Date: Sun, 5 Aug 2012 14:29:31 -0400 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: Re: musl 0.9.3 released On Mon, Aug 06, 2012 at 12:43:36AM +0800, orc wrote: > Also, does x32 run on plain x86_64? If it does, then probably that It's a separate ABI in userspace (and has some new syscalls for situations where it's necessary to interface with the kernel using a structure that looks different in userspace due to containing pointers), but it runs on a standard 64-bit kernel that's new enough to have x32 support. It's possible to mix x32 and normal x86_64 ABI binaries on the same system, but for dynamic linking they need their own separate library paths. > large apps like Firefox can be compiled and run in that mode can have > benefits. If it is required that you must run only x32 kernel, then I > see no it's benefits currently. It will be much easier to run plain 32 > bits Firefox. Plain 32-bit apps are moderately slower due to not having access to 64-bit arithmetic and the really inefficient i386 ABI. I've heard the difference can be 5-20% depending on the application. Rich
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.