When the root parameter in find_executable_full is set, chase_symlinks prefixes this root to every check of the path name to find the complete path of the execuatble in case the path provided is not absolute. This is only done for the non NULL root because otherwise the chase_symlinks function would alter the behavior of some of the callers which would in turn alter the outputs in a way that is undesirable. The find_execuatble_full function is invoked by the verify_executable function in analyze-verify.
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list or join our IRC channel.
Stable branches with backported patches are available in the stable repo.
