Re: [patch 4/4] uml: make it link in tt mode against NPTL glibc

[Al Viro]

On Fri, May 27, 2005 at 02:40:24AM +0200, blaisorblade@xxxxxxxx wrote:
> 
> To make sure switcheroo() can execute when we remap all the executable image,
> we used a trick to make it use a local copy of errno... this trick does not
> work with NPTL glibc, only with LinuxThreads, so use another (simpler) one to
> make it work anyway.
> 
> Might need compile testing on different host archs, since it changes
> __syscall_return from <asm/unistd.h>.

For one thing, it's broken since mmap2() doesn't exist on amd64.  This stuff
*is* low-level - as low-level as it gets.  It's clearly per-architecture.
See ftp.linux.org.uk/pub/people/viro/UM14-unmap-RC12-rc4 for a fix...
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