kumquat-buildroot/arch/Config.in.xtensa
Yann E. MORIN b3b6070622 arch/xtensa: allow specifying path to tarball file
currently, specifying a custom Xtrensa core is done with two variables:
  - the core name
  - the directory containing the overlay tarball

However, the core name only serves to construct the tarball name, and is
not used whatsoever to configure any of the toolchain components
(binutils, gcc or gdb), except through the files that are overlayed in
their respective source trees.

This has two main drawbacks:
  - the overlay file must be named after the core,
  - the tarball can not be compressed.

Furthermore, it also makes it extremely complex to implement a download
of that tarball.

So, those two variables can be squeezed into a single variable, that is
the complete path of the overlay tarball.

Update the qemu-xtensa defconfig accordingly.

Note: we do not add a legacy entry for BR2_XTENSA_CORE_NAME, since it
was previously a blind option in the last release, and there's been no
release since we removed BR2_XTENSA_CUSTOM_NAME. So, we just update the
legacy comments for BR2_XTENSA_CUSTOM_NAME, since that's all the user
could have seen in any of our releases so far.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-09 15:41:51 +02:00

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choice
prompt "Target Architecture Variant"
depends on BR2_xtensa
default BR2_xtensa_fsf
config BR2_XTENSA_CUSTOM
select BR2_ARCH_HAS_MMU_OPTIONAL
bool "Custom Xtensa processor configuration"
config BR2_xtensa_fsf
select BR2_ARCH_HAS_MMU_MANDATORY
bool "fsf - Default configuration"
endchoice
config BR2_XTENSA_OVERLAY_FILE
string "Overlay file for custom configuration"
depends on BR2_XTENSA_CUSTOM
help
Enter the path to the overlay tarball for a custom processor
configuration.
These overlay files are tar packages with updated configuration
files for various toolchain packages and Xtensa processor
configurations. They are provided by the processor vendor or
directly from Tensilica.
The path can be either absolute, or relative to the top directory
of buildroot.
choice
prompt "Target Architecture Endianness"
depends on BR2_XTENSA_CUSTOM
default BR2_XTENSA_LITTLE_ENDIAN
config BR2_XTENSA_LITTLE_ENDIAN
bool "Little endian"
config BR2_XTENSA_BIG_ENDIAN
bool "Big endian"
endchoice
config BR2_ENDIAN
default "LITTLE" if BR2_XTENSA_LITTLE_ENDIAN
default "BIG" if BR2_xtensa_fsf || BR2_XTENSA_BIG_ENDIAN
config BR2_ARCH
default "xtensa" if BR2_xtensa
config BR2_READELF_ARCH_NAME
default "Tensilica Xtensa Processor"