Re: [uml-devel] [PATCH] Ok, I build x86-64 -skas0, and it still segfaults.

[Rob Landley <rob@landley.net>]

On Friday 18 November 2005 01:58, Blaisorblade wrote:
> On Friday 18 November 2005 08:36, Rob Landley wrote:
> > On Friday 18 November 2005 01:43, Blaisorblade wrote:
> > > On Wednesday 16 November 2005 04:09, Rob Landley wrote:
> > > > On Monday 14 November 2005 13:40, Blaisorblade wrote:
> > >
> > > Ok, clearer: could you try removing altogether that -rlink? I'm trying
> > > here too right now... will follow up with results.
> >
> > I believe I tried that already and the error was the same as when it had
> > the wrong directory.
>
> Ok, right - can you try adding both rlink now (first lib64 and then lib)? I
> gathered some more insight and it should work.

Actually, since the rpath line appends arguments to whatever's already there
and Makefile-$ARCH gets included before that, I suspect the correct thing to
do is append 

LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64

to the end of "arch/um/Makefile-x86_64".  Order should work out ok, and the
path is only modified for x86-64...

The ld man page says:
      -rpath dir
           Add a directory to the runtime library search path.  This  is  used
           when  linking  an  ELF  executable with shared objects.  All -rpath
           arguments are concatenated and passed to the runtime linker,  which
           uses  them  to locate shared objects at runtime.  The -rpath option
           is also used when locating  shared  objects  which  are  needed  by
           shared objects explicitly included in the link; see the description
           of the -rpath-link option.

So that concatenates multiple arguments...

And it worked beautifully.  Here's your patch:

--- linux-2.6.14/arch/um/Makefile-x86_64 2005-10-28 02:02:08.000000000 +0200
+++ linux-2.6.15-rc1/arch/um/Makefile-x86_64 2005-11-18 09:55:39.984601688 +0100
@@ -12,3 +12,5 @@
 
 ELF_ARCH := i386:x86-64
 ELF_FORMAT := elf64-x86-64
+
+LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64

Rob


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