UM1535 datasheet(20/39 Pages) STMICROELECTRONICS

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The STLinux distribution

UM1535

20/39

Doc ID 023036 Rev 2

The STLinux distribution

3.1

Overview

The STLinux distribution provides all the host-side (PC) and target-side (evaluation board)

software components enabling system designers to develop their own applications for

SPEAr-based platforms, as well as customize the various aspects of the embedded

software architecture.

The components can be summarized as follows:

●

Command-line cross-development toolchain (compiler, linker, building tools, etc.),

running on a Linux x86 PC

●

Graphical IDE (ST Workbench), running on a Linux x86 PC

●

Software for incremental online update of STLinux distribution components

●

A set of open source user-space ARM packages (programs and runtime libraries) to be

promptly reused in root file systems as support to specific applications. The root file

system also provides compiler, linker and so on for compiling applications on target

boards.

●

Linux kernel (2.6.37 or higher), configurable for the different SPEAr evaluation boards;

it includes BSP/device drivers for the SPEAr hardware features

●

U-Boot boot loader, with added support for SPEAr evaluation boards

●

XLoader firmware, configurable for the different SPEAr evaluation boards

Most distribution components are also available as source code (SRPM files).

Full details about STLinux components are reported in other specific documents.

3.2

Host PC requirements

The STLinux-2.4 distribution is supported on Fedora 6 and later and Redhat Enterprise 4

and later.

STLinux-2.4 is not officially supported on Ubuntu. The guide for installing on an Ubuntu

machine is available at following link:

http://www.stlinux.com/install/ubuntu

3.3

The stmyum tool

Yum is an automatic updater and package installer/remover for RPM Linux host systems

(like Fedora). It automatically computes dependencies and figures out the procedure for

installing packages.

Yum has a number of advantages over using RPM directly:

●

automatic updates of installed packages

●

automatic checks for newly available and updated packages

●

all dependent packages are installed automatically for each package installed

●

groups of packages can be installed as a single unit

●

increased security as all packages are signed

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