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Add framework to let make automatically pick optimized asm implementations over generic C ones to firmware.

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Example: for a file asm/foo.c, make will look for asm/arm/foo.[cS] and
compile it if found. If not found it'll fall back to asm/foo.c.

Also introduce new ARCH make variable. This is automatically detected by
configure. It is distinct from CPU since CPU defines the dir used for
the target tree (i.e. firmware/target/X, so it can be "hosted").
ARCH really has the target isa and can be x86 for sims/raaa too.

Change-Id: I18e5d2b7b7bbc2ad2be551a74a0fcae5ffbcbf8b
This commit is contained in:
Thomas Martitz 2012-01-07 19:49:02 +01:00
parent 3c17f28eca
commit 8e8e978de6
4 changed files with 63 additions and 2 deletions
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