What you're describing only gives you half the benefit of x32. For the code you write yourself you can compile it in 32bit only mode and do those tricks. But fo

What you're describing only gives you half the benefit of x32. For the code you write yourself you can compile it in 32bit only mode and do those tricks. But for everything that's from a library you're using 64bit code and not getting any speedups. Depending on if your code is library heavy or not that can make a huge difference. All that complexity is certainly not worth it versus just shipping a second set of x32 libs. At least that doesn't require those tricks and wrappers and is at least easy to maintain within the current multi-arch infrastructure distros already created to support 32bit binaries in 64bit distros.