Re: [patch+7.5.1] Work around PR libc/13097 "linux-vdso.so.1" #3

[Mark Kettenis <mark.kettenis@xs4all.nl>]

> Date: Fri, 23 Nov 2012 12:02:41 +0000
> From: Pedro Alves <palves@redhat.com>
> 
> On 11/22/2012 08:17 PM, Jan Kratochvil wrote:
> > Hi,
> > 
> > this is an updated version of
> > 	[RFC] Work around PR libc/13097 "linux-vdso.so.1" #2
> > 	http://sourceware.org/ml/gdb-patches/2011-08/msg00331.html
> > according to the Tom's comment
> > 	http://sourceware.org/bugzilla/show_bug.cgi?id=14466#c3
> > 
> > I remembered it when Joel plans 7.5.1 release, the patch is safe enough and it
> > is a FAQ at least on IRC.
> > 
> > Fedora does not have this issue with its Fedora glibc but I have it
> > reproducible with FSF glibc build:
> > 	./gdb -ex r --args $HOME/glibc-root/lib/ld-linux-x86-64.so.2 --library-path $HOME/glibc-root/lib /bin/true 
> > 	Starting program: /home/.../glibc-root/lib/ld-linux-x86-64.so.2 --library-path /home/.../glibc-root/lib /bin/true
> > 	warning: Could not load shared library symbols for linux-vdso.so.1.
> > 	Do you need "set solib-search-path" or "set sysroot"?
> > 	[Inferior 1 (process 31807) exited normally]
> > 
> > So there is no testcase as I do not know a real OS where it fails (it probably
> > fails on Ubuntu AFAIK).
> > 
> > No regressions on {x86_64,x86_64-m32,i686}-fedora18-linux-gnu.
> > 
> > 
> 
> Won't real file based DSOs in the loader list _always_ be full paths,
> never relative paths?

I doubt it.