CSCI5103_Project4

Project 4 - Linux Device Drivers

• Bryan Baker - [email protected]
• Alice Anderegg - [email protected]
• Hailin Archer - [email protected]

How To Run

To make the module and the test files, insert the module, run the default tests, and remove the module, run:

chmod +x buildandrun.sh
./buildandrun.sh

Enter password for sudo if required.

The default test will run prodcons at three levels:

• 1 producer and 1 consumer each producing/consuming 1 item
• 10 producers and 10 consumers each producing/consuming 10 items
• 100 producers and 100 consumers each producing/consuming 100 items

Logs are deposited in 'test/prodcons_run1', 'test/prodcons_run10', and 'test/prodcons_run100 '.

To run further tests, from the test directory run:

 ./prodcons [# of producers] [# of producer items] [# of consumers] [# of consumer items]

The logs will appear in the test directory.

Updates done to the VM to enable initial builds

• Created a soft link to the correct arch folder

sudo ln -s /lib/modules/4.15.0-72-generic/build/arch/arm64/include/asm /lib/modules/4.15.0-72-generic/build/include/asm

• Updated scullBuffer.h to use <asm/switch_to.h> rather than <asm/system.h>

• Updated scullBuffer.h to use <linux/uaccess.h> rather than <asm/uaccess.h>

• Updated scullBuffer.c to use raw_copy_from_user rather than copy_from_user

• Updated scullBuffer.c to use raw_copy_to_user rather than copy_to_user

• Installed Python:

sudo apt-get python

• Installed and configured git:

sudo install git
git config --global http.proxy http://proxy.cselabs.umn.edu:8888
git config --global https.proxy https://proxy.cselabs.umn.edu:8888