On Sunday, August 07, 2011 07:50:42 Raúl Porcel wrote: > The problem is that during the history of the ARM architecture(according > to the wikipedia, the architecture was introduced back in 1981) there > has been some subarchitectures(the most available are armv4, armv4t, > armv5t, armv6j and armv7-a) which include new functions that is not > available on the previous subarchitecture. Something like SSE, SSE2, > SSE3, etc... but in arm is called SIMD, NEON, etc... > > Apart from that, there are some apps that only work in one > subarchitecture because it uses some capabilities only available on that > subarchitecture and newer. Which is the case of valgrind. It only works > with armv7-a. Also there's www-client/chromium, which later versions > only work on >=armv6j. > > With subprofiles we could keyword such packages, mask them globally on > arm and unmask it on the subprofile of the subarchitecture that supports > it. > > We build stage3s for the armv4t, armv5te, armv6j, armv7a > subarchitectures, and we'll make them use the profiles.
makes sense to me -mike
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