1.4. Installing tools for debugging applications

To analyze and troubleshoot internal application behavior, {ProductName} offers multiple debugging and instrumentation tools.

Prerequisites

Procedure

Install the tools for debugging:

# dnf install gdb valgrind systemtap ltrace strace

Install the dnf-utils package to use the debuginfo-install tool:
```
# dnf install dnf-utils
```
Run a SystemTap helper script to prepare the environment:
```
# stap-prep
```
Note that stap-prep installs packages relevant to the currently running kernel, which might not be the same as the installed kernel. To ensure stap-prep installs the correct kernel-debuginfo and kernel-headers packages, double-check the current kernel version by using the uname -r command and reboot your system if necessary.
Make sure SELinux policies allow the relevant applications to run not only normally, but in the debugging situations, too. For more information, see Using SELinux.

Additional resources