docs/getting_started/prerequisites.rst - chromiumos/third_party/arm-trusted-firmware - Git at Google

 Prerequisites
 =============

 This document describes the software requirements for building |TF-A| for
 AArch32 and AArch64 target platforms.

 It may possible to build |TF-A| with combinations of software packages that are
 different from those listed below, however only the software described in this
 document can be officially supported.

 Build Host
 ----------

 |TF-A| can be built using either a Linux or a Windows machine as the build host.

 A relatively recent Linux distribution is recommended for building |TF-A|. We
 have performed tests using Ubuntu 16.04 LTS (64-bit) but other distributions
 should also work fine as a base, provided that the necessary tools and libraries
 can be installed.

 .. _prerequisites_toolchain:

 Toolchain
 ---------

 |TF-A| can be built with any of the following *cross-compiler* toolchains that
 target the Armv7-A or Armv8-A architectures:

 - GCC >= 10.3-2021.07 (from the `Arm Developer website`_)
 - Clang >= 4.0
 - Arm Compiler >= 6.0

 In addition, a native compiler is required to build the supporting tools.

 .. note::
    The software has also been built on Windows 7 Enterprise SP1, using CMD.EXE,
    Cygwin, and Msys (MinGW) shells, using version 5.3.1 of the GNU toolchain.

 .. note::
    For instructions on how to select the cross compiler refer to
    :ref:`Performing an Initial Build`.

 .. _prerequisites_software_and_libraries:

 Software and Libraries
 ----------------------

 The following tools are required to obtain and build |TF-A|:

 - An appropriate toolchain (see :ref:`prerequisites_toolchain`)
 - GNU Make
 - Git

 The following libraries must be available to build one or more components or
 supporting tools:

 - OpenSSL >= 1.0.1

    Required to build the cert_create tool.

 The following libraries are required for Trusted Board Boot support:

 - mbed TLS == 2.26.0 (tag: ``mbedtls-2.26.0``)

 These tools are optional:

 - Device Tree Compiler (DTC) >= 1.4.6

    Needed if you want to rebuild the provided Flattened Device Tree (FDT)
    source files (``.dts`` files). DTC is available for Linux through the package
    repositories of most distributions.

 - Arm `Development Studio 5 (DS-5)`_

    The standard software package used for debugging software on Arm development
    platforms and |FVP| models.

 - Node.js >= 16

    Highly recommended, and necessary in order to install and use the packaged
    Git hooks and helper tools. Without these tools you will need to rely on the
    CI for feedback on commit message conformance.

 Package Installation (Linux)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 If you are using the recommended Ubuntu distribution then you can install the
 required packages with the following command:

 .. code:: shell

     sudo apt install build-essential git libssl-dev

 The optional packages can be installed using:

 .. code:: shell

     sudo apt install device-tree-compiler

 Additionally, to install an up-to-date version of Node.js, you can use the `Node
 Version Manager`_ to install a version of your choosing (we recommend 16, but
 later LTS versions might offer a more stable experience):

 .. code:: shell

     curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh | "$SHELL"
     exec "$SHELL" -ic "nvm install 16; exec $SHELL"

 .. _Node Version Manager: https://github.com/nvm-sh/nvm#install--update-script

 Supporting Files
 ----------------

 TF-A has been tested with pre-built binaries and file systems from `Linaro
 Release 20.01`_. Alternatively, you can build the binaries from source using
 instructions in :ref:`Performing an Initial Build`.

 .. _prerequisites_get_source:

 Getting the TF-A Source
 -----------------------

 Source code for |TF-A| is maintained in a Git repository hosted on
 TrustedFirmware.org. To clone this repository from the server, run the following
 in your shell:

 .. code:: shell

     git clone "https://review.trustedfirmware.org/TF-A/trusted-firmware-a"

 Additional Steps for Contributors
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

 If you are planning on contributing back to TF-A, there are some things you'll
 want to know.

 TF-A is hosted by a `Gerrit Code Review`_ server. Gerrit requires that all
 commits include a ``Change-Id`` footer, and this footer is typically
 automatically generated by a Git hook installed by you, the developer.

 If you have Node.js installed already, you can automatically install this hook,
 along with any additional hooks and Javascript-based tooling that we use, by
 running from within your newly-cloned repository:

 .. code:: shell

     npm install --no-save

 If you have opted **not** to install Node.js, you can install the Gerrit hook
 manually by running:

 .. code:: shell

     curl -Lo $(git rev-parse --git-dir)/hooks/commit-msg https://review.trustedfirmware.org/tools/hooks/commit-msg
     chmod +x $(git rev-parse --git-dir)/hooks/commit-msg

 You can read more about Git hooks in the *githooks* page of the Git
 documentation, available `here <https://git-scm.com/docs/githooks>`_.

 --------------

 *Copyright (c) 2021, Arm Limited. All rights reserved.*

 .. _Arm Developer website: https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads
 .. _Gerrit Code Review: https://www.gerritcodereview.com/
 .. _Linaro Release Notes: https://community.arm.com/dev-platforms/w/docs/226/old-release-notes
 .. _Linaro instructions: https://community.arm.com/dev-platforms/w/docs/304/arm-reference-platforms-deliverables
 .. _Development Studio 5 (DS-5): https://developer.arm.com/products/software-development-tools/ds-5-development-studio
 .. _Linaro Release 20.01: http://releases.linaro.org/members/arm/platforms/20.01
	Prerequisites
	=============

	This document describes the software requirements for building \|TF-A\| for
	AArch32 and AArch64 target platforms.

