CONFIG_EXTRA_TARGETS is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
Additional default image types
configname: CONFIG_EXTRA_TARGETS
Linux Kernel Configuration
└─>Kernel options
└─>Additional default image types
In linux kernel since version 2.6.27 (release Date: 2008-10-09)
List additional targets to be built by the bootwrapper here (separated
by spaces). This is useful for targets that depend of device tree
files in the .dts directory.
Targets in this list will be build as part of the default build
target, or when the user does a 'make zImage' or a
'make zImage.initrd'.
If unsure, leave blank
by spaces). This is useful for targets that depend of device tree
files in the .dts directory.
Targets in this list will be build as part of the default build
target, or when the user does a 'make zImage' or a
'make zImage.initrd'.
If unsure, leave blank