UM1535 datasheet(25/39 Pages) STMICROELECTRONICS

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UM1535

Working at application level (userland)

Doc ID 023036 Rev 2

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The provided toolchain is based on the widely adopted open source GNU toolset. A

summary of the main available command-line tools is reported in Table 1. For detailed

documentation please consult the GNU Web site: http://www.gnu.org/manual/manual.html.

4.3

Userland packages

The general STLinux distribution comes with a set of user-space packages prebuilt for the

ARM target. This set includes programs and libraries for:

●

Graphics: for example, X Server, SDL, Cairo, DirectFB, GTK+, Qt Embedded

●

Programming language runtimes: for example, micro Perl

●

Connectivity: for example, usblib, Bluetooth (Bluez)

●

Multimedia frameworks: for example, ALSA, GStreamer

●

Database: for example, sqlite

●

Benchmarking tools: for example, IOZONE, netperf

Some of these packages are not supported on SPEAr evaluation boards yet, in particular

ones requiring specific hardware for audio, video, wireless connectivity.

4.4

Rebuilding the root file system

The default root file system provided as pre-flashed on all SPEAr evaluation boards, as well

as binary image on ST Web site for upgrades, is built for serial NOR Flash and formatted

according to JFFS2 structure.

In order to rebuild this configuration, the procedure to be run on Linux host PC is as follows:

Table 1.

Main toolchain commands

Package

Tool

Description

GCC

Gcc

C Cross-compiler for ARM

Gcov

Code coverage

binutils

Archiver

Cross-assembler for ARM

Gprof

Profiling tool

Cross-linker for ARM

Lists symbols in object files

Objcopy

Copies a binary file.

Objdump

Displays information from object files.

Ranlib

Generates an index to speed access to archives.

Readelf

Displays the information about the contents of ELF format files

Rtrip

Removes symbols and sections from files

GNU Make

Make

Incremental build management

GDB

Gdb

Debugger

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