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Arcom Embedded Linux Technical Manual Developing software for AEL

Building the kernel

Once the kernel has been configured it can be built using the ael-kernel-build tool. This

tool builds the kernel and associated modules, as well as any packaged external kernel

modules, as required.

The basic invocation of the ael-kernel-build utility is as follows:

ael-kernel-build [OPTIONS]… <TARGETS>

The possible TARGETs are described in the following table. In most cases, you use

image to build a kernel image and the in-tree modules, and perhaps modules to build

any external (out-of-tree) modules.

Target Description

image

Builds a package containing a kernel image and modules.

clean

Cleans the kernel build tree.

modules

Builds packages for any external modules. See Building

external modules

, below, for details.

modules-clean

Cleans the build trees for any external modules that have

been built.

The main OPTIONS that you can specify when using ael-kernel-build are explained in

the following table:

Option Description

--architecture=ARCH

Required. Specifies the target architecture to build the

kernel for. Use one of the target architecture names from

the table below.

--revision=REVISION

Specifies the version number to be used in the packages

that are created. This is typically a single integer or a word

combined with an integer, for example ‘1’ or ‘customer.1’.

The numeric part of the revision should be incremented

with each release.

The architectures for which you can build the kernel are listed in the following table:

Processor architecture Target architecture name Example processors

Intel x86

i386

AMD SC520, AMD Geode GX1

ARM and XScale

(little-endian)

arm Intel PXA255

ARM and XScale

(big-endian)

armbe Intel IXP425

For more information on ael-kernel-build and the available options and targets, consult

the ael-kernel-build(1) man page.

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