DVSDK 3.10 Makefile usage

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Purpose

The DVSDK make system helps users build and install images for different components and platforms. This page describes some of the features and usages of the DVSDK 3.10 main Makefile found in the dvsdk_3_10_##_## directory.

Common usage

The help command provides a complete overview of the make features supported in the release

host $ make help

The DVSDK makefile uses paths for each component set in Rules.make. If the paths in this file are not correct for a particular component, edit the file to correct the paths to that component. The following command check if the paths in Rules.make are correct

host $ make check

The DVSDK component version information can be obtained from

host $ make info

All DVSDK components, except psp_examples, can be cleaned using

host $ make clobber

All DVSDK components, except psp_examples, can be built using

host $ make everything

All DVSDK components required to build the included demonstration applications (except for the Linux kernel) can be cleaned and built with commands

host $ make clean
host $ make

To install the included demonstration applications and other supported files, use the command

host $ make install

Note: The value of EXEC_DIR variable in Rules.make is used as installation directory.

Building Linux kernel

The following command builds the Linux kernel

host $ make linux

Note: The path to uImage will be provided at the end of the build stage.

Use the following command to make changes in the Linux configuration (using menuconfig)

host $ make linux MENUCONFIG=true

This command will open a menuconfig editor and allow you to change kernel configurations.

Note: make does not change .config if already present. Thus, if the kernel configuration has changed, the MENUCONFIG=true option needs to be provided the next time you build; the exception is if it needs to be changed or the configuration needs to be viewed.

The Linux kernel can be cleaned (including .config) using following command

host $ make linux_clean

Building individual components

The make system provides options to clean, build, or install some of the individual components; consult make help for further details.

host $ make dmai_clean
host $ make dmai
host $ make dmai_install

Some of the components support VERBOSE=true flag. If this flag is used, the make system will display the complete commands that were run for the build.

host $ make dmai VERBOSE=true

Building PSP examples

This version of DVSDK does not require PSP examples to be installed during installation process. If you need to build PSP examples do the following

1) Download examples-davinci.tar.gz from the DVSDK 3.10 download page and untar it in the host to the components installation directory (e.g., /home/user/dvsdk)

host $ tar -xzf examples-davinci.tar.gz -C /home/user/dvsdk

It will untar to a directory /home/user/dvsdk/examples-r37

2) Edit Rules.make, line LINUXEXAMPLES_INSTALL_DIR=$(DVSDK_INSTALL_DIR)/../examples-r37 so that it points to right directory (e.g., /home/user/dvsdk/examples-r37 in above case).

3) To clean, build, and install the PSP examples use following commands

host $ make psp_examples_clean
host $ make psp_examples
host $ make psp_examples_install

Building/Generating Kernel Modules (KOs)

The make system provides options to clean and build individual kernel modules; consult make help for further details. All the KOs can be build using below command.

1) Build cmemk

host $ make cmem_clean   
host $ make cmem		/* Build cmemk.ko */

2) Build edmak

host $ make edmak_clean
host $ make edmak		/* Build edmak.ko */

3) Build irqk

host $ make irqk_clean
host $ make irqk		/* Build irqk.ko */

4) Build dmammapk

host $ make dmammapk_clean
host $ make dmammapk		/*  Build dmammapk kernel module e.g dm365mmap.ko */

Note: Kernel Modules (KOs) can be found under $(DVSDK_INSTALL_DIR)/kernel_binaries/$(PLATFORM) directory.

For technical support please post your questions at http://e2e.ti.com. Please post only comments about the article DVSDK 3.10 Makefile usage here.