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GCC has the ability to pass extensions to the march parameter, which expand the funcationality of the march. For example "-march=armv7ve+simd" adds SIMD to ARMv7. Currently, there is no way to expand the march setting without modifying each instance, as you can't guarantee the ordering when using the existing TUNE_CCARGS. By introducing two new variables, TUNE_CCARGS_MARCH and TUNE_CCARGS_MARCH_OPT, we can enforce that these two go together. Also, expand existing and create new feature files that use these variables to expand the functionality. (From OE-Core rev: 794eb617bfd1997e7a3498812c63a20c58a10554) Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
18 lines
596 B
HTML
18 lines
596 B
HTML
#
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# Defaults for ARMv7-m
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#
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DEFAULTTUNE ?= "armv7m"
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TUNEVALID[armv7m] = "Enable instructions for ARMv7-m"
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TUNE_CCARGS_MARCH .= "${@bb.utils.contains('TUNE_FEATURES', 'armv7m', ' -march=armv7-m', '', d)}"
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MACHINEOVERRIDES =. "${@bb.utils.contains('TUNE_FEATURES', 'armv7m', 'armv7m:', '', d)}"
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TUNECONFLICTS[armv7m] = "armv4 armv5 armv6 armv7a"
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require conf/machine/include/arm/arch-armv6m.inc
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AVAILTUNES += "armv7m"
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ARMPKGARCH:tune-armv7m = "armv7m"
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TUNE_FEATURES:tune-armv7m = "armv7m"
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PACKAGE_EXTRA_ARCHS:tune-armv7m = "armv7m"
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