How to build an x32 linux image
1. Add this meta-x32 layer to your build layer config file
conf/bblayers.conf
2. Add these lines to your conf/local.conf:
MACHINE = "qemux86-64"
DEFAULTTUNE = "x86-64-x32"
baselib = "${@d.getVar('BASE_LIB_tune-' + (d.getVar('DEFAULTTUNE', True) or
'INVALID'), True) or 'lib'}"
3. build
bitbake core-image-minimal-x32
4. boot the image
runqemu qemux86-64 core-image-minimal-x32
5. after looging into the image verify that the executables & libraries are x32
file /bin/busybox
file /libx32/libc.so.*
If file command should reports that binaries are one of these types
"ELF 32-bit LSB executable, x86-64"
"ELF 32-bit LSB shared onject, x86-64"
Nitin A Kamble <nitin.a.kamble@intel.com>
2011-10-10