Add SPE extensions support for PowerPC (after a work by Thomas JOURDAN).
Add a PowerPC sample that supports SPE extensions.

/trunk/arch/powerpc/functions | 13 13 0 0 +
/trunk/arch/powerpc/config.in | 8 8 0 0 +
/trunk/patches/gcc/4.3.1/340-make-mno-spe-work-as-expected.patch | 90 90 0 0 ++++
/trunk/samples/powerpc-unknown-linux-gnuspe/crosstool.config | 309 309 0 0 ++++++++++++++
4 files changed, 420 insertions(+)

 # powerpc specific configuration file

 config ARCH_powerpc

     select ARCH_SUPPORT_ABI

     select ARCH_SUPPORT_CPU

     select ARCH_SUPPORT_TUNE

     help

       The PowerPC architecture, as defined by:

         http://www.ibm.com/developerworks/eserver/articles/archguide.html

 config ARCH_POWERPC_SPE

     bool

     prompt "Enable SPE support (EXPERIMENTAL)"

     depends on EXPERIMENTAL

     default n

     help

       Add support for the Signal Processing Engine.