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You're reading from  Embedded Linux Development using Yocto Projects - Second Edition

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Published inNov 2017
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ISBN-139781788470469
Edition2nd Edition
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Authors (2):
Otavio Salvador
Otavio Salvador
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Otavio Salvador

Otavio Salvador loves technology and started his free software activities in 1999. In 2002, he founded O.S. Systems, a company focused on embedded system development services and consultancy worldwide, creating and maintaining customized BSPs, and helping companies with their product developments challenges. This resulted in his joining the OpenEmbedded community in 2008, when he became an active contributor to the OpenEmbedded project.
Read more about Otavio Salvador

Daiane Angolini
Daiane Angolini
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Daiane Angolini

Daiane Angolini has been working with embedded Linux since 2008. She has been working as an application engineer at NXP, acting on internal development, porting custom applications from Android, and on-site customer support for i.MX architectures in areas such as the Linux kernel, u-boot, Android, Yocto Project, and user-space applications. However, it was on the Yocto Project that she found her place.
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Understanding the work directory


The build/tmp/work directory is organized by architecture. For example, when working with the machine qemuarm, we have the following four directories:

  • all-poky-linux
  • armv5te-poky-linux-gnueabi
  • qemuarm-poky-linux-gnueabi
  • x86_64-linux

The directories found here and their contents are architecture and machine dependent. We shouldn't take this as a final list, only as an illustration. The x86_64-linuxdirectoryis used to build the host sysroot content, which is detailed in the next section. Theall-poky-linuxdirectoryholds the working build directories for the packages that are architecture agnostic. This fragmented structure is necessary to allow the building of multiple machines and architectures within one build directory, without conflicting with each other.

The target machine we use is qemuarm. This machine is an emulation of the ARM Versatile Platform Baseboard with the ARM926EJ-S CPU emulation that supports the ARMv5TE instructions. Poky treats qemuarm as a type...

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Embedded Linux Development using Yocto Projects - Second Edition
Published in: Nov 2017Publisher: ISBN-13: 9781788470469

Authors (2)

author image
Otavio Salvador

Otavio Salvador loves technology and started his free software activities in 1999. In 2002, he founded O.S. Systems, a company focused on embedded system development services and consultancy worldwide, creating and maintaining customized BSPs, and helping companies with their product developments challenges. This resulted in his joining the OpenEmbedded community in 2008, when he became an active contributor to the OpenEmbedded project.
Read more about Otavio Salvador

author image
Daiane Angolini

Daiane Angolini has been working with embedded Linux since 2008. She has been working as an application engineer at NXP, acting on internal development, porting custom applications from Android, and on-site customer support for i.MX architectures in areas such as the Linux kernel, u-boot, Android, Yocto Project, and user-space applications. However, it was on the Yocto Project that she found her place.
Read more about Daiane Angolini