1*4882a593Smuzhiyun2012/03/30 - Mark Hatle <mark.hatle@windriver.com> 2*4882a593Smuzhiyun - Initial revision 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunThere are 4 primary PowerPC ABIs. 5*4882a593Smuzhiyun# *) Hard/Soft Floating Point 6*4882a593Smuzhiyun# *) 32-bit/64-bit 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunTUNE_ARCH is defined as either "powerpc" or "powerpc64" based on the m32 9*4882a593Smuzhiyunor m64 feature. 10*4882a593Smuzhiyun 11*4882a593SmuzhiyunMay of the PowerPC package archictures are based on legacy Linux names. 12*4882a593SmuzhiyunHowever, a general naming scheme should be similar to: ppc[64][<family>][-nf]. 13*4882a593Smuzhiyun(Note: the default package architectures are "powerpc" and "powerpc64".) 14*4882a593Smuzhiyun 15*4882a593SmuzhiyunTUNE_PKGARCH is defined as TUNE_PKGARCH:tune-${DEFAULTTUNE}. All 16*4882a593SmuzhiyunPowerPC tunings are required to define TUNE_PKGARCH:tune-<tune>. 17*4882a593Smuzhiyun 18