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-2012/03/30 - Mark Hatle <mark.hatle@windriver.com>
- - Initial Revision
-
-The ARM architecture definitions are split among a number of files.
-The primary definitions for the variables are handled by the core
-arch-arm.inc file.
-
-TUNE_ARCH is set to either "arm" or "armeb" depending on the value
-of the existence of the "bigendian" feature in a given tune.
-
-A small set of ARM specific variables have been defined to allow
-TUNE_PKGARCH to be automatically defined. Optimized tunings must NOT
-change the definiton of TUNE_PKGARCH. TUNE_PKGACH_tune-<tune> will be
-ignored. The format of the package arch is enforced by the TUNE_PKGARCH
-default. The format must be of the form:
-<armversion>[t][e][hf][b][-vfp][-neon]
-
-TUNE_PKGARCH is defined as:
-${ARMPKGARCH}${ARMPKGSFX_THUMB}${ARMPKGSFX_DSP}${ARMPKGSFX_EABI}${ARMPKGSFX_ENDIAN}${ARMPKGSFX_FPU}
-
-ARMPKGARCH - This is the core package arch component specified by each
-tuning. This is the primary identifier of a tuning. Usual values are:
-arm, armv4, armv5, armv6, armv7a, etc.
-
-ARMPKGSFX_THUMB - This is the thumb specific suffix. Curently it is
-defined in feature-arm-thumb.inc.
-
-ARMPKGSFX_DSP - This is the DSP specific suffix. Currently this is set
-to 'e' when on armv5 and the dsp feature is enabled.
-
-ARMPKGSFX_EABI - This is the eabi specific suffix. There are currently
-two defined ABIs specificed, standard EABI and Hard Float (VFP) EABI.
-When the callconvention-hard is enabled, "hf" is specified, otherwise it
-is blank.
-
-ARMPKGSFX_ENDIAN - This is the endian specific suffix. It is defined in
-the core arch-arm.inc file.
-
-ARMPKGSFX_FPU - This is the FPU specific suffix. The suffix indicates
-specific FPU optimizations. 'vfp' and 'neon' are both defined.