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I’ve now managed to successfully build an Angstrom Linux console image and cross gcc tool chain for the ARM Cortex-A9 CPU found on some newer SoC boards. Although unfortunately I’ve not yet had a chance to test this image yet as I’m waiting on the delivery of my new Cortex A9 hardware.

The angstrom-2008.1.conf binutils, gcc and glibc versions used are

PREFERRED_VERSION_glibc ?= "2.10.1"
PREFERRED_VERSION_glibc-initial ?= "2.10.1"
ANGSTROM_GCC_VERSION_armv7a ?= "4.4.2"

Whilst the CPU tuning for Cortex A9 is

# Instead of using -mfpu=vfp[2] we can use -mfpu=neon to make use of gcc intrinsics[1] and vectorize loops with -ftree-vectorize[3]
# [1]
# [2]
# [3]

TARGET_CC_ARCH = "-march=armv7-a -mtune=cortex-a9 -mfpu=neon -mfloat-abi=softfp"
FEED_ARCH = "armv7a"
PACKAGE_EXTRA_ARCHS += "armv4 armv4t armv5te armv6 armv7 armv7a"

All the Openembedded files required to build this too chain and image are available via git in the SlimLogic OE omap4 branch.

The repository URL is git:// for anyone interested in adding it as a remote.