d8792a04ca
Xtensa is a configurable processor architecture, which allows to define additional instructions and registers. The required variant specific information for the toolchain is delivered in an 'overlay' file, which needs to be 'untarred' to the corresponding directories after the source is installed and patched. This patch provides support for binutils, gcc, and gdb with a very limited changes to the build scripts. These additions are only executed for the Xtensa architecture and have no effect on other architectures. [Thomas: rebased on top of the 'arch: improve definition of gcc mtune, mcpu, etc.' patch, and changed 'Target ABI' to 'Target Architecture Variant']. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
34 lines
870 B
Plaintext
34 lines
870 B
Plaintext
choice
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prompt "Target Architecture Variant"
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depends on BR2_xtensa
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default BR2_xtensa_fsf
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config BR2_xtensa_custom
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bool "Custom Xtensa processor configuration"
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config BR2_xtensa_fsf
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bool "fsf - Default configuration"
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endchoice
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config BR2_xtensa_custom_name
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string "Custom Xtensa processor configuration anme"
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depends on BR2_xtensa_custom
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default ""
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help
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Name given to a custom Xtensa processor configuration.
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config BR2_xtensa_core_name
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string
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default BR2_xtensa_custom_name if BR2_xtensa_custom
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default "" if BR2_xtensa_fsf
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config BR2_xtensa_overlay_dir
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string "Overlay directory for custom configuration"
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depends on BR2_xtensa_custom
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default ""
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help
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Provide a directory path that contains the overlay files
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for the custom configuration. The path is based on the
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buildroot top directory.
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config BR2_ARCH
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default "xtensa" if BR2_xtensa
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