forked from Imagelibrary/rtems
1ce89bdf14
Ensure that the alias found matches the device tree specification v0.4:
Each property of the /aliases node defines an alias. The property
name specifies the alias name. The property value specifies the full
path to a node in the devicetree.
This protects against a stack overflow caused by
fdt_path_offset_namelen(fdt, path, namelen)
calling
fdt_path_offset(fdt, fdt_get_alias_namelen(fdt, path, namelen))
leading to infinite recursion on DTs with "circular" aliases.
This fix was originally written by Mike McTernan for Android in [1].
[1]: 9308e7f977
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
Acked-by: Mike McTernan <mikemcternan@google.com>
Message-ID: <20231010092725.63h7c45p2fnmj577@google.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Real-Time Executive for Multiprocessing Systems
RTEMS is a real-time executive (kernel) which provides a high performance environment for embedded applications with the following features:
- Standards based user interfaces.
- Multitasking capabilities.
- Homogeneous and heterogeneous multiprocessor systems.
- Event-driven, priority-based, preemptive scheduling.
- Optional rate monotonic scheduling.
- Intertask communication and synchronisation.
- Priority inheritance.
- Responsive interrupt management.
- Dynamic memory allocation.
- High level of user configurability.
- Open source with a friendly user license.
Project git repositories are located at:
Online documentation is available at:
RTEMS Doxygen for CPUKit:
RTEMS POSIX 1003.1 Compliance Guide:
RTEMS Mailing Lists for general purpose use the users list and for developers use the devel list.
The version number for this software is indicated in the VERSION file.