On Mon, Sep 02, 2019 at 12:03:12PM +1000, Michael Ellerman wrote: > Michal Suchanek <msuchanek@xxxxxxx> writes: > > On bigendian ppc64 it is common to have 32bit legacy binaries but much > > less so on littleendian. > > I think the toolchain people will tell you that there is no 32-bit > little endian ABI defined at all, if anything works it's by accident. There of course is a lot of powerpcle-* support. The ABI used for it on linux is the SYSV ABI, just like on BE 32-bit. There also is specific powerpcle-linux support in GCC, and in binutils, too. Also, config.guess/config.sub supports it. Half a year ago this all built fine (no, I don't test it often either). I don't think glibc supports it though, so I wonder if anyone builds an actual system with it? Maybe busybox or the like? > So I think we should not make this selectable, unless someone puts their > hand up to say they want it and are willing to test it and keep it > working. What about actual 32-bit LE systems? Does anyone still use those? Segher
