config/arch/s390.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
parent 2444 896cb0d36c1a
child 3150 1d6fd9bde73c
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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# s390 specific config options
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## depends on EXPERIMENTAL
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##
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## select ARCH_SUPPORTS_32
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## select ARCH_SUPPORTS_64
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## select ARCH_DEFAULT_32
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## select ARCH_USE_MMU
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## select ARCH_SUPPORTS_WITH_FPU
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##
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## help Defined by IBM in:
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## help     32-bit ESA/390       : http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/dz9ar008/CCONTENTS
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## help     64-bit z/Architecure : http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/dz9zr002/CCONTENTS