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pigweed / third_party / github / FreeRTOS / FreeRTOS-Kernel / 4383c8fae30c8a44c9fe07b7cef3b86f0c5cd72b
commit4383c8fae30c8a44c9fe07b7cef3b86f0c5cd72b[log] [tgz]
authorGaurav-Aggarwal-AWS <33462878+aggarg@users.noreply.github.com>Thu Jul 30 19:32:31 2020 -0700
committerGitHub <noreply@github.com>Thu Jul 30 19:32:31 2020 -0700
tree5e96aaeaa7184dee9b169056a885a33ad65e0487
parent676d99e302e75342a0645232eef16ed536c98434 [diff]
Change the xRunningPrivileged check from "!=true" to "==false" (#109)

The expected behaviour of portIS_PRIVILEGED is:
- return 0 if the processor is not running privileged.
- return 1 if the processor is running privileged.

Some TI ports do not return 1 when the processor is running privileged
causing the following check to fail: if( xRunningPrivileged != pdTRUE )

This commit change the check to: if( xRunningPrivileged == pdFALSE ). It
ensures that the check is successful even on the ports which return incorrect
value from portIS_PRIVILEGED when the processor is running privileged.

See https://forums.freertos.org/t/kernel-bug-nested-mpu-wrapper-calls-generate-an-exception/10391

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
1 file changed
tree: 5e96aaeaa7184dee9b169056a885a33ad65e0487
  1. .github/
  2. include/
  3. portable/
  4. CONTRIBUTING.md
  5. croutine.c
  6. event_groups.c
  7. GitHub-FreeRTOS-Kernel-Home.url
  8. History.txt
  9. LICENSE.md
  10. list.c
  11. queue.c
  12. Quick_Start_Guide.url
  13. README.md
  14. SECURITY.md
  15. stream_buffer.c
  16. tasks.c
  17. timers.c
README.md

Getting started

This repository contains FreeRTOS kernel source/header files and kernel ports only. This repository is referenced as a submodule in FreeRTOS/FreeRTOS repository, which contains pre-configured demo application projects under FreeRTOS/Demo directory.

The easiest way to use FreeRTOS is to start with one of the pre-configured demo application projects. That way you will have the correct FreeRTOS source files included, and the correct include paths configured. Once a demo application is building and executing you can remove the demo application files, and start to add in your own application source files. See the FreeRTOS Kernel Quick Start Guide for detailed instructions and other useful links.

Additionally, for FreeRTOS kernel feature information refer to the Developer Documentation, and API Reference.

Getting help

If you have any questions or need assistance troubleshooting your FreeRTOS project, we have an active community that can help on the FreeRTOS Community Support Forum.

Cloning this repository

To clone using HTTPS:

git clone https://github.com/FreeRTOS/FreeRTOS-Kernel.git

Using SSH:

git clone git@github.com:FreeRTOS/FreeRTOS-Kernel.git

Repository structure

  • The root of this repository contains the three files that are common to every port - list.c, queue.c and tasks.c. The kernel is contained within these three files. croutine.c implements the optional co-routine functionality - which is normally only used on very memory limited systems.

  • The ./portable directory contains the files that are specific to a particular microcontroller and/or compiler. See the readme file in the ./portable directory for more information.

  • The ./include directory contains the real time kernel header files.

Code Formatting

FreeRTOS files are formatted using the “uncrustify” tool. The configuration file used by uncrustify can be found in the FreeRTOS/FreeRTOS repository.