Files
poky/meta/conf/machine/include/arm
Martin Jansa 4257e91cc5 arch-armv4.inc: add --fix-v4bx to TARGET_LD_KERNEL_ARCH only for armv4 and strongarm1100
* without this patch it does apply --fix-v4bx not only to armv4, but
  also all higher (because they also have armv4 in TUNE_FEATURES)
* it causes SIGILL on armv4t
  http://lists.linuxtogo.org/pipermail/openembedded-devel/2012-November/042298.html
* someone please test on armv4 device (I tested only bitbake -e output
  that it's correctly applied with DEFAULTTUNE == armv4
* maybe we can should fix this in binutils instead (both 2.22 and 2.23
  are affected)

(From OE-Core rev: 1691ff86c8aefd3c193ae9a2cdd998c7dc6d3270)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-02-14 15:19:52 +00:00
..

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- will be ignored. The format of the package arch is enforced by the TUNE_PKGARCH default. The format must be of the form: [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.