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Embedded Linux Projects Using Yocto Project Cookbook

You're reading from   Embedded Linux Projects Using Yocto Project Cookbook Over 70 hands-on recipes for professional embedded Linux developers to optimize and boost their Yocto know-how

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Product type Paperback
Published in Mar 2015
Publisher
ISBN-13 9781784395186
Length 324 pages
Edition 1st Edition
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Author (1):
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Alex Gonzalez Alex Gonzalez
Author Profile Icon Alex Gonzalez
Alex Gonzalez
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Toc

Table of Contents (7) Chapters Close

Preface 1. The Build System 2. The BSP Layer FREE CHAPTER 3. The Software Layer 4. Application Development 5. Debugging, Tracing, and Profiling Index

Working with GNU make


GNU make is a make implementation for Linux systems. It is used by a wide variety of open source projects, including the Linux kernel. The build is managed by a Makefile, which tells make how to build the source code.

How to do it...

Yocto recipes inherit base.bbclass and hence their default behavior is to look for a Makefile, makefile, or GNU Makefile and use GNU make to build the package.

If your package already contains a Makefile, then all you need to worry about are the arguments that need to be passed to make. Make arguments can be passed using the EXTRA_OEMAKE variable, and a do_install override that calls the oe_runmake install needs to be provided, otherwise an empty install is run.

For example, the logrotate recipe is based on a Makefile and looks as follows:

SUMMARY = "Rotates, compresses, removes and mails system log files"
SECTION = "console/utils"
HOMEPAGE = "https://fedorahosted.org/logrotate/"
LICENSE = "GPLv2"

DEPENDS="coreutils popt"

LIC_FILES_CHKSUM...
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