	It may possible to build \|TF-A\| with combinations of software packages that are
	different from those listed below, however only the software described in this
	document can be officially supported.

	Build Host
	----------

	\|TF-A\| can be built using either a Linux or a Windows machine as the build host.

	A relatively recent Linux distribution is recommended for building \|TF-A\|. We
	have performed tests using Ubuntu 16.04 LTS (64-bit) but other distributions
	should also work fine as a base, provided that the necessary tools and libraries
	can be installed.

	.. _prerequisites_toolchain:

	Toolchain
	---------

	\|TF-A\| can be built with any of the following cross-compiler toolchains that
	target the Armv7-A or Armv8-A architectures:

	- GCC >= 10.3-2021.07 (from the `Arm Developer website`_)
	- Clang >= 4.0
	- Arm Compiler >= 6.0

	In addition, a native compiler is required to build the supporting tools.

	.. note::
	The software has also been built on Windows 7 Enterprise SP1, using CMD.EXE,
	Cygwin, and Msys (MinGW) shells, using version 5.3.1 of the GNU toolchain.

	.. note::
	For instructions on how to select the cross compiler refer to
	:ref:`Performing an Initial Build`.

	.. _prerequisites_software_and_libraries:

	Software and Libraries
	----------------------

	The following tools are required to obtain and build \|TF-A\|:

	- An appropriate toolchain (see :ref:`prerequisites_toolchain`)
	- GNU Make
	- Git

	The following libraries must be available to build one or more components or
	supporting tools:

	- OpenSSL >= 1.0.1

	Required to build the cert_create tool.

	The following libraries are required for Trusted Board Boot support:

	- mbed TLS == 2.26.0 (tag: ``mbedtls-2.26.0``)

	These tools are optional:

	- Device Tree Compiler (DTC) >= 1.4.6

	Needed if you want to rebuild the provided Flattened Device Tree (FDT)
	source files (``.dts`` files). DTC is available for Linux through the package
	repositories of most distributions.

	- Arm `Development Studio 5 (DS-5)`_

	The standard software package used for debugging software on Arm development
	platforms and \|FVP\| models.

	- Node.js >= 16

	Highly recommended, and necessary in order to install and use the packaged
	Git hooks and helper tools. Without these tools you will need to rely on the
	CI for feedback on commit message conformance.

	Package Installation (Linux)
	^^^^^^^^^^^^^^^^^^^^^^^^^^^^

	If you are using the recommended Ubuntu distribution then you can install the
	required packages with the following command:

	.. code:: shell

	sudo apt install build-essential git libssl-dev

	The optional packages can be installed using:

	.. code:: shell

	sudo apt install device-tree-compiler

	Additionally, to install an up-to-date version of Node.js, you can use the `Node
	Version Manager`_ to install a version of your choosing (we recommend 16, but
	later LTS versions might offer a more stable experience):

	.. code:: shell

	curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh \| "$SHELL"
	exec "$SHELL" -ic "nvm install 16; exec $SHELL"

	.. _Node Version Manager: https://github.com/nvm-sh/nvm#install--update-script

	Supporting Files
	----------------

	TF-A has been tested with pre-built binaries and file systems from `Linaro
	Release 20.01`_. Alternatively, you can build the binaries from source using
	instructions in :ref:`Performing an Initial Build`.

	.. _prerequisites_get_source:

	Getting the TF-A Source
	-----------------------

	Source code for \|TF-A\| is maintained in a Git repository hosted on
	TrustedFirmware.org. To clone this repository from the server, run the following
	in your shell:

	.. code:: shell

	git clone "https://review.trustedfirmware.org/TF-A/trusted-firmware-a"

	Additional Steps for Contributors
	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

	If you are planning on contributing back to TF-A, there are some things you'll
	want to know.

	TF-A is hosted by a `Gerrit Code Review`_ server. Gerrit requires that all
	commits include a ``Change-Id`` footer, and this footer is typically
	automatically generated by a Git hook installed by you, the developer.

	If you have Node.js installed already, you can automatically install this hook,
	along with any additional hooks and Javascript-based tooling that we use, by
	running from within your newly-cloned repository:

	.. code:: shell

	npm install --no-save

	If you have opted not to install Node.js, you can install the Gerrit hook
	manually by running:

	.. code:: shell

	curl -Lo $(git rev-parse --git-dir)/hooks/commit-msg https://review.trustedfirmware.org/tools/hooks/commit-msg
	chmod +x $(git rev-parse --git-dir)/hooks/commit-msg

	You can read more about Git hooks in the githooks page of the Git
	documentation, available `here <https://git-scm.com/docs/githooks>`_.

	--------------

	Copyright (c) 2021, Arm Limited. All rights reserved.

	.. _Arm Developer website: https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads
	.. _Gerrit Code Review: https://www.gerritcodereview.com/
	.. _Linaro Release Notes: https://community.arm.com/dev-platforms/w/docs/226/old-release-notes
	.. _Linaro instructions: https://community.arm.com/dev-platforms/w/docs/304/arm-reference-platforms-deliverables
	.. _Development Studio 5 (DS-5): https://developer.arm.com/products/software-development-tools/ds-5-development-studio
	.. _Linaro Release 20.01: http://releases.linaro.org/members/arm/platforms/20.01