> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Debug tools

`packagegroup-core-tools-debug` defined in the `<workspace>/layers/poky/meta` directory adds debug tools as part of `rootfs`. The `<workspace>/layers/meta-qcom-hwe/recipes-devtools` directory contains the appended package group recipe as `packagegroup-core-tools-debug.bbappend`. This append file adds `ltrace`, `perf`, `sysstat`, and `valgrind` tools to this package group. For more information, see [Debug Linux user space issues](https://dragonwingdocs.qualcomm.com/System/Debug-Subsystem/Debug%20linux%20userspace%20issues).

## **Next steps**

* For debug build configuration, see [Create a build for debugging](./create-a-build-for-debugging).
* For general Yocto build debugging, see [Debugging Yocto builds](./debug).