diff options
author | Patrick Williams <patrick@stwcx.xyz> | 2015-09-15 22:41:29 +0300 |
---|---|---|
committer | Patrick Williams <patrick@stwcx.xyz> | 2015-09-15 22:41:29 +0300 |
commit | 21f9b84b4b729fbd7acbd465e7a3f726e4d20f91 (patch) | |
tree | eb2d091d427ca0813b445509d59cc8e27e8ad25f /yocto-poky/meta/conf/machine/include/arm/README | |
parent | 101cef31e2bf54c678501155cd2106251acbd076 (diff) | |
parent | c124f4f2e04dca16a428a76c89677328bc7bf908 (diff) | |
download | openbmc-21f9b84b4b729fbd7acbd465e7a3f726e4d20f91.tar.xz |
Merge commit 'c124f4f2e04dca16a428a76c89677328bc7bf908' as 'yocto-poky'
Diffstat (limited to 'yocto-poky/meta/conf/machine/include/arm/README')
-rw-r--r-- | yocto-poky/meta/conf/machine/include/arm/README | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/yocto-poky/meta/conf/machine/include/arm/README b/yocto-poky/meta/conf/machine/include/arm/README new file mode 100644 index 000000000..a1beb75fd --- /dev/null +++ b/yocto-poky/meta/conf/machine/include/arm/README @@ -0,0 +1,40 @@ +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. |