • 133
-1 votes
1 answer
340 views

Debian 4.9.3 - downgrading gdb, which version i need? [closed]

I can't work with Eclipse's debug stepping due to gdb version 7.12 not supporting certain option: Failed to execute MI command: maintenance set python print-stack off Error message from debugger back ...
ZuOverture's user avatar
0 votes
1 answer
2k views

GDB can't break strcpy()? [closed]

so im trying to debug this simple c program #include<stdio.h> #include<string.h> int main(){ char str_a[20]; strcpy(str_a,"Hello, world!\n"); printf(str_a); return 0;} gcc -...
IDK's user avatar
  • 583
6 votes
1 answer
597 views

What would cause an installed application to not be recognized as such?

I need to revert my version of gdb back to a previous release so that it is compatible with a certain tool. I currently have gdb 7.7.1 installed. If I enter gdb into the terminal and hit enter, gdb ...
the_endian's user avatar
2 votes
1 answer
969 views

gdb skips breakpoints without sudo

I'm trying to debug simple 8-line program with gdb: $ g++ -g 1.cpp $ gdb a.out (gdb) break 5 Breakpoint 1 at 0x40089e: file 1.cpp, line 5. (gdb) run However, gdb will just skip over the breakpoint ...
D. Dmitriy's user avatar
0 votes
1 answer
1k views

Gdb pretty printer is not working in Ubuntu 16.04

I have debugged C++ codes using gdb in Ubuntu 14.04. When I pass a stl container to the print command, it used to print the contents of the container. But then I upgraded to Ubuntu 16.04 LTS a week ...
ajith.mk's user avatar
2 votes
2 answers
5k views

How to output web page html source code into a file

My goal is to output an html source into a file, I'm using w3m to browse the web from terminal. When using the following command on terminal: w3m <url> -dump the program displays the web site ...
Murillo Henrique's user avatar
1 vote
1 answer
5k views

Is ctype.h installed in my system?

I am running 16.04. My C program uses isdigit(int). I get the following when I run it under gdb: `Breakpoint 1, check_tok (token=0x6f7c20 <tokens> ".t") at outline.c:150 150 unsigned char *tp=...
Alvin P. Schmitt's user avatar
2 votes
1 answer
5k views

When I run the debugger: "failed to set controlling terminal" [duplicate]

In a book I read, the author's CPU was 32-bit. Mine is 64-bit. I run the NASM assembler in the terminal with: nasm -f elf -g -F stabs asmwork/eatsyscall.asm Then I run the linker: ld -o eatsyscall ...
Pichi Wuana's user avatar
1 vote
0 answers
272 views

Port Ubuntu Touch using Windows 10 ubuntu bash

I'm trying to port Ubuntu Touch to my phone using Windows 10 bash. After many try, i stuck on building the test image for Nexus 4 to check possible it's or not. And every time after starting building: ...
Vyacheslav Stefanovich's user avatar